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remove the v850 port

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Trying to compile the v850 port brings many compile errors, one of them exists
since at least kernel 2.6.19.

There also seems to be noone willing to bring this port back into a usable
state.

This patch therefore removes the v850 port.

If anyone ever decides to revive the v850 port the code will still be
available from older kernels, and it wouldn't be impossible for the port to
reenter the kernel if it would become actively maintained again.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Adrian Bunk 2008-07-23 21:28:50 -07:00 committed by Linus Torvalds
parent 99764fa4ce
commit f606ddf42f
204 changed files with 5 additions and 18406 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
MAINTAINERS
View file

@ -4131,9 +4131,6 @@ W: http://www.uclinux.org/
L: uclinux-dev@uclinux.org (subscribers-only)
S: Maintained
UCLINUX FOR NEC V850
P: Miles Bader
UCLINUX FOR RENESAS H8/300
P: Yoshinori Sato
M: ysato@users.sourceforge.jp

353
arch/v850/Kconfig
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@ -1,353 +0,0 @@
#############################################################################
#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#
#############################################################################
mainmenu "uClinux/v850 (w/o MMU) Kernel Configuration"
config MMU
bool
default n
config ZONE_DMA
bool
default y
config RWSEM_GENERIC_SPINLOCK
bool
default y
config RWSEM_XCHGADD_ALGORITHM
bool
default n
config GENERIC_FIND_NEXT_BIT
bool
default y
config GENERIC_HWEIGHT
bool
default y
config GENERIC_CALIBRATE_DELAY
bool
default y
config GENERIC_HARDIRQS
bool
default y
config GENERIC_IRQ_PROBE
bool
default y
config GENERIC_TIME
bool
default y
config TIME_LOW_RES
bool
default y
config ARCH_HAS_ILOG2_U32
bool
default n
config ARCH_HAS_ILOG2_U64
bool
default n
config ARCH_SUPPORTS_AOUT
def_bool y
# Turn off some random 386 crap that can affect device config
config ISA
bool
default n
config ISAPNP
bool
default n
config EISA
bool
default n
config MCA
bool
default n
#############################################################################
#### v850-specific config
# Define the architecture
config V850
bool
default y
select HAVE_IDE
menu "Processor type and features"
choice
prompt "Platform"
default GDB
config V850E_SIM
bool "GDB"
config RTE_CB_MA1
bool "RTE-V850E/MA1-CB"
config RTE_CB_NB85E
bool "RTE-V850E/NB85E-CB"
config RTE_CB_ME2
bool "RTE-V850E/ME2-CB"
config V850E_AS85EP1
bool "AS85EP1"
config V850E2_SIM85E2C
bool "sim85e2c"
config V850E2_SIM85E2S
bool "sim85e2s"
config V850E2_FPGA85E2C
bool "NA85E2C-FPGA"
config V850E2_ANNA
bool "Anna"
endchoice
#### V850E processor-specific config
# All CPUs currently supported use the v850e architecture
config V850E
bool
default y
# The RTE-V850E/MA1-CB is the only type of V850E/MA1 platform we
# currently support
config V850E_MA1
bool
depends on RTE_CB_MA1
default y
# Similarly for the RTE-V850E/NB85E-CB - V850E/TEG
config V850E_TEG
bool
depends on RTE_CB_NB85E
default y
# ... and the RTE-V850E/ME2-CB - V850E/ME2
config V850E_ME2
bool
depends on RTE_CB_ME2
default y
#### sim85e2-specific config
config V850E2_SIM85E2
bool
depends on V850E2_SIM85E2C || V850E2_SIM85E2S
default y
#### V850E2 processor-specific config
# V850E2 processors
config V850E2
bool
depends on V850E2_SIM85E2 || V850E2_FPGA85E2C || V850E2_ANNA
default y
#### RTE-CB platform-specific config
# Boards in the RTE-x-CB series
config RTE_CB
bool
depends on RTE_CB_MA1 || RTE_CB_NB85E || RTE_CB_ME2
default y
config RTE_CB_MULTI
bool
# RTE_CB_NB85E can either have multi ROM support or not, but
# other platforms (currently only RTE_CB_MA1) require it.
prompt "Multi monitor ROM support" if RTE_CB_NB85E
depends on RTE_CB_MA1 || RTE_CB_NB85E
default y
config RTE_CB_MULTI_DBTRAP
bool "Pass illegal insn trap / dbtrap to kernel"
depends on RTE_CB_MULTI
default n
config RTE_CB_MA1_KSRAM
bool "Kernel in SRAM (limits size of kernel)"
depends on RTE_CB_MA1 && RTE_CB_MULTI
default n
config RTE_MB_A_PCI
bool "Mother-A PCI support"
depends on RTE_CB
default y
# The GBUS is used to talk to the RTE-MOTHER-A board
config RTE_GBUS_INT
bool
depends on RTE_MB_A_PCI
default y
# The only PCI bus we support is on the RTE-MOTHER-A board
config PCI
bool
default RTE_MB_A_PCI
#### Some feature-specific configs
# Everything except for the GDB simulator uses the same interrupt controller
config V850E_INTC
bool
default !V850E_SIM
# Everything except for the various simulators uses the "Timer D" unit
config V850E_TIMER_D
bool
default !V850E_SIM && !V850E2_SIM85E2
# Cache control used on some v850e1 processors
config V850E_CACHE
bool
default V850E_TEG || V850E_ME2
# Cache control used on v850e2 processors; I think this should
# actually apply to more, but currently only the SIM85E2S uses it
config V850E2_CACHE
bool
default V850E2_SIM85E2S
config NO_CACHE
bool
default !V850E_CACHE && !V850E2_CACHE
# HZ depends on the platform
config HZ
int
default 24 if V850E_SIM || V850E2_SIM85E2
default 122 if V850E2_FPGA85E2C
default 100
#### Misc config
config ROM_KERNEL
bool "Kernel in ROM"
depends on V850E2_ANNA || V850E_AS85EP1 || RTE_CB_ME2
# Some platforms pre-zero memory, in which case the kernel doesn't need to
config ZERO_BSS
bool
depends on !V850E2_SIM85E2C
default y
# The crappy-ass zone allocator requires that the start of allocatable
# memory be aligned to the largest possible allocation.
config FORCE_MAX_ZONEORDER
int
default 8 if V850E2_SIM85E2C || V850E2_FPGA85E2C
config V850E_HIGHRES_TIMER
bool "High resolution timer support"
depends on V850E_TIMER_D
config TIME_BOOTUP
bool "Time bootup"
depends on V850E_HIGHRES_TIMER
config RESET_GUARD
bool "Reset Guard"
source "mm/Kconfig"
endmenu
#############################################################################
source init/Kconfig
#############################################################################
menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)"
# config PCI
# bool "PCI support"
# help
# Support for PCI bus.
source "drivers/pci/Kconfig"
source "drivers/pcmcia/Kconfig"
source "drivers/pci/hotplug/Kconfig"
endmenu
menu "Executable file formats"
source "fs/Kconfig.binfmt"
endmenu
source "net/Kconfig"
#############################################################################
source "drivers/base/Kconfig"
source drivers/mtd/Kconfig
source drivers/parport/Kconfig
#source drivers/pnp/Kconfig
source drivers/block/Kconfig
#############################################################################
menu "Disk device support"
source "drivers/ide/Kconfig"
source "drivers/scsi/Kconfig"
endmenu
#############################################################################
source "drivers/md/Kconfig"
source "drivers/message/fusion/Kconfig"
source "drivers/ieee1394/Kconfig"
source "drivers/message/i2o/Kconfig"
source "drivers/net/Kconfig"
source "drivers/isdn/Kconfig"
#source "drivers/telephony/Kconfig"
#
# input before char - char/joystick depends on it. As does USB.
#
source "drivers/input/Kconfig"
source "drivers/char/Kconfig"
#source drivers/misc/Config.in
source "drivers/media/Kconfig"
source "fs/Kconfig"
source "drivers/video/Kconfig"
source "sound/Kconfig"
source "drivers/usb/Kconfig"
source "arch/v850/Kconfig.debug"
source "security/Kconfig"
source "crypto/Kconfig"
source "lib/Kconfig"
#############################################################################

10
arch/v850/Kconfig.debug
View file

@ -1,10 +0,0 @@
menu "Kernel hacking"
source "lib/Kconfig.debug"
config NO_KERNEL_MSG
bool "Suppress Kernel BUG Messages"
help
Do not output any debug BUG messages within the kernel.
endmenu

54
arch/v850/Makefile
View file

@ -1,54 +0,0 @@
#
# arch/v850/Makefile
#
# Copyright (C) 2001,02,03,05 NEC Corporation
# Copyright (C) 2001,02,03,05 Miles Bader <miles@gnu.org>
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
arch_dir = arch/v850
KBUILD_CFLAGS += -mv850e
# r16 is a fixed pointer to the current task
KBUILD_CFLAGS += -ffixed-r16 -mno-prolog-function
KBUILD_CFLAGS += -fno-builtin
KBUILD_CFLAGS += -D__linux__ -DUTS_SYSNAME=\"uClinux\"
# By default, build a kernel that runs on the gdb v850 simulator.
KBUILD_DEFCONFIG := sim_defconfig
# This prevents the linker from consolidating the .gnu.linkonce.this_module
# section into .text (which the v850 default linker script for -r does for
# some reason)
LDFLAGS_MODULE += --unique=.gnu.linkonce.this_module
OBJCOPY_FLAGS_BLOB := -I binary -O elf32-little -B v850e
head-y := $(arch_dir)/kernel/head.o $(arch_dir)/kernel/init_task.o
core-y += $(arch_dir)/kernel/
libs-y += $(arch_dir)/lib/
# Deal with the initial contents of the root device
ifdef ROOT_FS_IMAGE
core-y += root_fs_image.o
# Because the kernel build-system erases all explicit .o build rules, we
# have to use an intermediate target to fool it into building for us.
# This results in it being built anew each time, but that's alright.
root_fs_image.o: root_fs_image_force
root_fs_image_force: $(ROOT_FS_IMAGE)
$(OBJCOPY) $(OBJCOPY_FLAGS_BLOB) --rename-section .data=.root,alloc,load,readonly,data,contents $< root_fs_image.o
endif
CLEAN_FILES += root_fs_image.o

44
arch/v850/README
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@ -1,44 +0,0 @@
This port to the NEC V850E processor supports the following platforms:
"sim"
The gdb v850e simulator (CONFIG_V850E_SIM).
"rte-ma1-cb"
The Midas labs RTE-V850E/MA1-CB and RTE-V850E/NB85E-CB evaluation
boards (CONFIG_RTE_CB_MA1 and CONFIG_RTE_CB_NB85E). This support
has only been tested when running with the Multi-debugger monitor
ROM (for the Green Hills Multi debugger). The optional NEC
Solution Gear RTE-MOTHER-A motherboard is also supported, which
allows PCI boards to be used (CONFIG_RTE_MB_A_PCI).
"rte-me2-cb"
The Midas labs RTE-V850E/ME2-CB evaluation board (CONFIG_RTE_CB_ME2).
This has only been tested using a kernel downloaded via an ICE
connection using the Multi debugger. Support for the RTE-MOTHER-A is
present, but hasn't been tested (unlike the other Midas labs cpu
boards, the RTE-V850E/ME2-CB includes an ethernet adaptor).
"as85ep1"
The NEC AS85EP1 V850E evaluation chip/board (CONFIG_V850E_AS85EP1).
"anna"
The NEC `Anna' (board/chip) implementation of the V850E2 processor
(CONFIG_V850E2_ANNA).
"sim85e2c", "sim85e2s"
The sim85e2c and sim85e2s simulators, which are verilog simulations
of the V850E2 NA85E2C/NA85E2S cpu cores (CONFIG_V850E2_SIM85E2C and
CONFIG_V850E2_SIM85E2S).
"fpga85e2c"
A FPGA implementation of the V850E2 NA85E2C cpu core
(CONFIG_V850E2_FPGA85E2C).
To get a default kernel configuration for a particular platform, you can
use a <platform>_defconfig make target (e.g., "make rte-me2-cb_defconfig");
to see which default configurations are possible, look in the directory
"arch/v850/configs".
Porting to anything with a V850E/MA1 or MA2 processor should be simple.
See the file <asm-v850/machdep.h> and the files it includes for an example of
how to add platform/chip-specific support.

617
arch/v850/configs/rte-ma1-cb_defconfig
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@ -1,617 +0,0 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.13-uc0
# Fri Sep 2 13:54:27 2005
#
# CONFIG_MMU is not set
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
CONFIG_GENERIC_CALIBRATE_DELAY=y
# CONFIG_ISA is not set
# CONFIG_ISAPNP is not set
# CONFIG_EISA is not set
# CONFIG_MCA is not set
CONFIG_V850=y
#
# Processor type and features
#
# CONFIG_V850E_SIM is not set
CONFIG_RTE_CB_MA1=y
# CONFIG_RTE_CB_NB85E is not set
# CONFIG_RTE_CB_ME2 is not set
# CONFIG_V850E_AS85EP1 is not set
# CONFIG_V850E2_SIM85E2C is not set
# CONFIG_V850E2_SIM85E2S is not set
# CONFIG_V850E2_FPGA85E2C is not set
# CONFIG_V850E2_ANNA is not set
CONFIG_V850E=y
CONFIG_V850E_MA1=y
CONFIG_RTE_CB=y
CONFIG_RTE_CB_MULTI=y
CONFIG_RTE_CB_MULTI_DBTRAP=y
# CONFIG_RTE_CB_MA1_KSRAM is not set
CONFIG_RTE_MB_A_PCI=y
CONFIG_RTE_GBUS_INT=y
CONFIG_PCI=y
CONFIG_V850E_INTC=y
CONFIG_V850E_TIMER_D=y
# CONFIG_V850E_CACHE is not set
# CONFIG_V850E2_CACHE is not set
CONFIG_NO_CACHE=y
CONFIG_ZERO_BSS=y
# CONFIG_V850E_HIGHRES_TIMER is not set
# CONFIG_RESET_GUARD is not set
CONFIG_LARGE_ALLOCS=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
#
# Code maturity level options
#
# CONFIG_EXPERIMENTAL is not set
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
#
# General setup
#
CONFIG_LOCALVERSION=""
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_SYSCTL is not set
# CONFIG_AUDIT is not set
# CONFIG_HOTPLUG is not set
CONFIG_KOBJECT_UEVENT=y
# CONFIG_IKCONFIG is not set
CONFIG_EMBEDDED=y
# CONFIG_KALLSYMS is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
# CONFIG_BASE_FULL is not set
# CONFIG_FUTEX is not set
# CONFIG_EPOLL is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
CONFIG_BASE_SMALL=1
#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_OBSOLETE_MODPARM=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
#
# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
#
# CONFIG_PCI_LEGACY_PROC is not set
# CONFIG_PCI_NAMES is not set
# CONFIG_PCI_DEBUG is not set
#
# PCCARD (PCMCIA/CardBus) support
#
# CONFIG_PCCARD is not set
#
# PCI Hotplug Support
#
#
# Executable file formats
#
CONFIG_BINFMT_FLAT=y
# CONFIG_BINFMT_ZFLAT is not set
# CONFIG_BINFMT_SHARED_FLAT is not set
# CONFIG_BINFMT_MISC is not set
#
# Networking
#
CONFIG_NET=y
#
# Networking options
#
# CONFIG_PACKET is not set
# CONFIG_UNIX is not set
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_FIB_HASH=y
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_INET_AH is not set
# CONFIG_INET_ESP is not set
# CONFIG_INET_IPCOMP is not set
# CONFIG_INET_TUNNEL is not set
# CONFIG_IP_TCPDIAG is not set
# CONFIG_IP_TCPDIAG_IPV6 is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_BIC=y
# CONFIG_IPV6 is not set
# CONFIG_NETFILTER is not set
# CONFIG_BRIDGE is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_NET_SCHED is not set
# CONFIG_NET_CLS_ROUTE is not set
#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_HAMRADIO is not set
# CONFIG_IRDA is not set
# CONFIG_BT is not set
#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
# CONFIG_FW_LOADER is not set
# CONFIG_DEBUG_DRIVER is not set
#
# Memory Technology Devices (MTD)
#
CONFIG_MTD=y
# CONFIG_MTD_DEBUG is not set
# CONFIG_MTD_CONCAT is not set
# CONFIG_MTD_PARTITIONS is not set
#
# User Modules And Translation Layers
#
# CONFIG_MTD_CHAR is not set
CONFIG_MTD_BLOCK=y
# CONFIG_FTL is not set
# CONFIG_NFTL is not set
# CONFIG_INFTL is not set
#
# RAM/ROM/Flash chip drivers
#
# CONFIG_MTD_CFI is not set
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PLATRAM is not set
#
# Self-contained MTD device drivers
#
# CONFIG_MTD_PMC551 is not set
CONFIG_MTD_SLRAM=y
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_BLKMTD is not set
#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOC2000 is not set
# CONFIG_MTD_DOC2001 is not set
# CONFIG_MTD_DOC2001PLUS is not set
#
# NAND Flash Device Drivers
#
# CONFIG_MTD_NAND is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_CPQ_DA is not set
# CONFIG_BLK_CPQ_CISS_DA is not set
# CONFIG_BLK_DEV_DAC960 is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_NBD is not set
# CONFIG_BLK_DEV_SX8 is not set
# CONFIG_BLK_DEV_RAM is not set
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_CDROM_PKTCDVD is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_AS is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
# CONFIG_ATA_OVER_ETH is not set
#
# Disk device support
#
#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set
#
# SCSI device support
#
# CONFIG_SCSI is not set
#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
#
# Fusion MPT device support
#
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
# CONFIG_IEEE1394 is not set
#
# I2O device support
#
# CONFIG_I2O is not set
#
# Network device support
#
CONFIG_NETDEVICES=y
# CONFIG_DUMMY is not set
# CONFIG_BONDING is not set
# CONFIG_EQUALIZER is not set
# CONFIG_TUN is not set
#
# ARCnet devices
#
# CONFIG_ARCNET is not set
#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
# CONFIG_HAPPYMEAL is not set
# CONFIG_SUNGEM is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_SMC is not set
#
# Tulip family network device support
#
# CONFIG_NET_TULIP is not set
# CONFIG_HP100 is not set
# CONFIG_NE2000 is not set
CONFIG_NET_PCI=y
# CONFIG_PCNET32 is not set
# CONFIG_AMD8111_ETH is not set
# CONFIG_ADAPTEC_STARFIRE is not set
# CONFIG_DGRS is not set
CONFIG_EEPRO100=y
# CONFIG_E100 is not set
# CONFIG_FEALNX is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_8139TOO is not set
# CONFIG_SIS900 is not set
# CONFIG_EPIC100 is not set
# CONFIG_SUNDANCE is not set
# CONFIG_TLAN is not set
# CONFIG_VIA_RHINE is not set
#
# Ethernet (1000 Mbit)
#
# CONFIG_ACENIC is not set
# CONFIG_DL2K is not set
# CONFIG_E1000 is not set
# CONFIG_NS83820 is not set
# CONFIG_HAMACHI is not set
# CONFIG_R8169 is not set
# CONFIG_SK98LIN is not set
# CONFIG_VIA_VELOCITY is not set
# CONFIG_TIGON3 is not set
# CONFIG_BNX2 is not set
#
# Ethernet (10000 Mbit)
#
# CONFIG_IXGB is not set
# CONFIG_S2IO is not set
#
# Token Ring devices
#
# CONFIG_TR is not set
#
# Wireless LAN (non-hamradio)
#
# CONFIG_NET_RADIO is not set
#
# Wan interfaces
#
# CONFIG_WAN is not set
# CONFIG_FDDI is not set
# CONFIG_PPP is not set
# CONFIG_SLIP is not set
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
#
# ISDN subsystem
#
# CONFIG_ISDN is not set
#
# Input device support
#
CONFIG_INPUT=y
#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
# CONFIG_VT is not set
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
#
# Non-8250 serial port support
#
CONFIG_V850E_UART=y
CONFIG_V850E_UART_CONSOLE=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_JSM is not set
# CONFIG_UNIX98_PTYS is not set
# CONFIG_LEGACY_PTYS is not set
#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_RTC is not set
# CONFIG_GEN_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
# CONFIG_APPLICOM is not set
#
# Ftape, the floppy tape device driver
#
# CONFIG_DRM is not set
# CONFIG_RAW_DRIVER is not set
#
# TPM devices
#
#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# Digital Video Broadcasting Devices
#
# CONFIG_DVB is not set
#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
#
# XFS support
#
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
CONFIG_ROMFS_FS=y
# CONFIG_MAGIC_ROM_PTR is not set
CONFIG_INOTIFY=y
# CONFIG_QUOTA is not set
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_SYSFS=y
# CONFIG_TMPFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
#
# Miscellaneous filesystems
#
# CONFIG_HFSPLUS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
#
# Network File Systems
#
CONFIG_NFS_FS=y
CONFIG_NFS_V3=y
# CONFIG_NFS_V3_ACL is not set
# CONFIG_NFSD is not set
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
# CONFIG_SMB_FS is not set
# CONFIG_CIFS is not set
# CONFIG_NCP_FS is not set
# CONFIG_CODA_FS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
#
# Native Language Support
#
# CONFIG_NLS is not set
#
# Graphics support
#
# CONFIG_FB is not set
#
# Sound
#
# CONFIG_SOUND is not set
#
# USB support
#
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
# CONFIG_USB is not set
#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_SCHEDSTATS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_FS is not set
# CONFIG_NO_KERNEL_MSG is not set
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
# CONFIG_CRYPTO is not set
#
# Hardware crypto devices
#
#
# Library routines
#
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC32 is not set
# CONFIG_LIBCRC32C is not set

462
arch/v850/configs/rte-me2-cb_defconfig
View file

@ -1,462 +0,0 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.13-uc0
# Fri Sep 2 13:47:50 2005
#
# CONFIG_MMU is not set
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
CONFIG_GENERIC_CALIBRATE_DELAY=y
# CONFIG_ISA is not set
# CONFIG_ISAPNP is not set
# CONFIG_EISA is not set
# CONFIG_MCA is not set
CONFIG_V850=y
#
# Processor type and features
#
# CONFIG_V850E_SIM is not set
# CONFIG_RTE_CB_MA1 is not set
# CONFIG_RTE_CB_NB85E is not set
CONFIG_RTE_CB_ME2=y
# CONFIG_V850E_AS85EP1 is not set
# CONFIG_V850E2_SIM85E2C is not set
# CONFIG_V850E2_SIM85E2S is not set
# CONFIG_V850E2_FPGA85E2C is not set
# CONFIG_V850E2_ANNA is not set
CONFIG_V850E=y
CONFIG_V850E_ME2=y
CONFIG_RTE_CB=y
# CONFIG_RTE_MB_A_PCI is not set
# CONFIG_PCI is not set
CONFIG_V850E_INTC=y
CONFIG_V850E_TIMER_D=y
CONFIG_V850E_CACHE=y
# CONFIG_V850E2_CACHE is not set
# CONFIG_NO_CACHE is not set
# CONFIG_ROM_KERNEL is not set
CONFIG_ZERO_BSS=y
# CONFIG_V850E_HIGHRES_TIMER is not set
# CONFIG_RESET_GUARD is not set
CONFIG_LARGE_ALLOCS=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
#
# Code maturity level options
#
# CONFIG_EXPERIMENTAL is not set
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
#
# General setup
#
CONFIG_LOCALVERSION=""
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_SYSCTL is not set
# CONFIG_HOTPLUG is not set
# CONFIG_IKCONFIG is not set
CONFIG_EMBEDDED=y
# CONFIG_KALLSYMS is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
# CONFIG_BASE_FULL is not set
# CONFIG_FUTEX is not set
# CONFIG_EPOLL is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
CONFIG_BASE_SMALL=1
#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_OBSOLETE_MODPARM=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
#
# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
#
#
# PCCARD (PCMCIA/CardBus) support
#
# CONFIG_PCCARD is not set
#
# PCI Hotplug Support
#
#
# Executable file formats
#
CONFIG_BINFMT_FLAT=y
# CONFIG_BINFMT_ZFLAT is not set
# CONFIG_BINFMT_SHARED_FLAT is not set
# CONFIG_BINFMT_MISC is not set
#
# Networking
#
# CONFIG_NET is not set
#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
# CONFIG_FW_LOADER is not set
# CONFIG_DEBUG_DRIVER is not set
#
# Memory Technology Devices (MTD)
#
CONFIG_MTD=y
# CONFIG_MTD_DEBUG is not set
# CONFIG_MTD_CONCAT is not set
# CONFIG_MTD_PARTITIONS is not set
#
# User Modules And Translation Layers
#
# CONFIG_MTD_CHAR is not set
CONFIG_MTD_BLOCK=y
# CONFIG_FTL is not set
# CONFIG_NFTL is not set
# CONFIG_INFTL is not set
#
# RAM/ROM/Flash chip drivers
#
# CONFIG_MTD_CFI is not set
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PLATRAM is not set
#
# Self-contained MTD device drivers
#
CONFIG_MTD_SLRAM=y
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_BLKMTD is not set
#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOC2000 is not set
# CONFIG_MTD_DOC2001 is not set
# CONFIG_MTD_DOC2001PLUS is not set
#
# NAND Flash Device Drivers
#
# CONFIG_MTD_NAND is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_RAM is not set
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_CDROM_PKTCDVD is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_AS is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
#
# Disk device support
#
#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set
#
# SCSI device support
#
# CONFIG_SCSI is not set
#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
#
# Fusion MPT device support
#
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
#
# I2O device support
#
#
# Network device support
#
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
#
# ISDN subsystem
#
#
# Input device support
#
CONFIG_INPUT=y
#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
# CONFIG_SERIO_I8042 is not set
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_LIBPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
# CONFIG_VT is not set
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=1
# CONFIG_SERIAL_8250_EXTENDED is not set
#
# Non-8250 serial port support
#
# CONFIG_V850E_UART is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_UNIX98_PTYS is not set
# CONFIG_LEGACY_PTYS is not set
#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_RTC is not set
# CONFIG_GEN_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
#
# Ftape, the floppy tape device driver
#
# CONFIG_RAW_DRIVER is not set
#
# TPM devices
#
#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# Digital Video Broadcasting Devices
#
#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
#
# XFS support
#
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
CONFIG_ROMFS_FS=y
# CONFIG_MAGIC_ROM_PTR is not set
CONFIG_INOTIFY=y
# CONFIG_QUOTA is not set
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_SYSFS=y
# CONFIG_TMPFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
#
# Miscellaneous filesystems
#
# CONFIG_HFSPLUS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
#
# Native Language Support
#
# CONFIG_NLS is not set
#
# Graphics support
#
# CONFIG_FB is not set
#
# Sound
#
# CONFIG_SOUND is not set
#
# USB support
#
# CONFIG_USB_ARCH_HAS_HCD is not set
# CONFIG_USB_ARCH_HAS_OHCI is not set
#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_SCHEDSTATS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_FS is not set
# CONFIG_NO_KERNEL_MSG is not set
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
# CONFIG_CRYPTO is not set
#
# Hardware crypto devices
#
#
# Library routines
#
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC32 is not set
# CONFIG_LIBCRC32C is not set

451
arch/v850/configs/sim_defconfig
View file

@ -1,451 +0,0 @@
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.13-uc0
# Fri Sep 2 13:36:43 2005
#
# CONFIG_MMU is not set
# CONFIG_UID16 is not set
CONFIG_RWSEM_GENERIC_SPINLOCK=y
# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
CONFIG_GENERIC_CALIBRATE_DELAY=y
# CONFIG_ISA is not set
# CONFIG_ISAPNP is not set
# CONFIG_EISA is not set
# CONFIG_MCA is not set
CONFIG_V850=y
#
# Processor type and features
#
CONFIG_V850E_SIM=y
# CONFIG_RTE_CB_MA1 is not set
# CONFIG_RTE_CB_NB85E is not set
# CONFIG_RTE_CB_ME2 is not set
# CONFIG_V850E_AS85EP1 is not set
# CONFIG_V850E2_SIM85E2C is not set
# CONFIG_V850E2_SIM85E2S is not set
# CONFIG_V850E2_FPGA85E2C is not set
# CONFIG_V850E2_ANNA is not set
CONFIG_V850E=y
# CONFIG_PCI is not set
# CONFIG_V850E_INTC is not set
# CONFIG_V850E_TIMER_D is not set
# CONFIG_V850E_CACHE is not set
# CONFIG_V850E2_CACHE is not set
CONFIG_NO_CACHE=y
CONFIG_ZERO_BSS=y
# CONFIG_RESET_GUARD is not set
CONFIG_LARGE_ALLOCS=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
#
# Code maturity level options
#
# CONFIG_EXPERIMENTAL is not set
CONFIG_CLEAN_COMPILE=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
#
# General setup
#
CONFIG_LOCALVERSION=""
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_SYSCTL is not set
# CONFIG_HOTPLUG is not set
# CONFIG_IKCONFIG is not set
CONFIG_EMBEDDED=y
# CONFIG_KALLSYMS is not set
CONFIG_PRINTK=y
CONFIG_BUG=y
# CONFIG_BASE_FULL is not set
# CONFIG_FUTEX is not set
# CONFIG_EPOLL is not set
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_CC_ALIGN_FUNCTIONS=0
CONFIG_CC_ALIGN_LABELS=0
CONFIG_CC_ALIGN_LOOPS=0
CONFIG_CC_ALIGN_JUMPS=0
CONFIG_BASE_SMALL=1
#
# Loadable module support
#
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_OBSOLETE_MODPARM=y
# CONFIG_MODULE_SRCVERSION_ALL is not set
CONFIG_KMOD=y
#
# Bus options (PCI, PCMCIA, EISA, MCA, ISA)
#
#
# PCCARD (PCMCIA/CardBus) support
#
# CONFIG_PCCARD is not set
#
# PCI Hotplug Support
#
#
# Executable file formats
#
CONFIG_BINFMT_FLAT=y
# CONFIG_BINFMT_ZFLAT is not set
# CONFIG_BINFMT_SHARED_FLAT is not set
# CONFIG_BINFMT_MISC is not set
#
# Networking
#
# CONFIG_NET is not set
#
# Generic Driver Options
#
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y
# CONFIG_FW_LOADER is not set
# CONFIG_DEBUG_DRIVER is not set
#
# Memory Technology Devices (MTD)
#
CONFIG_MTD=y
# CONFIG_MTD_DEBUG is not set
# CONFIG_MTD_CONCAT is not set
# CONFIG_MTD_PARTITIONS is not set
#
# User Modules And Translation Layers
#
# CONFIG_MTD_CHAR is not set
CONFIG_MTD_BLOCK=y
# CONFIG_FTL is not set
# CONFIG_NFTL is not set
# CONFIG_INFTL is not set
#
# RAM/ROM/Flash chip drivers
#
# CONFIG_MTD_CFI is not set
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
# CONFIG_MTD_RAM is not set
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_ABSENT is not set
#
# Mapping drivers for chip access
#
# CONFIG_MTD_COMPLEX_MAPPINGS is not set
# CONFIG_MTD_PLATRAM is not set
#
# Self-contained MTD device drivers
#
CONFIG_MTD_SLRAM=y
# CONFIG_MTD_PHRAM is not set
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_BLKMTD is not set
#
# Disk-On-Chip Device Drivers
#
# CONFIG_MTD_DOC2000 is not set
# CONFIG_MTD_DOC2001 is not set
# CONFIG_MTD_DOC2001PLUS is not set
#
# NAND Flash Device Drivers
#
# CONFIG_MTD_NAND is not set
#
# Parallel port support
#
# CONFIG_PARPORT is not set
#
# Block devices
#
# CONFIG_BLK_DEV_FD is not set
# CONFIG_BLK_DEV_COW_COMMON is not set
# CONFIG_BLK_DEV_LOOP is not set
# CONFIG_BLK_DEV_RAM is not set
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_CDROM_PKTCDVD is not set
#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
# CONFIG_IOSCHED_AS is not set
# CONFIG_IOSCHED_DEADLINE is not set
# CONFIG_IOSCHED_CFQ is not set
#
# Disk device support
#
#
# ATA/ATAPI/MFM/RLL support
#
# CONFIG_IDE is not set
#
# SCSI device support
#
# CONFIG_SCSI is not set
#
# Multi-device support (RAID and LVM)
#
# CONFIG_MD is not set
#
# Fusion MPT device support
#
# CONFIG_FUSION is not set
#
# IEEE 1394 (FireWire) support
#
#
# I2O device support
#
#
# Network device support
#
# CONFIG_NETPOLL is not set
# CONFIG_NET_POLL_CONTROLLER is not set
#
# ISDN subsystem
#
#
# Input device support
#
CONFIG_INPUT=y
#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_TSDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set
#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
#
# Hardware I/O ports
#
CONFIG_SERIO=y
# CONFIG_SERIO_I8042 is not set
# CONFIG_SERIO_SERPORT is not set
# CONFIG_SERIO_LIBPS2 is not set
# CONFIG_SERIO_RAW is not set
# CONFIG_GAMEPORT is not set
#
# Character devices
#
# CONFIG_VT is not set
# CONFIG_SERIAL_NONSTANDARD is not set
#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set
#
# Non-8250 serial port support
#
# CONFIG_UNIX98_PTYS is not set
# CONFIG_LEGACY_PTYS is not set
#
# IPMI
#
# CONFIG_IPMI_HANDLER is not set
#
# Watchdog Cards
#
# CONFIG_WATCHDOG is not set
# CONFIG_RTC is not set
# CONFIG_GEN_RTC is not set
# CONFIG_DTLK is not set
# CONFIG_R3964 is not set
#
# Ftape, the floppy tape device driver
#
# CONFIG_RAW_DRIVER is not set
#
# TPM devices
#
#
# Multimedia devices
#
# CONFIG_VIDEO_DEV is not set
#
# Digital Video Broadcasting Devices
#
#
# File systems
#
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_JBD is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_FS_POSIX_ACL is not set
#
# XFS support
#
# CONFIG_XFS_FS is not set
# CONFIG_MINIX_FS is not set
CONFIG_ROMFS_FS=y
# CONFIG_MAGIC_ROM_PTR is not set
CONFIG_INOTIFY=y
# CONFIG_QUOTA is not set
CONFIG_DNOTIFY=y
# CONFIG_AUTOFS_FS is not set
# CONFIG_AUTOFS4_FS is not set
#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
#
# DOS/FAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_NTFS_FS is not set
#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_SYSFS=y
# CONFIG_TMPFS is not set
# CONFIG_HUGETLB_PAGE is not set
CONFIG_RAMFS=y
#
# Miscellaneous filesystems
#
# CONFIG_HFSPLUS_FS is not set
# CONFIG_JFFS_FS is not set
# CONFIG_JFFS2_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
#
# Native Language Support
#
# CONFIG_NLS is not set
#
# Graphics support
#
# CONFIG_FB is not set
#
# Sound
#
# CONFIG_SOUND is not set
#
# USB support
#
# CONFIG_USB_ARCH_HAS_HCD is not set
# CONFIG_USB_ARCH_HAS_OHCI is not set
#
# USB Gadget Support
#
# CONFIG_USB_GADGET is not set
#
# Kernel hacking
#
# CONFIG_PRINTK_TIME is not set
CONFIG_DEBUG_KERNEL=y
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_LOG_BUF_SHIFT=14
# CONFIG_SCHEDSTATS is not set
# CONFIG_DEBUG_SLAB is not set
# CONFIG_DEBUG_SPINLOCK is not set
# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
# CONFIG_DEBUG_KOBJECT is not set
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_FS is not set
# CONFIG_NO_KERNEL_MSG is not set
#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY is not set
#
# Cryptographic options
#
# CONFIG_CRYPTO is not set
#
# Hardware crypto devices
#
#
# Library routines
#
# CONFIG_CRC_CCITT is not set
# CONFIG_CRC32 is not set
# CONFIG_LIBCRC32C is not set

40
arch/v850/kernel/Makefile
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@ -1,40 +0,0 @@
#
# arch/v850/kernel/Makefile
#
# Copyright (C) 2001,02,03 NEC Electronics Corporation
# Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
extra-y := head.o init_task.o vmlinux.lds
obj-y += intv.o entry.o process.o syscalls.o time.o setup.o \
signal.o irq.o mach.o ptrace.o bug.o
obj-$(CONFIG_MODULES) += module.o v850_ksyms.o
# chip-specific code
obj-$(CONFIG_V850E_MA1) += ma.o
obj-$(CONFIG_V850E_ME2) += me2.o
obj-$(CONFIG_V850E_TEG) += teg.o
obj-$(CONFIG_V850E_AS85EP1) += as85ep1.o
obj-$(CONFIG_V850E2_ANNA) += anna.o
# platform-specific code
obj-$(CONFIG_V850E_SIM) += sim.o simcons.o
obj-$(CONFIG_V850E2_SIM85E2) += sim85e2.o memcons.o
obj-$(CONFIG_V850E2_FPGA85E2C) += fpga85e2c.o memcons.o
obj-$(CONFIG_RTE_CB) += rte_cb.o rte_cb_leds.o
obj-$(CONFIG_RTE_CB_MA1) += rte_ma1_cb.o
obj-$(CONFIG_RTE_CB_ME2) += rte_me2_cb.o
obj-$(CONFIG_RTE_CB_NB85E) += rte_nb85e_cb.o
obj-$(CONFIG_RTE_CB_MULTI) += rte_cb_multi.o
obj-$(CONFIG_RTE_MB_A_PCI) += rte_mb_a_pci.o
obj-$(CONFIG_RTE_GBUS_INT) += gbus_int.o
# feature-specific code
obj-$(CONFIG_V850E_INTC) += v850e_intc.o
obj-$(CONFIG_V850E_TIMER_D) += v850e_timer_d.o v850e_utils.o
obj-$(CONFIG_V850E_CACHE) += v850e_cache.o
obj-$(CONFIG_V850E2_CACHE) += v850e2_cache.o
obj-$(CONFIG_V850E_HIGHRES_TIMER) += highres_timer.o
obj-$(CONFIG_PROC_FS) += procfs.o

16
arch/v850/kernel/anna-rom.ld
View file

@ -1,16 +0,0 @@
/* Linker script for the Midas labs Anna V850E2 evaluation board
(CONFIG_V850E2_ANNA), with kernel in ROM (CONFIG_ROM_KERNEL). */
MEMORY {
/* 8MB of flash ROM. */
ROM : ORIGIN = 0, LENGTH = 0x00800000
/* 1MB of static RAM. This memory is mirrored 64 times. */
SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
/* 64MB of DRAM. */
SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
}
SECTIONS {
ROMK_SECTIONS(ROM, SRAM)
}

202
arch/v850/kernel/anna.c
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@ -1,202 +0,0 @@
/*
* arch/v850/kernel/anna.c -- Anna V850E2 evaluation chip/board
*
* Copyright (C) 2002,03 NEC Electronics Corporation
* Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/major.h>
#include <linux/irq.h>
#include <asm/machdep.h>
#include <asm/atomic.h>
#include <asm/page.h>
#include <asm/v850e_timer_d.h>
#include <asm/v850e_uart.h>
#include "mach.h"
/* SRAM and SDRAM are vaguely contiguous (with a big hole in between; see
mach_reserve_bootmem for details); use both as one big area. */
#define RAM_START SRAM_ADDR
#define RAM_END (SDRAM_ADDR + SDRAM_SIZE)
/* The bits of this port are connected to an 8-LED bar-graph. */
#define LEDS_PORT 0
static void anna_led_tick (void);
void __init mach_early_init (void)
{
ANNA_ILBEN = 0;
V850E2_CSC(0) = 0x402F;
V850E2_CSC(1) = 0x4000;
V850E2_BPC = 0;
V850E2_BSC = 0xAAAA;
V850E2_BEC = 0;
#if 0
V850E2_BHC = 0xFFFF; /* icache all memory, dcache all */
#else
V850E2_BHC = 0; /* cache no memory */
#endif
V850E2_BCT(0) = 0xB088;
V850E2_BCT(1) = 0x0008;
V850E2_DWC(0) = 0x0027;
V850E2_DWC(1) = 0;
V850E2_BCC = 0x0006;
V850E2_ASC = 0;
V850E2_LBS = 0x0089;
V850E2_SCR(3) = 0x21A9;
V850E2_RFS(3) = 0x8121;
v850e_intc_disable_irqs ();
}
void __init mach_setup (char **cmdline)
{
ANNA_PORT_PM (LEDS_PORT) = 0; /* Make all LED pins output pins. */
mach_tick = anna_led_tick;
}
void __init mach_get_physical_ram (unsigned long *ram_start,
unsigned long *ram_len)
{
*ram_start = RAM_START;
*ram_len = RAM_END - RAM_START;
}
void __init mach_reserve_bootmem ()
{
/* The space between SRAM and SDRAM is filled with duplicate
images of SRAM. Prevent the kernel from using them. */
reserve_bootmem (SRAM_ADDR + SRAM_SIZE,
SDRAM_ADDR - (SRAM_ADDR + SRAM_SIZE),
BOOTMEM_DEFAULT);
}
void mach_gettimeofday (struct timespec *tv)
{
tv->tv_sec = 0;
tv->tv_nsec = 0;
}
void __init mach_sched_init (struct irqaction *timer_action)
{
/* Start hardware timer. */
v850e_timer_d_configure (0, HZ);
/* Install timer interrupt handler. */
setup_irq (IRQ_INTCMD(0), timer_action);
}
static struct v850e_intc_irq_init irq_inits[] = {
{ "IRQ", 0, NUM_MACH_IRQS, 1, 7 },
{ "PIN", IRQ_INTP(0), IRQ_INTP_NUM, 1, 4 },
{ "CCC", IRQ_INTCCC(0), IRQ_INTCCC_NUM, 1, 5 },
{ "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 },
{ "DMA", IRQ_INTDMA(0), IRQ_INTDMA_NUM, 1, 2 },
{ "DMXER", IRQ_INTDMXER,1, 1, 2 },
{ "SRE", IRQ_INTSRE(0), IRQ_INTSRE_NUM, 3, 3 },
{ "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 3, 4 },
{ "ST", IRQ_INTST(0), IRQ_INTST_NUM, 3, 5 },
{ 0 }
};
#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
void __init mach_init_irqs (void)
{
v850e_intc_init_irq_types (irq_inits, hw_itypes);
}
void machine_restart (char *__unused)
{
#ifdef CONFIG_RESET_GUARD
disable_reset_guard ();
#endif
asm ("jmp r0"); /* Jump to the reset vector. */
}
void machine_halt (void)
{
#ifdef CONFIG_RESET_GUARD
disable_reset_guard ();
#endif
local_irq_disable (); /* Ignore all interrupts. */
ANNA_PORT_IO(LEDS_PORT) = 0xAA; /* Note that we halted. */
for (;;)
asm ("halt; nop; nop; nop; nop; nop");
}
void machine_power_off (void)
{
machine_halt ();
}
/* Called before configuring an on-chip UART. */
void anna_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
{
/* The Anna connects some general-purpose I/O pins on the CPU to
the RTS/CTS lines of UART 1's serial connection. I/O pins P07
and P37 are RTS and CTS respectively. */
if (chan == 1) {
ANNA_PORT_PM(0) &= ~0x80; /* P07 in output mode */
ANNA_PORT_PM(3) |= 0x80; /* P37 in input mode */
}
}
/* Minimum and maximum bounds for the moving upper LED boundary in the
clock tick display. We can't use the last bit because it's used for
UART0's CTS output. */
#define MIN_MAX_POS 0
#define MAX_MAX_POS 6
/* There are MAX_MAX_POS^2 - MIN_MAX_POS^2 cycles in the animation, so if
we pick 6 and 0 as above, we get 49 cycles, which is when divided into
the standard 100 value for HZ, gives us an almost 1s total time. */
#define TICKS_PER_FRAME \
(HZ / (MAX_MAX_POS * MAX_MAX_POS - MIN_MAX_POS * MIN_MAX_POS))
static void anna_led_tick ()
{
static unsigned counter = 0;
if (++counter == TICKS_PER_FRAME) {
static int pos = 0, max_pos = MAX_MAX_POS, dir = 1;
if (dir > 0 && pos == max_pos) {
dir = -1;
if (max_pos == MIN_MAX_POS)
max_pos = MAX_MAX_POS;
else
max_pos--;
} else {
if (dir < 0 && pos == 0)
dir = 1;
if (pos + dir <= max_pos) {
/* Each bit of port 0 has a LED. */
clear_bit (pos, &ANNA_PORT_IO(LEDS_PORT));
pos += dir;
set_bit (pos, &ANNA_PORT_IO(LEDS_PORT));
}
}
counter = 0;
}
}

20
arch/v850/kernel/anna.ld
View file

@ -1,20 +0,0 @@
/* Linker script for the Midas labs Anna V850E2 evaluation board
(CONFIG_V850E2_ANNA). */
MEMORY {
/* 256KB of internal memory (followed by one mirror). */
iMEM0 : ORIGIN = 0, LENGTH = 0x00040000
/* 256KB of internal memory (followed by one mirror). */
iMEM1 : ORIGIN = 0x00040000, LENGTH = 0x00040000
/* 1MB of static RAM. This memory is mirrored 64 times. */
SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
/* 64MB of DRAM. */
SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
}
SECTIONS {
.intv : { INTV_CONTENTS } > iMEM0
.sram : { RAMK_KRAM_CONTENTS } > SRAM
.root : { ROOT_FS_CONTENTS } > SDRAM
}

21
arch/v850/kernel/as85ep1-rom.ld
View file

@ -1,21 +0,0 @@
/* Linker script for the NEC AS85EP1 V850E evaluation board
(CONFIG_V850E_AS85EP1), with kernel in ROM (CONFIG_ROM_KERNEL). */
MEMORY {
/* 4MB of flash ROM. */
ROM : ORIGIN = 0, LENGTH = 0x00400000
/* 1MB of static RAM. */
SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
/* About 58MB of DRAM. This can actually be at one of two
positions, determined by jumper JP3; we have to use the first
position because the second is partially out of processor
instruction addressing range (though in the second position
there's actually 64MB available). */
SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
}
SECTIONS {
ROMK_SECTIONS(ROM, SRAM)
}

234
arch/v850/kernel/as85ep1.c
View file

@ -1,234 +0,0 @@
/*
* arch/v850/kernel/as85ep1.c -- AS85EP1 V850E evaluation chip/board
*
* Copyright (C) 2002,03 NEC Electronics Corporation
* Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/major.h>
#include <linux/irq.h>
#include <asm/machdep.h>
#include <asm/atomic.h>
#include <asm/page.h>
#include <asm/v850e_timer_d.h>
#include <asm/v850e_uart.h>
#include "mach.h"
/* SRAM and SDRAM are vaguely contiguous (with a big hole in between; see
mach_reserve_bootmem for details); use both as one big area. */
#define RAM_START SRAM_ADDR
#define RAM_END (SDRAM_ADDR + SDRAM_SIZE)
/* The bits of this port are connected to an 8-LED bar-graph. */
#define LEDS_PORT 4
static void as85ep1_led_tick (void);
extern char _intv_copy_src_start, _intv_copy_src_end;
extern char _intv_copy_dst_start;
void __init mach_early_init (void)
{
#ifndef CONFIG_ROM_KERNEL
const u32 *src;
register u32 *dst asm ("ep");
#endif
AS85EP1_CSC(0) = 0x0403;
AS85EP1_BCT(0) = 0xB8B8;
AS85EP1_DWC(0) = 0x0104;
AS85EP1_BCC = 0x0012;
AS85EP1_ASC = 0;
AS85EP1_LBS = 0x00A9;
AS85EP1_PORT_PMC(6) = 0xFF; /* valid A0,A1,A20-A25 */
AS85EP1_PORT_PMC(7) = 0x0E; /* valid CS1-CS3 */
AS85EP1_PORT_PMC(9) = 0xFF; /* valid D16-D23 */
AS85EP1_PORT_PMC(10) = 0xFF; /* valid D24-D31 */
AS85EP1_RFS(1) = 0x800c;
AS85EP1_RFS(3) = 0x800c;
AS85EP1_SCR(1) = 0x20A9;
AS85EP1_SCR(3) = 0x20A9;
#ifndef CONFIG_ROM_KERNEL
/* The early chip we have is buggy, and writing the interrupt
vectors into low RAM may screw up, so for non-ROM kernels, we
only rely on the reset vector being downloaded, and copy the
rest of the interrupt vectors into place here. The specific bug
is that writing address N, where (N & 0x10) == 0x10, will _also_
write to address (N - 0x10). We avoid this (effectively) by
writing in 16-byte chunks backwards from the end. */
AS85EP1_IRAMM = 0x3; /* "write-mode" for the internal instruction memory */
src = (u32 *)(((u32)&_intv_copy_src_end - 1) & ~0xF);
dst = (u32 *)&_intv_copy_dst_start
+ (src - (u32 *)&_intv_copy_src_start);
do {
u32 t0 = src[0], t1 = src[1], t2 = src[2], t3 = src[3];
dst[0] = t0; dst[1] = t1; dst[2] = t2; dst[3] = t3;
dst -= 4;
src -= 4;
} while (src > (u32 *)&_intv_copy_src_start);
AS85EP1_IRAMM = 0x0; /* "read-mode" for the internal instruction memory */
#endif /* !CONFIG_ROM_KERNEL */
v850e_intc_disable_irqs ();
}
void __init mach_setup (char **cmdline)
{
AS85EP1_PORT_PMC (LEDS_PORT) = 0; /* Make the LEDs port an I/O port. */
AS85EP1_PORT_PM (LEDS_PORT) = 0; /* Make all the bits output pins. */
mach_tick = as85ep1_led_tick;
}
void __init mach_get_physical_ram (unsigned long *ram_start,
unsigned long *ram_len)
{
*ram_start = RAM_START;
*ram_len = RAM_END - RAM_START;
}
/* Convenience macros. */
#define SRAM_END (SRAM_ADDR + SRAM_SIZE)
#define SDRAM_END (SDRAM_ADDR + SDRAM_SIZE)
void __init mach_reserve_bootmem ()
{
if (SDRAM_ADDR < RAM_END && SDRAM_ADDR > RAM_START)
/* We can't use the space between SRAM and SDRAM, so
prevent the kernel from trying. */
reserve_bootmem(SRAM_END, SDRAM_ADDR - SRAM_END,
BOOTMEM_DEFAULT);
}
void mach_gettimeofday (struct timespec *tv)
{
tv->tv_sec = 0;
tv->tv_nsec = 0;
}
void __init mach_sched_init (struct irqaction *timer_action)
{
/* Start hardware timer. */
v850e_timer_d_configure (0, HZ);
/* Install timer interrupt handler. */
setup_irq (IRQ_INTCMD(0), timer_action);
}
static struct v850e_intc_irq_init irq_inits[] = {
{ "IRQ", 0, NUM_MACH_IRQS, 1, 7 },
{ "CCC", IRQ_INTCCC(0), IRQ_INTCCC_NUM, 1, 5 },
{ "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 },
{ "SRE", IRQ_INTSRE(0), IRQ_INTSRE_NUM, 3, 3 },
{ "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 3, 4 },
{ "ST", IRQ_INTST(0), IRQ_INTST_NUM, 3, 5 },
{ 0 }
};
#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
void __init mach_init_irqs (void)
{
v850e_intc_init_irq_types (irq_inits, hw_itypes);
}
void machine_restart (char *__unused)
{
#ifdef CONFIG_RESET_GUARD
disable_reset_guard ();
#endif
asm ("jmp r0"); /* Jump to the reset vector. */
}
void machine_halt (void)
{
#ifdef CONFIG_RESET_GUARD
disable_reset_guard ();
#endif
local_irq_disable (); /* Ignore all interrupts. */
AS85EP1_PORT_IO (LEDS_PORT) = 0xAA; /* Note that we halted. */
for (;;)
asm ("halt; nop; nop; nop; nop; nop");
}
void machine_power_off (void)
{
machine_halt ();
}
/* Called before configuring an on-chip UART. */
void as85ep1_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
{
/* Make the shared uart/port pins be uart pins. */
AS85EP1_PORT_PMC(3) |= (0x5 << chan);
/* The AS85EP1 connects some general-purpose I/O pins on the CPU to
the RTS/CTS lines of UART 1's serial connection. I/O pins P53
and P54 are RTS and CTS respectively. */
if (chan == 1) {
/* Put P53 & P54 in I/O port mode. */
AS85EP1_PORT_PMC(5) &= ~0x18;
/* Make P53 an output, and P54 an input. */
AS85EP1_PORT_PM(5) |= 0x10;
}
}
/* Minimum and maximum bounds for the moving upper LED boundary in the
clock tick display. */
#define MIN_MAX_POS 0
#define MAX_MAX_POS 7
/* There are MAX_MAX_POS^2 - MIN_MAX_POS^2 cycles in the animation, so if
we pick 6 and 0 as above, we get 49 cycles, which is when divided into
the standard 100 value for HZ, gives us an almost 1s total time. */
#define TICKS_PER_FRAME \
(HZ / (MAX_MAX_POS * MAX_MAX_POS - MIN_MAX_POS * MIN_MAX_POS))
static void as85ep1_led_tick ()
{
static unsigned counter = 0;
if (++counter == TICKS_PER_FRAME) {
static int pos = 0, max_pos = MAX_MAX_POS, dir = 1;
if (dir > 0 && pos == max_pos) {
dir = -1;
if (max_pos == MIN_MAX_POS)
max_pos = MAX_MAX_POS;
else
max_pos--;
} else {
if (dir < 0 && pos == 0)
dir = 1;
if (pos + dir <= max_pos) {
/* Each bit of port 0 has a LED. */
set_bit (pos, &AS85EP1_PORT_IO(LEDS_PORT));
pos += dir;
clear_bit (pos, &AS85EP1_PORT_IO(LEDS_PORT));
}
}
counter = 0;
}
}

49
arch/v850/kernel/as85ep1.ld
View file

@ -1,49 +0,0 @@
/* Linker script for the NEC AS85EP1 V850E evaluation board
(CONFIG_V850E_AS85EP1). */
MEMORY {
/* 1MB of internal instruction memory. */
iMEM0 : ORIGIN = 0, LENGTH = 0x00100000
/* 1MB of static RAM. */
SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
/* About 58MB of DRAM. This can actually be at one of two
positions, determined by jump JP3; we have to use the first
position because the second is partially out of processor
instruction addressing range (though in the second position
there's actually 64MB available). */
SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
}
SECTIONS {
.resetv : {
__intv_start = . ;
*(.intv.reset) /* Reset vector */
} > iMEM0
.sram : {
RAMK_KRAM_CONTENTS
/* We stick most of the interrupt vectors here; they'll be
copied into the proper location by the early init code (we
can't put them directly in the right place because of
hardware bugs). The vectors shouldn't need to be
relocated, so we don't have to use `> ... AT> ...' to
split the load/vm addresses (and we can't because of
problems with the loader). */
. = ALIGN (0x10) ;
__intv_copy_src_start = . ;
*(.intv.common) /* Vectors common to all v850e proc. */
*(.intv.mach) /* Machine-specific int. vectors. */
. = ALIGN (0x10) ;
__intv_copy_src_end = . ;
} > SRAM
/* Where we end up putting the vectors. */
__intv_copy_dst_start = 0x10 ;
__intv_copy_dst_end = __intv_copy_dst_start + (__intv_copy_src_end - __intv_copy_src_start) ;
__intv_end = __intv_copy_dst_end ;
.root : { ROOT_FS_CONTENTS } > SDRAM
}

58
arch/v850/kernel/asm-offsets.c
View file

@ -1,58 +0,0 @@
/*
* This program is used to generate definitions needed by
* assembly language modules.
*
* We use the technique used in the OSF Mach kernel code:
* generate asm statements containing #defines,
* compile this file to assembler, and then extract the
* #defines from the assembly-language output.
*/
#include <linux/stddef.h>
#include <linux/sched.h>
#include <linux/kernel_stat.h>
#include <linux/ptrace.h>
#include <linux/hardirq.h>
#include <linux/kbuild.h>
#include <asm/irq.h>
#include <asm/errno.h>
int main (void)
{
/* offsets into the task struct */
DEFINE (TASK_STATE, offsetof (struct task_struct, state));
DEFINE (TASK_FLAGS, offsetof (struct task_struct, flags));
DEFINE (TASK_PTRACE, offsetof (struct task_struct, ptrace));
DEFINE (TASK_BLOCKED, offsetof (struct task_struct, blocked));
DEFINE (TASK_THREAD, offsetof (struct task_struct, thread));
DEFINE (TASK_THREAD_INFO, offsetof (struct task_struct, stack));
DEFINE (TASK_MM, offsetof (struct task_struct, mm));
DEFINE (TASK_ACTIVE_MM, offsetof (struct task_struct, active_mm));
DEFINE (TASK_PID, offsetof (struct task_struct, pid));
/* offsets into the kernel_stat struct */
DEFINE (STAT_IRQ, offsetof (struct kernel_stat, irqs));
/* signal defines */
DEFINE (SIGSEGV, SIGSEGV);
DEFINE (SEGV_MAPERR, SEGV_MAPERR);
DEFINE (SIGTRAP, SIGTRAP);
DEFINE (SIGCHLD, SIGCHLD);
DEFINE (SIGILL, SIGILL);
DEFINE (TRAP_TRACE, TRAP_TRACE);
/* ptrace flag bits */
DEFINE (PT_PTRACED, PT_PTRACED);
DEFINE (PT_DTRACE, PT_DTRACE);
/* error values */
DEFINE (ENOSYS, ENOSYS);
/* clone flag bits */
DEFINE (CLONE_VFORK, CLONE_VFORK);
DEFINE (CLONE_VM, CLONE_VM);
return 0;
}

142
arch/v850/kernel/bug.c
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@ -1,142 +0,0 @@
/*
* arch/v850/kernel/bug.c -- Bug reporting functions
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/reboot.h>
#include <linux/sched.h>
#include <linux/module.h>
#include <asm/errno.h>
#include <asm/ptrace.h>
#include <asm/processor.h>
#include <asm/current.h>
/* We should use __builtin_return_address, but it doesn't work in gcc-2.90
(which is currently our standard compiler on the v850). */
#define ret_addr() ({ register u32 lp asm ("lp"); lp; })
#define stack_addr() ({ register u32 sp asm ("sp"); sp; })
void __bug ()
{
printk (KERN_CRIT "kernel BUG at PC 0x%x (SP ~0x%x)!\n",
ret_addr() - 4, /* - 4 for `jarl' */
stack_addr());
machine_halt ();
}
int bad_trap (int trap_num, struct pt_regs *regs)
{
printk (KERN_CRIT
"unimplemented trap %d called at 0x%08lx, pid %d!\n",
trap_num, regs->pc, current->pid);
return -ENOSYS;
}
#ifdef CONFIG_RESET_GUARD
void unexpected_reset (unsigned long ret_addr, unsigned long kmode,
struct task_struct *task, unsigned long sp)
{
printk (KERN_CRIT
"unexpected reset in %s mode, pid %d"
" (ret_addr = 0x%lx, sp = 0x%lx)\n",
kmode ? "kernel" : "user",
task ? task->pid : -1,
ret_addr, sp);
machine_halt ();
}
#endif /* CONFIG_RESET_GUARD */
struct spec_reg_name {
const char *name;
int gpr;
};
struct spec_reg_name spec_reg_names[] = {
{ "sp", GPR_SP },
{ "gp", GPR_GP },
{ "tp", GPR_TP },
{ "ep", GPR_EP },
{ "lp", GPR_LP },
{ 0, 0 }
};
void show_regs (struct pt_regs *regs)
{
int gpr_base, gpr_offs;
printk (" pc 0x%08lx psw 0x%08lx kernel_mode %d\n",
regs->pc, regs->psw, regs->kernel_mode);
printk (" ctpc 0x%08lx ctpsw 0x%08lx ctbp 0x%08lx\n",
regs->ctpc, regs->ctpsw, regs->ctbp);
for (gpr_base = 0; gpr_base < NUM_GPRS; gpr_base += 4) {
for (gpr_offs = 0; gpr_offs < 4; gpr_offs++) {
int gpr = gpr_base + gpr_offs;
long val = regs->gpr[gpr];
struct spec_reg_name *srn;
for (srn = spec_reg_names; srn->name; srn++)
if (srn->gpr == gpr)
break;
if (srn->name)
printk ("%7s 0x%08lx", srn->name, val);
else
printk (" r%02d 0x%08lx", gpr, val);
}
printk ("\n");
}
}
/*
* TASK is a pointer to the task whose backtrace we want to see (or NULL
* for current task), SP is the stack pointer of the first frame that
* should be shown in the back trace (or NULL if the entire call-chain of
* the task should be shown).
*/
void show_stack (struct task_struct *task, unsigned long *sp)
{
unsigned long addr, end;
if (sp)
addr = (unsigned long)sp;
else if (task)
addr = task_sp (task);
else
addr = stack_addr ();
addr = addr & ~3;
end = (addr + THREAD_SIZE - 1) & THREAD_MASK;
while (addr < end) {
printk ("%8lX: ", addr);
while (addr < end) {
printk (" %8lX", *(unsigned long *)addr);
addr += sizeof (unsigned long);
if (! (addr & 0xF))
break;
}
printk ("\n");
}
}
void dump_stack ()
{
show_stack (0, 0);
}
EXPORT_SYMBOL(dump_stack);

1121
arch/v850/kernel/entry.S
View file

File diff suppressed because it is too large Load diff

167
arch/v850/kernel/fpga85e2c.c
View file

@ -1,167 +0,0 @@
/*
* arch/v850/kernel/fpga85e2c.h -- Machine-dependent defs for
* FPGA implementation of V850E2/NA85E2C
*
* Copyright (C) 2002,03 NEC Electronics Corporation
* Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/bootmem.h>
#include <linux/irq.h>
#include <linux/bitops.h>
#include <asm/atomic.h>
#include <asm/page.h>
#include <asm/machdep.h>
#include "mach.h"
extern void memcons_setup (void);
#define REG_DUMP_ADDR 0x220000
extern struct irqaction reg_snap_action; /* fwd decl */
void __init mach_early_init (void)
{
int i;
const u32 *src;
register u32 *dst asm ("ep");
extern u32 _intv_end, _intv_load_start;
/* Set bus sizes: CS0 32-bit, CS1 16-bit, CS7 8-bit,
everything else 32-bit. */
V850E2_BSC = 0x2AA6;
for (i = 2; i <= 6; i++)
CSDEV(i) = 0; /* 32 bit */
/* Ensure that the simulator halts on a panic, instead of going
into an infinite loop inside the panic function. */
panic_timeout = -1;
/* Move the interrupt vectors into their real location. Note that
any relocations there are relative to the real location, so we
don't have to fix anything up. We use a loop instead of calling
memcpy to keep this a leaf function (to avoid a function
prologue being generated). */
dst = 0x10; /* &_intv_start + 0x10. */
src = &_intv_load_start;
do {
u32 t0 = src[0], t1 = src[1], t2 = src[2], t3 = src[3];
u32 t4 = src[4], t5 = src[5], t6 = src[6], t7 = src[7];
dst[0] = t0; dst[1] = t1; dst[2] = t2; dst[3] = t3;
dst[4] = t4; dst[5] = t5; dst[6] = t6; dst[7] = t7;
dst += 8;
src += 8;
} while (dst < &_intv_end);
}
void __init mach_setup (char **cmdline)
{
memcons_setup ();
/* Setup up NMI0 to copy the registers to a known memory location.
The FGPA board has a button that produces NMI0 when pressed, so
this allows us to push the button, and then look at memory to see
what's in the registers (there's no other way to easily do so).
We have to use `setup_irq' instead of `request_irq' because it's
still too early to do memory allocation. */
setup_irq (IRQ_NMI (0), &reg_snap_action);
}
void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len)
{
*ram_start = ERAM_ADDR;
*ram_len = ERAM_SIZE;
}
void __init mach_sched_init (struct irqaction *timer_action)
{
/* Setup up the timer interrupt. The FPGA peripheral control
registers _only_ work with single-bit writes (set1/clr1)! */
__clear_bit (RPU_GTMC_CE_BIT, &RPU_GTMC);
__clear_bit (RPU_GTMC_CLK_BIT, &RPU_GTMC);
__set_bit (RPU_GTMC_CE_BIT, &RPU_GTMC);
/* We use the first RPU interrupt, which occurs every 8.192ms. */
setup_irq (IRQ_RPU (0), timer_action);
}
void mach_gettimeofday (struct timespec *tv)
{
tv->tv_sec = 0;
tv->tv_nsec = 0;
}
void machine_halt (void) __attribute__ ((noreturn));
void machine_halt (void)
{
for (;;) {
DWC(0) = 0x7777;
DWC(1) = 0x7777;
ASC = 0xffff;
FLGREG(0) = 1; /* Halt immediately. */
asm ("di; halt; nop; nop; nop; nop; nop");
}
}
void machine_restart (char *__unused)
{
machine_halt ();
}
void machine_power_off (void)
{
machine_halt ();
}
/* Interrupts */
struct v850e_intc_irq_init irq_inits[] = {
{ "IRQ", 0, NUM_MACH_IRQS, 1, 7 },
{ "RPU", IRQ_RPU(0), IRQ_RPU_NUM, 1, 6 },
{ 0 }
};
#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
/* Initialize interrupts. */
void __init mach_init_irqs (void)
{
v850e_intc_init_irq_types (irq_inits, hw_itypes);
}
/* An interrupt handler that copies the registers to a known memory location,
for debugging purposes. */
static void make_reg_snap (int irq, void *dummy, struct pt_regs *regs)
{
(*(unsigned *)REG_DUMP_ADDR)++;
(*(struct pt_regs *)(REG_DUMP_ADDR + sizeof (unsigned))) = *regs;
}
static int reg_snap_dev_id;
static struct irqaction reg_snap_action = {
.handler = make_reg_snap,
.mask = CPU_MASK_NONE,
.name = "reg_snap",
.dev_id = &reg_snap_dev_id,
};

62
arch/v850/kernel/fpga85e2c.ld
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@ -1,62 +0,0 @@
/* Linker script for the FPGA implementation of the V850E2 NA85E2C cpu core
(CONFIG_V850E2_FPGA85E2C). */
MEMORY {
/* Reset vector. */
RESET : ORIGIN = 0, LENGTH = 0x10
/* Interrupt vectors. */
INTV : ORIGIN = 0x10, LENGTH = 0x470
/* The `window' in RAM were we're allowed to load stuff. */
RAM_LOW : ORIGIN = 0x480, LENGTH = 0x0005FB80
/* Some more ram above the window were we can put bss &c. */
RAM_HIGH : ORIGIN = 0x00060000, LENGTH = 0x000A0000
/* This is the area visible from the outside world (we can use
this only for uninitialized data). */
VISIBLE : ORIGIN = 0x00200000, LENGTH = 0x00060000
}
SECTIONS {
.reset : {
__kram_start = . ;
__intv_start = . ;
*(.intv.reset) /* Reset vector */
} > RESET
.ram_low : {
__r0_ram = . ; /* Must be near address 0. */
. = . + 32 ;
TEXT_CONTENTS
DATA_CONTENTS
ROOT_FS_CONTENTS
RAMK_INIT_CONTENTS_NO_END
INITRAMFS_CONTENTS
} > RAM_LOW
/* Where the interrupt vectors are initially loaded. */
__intv_load_start = . ;
.intv : {
*(.intv.common) /* Vectors common to all v850e proc. */
*(.intv.mach) /* Machine-specific int. vectors. */
__intv_end = . ;
} > INTV AT> RAM_LOW
.ram_high : {
/* This is here so that when we free init memory the
load-time copy of the interrupt vectors and any empty
space at the end of the `RAM_LOW' area is freed too. */
. = ALIGN (4096);
__init_end = . ;
BSS_CONTENTS
__kram_end = . ;
BOOTMAP_CONTENTS
} > RAM_HIGH
.visible : {
_memcons_output = . ;
. = . + 0x8000 ;
_memcons_output_end = . ;
} > VISIBLE
}

271
arch/v850/kernel/gbus_int.c
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@ -1,271 +0,0 @@
/*
* arch/v850/kernel/gbus_int.c -- Midas labs GBUS interrupt support
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <linux/signal.h>
#include <linux/kernel.h>
#include <asm/machdep.h>
/* The number of shared GINT interrupts. */
#define NUM_GINTS 4
/* For each GINT interrupt, how many GBUS interrupts are using it. */
static unsigned gint_num_active_irqs[NUM_GINTS] = { 0 };
/* A table of GINTn interrupts we actually use.
Note that we don't use GINT0 because all the boards we support treat it
specially. */
struct used_gint {
unsigned gint;
unsigned priority;
} used_gint[] = {
{ 1, GBUS_INT_PRIORITY_HIGH },
{ 3, GBUS_INT_PRIORITY_LOW }
};
#define NUM_USED_GINTS ARRAY_SIZE(used_gint)
/* A table of which GINT is used by each GBUS interrupts (they are
assigned based on priority). */
static unsigned char gbus_int_gint[IRQ_GBUS_INT_NUM];
/* Interrupt enabling/disabling. */
/* Enable interrupt handling for interrupt IRQ. */
void gbus_int_enable_irq (unsigned irq)
{
unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ];
GBUS_INT_ENABLE (GBUS_INT_IRQ_WORD(irq), gint)
|= GBUS_INT_IRQ_MASK (irq);
}
/* Disable interrupt handling for interrupt IRQ. Note that any
interrupts received while disabled will be delivered once the
interrupt is enabled again, unless they are explicitly cleared using
`gbus_int_clear_pending_irq'. */
void gbus_int_disable_irq (unsigned irq)
{
unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ];
GBUS_INT_ENABLE (GBUS_INT_IRQ_WORD(irq), gint)
&= ~GBUS_INT_IRQ_MASK (irq);
}
/* Return true if interrupt handling for interrupt IRQ is enabled. */
int gbus_int_irq_enabled (unsigned irq)
{
unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ];
return (GBUS_INT_ENABLE (GBUS_INT_IRQ_WORD(irq), gint)
& GBUS_INT_IRQ_MASK(irq));
}
/* Disable all GBUS irqs. */
void gbus_int_disable_irqs ()
{
unsigned w, n;
for (w = 0; w < GBUS_INT_NUM_WORDS; w++)
for (n = 0; n < IRQ_GINT_NUM; n++)
GBUS_INT_ENABLE (w, n) = 0;
}
/* Clear any pending interrupts for IRQ. */
void gbus_int_clear_pending_irq (unsigned irq)
{
GBUS_INT_CLEAR (GBUS_INT_IRQ_WORD(irq)) = GBUS_INT_IRQ_MASK (irq);
}
/* Return true if interrupt IRQ is pending (but disabled). */
int gbus_int_irq_pending (unsigned irq)
{
return (GBUS_INT_STATUS (GBUS_INT_IRQ_WORD(irq))
& GBUS_INT_IRQ_MASK(irq));
}
/* Delegating interrupts. */
/* Handle a shared GINT interrupt by passing to the appropriate GBUS
interrupt handler. */
static irqreturn_t gbus_int_handle_irq (int irq, void *dev_id,
struct pt_regs *regs)
{
unsigned w;
irqreturn_t rval = IRQ_NONE;
unsigned gint = irq - IRQ_GINT (0);
for (w = 0; w < GBUS_INT_NUM_WORDS; w++) {
unsigned status = GBUS_INT_STATUS (w);
unsigned enable = GBUS_INT_ENABLE (w, gint);
/* Only pay attention to enabled interrupts. */
status &= enable;
if (status) {
irq = IRQ_GBUS_INT (w * GBUS_INT_BITS_PER_WORD);
do {
/* There's an active interrupt in word
W, find out which one, and call its
handler. */
while (! (status & 0x1)) {
irq++;
status >>= 1;
}
status &= ~0x1;
/* Recursively call handle_irq to handle it. */
handle_irq (irq, regs);
rval = IRQ_HANDLED;
} while (status);
}
}
/* Toggle the `all enable' bit back and forth, which should cause
another edge transition if there are any other interrupts
still pending, and so result in another CPU interrupt. */
GBUS_INT_ENABLE (0, gint) &= ~0x1;
GBUS_INT_ENABLE (0, gint) |= 0x1;
return rval;
}
/* Initialize GBUS interrupt sources. */
static void irq_nop (unsigned irq) { }
static unsigned gbus_int_startup_irq (unsigned irq)
{
unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ];
if (gint_num_active_irqs[gint] == 0) {
/* First enable the CPU interrupt. */
int rval =
request_irq (IRQ_GINT(gint), gbus_int_handle_irq,
IRQF_DISABLED,
"gbus_int_handler",
&gint_num_active_irqs[gint]);
if (rval != 0)
return rval;
}
gint_num_active_irqs[gint]++;
gbus_int_clear_pending_irq (irq);
gbus_int_enable_irq (irq);
return 0;
}
static void gbus_int_shutdown_irq (unsigned irq)
{
unsigned gint = gbus_int_gint[irq - GBUS_INT_BASE_IRQ];
gbus_int_disable_irq (irq);
if (--gint_num_active_irqs[gint] == 0)
/* Disable the CPU interrupt. */
free_irq (IRQ_GINT(gint), &gint_num_active_irqs[gint]);
}
/* Initialize HW_IRQ_TYPES for INTC-controlled irqs described in array
INITS (which is terminated by an entry with the name field == 0). */
void __init gbus_int_init_irq_types (struct gbus_int_irq_init *inits,
struct hw_interrupt_type *hw_irq_types)
{
struct gbus_int_irq_init *init;
for (init = inits; init->name; init++) {
unsigned i;
struct hw_interrupt_type *hwit = hw_irq_types++;
hwit->typename = init->name;
hwit->startup = gbus_int_startup_irq;
hwit->shutdown = gbus_int_shutdown_irq;
hwit->enable = gbus_int_enable_irq;
hwit->disable = gbus_int_disable_irq;
hwit->ack = irq_nop;
hwit->end = irq_nop;
/* Initialize kernel IRQ infrastructure for this interrupt. */
init_irq_handlers(init->base, init->num, init->interval, hwit);
/* Set the interrupt priorities. */
for (i = 0; i < init->num; i++) {
unsigned j;
for (j = 0; j < NUM_USED_GINTS; j++)
if (used_gint[j].priority > init->priority)
break;
/* Wherever we stopped looking is one past the
GINT we want. */
gbus_int_gint[init->base + i * init->interval
- GBUS_INT_BASE_IRQ]
= used_gint[j > 0 ? j - 1 : 0].gint;
}
}
}
/* Initialize IRQS. */
/* Chip interrupts (GINTn) shared among GBUS interrupts. */
static struct hw_interrupt_type gint_hw_itypes[NUM_USED_GINTS];
/* GBUS interrupts themselves. */
struct gbus_int_irq_init gbus_irq_inits[] __initdata = {
/* First set defaults. */
{ "GBUS_INT", IRQ_GBUS_INT(0), IRQ_GBUS_INT_NUM, 1, 6},
{ 0 }
};
#define NUM_GBUS_IRQ_INITS (ARRAY_SIZE(gbus_irq_inits) - 1)
static struct hw_interrupt_type gbus_hw_itypes[NUM_GBUS_IRQ_INITS];
/* Initialize GBUS interrupts. */
void __init gbus_int_init_irqs (void)
{
unsigned i;
/* First initialize the shared gint interrupts. */
for (i = 0; i < NUM_USED_GINTS; i++) {
unsigned gint = used_gint[i].gint;
struct v850e_intc_irq_init gint_irq_init[2];
/* We initialize one GINT interrupt at a time. */
gint_irq_init[0].name = "GINT";
gint_irq_init[0].base = IRQ_GINT (gint);
gint_irq_init[0].num = 1;
gint_irq_init[0].interval = 1;
gint_irq_init[0].priority = used_gint[i].priority;
gint_irq_init[1].name = 0; /* Terminate the vector. */
v850e_intc_init_irq_types (gint_irq_init, gint_hw_itypes);
}
/* Then the GBUS interrupts. */
gbus_int_disable_irqs ();
gbus_int_init_irq_types (gbus_irq_inits, gbus_hw_itypes);
/* Turn on the `all enable' bits, which are ANDed with
individual interrupt enable bits; we only want to bother with
the latter. They are the first bit in the first word of each
interrupt-enable area. */
for (i = 0; i < NUM_USED_GINTS; i++)
GBUS_INT_ENABLE (0, used_gint[i].gint) = 0x1;
}

128
arch/v850/kernel/head.S
View file

@ -1,128 +0,0 @@
/*
* arch/v850/kernel/head.S -- Lowest-level startup code
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <asm/clinkage.h>
#include <asm/current.h>
#include <asm/entry.h>
#include <asm/thread_info.h>
#include <asm/irq.h>
/* Make a slightly more convenient alias for C_SYMBOL_NAME. */
#define CSYM C_SYMBOL_NAME
.text
// Define `mach_early_init' as a weak symbol
.global CSYM(mach_early_init)
.weak CSYM(mach_early_init)
C_ENTRY(start):
// Make sure interrupts are turned off, just in case
di
#ifdef CONFIG_RESET_GUARD
// See if we got here via an unexpected reset
ld.w RESET_GUARD, r19 // Check current value of reset guard
mov RESET_GUARD_ACTIVE, r20
cmp r19, r20
bne 1f // Guard was not active
// If we get here, the reset guard was active. Load up some
// interesting values as arguments, and jump to the handler.
st.w r0, RESET_GUARD // Allow further resets to succeed
mov lp, r6 // Arg 0: return address
ld.b KM, r7 // Arg 1: kernel mode
mov sp, r9 // Arg 3: stack pointer
ld.w KSP, r19 // maybe switch to kernel stack
cmp r7, r0 // see if already in kernel mode
cmov z, r19, sp, sp // and switch to kernel stack if not
GET_CURRENT_TASK(r8) // Arg 2: task pointer
jr CSYM(unexpected_reset)
1: st.w r20, RESET_GUARD // Turn on reset guard
#endif /* CONFIG_RESET_GUARD */
// Setup a temporary stack for doing pre-initialization function calls.
//
// We can't use the initial kernel stack, because (1) it may be
// located in memory we're not allowed to touch, and (2) since
// it's in the data segment, calling memcpy to initialize that
// area from ROM will overwrite memcpy's return address.
mov hilo(CSYM(_init_stack_end) - 4), sp
// See if there's a platform-specific early-initialization routine
// defined; it's a weak symbol, so it will have an address of zero if
// there's not.
mov hilo(CSYM(mach_early_init)), r6
cmp r6, r0
bz 3f
// There is one, so call it. If this function is written in C, it
// should be very careful -- the stack pointer is valid, but very
// little else is (e.g., bss is not zeroed yet, and initialized data
// hasn't been).
jarl 2f, lp // first figure out return address
2: add 3f - ., lp
jmp [r6] // do call
3:
#ifdef CONFIG_ROM_KERNEL
// Copy the data area from ROM to RAM
mov hilo(CSYM(_rom_copy_dst_start)), r6
mov hilo(CSYM(_rom_copy_src_start)), r7
mov hilo(CSYM(_rom_copy_dst_end)), r8
sub r6, r8
jarl CSYM(memcpy), lp
#endif
// Load the initial thread's stack, and current task pointer (in r16)
mov hilo(CSYM(init_thread_union)), r19
movea THREAD_SIZE, r19, sp
ld.w TI_TASK[r19], CURRENT_TASK
#ifdef CONFIG_TIME_BOOTUP
/* This stuff must come after mach_early_init, because interrupts may
not work until after its been called. */
jarl CSYM(highres_timer_reset), lp
jarl CSYM(highres_timer_start), lp
#endif
// Kernel stack pointer save location
st.w sp, KSP
// Assert that we're in `kernel mode'
mov 1, r19
st.w r19, KM
#ifdef CONFIG_ZERO_BSS
// Zero bss area, since we can't rely upon any loader to do so
mov hilo(CSYM(_sbss)), r6
mov r0, r7
mov hilo(CSYM(_ebss)), r8
sub r6, r8
jarl CSYM(memset), lp
#endif
// What happens if the main kernel function returns (it shouldn't)
mov hilo(CSYM(machine_halt)), lp
// Start the linux kernel. We use an indirect jump to get extra
// range, because on some platforms this initial startup code
// (and the associated platform-specific code in mach_early_init)
// are located far away from the main kernel, e.g. so that they
// can initialize RAM first and copy the kernel or something.
mov hilo(CSYM(start_kernel)), r12
jmp [r12]
C_END(start)

132
arch/v850/kernel/highres_timer.c
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@ -1,132 +0,0 @@
/*
* arch/v850/kernel/highres_timer.c -- High resolution timing routines
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <asm/system.h>
#include <asm/v850e_timer_d.h>
#include <asm/highres_timer.h>
#define HIGHRES_TIMER_USEC_SHIFT 12
/* Pre-calculated constant used for converting ticks to real time
units. We initialize it to prevent it being put into BSS. */
static u32 highres_timer_usec_prescale = 1;
void highres_timer_slow_tick_irq (void) __attribute__ ((noreturn));
void highres_timer_slow_tick_irq (void)
{
/* This is an interrupt handler, so it must be very careful to
not to trash any registers. At this point, the stack-pointer
(r3) has been saved in the chip ram location ENTRY_SP by the
interrupt vector, so we can use it as a scratch register; we
must also restore it before returning. */
asm ("ld.w %0[r0], sp;"
"add 1, sp;"
"st.w sp, %0[r0];"
"ld.w %1[r0], sp;" /* restore pre-irq stack-pointer */
"reti"
::
"i" (HIGHRES_TIMER_SLOW_TICKS_ADDR),
"i" (ENTRY_SP_ADDR)
: "memory");
}
void highres_timer_reset (void)
{
V850E_TIMER_D_TMD (HIGHRES_TIMER_TIMER_D_UNIT) = 0;
HIGHRES_TIMER_SLOW_TICKS = 0;
}
void highres_timer_start (void)
{
u32 fast_tick_rate;
/* Start hardware timer. */
v850e_timer_d_configure (HIGHRES_TIMER_TIMER_D_UNIT,
HIGHRES_TIMER_SLOW_TICK_RATE);
fast_tick_rate =
(V850E_TIMER_D_BASE_FREQ
>> V850E_TIMER_D_DIVLOG2 (HIGHRES_TIMER_TIMER_D_UNIT));
/* The obvious way of calculating microseconds from fast ticks
is to do:
usec = fast_ticks * 10^6 / fast_tick_rate
However, divisions are much slower than multiplications, and
the above calculation can overflow, so we do this instead:
usec = fast_ticks * (10^6 * 2^12 / fast_tick_rate) / 2^12
since we can pre-calculate (10^6 * (2^12 / fast_tick_rate))
and use a shift for dividing by 2^12, this avoids division,
and is almost as accurate (it differs by about 2 microseconds
at the extreme value of the fast-tick counter's ranger). */
highres_timer_usec_prescale = ((1000000 << HIGHRES_TIMER_USEC_SHIFT)
/ fast_tick_rate);
/* Enable the interrupt (which is hardwired to this use), and
give it the highest priority. */
V850E_INTC_IC (IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT)) = 0;
}
void highres_timer_stop (void)
{
/* Stop the timer. */
V850E_TIMER_D_TMCD (HIGHRES_TIMER_TIMER_D_UNIT) =
V850E_TIMER_D_TMCD_CAE;
/* Disable its interrupt, just in case. */
v850e_intc_disable_irq (IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT));
}
inline void highres_timer_read_ticks (u32 *slow_ticks, u32 *fast_ticks)
{
int flags;
u32 fast_ticks_1, fast_ticks_2, _slow_ticks;
local_irq_save (flags);
fast_ticks_1 = V850E_TIMER_D_TMD (HIGHRES_TIMER_TIMER_D_UNIT);
_slow_ticks = HIGHRES_TIMER_SLOW_TICKS;
fast_ticks_2 = V850E_TIMER_D_TMD (HIGHRES_TIMER_TIMER_D_UNIT);
local_irq_restore (flags);
if (fast_ticks_2 < fast_ticks_1)
_slow_ticks++;
*slow_ticks = _slow_ticks;
*fast_ticks = fast_ticks_2;
}
inline void highres_timer_ticks_to_timeval (u32 slow_ticks, u32 fast_ticks,
struct timeval *tv)
{
unsigned long sec, sec_rem, usec;
usec = ((fast_ticks * highres_timer_usec_prescale)
>> HIGHRES_TIMER_USEC_SHIFT);
sec = slow_ticks / HIGHRES_TIMER_SLOW_TICK_RATE;
sec_rem = slow_ticks % HIGHRES_TIMER_SLOW_TICK_RATE;
usec += sec_rem * (1000000 / HIGHRES_TIMER_SLOW_TICK_RATE);
tv->tv_sec = sec;
tv->tv_usec = usec;
}
void highres_timer_read (struct timeval *tv)
{
u32 fast_ticks, slow_ticks;
highres_timer_read_ticks (&slow_ticks, &fast_ticks);
highres_timer_ticks_to_timeval (slow_ticks, fast_ticks, tv);
}

48
arch/v850/kernel/init_task.c
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@ -1,48 +0,0 @@
/*
* arch/v850/kernel/init_task.c -- Initial task/thread structures
*
* Copyright (C) 2002,03 NEC Electronics Corporation
* Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*/
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/init.h>
#include <linux/init_task.h>
#include <linux/fs.h>
#include <linux/mqueue.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
static struct fs_struct init_fs = INIT_FS;
static struct signal_struct init_signals = INIT_SIGNALS (init_signals);
static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
struct mm_struct init_mm = INIT_MM (init_mm);
EXPORT_SYMBOL(init_mm);
/*
* Initial task structure.
*
* All other task structs will be allocated on slabs in fork.c
*/
struct task_struct init_task = INIT_TASK (init_task);
EXPORT_SYMBOL(init_task);
/*
* Initial thread structure.
*
* We need to make sure that this is 8192-byte aligned due to the
* way process stacks are handled. This is done by having a special
* "init_task" linker map entry.
*/
union thread_union init_thread_union
__attribute__((__section__(".data.init_task"))) =
{ INIT_THREAD_INFO(init_task) };

87
arch/v850/kernel/intv.S
View file

@ -1,87 +0,0 @@
/*
* arch/v850/kernel/intv.S -- Interrupt vectors
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <asm/clinkage.h>
#include <asm/irq.h>
#include <asm/machdep.h>
#include <asm/entry.h>
#ifdef CONFIG_V850E_HIGHRES_TIMER
#include <asm/highres_timer.h>
#endif
/* Jump to an interrupt/trap handler. These handlers (defined in entry.S)
expect the stack-pointer to be saved in ENTRY_SP, so we use sp to do an
indirect jump (which avoids problems when the handler is more than a signed
22-bit offset away). */
#define JUMP_TO_HANDLER(name, sp_save_loc) \
st.w sp, sp_save_loc; \
mov hilo(name), sp; \
jmp [sp]
/* Reset vector. */
.section .intv.reset, "ax"
.org 0x0
mov hilo(C_SYMBOL_NAME(start)), r1;
jmp [r1]
/* Generic interrupt vectors. */
.section .intv.common, "ax"
.balign 0x10
JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x10 - NMI0
.balign 0x10
JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x20 - NMI1
.balign 0x10
JUMP_TO_HANDLER (nmi, NMI_ENTRY_SP) // 0x30 - NMI2
.balign 0x10
JUMP_TO_HANDLER (trap, ENTRY_SP) // 0x40 - TRAP0n
.balign 0x10
JUMP_TO_HANDLER (trap, ENTRY_SP) // 0x50 - TRAP1n
.balign 0x10
JUMP_TO_HANDLER (dbtrap, ENTRY_SP) // 0x60 - Illegal op / DBTRAP insn
/* Hardware interrupt vectors. */
.section .intv.mach, "ax"
.org 0x0
#if defined (CONFIG_V850E_HIGHRES_TIMER) && defined (IRQ_INTCMD)
/* Interrupts before the highres timer interrupt. */
.rept IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT)
.balign 0x10
JUMP_TO_HANDLER (irq, ENTRY_SP)
.endr
/* The highres timer interrupt. */
.balign 0x10
JUMP_TO_HANDLER (C_SYMBOL_NAME (highres_timer_slow_tick_irq), ENTRY_SP)
/* Interrupts after the highres timer interrupt. */
.rept NUM_CPU_IRQS - IRQ_INTCMD (HIGHRES_TIMER_TIMER_D_UNIT) - 1
.balign 0x10
JUMP_TO_HANDLER (irq, ENTRY_SP)
.endr
#else /* No highres timer */
.rept NUM_CPU_IRQS
.balign 0x10
JUMP_TO_HANDLER (irq, ENTRY_SP)
.endr
#endif /* Highres timer */

123
arch/v850/kernel/irq.c
View file

@ -1,123 +0,0 @@
/*
* arch/v850/kernel/irq.c -- High-level interrupt handling
*
* Copyright (C) 2001,02,03,04,05 NEC Electronics Corporation
* Copyright (C) 2001,02,03,04,05 Miles Bader <miles@gnu.org>
* Copyright (C) 1994-2000 Ralf Baechle
* Copyright (C) 1992 Linus Torvalds
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* This file was was derived from the mips version, arch/mips/kernel/irq.c
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/irq.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/random.h>
#include <linux/seq_file.h>
#include <asm/system.h>
/*
* 'what should we do if we get a hw irq event on an illegal vector'.
* each architecture has to answer this themselves, it doesn't deserve
* a generic callback i think.
*/
void ack_bad_irq(unsigned int irq)
{
printk("received IRQ %d with unknown interrupt type\n", irq);
}
volatile unsigned long irq_err_count, spurious_count;
/*
* Generic, controller-independent functions:
*/
int show_interrupts(struct seq_file *p, void *v)
{
int irq = *(loff_t *) v;
if (irq == 0) {
int cpu;
seq_puts(p, " ");
for (cpu=0; cpu < 1 /*smp_num_cpus*/; cpu++)
seq_printf(p, "CPU%d ", cpu);
seq_putc(p, '\n');
}
if (irq < NR_IRQS) {
unsigned long flags;
struct irqaction *action;
spin_lock_irqsave(&irq_desc[irq].lock, flags);
action = irq_desc[irq].action;
if (action) {
int j;
int count = 0;
int num = -1;
const char *type_name = irq_desc[irq].chip->typename;
for (j = 0; j < NR_IRQS; j++)
if (irq_desc[j].chip->typename == type_name){
if (irq == j)
num = count;
count++;
}
seq_printf(p, "%3d: ",irq);
seq_printf(p, "%10u ", kstat_irqs(irq));
if (count > 1) {
int prec = (num >= 100 ? 3 : num >= 10 ? 2 : 1);
seq_printf(p, " %*s%d", 14 - prec,
type_name, num);
} else
seq_printf(p, " %14s", type_name);
seq_printf(p, " %s", action->name);
for (action=action->next; action; action = action->next)
seq_printf(p, ", %s", action->name);
seq_putc(p, '\n');
}
spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
} else if (irq == NR_IRQS)
seq_printf(p, "ERR: %10lu\n", irq_err_count);
return 0;
}
/* Handle interrupt IRQ. REGS are the registers at the time of ther
interrupt. */
unsigned int handle_irq (int irq, struct pt_regs *regs)
{
irq_enter();
__do_IRQ(irq, regs);
irq_exit();
return 1;
}
/* Initialize irq handling for IRQs.
BASE_IRQ, BASE_IRQ+INTERVAL, ..., BASE_IRQ+NUM*INTERVAL
to IRQ_TYPE. An IRQ_TYPE of 0 means to use a generic interrupt type. */
void __init
init_irq_handlers (int base_irq, int num, int interval,
struct hw_interrupt_type *irq_type)
{
while (num-- > 0) {
irq_desc[base_irq].status = IRQ_DISABLED;
irq_desc[base_irq].action = NULL;
irq_desc[base_irq].depth = 1;
irq_desc[base_irq].chip = irq_type;
base_irq += interval;
}
}

69
arch/v850/kernel/ma.c
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@ -1,69 +0,0 @@
/*
* arch/v850/kernel/ma.c -- V850E/MA series of cpu chips
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/bootmem.h>
#include <linux/irq.h>
#include <asm/atomic.h>
#include <asm/page.h>
#include <asm/machdep.h>
#include <asm/v850e_timer_d.h>
#include "mach.h"
void __init mach_sched_init (struct irqaction *timer_action)
{
/* Start hardware timer. */
v850e_timer_d_configure (0, HZ);
/* Install timer interrupt handler. */
setup_irq (IRQ_INTCMD(0), timer_action);
}
static struct v850e_intc_irq_init irq_inits[] = {
{ "IRQ", 0, NUM_MACH_IRQS, 1, 7 },
{ "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 },
{ "DMA", IRQ_INTDMA(0), IRQ_INTDMA_NUM, 1, 2 },
{ "CSI", IRQ_INTCSI(0), IRQ_INTCSI_NUM, 4, 4 },
{ "SER", IRQ_INTSER(0), IRQ_INTSER_NUM, 4, 3 },
{ "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 4, 4 },
{ "ST", IRQ_INTST(0), IRQ_INTST_NUM, 4, 5 },
{ 0 }
};
#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
/* Initialize MA chip interrupts. */
void __init ma_init_irqs (void)
{
v850e_intc_init_irq_types (irq_inits, hw_itypes);
}
/* Called before configuring an on-chip UART. */
void ma_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
{
/* We only know about the first two UART channels (though
specific chips may have more). */
if (chan < 2) {
unsigned bits = 0x3 << (chan * 3);
/* Specify that the relevant pins on the chip should do
serial I/O, not direct I/O. */
MA_PORT4_PMC |= bits;
/* Specify that we're using the UART, not the CSI device. */
MA_PORT4_PFC |= bits;
}
}

17
arch/v850/kernel/mach.c
View file

@ -1,17 +0,0 @@
/*
* arch/v850/kernel/mach.c -- Defaults for some things defined by "mach.h"
*
* Copyright (C) 2001 NEC Corporation
* Copyright (C) 2001 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include "mach.h"
/* Called with each timer tick, if non-zero. */
void (*mach_tick)(void) = 0;

56
arch/v850/kernel/mach.h
View file

@ -1,56 +0,0 @@
/*
* arch/v850/kernel/mach.h -- Machine-dependent functions used by v850 port
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_MACH_H__
#define __V850_MACH_H__
#include <linux/kernel.h>
#include <linux/time.h>
#include <linux/spinlock.h>
#include <linux/interrupt.h>
#include <linux/fs.h>
#include <linux/seq_file.h>
#include <asm/ptrace.h>
#include <asm/entry.h>
#include <asm/clinkage.h>
void mach_setup (char **cmdline);
void mach_gettimeofday (struct timespec *tv);
void mach_sched_init (struct irqaction *timer_action);
void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len);
void mach_init_irqs (void);
/* If defined, is called very early in the kernel initialization. The
stack pointer is valid, but very little has been initialized (e.g.,
bss is not zeroed yet) when this is called, so care must taken. */
void mach_early_init (void);
/* If defined, called after the bootmem allocator has been initialized,
to allow the platform-dependent code to reserve any areas of RAM that
the kernel shouldn't touch. */
void mach_reserve_bootmem (void) __attribute__ ((__weak__));
/* Called with each timer tick, if non-zero. */
extern void (*mach_tick) (void);
/* The following establishes aliases for various mach_ functions to the
name by which the rest of the kernel calls them. These statements
should only have an effect in the file that defines the actual functions. */
#define MACH_ALIAS(to, from) \
asm (".global " macrology_stringify (C_SYMBOL_NAME (to)) ";" \
macrology_stringify (C_SYMBOL_NAME (to)) \
" = " macrology_stringify (C_SYMBOL_NAME (from)))
/* e.g.: MACH_ALIAS (kernel_name, arch_spec_name); */
#endif /* __V850_MACH_H__ */

73
arch/v850/kernel/me2.c
View file

@ -1,73 +0,0 @@
/*
* arch/v850/kernel/me2.c -- V850E/ME2 chip-specific support
*
* Copyright (C) 2003 NEC Corporation
* Copyright (C) 2003 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/bootmem.h>
#include <linux/irq.h>
#include <asm/atomic.h>
#include <asm/page.h>
#include <asm/machdep.h>
#include <asm/v850e_timer_d.h>
#include "mach.h"
void __init mach_sched_init (struct irqaction *timer_action)
{
/* Start hardware timer. */
v850e_timer_d_configure (0, HZ);
/* Install timer interrupt handler. */
setup_irq (IRQ_INTCMD(0), timer_action);
}
static struct v850e_intc_irq_init irq_inits[] = {
{ "IRQ", 0, NUM_CPU_IRQS, 1, 7 },
{ "INTP", IRQ_INTP(0), IRQ_INTP_NUM, 1, 5 },
{ "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 3 },
{ "UBTIRE", IRQ_INTUBTIRE(0), IRQ_INTUBTIRE_NUM, 5, 4 },
{ "UBTIR", IRQ_INTUBTIR(0), IRQ_INTUBTIR_NUM, 5, 4 },
{ "UBTIT", IRQ_INTUBTIT(0), IRQ_INTUBTIT_NUM, 5, 4 },
{ "UBTIF", IRQ_INTUBTIF(0), IRQ_INTUBTIF_NUM, 5, 4 },
{ "UBTITO", IRQ_INTUBTITO(0), IRQ_INTUBTITO_NUM, 5, 4 },
{ 0 }
};
#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
/* Initialize V850E/ME2 chip interrupts. */
void __init me2_init_irqs (void)
{
v850e_intc_init_irq_types (irq_inits, hw_itypes);
}
/* Called before configuring an on-chip UART. */
void me2_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
{
if (chan == 0) {
/* Specify that the relevant pins on the chip should do
serial I/O, not direct I/O. */
ME2_PORT1_PMC |= 0xC;
/* Specify that we're using the UART, not the CSI device. */
ME2_PORT1_PFC |= 0xC;
} else if (chan == 1) {
/* Specify that the relevant pins on the chip should do
serial I/O, not direct I/O. */
ME2_PORT2_PMC |= 0x6;
/* Specify that we're using the UART, not the CSI device. */
ME2_PORT2_PFC |= 0x6;
}
}

135
arch/v850/kernel/memcons.c
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@ -1,135 +0,0 @@
/*
* arch/v850/kernel/memcons.c -- Console I/O to a memory buffer
*
* Copyright (C) 2001,02 NEC Corporation
* Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/console.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/init.h>
/* If this device is enabled, the linker map should define start and
end points for its buffer. */
extern char memcons_output[], memcons_output_end;
/* Current offset into the buffer. */
static unsigned long memcons_offs = 0;
/* Spinlock protecting memcons_offs. */
static DEFINE_SPINLOCK(memcons_lock);
static size_t write (const char *buf, size_t len)
{
unsigned long flags;
char *point;
spin_lock_irqsave (memcons_lock, flags);
point = memcons_output + memcons_offs;
if (point + len >= &memcons_output_end) {
len = &memcons_output_end - point;
memcons_offs = 0;
} else
memcons_offs += len;
spin_unlock_irqrestore (memcons_lock, flags);
memcpy (point, buf, len);
return len;
}
/* Low-level console. */
static void memcons_write (struct console *co, const char *buf, unsigned len)
{
while (len > 0)
len -= write (buf, len);
}
static struct tty_driver *tty_driver;
static struct tty_driver *memcons_device (struct console *co, int *index)
{
*index = co->index;
return tty_driver;
}
static struct console memcons =
{
.name = "memcons",
.write = memcons_write,
.device = memcons_device,
.flags = CON_PRINTBUFFER,
.index = -1,
};
void memcons_setup (void)
{
register_console (&memcons);
printk (KERN_INFO "Console: static memory buffer (memcons)\n");
}
/* Higher level TTY interface. */
int memcons_tty_open (struct tty_struct *tty, struct file *filp)
{
return 0;
}
int memcons_tty_write (struct tty_struct *tty, const unsigned char *buf, int len)
{
return write (buf, len);
}
int memcons_tty_write_room (struct tty_struct *tty)
{
return &memcons_output_end - (memcons_output + memcons_offs);
}
int memcons_tty_chars_in_buffer (struct tty_struct *tty)
{
/* We have no buffer. */
return 0;
}
static const struct tty_operations ops = {
.open = memcons_tty_open,
.write = memcons_tty_write,
.write_room = memcons_tty_write_room,
.chars_in_buffer = memcons_tty_chars_in_buffer,
};
int __init memcons_tty_init (void)
{
int err;
struct tty_driver *driver = alloc_tty_driver(1);
if (!driver)
return -ENOMEM;
driver->name = "memcons";
driver->major = TTY_MAJOR;
driver->minor_start = 64;
driver->type = TTY_DRIVER_TYPE_SYSCONS;
driver->init_termios = tty_std_termios;
tty_set_operations(driver, &ops);
err = tty_register_driver(driver);
if (err) {
put_tty_driver(driver);
return err;
}
tty_driver = driver;
return 0;
}
__initcall (memcons_tty_init);

237
arch/v850/kernel/module.c
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@ -1,237 +0,0 @@
/*
* arch/v850/kernel/module.c -- Architecture-specific module functions
*
* Copyright (C) 2002,03 NEC Electronics Corporation
* Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
* Copyright (C) 2001,03 Rusty Russell
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*
* Derived in part from arch/ppc/kernel/module.c
*/
#include <linux/kernel.h>
#include <linux/vmalloc.h>
#include <linux/moduleloader.h>
#include <linux/elf.h>
#if 0
#define DEBUGP printk
#else
#define DEBUGP(fmt , ...)
#endif
void *module_alloc (unsigned long size)
{
return size == 0 ? 0 : vmalloc (size);
}
void module_free (struct module *mod, void *module_region)
{
vfree (module_region);
/* FIXME: If module_region == mod->init_region, trim exception
table entries. */
}
int module_finalize (const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs,
struct module *mod)
{
return 0;
}
/* Count how many different relocations (different symbol, different
addend) */
static unsigned int count_relocs(const Elf32_Rela *rela, unsigned int num)
{
unsigned int i, j, ret = 0;
/* Sure, this is order(n^2), but it's usually short, and not
time critical */
for (i = 0; i < num; i++) {
for (j = 0; j < i; j++) {
/* If this addend appeared before, it's
already been counted */
if (ELF32_R_SYM(rela[i].r_info)
== ELF32_R_SYM(rela[j].r_info)
&& rela[i].r_addend == rela[j].r_addend)
break;
}
if (j == i) ret++;
}
return ret;
}
/* Get the potential trampolines size required of the init and
non-init sections */
static unsigned long get_plt_size(const Elf32_Ehdr *hdr,
const Elf32_Shdr *sechdrs,
const char *secstrings,
int is_init)
{
unsigned long ret = 0;
unsigned i;
/* Everything marked ALLOC (this includes the exported
symbols) */
for (i = 1; i < hdr->e_shnum; i++) {
/* If it's called *.init*, and we're not init, we're
not interested */
if ((strstr(secstrings + sechdrs[i].sh_name, ".init") != 0)
!= is_init)
continue;
if (sechdrs[i].sh_type == SHT_RELA) {
DEBUGP("Found relocations in section %u\n", i);
DEBUGP("Ptr: %p. Number: %u\n",
(void *)hdr + sechdrs[i].sh_offset,
sechdrs[i].sh_size / sizeof(Elf32_Rela));
ret += count_relocs((void *)hdr
+ sechdrs[i].sh_offset,
sechdrs[i].sh_size
/ sizeof(Elf32_Rela))
* sizeof(struct v850_plt_entry);
}
}
return ret;
}
int module_frob_arch_sections(Elf32_Ehdr *hdr,
Elf32_Shdr *sechdrs,
char *secstrings,
struct module *me)
{
unsigned int i;
/* Find .plt and .pltinit sections */
for (i = 0; i < hdr->e_shnum; i++) {
if (strcmp(secstrings + sechdrs[i].sh_name, ".init.plt") == 0)
me->arch.init_plt_section = i;
else if (strcmp(secstrings + sechdrs[i].sh_name, ".plt") == 0)
me->arch.core_plt_section = i;
}
if (!me->arch.core_plt_section || !me->arch.init_plt_section) {
printk("Module doesn't contain .plt or .plt.init sections.\n");
return -ENOEXEC;
}
/* Override their sizes */
sechdrs[me->arch.core_plt_section].sh_size
= get_plt_size(hdr, sechdrs, secstrings, 0);
sechdrs[me->arch.init_plt_section].sh_size
= get_plt_size(hdr, sechdrs, secstrings, 1);
return 0;
}
int apply_relocate (Elf32_Shdr *sechdrs, const char *strtab,
unsigned int symindex, unsigned int relsec,
struct module *mod)
{
printk ("Barf\n");
return -ENOEXEC;
}
/* Set up a trampoline in the PLT to bounce us to the distant function */
static uint32_t do_plt_call (void *location, Elf32_Addr val,
Elf32_Shdr *sechdrs, struct module *mod)
{
struct v850_plt_entry *entry;
/* Instructions used to do the indirect jump. */
uint32_t tramp[2];
/* We have to trash a register, so we assume that any control
transfer more than 21-bits away must be a function call
(so we can use a call-clobbered register). */
tramp[0] = 0x0621 + ((val & 0xffff) << 16); /* mov sym, r1 ... */
tramp[1] = ((val >> 16) & 0xffff) + 0x610000; /* ...; jmp r1 */
/* Init, or core PLT? */
if (location >= mod->module_core
&& location < mod->module_core + mod->core_size)
entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr;
else
entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr;
/* Find this entry, or if that fails, the next avail. entry */
while (entry->tramp[0])
if (entry->tramp[0] == tramp[0] && entry->tramp[1] == tramp[1])
return (uint32_t)entry;
else
entry++;
entry->tramp[0] = tramp[0];
entry->tramp[1] = tramp[1];
return (uint32_t)entry;
}
int apply_relocate_add (Elf32_Shdr *sechdrs, const char *strtab,
unsigned int symindex, unsigned int relsec,
struct module *mod)
{
unsigned int i;
Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
DEBUGP ("Applying relocate section %u to %u\n", relsec,
sechdrs[relsec].sh_info);
for (i = 0; i < sechdrs[relsec].sh_size / sizeof (*rela); i++) {
/* This is where to make the change */
uint32_t *loc
= ((void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+ rela[i].r_offset);
/* This is the symbol it is referring to. Note that all
undefined symbols have been resolved. */
Elf32_Sym *sym
= ((Elf32_Sym *)sechdrs[symindex].sh_addr
+ ELF32_R_SYM (rela[i].r_info));
uint32_t val = sym->st_value + rela[i].r_addend;
switch (ELF32_R_TYPE (rela[i].r_info)) {
case R_V850_32:
/* We write two shorts instead of a long because even
32-bit insns only need half-word alignment, but
32-bit data writes need to be long-word aligned. */
val += ((uint16_t *)loc)[0];
val += ((uint16_t *)loc)[1] << 16;
((uint16_t *)loc)[0] = val & 0xffff;
((uint16_t *)loc)[1] = (val >> 16) & 0xffff;
break;
case R_V850_22_PCREL:
/* Maybe jump indirectly via a PLT table entry. */
if ((int32_t)(val - (uint32_t)loc) > 0x1fffff
|| (int32_t)(val - (uint32_t)loc) < -0x200000)
val = do_plt_call (loc, val, sechdrs, mod);
val -= (uint32_t)loc;
/* We write two shorts instead of a long because
even 32-bit insns only need half-word alignment,
but 32-bit data writes need to be long-word
aligned. */
((uint16_t *)loc)[0] =
(*(uint16_t *)loc & 0xffc0) /* opcode + reg */
| ((val >> 16) & 0xffc03f); /* offs high */
((uint16_t *)loc)[1] =
(val & 0xffff); /* offs low */
break;
default:
printk (KERN_ERR "module %s: Unknown reloc: %u\n",
mod->name, ELF32_R_TYPE (rela[i].r_info));
return -ENOEXEC;
}
}
return 0;
}
void
module_arch_cleanup(struct module *mod)
{
}

217
arch/v850/kernel/process.c
View file

@ -1,217 +0,0 @@
/*
* arch/v850/kernel/process.c -- Arch-dependent process handling
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/user.h>
#include <linux/a.out.h>
#include <linux/reboot.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/pgtable.h>
void (*pm_power_off)(void) = NULL;
EXPORT_SYMBOL(pm_power_off);
extern void ret_from_fork (void);
/* The idle loop. */
static void default_idle (void)
{
while (! need_resched ())
asm ("halt; nop; nop; nop; nop; nop" ::: "cc");
}
void (*idle)(void) = default_idle;
/*
* The idle thread. There's no useful work to be
* done, so just try to conserve power and have a
* low exit latency (ie sit in a loop waiting for
* somebody to say that they'd like to reschedule)
*/
void cpu_idle (void)
{
/* endless idle loop with no priority at all */
while (1) {
while (!need_resched())
(*idle) ();
preempt_enable_no_resched();
schedule();
preempt_disable();
}
}
/*
* This is the mechanism for creating a new kernel thread.
*
* NOTE! Only a kernel-only process (ie the swapper or direct descendants who
* haven't done an "execve()") should use this: it will work within a system
* call from a "real" process, but the process memory space will not be free'd
* until both the parent and the child have exited.
*/
int kernel_thread (int (*fn)(void *), void *arg, unsigned long flags)
{
register mm_segment_t fs = get_fs ();
register unsigned long syscall asm (SYSCALL_NUM);
register unsigned long arg0 asm (SYSCALL_ARG0);
register unsigned long ret asm (SYSCALL_RET);
set_fs (KERNEL_DS);
/* Clone this thread. Note that we don't pass the clone syscall's
second argument -- it's ignored for calls from kernel mode (the
child's SP is always set to the top of the kernel stack). */
arg0 = flags | CLONE_VM;
syscall = __NR_clone;
asm volatile ("trap " SYSCALL_SHORT_TRAP
: "=r" (ret), "=r" (syscall)
: "1" (syscall), "r" (arg0)
: SYSCALL_SHORT_CLOBBERS);
if (ret == 0) {
/* In child thread, call FN and exit. */
arg0 = (*fn) (arg);
syscall = __NR_exit;
asm volatile ("trap " SYSCALL_SHORT_TRAP
: "=r" (ret), "=r" (syscall)
: "1" (syscall), "r" (arg0)
: SYSCALL_SHORT_CLOBBERS);
}
/* In parent. */
set_fs (fs);
return ret;
}
void flush_thread (void)
{
set_fs (USER_DS);
}
int copy_thread (int nr, unsigned long clone_flags,
unsigned long stack_start, unsigned long stack_size,
struct task_struct *p, struct pt_regs *regs)
{
/* Start pushing stuff from the top of the child's kernel stack. */
unsigned long orig_ksp = task_tos(p);
unsigned long ksp = orig_ksp;
/* We push two `state save' stack fames (see entry.S) on the new
kernel stack:
1) The innermost one is what switch_thread would have
pushed, and is used when we context switch to the child
thread for the first time. It's set up to return to
ret_from_fork in entry.S.
2) The outermost one (nearest the top) is what a syscall
trap would have pushed, and is set up to return to the
same location as the parent thread, but with a return
value of 0. */
struct pt_regs *child_switch_regs, *child_trap_regs;
/* Trap frame. */
ksp -= STATE_SAVE_SIZE;
child_trap_regs = (struct pt_regs *)(ksp + STATE_SAVE_PT_OFFSET);
/* Switch frame. */
ksp -= STATE_SAVE_SIZE;
child_switch_regs = (struct pt_regs *)(ksp + STATE_SAVE_PT_OFFSET);
/* First copy parent's register state to child. */
*child_switch_regs = *regs;
*child_trap_regs = *regs;
/* switch_thread returns to the restored value of the lp
register (r31), so we make that the place where we want to
jump when the child thread begins running. */
child_switch_regs->gpr[GPR_LP] = (v850_reg_t)ret_from_fork;
if (regs->kernel_mode)
/* Since we're returning to kernel-mode, make sure the child's
stored kernel stack pointer agrees with what the actual
stack pointer will be at that point (the trap return code
always restores the SP, even when returning to
kernel-mode). */
child_trap_regs->gpr[GPR_SP] = orig_ksp;
else
/* Set the child's user-mode stack-pointer (the name
`stack_start' is a misnomer, it's just the initial SP
value). */
child_trap_regs->gpr[GPR_SP] = stack_start;
/* Thread state for the child (everything else is on the stack). */
p->thread.ksp = ksp;
return 0;
}
/*
* sys_execve() executes a new program.
*/
int sys_execve (char *name, char **argv, char **envp, struct pt_regs *regs)
{
char *filename = getname (name);
int error = PTR_ERR (filename);
if (! IS_ERR (filename)) {
error = do_execve (filename, argv, envp, regs);
putname (filename);
}
return error;
}
/*
* These bracket the sleeping functions..
*/
#define first_sched ((unsigned long)__sched_text_start)
#define last_sched ((unsigned long)__sched_text_end)
unsigned long get_wchan (struct task_struct *p)
{
#if 0 /* Barf. Figure out the stack-layout later. XXX */
unsigned long fp, pc;
int count = 0;
if (!p || p == current || p->state == TASK_RUNNING)
return 0;
pc = thread_saved_pc (p);
/* This quite disgusting function walks up the stack, following
saved return address, until it something that's out of bounds
(as defined by `first_sched' and `last_sched'). It then
returns the last PC that was in-bounds. */
do {
if (fp < stack_page + sizeof (struct task_struct) ||
fp >= 8184+stack_page)
return 0;
pc = ((unsigned long *)fp)[1];
if (pc < first_sched || pc >= last_sched)
return pc;
fp = *(unsigned long *) fp;
} while (count++ < 16);
#endif
return 0;
}

67
arch/v850/kernel/procfs.c
View file

@ -1,67 +0,0 @@
/*
* arch/v850/kernel/procfs.c -- Introspection functions for /proc filesystem
*
* Copyright (C) 2001,02 NEC Corporation
* Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include "mach.h"
static int cpuinfo_print (struct seq_file *m, void *v)
{
extern unsigned long loops_per_jiffy;
seq_printf (m, "CPU-Family: v850\nCPU-Arch: %s\n", CPU_ARCH);
#ifdef CPU_MODEL_LONG
seq_printf (m, "CPU-Model: %s (%s)\n", CPU_MODEL, CPU_MODEL_LONG);
#else
seq_printf (m, "CPU-Model: %s\n", CPU_MODEL);
#endif
#ifdef CPU_CLOCK_FREQ
seq_printf (m, "CPU-Clock: %ld (%ld MHz)\n",
(long)CPU_CLOCK_FREQ,
(long)CPU_CLOCK_FREQ / 1000000);
#endif
seq_printf (m, "BogoMips: %lu.%02lu\n",
loops_per_jiffy/(500000/HZ),
(loops_per_jiffy/(5000/HZ)) % 100);
#ifdef PLATFORM_LONG
seq_printf (m, "Platform: %s (%s)\n", PLATFORM, PLATFORM_LONG);
#elif defined (PLATFORM)
seq_printf (m, "Platform: %s\n", PLATFORM);
#endif
return 0;
}
static void *cpuinfo_start (struct seq_file *m, loff_t *pos)
{
return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL;
}
static void *cpuinfo_next (struct seq_file *m, void *v, loff_t *pos)
{
++*pos;
return cpuinfo_start (m, pos);
}
static void cpuinfo_stop (struct seq_file *m, void *v)
{
}
const struct seq_operations cpuinfo_op = {
.start = cpuinfo_start,
.next = cpuinfo_next,
.stop = cpuinfo_stop,
.show = cpuinfo_print
};

235
arch/v850/kernel/ptrace.c
View file

@ -1,235 +0,0 @@
/*
* arch/v850/kernel/ptrace.c -- `ptrace' system call
*
* Copyright (C) 2002,03,04 NEC Electronics Corporation
* Copyright (C) 2002,03,04 Miles Bader <miles@gnu.org>
*
* Derived from arch/mips/kernel/ptrace.c:
*
* Copyright (C) 1992 Ross Biro
* Copyright (C) Linus Torvalds
* Copyright (C) 1994, 95, 96, 97, 98, 2000 Ralf Baechle
* Copyright (C) 1996 David S. Miller
* Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
* Copyright (C) 1999 MIPS Technologies, Inc.
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*/
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/ptrace.h>
#include <linux/signal.h>
#include <asm/errno.h>
#include <asm/ptrace.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
/* Returns the address where the register at REG_OFFS in P is stashed away. */
static v850_reg_t *reg_save_addr (unsigned reg_offs, struct task_struct *t)
{
struct pt_regs *regs;
/* Three basic cases:
(1) A register normally saved before calling the scheduler, is
available in the kernel entry pt_regs structure at the top
of the kernel stack. The kernel trap/irq exit path takes
care to save/restore almost all registers for ptrace'd
processes.
(2) A call-clobbered register, where the process P entered the
kernel via [syscall] trap, is not stored anywhere; that's
OK, because such registers are not expected to be preserved
when the trap returns anyway (so we don't actually bother to
test for this case).
(3) A few registers not used at all by the kernel, and so
normally never saved except by context-switches, are in the
context switch state. */
if (reg_offs == PT_CTPC || reg_offs == PT_CTPSW || reg_offs == PT_CTBP)
/* Register saved during context switch. */
regs = thread_saved_regs (t);
else
/* Register saved during kernel entry (or not available). */
regs = task_pt_regs (t);
return (v850_reg_t *)((char *)regs + reg_offs);
}
/* Set the bits SET and clear the bits CLEAR in the v850e DIR
(`debug information register'). Returns the new value of DIR. */
static inline v850_reg_t set_dir (v850_reg_t set, v850_reg_t clear)
{
register v850_reg_t rval asm ("r10");
register v850_reg_t arg0 asm ("r6") = set;
register v850_reg_t arg1 asm ("r7") = clear;
/* The dbtrap handler has exactly this functionality when called
from kernel mode. 0xf840 is a `dbtrap' insn. */
asm (".short 0xf840" : "=r" (rval) : "r" (arg0), "r" (arg1));
return rval;
}
/* Makes sure hardware single-stepping is (globally) enabled.
Returns true if successful. */
static inline int enable_single_stepping (void)
{
static int enabled = 0; /* Remember whether we already did it. */
if (! enabled) {
/* Turn on the SE (`single-step enable') bit, 0x100, in the
DIR (`debug information register'). This may fail if a
processor doesn't support it or something. We also try
to clear bit 0x40 (`INI'), which is necessary to use the
debug stuff on the v850e2; on the v850e, clearing 0x40
shouldn't cause any problem. */
v850_reg_t dir = set_dir (0x100, 0x40);
/* Make sure it really got set. */
if (dir & 0x100)
enabled = 1;
}
return enabled;
}
/* Try to set CHILD's single-step flag to VAL. Returns true if successful. */
static int set_single_step (struct task_struct *t, int val)
{
v850_reg_t *psw_addr = reg_save_addr(PT_PSW, t);
if (val) {
/* Make sure single-stepping is enabled. */
if (! enable_single_stepping ())
return 0;
/* Set T's single-step flag. */
*psw_addr |= 0x800;
} else
*psw_addr &= ~0x800;
return 1;
}
long arch_ptrace(struct task_struct *child, long request, long addr, long data)
{
int rval;
switch (request) {
unsigned long val;
case PTRACE_PEEKTEXT: /* read word at location addr. */
case PTRACE_PEEKDATA:
rval = generic_ptrace_peekdata(child, addr, data);
goto out;
case PTRACE_POKETEXT: /* write the word at location addr. */
case PTRACE_POKEDATA:
rval = generic_ptrace_pokedata(child, addr, data);
goto out;
/* Read/write the word at location ADDR in the registers. */
case PTRACE_PEEKUSR:
case PTRACE_POKEUSR:
rval = 0;
if (addr >= PT_SIZE && request == PTRACE_PEEKUSR) {
/* Special requests that don't actually correspond
to offsets in struct pt_regs. */
if (addr == PT_TEXT_ADDR)
val = child->mm->start_code;
else if (addr == PT_DATA_ADDR)
val = child->mm->start_data;
else if (addr == PT_TEXT_LEN)
val = child->mm->end_code
- child->mm->start_code;
else
rval = -EIO;
} else if (addr >= 0 && addr < PT_SIZE && (addr & 0x3) == 0) {
v850_reg_t *reg_addr = reg_save_addr(addr, child);
if (request == PTRACE_PEEKUSR)
val = *reg_addr;
else
*reg_addr = data;
} else
rval = -EIO;
if (rval == 0 && request == PTRACE_PEEKUSR)
rval = put_user (val, (unsigned long *)data);
goto out;
/* Continue and stop at next (return from) syscall */
case PTRACE_SYSCALL:
/* Restart after a signal. */
case PTRACE_CONT:
/* Execute a single instruction. */
case PTRACE_SINGLESTEP:
rval = -EIO;
if (!valid_signal(data))
break;
/* Turn CHILD's single-step flag on or off. */
if (! set_single_step (child, request == PTRACE_SINGLESTEP))
break;
if (request == PTRACE_SYSCALL)
set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
else
clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
child->exit_code = data;
wake_up_process(child);
rval = 0;
break;
/*
* make the child exit. Best I can do is send it a sigkill.
* perhaps it should be put in the status that it wants to
* exit.
*/
case PTRACE_KILL:
rval = 0;
if (child->exit_state == EXIT_ZOMBIE) /* already dead */
break;
child->exit_code = SIGKILL;
wake_up_process(child);
break;
case PTRACE_DETACH: /* detach a process that was attached. */
set_single_step (child, 0); /* Clear single-step flag */
rval = ptrace_detach(child, data);
break;
default:
rval = -EIO;
goto out;
}
out:
return rval;
}
asmlinkage void syscall_trace(void)
{
if (!test_thread_flag(TIF_SYSCALL_TRACE))
return;
if (!(current->ptrace & PT_PTRACED))
return;
/* The 0x80 provides a way for the tracing parent to distinguish
between a syscall stop and SIGTRAP delivery */
ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
? 0x80 : 0));
/*
* this isn't the same as continuing with a signal, but it will do
* for normal use. strace only continues with a signal if the
* stopping signal is not SIGTRAP. -brl
*/
if (current->exit_code) {
send_sig(current->exit_code, current, 1);
current->exit_code = 0;
}
}
void ptrace_disable (struct task_struct *child)
{
/* nothing to do */
}

193
arch/v850/kernel/rte_cb.c
View file

@ -1,193 +0,0 @@
/*
* include/asm-v850/rte_cb.c -- Midas lab RTE-CB series of evaluation boards
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/fs.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <asm/machdep.h>
#include <asm/v850e_uart.h>
#include "mach.h"
static void led_tick (void);
/* LED access routines. */
extern unsigned read_leds (int pos, char *buf, int len);
extern unsigned write_leds (int pos, const char *buf, int len);
#ifdef CONFIG_RTE_CB_MULTI
extern void multi_init (void);
#endif
void __init rte_cb_early_init (void)
{
v850e_intc_disable_irqs ();
#ifdef CONFIG_RTE_CB_MULTI
multi_init ();
#endif
}
void __init mach_setup (char **cmdline)
{
#ifdef CONFIG_RTE_MB_A_PCI
/* Probe for Mother-A, and print a message if we find it. */
*(volatile unsigned long *)MB_A_SRAM_ADDR = 0xDEADBEEF;
if (*(volatile unsigned long *)MB_A_SRAM_ADDR == 0xDEADBEEF) {
*(volatile unsigned long *)MB_A_SRAM_ADDR = 0x12345678;
if (*(volatile unsigned long *)MB_A_SRAM_ADDR == 0x12345678)
printk (KERN_INFO
" NEC SolutionGear/Midas lab"
" RTE-MOTHER-A motherboard\n");
}
#endif /* CONFIG_RTE_MB_A_PCI */
mach_tick = led_tick;
}
void machine_restart (char *__unused)
{
#ifdef CONFIG_RESET_GUARD
disable_reset_guard ();
#endif
asm ("jmp r0"); /* Jump to the reset vector. */
}
/* This says `HALt.' in LEDese. */
static unsigned char halt_leds_msg[] = { 0x76, 0x77, 0x38, 0xF8 };
void machine_halt (void)
{
#ifdef CONFIG_RESET_GUARD
disable_reset_guard ();
#endif
/* Ignore all interrupts. */
local_irq_disable ();
/* Write a little message. */
write_leds (0, halt_leds_msg, sizeof halt_leds_msg);
/* Really halt. */
for (;;)
asm ("halt; nop; nop; nop; nop; nop");
}
void machine_power_off (void)
{
machine_halt ();
}
/* Animated LED display for timer tick. */
#define TICK_UPD_FREQ 6
static int tick_frames[][10] = {
{ 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, -1 },
{ 0x63, 0x5c, -1 },
{ 0x5c, 0x00, -1 },
{ 0x63, 0x00, -1 },
{ -1 }
};
static void led_tick ()
{
static unsigned counter = 0;
if (++counter == (HZ / TICK_UPD_FREQ)) {
/* Which frame we're currently displaying for each digit. */
static unsigned frame_nums[LED_NUM_DIGITS] = { 0 };
/* Display image. */
static unsigned char image[LED_NUM_DIGITS] = { 0 };
unsigned char prev_image[LED_NUM_DIGITS];
int write_to_leds = 1; /* true if we should actually display */
int digit;
/* We check to see if the physical LEDs contains what we last
wrote to them; if not, we suppress display (this is so that
users can write to the LEDs, and not have their output
overwritten). As a special case, we start writing again if
all the LEDs are blank, or our display image is all zeros
(indicating that this is the initial update, when the actual
LEDs might contain random data). */
read_leds (0, prev_image, LED_NUM_DIGITS);
for (digit = 0; digit < LED_NUM_DIGITS; digit++)
if (image[digit] != prev_image[digit]
&& image[digit] && prev_image[digit])
{
write_to_leds = 0;
break;
}
/* Update display image. */
for (digit = 0;
digit < LED_NUM_DIGITS && tick_frames[digit][0] >= 0;
digit++)
{
int frame = tick_frames[digit][frame_nums[digit]];
if (frame < 0) {
image[digit] = tick_frames[digit][0];
frame_nums[digit] = 1;
} else {
image[digit] = frame;
frame_nums[digit]++;
break;
}
}
if (write_to_leds)
/* Write the display image to the physical LEDs. */
write_leds (0, image, LED_NUM_DIGITS);
counter = 0;
}
}
/* Mother-A interrupts. */
#ifdef CONFIG_RTE_GBUS_INT
#define L GBUS_INT_PRIORITY_LOW
#define M GBUS_INT_PRIORITY_MEDIUM
#define H GBUS_INT_PRIORITY_HIGH
static struct gbus_int_irq_init gbus_irq_inits[] = {
#ifdef CONFIG_RTE_MB_A_PCI
{ "MB_A_LAN", IRQ_MB_A_LAN, 1, 1, L },
{ "MB_A_PCI1", IRQ_MB_A_PCI1(0), IRQ_MB_A_PCI1_NUM, 1, L },
{ "MB_A_PCI2", IRQ_MB_A_PCI2(0), IRQ_MB_A_PCI2_NUM, 1, L },
{ "MB_A_EXT", IRQ_MB_A_EXT(0), IRQ_MB_A_EXT_NUM, 1, L },
{ "MB_A_USB_OC",IRQ_MB_A_USB_OC(0), IRQ_MB_A_USB_OC_NUM, 1, L },
{ "MB_A_PCMCIA_OC",IRQ_MB_A_PCMCIA_OC, 1, 1, L },
#endif
{ 0 }
};
#define NUM_GBUS_IRQ_INITS (ARRAY_SIZE(gbus_irq_inits) - 1)
static struct hw_interrupt_type gbus_hw_itypes[NUM_GBUS_IRQ_INITS];
#endif /* CONFIG_RTE_GBUS_INT */
void __init rte_cb_init_irqs (void)
{
#ifdef CONFIG_RTE_GBUS_INT
gbus_int_init_irqs ();
gbus_int_init_irq_types (gbus_irq_inits, gbus_hw_itypes);
#endif /* CONFIG_RTE_GBUS_INT */
}

137
arch/v850/kernel/rte_cb_leds.c
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@ -1,137 +0,0 @@
/*
* include/asm-v850/rte_cb_leds.c -- Midas lab RTE-CB board LED device support
*
* Copyright (C) 2002,03 NEC Electronics Corporation
* Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/fs.h>
#include <linux/miscdevice.h>
#include <asm/uaccess.h>
#define LEDS_MINOR 169 /* Minor device number, using misc major. */
/* The actual LED hardware is write-only, so we hold the contents here too. */
static unsigned char leds_image[LED_NUM_DIGITS] = { 0 };
/* Spinlock protecting the above leds. */
static DEFINE_SPINLOCK(leds_lock);
/* Common body of LED read/write functions, checks POS and LEN for
correctness, declares a variable using IMG_DECL, initialized pointing at
the POS position in the LED image buffer, and and iterates COPY_EXPR
until BUF is equal to the last buffer position; finally, sets LEN to be
the amount actually copied. IMG should be a variable declaration
(without an initializer or a terminating semicolon); POS, BUF, and LEN
should all be simple variables. */
#define DO_LED_COPY(img_decl, pos, buf, len, copy_expr) \
do { \
if (pos > LED_NUM_DIGITS) \
len = 0; \
else { \
if (pos + len > LED_NUM_DIGITS) \
len = LED_NUM_DIGITS - pos; \
\
if (len > 0) { \
unsigned long _flags; \
const char *_end = buf + len; \
img_decl = &leds_image[pos]; \
\
spin_lock_irqsave (leds_lock, _flags); \
do \
(copy_expr); \
while (buf != _end); \
spin_unlock_irqrestore (leds_lock, _flags); \
} \
} \
} while (0)
/* Read LEN bytes from LEDs at position POS, into BUF.
Returns actual amount read. */
unsigned read_leds (unsigned pos, char *buf, unsigned len)
{
DO_LED_COPY (const char *img, pos, buf, len, *buf++ = *img++);
return len;
}
/* Write LEN bytes to LEDs at position POS, from BUF.
Returns actual amount written. */
unsigned write_leds (unsigned pos, const char *buf, unsigned len)
{
/* We write the actual LED values backwards, because
increasing memory addresses reflect LEDs right-to-left. */
volatile char *led = &LED (LED_NUM_DIGITS - pos - 1);
/* We invert the value written to the hardware, because 1 = off,
and 0 = on. */
DO_LED_COPY (char *img, pos, buf, len,
*led-- = 0xFF ^ (*img++ = *buf++));
return len;
}
/* Device functions. */
static ssize_t leds_dev_read (struct file *file, char *buf, size_t len,
loff_t *pos)
{
char temp_buf[LED_NUM_DIGITS];
len = read_leds (*pos, temp_buf, len);
if (copy_to_user (buf, temp_buf, len))
return -EFAULT;
*pos += len;
return len;
}
static ssize_t leds_dev_write (struct file *file, const char *buf, size_t len,
loff_t *pos)
{
char temp_buf[LED_NUM_DIGITS];
if (copy_from_user (temp_buf, buf, min_t(size_t, len, LED_NUM_DIGITS)))
return -EFAULT;
len = write_leds (*pos, temp_buf, len);
*pos += len;
return len;
}
static loff_t leds_dev_lseek (struct file *file, loff_t offs, int whence)
{
if (whence == 1)
offs += file->f_pos; /* relative */
else if (whence == 2)
offs += LED_NUM_DIGITS; /* end-relative */
if (offs < 0 || offs > LED_NUM_DIGITS)
return -EINVAL;
file->f_pos = offs;
return 0;
}
static const struct file_operations leds_fops = {
.read = leds_dev_read,
.write = leds_dev_write,
.llseek = leds_dev_lseek
};
static struct miscdevice leds_miscdev = {
.name = "leds",
.minor = LEDS_MINOR,
.fops = &leds_fops
};
int __init leds_dev_init (void)
{
return misc_register (&leds_miscdev);
}
__initcall (leds_dev_init);

121
arch/v850/kernel/rte_cb_multi.c
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@ -1,121 +0,0 @@
/*
* include/asm-v850/rte_multi.c -- Support for Multi debugger monitor ROM
* on Midas lab RTE-CB series of evaluation boards
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/init.h>
#include <asm/machdep.h>
#define IRQ_ADDR(irq) (0x80 + (irq) * 0x10)
/* A table of which interrupt vectors to install, since blindly
installing all of them makes the debugger stop working. This is a
list of offsets in the interrupt vector area; each entry means to
copy that particular 16-byte vector. An entry less than zero ends
the table. */
static long multi_intv_install_table[] = {
/* Trap vectors */
0x40, 0x50,
#ifdef CONFIG_RTE_CB_MULTI_DBTRAP
/* Illegal insn / dbtrap. These are used by multi, so only handle
them if configured to do so. */
0x60,
#endif
/* GINT1 - GINT3 (note, not GINT0!) */
IRQ_ADDR (IRQ_GINT(1)),
IRQ_ADDR (IRQ_GINT(2)),
IRQ_ADDR (IRQ_GINT(3)),
/* Timer D interrupts (up to 4 timers) */
IRQ_ADDR (IRQ_INTCMD(0)),
#if IRQ_INTCMD_NUM > 1
IRQ_ADDR (IRQ_INTCMD(1)),
#if IRQ_INTCMD_NUM > 2
IRQ_ADDR (IRQ_INTCMD(2)),
#if IRQ_INTCMD_NUM > 3
IRQ_ADDR (IRQ_INTCMD(3)),
#endif
#endif
#endif
/* UART interrupts (up to 3 channels) */
IRQ_ADDR (IRQ_INTSER (0)), /* err */
IRQ_ADDR (IRQ_INTSR (0)), /* rx */
IRQ_ADDR (IRQ_INTST (0)), /* tx */
#if IRQ_INTSR_NUM > 1
IRQ_ADDR (IRQ_INTSER (1)), /* err */
IRQ_ADDR (IRQ_INTSR (1)), /* rx */
IRQ_ADDR (IRQ_INTST (1)), /* tx */
#if IRQ_INTSR_NUM > 2
IRQ_ADDR (IRQ_INTSER (2)), /* err */
IRQ_ADDR (IRQ_INTSR (2)), /* rx */
IRQ_ADDR (IRQ_INTST (2)), /* tx */
#endif
#endif
-1
};
/* Early initialization for kernel using Multi debugger ROM monitor. */
void __init multi_init (void)
{
/* We're using the Multi debugger monitor, so we have to install
the interrupt vectors. The monitor doesn't allow them to be
initially downloaded into their final destination because
it's in the monitor's scratch-RAM area. Unfortunately, Multi
also doesn't deal correctly with ELF sections where the LMA
and VMA differ -- it just ignores the LMA -- so we can't use
that feature to work around the problem. What we do instead
is just put the interrupt vectors into a normal section, and
do the necessary copying and relocation here. Since the
interrupt vector basically only contains `jr' instructions
and no-ops, it's not that hard. */
extern unsigned long _intv_load_start, _intv_start;
register unsigned long *src = &_intv_load_start;
register unsigned long *dst = (unsigned long *)INTV_BASE;
register unsigned long jr_fixup = (char *)&_intv_start - (char *)dst;
register long *ii;
/* Copy interrupt vectors as instructed by multi_intv_install_table. */
for (ii = multi_intv_install_table; *ii >= 0; ii++) {
/* Copy 16-byte interrupt vector at offset *ii. */
int boffs;
for (boffs = 0; boffs < 0x10; boffs += sizeof *src) {
/* Copy a single word, fixing up the jump offs
if it's a `jr' instruction. */
int woffs = (*ii + boffs) / sizeof *src;
unsigned long word = src[woffs];
if ((word & 0xFC0) == 0x780) {
/* A `jr' insn, fix up its offset (and yes, the
weird half-word swapping is intentional). */
unsigned short hi = word & 0xFFFF;
unsigned short lo = word >> 16;
unsigned long udisp22
= lo + ((hi & 0x3F) << 16);
long disp22 = (long)(udisp22 << 10) >> 10;
disp22 += jr_fixup;
hi = ((disp22 >> 16) & 0x3F) | 0x780;
lo = disp22 & 0xFFFF;
word = hi + (lo << 16);
}
dst[woffs] = word;
}
}
}

14
arch/v850/kernel/rte_ma1_cb-rom.ld
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@ -1,14 +0,0 @@
/* Linker script for the Midas labs RTE-V850E/MA1-CB evaluation board
(CONFIG_RTE_CB_MA1), with kernel in ROM. */
MEMORY {
ROM : ORIGIN = 0x00000000, LENGTH = 0x00100000
/* 1MB of SRAM. This memory is mirrored 4 times. */
SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
/* 32MB of SDRAM. */
SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
}
SECTIONS {
ROMK_SECTIONS(ROM, SRAM)
}

107
arch/v850/kernel/rte_ma1_cb.c
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@ -1,107 +0,0 @@
/*
* arch/v850/kernel/rte_ma1_cb.c -- Midas labs RTE-V850E/MA1-CB board
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <asm/atomic.h>
#include <asm/page.h>
#include <asm/ma1.h>
#include <asm/rte_ma1_cb.h>
#include <asm/v850e_timer_c.h>
#include "mach.h"
/* SRAM and SDRAM are almost contiguous (with a small hole in between;
see mach_reserve_bootmem for details), so just use both as one big area. */
#define RAM_START SRAM_ADDR
#define RAM_END (SDRAM_ADDR + SDRAM_SIZE)
void __init mach_early_init (void)
{
rte_cb_early_init ();
}
void __init mach_get_physical_ram (unsigned long *ram_start,
unsigned long *ram_len)
{
*ram_start = RAM_START;
*ram_len = RAM_END - RAM_START;
}
void __init mach_reserve_bootmem ()
{
#ifdef CONFIG_RTE_CB_MULTI
/* Prevent the kernel from touching the monitor's scratch RAM. */
reserve_bootmem(MON_SCRATCH_ADDR, MON_SCRATCH_SIZE,
BOOTMEM_DEFAULT);
#endif
/* The space between SRAM and SDRAM is filled with duplicate
images of SRAM. Prevent the kernel from using them. */
reserve_bootmem (SRAM_ADDR + SRAM_SIZE,
SDRAM_ADDR - (SRAM_ADDR + SRAM_SIZE),
BOOTMEM_DEFAULT);
}
void mach_gettimeofday (struct timespec *tv)
{
tv->tv_sec = 0;
tv->tv_nsec = 0;
}
/* Called before configuring an on-chip UART. */
void rte_ma1_cb_uart_pre_configure (unsigned chan,
unsigned cflags, unsigned baud)
{
/* The RTE-MA1-CB connects some general-purpose I/O pins on the
CPU to the RTS/CTS lines of UART 0's serial connection.
I/O pins P42 and P43 are RTS and CTS respectively. */
if (chan == 0) {
/* Put P42 & P43 in I/O port mode. */
MA_PORT4_PMC &= ~0xC;
/* Make P42 an output, and P43 an input. */
MA_PORT4_PM = (MA_PORT4_PM & ~0xC) | 0x8;
}
/* Do pre-configuration for the actual UART. */
ma_uart_pre_configure (chan, cflags, baud);
}
void __init mach_init_irqs (void)
{
unsigned tc;
/* Initialize interrupts. */
ma_init_irqs ();
rte_cb_init_irqs ();
/* Use falling-edge-sensitivity for interrupts . */
V850E_TIMER_C_SESC (0) &= ~0xC;
V850E_TIMER_C_SESC (1) &= ~0xF;
/* INTP000-INTP011 are shared with `Timer C', so we have to set
up Timer C to pass them through as raw interrupts. */
for (tc = 0; tc < 2; tc++)
/* Turn on the timer. */
V850E_TIMER_C_TMCC0 (tc) |= V850E_TIMER_C_TMCC0_CAE;
/* Make sure the relevant port0/port1 pins are assigned
interrupt duty. We used INTP001-INTP011 (don't screw with
INTP000 because the monitor uses it). */
MA_PORT0_PMC |= 0x4; /* P02 (INTP001) in IRQ mode. */
MA_PORT1_PMC |= 0x6; /* P11 (INTP010) & P12 (INTP011) in IRQ mode.*/
}

57
arch/v850/kernel/rte_ma1_cb.ld
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@ -1,57 +0,0 @@
/* Linker script for the Midas labs RTE-V850E/MA1-CB evaluation board
(CONFIG_RTE_CB_MA1), with kernel in SDRAM, under Multi debugger. */
MEMORY {
/* 1MB of SRAM; we can't use the last 32KB, because it's used by
the monitor scratch-RAM. This memory is mirrored 4 times. */
SRAM : ORIGIN = SRAM_ADDR, LENGTH = (SRAM_SIZE - MON_SCRATCH_SIZE)
/* Monitor scratch RAM; only the interrupt vectors should go here. */
MRAM : ORIGIN = MON_SCRATCH_ADDR, LENGTH = MON_SCRATCH_SIZE
/* 32MB of SDRAM. */
SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
}
#ifdef CONFIG_RTE_CB_MA1_KSRAM
# define KRAM SRAM
#else
# define KRAM SDRAM
#endif
SECTIONS {
/* We can't use RAMK_KRAM_CONTENTS because that puts the whole
kernel in a single ELF segment, and the Multi debugger (which
we use to load the kernel) appears to have bizarre problems
dealing with it. */
.text : {
__kram_start = . ;
TEXT_CONTENTS
} > KRAM
.data : {
DATA_CONTENTS
BSS_CONTENTS
RAMK_INIT_CONTENTS
__kram_end = . ;
BOOTMAP_CONTENTS
/* The address at which the interrupt vectors are initially
loaded by the loader. We can't load the interrupt vectors
directly into their target location, because the monitor
ROM for the GHS Multi debugger barfs if we try.
Unfortunately, Multi also doesn't deal correctly with ELF
sections where the LMA and VMA differ (it just ignores the
LMA), so we can't use that feature to work around the
problem! What we do instead is just put the interrupt
vectors into a normal section, and have the
`mach_early_init' function for Midas boards do the
necessary copying and relocation at runtime (this section
basically only contains `jr' instructions, so it's not
that hard). */
. = ALIGN (0x10) ;
__intv_load_start = . ;
INTV_CONTENTS
} > KRAM
.root ALIGN (4096) : { ROOT_FS_CONTENTS } > SDRAM
}

819
arch/v850/kernel/rte_mb_a_pci.c
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@ -1,819 +0,0 @@
/*
* arch/v850/kernel/mb_a_pci.c -- PCI support for Midas lab RTE-MOTHER-A board
*
* Copyright (C) 2001,02,03,05 NEC Electronics Corporation
* Copyright (C) 2001,02,03,05 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/pci.h>
#include <asm/machdep.h>
/* __nomods_init is like __devinit, but is a no-op when modules are enabled.
This is used by some routines that can be called either during boot
or by a module. */
#ifdef CONFIG_MODULES
#define __nomods_init /*nothing*/
#else
#define __nomods_init __devinit
#endif
/* PCI devices on the Mother-A board can only do DMA to/from the MB SRAM
(the RTE-V850E/MA1-CB cpu board doesn't support PCI access to
CPU-board memory), and since linux DMA buffers are allocated in
normal kernel memory, we basically have to copy DMA blocks around
(this is like a `bounce buffer'). When a DMA block is `mapped', we
allocate an identically sized block in MB SRAM, and if we're doing
output to the device, copy the CPU-memory block to the MB-SRAM block.
When an active block is `unmapped', we will copy the block back to
CPU memory if necessary, and then deallocate the MB SRAM block.
Ack. */
/* Where the motherboard SRAM is in the PCI-bus address space (the
first 512K of it is also mapped at PCI address 0). */
#define PCI_MB_SRAM_ADDR 0x800000
/* Convert CPU-view MB SRAM address to/from PCI-view addresses of the
same memory. */
#define MB_SRAM_TO_PCI(mb_sram_addr) \
((dma_addr_t)mb_sram_addr - MB_A_SRAM_ADDR + PCI_MB_SRAM_ADDR)
#define PCI_TO_MB_SRAM(pci_addr) \
(void *)(pci_addr - PCI_MB_SRAM_ADDR + MB_A_SRAM_ADDR)
static void pcibios_assign_resources (void);
struct mb_pci_dev_irq {
unsigned dev; /* PCI device number */
unsigned irq_base; /* First IRQ */
unsigned query_pin; /* True if we should read the device's
Interrupt Pin info, and allocate
interrupt IRQ_BASE + PIN. */
};
/* PCI interrupts are mapped statically to GBUS interrupts. */
static struct mb_pci_dev_irq mb_pci_dev_irqs[] = {
/* Motherboard SB82558 ethernet controller */
{ 10, IRQ_MB_A_LAN, 0 },
/* PCI slot 1 */
{ 8, IRQ_MB_A_PCI1(0), 1 },
/* PCI slot 2 */
{ 9, IRQ_MB_A_PCI2(0), 1 }
};
#define NUM_MB_PCI_DEV_IRQS ARRAY_SIZE(mb_pci_dev_irqs)
/* PCI configuration primitives. */
#define CONFIG_DMCFGA(bus, devfn, offs) \
(0x80000000 \
| ((offs) & ~0x3) \
| ((devfn) << 8) \
| ((bus)->number << 16))
static int
mb_pci_read (struct pci_bus *bus, unsigned devfn, int offs, int size, u32 *rval)
{
u32 addr;
int flags;
local_irq_save (flags);
MB_A_PCI_PCICR = 0x7;
MB_A_PCI_DMCFGA = CONFIG_DMCFGA (bus, devfn, offs);
addr = MB_A_PCI_IO_ADDR + (offs & 0x3);
switch (size) {
case 1: *rval = *(volatile u8 *)addr; break;
case 2: *rval = *(volatile u16 *)addr; break;
case 4: *rval = *(volatile u32 *)addr; break;
}
if (MB_A_PCI_PCISR & 0x2000) {
MB_A_PCI_PCISR = 0x2000;
*rval = ~0;
}
MB_A_PCI_DMCFGA = 0;
local_irq_restore (flags);
return PCIBIOS_SUCCESSFUL;
}
static int
mb_pci_write (struct pci_bus *bus, unsigned devfn, int offs, int size, u32 val)
{
u32 addr;
int flags;
local_irq_save (flags);
MB_A_PCI_PCICR = 0x7;
MB_A_PCI_DMCFGA = CONFIG_DMCFGA (bus, devfn, offs);
addr = MB_A_PCI_IO_ADDR + (offs & 0x3);
switch (size) {
case 1: *(volatile u8 *)addr = val; break;
case 2: *(volatile u16 *)addr = val; break;
case 4: *(volatile u32 *)addr = val; break;
}
if (MB_A_PCI_PCISR & 0x2000)
MB_A_PCI_PCISR = 0x2000;
MB_A_PCI_DMCFGA = 0;
local_irq_restore (flags);
return PCIBIOS_SUCCESSFUL;
}
static struct pci_ops mb_pci_config_ops = {
.read = mb_pci_read,
.write = mb_pci_write,
};
/* PCI Initialization. */
static struct pci_bus *mb_pci_bus = 0;
/* Do initial PCI setup. */
static int __devinit pcibios_init (void)
{
u32 id = MB_A_PCI_PCIHIDR;
u16 vendor = id & 0xFFFF;
u16 device = (id >> 16) & 0xFFFF;
if (vendor == PCI_VENDOR_ID_PLX && device == PCI_DEVICE_ID_PLX_9080) {
printk (KERN_INFO
"PCI: PLX Technology PCI9080 HOST/PCI bridge\n");
MB_A_PCI_PCICR = 0x147;
MB_A_PCI_PCIBAR0 = 0x007FFF00;
MB_A_PCI_PCIBAR1 = 0x0000FF00;
MB_A_PCI_PCIBAR2 = 0x00800000;
MB_A_PCI_PCILTR = 0x20;
MB_A_PCI_PCIPBAM |= 0x3;
MB_A_PCI_PCISR = ~0; /* Clear errors. */
/* Reprogram the motherboard's IO/config address space,
as we don't support the GCS7 address space that the
default uses. */
/* Significant address bits used for decoding PCI GCS5 space
accesses. */
MB_A_PCI_DMRR = ~(MB_A_PCI_MEM_SIZE - 1);
/* I don't understand this, but the SolutionGear example code
uses such an offset, and it doesn't work without it. XXX */
#if GCS5_SIZE == 0x00800000
#define GCS5_CFG_OFFS 0x00800000
#else
#define GCS5_CFG_OFFS 0
#endif
/* Address bit values for matching. Note that we have to give
the address from the motherboard's point of view, which is
different than the CPU's. */
/* PCI memory space. */
MB_A_PCI_DMLBAM = GCS5_CFG_OFFS + 0x0;
/* PCI I/O space. */
MB_A_PCI_DMLBAI =
GCS5_CFG_OFFS + (MB_A_PCI_IO_ADDR - GCS5_ADDR);
mb_pci_bus = pci_scan_bus (0, &mb_pci_config_ops, 0);
pcibios_assign_resources ();
} else
printk (KERN_ERR "PCI: HOST/PCI bridge not found\n");
return 0;
}
subsys_initcall (pcibios_init);
char __devinit *pcibios_setup (char *option)
{
/* Don't handle any options. */
return option;
}
int __nomods_init pcibios_enable_device (struct pci_dev *dev, int mask)
{
u16 cmd, old_cmd;
int idx;
struct resource *r;
pci_read_config_word(dev, PCI_COMMAND, &cmd);
old_cmd = cmd;
for (idx = 0; idx < 6; idx++) {
r = &dev->resource[idx];
if (!r->start && r->end) {
printk(KERN_ERR "PCI: Device %s not available because "
"of resource collisions\n", pci_name(dev));
return -EINVAL;
}
if (r->flags & IORESOURCE_IO)
cmd |= PCI_COMMAND_IO;
if (r->flags & IORESOURCE_MEM)
cmd |= PCI_COMMAND_MEMORY;
}
if (cmd != old_cmd) {
printk("PCI: Enabling device %s (%04x -> %04x)\n",
pci_name(dev), old_cmd, cmd);
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
return 0;
}
/* Resource allocation. */
static void __devinit pcibios_assign_resources (void)
{
struct pci_dev *dev = NULL;
struct resource *r;
for_each_pci_dev(dev) {
unsigned di_num;
unsigned class = dev->class >> 8;
if (class && class != PCI_CLASS_BRIDGE_HOST) {
unsigned r_num;
for(r_num = 0; r_num < 6; r_num++) {
r = &dev->resource[r_num];
if (!r->start && r->end)
pci_assign_resource (dev, r_num);
}
}
/* Assign interrupts. */
for (di_num = 0; di_num < NUM_MB_PCI_DEV_IRQS; di_num++) {
struct mb_pci_dev_irq *di = &mb_pci_dev_irqs[di_num];
if (di->dev == PCI_SLOT (dev->devfn)) {
unsigned irq = di->irq_base;
if (di->query_pin) {
/* Find out which interrupt pin
this device uses (each PCI
slot has 4). */
u8 irq_pin;
pci_read_config_byte (dev,
PCI_INTERRUPT_PIN,
&irq_pin);
if (irq_pin == 0)
/* Doesn't use interrupts. */
continue;
else
irq += irq_pin - 1;
}
pcibios_update_irq (dev, irq);
}
}
}
}
void __devinit pcibios_update_irq (struct pci_dev *dev, int irq)
{
dev->irq = irq;
pci_write_config_byte (dev, PCI_INTERRUPT_LINE, irq);
}
void __devinit
pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
struct resource *res)
{
unsigned long offset = 0;
if (res->flags & IORESOURCE_IO) {
offset = MB_A_PCI_IO_ADDR;
} else if (res->flags & IORESOURCE_MEM) {
offset = MB_A_PCI_MEM_ADDR;
}
region->start = res->start - offset;
region->end = res->end - offset;
}
/* Stubs for things we don't use. */
/* Called after each bus is probed, but before its children are examined. */
void pcibios_fixup_bus(struct pci_bus *b)
{
}
void
pcibios_align_resource (void *data, struct resource *res,
resource_size_t size, resource_size_t align)
{
}
void pcibios_set_master (struct pci_dev *dev)
{
}
/* Mother-A SRAM memory allocation. This is a simple first-fit allocator. */
/* A memory free-list node. */
struct mb_sram_free_area {
void *mem;
unsigned long size;
struct mb_sram_free_area *next;
};
/* The tail of the free-list, which starts out containing all the SRAM. */
static struct mb_sram_free_area mb_sram_free_tail = {
(void *)MB_A_SRAM_ADDR, MB_A_SRAM_SIZE, 0
};
/* The free-list. */
static struct mb_sram_free_area *mb_sram_free_areas = &mb_sram_free_tail;
/* The free-list of free free-list nodes. (:-) */
static struct mb_sram_free_area *mb_sram_free_free_areas = 0;
/* Spinlock protecting the above globals. */
static DEFINE_SPINLOCK(mb_sram_lock);
/* Allocate a memory block at least SIZE bytes long in the Mother-A SRAM
space. */
static void *alloc_mb_sram (size_t size)
{
struct mb_sram_free_area *prev, *fa;
unsigned long flags;
void *mem = 0;
spin_lock_irqsave (mb_sram_lock, flags);
/* Look for a free area that can contain SIZE bytes. */
for (prev = 0, fa = mb_sram_free_areas; fa; prev = fa, fa = fa->next)
if (fa->size >= size) {
/* Found one! */
mem = fa->mem;
if (fa->size == size) {
/* In fact, it fits exactly, so remove
this node from the free-list. */
if (prev)
prev->next = fa->next;
else
mb_sram_free_areas = fa->next;
/* Put it on the free-list-entry-free-list. */
fa->next = mb_sram_free_free_areas;
mb_sram_free_free_areas = fa;
} else {
/* FA is bigger than SIZE, so just
reduce its size to account for this
allocation. */
fa->mem += size;
fa->size -= size;
}
break;
}
spin_unlock_irqrestore (mb_sram_lock, flags);
return mem;
}
/* Return the memory area MEM of size SIZE to the MB SRAM free pool. */
static void free_mb_sram (void *mem, size_t size)
{
struct mb_sram_free_area *prev, *fa, *new_fa;
unsigned long flags;
void *end = mem + size;
spin_lock_irqsave (mb_sram_lock, flags);
retry:
/* Find an adjacent free-list entry. */
for (prev = 0, fa = mb_sram_free_areas; fa; prev = fa, fa = fa->next)
if (fa->mem == end) {
/* FA is just after MEM, grow down to encompass it. */
fa->mem = mem;
fa->size += size;
goto done;
} else if (fa->mem + fa->size == mem) {
struct mb_sram_free_area *next_fa = fa->next;
/* FA is just before MEM, expand to encompass it. */
fa->size += size;
/* See if FA can now be merged with its successor. */
if (next_fa && fa->mem + fa->size == next_fa->mem) {
/* Yup; merge NEXT_FA's info into FA. */
fa->size += next_fa->size;
fa->next = next_fa->next;
/* Free NEXT_FA. */
next_fa->next = mb_sram_free_free_areas;
mb_sram_free_free_areas = next_fa;
}
goto done;
} else if (fa->mem > mem)
/* We've reached the right spot in the free-list
without finding an adjacent free-area, so add
a new free area to hold mem. */
break;
/* Make a new free-list entry. */
/* First, get a free-list entry. */
if (! mb_sram_free_free_areas) {
/* There are none, so make some. */
void *block;
size_t block_size = sizeof (struct mb_sram_free_area) * 8;
/* Don't hold the lock while calling kmalloc (I'm not
sure whether it would be a problem, since we use
GFP_ATOMIC, but it makes me nervous). */
spin_unlock_irqrestore (mb_sram_lock, flags);
block = kmalloc (block_size, GFP_ATOMIC);
if (! block)
panic ("free_mb_sram: can't allocate free-list entry");
/* Now get the lock back. */
spin_lock_irqsave (mb_sram_lock, flags);
/* Add the new free free-list entries. */
while (block_size > 0) {
struct mb_sram_free_area *nfa = block;
nfa->next = mb_sram_free_free_areas;
mb_sram_free_free_areas = nfa;
block += sizeof *nfa;
block_size -= sizeof *nfa;
}
/* Since we dropped the lock to call kmalloc, the
free-list could have changed, so retry from the
beginning. */
goto retry;
}
/* Remove NEW_FA from the free-list of free-list entries. */
new_fa = mb_sram_free_free_areas;
mb_sram_free_free_areas = new_fa->next;
/* NEW_FA initially holds only MEM. */
new_fa->mem = mem;
new_fa->size = size;
/* Insert NEW_FA in the free-list between PREV and FA. */
new_fa->next = fa;
if (prev)
prev->next = new_fa;
else
mb_sram_free_areas = new_fa;
done:
spin_unlock_irqrestore (mb_sram_lock, flags);
}
/* Maintainence of CPU -> Mother-A DMA mappings. */
struct dma_mapping {
void *cpu_addr;
void *mb_sram_addr;
size_t size;
struct dma_mapping *next;
};
/* A list of mappings from CPU addresses to MB SRAM addresses for active
DMA blocks (that have been `granted' to the PCI device). */
static struct dma_mapping *active_dma_mappings = 0;
/* A list of free mapping objects. */
static struct dma_mapping *free_dma_mappings = 0;
/* Spinlock protecting the above globals. */
static DEFINE_SPINLOCK(dma_mappings_lock);
static struct dma_mapping *new_dma_mapping (size_t size)
{
unsigned long flags;
struct dma_mapping *mapping;
void *mb_sram_block = alloc_mb_sram (size);
if (! mb_sram_block)
return 0;
spin_lock_irqsave (dma_mappings_lock, flags);
if (! free_dma_mappings) {
/* We're out of mapping structures, make more. */
void *mblock;
size_t mblock_size = sizeof (struct dma_mapping) * 8;
/* Don't hold the lock while calling kmalloc (I'm not
sure whether it would be a problem, since we use
GFP_ATOMIC, but it makes me nervous). */
spin_unlock_irqrestore (dma_mappings_lock, flags);
mblock = kmalloc (mblock_size, GFP_ATOMIC);
if (! mblock) {
free_mb_sram (mb_sram_block, size);
return 0;
}
/* Get the lock back. */
spin_lock_irqsave (dma_mappings_lock, flags);
/* Add the new mapping structures to the free-list. */
while (mblock_size > 0) {
struct dma_mapping *fm = mblock;
fm->next = free_dma_mappings;
free_dma_mappings = fm;
mblock += sizeof *fm;
mblock_size -= sizeof *fm;
}
}
/* Get a mapping struct from the freelist. */
mapping = free_dma_mappings;
free_dma_mappings = mapping->next;
/* Initialize the mapping. Other fields should be filled in by
caller. */
mapping->mb_sram_addr = mb_sram_block;
mapping->size = size;
/* Add it to the list of active mappings. */
mapping->next = active_dma_mappings;
active_dma_mappings = mapping;
spin_unlock_irqrestore (dma_mappings_lock, flags);
return mapping;
}
static struct dma_mapping *find_dma_mapping (void *mb_sram_addr)
{
unsigned long flags;
struct dma_mapping *mapping;
spin_lock_irqsave (dma_mappings_lock, flags);
for (mapping = active_dma_mappings; mapping; mapping = mapping->next)
if (mapping->mb_sram_addr == mb_sram_addr) {
spin_unlock_irqrestore (dma_mappings_lock, flags);
return mapping;
}
panic ("find_dma_mapping: unmapped PCI DMA addr 0x%x",
MB_SRAM_TO_PCI (mb_sram_addr));
}
static struct dma_mapping *deactivate_dma_mapping (void *mb_sram_addr)
{
unsigned long flags;
struct dma_mapping *mapping, *prev;
spin_lock_irqsave (dma_mappings_lock, flags);
for (prev = 0, mapping = active_dma_mappings;
mapping;
prev = mapping, mapping = mapping->next)
{
if (mapping->mb_sram_addr == mb_sram_addr) {
/* This is the MAPPING; deactivate it. */
if (prev)
prev->next = mapping->next;
else
active_dma_mappings = mapping->next;
spin_unlock_irqrestore (dma_mappings_lock, flags);
return mapping;
}
}
panic ("deactivate_dma_mapping: unmapped PCI DMA addr 0x%x",
MB_SRAM_TO_PCI (mb_sram_addr));
}
/* Return MAPPING to the freelist. */
static inline void
free_dma_mapping (struct dma_mapping *mapping)
{
unsigned long flags;
free_mb_sram (mapping->mb_sram_addr, mapping->size);
spin_lock_irqsave (dma_mappings_lock, flags);
mapping->next = free_dma_mappings;
free_dma_mappings = mapping;
spin_unlock_irqrestore (dma_mappings_lock, flags);
}
/* Single PCI DMA mappings. */
/* `Grant' to PDEV the memory block at CPU_ADDR, for doing DMA. The
32-bit PCI bus mastering address to use is returned. the device owns
this memory until either pci_unmap_single or pci_dma_sync_single is
performed. */
dma_addr_t
pci_map_single (struct pci_dev *pdev, void *cpu_addr, size_t size, int dir)
{
struct dma_mapping *mapping = new_dma_mapping (size);
if (! mapping)
return 0;
mapping->cpu_addr = cpu_addr;
if (dir == PCI_DMA_BIDIRECTIONAL || dir == PCI_DMA_TODEVICE)
memcpy (mapping->mb_sram_addr, cpu_addr, size);
return MB_SRAM_TO_PCI (mapping->mb_sram_addr);
}
/* Return to the CPU the PCI DMA memory block previously `granted' to
PDEV, at DMA_ADDR. */
void pci_unmap_single (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
int dir)
{
void *mb_sram_addr = PCI_TO_MB_SRAM (dma_addr);
struct dma_mapping *mapping = deactivate_dma_mapping (mb_sram_addr);
if (size != mapping->size)
panic ("pci_unmap_single: size (%d) doesn't match"
" size of mapping at PCI DMA addr 0x%x (%d)\n",
size, dma_addr, mapping->size);
/* Copy back the DMA'd contents if necessary. */
if (dir == PCI_DMA_BIDIRECTIONAL || dir == PCI_DMA_FROMDEVICE)
memcpy (mapping->cpu_addr, mb_sram_addr, size);
/* Return mapping to the freelist. */
free_dma_mapping (mapping);
}
/* Make physical memory consistent for a single streaming mode DMA
translation after a transfer.
If you perform a pci_map_single() but wish to interrogate the
buffer using the cpu, yet do not wish to teardown the PCI dma
mapping, you must call this function before doing so. At the next
point you give the PCI dma address back to the card, you must first
perform a pci_dma_sync_for_device, and then the device again owns
the buffer. */
void
pci_dma_sync_single_for_cpu (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
int dir)
{
void *mb_sram_addr = PCI_TO_MB_SRAM (dma_addr);
struct dma_mapping *mapping = find_dma_mapping (mb_sram_addr);
/* Synchronize the DMA buffer with the CPU buffer if necessary. */
if (dir == PCI_DMA_FROMDEVICE)
memcpy (mapping->cpu_addr, mb_sram_addr, size);
else if (dir == PCI_DMA_TODEVICE)
; /* nothing to do */
else
panic("pci_dma_sync_single: unsupported sync dir: %d", dir);
}
void
pci_dma_sync_single_for_device (struct pci_dev *pdev, dma_addr_t dma_addr, size_t size,
int dir)
{
void *mb_sram_addr = PCI_TO_MB_SRAM (dma_addr);
struct dma_mapping *mapping = find_dma_mapping (mb_sram_addr);
/* Synchronize the DMA buffer with the CPU buffer if necessary. */
if (dir == PCI_DMA_FROMDEVICE)
; /* nothing to do */
else if (dir == PCI_DMA_TODEVICE)
memcpy (mb_sram_addr, mapping->cpu_addr, size);
else
panic("pci_dma_sync_single: unsupported sync dir: %d", dir);
}
/* Scatter-gather PCI DMA mappings. */
/* Do multiple DMA mappings at once. */
int
pci_map_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len, int dir)
{
BUG ();
return 0;
}
/* Unmap multiple DMA mappings at once. */
void
pci_unmap_sg (struct pci_dev *pdev, struct scatterlist *sg, int sg_len,int dir)
{
BUG ();
}
/* Make physical memory consistent for a set of streaming mode DMA
translations after a transfer. The same as pci_dma_sync_single_* but
for a scatter-gather list, same rules and usage. */
void
pci_dma_sync_sg_for_cpu (struct pci_dev *dev,
struct scatterlist *sg, int sg_len,
int dir)
{
BUG ();
}
void
pci_dma_sync_sg_for_device (struct pci_dev *dev,
struct scatterlist *sg, int sg_len,
int dir)
{
BUG ();
}
/* PCI mem mapping. */
/* Allocate and map kernel buffer using consistent mode DMA for PCI
device. Returns non-NULL cpu-view pointer to the buffer if
successful and sets *DMA_ADDR to the pci side dma address as well,
else DMA_ADDR is undefined. */
void *
pci_alloc_consistent (struct pci_dev *pdev, size_t size, dma_addr_t *dma_addr)
{
void *mb_sram_mem = alloc_mb_sram (size);
if (mb_sram_mem)
*dma_addr = MB_SRAM_TO_PCI (mb_sram_mem);
return mb_sram_mem;
}
/* Free and unmap a consistent DMA buffer. CPU_ADDR and DMA_ADDR must
be values that were returned from pci_alloc_consistent. SIZE must be
the same as what as passed into pci_alloc_consistent. References to
the memory and mappings associated with CPU_ADDR or DMA_ADDR past
this call are illegal. */
void
pci_free_consistent (struct pci_dev *pdev, size_t size, void *cpu_addr,
dma_addr_t dma_addr)
{
void *mb_sram_mem = PCI_TO_MB_SRAM (dma_addr);
free_mb_sram (mb_sram_mem, size);
}
/* iomap/iomap */
void __iomem *pci_iomap (struct pci_dev *dev, int bar, unsigned long max)
{
resource_size_t start = pci_resource_start (dev, bar);
resource_size_t len = pci_resource_len (dev, bar);
if (!start || len == 0)
return 0;
/* None of the ioremap functions actually do anything, other than
re-casting their argument, so don't bother differentiating them. */
return ioremap (start, len);
}
void pci_iounmap (struct pci_dev *dev, void __iomem *addr)
{
/* nothing */
}
/* symbol exports (for modules) */
EXPORT_SYMBOL (pci_map_single);
EXPORT_SYMBOL (pci_unmap_single);
EXPORT_SYMBOL (pci_alloc_consistent);
EXPORT_SYMBOL (pci_free_consistent);
EXPORT_SYMBOL (pci_dma_sync_single_for_cpu);
EXPORT_SYMBOL (pci_dma_sync_single_for_device);
EXPORT_SYMBOL (pci_iomap);
EXPORT_SYMBOL (pci_iounmap);

298
arch/v850/kernel/rte_me2_cb.c
View file

@ -1,298 +0,0 @@
/*
* arch/v850/kernel/rte_me2_cb.c -- Midas labs RTE-V850E/ME2-CB board
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/irq.h>
#include <linux/fs.h>
#include <linux/major.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <asm/atomic.h>
#include <asm/page.h>
#include <asm/me2.h>
#include <asm/rte_me2_cb.h>
#include <asm/machdep.h>
#include <asm/v850e_intc.h>
#include <asm/v850e_cache.h>
#include <asm/irq.h>
#include "mach.h"
extern unsigned long *_intv_start;
extern unsigned long *_intv_end;
/* LED access routines. */
extern unsigned read_leds (int pos, char *buf, int len);
extern unsigned write_leds (int pos, const char *buf, int len);
/* SDRAM are almost contiguous (with a small hole in between;
see mach_reserve_bootmem for details), so just use both as one big area. */
#define RAM_START SDRAM_ADDR
#define RAM_END (SDRAM_ADDR + SDRAM_SIZE)
void __init mach_get_physical_ram (unsigned long *ram_start,
unsigned long *ram_len)
{
*ram_start = RAM_START;
*ram_len = RAM_END - RAM_START;
}
void mach_gettimeofday (struct timespec *tv)
{
tv->tv_sec = 0;
tv->tv_nsec = 0;
}
/* Called before configuring an on-chip UART. */
void rte_me2_cb_uart_pre_configure (unsigned chan,
unsigned cflags, unsigned baud)
{
/* The RTE-V850E/ME2-CB connects some general-purpose I/O
pins on the CPU to the RTS/CTS lines of UARTB channel 0's
serial connection.
I/O pins P21 and P22 are RTS and CTS respectively. */
if (chan == 0) {
/* Put P21 & P22 in I/O port mode. */
ME2_PORT2_PMC &= ~0x6;
/* Make P21 and output, and P22 an input. */
ME2_PORT2_PM = (ME2_PORT2_PM & ~0xC) | 0x4;
}
me2_uart_pre_configure (chan, cflags, baud);
}
void __init mach_init_irqs (void)
{
/* Initialize interrupts. */
me2_init_irqs ();
rte_me2_cb_init_irqs ();
}
#ifdef CONFIG_ROM_KERNEL
/* Initialization for kernel in ROM. */
static inline rom_kernel_init (void)
{
/* If the kernel is in ROM, we have to copy any initialized data
from ROM into RAM. */
extern unsigned long _data_load_start, _sdata, _edata;
register unsigned long *src = &_data_load_start;
register unsigned long *dst = &_sdata, *end = &_edata;
while (dst != end)
*dst++ = *src++;
}
#endif /* CONFIG_ROM_KERNEL */
static void install_interrupt_vectors (void)
{
unsigned long *p1, *p2;
ME2_IRAMM = 0x03; /* V850E/ME2 iRAM write mode */
/* vector copy to iRAM */
p1 = (unsigned long *)0; /* v85x vector start */
p2 = (unsigned long *)&_intv_start;
while (p2 < (unsigned long *)&_intv_end)
*p1++ = *p2++;
ME2_IRAMM = 0x00; /* V850E/ME2 iRAM read mode */
}
/* CompactFlash */
static void cf_power_on (void)
{
/* CF card detected? */
if (CB_CF_STS0 & 0x0030)
return;
CB_CF_REG0 = 0x0002; /* reest on */
mdelay (10);
CB_CF_REG0 = 0x0003; /* power on */
mdelay (10);
CB_CF_REG0 = 0x0001; /* reset off */
mdelay (10);
}
static void cf_power_off (void)
{
CB_CF_REG0 = 0x0003; /* power on */
mdelay (10);
CB_CF_REG0 = 0x0002; /* reest on */
mdelay (10);
}
void __init mach_early_init (void)
{
install_interrupt_vectors ();
/* CS1 SDRAM instruction cache enable */
v850e_cache_enable (0x04, 0x03, 0);
rte_cb_early_init ();
/* CompactFlash power on */
cf_power_on ();
#if defined (CONFIG_ROM_KERNEL)
rom_kernel_init ();
#endif
}
/* RTE-V850E/ME2-CB Programmable Interrupt Controller. */
static struct cb_pic_irq_init cb_pic_irq_inits[] = {
{ "CB_EXTTM0", IRQ_CB_EXTTM0, 1, 1, 6 },
{ "CB_EXTSIO", IRQ_CB_EXTSIO, 1, 1, 6 },
{ "CB_TOVER", IRQ_CB_TOVER, 1, 1, 6 },
{ "CB_GINT0", IRQ_CB_GINT0, 1, 1, 6 },
{ "CB_USB", IRQ_CB_USB, 1, 1, 6 },
{ "CB_LANC", IRQ_CB_LANC, 1, 1, 6 },
{ "CB_USB_VBUS_ON", IRQ_CB_USB_VBUS_ON, 1, 1, 6 },
{ "CB_USB_VBUS_OFF", IRQ_CB_USB_VBUS_OFF, 1, 1, 6 },
{ "CB_EXTTM1", IRQ_CB_EXTTM1, 1, 1, 6 },
{ "CB_EXTTM2", IRQ_CB_EXTTM2, 1, 1, 6 },
{ 0 }
};
#define NUM_CB_PIC_IRQ_INITS (ARRAY_SIZE(cb_pic_irq_inits) - 1)
static struct hw_interrupt_type cb_pic_hw_itypes[NUM_CB_PIC_IRQ_INITS];
static unsigned char cb_pic_active_irqs = 0;
void __init rte_me2_cb_init_irqs (void)
{
cb_pic_init_irq_types (cb_pic_irq_inits, cb_pic_hw_itypes);
/* Initalize on board PIC1 (not PIC0) enable */
CB_PIC_INT0M = 0x0000;
CB_PIC_INT1M = 0x0000;
CB_PIC_INTR = 0x0000;
CB_PIC_INTEN |= CB_PIC_INT1EN;
ME2_PORT2_PMC |= 0x08; /* INTP23/SCK1 mode */
ME2_PORT2_PFC &= ~0x08; /* INTP23 mode */
ME2_INTR(2) &= ~0x08; /* INTP23 falling-edge detect */
ME2_INTF(2) &= ~0x08; /* " */
rte_cb_init_irqs (); /* gbus &c */
}
/* Enable interrupt handling for interrupt IRQ. */
void cb_pic_enable_irq (unsigned irq)
{
CB_PIC_INT1M |= 1 << (irq - CB_PIC_BASE_IRQ);
}
void cb_pic_disable_irq (unsigned irq)
{
CB_PIC_INT1M &= ~(1 << (irq - CB_PIC_BASE_IRQ));
}
void cb_pic_shutdown_irq (unsigned irq)
{
cb_pic_disable_irq (irq);
if (--cb_pic_active_irqs == 0)
free_irq (IRQ_CB_PIC, 0);
CB_PIC_INT1M &= ~(1 << (irq - CB_PIC_BASE_IRQ));
}
static irqreturn_t cb_pic_handle_irq (int irq, void *dev_id,
struct pt_regs *regs)
{
irqreturn_t rval = IRQ_NONE;
unsigned status = CB_PIC_INTR;
unsigned enable = CB_PIC_INT1M;
/* Only pay attention to enabled interrupts. */
status &= enable;
CB_PIC_INTEN &= ~CB_PIC_INT1EN;
if (status) {
unsigned mask = 1;
irq = CB_PIC_BASE_IRQ;
do {
/* There's an active interrupt, find out which one,
and call its handler. */
while (! (status & mask)) {
irq++;
mask <<= 1;
}
status &= ~mask;
CB_PIC_INTR = mask;
/* Recursively call handle_irq to handle it. */
handle_irq (irq, regs);
rval = IRQ_HANDLED;
} while (status);
}
CB_PIC_INTEN |= CB_PIC_INT1EN;
return rval;
}
static void irq_nop (unsigned irq) { }
static unsigned cb_pic_startup_irq (unsigned irq)
{
int rval;
if (cb_pic_active_irqs == 0) {
rval = request_irq (IRQ_CB_PIC, cb_pic_handle_irq,
IRQF_DISABLED, "cb_pic_handler", 0);
if (rval != 0)
return rval;
}
cb_pic_active_irqs++;
cb_pic_enable_irq (irq);
return 0;
}
/* Initialize HW_IRQ_TYPES for INTC-controlled irqs described in array
INITS (which is terminated by an entry with the name field == 0). */
void __init cb_pic_init_irq_types (struct cb_pic_irq_init *inits,
struct hw_interrupt_type *hw_irq_types)
{
struct cb_pic_irq_init *init;
for (init = inits; init->name; init++) {
struct hw_interrupt_type *hwit = hw_irq_types++;
hwit->typename = init->name;
hwit->startup = cb_pic_startup_irq;
hwit->shutdown = cb_pic_shutdown_irq;
hwit->enable = cb_pic_enable_irq;
hwit->disable = cb_pic_disable_irq;
hwit->ack = irq_nop;
hwit->end = irq_nop;
/* Initialize kernel IRQ infrastructure for this interrupt. */
init_irq_handlers(init->base, init->num, init->interval, hwit);
}
}

30
arch/v850/kernel/rte_me2_cb.ld
View file

@ -1,30 +0,0 @@
/* Linker script for the Midas labs RTE-V850E/ME2-CB evaluation board
(CONFIG_RTE_CB_ME2), with kernel in SDRAM. */
MEMORY {
/* 128Kbyte of IRAM */
IRAM : ORIGIN = 0x00000000, LENGTH = 0x00020000
/* 32MB of SDRAM. */
SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
}
#define KRAM SDRAM
SECTIONS {
.text : {
__kram_start = . ;
TEXT_CONTENTS
INTV_CONTENTS /* copy to iRAM (0x0-0x620) */
} > KRAM
.data : {
DATA_CONTENTS
BSS_CONTENTS
RAMK_INIT_CONTENTS
__kram_end = . ;
BOOTMAP_CONTENTS
} > KRAM
.root ALIGN (4096) : { ROOT_FS_CONTENTS } > SDRAM
}

57
arch/v850/kernel/rte_nb85e_cb-multi.ld
View file

@ -1,57 +0,0 @@
/* Linker script for the Midas labs RTE-NB85E-CB evaluation board
(CONFIG_RTE_CB_NB85E), with the Multi debugger ROM monitor . */
MEMORY {
/* 1MB of SRAM; we can't use the last 96KB, because it's used by
the monitor scratch-RAM. This memory is mirrored 4 times. */
SRAM : ORIGIN = SRAM_ADDR, LENGTH = (SRAM_SIZE - MON_SCRATCH_SIZE)
/* Monitor scratch RAM; only the interrupt vectors should go here. */
MRAM : ORIGIN = MON_SCRATCH_ADDR, LENGTH = MON_SCRATCH_SIZE
/* 16MB of SDRAM. */
SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
}
#ifdef CONFIG_RTE_CB_NB85E_KSRAM
# define KRAM SRAM
#else
# define KRAM SDRAM
#endif
SECTIONS {
/* We can't use RAMK_KRAM_CONTENTS because that puts the whole
kernel in a single ELF segment, and the Multi debugger (which
we use to load the kernel) appears to have bizarre problems
dealing with it. */
.text : {
__kram_start = . ;
TEXT_CONTENTS
} > KRAM
.data : {
DATA_CONTENTS
BSS_CONTENTS
RAMK_INIT_CONTENTS
__kram_end = . ;
BOOTMAP_CONTENTS
/* The address at which the interrupt vectors are initially
loaded by the loader. We can't load the interrupt vectors
directly into their target location, because the monitor
ROM for the GHS Multi debugger barfs if we try.
Unfortunately, Multi also doesn't deal correctly with ELF
sections where the LMA and VMA differ (it just ignores the
LMA), so we can't use that feature to work around the
problem! What we do instead is just put the interrupt
vectors into a normal section, and have the
`mach_early_init' function for Midas boards do the
necessary copying and relocation at runtime (this section
basically only contains `jr' instructions, so it's not
that hard). */
. = ALIGN (0x10) ;
__intv_load_start = . ;
INTV_CONTENTS
} > KRAM
.root ALIGN (4096) : { ROOT_FS_CONTENTS } > SDRAM
}

81
arch/v850/kernel/rte_nb85e_cb.c
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@ -1,81 +0,0 @@
/*
* arch/v850/kernel/rte_nb85e_cb.c -- Midas labs RTE-V850E/NB85E-CB board
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/bootmem.h>
#include <linux/irq.h>
#include <asm/atomic.h>
#include <asm/page.h>
#include <asm/v850e.h>
#include <asm/rte_nb85e_cb.h>
#include "mach.h"
void __init mach_early_init (void)
{
/* Configure caching; some possible settings:
BHC = 0x0000, DCC = 0x0000 -- all caching disabled
BHC = 0x0040, DCC = 0x0000 -- SDRAM: icache only
BHC = 0x0080, DCC = 0x0C00 -- SDRAM: write-back dcache only
BHC = 0x00C0, DCC = 0x0C00 -- SDRAM: icache + write-back dcache
BHC = 0x00C0, DCC = 0x0800 -- SDRAM: icache + write-thru dcache
We can only cache SDRAM (we can't use cache SRAM because it's in
the same memory region as the on-chip RAM and I/O space).
Unfortunately, the dcache seems to be buggy, so we only use the
icache for now. */
v850e_cache_enable (0x0040 /*BHC*/, 0x0003 /*ICC*/, 0x0000 /*DCC*/);
rte_cb_early_init ();
}
void __init mach_get_physical_ram (unsigned long *ram_start,
unsigned long *ram_len)
{
/* We just use SDRAM here. */
*ram_start = SDRAM_ADDR;
*ram_len = SDRAM_SIZE;
}
void mach_gettimeofday (struct timespec *tv)
{
tv->tv_sec = 0;
tv->tv_nsec = 0;
}
/* Called before configuring an on-chip UART. */
void rte_nb85e_cb_uart_pre_configure (unsigned chan,
unsigned cflags, unsigned baud)
{
/* The RTE-NB85E-CB connects some general-purpose I/O pins on the
CPU to the RTS/CTS lines the UART's serial connection, as follows:
P00 = CTS (in), P01 = DSR (in), P02 = RTS (out), P03 = DTR (out). */
TEG_PORT0_PM = 0x03; /* P00 and P01 inputs, P02 and P03 outputs */
TEG_PORT0_IO = 0x03; /* Accept input */
/* Do pre-configuration for the actual UART. */
teg_uart_pre_configure (chan, cflags, baud);
}
void __init mach_init_irqs (void)
{
teg_init_irqs ();
rte_cb_init_irqs ();
}

22
arch/v850/kernel/rte_nb85e_cb.ld
View file

@ -1,22 +0,0 @@
/* Linker script for the Midas labs RTE-NB85E-CB evaluation board
(CONFIG_RTE_CB_NB85E). */
MEMORY {
LOW : ORIGIN = 0x0, LENGTH = 0x00100000
/* 1MB of SRAM This memory is mirrored 4 times. */
SRAM : ORIGIN = SRAM_ADDR, LENGTH = SRAM_SIZE
/* 16MB of SDRAM. */
SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
}
#ifdef CONFIG_RTE_CB_NB85E_KSRAM
# define KRAM SRAM
#else
# define KRAM SDRAM
#endif
SECTIONS {
.intv : { INTV_CONTENTS } > LOW
.sram : { RAMK_KRAM_CONTENTS } > KRAM
.root : { ROOT_FS_CONTENTS } > SDRAM
}

329
arch/v850/kernel/setup.c
View file

@ -1,329 +0,0 @@
/*
* arch/v850/kernel/setup.c -- Arch-dependent initialization functions
*
* Copyright (C) 2001,02,03,05,06 NEC Electronics Corporation
* Copyright (C) 2001,02,03,05,06 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/mm.h>
#include <linux/bootmem.h>
#include <linux/swap.h> /* we don't have swap, but for nr_free_pages */
#include <linux/irq.h>
#include <linux/reboot.h>
#include <linux/personality.h>
#include <linux/major.h>
#include <linux/root_dev.h>
#include <linux/mtd/mtd.h>
#include <linux/init.h>
#include <asm/irq.h>
#include <asm/setup.h>
#include "mach.h"
/* These symbols are all defined in the linker map to delineate various
statically allocated regions of memory. */
extern char _intv_start, _intv_end;
/* `kram' is only used if the kernel uses part of normal user RAM. */
extern char _kram_start __attribute__ ((__weak__));
extern char _kram_end __attribute__ ((__weak__));
extern char _init_start, _init_end;
extern char _bootmap;
extern char _stext, _etext, _sdata, _edata, _sbss, _ebss;
/* Many platforms use an embedded root image. */
extern char _root_fs_image_start __attribute__ ((__weak__));
extern char _root_fs_image_end __attribute__ ((__weak__));
char __initdata command_line[COMMAND_LINE_SIZE];
/* Memory not used by the kernel. */
static unsigned long total_ram_pages;
/* System RAM. */
static unsigned long ram_start = 0, ram_len = 0;
#define ADDR_TO_PAGE_UP(x) ((((unsigned long)x) + PAGE_SIZE-1) >> PAGE_SHIFT)
#define ADDR_TO_PAGE(x) (((unsigned long)x) >> PAGE_SHIFT)
#define PAGE_TO_ADDR(x) (((unsigned long)x) << PAGE_SHIFT)
static void init_mem_alloc (unsigned long ram_start, unsigned long ram_len);
void set_mem_root (void *addr, size_t len, char *cmd_line);
void __init setup_arch (char **cmdline)
{
/* Keep a copy of command line */
*cmdline = command_line;
memcpy (boot_command_line, command_line, COMMAND_LINE_SIZE);
boot_command_line[COMMAND_LINE_SIZE - 1] = '\0';
console_verbose ();
init_mm.start_code = (unsigned long) &_stext;
init_mm.end_code = (unsigned long) &_etext;
init_mm.end_data = (unsigned long) &_edata;
init_mm.brk = (unsigned long) &_kram_end;
/* Find out what mem this machine has. */
mach_get_physical_ram (&ram_start, &ram_len);
/* ... and tell the kernel about it. */
init_mem_alloc (ram_start, ram_len);
printk (KERN_INFO "CPU: %s\nPlatform: %s\n",
CPU_MODEL_LONG, PLATFORM_LONG);
/* do machine-specific setups. */
mach_setup (cmdline);
#ifdef CONFIG_MTD
if (!ROOT_DEV && &_root_fs_image_end > &_root_fs_image_start)
set_mem_root (&_root_fs_image_start,
&_root_fs_image_end - &_root_fs_image_start,
*cmdline);
#endif
}
void __init trap_init (void)
{
}
#ifdef CONFIG_MTD
/* From drivers/mtd/devices/slram.c */
#define SLRAM_BLK_SZ 0x4000
/* Set the root filesystem to be the given memory region.
Some parameter may be appended to CMD_LINE. */
void set_mem_root (void *addr, size_t len, char *cmd_line)
{
/* Some sort of idiocy in MTD means we must supply a length that's
a multiple of SLRAM_BLK_SZ. We just round up the real length,
as the file system shouldn't attempt to access anything beyond
the end of the image anyway. */
len = (((len - 1) + SLRAM_BLK_SZ) / SLRAM_BLK_SZ) * SLRAM_BLK_SZ;
/* The only way to pass info to the MTD slram driver is via
the command line. */
if (*cmd_line) {
cmd_line += strlen (cmd_line);
*cmd_line++ = ' ';
}
sprintf (cmd_line, "slram=root,0x%x,+0x%x", (u32)addr, (u32)len);
ROOT_DEV = MKDEV (MTD_BLOCK_MAJOR, 0);
}
#endif
static void irq_nop (unsigned irq) { }
static unsigned irq_zero (unsigned irq) { return 0; }
static void nmi_end (unsigned irq)
{
if (irq != IRQ_NMI (0)) {
printk (KERN_CRIT "NMI %d is unrecoverable; restarting...",
irq - IRQ_NMI (0));
machine_restart (0);
}
}
static struct hw_interrupt_type nmi_irq_type = {
.typename = "NMI",
.startup = irq_zero, /* startup */
.shutdown = irq_nop, /* shutdown */
.enable = irq_nop, /* enable */
.disable = irq_nop, /* disable */
.ack = irq_nop, /* ack */
.end = nmi_end, /* end */
};
void __init init_IRQ (void)
{
init_irq_handlers (0, NUM_MACH_IRQS, 1, 0);
init_irq_handlers (IRQ_NMI (0), NUM_NMIS, 1, &nmi_irq_type);
mach_init_irqs ();
}
void __init mem_init (void)
{
max_mapnr = MAP_NR (ram_start + ram_len);
num_physpages = ADDR_TO_PAGE (ram_len);
total_ram_pages = free_all_bootmem ();
printk (KERN_INFO
"Memory: %luK/%luK available"
" (%luK kernel code, %luK data)\n",
PAGE_TO_ADDR (nr_free_pages()) / 1024,
ram_len / 1024,
((unsigned long)&_etext - (unsigned long)&_stext) / 1024,
((unsigned long)&_ebss - (unsigned long)&_sdata) / 1024);
}
void free_initmem (void)
{
unsigned long ram_end = ram_start + ram_len;
unsigned long start = PAGE_ALIGN ((unsigned long)(&_init_start));
if (start >= ram_start && start < ram_end) {
unsigned long addr;
unsigned long end = PAGE_ALIGN ((unsigned long)(&_init_end));
if (end > ram_end)
end = ram_end;
printk("Freeing unused kernel memory: %ldK freed\n",
(end - start) / 1024);
for (addr = start; addr < end; addr += PAGE_SIZE) {
struct page *page = virt_to_page (addr);
ClearPageReserved (page);
init_page_count (page);
__free_page (page);
total_ram_pages++;
}
}
}
/* Initialize the `bootmem allocator'. RAM_START and RAM_LEN identify
what RAM may be used. */
static void __init
init_bootmem_alloc (unsigned long ram_start, unsigned long ram_len)
{
/* The part of the kernel that's in the same managed RAM space
used for general allocation. */
unsigned long kram_start = (unsigned long)&_kram_start;
unsigned long kram_end = (unsigned long)&_kram_end;
/* End of the managed RAM space. */
unsigned long ram_end = ram_start + ram_len;
/* Address range of the interrupt vector table. */
unsigned long intv_start = (unsigned long)&_intv_start;
unsigned long intv_end = (unsigned long)&_intv_end;
/* True if the interrupt vectors are in the managed RAM area. */
int intv_in_ram = (intv_end > ram_start && intv_start < ram_end);
/* True if the interrupt vectors are inside the kernel's RAM. */
int intv_in_kram = (intv_end > kram_start && intv_start < kram_end);
/* A pointer to an optional function that reserves platform-specific
memory regions. We declare the pointer `volatile' to avoid gcc
turning the call into a static call (the problem is that since
it's a weak symbol, a static call may end up trying to reference
the location 0x0, which is not always reachable). */
void (*volatile mrb) (void) = mach_reserve_bootmem;
/* The bootmem allocator's allocation bitmap. */
unsigned long bootmap = (unsigned long)&_bootmap;
unsigned long bootmap_len;
/* Round bootmap location up to next page. */
bootmap = PAGE_TO_ADDR (ADDR_TO_PAGE_UP (bootmap));
/* Initialize bootmem allocator. */
bootmap_len = init_bootmem_node (NODE_DATA (0),
ADDR_TO_PAGE (bootmap),
ADDR_TO_PAGE (PAGE_OFFSET),
ADDR_TO_PAGE (ram_end));
/* Now make the RAM actually allocatable (it starts out `reserved'). */
free_bootmem (ram_start, ram_len);
if (kram_end > kram_start)
/* Reserve the RAM part of the kernel's address space, so it
doesn't get allocated. */
reserve_bootmem(kram_start, kram_end - kram_start,
BOOTMEM_DEFAULT);
if (intv_in_ram && !intv_in_kram)
/* Reserve the interrupt vector space. */
reserve_bootmem(intv_start, intv_end - intv_start,
BOOTMEM_DEFAULT);
if (bootmap >= ram_start && bootmap < ram_end)
/* Reserve the bootmap space. */
reserve_bootmem(bootmap, bootmap_len,
BOOTMEM_DEFAULT);
/* Reserve the memory used by the root filesystem image if it's
in RAM. */
if (&_root_fs_image_end > &_root_fs_image_start
&& (unsigned long)&_root_fs_image_start >= ram_start
&& (unsigned long)&_root_fs_image_start < ram_end)
reserve_bootmem ((unsigned long)&_root_fs_image_start,
&_root_fs_image_end - &_root_fs_image_start,
BOOTMEM_DEFAULT);
/* Let the platform-dependent code reserve some too. */
if (mrb)
(*mrb) ();
}
/* Tell the kernel about what RAM it may use for memory allocation. */
static void __init
init_mem_alloc (unsigned long ram_start, unsigned long ram_len)
{
unsigned i;
unsigned long zones_size[MAX_NR_ZONES];
init_bootmem_alloc (ram_start, ram_len);
for (i = 0; i < MAX_NR_ZONES; i++)
zones_size[i] = 0;
/* We stuff all the memory into one area, which includes the
initial gap from PAGE_OFFSET to ram_start. */
zones_size[ZONE_DMA]
= ADDR_TO_PAGE (ram_len + (ram_start - PAGE_OFFSET));
/* The allocator is very picky about the address of the first
allocatable page -- it must be at least as aligned as the
maximum allocation -- so try to detect cases where it will get
confused and signal them at compile time (this is a common
problem when porting to a new platform with ). There is a
similar runtime check in free_area_init_core. */
#if ((PAGE_OFFSET >> PAGE_SHIFT) & ((1UL << (MAX_ORDER - 1)) - 1))
#error MAX_ORDER is too large for given PAGE_OFFSET (use CONFIG_FORCE_MAX_ZONEORDER to change it)
#endif
NODE_DATA(0)->node_mem_map = NULL;
free_area_init_node(0, zones_size, ADDR_TO_PAGE (PAGE_OFFSET), 0);
}
/* Taken from m68knommu */
void show_mem(void)
{
unsigned long i;
int free = 0, total = 0, reserved = 0, shared = 0;
int cached = 0;
printk(KERN_INFO "\nMem-info:\n");
show_free_areas();
i = max_mapnr;
while (i-- > 0) {
total++;
if (PageReserved(mem_map+i))
reserved++;
else if (PageSwapCache(mem_map+i))
cached++;
else if (!page_count(mem_map+i))
free++;
else
shared += page_count(mem_map+i) - 1;
}
printk(KERN_INFO "%d pages of RAM\n",total);
printk(KERN_INFO "%d free pages\n",free);
printk(KERN_INFO "%d reserved pages\n",reserved);
printk(KERN_INFO "%d pages shared\n",shared);
printk(KERN_INFO "%d pages swap cached\n",cached);
}

523
arch/v850/kernel/signal.c
View file

@ -1,523 +0,0 @@
/*
* arch/v850/kernel/signal.c -- Signal handling
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
* Copyright (C) 1999,2000,2002 Niibe Yutaka & Kaz Kojima
* Copyright (C) 1991,1992 Linus Torvalds
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* 1997-11-28 Modified for POSIX.1b signals by Richard Henderson
*
* This file was derived from the sh version, arch/sh/kernel/signal.c
*/
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/kernel.h>
#include <linux/signal.h>
#include <linux/errno.h>
#include <linux/wait.h>
#include <linux/ptrace.h>
#include <linux/unistd.h>
#include <linux/stddef.h>
#include <linux/personality.h>
#include <linux/tty.h>
#include <asm/ucontext.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/thread_info.h>
#include <asm/cacheflush.h>
#define DEBUG_SIG 0
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset);
/*
* Atomically swap in the new signal mask, and wait for a signal.
*/
asmlinkage int
sys_sigsuspend(old_sigset_t mask, struct pt_regs *regs)
{
sigset_t saveset;
mask &= _BLOCKABLE;
spin_lock_irq(&current->sighand->siglock);
saveset = current->blocked;
siginitset(&current->blocked, mask);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
regs->gpr[GPR_RVAL] = -EINTR;
while (1) {
current->state = TASK_INTERRUPTIBLE;
schedule();
if (do_signal(regs, &saveset))
return -EINTR;
}
}
asmlinkage int
sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize,
struct pt_regs *regs)
{
sigset_t saveset, newset;
/* XXX: Don't preclude handling different sized sigset_t's. */
if (sigsetsize != sizeof(sigset_t))
return -EINVAL;
if (copy_from_user(&newset, unewset, sizeof(newset)))
return -EFAULT;
sigdelsetmask(&newset, ~_BLOCKABLE);
spin_lock_irq(&current->sighand->siglock);
saveset = current->blocked;
current->blocked = newset;
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
regs->gpr[GPR_RVAL] = -EINTR;
while (1) {
current->state = TASK_INTERRUPTIBLE;
schedule();
if (do_signal(regs, &saveset))
return -EINTR;
}
}
asmlinkage int
sys_sigaction(int sig, const struct old_sigaction *act,
struct old_sigaction *oact)
{
struct k_sigaction new_ka, old_ka;
int ret;
if (act) {
old_sigset_t mask;
if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
__get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
__get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
return -EFAULT;
__get_user(new_ka.sa.sa_flags, &act->sa_flags);
__get_user(mask, &act->sa_mask);
siginitset(&new_ka.sa.sa_mask, mask);
}
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
if (!ret && oact) {
if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
__put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
__put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
return -EFAULT;
__put_user(old_ka.sa.sa_flags, &oact->sa_flags);
__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
}
return ret;
}
asmlinkage int
sys_sigaltstack(const stack_t *uss, stack_t *uoss,
struct pt_regs *regs)
{
return do_sigaltstack(uss, uoss, regs->gpr[GPR_SP]);
}
/*
* Do a signal return; undo the signal stack.
*/
struct sigframe
{
struct sigcontext sc;
unsigned long extramask[_NSIG_WORDS-1];
unsigned long tramp[2]; /* signal trampoline */
};
struct rt_sigframe
{
struct siginfo info;
struct ucontext uc;
unsigned long tramp[2]; /* signal trampoline */
};
static int
restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc, int *rval_p)
{
unsigned int err = 0;
#define COPY(x) err |= __get_user(regs->x, &sc->regs.x)
COPY(gpr[0]); COPY(gpr[1]); COPY(gpr[2]); COPY(gpr[3]);
COPY(gpr[4]); COPY(gpr[5]); COPY(gpr[6]); COPY(gpr[7]);
COPY(gpr[8]); COPY(gpr[9]); COPY(gpr[10]); COPY(gpr[11]);
COPY(gpr[12]); COPY(gpr[13]); COPY(gpr[14]); COPY(gpr[15]);
COPY(gpr[16]); COPY(gpr[17]); COPY(gpr[18]); COPY(gpr[19]);
COPY(gpr[20]); COPY(gpr[21]); COPY(gpr[22]); COPY(gpr[23]);
COPY(gpr[24]); COPY(gpr[25]); COPY(gpr[26]); COPY(gpr[27]);
COPY(gpr[28]); COPY(gpr[29]); COPY(gpr[30]); COPY(gpr[31]);
COPY(pc); COPY(psw);
COPY(ctpc); COPY(ctpsw); COPY(ctbp);
#undef COPY
return err;
}
asmlinkage int sys_sigreturn(struct pt_regs *regs)
{
struct sigframe *frame = (struct sigframe *)regs->gpr[GPR_SP];
sigset_t set;
int rval;
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;
if (__get_user(set.sig[0], &frame->sc.oldmask)
|| (_NSIG_WORDS > 1
&& __copy_from_user(&set.sig[1], &frame->extramask,
sizeof(frame->extramask))))
goto badframe;
sigdelsetmask(&set, ~_BLOCKABLE);
spin_lock_irq(&current->sighand->siglock);
current->blocked = set;
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
if (restore_sigcontext(regs, &frame->sc, &rval))
goto badframe;
return rval;
badframe:
force_sig(SIGSEGV, current);
return 0;
}
asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
{
struct rt_sigframe *frame = (struct rt_sigframe *)regs->gpr[GPR_SP];
sigset_t set;
stack_t st;
int rval;
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto badframe;
sigdelsetmask(&set, ~_BLOCKABLE);
spin_lock_irq(&current->sighand->siglock);
current->blocked = set;
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &rval))
goto badframe;
if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st)))
goto badframe;
/* It is more difficult to avoid calling this function than to
call it and ignore errors. */
do_sigaltstack(&st, NULL, regs->gpr[GPR_SP]);
return rval;
badframe:
force_sig(SIGSEGV, current);
return 0;
}
/*
* Set up a signal frame.
*/
static int
setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs,
unsigned long mask)
{
int err = 0;
#define COPY(x) err |= __put_user(regs->x, &sc->regs.x)
COPY(gpr[0]); COPY(gpr[1]); COPY(gpr[2]); COPY(gpr[3]);
COPY(gpr[4]); COPY(gpr[5]); COPY(gpr[6]); COPY(gpr[7]);
COPY(gpr[8]); COPY(gpr[9]); COPY(gpr[10]); COPY(gpr[11]);
COPY(gpr[12]); COPY(gpr[13]); COPY(gpr[14]); COPY(gpr[15]);
COPY(gpr[16]); COPY(gpr[17]); COPY(gpr[18]); COPY(gpr[19]);
COPY(gpr[20]); COPY(gpr[21]); COPY(gpr[22]); COPY(gpr[23]);
COPY(gpr[24]); COPY(gpr[25]); COPY(gpr[26]); COPY(gpr[27]);
COPY(gpr[28]); COPY(gpr[29]); COPY(gpr[30]); COPY(gpr[31]);
COPY(pc); COPY(psw);
COPY(ctpc); COPY(ctpsw); COPY(ctbp);
#undef COPY
err |= __put_user(mask, &sc->oldmask);
return err;
}
/*
* Determine which stack to use..
*/
static inline void *
get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
{
/* Default to using normal stack */
unsigned long sp = regs->gpr[GPR_SP];
if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
sp = current->sas_ss_sp + current->sas_ss_size;
return (void *)((sp - frame_size) & -8UL);
}
static void setup_frame(int sig, struct k_sigaction *ka,
sigset_t *set, struct pt_regs *regs)
{
struct sigframe *frame;
int err = 0;
int signal;
frame = get_sigframe(ka, regs, sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
goto give_sigsegv;
signal = current_thread_info()->exec_domain
&& current_thread_info()->exec_domain->signal_invmap
&& sig < 32
? current_thread_info()->exec_domain->signal_invmap[sig]
: sig;
err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
if (_NSIG_WORDS > 1) {
err |= __copy_to_user(frame->extramask, &set->sig[1],
sizeof(frame->extramask));
}
/* Set up to return from userspace. If provided, use a stub
already in userspace. */
if (ka->sa.sa_flags & SA_RESTORER) {
regs->gpr[GPR_LP] = (unsigned long) ka->sa.sa_restorer;
} else {
/* Note, these encodings are _little endian_! */
/* addi __NR_sigreturn, r0, r12 */
err |= __put_user(0x6600 | (__NR_sigreturn << 16),
frame->tramp + 0);
/* trap 0 */
err |= __put_user(0x010007e0,
frame->tramp + 1);
regs->gpr[GPR_LP] = (unsigned long)frame->tramp;
flush_cache_sigtramp (regs->gpr[GPR_LP]);
}
if (err)
goto give_sigsegv;
/* Set up registers for signal handler. */
regs->pc = (v850_reg_t) ka->sa.sa_handler;
regs->gpr[GPR_SP] = (v850_reg_t)frame;
/* Signal handler args: */
regs->gpr[GPR_ARG0] = signal; /* arg 0: signum */
regs->gpr[GPR_ARG1] = (v850_reg_t)&frame->sc;/* arg 1: sigcontext */
set_fs(USER_DS);
#if DEBUG_SIG
printk("SIG deliver (%s:%d): sp=%p pc=%08lx ra=%08lx\n",
current->comm, current->pid, frame, regs->pc, );
#endif
return;
give_sigsegv:
force_sigsegv(sig, current);
}
static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
sigset_t *set, struct pt_regs *regs)
{
struct rt_sigframe *frame;
int err = 0;
int signal;
frame = get_sigframe(ka, regs, sizeof(*frame));
if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
goto give_sigsegv;
signal = current_thread_info()->exec_domain
&& current_thread_info()->exec_domain->signal_invmap
&& sig < 32
? current_thread_info()->exec_domain->signal_invmap[sig]
: sig;
err |= copy_siginfo_to_user(&frame->info, info);
/* Create the ucontext. */
err |= __put_user(0, &frame->uc.uc_flags);
err |= __put_user(0, &frame->uc.uc_link);
err |= __put_user((void *)current->sas_ss_sp,
&frame->uc.uc_stack.ss_sp);
err |= __put_user(sas_ss_flags(regs->gpr[GPR_SP]),
&frame->uc.uc_stack.ss_flags);
err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
err |= setup_sigcontext(&frame->uc.uc_mcontext,
regs, set->sig[0]);
err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
/* Set up to return from userspace. If provided, use a stub
already in userspace. */
if (ka->sa.sa_flags & SA_RESTORER) {
regs->gpr[GPR_LP] = (unsigned long) ka->sa.sa_restorer;
} else {
/* Note, these encodings are _little endian_! */
/* addi __NR_sigreturn, r0, r12 */
err |= __put_user(0x6600 | (__NR_sigreturn << 16),
frame->tramp + 0);
/* trap 0 */
err |= __put_user(0x010007e0,
frame->tramp + 1);
regs->gpr[GPR_LP] = (unsigned long)frame->tramp;
flush_cache_sigtramp (regs->gpr[GPR_LP]);
}
if (err)
goto give_sigsegv;
/* Set up registers for signal handler. */
regs->pc = (v850_reg_t) ka->sa.sa_handler;
regs->gpr[GPR_SP] = (v850_reg_t)frame;
/* Signal handler args: */
regs->gpr[GPR_ARG0] = signal; /* arg 0: signum */
regs->gpr[GPR_ARG1] = (v850_reg_t)&frame->info; /* arg 1: siginfo */
regs->gpr[GPR_ARG2] = (v850_reg_t)&frame->uc; /* arg 2: ucontext */
set_fs(USER_DS);
#if DEBUG_SIG
printk("SIG deliver (%s:%d): sp=%p pc=%08lx pr=%08lx\n",
current->comm, current->pid, frame, regs->pc, regs->pr);
#endif
return;
give_sigsegv:
force_sigsegv(sig, current);
}
/*
* OK, we're invoking a handler
*/
static void
handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
sigset_t *oldset, struct pt_regs * regs)
{
/* Are we from a system call? */
if (PT_REGS_SYSCALL (regs)) {
/* If so, check system call restarting.. */
switch (regs->gpr[GPR_RVAL]) {
case -ERESTART_RESTARTBLOCK:
current_thread_info()->restart_block.fn =
do_no_restart_syscall;
/* fall through */
case -ERESTARTNOHAND:
regs->gpr[GPR_RVAL] = -EINTR;
break;
case -ERESTARTSYS:
if (!(ka->sa.sa_flags & SA_RESTART)) {
regs->gpr[GPR_RVAL] = -EINTR;
break;
}
/* fallthrough */
case -ERESTARTNOINTR:
regs->gpr[12] = PT_REGS_SYSCALL (regs);
regs->pc -= 4; /* Size of `trap 0' insn. */
}
PT_REGS_SET_SYSCALL (regs, 0);
}
/* Set up the stack frame */
if (ka->sa.sa_flags & SA_SIGINFO)
setup_rt_frame(sig, ka, info, oldset, regs);
else
setup_frame(sig, ka, oldset, regs);
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
if (!(ka->sa.sa_flags & SA_NODEFER))
sigaddset(&current->blocked,sig);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
}
/*
* Note that 'init' is a special process: it doesn't get signals it doesn't
* want to handle. Thus you cannot kill init even with a SIGKILL even by
* mistake.
*
* Note that we go through the signals twice: once to check the signals that
* the kernel can handle, and then we build all the user-level signal handling
* stack-frames in one go after that.
*/
int do_signal(struct pt_regs *regs, sigset_t *oldset)
{
siginfo_t info;
int signr;
struct k_sigaction ka;
/*
* We want the common case to go fast, which
* is why we may in certain cases get here from
* kernel mode. Just return without doing anything
* if so.
*/
if (!user_mode(regs))
return 1;
if (!oldset)
oldset = &current->blocked;
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
/* Whee! Actually deliver the signal. */
handle_signal(signr, &info, &ka, oldset, regs);
return 1;
}
/* Did we come from a system call? */
if (PT_REGS_SYSCALL (regs)) {
int rval = (int)regs->gpr[GPR_RVAL];
/* Restart the system call - no handlers present */
if (rval == -ERESTARTNOHAND
|| rval == -ERESTARTSYS
|| rval == -ERESTARTNOINTR)
{
regs->gpr[12] = PT_REGS_SYSCALL (regs);
regs->pc -= 4; /* Size of `trap 0' insn. */
}
else if (rval == -ERESTART_RESTARTBLOCK) {
regs->gpr[12] = __NR_restart_syscall;
regs->pc -= 4; /* Size of `trap 0' insn. */
}
}
return 0;
}

172
arch/v850/kernel/sim.c
View file

@ -1,172 +0,0 @@
/*
* arch/v850/kernel/sim.c -- Machine-specific stuff for GDB v850e simulator
*
* Copyright (C) 2001,02 NEC Corporation
* Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/bootmem.h>
#include <linux/irq.h>
#include <asm/atomic.h>
#include <asm/page.h>
#include <asm/machdep.h>
#include <asm/simsyscall.h>
#include "mach.h"
/* The name of a file containing the root filesystem. */
#define ROOT_FS "rootfs.image"
extern void simcons_setup (void);
extern void simcons_poll_ttys (void);
extern void set_mem_root (void *addr, size_t len, char *cmd_line);
static int read_file (const char *name,
unsigned long *addr, unsigned long *len,
const char **err);
void __init mach_setup (char **cmdline)
{
const char *err;
unsigned long root_dev_addr, root_dev_len;
simcons_setup ();
printk (KERN_INFO "Reading root filesystem: %s", ROOT_FS);
if (read_file (ROOT_FS, &root_dev_addr, &root_dev_len, &err)) {
printk (" (size %luK)\n", root_dev_len / 1024);
set_mem_root ((void *)root_dev_addr, (size_t)root_dev_len,
*cmdline);
} else
printk ("...%s failed!\n", err);
}
void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len)
{
*ram_start = RAM_ADDR;
*ram_len = RAM_SIZE;
}
void __init mach_sched_init (struct irqaction *timer_action)
{
/* ...do magic timer initialization?... */
mach_tick = simcons_poll_ttys;
setup_irq (0, timer_action);
}
static void irq_nop (unsigned irq) { }
static unsigned irq_zero (unsigned irq) { return 0; }
static struct hw_interrupt_type sim_irq_type = {
.typename = "IRQ",
.startup = irq_zero, /* startup */
.shutdown = irq_nop, /* shutdown */
.enable = irq_nop, /* enable */
.disable = irq_nop, /* disable */
.ack = irq_nop, /* ack */
.end = irq_nop, /* end */
};
void __init mach_init_irqs (void)
{
init_irq_handlers (0, NUM_MACH_IRQS, 1, &sim_irq_type);
}
void mach_gettimeofday (struct timespec *tv)
{
long timeval[2], timezone[2];
int rval = V850_SIM_SYSCALL (gettimeofday, timeval, timezone);
if (rval == 0) {
tv->tv_sec = timeval[0];
tv->tv_nsec = timeval[1] * 1000;
}
}
void machine_restart (char *__unused)
{
V850_SIM_SYSCALL (write, 1, "RESTART\n", 8);
V850_SIM_SYSCALL (exit, 0);
}
void machine_halt (void)
{
V850_SIM_SYSCALL (write, 1, "HALT\n", 5);
V850_SIM_SYSCALL (exit, 0);
}
void machine_power_off (void)
{
V850_SIM_SYSCALL (write, 1, "POWER OFF\n", 10);
V850_SIM_SYSCALL (exit, 0);
}
/* Load data from a file called NAME into ram. The address and length
of the data image are returned in ADDR and LEN. */
static int __init
read_file (const char *name,
unsigned long *addr, unsigned long *len,
const char **err)
{
int rval, fd;
unsigned long cur, left;
/* Note this is not a normal stat buffer, it's an ad-hoc
structure defined by the simulator. */
unsigned long stat_buf[10];
/* Stat the file to find out the length. */
rval = V850_SIM_SYSCALL (stat, name, stat_buf);
if (rval < 0) {
if (err) *err = "stat";
return 0;
}
*len = stat_buf[4];
/* Open the file; `0' is O_RDONLY. */
fd = V850_SIM_SYSCALL (open, name, 0);
if (fd < 0) {
if (err) *err = "open";
return 0;
}
*addr = (unsigned long)alloc_bootmem(*len);
if (! *addr) {
V850_SIM_SYSCALL (close, fd);
if (err) *err = "alloc_bootmem";
return 0;
}
cur = *addr;
left = *len;
while (left > 0) {
int chunk = V850_SIM_SYSCALL (read, fd, cur, left);
if (chunk <= 0)
break;
cur += chunk;
left -= chunk;
}
V850_SIM_SYSCALL (close, fd);
if (left > 0) {
/* Some read failed. */
free_bootmem (*addr, *len);
if (err) *err = "read";
return 0;
}
return 1;
}

13
arch/v850/kernel/sim.ld
View file

@ -1,13 +0,0 @@
/* Linker script for the gdb v850e simulator (CONFIG_V850E_SIM). */
MEMORY {
/* Interrupt vectors. */
INTV : ORIGIN = 0x0, LENGTH = 0xe0
/* Main RAM. */
RAM : ORIGIN = RAM_ADDR, LENGTH = RAM_SIZE
}
SECTIONS {
.intv : { INTV_CONTENTS } > INTV
.ram : { RAMK_KRAM_CONTENTS } > RAM
}

195
arch/v850/kernel/sim85e2.c
View file

@ -1,195 +0,0 @@
/*
* arch/v850/kernel/sim85e2.c -- Machine-specific stuff for
* V850E2 RTL simulator
*
* Copyright (C) 2002,03 NEC Electronics Corporation
* Copyright (C) 2002,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/bootmem.h>
#include <linux/irq.h>
#include <asm/atomic.h>
#include <asm/page.h>
#include <asm/machdep.h>
#include "mach.h"
/* There are 4 possible areas we can use:
IRAM (1MB) is fast for instruction fetches, but slow for data
DRAM (1020KB) is fast for data, but slow for instructions
ERAM is cached, so should be fast for both insns and data
SDRAM is external DRAM, similar to ERAM
*/
#define INIT_MEMC_FOR_SDRAM
#define USE_SDRAM_AREA
#define KERNEL_IN_SDRAM_AREA
#define DCACHE_MODE V850E2_CACHE_BTSC_DCM_WT
/*#define DCACHE_MODE V850E2_CACHE_BTSC_DCM_WB_ALLOC*/
#ifdef USE_SDRAM_AREA
#define RAM_START SDRAM_ADDR
#define RAM_END (SDRAM_ADDR + SDRAM_SIZE)
#else
/* When we use DRAM, we need to account for the fact that the end of it is
used for R0_RAM. */
#define RAM_START DRAM_ADDR
#define RAM_END R0_RAM_ADDR
#endif
extern void memcons_setup (void);
#ifdef KERNEL_IN_SDRAM_AREA
#define EARLY_INIT_SECTION_ATTR __attribute__ ((section (".early.text")))
#else
#define EARLY_INIT_SECTION_ATTR __init
#endif
void EARLY_INIT_SECTION_ATTR mach_early_init (void)
{
/* The sim85e2 simulator tracks `undefined' values, so to make
debugging easier, we begin by zeroing out all otherwise
undefined registers. This is not strictly necessary.
The registers we zero are:
Every GPR except:
stack-pointer (r3)
task-pointer (r16)
our return addr (r31)
Every system register (SPR) that we know about except for
the PSW (SPR 5), which we zero except for the
disable-interrupts bit.
*/
/* GPRs */
asm volatile (" mov r0, r1 ; mov r0, r2 ");
asm volatile ("mov r0, r4 ; mov r0, r5 ; mov r0, r6 ; mov r0, r7 ");
asm volatile ("mov r0, r8 ; mov r0, r9 ; mov r0, r10; mov r0, r11");
asm volatile ("mov r0, r12; mov r0, r13; mov r0, r14; mov r0, r15");
asm volatile (" mov r0, r17; mov r0, r18; mov r0, r19");
asm volatile ("mov r0, r20; mov r0, r21; mov r0, r22; mov r0, r23");
asm volatile ("mov r0, r24; mov r0, r25; mov r0, r26; mov r0, r27");
asm volatile ("mov r0, r28; mov r0, r29; mov r0, r30");
/* SPRs */
asm volatile ("ldsr r0, 0; ldsr r0, 1; ldsr r0, 2; ldsr r0, 3");
asm volatile ("ldsr r0, 4");
asm volatile ("addi 0x20, r0, r1; ldsr r1, 5"); /* PSW */
asm volatile ("ldsr r0, 16; ldsr r0, 17; ldsr r0, 18; ldsr r0, 19");
asm volatile ("ldsr r0, 20");
#ifdef INIT_MEMC_FOR_SDRAM
/* Settings for SDRAM controller. */
V850E2_VSWC = 0x0042;
V850E2_BSC = 0x9286;
V850E2_BCT(0) = 0xb000; /* was: 0 */
V850E2_BCT(1) = 0x000b;
V850E2_ASC = 0;
V850E2_LBS = 0xa9aa; /* was: 0xaaaa */
V850E2_LBC(0) = 0;
V850E2_LBC(1) = 0; /* was: 0x3 */
V850E2_BCC = 0;
V850E2_RFS(4) = 0x800a; /* was: 0xf109 */
V850E2_SCR(4) = 0x2091; /* was: 0x20a1 */
V850E2_RFS(3) = 0x800c;
V850E2_SCR(3) = 0x20a1;
V850E2_DWC(0) = 0;
V850E2_DWC(1) = 0;
#endif
#if 0
#ifdef CONFIG_V850E2_SIM85E2S
/* Turn on the caches. */
V850E2_CACHE_BTSC = V850E2_CACHE_BTSC_ICM | DCACHE_MODE;
V850E2_BHC = 0x1010;
#elif CONFIG_V850E2_SIM85E2C
V850E2_CACHE_BTSC |= (V850E2_CACHE_BTSC_ICM | V850E2_CACHE_BTSC_DCM0);
V850E2_BUSM_BHC = 0xFFFF;
#endif
#else
V850E2_BHC = 0;
#endif
/* Don't stop the simulator at `halt' instructions. */
SIM85E2_NOTHAL = 1;
/* Ensure that the simulator halts on a panic, instead of going
into an infinite loop inside the panic function. */
panic_timeout = -1;
}
void __init mach_setup (char **cmdline)
{
memcons_setup ();
}
void mach_get_physical_ram (unsigned long *ram_start, unsigned long *ram_len)
{
*ram_start = RAM_START;
*ram_len = RAM_END - RAM_START;
}
void __init mach_sched_init (struct irqaction *timer_action)
{
/* The simulator actually cycles through all interrupts
periodically. We just pay attention to IRQ0, which gives us
1/64 the rate of the periodic interrupts. */
setup_irq (0, timer_action);
}
void mach_gettimeofday (struct timespec *tv)
{
tv->tv_sec = 0;
tv->tv_nsec = 0;
}
/* Interrupts */
struct v850e_intc_irq_init irq_inits[] = {
{ "IRQ", 0, NUM_MACH_IRQS, 1, 7 },
{ 0 }
};
struct hw_interrupt_type hw_itypes[1];
/* Initialize interrupts. */
void __init mach_init_irqs (void)
{
v850e_intc_init_irq_types (irq_inits, hw_itypes);
}
void machine_halt (void) __attribute__ ((noreturn));
void machine_halt (void)
{
SIM85E2_SIMFIN = 0; /* Halt immediately. */
for (;;) {}
}
void machine_restart (char *__unused)
{
machine_halt ();
}
void machine_power_off (void)
{
machine_halt ();
}

36
arch/v850/kernel/sim85e2.ld
View file

@ -1,36 +0,0 @@
/* Linker script for the sim85e2c simulator, which is a verilog simulation of
the V850E2 NA85E2C cpu core (CONFIG_V850E2_SIM85E2C). */
MEMORY {
/* 1MB of `instruction RAM', starting at 0.
Instruction fetches are much faster from IRAM than from DRAM. */
IRAM : ORIGIN = IRAM_ADDR, LENGTH = IRAM_SIZE
/* 1MB of `data RAM', below and contiguous with the I/O space.
Data fetches are much faster from DRAM than from IRAM. */
DRAM : ORIGIN = DRAM_ADDR, LENGTH = DRAM_SIZE
/* `external ram' (CS1 area), comes after IRAM. */
ERAM : ORIGIN = ERAM_ADDR, LENGTH = ERAM_SIZE
/* Dynamic RAM; uses memory controller. */
SDRAM : ORIGIN = SDRAM_ADDR, LENGTH = SDRAM_SIZE
}
SECTIONS {
.iram : {
INTV_CONTENTS
*arch/v850/kernel/head.o
*(.early.text)
} > IRAM
.dram : {
_memcons_output = . ;
. = . + 0x8000 ;
_memcons_output_end = . ;
} > DRAM
.sdram : {
/* We stick console output into a buffer here. */
RAMK_KRAM_CONTENTS
ROOT_FS_CONTENTS
} > SDRAM
}

161
arch/v850/kernel/simcons.c
View file

@ -1,161 +0,0 @@
/*
* arch/v850/kernel/simcons.c -- Console I/O for GDB v850e simulator
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/console.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/tty_driver.h>
#include <linux/init.h>
#include <asm/poll.h>
#include <asm/string.h>
#include <asm/simsyscall.h>
/* Low-level console. */
static void simcons_write (struct console *co, const char *buf, unsigned len)
{
V850_SIM_SYSCALL (write, 1, buf, len);
}
static int simcons_read (struct console *co, char *buf, unsigned len)
{
return V850_SIM_SYSCALL (read, 0, buf, len);
}
static struct tty_driver *tty_driver;
static struct tty_driver *simcons_device (struct console *c, int *index)
{
*index = c->index;
return tty_driver;
}
static struct console simcons =
{
.name = "simcons",
.write = simcons_write,
.read = simcons_read,
.device = simcons_device,
.flags = CON_PRINTBUFFER,
.index = -1,
};
/* Higher level TTY interface. */
int simcons_tty_open (struct tty_struct *tty, struct file *filp)
{
return 0;
}
int simcons_tty_write (struct tty_struct *tty,
const unsigned char *buf, int count)
{
return V850_SIM_SYSCALL (write, 1, buf, count);
}
int simcons_tty_write_room (struct tty_struct *tty)
{
/* Completely arbitrary. */
return 0x100000;
}
int simcons_tty_chars_in_buffer (struct tty_struct *tty)
{
/* We have no buffer. */
return 0;
}
static const struct tty_operations ops = {
.open = simcons_tty_open,
.write = simcons_tty_write,
.write_room = simcons_tty_write_room,
.chars_in_buffer = simcons_tty_chars_in_buffer,
};
int __init simcons_tty_init (void)
{
struct tty_driver *driver = alloc_tty_driver(1);
int err;
if (!driver)
return -ENOMEM;
driver->name = "simcons";
driver->major = TTY_MAJOR;
driver->minor_start = 64;
driver->type = TTY_DRIVER_TYPE_SYSCONS;
driver->init_termios = tty_std_termios;
tty_set_operations(driver, &ops);
err = tty_register_driver(driver);
if (err) {
put_tty_driver(driver);
return err;
}
tty_driver = driver;
return 0;
}
/* We use `late_initcall' instead of just `__initcall' as a workaround for
the fact that (1) simcons_tty_init can't be called before tty_init,
(2) tty_init is called via `module_init', (3) if statically linked,
module_init == device_init, and (4) there's no ordering of init lists.
We can do this easily because simcons is always statically linked, but
other tty drivers that depend on tty_init and which must use
`module_init' to declare their init routines are likely to be broken. */
late_initcall(simcons_tty_init);
/* Poll for input on the console, and if there's any, deliver it to the
tty driver. */
void simcons_poll_tty (struct tty_struct *tty)
{
char buf[32]; /* Not the nicest way to do it but I need it correct first */
int flip = 0, send_break = 0;
struct pollfd pfd;
pfd.fd = 0;
pfd.events = POLLIN;
if (V850_SIM_SYSCALL (poll, &pfd, 1, 0) > 0) {
if (pfd.revents & POLLIN) {
/* Real block hardware knows the transfer size before
transfer so the new tty buffering doesn't try to handle
this rather weird simulator specific case well */
int rd = V850_SIM_SYSCALL (read, 0, buf, 32);
if (rd > 0) {
tty_insert_flip_string(tty, buf, rd);
flip = 1;
} else
send_break = 1;
} else if (pfd.revents & POLLERR)
send_break = 1;
}
if (send_break) {
tty_insert_flip_char (tty, 0, TTY_BREAK);
flip = 1;
}
if (flip)
tty_schedule_flip (tty);
}
void simcons_poll_ttys (void)
{
if (tty_driver && tty_driver->ttys[0])
simcons_poll_tty (tty_driver->ttys[0]);
}
void simcons_setup (void)
{
V850_SIM_SYSCALL (make_raw, 0);
register_console (&simcons);
printk (KERN_INFO "Console: GDB V850E simulator stdio\n");
}

196
arch/v850/kernel/syscalls.c
View file

@ -1,196 +0,0 @@
/*
* arch/v850/kernel/syscalls.c -- Various system-call definitions not
* defined in machine-independent code
*
* Copyright (C) 2001,02 NEC Corporation
* Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* This file was derived the ppc version, arch/ppc/kernel/syscalls.c
* ... which was derived from "arch/i386/kernel/sys_i386.c" by Gary Thomas;
* modified by Cort Dougan (cort@cs.nmt.edu)
* and Paul Mackerras (paulus@cs.anu.edu.au).
*/
#include <linux/errno.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/syscalls.h>
#include <linux/sem.h>
#include <linux/msg.h>
#include <linux/shm.h>
#include <linux/stat.h>
#include <linux/mman.h>
#include <linux/sys.h>
#include <linux/ipc.h>
#include <linux/utsname.h>
#include <linux/file.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
/*
* sys_ipc() is the de-multiplexer for the SysV IPC calls..
*
* This is really horribly ugly.
*/
int
sys_ipc (uint call, int first, int second, int third, void *ptr, long fifth)
{
int version, ret;
version = call >> 16; /* hack for backward compatibility */
call &= 0xffff;
ret = -EINVAL;
switch (call) {
case SEMOP:
ret = sys_semop (first, (struct sembuf *)ptr, second);
break;
case SEMGET:
ret = sys_semget (first, second, third);
break;
case SEMCTL:
{
union semun fourth;
if (!ptr)
break;
if ((ret = access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT)
|| (ret = get_user(fourth.__pad, (void **)ptr)))
break;
ret = sys_semctl (first, second, third, fourth);
break;
}
case MSGSND:
ret = sys_msgsnd (first, (struct msgbuf *) ptr, second, third);
break;
case MSGRCV:
switch (version) {
case 0: {
struct ipc_kludge tmp;
if (!ptr)
break;
if ((ret = access_ok(VERIFY_READ, ptr, sizeof(tmp)) ? 0 : -EFAULT)
|| (ret = copy_from_user(&tmp,
(struct ipc_kludge *) ptr,
sizeof (tmp))))
break;
ret = sys_msgrcv (first, tmp.msgp, second, tmp.msgtyp,
third);
break;
}
default:
ret = sys_msgrcv (first, (struct msgbuf *) ptr,
second, fifth, third);
break;
}
break;
case MSGGET:
ret = sys_msgget ((key_t) first, second);
break;
case MSGCTL:
ret = sys_msgctl (first, second, (struct msqid_ds *) ptr);
break;
case SHMAT:
switch (version) {
default: {
ulong raddr;
if ((ret = access_ok(VERIFY_WRITE, (ulong*) third,
sizeof(ulong)) ? 0 : -EFAULT))
break;
ret = do_shmat (first, (char *) ptr, second, &raddr);
if (ret)
break;
ret = put_user (raddr, (ulong *) third);
break;
}
case 1: /* iBCS2 emulator entry point */
if (!segment_eq(get_fs(), get_ds()))
break;
ret = do_shmat (first, (char *) ptr, second,
(ulong *) third);
break;
}
break;
case SHMDT:
ret = sys_shmdt ((char *)ptr);
break;
case SHMGET:
ret = sys_shmget (first, second, third);
break;
case SHMCTL:
ret = sys_shmctl (first, second, (struct shmid_ds *) ptr);
break;
}
return ret;
}
static inline unsigned long
do_mmap2 (unsigned long addr, size_t len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff)
{
struct file * file = NULL;
int ret = -EBADF;
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
if (! (flags & MAP_ANONYMOUS)) {
if (!(file = fget (fd)))
goto out;
}
down_write (&current->mm->mmap_sem);
ret = do_mmap_pgoff (file, addr, len, prot, flags, pgoff);
up_write (&current->mm->mmap_sem);
if (file)
fput (file);
out:
return ret;
}
unsigned long sys_mmap2 (unsigned long addr, size_t len,
unsigned long prot, unsigned long flags,
unsigned long fd, unsigned long pgoff)
{
return do_mmap2 (addr, len, prot, flags, fd, pgoff);
}
unsigned long sys_mmap (unsigned long addr, size_t len,
unsigned long prot, unsigned long flags,
unsigned long fd, off_t offset)
{
int err = -EINVAL;
if (offset & ~PAGE_MASK)
goto out;
err = do_mmap2 (addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
out:
return err;
}
/*
* Do a system call from kernel instead of calling sys_execve so we
* end up with proper pt_regs.
*/
int kernel_execve(const char *filename, char *const argv[], char *const envp[])
{
register char *__a __asm__ ("r6") = filename;
register void *__b __asm__ ("r7") = argv;
register void *__c __asm__ ("r8") = envp;
register unsigned long __syscall __asm__ ("r12") = __NR_execve;
register unsigned long __ret __asm__ ("r10");
__asm__ __volatile__ ("trap 0"
: "=r" (__ret), "=r" (__syscall)
: "1" (__syscall), "r" (__a), "r" (__b), "r" (__c)
: "r1", "r5", "r11", "r13", "r14",
"r15", "r16", "r17", "r18", "r19");
return __ret;
}

62
arch/v850/kernel/teg.c
View file

@ -1,62 +0,0 @@
/*
* arch/v850/kernel/teg.c -- NB85E-TEG cpu chip
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/bootmem.h>
#include <linux/irq.h>
#include <asm/atomic.h>
#include <asm/page.h>
#include <asm/machdep.h>
#include <asm/v850e_timer_d.h>
#include "mach.h"
void __init mach_sched_init (struct irqaction *timer_action)
{
/* Select timer interrupt instead of external pin. */
TEG_ISS |= 0x1;
/* Start hardware timer. */
v850e_timer_d_configure (0, HZ);
/* Install timer interrupt handler. */
setup_irq (IRQ_INTCMD(0), timer_action);
}
static struct v850e_intc_irq_init irq_inits[] = {
{ "IRQ", 0, NUM_CPU_IRQS, 1, 7 },
{ "CMD", IRQ_INTCMD(0), IRQ_INTCMD_NUM, 1, 5 },
{ "SER", IRQ_INTSER(0), IRQ_INTSER_NUM, 1, 3 },
{ "SR", IRQ_INTSR(0), IRQ_INTSR_NUM, 1, 4 },
{ "ST", IRQ_INTST(0), IRQ_INTST_NUM, 1, 5 },
{ 0 }
};
#define NUM_IRQ_INITS (ARRAY_SIZE(irq_inits) - 1)
static struct hw_interrupt_type hw_itypes[NUM_IRQ_INITS];
/* Initialize MA chip interrupts. */
void __init teg_init_irqs (void)
{
v850e_intc_init_irq_types (irq_inits, hw_itypes);
}
/* Called before configuring an on-chip UART. */
void teg_uart_pre_configure (unsigned chan, unsigned cflags, unsigned baud)
{
/* Enable UART I/O pins instead of external interrupt pins, and
UART interrupts instead of external pin interrupts. */
TEG_ISS |= 0x4E;
}

106
arch/v850/kernel/time.c
View file

@ -1,106 +0,0 @@
/*
* linux/arch/v850/kernel/time.c -- Arch-dependent timer functions
*
* Copyright (C) 1991, 1992, 1995, 2001, 2002 Linus Torvalds
*
* This file contains the v850-specific time handling details.
* Most of the stuff is located in the machine specific files.
*
* 1997-09-10 Updated NTP code according to technical memorandum Jan '96
* "A Kernel Model for Precision Timekeeping" by Dave Mills
*/
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/param.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/time.h>
#include <linux/timex.h>
#include <linux/profile.h>
#include <asm/io.h>
#include "mach.h"
#define TICK_SIZE (tick_nsec / 1000)
/*
* timer_interrupt() needs to keep up the real-time clock,
* as well as call the "do_timer()" routine every clocktick
*/
static irqreturn_t timer_interrupt (int irq, void *dummy, struct pt_regs *regs)
{
#if 0
/* last time the cmos clock got updated */
static long last_rtc_update=0;
#endif
/* may need to kick the hardware timer */
if (mach_tick)
mach_tick ();
do_timer (1);
#ifndef CONFIG_SMP
update_process_times(user_mode(regs));
#endif
profile_tick(CPU_PROFILING, regs);
#if 0
/*
* If we have an externally synchronized Linux clock, then update
* CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
* called as close as possible to 500 ms before the new second starts.
*/
if (ntp_synced() &&
xtime.tv_sec > last_rtc_update + 660 &&
(xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
(xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
if (set_rtc_mmss (xtime.tv_sec) == 0)
last_rtc_update = xtime.tv_sec;
else
last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */
}
#ifdef CONFIG_HEARTBEAT
/* use power LED as a heartbeat instead -- much more useful
for debugging -- based on the version for PReP by Cort */
/* acts like an actual heart beat -- ie thump-thump-pause... */
if (mach_heartbeat) {
static unsigned cnt = 0, period = 0, dist = 0;
if (cnt == 0 || cnt == dist)
mach_heartbeat ( 1 );
else if (cnt == 7 || cnt == dist+7)
mach_heartbeat ( 0 );
if (++cnt > period) {
cnt = 0;
/* The hyperbolic function below modifies the heartbeat period
* length in dependency of the current (5min) load. It goes
* through the points f(0)=126, f(1)=86, f(5)=51,
* f(inf)->30. */
period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30;
dist = period / 4;
}
}
#endif /* CONFIG_HEARTBEAT */
#endif /* 0 */
return IRQ_HANDLED;
}
static int timer_dev_id;
static struct irqaction timer_irqaction = {
.handler = timer_interrupt,
.flags = IRQF_DISABLED,
.mask = CPU_MASK_NONE,
.name = "timer",
.dev_id = &timer_dev_id,
};
void time_init (void)
{
mach_gettimeofday (&xtime);
mach_sched_init (&timer_irqaction);
}

51
arch/v850/kernel/v850_ksyms.c
View file

@ -1,51 +0,0 @@
#include <linux/module.h>
#include <linux/linkage.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/user.h>
#include <linux/elfcore.h>
#include <linux/in6.h>
#include <linux/interrupt.h>
#include <asm/pgalloc.h>
#include <asm/irq.h>
#include <asm/io.h>
#include <asm/checksum.h>
#include <asm/current.h>
extern void *trap_table;
EXPORT_SYMBOL (trap_table);
/* platform dependent support */
EXPORT_SYMBOL (kernel_thread);
EXPORT_SYMBOL (__bug);
/* Networking helper routines. */
EXPORT_SYMBOL (csum_partial_copy_nocheck);
EXPORT_SYMBOL (csum_partial_copy_from_user);
EXPORT_SYMBOL (ip_compute_csum);
EXPORT_SYMBOL (ip_fast_csum);
/* string / mem functions */
EXPORT_SYMBOL (memset);
EXPORT_SYMBOL (memcpy);
EXPORT_SYMBOL (memmove);
/*
* libgcc functions - functions that are used internally by the
* compiler... (prototypes are not correct though, but that
* doesn't really matter since they're not versioned).
*/
extern void __ashldi3 (void);
extern void __ashrdi3 (void);
extern void __lshrdi3 (void);
extern void __muldi3 (void);
extern void __negdi2 (void);
EXPORT_SYMBOL (__ashldi3);
EXPORT_SYMBOL (__ashrdi3);
EXPORT_SYMBOL (__lshrdi3);
EXPORT_SYMBOL (__muldi3);
EXPORT_SYMBOL (__negdi2);

127
arch/v850/kernel/v850e2_cache.c
View file

@ -1,127 +0,0 @@
/*
* arch/v850/kernel/v850e2_cache.c -- Cache control for V850E2 cache
* memories
*
* Copyright (C) 2003 NEC Electronics Corporation
* Copyright (C) 2003 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/mm.h>
#include <asm/v850e2_cache.h>
/* Cache operations we can do. The encoding corresponds directly to the
value we need to write into the COPR register. */
enum cache_op {
OP_SYNC_IF_DIRTY = V850E2_CACHE_COPR_CFC(0), /* 000 */
OP_SYNC_IF_VALID = V850E2_CACHE_COPR_CFC(1), /* 001 */
OP_SYNC_IF_VALID_AND_CLEAR = V850E2_CACHE_COPR_CFC(3), /* 011 */
OP_WAY_CLEAR = V850E2_CACHE_COPR_CFC(4), /* 100 */
OP_FILL = V850E2_CACHE_COPR_CFC(5), /* 101 */
OP_CLEAR = V850E2_CACHE_COPR_CFC(6), /* 110 */
OP_CREATE_DIRTY = V850E2_CACHE_COPR_CFC(7) /* 111 */
};
/* Which cache to use. This encoding also corresponds directly to the
value we need to write into the COPR register. */
enum cache {
ICACHE = 0,
DCACHE = V850E2_CACHE_COPR_LBSL
};
/* Returns ADDR rounded down to the beginning of its cache-line. */
#define CACHE_LINE_ADDR(addr) \
((addr) & ~(V850E2_CACHE_LINE_SIZE - 1))
/* Returns END_ADDR rounded up to the `limit' of its cache-line. */
#define CACHE_LINE_END_ADDR(end_addr) \
CACHE_LINE_ADDR(end_addr + (V850E2_CACHE_LINE_SIZE - 1))
/* Low-level cache ops. */
/* Apply cache-op OP to all entries in CACHE. */
static inline void cache_op_all (enum cache_op op, enum cache cache)
{
int cmd = op | cache | V850E2_CACHE_COPR_WSLE | V850E2_CACHE_COPR_STRT;
if (op != OP_WAY_CLEAR) {
/* The WAY_CLEAR operation does the whole way, but other
ops take begin-index and count params; we just indicate
the entire cache. */
V850E2_CACHE_CADL = 0;
V850E2_CACHE_CADH = 0;
V850E2_CACHE_CCNT = V850E2_CACHE_WAY_SIZE - 1;
}
V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(0); /* way 0 */
V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(1); /* way 1 */
V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(2); /* way 2 */
V850E2_CACHE_COPR = cmd | V850E2_CACHE_COPR_WSL(3); /* way 3 */
}
/* Apply cache-op OP to all entries in CACHE covering addresses ADDR
through ADDR+LEN. */
static inline void cache_op_range (enum cache_op op, u32 addr, u32 len,
enum cache cache)
{
u32 start = CACHE_LINE_ADDR (addr);
u32 end = CACHE_LINE_END_ADDR (addr + len);
u32 num_lines = (end - start) >> V850E2_CACHE_LINE_SIZE_BITS;
V850E2_CACHE_CADL = start & 0xFFFF;
V850E2_CACHE_CADH = start >> 16;
V850E2_CACHE_CCNT = num_lines - 1;
V850E2_CACHE_COPR = op | cache | V850E2_CACHE_COPR_STRT;
}
/* High-level ops. */
static void cache_exec_after_store_all (void)
{
cache_op_all (OP_SYNC_IF_DIRTY, DCACHE);
cache_op_all (OP_WAY_CLEAR, ICACHE);
}
static void cache_exec_after_store_range (u32 start, u32 len)
{
cache_op_range (OP_SYNC_IF_DIRTY, start, len, DCACHE);
cache_op_range (OP_CLEAR, start, len, ICACHE);
}
/* Exported functions. */
void flush_icache (void)
{
cache_exec_after_store_all ();
}
void flush_icache_range (unsigned long start, unsigned long end)
{
cache_exec_after_store_range (start, end - start);
}
void flush_icache_page (struct vm_area_struct *vma, struct page *page)
{
cache_exec_after_store_range (page_to_virt (page), PAGE_SIZE);
}
void flush_icache_user_range (struct vm_area_struct *vma, struct page *page,
unsigned long addr, int len)
{
cache_exec_after_store_range (addr, len);
}
void flush_cache_sigtramp (unsigned long addr)
{
/* For the exact size, see signal.c, but 16 bytes should be enough. */
cache_exec_after_store_range (addr, 16);
}

174
arch/v850/kernel/v850e_cache.c
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@ -1,174 +0,0 @@
/*
* arch/v850/kernel/v850e_cache.c -- Cache control for V850E cache memories
*
* Copyright (C) 2003 NEC Electronics Corporation
* Copyright (C) 2003 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
/* This file implements cache control for the rather simple cache used on
some V850E CPUs, specifically the NB85E/TEG CPU-core and the V850E/ME2
CPU. V850E2 processors have their own (better) cache
implementation. */
#include <asm/entry.h>
#include <asm/cacheflush.h>
#include <asm/v850e_cache.h>
#define WAIT_UNTIL_CLEAR(value) while (value) {}
/* Set caching params via the BHC and DCC registers. */
void v850e_cache_enable (u16 bhc, u16 icc, u16 dcc)
{
unsigned long *r0_ram = (unsigned long *)R0_RAM_ADDR;
register u16 bhc_val asm ("r6") = bhc;
/* Read the instruction cache control register (ICC) and confirm
that bits 0 and 1 (TCLR0, TCLR1) are all cleared. */
WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3);
V850E_CACHE_ICC = icc;
#ifdef V850E_CACHE_DCC
/* Configure data-cache. */
V850E_CACHE_DCC = dcc;
#endif /* V850E_CACHE_DCC */
/* Configure caching for various memory regions by writing the BHC
register. The documentation says that an instruction _cannot_
enable/disable caching for the memory region in which the
instruction itself exists; to work around this, we store
appropriate instructions into the on-chip RAM area (which is never
cached), and briefly jump there to do the work. */
#ifdef V850E_CACHE_WRITE_IBS
*r0_ram++ = 0xf0720760; /* st.h r0, 0xfffff072[r0] */
#endif
*r0_ram++ = 0xf06a3760; /* st.h r6, 0xfffff06a[r0] */
*r0_ram = 0x5640006b; /* jmp [r11] */
asm ("mov hilo(1f), r11; jmp [%1]; 1:;"
:: "r" (bhc_val), "r" (R0_RAM_ADDR) : "r11");
}
static void clear_icache (void)
{
/* 1. Read the instruction cache control register (ICC) and confirm
that bits 0 and 1 (TCLR0, TCLR1) are all cleared. */
WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3);
/* 2. Read the ICC register and confirm that bit 12 (LOCK0) is
cleared. Bit 13 of the ICC register is always cleared. */
WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x1000);
/* 3. Set the TCLR0 and TCLR1 bits of the ICC register as follows,
when clearing way 0 and way 1 at the same time:
(a) Set the TCLR0 and TCLR1 bits.
(b) Read the TCLR0 and TCLR1 bits to confirm that these bits
are cleared.
(c) Perform (a) and (b) above again. */
V850E_CACHE_ICC |= 0x3;
WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3);
#ifdef V850E_CACHE_REPEAT_ICC_WRITE
/* Do it again. */
V850E_CACHE_ICC |= 0x3;
WAIT_UNTIL_CLEAR (V850E_CACHE_ICC & 0x3);
#endif
}
#ifdef V850E_CACHE_DCC
/* Flush or clear (or both) the data cache, depending on the value of FLAGS;
the procedure is the same for both, just the control bits used differ (and
both may be performed simultaneously). */
static void dcache_op (unsigned short flags)
{
/* 1. Read the data cache control register (DCC) and confirm that bits
0, 1, 4, and 5 (DC00, DC01, DC04, DC05) are all cleared. */
WAIT_UNTIL_CLEAR (V850E_CACHE_DCC & 0x33);
/* 2. Clear DCC register bit 12 (DC12), bit 13 (DC13), or both
depending on the way for which tags are to be cleared. */
V850E_CACHE_DCC &= ~0xC000;
/* 3. Set DCC register bit 0 (DC00), bit 1 (DC01) or both depending on
the way for which tags are to be cleared.
...
Set DCC register bit 4 (DC04), bit 5 (DC05), or both depending
on the way to be data flushed. */
V850E_CACHE_DCC |= flags;
/* 4. Read DCC register bit DC00, DC01 [DC04, DC05], or both depending
on the way for which tags were cleared [flushed] and confirm
that that bit is cleared. */
WAIT_UNTIL_CLEAR (V850E_CACHE_DCC & flags);
}
#endif /* V850E_CACHE_DCC */
/* Flushes the contents of the dcache to memory. */
static inline void flush_dcache (void)
{
#ifdef V850E_CACHE_DCC
/* We only need to do something if in write-back mode. */
if (V850E_CACHE_DCC & 0x0400)
dcache_op (0x30);
#endif /* V850E_CACHE_DCC */
}
/* Flushes the contents of the dcache to memory, and then clears it. */
static inline void clear_dcache (void)
{
#ifdef V850E_CACHE_DCC
/* We only need to do something if the dcache is enabled. */
if (V850E_CACHE_DCC & 0x0C00)
dcache_op (0x33);
#endif /* V850E_CACHE_DCC */
}
/* Clears the dcache without flushing to memory first. */
static inline void clear_dcache_no_flush (void)
{
#ifdef V850E_CACHE_DCC
/* We only need to do something if the dcache is enabled. */
if (V850E_CACHE_DCC & 0x0C00)
dcache_op (0x3);
#endif /* V850E_CACHE_DCC */
}
static inline void cache_exec_after_store (void)
{
flush_dcache ();
clear_icache ();
}
/* Exported functions. */
void flush_icache (void)
{
cache_exec_after_store ();
}
void flush_icache_range (unsigned long start, unsigned long end)
{
cache_exec_after_store ();
}
void flush_icache_page (struct vm_area_struct *vma, struct page *page)
{
cache_exec_after_store ();
}
void flush_icache_user_range (struct vm_area_struct *vma, struct page *page,
unsigned long adr, int len)
{
cache_exec_after_store ();
}
void flush_cache_sigtramp (unsigned long addr)
{
cache_exec_after_store ();
}

104
arch/v850/kernel/v850e_intc.c
View file

@ -1,104 +0,0 @@
/*
* arch/v850/kernel/v850e_intc.c -- V850E interrupt controller (INTC)
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/v850e_intc.h>
static void irq_nop (unsigned irq) { }
static unsigned v850e_intc_irq_startup (unsigned irq)
{
v850e_intc_clear_pending_irq (irq);
v850e_intc_enable_irq (irq);
return 0;
}
static void v850e_intc_end_irq (unsigned irq)
{
unsigned long psw, temp;
/* Clear the highest-level bit in the In-service priority register
(ISPR), to allow this interrupt (or another of the same or
lesser priority) to happen again.
The `reti' instruction normally does this automatically when the
PSW bits EP and NP are zero, but we can't always rely on reti
being used consistently to return after an interrupt (another
process can be scheduled, for instance, which can delay the
associated reti for a long time, or this process may be being
single-stepped, which uses the `dbret' instruction to return
from the kernel).
We also set the PSW EP bit, which prevents reti from also
trying to modify the ISPR itself. */
/* Get PSW and disable interrupts. */
asm volatile ("stsr psw, %0; di" : "=r" (psw));
/* We don't want to do anything for NMIs (they don't use the ISPR). */
if (! (psw & 0xC0)) {
/* Transition to `trap' state, so that an eventual real
reti instruction won't modify the ISPR. */
psw |= 0x40;
/* Fake an interrupt return, which automatically clears the
appropriate bit in the ISPR. */
asm volatile ("mov hilo(1f), %0;"
"ldsr %0, eipc; ldsr %1, eipsw;"
"reti;"
"1:"
: "=&r" (temp) : "r" (psw));
}
}
/* Initialize HW_IRQ_TYPES for INTC-controlled irqs described in array
INITS (which is terminated by an entry with the name field == 0). */
void __init v850e_intc_init_irq_types (struct v850e_intc_irq_init *inits,
struct hw_interrupt_type *hw_irq_types)
{
struct v850e_intc_irq_init *init;
for (init = inits; init->name; init++) {
unsigned i;
struct hw_interrupt_type *hwit = hw_irq_types++;
hwit->typename = init->name;
hwit->startup = v850e_intc_irq_startup;
hwit->shutdown = v850e_intc_disable_irq;
hwit->enable = v850e_intc_enable_irq;
hwit->disable = v850e_intc_disable_irq;
hwit->ack = irq_nop;
hwit->end = v850e_intc_end_irq;
/* Initialize kernel IRQ infrastructure for this interrupt. */
init_irq_handlers(init->base, init->num, init->interval, hwit);
/* Set the interrupt priorities. */
for (i = 0; i < init->num; i++) {
unsigned irq = init->base + i * init->interval;
/* If the interrupt is currently enabled (all
interrupts are initially disabled), then
assume whoever enabled it has set things up
properly, and avoid messing with it. */
if (! v850e_intc_irq_enabled (irq))
/* This write also (1) disables the
interrupt, and (2) clears any pending
interrupts. */
V850E_INTC_IC (irq)
= (V850E_INTC_IC_PR (init->priority)
| V850E_INTC_IC_MK);
}
}
}

54
arch/v850/kernel/v850e_timer_d.c
View file

@ -1,54 +0,0 @@
/*
* include/asm-v850/v850e_timer_d.c -- `Timer D' component often used
* with V850E CPUs
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/kernel.h>
#include <asm/v850e_utils.h>
#include <asm/v850e_timer_d.h>
/* Start interval timer TIMER (0-3). The timer will issue the
corresponding INTCMD interrupt RATE times per second.
This function does not enable the interrupt. */
void v850e_timer_d_configure (unsigned timer, unsigned rate)
{
unsigned divlog2, count;
/* Calculate params for timer. */
if (! calc_counter_params (
V850E_TIMER_D_BASE_FREQ, rate,
V850E_TIMER_D_TMCD_CS_MIN, V850E_TIMER_D_TMCD_CS_MAX, 16,
&divlog2, &count))
printk (KERN_WARNING
"Cannot find interval timer %d setting suitable"
" for rate of %dHz.\n"
"Using rate of %dHz instead.\n",
timer, rate,
(V850E_TIMER_D_BASE_FREQ >> divlog2) >> 16);
/* Do the actual hardware timer initialization: */
/* Enable timer. */
V850E_TIMER_D_TMCD(timer) = V850E_TIMER_D_TMCD_CAE;
/* Set clock divider. */
V850E_TIMER_D_TMCD(timer)
= V850E_TIMER_D_TMCD_CAE
| V850E_TIMER_D_TMCD_CS(divlog2);
/* Set timer compare register. */
V850E_TIMER_D_CMD(timer) = count;
/* Start counting. */
V850E_TIMER_D_TMCD(timer)
= V850E_TIMER_D_TMCD_CAE
| V850E_TIMER_D_TMCD_CS(divlog2)
| V850E_TIMER_D_TMCD_CE;
}

62
arch/v850/kernel/v850e_utils.c
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@ -1,62 +0,0 @@
/*
* include/asm-v850/v850e_utils.h -- Utility functions associated with
* V850E CPUs
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <asm/v850e_utils.h>
/* Calculate counter clock-divider and count values to attain the
desired frequency RATE from the base frequency BASE_FREQ. The
counter is expected to have a clock-divider, which can divide the
system cpu clock by a power of two value from MIN_DIVLOG2 to
MAX_DIV_LOG2, and a word-size of COUNTER_SIZE bits (the counter
counts up and resets whenever it's equal to the compare register,
generating an interrupt or whatever when it does so). The returned
values are: *DIVLOG2 -- log2 of the desired clock divider and *COUNT
-- the counter compare value to use. Returns true if it was possible
to find a reasonable value, otherwise false (and the other return
values will be set to be as good as possible). */
int calc_counter_params (unsigned long base_freq,
unsigned long rate,
unsigned min_divlog2, unsigned max_divlog2,
unsigned counter_size,
unsigned *divlog2, unsigned *count)
{
unsigned _divlog2;
int ok = 0;
/* Find the lowest clock divider setting that can represent RATE. */
for (_divlog2 = min_divlog2; _divlog2 <= max_divlog2; _divlog2++) {
/* Minimum interrupt rate possible using this divider. */
unsigned min_int_rate
= (base_freq >> _divlog2) >> counter_size;
if (min_int_rate <= rate) {
/* This setting is the highest resolution
setting that's slow enough enough to attain
RATE interrupts per second, so use it. */
ok = 1;
break;
}
}
if (_divlog2 > max_divlog2)
/* Can't find correct setting. */
_divlog2 = max_divlog2;
if (divlog2)
*divlog2 = _divlog2;
if (count)
*count = ((base_freq >> _divlog2) + rate/2) / rate;
return ok;
}

306
arch/v850/kernel/vmlinux.lds.S
View file

@ -1,306 +0,0 @@
/*
* arch/v850/vmlinux.lds.S -- kernel linker script for v850 platforms
*
* Copyright (C) 2002,03,04,05 NEC Electronics Corporation
* Copyright (C) 2002,03,04,05 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#define VMLINUX_SYMBOL(_sym_) _##_sym_
#include <asm-generic/vmlinux.lds.h>
/* For most platforms, this will define useful things like RAM addr/size. */
#include <asm/machdep.h>
/* The following macros contain the usual definitions for various data areas.
The prefix `RAMK_' is used to indicate macros suitable for kernels loaded
into RAM, and similarly `ROMK_' for ROM-resident kernels. Note that all
symbols are prefixed with an extra `_' for compatibility with the v850
toolchain. */
/* Interrupt vectors. */
#define INTV_CONTENTS \
. = ALIGN (0x10) ; \
__intv_start = . ; \
*(.intv.reset) /* Reset vector */ \
. = __intv_start + 0x10 ; \
*(.intv.common) /* Vectors common to all v850e proc */\
. = __intv_start + 0x80 ; \
*(.intv.mach) /* Machine-specific int. vectors. */ \
__intv_end = . ;
#define RODATA_CONTENTS \
. = ALIGN (16) ; \
*(.rodata) *(.rodata.*) \
*(__vermagic) /* Kernel version magic */ \
*(.rodata1) \
/* PCI quirks */ \
___start_pci_fixups_early = . ; \
*(.pci_fixup_early) \
___end_pci_fixups_early = . ; \
___start_pci_fixups_header = . ; \
*(.pci_fixup_header) \
___end_pci_fixups_header = . ; \
___start_pci_fixups_final = . ; \
*(.pci_fixup_final) \
___end_pci_fixups_final = . ; \
___start_pci_fixups_enable = . ; \
*(.pci_fixup_enable) \
___end_pci_fixups_enable = . ; \
/* Kernel symbol table: Normal symbols */ \
___start___ksymtab = .; \
*(__ksymtab) \
___stop___ksymtab = .; \
/* Kernel symbol table: GPL-only symbols */ \
___start___ksymtab_gpl = .; \
*(__ksymtab_gpl) \
___stop___ksymtab_gpl = .; \
/* Kernel symbol table: GPL-future symbols */ \
___start___ksymtab_gpl_future = .; \
*(__ksymtab_gpl_future) \
___stop___ksymtab_gpl_future = .; \
/* Kernel symbol table: strings */ \
*(__ksymtab_strings) \
/* Kernel symbol table: Normal symbols */ \
___start___kcrctab = .; \
*(__kcrctab) \
___stop___kcrctab = .; \
/* Kernel symbol table: GPL-only symbols */ \
___start___kcrctab_gpl = .; \
*(__kcrctab_gpl) \
___stop___kcrctab_gpl = .; \
/* Kernel symbol table: GPL-future symbols */ \
___start___kcrctab_gpl_future = .; \
*(__kcrctab_gpl_future) \
___stop___kcrctab_gpl_future = .; \
/* Built-in module parameters */ \
. = ALIGN (4) ; \
___start___param = .; \
*(__param) \
___stop___param = .;
/* Kernel text segment, and some constant data areas. */
#define TEXT_CONTENTS \
_text = .; \
__stext = . ; \
TEXT_TEXT \
SCHED_TEXT \
*(.exit.text) /* 2.5 convention */ \
*(.text.exit) /* 2.4 convention */ \
*(.text.lock) \
*(.exitcall.exit) \
__real_etext = . ; /* There may be data after here. */ \
RODATA_CONTENTS \
. = ALIGN (4) ; \
*(.call_table_data) \
*(.call_table_text) \
. = ALIGN (16) ; /* Exception table. */ \
___start___ex_table = . ; \
*(__ex_table) \
___stop___ex_table = . ; \
. = ALIGN (4) ; \
__etext = . ;
/* Kernel data segment. */
#define DATA_CONTENTS \
__sdata = . ; \
DATA_DATA \
EXIT_DATA /* 2.5 convention */ \
*(.data.exit) /* 2.4 convention */ \
. = ALIGN (16) ; \
*(.data.cacheline_aligned) \
. = ALIGN (0x2000) ; \
*(.data.init_task) \
. = ALIGN (0x2000) ; \
__edata = . ;
/* Kernel BSS segment. */
#define BSS_CONTENTS \
__sbss = . ; \
*(.bss) \
*(COMMON) \
. = ALIGN (4) ; \
__init_stack_end = . ; \
__ebss = . ;
/* `initcall' tables. */
#define INITCALL_CONTENTS \
. = ALIGN (16) ; \
___setup_start = . ; \
*(.init.setup) /* 2.5 convention */ \
*(.setup.init) /* 2.4 convention */ \
___setup_end = . ; \
___initcall_start = . ; \
*(.initcall.init) \
INITCALLS \
. = ALIGN (4) ; \
___initcall_end = . ; \
___con_initcall_start = .; \
*(.con_initcall.init) \
___con_initcall_end = .;
/* Contents of `init' section for a kernel that's loaded into RAM. */
#define RAMK_INIT_CONTENTS \
RAMK_INIT_CONTENTS_NO_END \
__init_end = . ;
/* Same as RAMK_INIT_CONTENTS, but doesn't define the `__init_end' symbol. */
#define RAMK_INIT_CONTENTS_NO_END \
. = ALIGN (4096) ; \
__init_start = . ; \
__sinittext = .; \
INIT_TEXT /* 2.5 convention */ \
__einittext = .; \
INIT_DATA \
*(.text.init) /* 2.4 convention */ \
*(.data.init) \
INITCALL_CONTENTS \
INITRAMFS_CONTENTS
/* The contents of `init' section for a ROM-resident kernel which
should go into RAM. */
#define ROMK_INIT_RAM_CONTENTS \
. = ALIGN (4096) ; \
__init_start = . ; \
INIT_DATA /* 2.5 convention */ \
*(.data.init) /* 2.4 convention */ \
__init_end = . ; \
. = ALIGN (4096) ;
/* The contents of `init' section for a ROM-resident kernel which
should go into ROM. */
#define ROMK_INIT_ROM_CONTENTS \
_sinittext = .; \
INIT_TEXT /* 2.5 convention */ \
_einittext = .; \
*(.text.init) /* 2.4 convention */ \
INITCALL_CONTENTS \
INITRAMFS_CONTENTS
/* A root filesystem image, for kernels with an embedded root filesystem. */
#define ROOT_FS_CONTENTS \
__root_fs_image_start = . ; \
*(.root) \
__root_fs_image_end = . ;
#ifdef CONFIG_BLK_DEV_INITRD
/* The initramfs archive. */
#define INITRAMFS_CONTENTS \
. = ALIGN (4) ; \
___initramfs_start = . ; \
*(.init.ramfs) \
___initramfs_end = . ;
#endif
/* Where the initial bootmap (bitmap for the boot-time memory allocator)
should be place. */
#define BOOTMAP_CONTENTS \
. = ALIGN (4096) ; \
__bootmap = . ; \
. = . + 4096 ; /* enough for 128MB. */
/* The contents of a `typical' kram area for a kernel in RAM. */
#define RAMK_KRAM_CONTENTS \
__kram_start = . ; \
TEXT_CONTENTS \
DATA_CONTENTS \
BSS_CONTENTS \
RAMK_INIT_CONTENTS \
__kram_end = . ; \
BOOTMAP_CONTENTS
/* Define output sections normally used for a ROM-resident kernel.
ROM and RAM should be appropriate memory areas to use for kernel
ROM and RAM data. This assumes that ROM starts at 0 (and thus can
hold the interrupt vectors). */
#define ROMK_SECTIONS(ROM, RAM) \
.rom : { \
INTV_CONTENTS \
TEXT_CONTENTS \
ROMK_INIT_ROM_CONTENTS \
ROOT_FS_CONTENTS \
} > ROM \
\
__rom_copy_src_start = . ; \
\
.data : { \
__kram_start = . ; \
__rom_copy_dst_start = . ; \
DATA_CONTENTS \
ROMK_INIT_RAM_CONTENTS \
__rom_copy_dst_end = . ; \
} > RAM AT> ROM \
\
.bss ALIGN (4) : { \
BSS_CONTENTS \
__kram_end = . ; \
BOOTMAP_CONTENTS \
} > RAM
/* The 32-bit variable `jiffies' is just the lower 32-bits of `jiffies_64'. */
_jiffies = _jiffies_64 ;
/* Include an appropriate platform-dependent linker-script (which
usually should use the above macros to do most of the work). */
#ifdef CONFIG_V850E_SIM
# include "sim.ld"
#endif
#ifdef CONFIG_V850E2_SIM85E2
# include "sim85e2.ld"
#endif
#ifdef CONFIG_V850E2_FPGA85E2C
# include "fpga85e2c.ld"
#endif
#ifdef CONFIG_V850E2_ANNA
# ifdef CONFIG_ROM_KERNEL
# include "anna-rom.ld"
# else
# include "anna.ld"
# endif
#endif
#ifdef CONFIG_V850E_AS85EP1
# ifdef CONFIG_ROM_KERNEL
# include "as85ep1-rom.ld"
# else
# include "as85ep1.ld"
# endif
#endif
#ifdef CONFIG_RTE_CB_MA1
# ifdef CONFIG_ROM_KERNEL
# include "rte_ma1_cb-rom.ld"
# else
# include "rte_ma1_cb.ld"
# endif
#endif
#ifdef CONFIG_RTE_CB_NB85E
# ifdef CONFIG_ROM_KERNEL
# include "rte_nb85e_cb-rom.ld"
# elif defined(CONFIG_RTE_CB_MULTI)
# include "rte_nb85e_cb-multi.ld"
# else
# include "rte_nb85e_cb.ld"
# endif
#endif
#ifdef CONFIG_RTE_CB_ME2
# include "rte_me2_cb.ld"
#endif

6
arch/v850/lib/Makefile
View file

@ -1,6 +0,0 @@
#
# arch/v850/lib/Makefile
#
lib-y = ashrdi3.o ashldi3.o lshrdi3.o muldi3.o negdi2.o \
checksum.o memcpy.o memset.o

62
arch/v850/lib/ashldi3.c
View file

@ -1,62 +0,0 @@
/* ashldi3.c extracted from gcc-2.95.2/libgcc2.c which is: */
/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#define BITS_PER_UNIT 8
typedef int SItype __attribute__ ((mode (SI)));
typedef unsigned int USItype __attribute__ ((mode (SI)));
typedef int DItype __attribute__ ((mode (DI)));
typedef int word_type __attribute__ ((mode (__word__)));
struct DIstruct {SItype high, low;};
typedef union
{
struct DIstruct s;
DItype ll;
} DIunion;
DItype
__ashldi3 (DItype u, word_type b)
{
DIunion w;
word_type bm;
DIunion uu;
if (b == 0)
return u;
uu.ll = u;
bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
if (bm <= 0)
{
w.s.low = 0;
w.s.high = (USItype)uu.s.low << -bm;
}
else
{
USItype carries = (USItype)uu.s.low >> bm;
w.s.low = (USItype)uu.s.low << b;
w.s.high = ((USItype)uu.s.high << b) | carries;
}
return w.ll;
}

63
arch/v850/lib/ashrdi3.c
View file

@ -1,63 +0,0 @@
/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#define BITS_PER_UNIT 8
typedef int SItype __attribute__ ((mode (SI)));
typedef unsigned int USItype __attribute__ ((mode (SI)));
typedef int DItype __attribute__ ((mode (DI)));
typedef int word_type __attribute__ ((mode (__word__)));
struct DIstruct {SItype high, low;};
typedef union
{
struct DIstruct s;
DItype ll;
} DIunion;
DItype
__ashrdi3 (DItype u, word_type b)
{
DIunion w;
word_type bm;
DIunion uu;
if (b == 0)
return u;
uu.ll = u;
bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
if (bm <= 0)
{
/* w.s.high = 1..1 or 0..0 */
w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1);
w.s.low = uu.s.high >> -bm;
}
else
{
USItype carries = (USItype)uu.s.high << bm;
w.s.high = uu.s.high >> b;
w.s.low = ((USItype)uu.s.low >> b) | carries;
}
return w.ll;
}

155
arch/v850/lib/checksum.c
View file

@ -1,155 +0,0 @@
/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
* interface as the means of communication with the user level.
*
* MIPS specific IP/TCP/UDP checksumming routines
*
* Authors: Ralf Baechle, <ralf@waldorf-gmbh.de>
* Lots of code moved from tcp.c and ip.c; see those files
* for more names.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* $Id: checksum.c,v 1.1 2002/09/28 14:58:40 gerg Exp $
*/
#include <net/checksum.h>
#include <linux/module.h>
#include <linux/types.h>
#include <asm/byteorder.h>
#include <asm/string.h>
#include <asm/uaccess.h>
static inline unsigned short from32to16 (unsigned long sum)
{
unsigned int result;
/*
%0 %1
hsw %1, %0 H L L H
add %1, %0 H L H+L+C H+L
*/
asm ("hsw %1, %0; add %1, %0" : "=&r" (result) : "r" (sum));
return result >> 16;
}
static inline unsigned int do_csum(const unsigned char * buff, int len)
{
int odd, count;
unsigned int result = 0;
if (len <= 0)
goto out;
odd = 1 & (unsigned long) buff;
if (odd) {
result = be16_to_cpu(*buff);
len--;
buff++;
}
count = len >> 1; /* nr of 16-bit words.. */
if (count) {
if (2 & (unsigned long) buff) {
result += *(unsigned short *) buff;
count--;
len -= 2;
buff += 2;
}
count >>= 1; /* nr of 32-bit words.. */
if (count) {
unsigned int carry = 0;
do {
unsigned int w = *(unsigned int *) buff;
count--;
buff += 4;
result += carry;
result += w;
carry = (w > result);
} while (count);
result += carry;
result = (result & 0xffff) + (result >> 16);
}
if (len & 2) {
result += *(unsigned short *) buff;
buff += 2;
}
}
if (len & 1)
result += le16_to_cpu(*buff);
result = from32to16(result);
if (odd)
result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
out:
return result;
}
/*
* This is a version of ip_compute_csum() optimized for IP headers,
* which always checksum on 4 octet boundaries.
*/
__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
{
return (__force __sum16)~do_csum(iph,ihl*4);
}
/*
* this routine is used for miscellaneous IP-like checksums, mainly
* in icmp.c
*/
__sum16 ip_compute_csum(const void *buff, int len)
{
return (__force __sum16)~do_csum(buff,len);
}
/*
* computes a partial checksum, e.g. for TCP/UDP fragments
*/
__wsum csum_partial(const void *buff, int len, __wsum sum)
{
unsigned int result = do_csum(buff, len);
/* add in old sum, and carry.. */
result += (__force u32)sum;
if ((__force u32)sum > result)
result += 1;
return (__force __wsum)result;
}
EXPORT_SYMBOL(csum_partial);
/*
* copy while checksumming, otherwise like csum_partial
*/
__wsum csum_partial_copy_nocheck(const void *src, void *dst,
int len, __wsum sum)
{
/*
* It's 2:30 am and I don't feel like doing it real ...
* This is lots slower than the real thing (tm)
*/
sum = csum_partial(src, len, sum);
memcpy(dst, src, len);
return sum;
}
/*
* Copy from userspace and compute checksum. If we catch an exception
* then zero the rest of the buffer.
*/
__wsum csum_partial_copy_from_user (const void *src,
void *dst,
int len, __wsum sum,
int *err_ptr)
{
int missing;
missing = copy_from_user(dst, src, len);
if (missing) {
memset(dst + len - missing, 0, missing);
*err_ptr = -EFAULT;
}
return csum_partial(dst, len, sum);
}

62
arch/v850/lib/lshrdi3.c
View file

@ -1,62 +0,0 @@
/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#define BITS_PER_UNIT 8
typedef int SItype __attribute__ ((mode (SI)));
typedef unsigned int USItype __attribute__ ((mode (SI)));
typedef int DItype __attribute__ ((mode (DI)));
typedef int word_type __attribute__ ((mode (__word__)));
struct DIstruct {SItype high, low;};
typedef union
{
struct DIstruct s;
DItype ll;
} DIunion;
DItype
__lshrdi3 (DItype u, word_type b)
{
DIunion w;
word_type bm;
DIunion uu;
if (b == 0)
return u;
uu.ll = u;
bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
if (bm <= 0)
{
w.s.high = 0;
w.s.low = (USItype)uu.s.high >> -bm;
}
else
{
USItype carries = (USItype)uu.s.high << bm;
w.s.high = (USItype)uu.s.high >> b;
w.s.low = ((USItype)uu.s.low >> b) | carries;
}
return w.ll;
}

92
arch/v850/lib/memcpy.c
View file

@ -1,92 +0,0 @@
/*
* arch/v850/lib/memcpy.c -- Memory copying
*
* Copyright (C) 2001,02 NEC Corporation
* Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/types.h>
#include <asm/string.h>
#define CHUNK_SIZE 32 /* bytes */
#define CHUNK_ALIGNED(addr) (((unsigned long)addr & 0x3) == 0)
/* Note that this macro uses 8 call-clobbered registers (not including
R1), which are few enough so that the following functions don't need
to spill anything to memory. It also uses R1, which is nominally
reserved for the assembler, but here it should be OK. */
#define COPY_CHUNK(src, dst) \
asm ("mov %0, ep;" \
"sld.w 0[ep], r1; sld.w 4[ep], r12;" \
"sld.w 8[ep], r13; sld.w 12[ep], r14;" \
"sld.w 16[ep], r15; sld.w 20[ep], r17;" \
"sld.w 24[ep], r18; sld.w 28[ep], r19;" \
"mov %1, ep;" \
"sst.w r1, 0[ep]; sst.w r12, 4[ep];" \
"sst.w r13, 8[ep]; sst.w r14, 12[ep];" \
"sst.w r15, 16[ep]; sst.w r17, 20[ep];" \
"sst.w r18, 24[ep]; sst.w r19, 28[ep]" \
:: "r" (src), "r" (dst) \
: "r1", "r12", "r13", "r14", "r15", \
"r17", "r18", "r19", "ep", "memory");
void *memcpy (void *dst, const void *src, __kernel_size_t size)
{
char *_dst = dst;
const char *_src = src;
if (size >= CHUNK_SIZE && CHUNK_ALIGNED(_src) && CHUNK_ALIGNED(_dst)) {
/* Copy large blocks efficiently. */
unsigned count;
for (count = size / CHUNK_SIZE; count; count--) {
COPY_CHUNK (_src, _dst);
_src += CHUNK_SIZE;
_dst += CHUNK_SIZE;
}
size %= CHUNK_SIZE;
}
if (size > 0)
do
*_dst++ = *_src++;
while (--size);
return dst;
}
void *memmove (void *dst, const void *src, __kernel_size_t size)
{
if ((unsigned long)dst < (unsigned long)src
|| (unsigned long)src + size < (unsigned long)dst)
return memcpy (dst, src, size);
else {
char *_dst = dst + size;
const char *_src = src + size;
if (size >= CHUNK_SIZE
&& CHUNK_ALIGNED (_src) && CHUNK_ALIGNED (_dst))
{
/* Copy large blocks efficiently. */
unsigned count;
for (count = size / CHUNK_SIZE; count; count--) {
_src -= CHUNK_SIZE;
_dst -= CHUNK_SIZE;
COPY_CHUNK (_src, _dst);
}
size %= CHUNK_SIZE;
}
if (size > 0)
do
*--_dst = *--_src;
while (--size);
return _dst;
}
}

68
arch/v850/lib/memset.c
View file

@ -1,68 +0,0 @@
/*
* arch/v850/lib/memset.c -- Memory initialization
*
* Copyright (C) 2001,02,04 NEC Corporation
* Copyright (C) 2001,02,04 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#include <linux/types.h>
void *memset (void *dst, int val, __kernel_size_t count)
{
if (count) {
register unsigned loop;
register void *ptr asm ("ep") = dst;
/* replicate VAL into a long. */
val &= 0xff;
val |= val << 8;
val |= val << 16;
/* copy initial unaligned bytes. */
if ((long)ptr & 1) {
*(char *)ptr = val;
ptr = (void *)((char *)ptr + 1);
count--;
}
if (count > 2 && ((long)ptr & 2)) {
*(short *)ptr = val;
ptr = (void *)((short *)ptr + 1);
count -= 2;
}
/* 32-byte copying loop. */
for (loop = count / 32; loop; loop--) {
asm ("sst.w %0, 0[ep]; sst.w %0, 4[ep];"
"sst.w %0, 8[ep]; sst.w %0, 12[ep];"
"sst.w %0, 16[ep]; sst.w %0, 20[ep];"
"sst.w %0, 24[ep]; sst.w %0, 28[ep]"
:: "r" (val) : "memory");
ptr += 32;
}
count %= 32;
/* long copying loop. */
for (loop = count / 4; loop; loop--) {
*(long *)ptr = val;
ptr = (void *)((long *)ptr + 1);
}
count %= 4;
/* finish up with any trailing bytes. */
if (count & 2) {
*(short *)ptr = val;
ptr = (void *)((short *)ptr + 1);
}
if (count & 1) {
*(char *)ptr = val;
}
}
return dst;
}

61
arch/v850/lib/muldi3.c
View file

@ -1,61 +0,0 @@
/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and
gcc-2.7.2.3/longlong.h which is: */
/* Copyright (C) 1989, 1992, 1993, 1994, 1995, 2001 Free Software Foundation, Inc.
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#define umul_ppmm(w1, w0, u, v) \
__asm__ ("mulu %3, %0, %1" \
: "=r" ((USItype)(w0)), \
"=r" ((USItype)(w1)) \
: "%0" ((USItype)(u)), \
"r" ((USItype)(v)))
#define __umulsidi3(u, v) \
({DIunion __w; \
umul_ppmm (__w.s.high, __w.s.low, u, v); \
__w.ll; })
typedef int SItype __attribute__ ((mode (SI)));
typedef unsigned int USItype __attribute__ ((mode (SI)));
typedef int DItype __attribute__ ((mode (DI)));
typedef int word_type __attribute__ ((mode (__word__)));
struct DIstruct {SItype high, low;};
typedef union
{
struct DIstruct s;
DItype ll;
} DIunion;
DItype
__muldi3 (DItype u, DItype v)
{
DIunion w;
DIunion uu, vv;
uu.ll = u,
vv.ll = v;
w.ll = __umulsidi3 (uu.s.low, vv.s.low);
w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
+ (USItype) uu.s.high * (USItype) vv.s.low);
return w.ll;
}

25
arch/v850/lib/negdi2.c
View file

@ -1,25 +0,0 @@
/*
* arch/v850/lib/negdi2.c -- 64-bit negation
*
* Copyright (C) 2001 NEC Corporation
* Copyright (C) 2001 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
typedef int DItype __attribute__ ((mode (DI)));
DItype __negdi2 (DItype x)
{
__asm__ __volatile__
("not r6, r10;"
"add 1, r10;"
"setf c, r6;"
"not r7, r11;"
"add r6, r11"
::: "r6", "r7", "r10", "r11");
}

16
drivers/serial/Kconfig
View file

@ -942,22 +942,6 @@ config SERIAL_IP22_ZILOG_CONSOLE
depends on SERIAL_IP22_ZILOG=y
select SERIAL_CORE_CONSOLE
config V850E_UART
bool "NEC V850E on-chip UART support"
depends on V850E_MA1 || V850E_ME2 || V850E_TEG || V850E2_ANNA || V850E_AS85EP1
select SERIAL_CORE
default y
config V850E_UARTB
bool
depends on V850E_UART && V850E_ME2
default y
config V850E_UART_CONSOLE
bool "Use NEC V850E on-chip UART for console"
depends on V850E_UART
select SERIAL_CORE_CONSOLE
config SERIAL_SH_SCI
tristate "SuperH SCI(F) serial port support"
depends on SUPERH || H8300

2
drivers/watchdog/Kconfig
View file

@ -788,8 +788,6 @@ config WATCHDOG_RIO
machines. The watchdog timeout period is normally one minute but
can be changed with a boot-time parameter.
# V850 Architecture
# XTENSA Architecture
#

2
drivers/watchdog/Makefile
View file

@ -119,8 +119,6 @@ obj-$(CONFIG_SH_WDT) += shwdt.o
# SPARC64 Architecture
# V850 Architecture
# XTENSA Architecture
# Architecture Independant

1
include/asm-v850/Kbuild
View file

@ -1 +0,0 @@
include include/asm-generic/Kbuild.asm

21
include/asm-v850/a.out.h
View file

@ -1,21 +0,0 @@
#ifndef __V850_A_OUT_H__
#define __V850_A_OUT_H__
struct exec
{
unsigned long a_info; /* Use macros N_MAGIC, etc for access */
unsigned a_text; /* length of text, in bytes */
unsigned a_data; /* length of data, in bytes */
unsigned a_bss; /* length of uninitialized data area for file, in bytes */
unsigned a_syms; /* length of symbol table data in file, in bytes */
unsigned a_entry; /* start address */
unsigned a_trsize; /* length of relocation info for text, in bytes */
unsigned a_drsize; /* length of relocation info for data, in bytes */
};
#define N_TRSIZE(a) ((a).a_trsize)
#define N_DRSIZE(a) ((a).a_drsize)
#define N_SYMSIZE(a) ((a).a_syms)
#endif /* __V850_A_OUT_H__ */

137
include/asm-v850/anna.h
View file

@ -1,137 +0,0 @@
/*
* include/asm-v850/anna.h -- Anna V850E2 evaluation cpu chip/board
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_ANNA_H__
#define __V850_ANNA_H__
#include <asm/v850e2.h> /* Based on V850E2 core. */
#define CPU_MODEL "v850e2/anna"
#define CPU_MODEL_LONG "NEC V850E2/Anna"
#define PLATFORM "anna"
#define PLATFORM_LONG "NEC/Midas lab V850E2/Anna evaluation board"
#define CPU_CLOCK_FREQ 200000000 /* 200MHz */
#define SYS_CLOCK_FREQ 33300000 /* 33.3MHz */
/* 1MB of static RAM. This memory is mirrored 64 times. */
#define SRAM_ADDR 0x04000000
#define SRAM_SIZE 0x00100000 /* 1MB */
/* 64MB of DRAM. */
#define SDRAM_ADDR 0x08000000
#define SDRAM_SIZE 0x04000000 /* 64MB */
/* For <asm/page.h> */
#define PAGE_OFFSET SRAM_ADDR
/* We use on-chip RAM, for a few miscellaneous variables that must be
accessible using a load instruction relative to R0. The Anna chip has
128K of `dLB' ram nominally located at 0xFFF00000, but it's mirrored
every 128K, so we can use the `last mirror' (except for the portion at
the top which is overridden by I/O space). In addition, the early
sample chip we're using has lots of memory errors in the dLB ram, so we
use a specially chosen location that has at least 20 bytes of contiguous
valid memory (xxxF0020 - xxxF003F). */
#define R0_RAM_ADDR 0xFFFF8020
/* Anna specific control registers. */
#define ANNA_ILBEN_ADDR 0xFFFFF7F2
#define ANNA_ILBEN (*(volatile u16 *)ANNA_ILBEN_ADDR)
/* I/O port P0-P3. */
/* Direct I/O. Bits 0-7 are pins Pn0-Pn7. */
#define ANNA_PORT_IO_ADDR(n) (0xFFFFF400 + (n) * 2)
#define ANNA_PORT_IO(n) (*(volatile u8 *)ANNA_PORT_IO_ADDR(n))
/* Port mode (for direct I/O, 0 = output, 1 = input). */
#define ANNA_PORT_PM_ADDR(n) (0xFFFFF410 + (n) * 2)
#define ANNA_PORT_PM(n) (*(volatile u8 *)ANNA_PORT_PM_ADDR(n))
/* Hardware-specific interrupt numbers (in the kernel IRQ namespace). */
#define IRQ_INTP(n) (n) /* Pnnn (pin) interrupts 0-15 */
#define IRQ_INTP_NUM 16
#define IRQ_INTOV(n) (0x10 + (n)) /* 0-2 */
#define IRQ_INTOV_NUM 2
#define IRQ_INTCCC(n) (0x12 + (n))
#define IRQ_INTCCC_NUM 4
#define IRQ_INTCMD(n) (0x16 + (n)) /* interval timer interrupts 0-5 */
#define IRQ_INTCMD_NUM 6
#define IRQ_INTDMA(n) (0x1C + (n)) /* DMA interrupts 0-3 */
#define IRQ_INTDMA_NUM 4
#define IRQ_INTDMXER 0x20
#define IRQ_INTSRE(n) (0x21 + (n)*3) /* UART 0-1 reception error */
#define IRQ_INTSRE_NUM 2
#define IRQ_INTSR(n) (0x22 + (n)*3) /* UART 0-1 reception completion */
#define IRQ_INTSR_NUM 2
#define IRQ_INTST(n) (0x23 + (n)*3) /* UART 0-1 transmission completion */
#define IRQ_INTST_NUM 2
#define NUM_CPU_IRQS 64
#ifndef __ASSEMBLY__
/* Initialize chip interrupts. */
extern void anna_init_irqs (void);
#endif
/* Anna UART details (basically the same as the V850E/MA1, but 2 channels). */
#define V850E_UART_NUM_CHANNELS 2
#define V850E_UART_BASE_FREQ (SYS_CLOCK_FREQ / 2)
#define V850E_UART_CHIP_NAME "V850E2/NA85E2A"
/* This is the UART channel that's actually connected on the board. */
#define V850E_UART_CONSOLE_CHANNEL 1
/* This is a function that gets called before configuring the UART. */
#define V850E_UART_PRE_CONFIGURE anna_uart_pre_configure
#ifndef __ASSEMBLY__
extern void anna_uart_pre_configure (unsigned chan,
unsigned cflags, unsigned baud);
#endif
/* This board supports RTS/CTS for the on-chip UART, but only for channel 1. */
/* CTS for UART channel 1 is pin P37 (bit 7 of port 3). */
#define V850E_UART_CTS(chan) ((chan) == 1 ? !(ANNA_PORT_IO(3) & 0x80) : 1)
/* RTS for UART channel 1 is pin P07 (bit 7 of port 0). */
#define V850E_UART_SET_RTS(chan, val) \
do { \
if (chan == 1) { \
unsigned old = ANNA_PORT_IO(0); \
if (val) \
ANNA_PORT_IO(0) = old & ~0x80; \
else \
ANNA_PORT_IO(0) = old | 0x80; \
} \
} while (0)
/* Timer C details. */
#define V850E_TIMER_C_BASE_ADDR 0xFFFFF600
/* Timer D details (the Anna actually has 5 of these; should change later). */
#define V850E_TIMER_D_BASE_ADDR 0xFFFFF540
#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0)
#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x2)
#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4)
#define V850E_TIMER_D_BASE_FREQ SYS_CLOCK_FREQ
#define V850E_TIMER_D_TMCD_CS_MIN 1 /* min 2^1 divider */
#endif /* __V850_ANNA_H__ */

152
include/asm-v850/as85ep1.h
View file

@ -1,152 +0,0 @@
/*
* include/asm-v850/as85ep1.h -- AS85EP1 evaluation CPU chip/board
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_AS85EP1_H__
#define __V850_AS85EP1_H__
#include <asm/v850e.h>
#define CPU_MODEL "as85ep1"
#define CPU_MODEL_LONG "NEC V850E/AS85EP1"
#define PLATFORM "AS85EP1"
#define PLATFORM_LONG "NEC V850E/AS85EP1 evaluation board"
#define CPU_CLOCK_FREQ 96000000 /* 96MHz */
#define SYS_CLOCK_FREQ CPU_CLOCK_FREQ
/* 1MB of static RAM. */
#define SRAM_ADDR 0x00400000
#define SRAM_SIZE 0x00100000 /* 1MB */
/* About 58MB of DRAM. This can actually be at one of two positions,
determined by jump JP3; we have to use the first position because the
second is partially out of processor instruction addressing range
(though in the second position there's actually 64MB available). */
#define SDRAM_ADDR 0x00600000
#define SDRAM_SIZE 0x039F8000 /* approx 58MB */
/* For <asm/page.h> */
#define PAGE_OFFSET SRAM_ADDR
/* We use on-chip RAM, for a few miscellaneous variables that must be
accessible using a load instruction relative to R0. The AS85EP1 chip
16K of internal RAM located slightly before I/O space. */
#define R0_RAM_ADDR 0xFFFF8000
/* AS85EP1 specific control registers. */
#define AS85EP1_CSC_ADDR(n) (0xFFFFF060 + (n) * 2)
#define AS85EP1_CSC(n) (*(volatile u16 *)AS85EP1_CSC_ADDR(n))
#define AS85EP1_BSC_ADDR 0xFFFFF066
#define AS85EP1_BSC (*(volatile u16 *)AS85EP1_BSC_ADDR)
#define AS85EP1_BCT_ADDR(n) (0xFFFFF480 + (n) * 2)
#define AS85EP1_BCT(n) (*(volatile u16 *)AS85EP1_BCT_ADDR(n))
#define AS85EP1_DWC_ADDR(n) (0xFFFFF484 + (n) * 2)
#define AS85EP1_DWC(n) (*(volatile u16 *)AS85EP1_DWC_ADDR(n))
#define AS85EP1_BCC_ADDR 0xFFFFF488
#define AS85EP1_BCC (*(volatile u16 *)AS85EP1_BCC_ADDR)
#define AS85EP1_ASC_ADDR 0xFFFFF48A
#define AS85EP1_ASC (*(volatile u16 *)AS85EP1_ASC_ADDR)
#define AS85EP1_BCP_ADDR 0xFFFFF48C
#define AS85EP1_BCP (*(volatile u16 *)AS85EP1_BCP_ADDR)
#define AS85EP1_LBS_ADDR 0xFFFFF48E
#define AS85EP1_LBS (*(volatile u16 *)AS85EP1_LBS_ADDR)
#define AS85EP1_BMC_ADDR 0xFFFFF498
#define AS85EP1_BMC (*(volatile u16 *)AS85EP1_BMC_ADDR)
#define AS85EP1_PRC_ADDR 0xFFFFF49A
#define AS85EP1_PRC (*(volatile u16 *)AS85EP1_PRC_ADDR)
#define AS85EP1_SCR_ADDR(n) (0xFFFFF4A0 + (n) * 4)
#define AS85EP1_SCR(n) (*(volatile u16 *)AS85EP1_SCR_ADDR(n))
#define AS85EP1_RFS_ADDR(n) (0xFFFFF4A2 + (n) * 4)
#define AS85EP1_RFS(n) (*(volatile u16 *)AS85EP1_RFS_ADDR(n))
#define AS85EP1_IRAMM_ADDR 0xFFFFF80A
#define AS85EP1_IRAMM (*(volatile u8 *)AS85EP1_IRAMM_ADDR)
/* I/O port P0-P13. */
/* Direct I/O. Bits 0-7 are pins Pn0-Pn7. */
#define AS85EP1_PORT_IO_ADDR(n) (0xFFFFF400 + (n) * 2)
#define AS85EP1_PORT_IO(n) (*(volatile u8 *)AS85EP1_PORT_IO_ADDR(n))
/* Port mode (for direct I/O, 0 = output, 1 = input). */
#define AS85EP1_PORT_PM_ADDR(n) (0xFFFFF420 + (n) * 2)
#define AS85EP1_PORT_PM(n) (*(volatile u8 *)AS85EP1_PORT_PM_ADDR(n))
/* Port mode control (0 = direct I/O mode, 1 = alternative I/O mode). */
#define AS85EP1_PORT_PMC_ADDR(n) (0xFFFFF440 + (n) * 2)
#define AS85EP1_PORT_PMC(n) (*(volatile u8 *)AS85EP1_PORT_PMC_ADDR(n))
/* Hardware-specific interrupt numbers (in the kernel IRQ namespace). */
#define IRQ_INTCCC(n) (0x0C + (n))
#define IRQ_INTCCC_NUM 8
#define IRQ_INTCMD(n) (0x14 + (n)) /* interval timer interrupts 0-5 */
#define IRQ_INTCMD_NUM 6
#define IRQ_INTSRE(n) (0x1E + (n)*3) /* UART 0-1 reception error */
#define IRQ_INTSRE_NUM 2
#define IRQ_INTSR(n) (0x1F + (n)*3) /* UART 0-1 reception completion */
#define IRQ_INTSR_NUM 2
#define IRQ_INTST(n) (0x20 + (n)*3) /* UART 0-1 transmission completion */
#define IRQ_INTST_NUM 2
#define NUM_CPU_IRQS 64
#ifndef __ASSEMBLY__
/* Initialize chip interrupts. */
extern void as85ep1_init_irqs (void);
#endif
/* AS85EP1 UART details (basically the same as the V850E/MA1, but 2 channels). */
#define V850E_UART_NUM_CHANNELS 2
#define V850E_UART_BASE_FREQ (SYS_CLOCK_FREQ / 4)
#define V850E_UART_CHIP_NAME "V850E/NA85E"
/* This is a function that gets called before configuring the UART. */
#define V850E_UART_PRE_CONFIGURE as85ep1_uart_pre_configure
#ifndef __ASSEMBLY__
extern void as85ep1_uart_pre_configure (unsigned chan,
unsigned cflags, unsigned baud);
#endif
/* This board supports RTS/CTS for the on-chip UART, but only for channel 1. */
/* CTS for UART channel 1 is pin P54 (bit 4 of port 5). */
#define V850E_UART_CTS(chan) ((chan) == 1 ? !(AS85EP1_PORT_IO(5) & 0x10) : 1)
/* RTS for UART channel 1 is pin P53 (bit 3 of port 5). */
#define V850E_UART_SET_RTS(chan, val) \
do { \
if (chan == 1) { \
unsigned old = AS85EP1_PORT_IO(5); \
if (val) \
AS85EP1_PORT_IO(5) = old & ~0x8; \
else \
AS85EP1_PORT_IO(5) = old | 0x8; \
} \
} while (0)
/* Timer C details. */
#define V850E_TIMER_C_BASE_ADDR 0xFFFFF600
/* Timer D details (the AS85EP1 actually has 5 of these; should change later). */
#define V850E_TIMER_D_BASE_ADDR 0xFFFFF540
#define V850E_TIMER_D_TMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x0)
#define V850E_TIMER_D_CMD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x2)
#define V850E_TIMER_D_TMCD_BASE_ADDR (V850E_TIMER_D_BASE_ADDR + 0x4)
#define V850E_TIMER_D_BASE_FREQ SYS_CLOCK_FREQ
#define V850E_TIMER_D_TMCD_CS_MIN 2 /* min 2^2 divider */
#endif /* __V850_AS85EP1_H__ */

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/*
* include/asm-v850/asm.h -- Macros for writing assembly code
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#define G_ENTRY(name) \
.balign 4; \
.globl name; \
.type name,@function; \
name
#define G_DATA(name) \
.globl name; \
.type name,@object; \
name
#define END(name) \
.size name,.-name
#define L_ENTRY(name) \
.balign 4; \
.type name,@function; \
name
#define L_DATA(name) \
.type name,@object; \
name

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include/asm-v850/atomic.h
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/*
* include/asm-v850/atomic.h -- Atomic operations
*
* Copyright (C) 2001,02 NEC Corporation
* Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_ATOMIC_H__
#define __V850_ATOMIC_H__
#include <asm/system.h>
#ifdef CONFIG_SMP
#error SMP not supported
#endif
typedef struct { int counter; } atomic_t;
#define ATOMIC_INIT(i) { (i) }
#ifdef __KERNEL__
#define atomic_read(v) ((v)->counter)
#define atomic_set(v,i) (((v)->counter) = (i))
static inline int atomic_add_return (int i, volatile atomic_t *v)
{
unsigned long flags;
int res;
local_irq_save (flags);
res = v->counter + i;
v->counter = res;
local_irq_restore (flags);
return res;
}
static __inline__ int atomic_sub_return (int i, volatile atomic_t *v)
{
unsigned long flags;
int res;
local_irq_save (flags);
res = v->counter - i;
v->counter = res;
local_irq_restore (flags);
return res;
}
static __inline__ void atomic_clear_mask (unsigned long mask, unsigned long *addr)
{
unsigned long flags;
local_irq_save (flags);
*addr &= ~mask;
local_irq_restore (flags);
}
#endif
#define atomic_add(i, v) atomic_add_return ((i), (v))
#define atomic_sub(i, v) atomic_sub_return ((i), (v))
#define atomic_dec_return(v) atomic_sub_return (1, (v))
#define atomic_inc_return(v) atomic_add_return (1, (v))
#define atomic_inc(v) atomic_inc_return (v)
#define atomic_dec(v) atomic_dec_return (v)
/*
* atomic_inc_and_test - increment and test
* @v: pointer of type atomic_t
*
* Atomically increments @v by 1
* and returns true if the result is zero, or false for all
* other cases.
*/
#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
#define atomic_sub_and_test(i,v) (atomic_sub_return ((i), (v)) == 0)
#define atomic_dec_and_test(v) (atomic_sub_return (1, (v)) == 0)
#define atomic_add_negative(i,v) (atomic_add_return ((i), (v)) < 0)
static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
{
int ret;
unsigned long flags;
local_irq_save(flags);
ret = v->counter;
if (likely(ret == old))
v->counter = new;
local_irq_restore(flags);
return ret;
}
#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
static inline int atomic_add_unless(atomic_t *v, int a, int u)
{
int ret;
unsigned long flags;
local_irq_save(flags);
ret = v->counter;
if (ret != u)
v->counter += a;
local_irq_restore(flags);
return ret != u;
}
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
/* Atomic operations are already serializing on ARM */
#define smp_mb__before_atomic_dec() barrier()
#define smp_mb__after_atomic_dec() barrier()
#define smp_mb__before_atomic_inc() barrier()
#define smp_mb__after_atomic_inc() barrier()
#include <asm-generic/atomic.h>
#endif /* __V850_ATOMIC_H__ */

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include/asm-v850/auxvec.h
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#ifndef __V850_AUXVEC_H__
#define __V850_AUXVEC_H__
#endif /* __V850_AUXVEC_H__ */

161
include/asm-v850/bitops.h
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/*
* include/asm-v850/bitops.h -- Bit operations
*
* Copyright (C) 2001,02,03,04,05 NEC Electronics Corporation
* Copyright (C) 2001,02,03,04,05 Miles Bader <miles@gnu.org>
* Copyright (C) 1992 Linus Torvalds.
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*/
#ifndef __V850_BITOPS_H__
#define __V850_BITOPS_H__
#ifndef _LINUX_BITOPS_H
#error only <linux/bitops.h> can be included directly
#endif
#include <linux/compiler.h> /* unlikely */
#include <asm/byteorder.h> /* swab32 */
#include <asm/system.h> /* interrupt enable/disable */
#ifdef __KERNEL__
#include <asm-generic/bitops/ffz.h>
/*
* The __ functions are not atomic
*/
/* In the following constant-bit-op macros, a "g" constraint is used when
we really need an integer ("i" constraint). This is to avoid
warnings/errors from the compiler in the case where the associated
operand _isn't_ an integer, and shouldn't produce bogus assembly because
use of that form is protected by a guard statement that checks for
constants, and should otherwise be removed by the optimizer. This
_usually_ works -- however, __builtin_constant_p returns true for a
variable with a known constant value too, and unfortunately gcc will
happily put the variable in a register and use the register for the "g"
constraint'd asm operand. To avoid the latter problem, we add a
constant offset to the operand and subtract it back in the asm code;
forcing gcc to do arithmetic on the value is usually enough to get it
to use a real constant value. This is horrible, and ultimately
unreliable too, but it seems to work for now (hopefully gcc will offer
us more control in the future, so we can do a better job). */
#define __const_bit_op(op, nr, addr) \
({ __asm__ (op " (%0 - 0x123), %1" \
:: "g" (((nr) & 0x7) + 0x123), \
"m" (*((char *)(addr) + ((nr) >> 3))) \
: "memory"); })
#define __var_bit_op(op, nr, addr) \
({ int __nr = (nr); \
__asm__ (op " %0, [%1]" \
:: "r" (__nr & 0x7), \
"r" ((char *)(addr) + (__nr >> 3)) \
: "memory"); })
#define __bit_op(op, nr, addr) \
((__builtin_constant_p (nr) && (unsigned)(nr) <= 0x7FFFF) \
? __const_bit_op (op, nr, addr) \
: __var_bit_op (op, nr, addr))
#define __set_bit(nr, addr) __bit_op ("set1", nr, addr)
#define __clear_bit(nr, addr) __bit_op ("clr1", nr, addr)
#define __change_bit(nr, addr) __bit_op ("not1", nr, addr)
/* The bit instructions used by `non-atomic' variants are actually atomic. */
#define set_bit __set_bit
#define clear_bit __clear_bit
#define change_bit __change_bit
#define __const_tns_bit_op(op, nr, addr) \
({ int __tns_res; \
__asm__ __volatile__ ( \
"tst1 (%1 - 0x123), %2; setf nz, %0; " op " (%1 - 0x123), %2" \
: "=&r" (__tns_res) \
: "g" (((nr) & 0x7) + 0x123), \
"m" (*((char *)(addr) + ((nr) >> 3))) \
: "memory"); \
__tns_res; \
})
#define __var_tns_bit_op(op, nr, addr) \
({ int __nr = (nr); \
int __tns_res; \
__asm__ __volatile__ ( \
"tst1 %1, [%2]; setf nz, %0; " op " %1, [%2]" \
: "=&r" (__tns_res) \
: "r" (__nr & 0x7), \
"r" ((char *)(addr) + (__nr >> 3)) \
: "memory"); \
__tns_res; \
})
#define __tns_bit_op(op, nr, addr) \
((__builtin_constant_p (nr) && (unsigned)(nr) <= 0x7FFFF) \
? __const_tns_bit_op (op, nr, addr) \
: __var_tns_bit_op (op, nr, addr))
#define __tns_atomic_bit_op(op, nr, addr) \
({ int __tns_atomic_res, __tns_atomic_flags; \
local_irq_save (__tns_atomic_flags); \
__tns_atomic_res = __tns_bit_op (op, nr, addr); \
local_irq_restore (__tns_atomic_flags); \
__tns_atomic_res; \
})
#define __test_and_set_bit(nr, addr) __tns_bit_op ("set1", nr, addr)
#define test_and_set_bit(nr, addr) __tns_atomic_bit_op ("set1", nr, addr)
#define __test_and_clear_bit(nr, addr) __tns_bit_op ("clr1", nr, addr)
#define test_and_clear_bit(nr, addr) __tns_atomic_bit_op ("clr1", nr, addr)
#define __test_and_change_bit(nr, addr) __tns_bit_op ("not1", nr, addr)
#define test_and_change_bit(nr, addr) __tns_atomic_bit_op ("not1", nr, addr)
#define __const_test_bit(nr, addr) \
({ int __test_bit_res; \
__asm__ __volatile__ ("tst1 (%1 - 0x123), %2; setf nz, %0" \
: "=r" (__test_bit_res) \
: "g" (((nr) & 0x7) + 0x123), \
"m" (*((const char *)(addr) + ((nr) >> 3)))); \
__test_bit_res; \
})
static inline int __test_bit (int nr, const void *addr)
{
int res;
__asm__ __volatile__ ("tst1 %1, [%2]; setf nz, %0"
: "=r" (res)
: "r" (nr & 0x7), "r" (addr + (nr >> 3)));
return res;
}
#define test_bit(nr,addr) \
((__builtin_constant_p (nr) && (unsigned)(nr) <= 0x7FFFF) \
? __const_test_bit ((nr), (addr)) \
: __test_bit ((nr), (addr)))
/* clear_bit doesn't provide any barrier for the compiler. */
#define smp_mb__before_clear_bit() barrier ()
#define smp_mb__after_clear_bit() barrier ()
#include <asm-generic/bitops/ffs.h>
#include <asm-generic/bitops/fls.h>
#include <asm-generic/bitops/fls64.h>
#include <asm-generic/bitops/__ffs.h>
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/hweight.h>
#include <asm-generic/bitops/lock.h>
#include <asm-generic/bitops/ext2-non-atomic.h>
#define ext2_set_bit_atomic(l,n,a) test_and_set_bit(n,a)
#define ext2_clear_bit_atomic(l,n,a) test_and_clear_bit(n,a)
#include <asm-generic/bitops/minix.h>
#endif /* __KERNEL__ */
#endif /* __V850_BITOPS_H__ */

25
include/asm-v850/bug.h
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/*
* include/asm-v850/bug.h -- Bug reporting
*
* Copyright (C) 2003 NEC Electronics Corporation
* Copyright (C) 2003 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_BUG_H__
#define __V850_BUG_H__
#ifdef CONFIG_BUG
extern void __bug (void) __attribute__ ((noreturn));
#define BUG() __bug()
#define HAVE_ARCH_BUG
#endif
#include <asm-generic/bug.h>
#endif /* __V850_BUG_H__ */

16
include/asm-v850/bugs.h
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@ -1,16 +0,0 @@
/*
* include/asm-v850e/bugs.h
*
* Copyright (C) 1994 Linus Torvalds
*/
/*
* This is included by init/main.c to check for architecture-dependent bugs.
*
* Needs:
* void check_bugs(void);
*/
static void check_bugs(void)
{
}

48
include/asm-v850/byteorder.h
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/*
* include/asm-v850/byteorder.h -- Endian id and conversion ops
*
* Copyright (C) 2001 NEC Corporation
* Copyright (C) 2001 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_BYTEORDER_H__
#define __V850_BYTEORDER_H__
#include <asm/types.h>
#include <linux/compiler.h>
#ifdef __GNUC__
static __inline__ __attribute_const__ __u32 ___arch__swab32 (__u32 word)
{
__u32 res;
__asm__ ("bsw %1, %0" : "=r" (res) : "r" (word));
return res;
}
static __inline__ __attribute_const__ __u16 ___arch__swab16 (__u16 half_word)
{
__u16 res;
__asm__ ("bsh %1, %0" : "=r" (res) : "r" (half_word));
return res;
}
#define __arch__swab32(x) ___arch__swab32(x)
#define __arch__swab16(x) ___arch__swab16(x)
#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
# define __BYTEORDER_HAS_U64__
# define __SWAB_64_THRU_32__
#endif
#endif /* __GNUC__ */
#include <linux/byteorder/little_endian.h>
#endif /* __V850_BYTEORDER_H__ */

26
include/asm-v850/cache.h
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/*
* include/asm-v850/cache.h -- Cache operations
*
* Copyright (C) 2001,05 NEC Corporation
* Copyright (C) 2001,05 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_CACHE_H__
#define __V850_CACHE_H__
/* All cache operations are machine-dependent. */
#include <asm/machdep.h>
#ifndef L1_CACHE_BYTES
/* This processor has no cache, so just choose an arbitrary value. */
#define L1_CACHE_BYTES 16
#define L1_CACHE_SHIFT 4
#endif
#endif /* __V850_CACHE_H__ */

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include/asm-v850/cacheflush.h
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/*
* include/asm-v850/cacheflush.h
*
* Copyright (C) 2001,02,03 NEC Electronics Corporation
* Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_CACHEFLUSH_H__
#define __V850_CACHEFLUSH_H__
/* Somebody depends on this; sigh... */
#include <linux/mm.h>
#include <asm/machdep.h>
/* The following are all used by the kernel in ways that only affect
systems with MMUs, so we don't need them. */
#define flush_cache_all() ((void)0)
#define flush_cache_mm(mm) ((void)0)
#define flush_cache_dup_mm(mm) ((void)0)
#define flush_cache_range(vma, start, end) ((void)0)
#define flush_cache_page(vma, vmaddr, pfn) ((void)0)
#define flush_dcache_page(page) ((void)0)
#define flush_dcache_mmap_lock(mapping) ((void)0)
#define flush_dcache_mmap_unlock(mapping) ((void)0)
#define flush_cache_vmap(start, end) ((void)0)
#define flush_cache_vunmap(start, end) ((void)0)
#ifdef CONFIG_NO_CACHE
/* Some systems have no cache at all, in which case we don't need these
either. */
#define flush_icache() ((void)0)
#define flush_icache_range(start, end) ((void)0)
#define flush_icache_page(vma,pg) ((void)0)
#define flush_icache_user_range(vma,pg,adr,len) ((void)0)
#define flush_cache_sigtramp(vaddr) ((void)0)
#else /* !CONFIG_NO_CACHE */
struct page;
struct mm_struct;
struct vm_area_struct;
/* Otherwise, somebody had better define them. */
extern void flush_icache (void);
extern void flush_icache_range (unsigned long start, unsigned long end);
extern void flush_icache_page (struct vm_area_struct *vma, struct page *page);
extern void flush_icache_user_range (struct vm_area_struct *vma,
struct page *page,
unsigned long adr, int len);
extern void flush_cache_sigtramp (unsigned long addr);
#endif /* CONFIG_NO_CACHE */
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
do { memcpy(dst, src, len); \
flush_icache_user_range(vma, page, vaddr, len); \
} while (0)
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
memcpy(dst, src, len)
#endif /* __V850_CACHEFLUSH_H__ */

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include/asm-v850/checksum.h
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@ -1,112 +0,0 @@
/*
* include/asm-v850/checksum.h -- Checksum ops
*
* Copyright (C) 2001,2005 NEC Corporation
* Copyright (C) 2001,2005 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_CHECKSUM_H__
#define __V850_CHECKSUM_H__
/*
* computes the checksum of a memory block at buff, length len,
* and adds in "sum" (32-bit)
*
* returns a 32-bit number suitable for feeding into itself
* or csum_tcpudp_magic
*
* this function must be called with even lengths, except
* for the last fragment, which may be odd
*
* it's best to have buff aligned on a 32-bit boundary
*/
extern __wsum csum_partial(const void *buff, int len, __wsum sum);
/*
* the same as csum_partial, but copies from src while it
* checksums
*
* here even more important to align src and dst on a 32-bit (or even
* better 64-bit) boundary
*/
extern __wsum csum_partial_copy_nocheck(const void *src,
void *dst, int len, __wsum sum);
/*
* the same as csum_partial_copy, but copies from user space.
*
* here even more important to align src and dst on a 32-bit (or even
* better 64-bit) boundary
*/
extern __wsum csum_partial_copy_from_user (const void *src,
void *dst,
int len, __wsum sum,
int *csum_err);
__sum16 ip_fast_csum(const void *iph, unsigned int ihl);
/*
* Fold a partial checksum
*/
static inline __sum16 csum_fold (__wsum sum)
{
unsigned int result;
/*
%0 %1
hsw %1, %0 H L L H
add %1, %0 H L H+L+C H+L
*/
asm ("hsw %1, %0; add %1, %0" : "=&r" (result) : "r" (sum));
return (__force __sum16)(~result >> 16);
}
/*
* computes the checksum of the TCP/UDP pseudo-header
* returns a 16-bit checksum, already complemented
*/
static inline __wsum
csum_tcpudp_nofold (__be32 saddr, __be32 daddr,
unsigned short len,
unsigned short proto, __wsum sum)
{
int __carry;
__asm__ ("add %2, %0;"
"setf c, %1;"
"add %1, %0;"
"add %3, %0;"
"setf c, %1;"
"add %1, %0;"
"add %4, %0;"
"setf c, %1;"
"add %1, %0"
: "=&r" (sum), "=&r" (__carry)
: "r" (daddr), "r" (saddr),
"r" ((len + proto) << 8),
"0" (sum));
return sum;
}
static inline __sum16
csum_tcpudp_magic (__be32 saddr, __be32 daddr,
unsigned short len,
unsigned short proto, __wsum sum)
{
return csum_fold (csum_tcpudp_nofold (saddr, daddr, len, proto, sum));
}
/*
* this routine is used for miscellaneous IP-like checksums, mainly
* in icmp.c
*/
extern __sum16 ip_compute_csum(const void *buff, int len);
#endif /* __V850_CHECKSUM_H__ */

26
include/asm-v850/clinkage.h
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@ -1,26 +0,0 @@
/*
* include/asm-v850/clinkage.h -- Macros to reflect C symbol-naming conventions
*
* Copyright (C) 2001,02 NEC Corporatione
* Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_CLINKAGE_H__
#define __V850_CLINKAGE_H__
#include <asm/macrology.h>
#include <asm/asm.h>
#define C_SYMBOL_NAME(name) macrology_paste(_, name)
#define C_SYMBOL_STRING(name) macrology_stringify(C_SYMBOL_NAME(name))
#define C_ENTRY(name) G_ENTRY(C_SYMBOL_NAME(name))
#define C_DATA(name) G_DATA(C_SYMBOL_NAME(name))
#define C_END(name) END(C_SYMBOL_NAME(name))
#endif /* __V850_CLINKAGE_H__ */

6
include/asm-v850/cputime.h
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@ -1,6 +0,0 @@
#ifndef __V850_CPUTIME_H
#define __V850_CPUTIME_H
#include <asm-generic/cputime.h>
#endif /* __V850_CPUTIME_H */

47
include/asm-v850/current.h
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@ -1,47 +0,0 @@
/*
* include/asm-v850/current.h -- Current task
*
* Copyright (C) 2001,02 NEC Corporation
* Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*
* Written by Miles Bader <miles@gnu.org>
*/
#ifndef __V850_CURRENT_H__
#define __V850_CURRENT_H__
#ifndef __ASSEMBLY__ /* <linux/thread_info.h> is not asm-safe. */
#include <linux/thread_info.h>
#endif
#include <asm/macrology.h>
/* Register used to hold the current task pointer while in the kernel.
Any `call clobbered' register without a special meaning should be OK,
but check asm/v850/kernel/entry.S to be sure. */
#define CURRENT_TASK_REGNUM 16
#define CURRENT_TASK macrology_paste (r, CURRENT_TASK_REGNUM)
#ifdef __ASSEMBLY__
/* Put a pointer to the current task structure into REG. */
#define GET_CURRENT_TASK(reg) \
GET_CURRENT_THREAD(reg); \
ld.w TI_TASK[reg], reg
#else /* !__ASSEMBLY__ */
/* A pointer to the current task. */
register struct task_struct *current \
__asm__ (macrology_stringify (CURRENT_TASK));
#endif /* __ASSEMBLY__ */
#endif /* _V850_CURRENT_H */

47
include/asm-v850/delay.h
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@ -1,47 +0,0 @@
/*
* include/asm-v850/delay.h -- Delay routines, using a pre-computed
* "loops_per_second" value
*
* Copyright (C) 2001,03 NEC Corporation
* Copyright (C) 2001,03 Miles Bader <miles@gnu.org>
* Copyright (C) 1994 Hamish Macdonald
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
* archive for more details.
*/
#ifndef __V850_DELAY_H__
#define __V850_DELAY_H__
#include <asm/param.h>
static inline void __delay(unsigned long loops)
{
if (loops)
__asm__ __volatile__ ("1: add -1, %0; bnz 1b"
: "=r" (loops) : "0" (loops));
}
/*
* Use only for very small delays ( < 1 msec). Should probably use a
* lookup table, really, as the multiplications take much too long with
* short delays. This is a "reasonable" implementation, though (and the
* first constant multiplications gets optimized away if the delay is
* a constant)
*/
extern unsigned long loops_per_jiffy;
static inline void udelay(unsigned long usecs)
{
register unsigned long full_loops, part_loops;
full_loops = ((usecs * HZ) / 1000000) * loops_per_jiffy;
usecs %= (1000000 / HZ);
part_loops = (usecs * HZ * loops_per_jiffy) / 1000000;
__delay(full_loops + part_loops);
}
#endif /* __V850_DELAY_H__ */

7
include/asm-v850/device.h
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@ -1,7 +0,0 @@
/*
* Arch specific extensions to struct device
*
* This file is released under the GPLv2
*/
#include <asm-generic/device.h>

1
include/asm-v850/div64.h
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@ -1 +0,0 @@
#include <asm-generic/div64.h>

11
include/asm-v850/dma-mapping.h
View file

@ -1,11 +0,0 @@
#ifndef __V850_DMA_MAPPING_H__
#define __V850_DMA_MAPPING_H__
#ifdef CONFIG_PCI
#include <asm-generic/dma-mapping.h>
#else
#include <asm-generic/dma-mapping-broken.h>
#endif
#endif /* __V850_DMA_MAPPING_H__ */

18
include/asm-v850/dma.h
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@ -1,18 +0,0 @@
#ifndef __V850_DMA_H__
#define __V850_DMA_H__
/* What should this be? */
#define MAX_DMA_ADDRESS 0xFFFFFFFF
/* reserve a DMA channel */
extern int request_dma (unsigned int dmanr, const char * device_id);
/* release it again */
extern void free_dma (unsigned int dmanr);
#ifdef CONFIG_PCI
extern int isa_dma_bridge_buggy;
#else
#define isa_dma_bridge_buggy (0)
#endif
#endif /* __V850_DMA_H__ */

99
include/asm-v850/elf.h
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@ -1,99 +0,0 @@
#ifndef __V850_ELF_H__
#define __V850_ELF_H__
/*
* ELF register definitions..
*/
#include <asm/ptrace.h>
#include <asm/user.h>
#include <asm/byteorder.h>
typedef unsigned long elf_greg_t;
#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef struct user_fpu_struct elf_fpregset_t;
/*
* This is used to ensure we don't load something for the wrong architecture.
*/
#define elf_check_arch(x) \
((x)->e_machine == EM_V850 || (x)->e_machine == EM_CYGNUS_V850)
/* v850 relocation types. */
#define R_V850_NONE 0
#define R_V850_9_PCREL 1
#define R_V850_22_PCREL 2
#define R_V850_HI16_S 3
#define R_V850_HI16 4
#define R_V850_LO16 5
#define R_V850_32 6
#define R_V850_16 7
#define R_V850_8 8
#define R_V850_SDA_16_16_OFFSET 9 /* For ld.b, st.b, set1, clr1,
not1, tst1, movea, movhi */
#define R_V850_SDA_15_16_OFFSET 10 /* For ld.w, ld.h, ld.hu, st.w, st.h */
#define R_V850_ZDA_16_16_OFFSET 11 /* For ld.b, st.b, set1, clr1,
not1, tst1, movea, movhi */
#define R_V850_ZDA_15_16_OFFSET 12 /* For ld.w, ld.h, ld.hu, st.w, st.h */
#define R_V850_TDA_6_8_OFFSET 13 /* For sst.w, sld.w */
#define R_V850_TDA_7_8_OFFSET 14 /* For sst.h, sld.h */
#define R_V850_TDA_7_7_OFFSET 15 /* For sst.b, sld.b */
#define R_V850_TDA_16_16_OFFSET 16 /* For set1, clr1, not1, tst1,
movea, movhi */
#define R_V850_NUM 17
/*
* These are used to set parameters in the core dumps.
*/
#define ELF_CLASS ELFCLASS32
#ifdef __LITTLE_ENDIAN__
#define ELF_DATA ELFDATA2LSB
#else
#define ELF_DATA ELFDATA2MSB
#endif
#define ELF_ARCH EM_V850
#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE 4096
#define ELF_CORE_COPY_REGS(_dest,_regs) \
memcpy((char *) &_dest, (char *) _regs, \
sizeof(struct pt_regs));
/* This yields a mask that user programs can use to figure out what
instruction set this CPU supports. This could be done in user space,
but it's not easy, and we've already done it here. */
#define ELF_HWCAP (0)
/* This yields a string that ld.so will use to load implementation
specific libraries for optimization. This is more specific in
intent than poking at uname or /proc/cpuinfo.
For the moment, we have only optimizations for the Intel generations,
but that could change... */
#define ELF_PLATFORM (NULL)
#define ELF_PLAT_INIT(_r, load_addr) \
do { \
_r->gpr[0] = _r->gpr[1] = _r->gpr[2] = _r->gpr[3] = \
_r->gpr[4] = _r->gpr[5] = _r->gpr[6] = _r->gpr[7] = \
_r->gpr[8] = _r->gpr[9] = _r->gpr[10] = _r->gpr[11] = \
_r->gpr[12] = _r->gpr[13] = _r->gpr[14] = _r->gpr[15] = \
_r->gpr[16] = _r->gpr[17] = _r->gpr[18] = _r->gpr[19] = \
_r->gpr[20] = _r->gpr[21] = _r->gpr[22] = _r->gpr[23] = \
_r->gpr[24] = _r->gpr[25] = _r->gpr[26] = _r->gpr[27] = \
_r->gpr[28] = _r->gpr[29] = _r->gpr[30] = _r->gpr[31] = \
0; \
} while (0)
#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
#endif /* __V850_ELF_H__ */

6
include/asm-v850/emergency-restart.h
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@ -1,6 +0,0 @@
#ifndef _ASM_EMERGENCY_RESTART_H
#define _ASM_EMERGENCY_RESTART_H
#include <asm-generic/emergency-restart.h>
#endif /* _ASM_EMERGENCY_RESTART_H */

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