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Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm

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* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (44 commits)
  [ARM] 4822/1: RealView: Change the REALVIEW_MPCORE configuration option
  [ARM] 4821/1: RealView: Remove the platform dependencies from localtimer.c
  [ARM] 4820/1: RealView: Select the timer IRQ at run-time
  [ARM] 4819/1: RealView: Fix entry-macro.S to work with multiple platforms
  [ARM] 4818/1: RealView: Add core-tile detection
  [ARM] 4817/1: RealView: Move the AMBA resource definitions to realview_eb.c
  [ARM] 4816/1: RealView: Move the platform-specific definitions into board-eb.h
  [ARM] 4815/1: RealView: Add clockevents suport for the local timers
  [ARM] 4814/1: RealView: Add broadcasting clockevents support for ARM11MPCore
  [ARM] 4813/1: Add SMP helper functions for clockevents support
  [ARM] 4812/1: RealView: clockevents support for the RealView platforms
  [ARM] 4811/1: RealView: clocksource support for the RealView platforms
  [ARM] 4736/1: Export atags to userspace and allow kexec to use customised atags
  [ARM] 4798/1: pcm027: fix missing header file
  [ARM] 4803/1: pxa: fix building issue of poodle.c caused by patch 4737/1
  [ARM] 4801/1: pxa: fix building issues of missing pxa2xx-regs.h
  [ARM] pxa: introduce sysdev for pxa3xx static memory controller
  [ARM] pxa: add preliminary suspend/resume code for pxa3xx
  [ARM] pxa: introduce sysdev for GPIO register saving/restoring
  [ARM] pxa: introduce sysdev for IRQ register saving/restoring
  ...
This commit is contained in:
Linus Torvalds 2008-02-04 15:29:53 -08:00
commit 9ef9dc69d4
84 changed files with 3792 additions and 1447 deletions
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18
arch/arm/Kconfig
View file

@ -35,6 +35,11 @@ config GENERIC_CLOCKEVENTS
bool
default n
config GENERIC_CLOCKEVENTS_BROADCAST
bool
depends on GENERIC_CLOCKEVENTS
default y if SMP && !LOCAL_TIMERS
config MMU
bool
default y
@ -187,6 +192,8 @@ config ARCH_REALVIEW
bool "ARM Ltd. RealView family"
select ARM_AMBA
select ICST307
select GENERIC_TIME
select GENERIC_CLOCKEVENTS
help
This enables support for ARM Ltd RealView boards.
@ -623,7 +630,7 @@ source "kernel/time/Kconfig"
config SMP
bool "Symmetric Multi-Processing (EXPERIMENTAL)"
depends on EXPERIMENTAL && REALVIEW_MPCORE
depends on EXPERIMENTAL && REALVIEW_EB_ARM11MP
help
This enables support for systems with more than one CPU. If you have
a system with only one CPU, like most personal computers, say N. If
@ -656,7 +663,7 @@ config HOTPLUG_CPU
config LOCAL_TIMERS
bool "Use local timer interrupts"
depends on SMP && REALVIEW_MPCORE
depends on SMP && REALVIEW_EB_ARM11MP
default y
help
Enable support for local timers on SMP platforms, rather then the
@ -912,6 +919,13 @@ config KEXEC
initially work for you. It may help to enable device hotplugging
support.
config ATAGS_PROC
bool "Export atags in procfs"
default n
help
Should the atags used to boot the kernel be exported in an "atags"
file in procfs. Useful with kexec.
endmenu
if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)

2
arch/arm/common/time-acorn.c
View file

@ -69,9 +69,7 @@ void __init ioctime_init(void)
static irqreturn_t
ioc_timer_interrupt(int irq, void *dev_id)
{
write_seqlock(&xtime_lock);
timer_tick();
write_sequnlock(&xtime_lock);
return IRQ_HANDLED;
}

982
arch/arm/configs/ixp4xx_defconfig
View file

File diff suppressed because it is too large Load diff

1
arch/arm/kernel/Makefile
View file

@ -20,6 +20,7 @@ obj-$(CONFIG_PCI) += bios32.o isa.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
obj-$(CONFIG_KPROBES) += kprobes.o kprobes-decode.o
obj-$(CONFIG_ATAGS_PROC) += atags.o
obj-$(CONFIG_OABI_COMPAT) += sys_oabi-compat.o
obj-$(CONFIG_CRUNCH) += crunch.o crunch-bits.o

86
arch/arm/kernel/atags.c Normal file
View file

@ -0,0 +1,86 @@
#include <linux/slab.h>
#include <linux/kexec.h>
#include <linux/proc_fs.h>
#include <asm/setup.h>
#include <asm/types.h>
#include <asm/page.h>
struct buffer {
size_t size;
char *data;
};
static struct buffer tags_buffer;
static int
read_buffer(char* page, char** start, off_t off, int count,
int* eof, void* data)
{
struct buffer *buffer = (struct buffer *)data;
if (off >= buffer->size) {
*eof = 1;
return 0;
}
count = min((int) (buffer->size - off), count);
memcpy(page, &buffer->data[off], count);
return count;
}
static int
create_proc_entries(void)
{
struct proc_dir_entry* tags_entry;
tags_entry = create_proc_read_entry("atags", 0400, &proc_root, read_buffer, &tags_buffer);
if (!tags_entry)
return -ENOMEM;
return 0;
}
static char __initdata atags_copy_buf[KEXEC_BOOT_PARAMS_SIZE];
static char __initdata *atags_copy;
void __init save_atags(const struct tag *tags)
{
atags_copy = atags_copy_buf;
memcpy(atags_copy, tags, KEXEC_BOOT_PARAMS_SIZE);
}
static int __init init_atags_procfs(void)
{
struct tag *tag;
int error;
if (!atags_copy) {
printk(KERN_WARNING "Exporting ATAGs: No saved tags found\n");
return -EIO;
}
for (tag = (struct tag *) atags_copy; tag->hdr.size; tag = tag_next(tag))
;
tags_buffer.size = ((char *) tag - atags_copy) + sizeof(tag->hdr);
tags_buffer.data = kmalloc(tags_buffer.size, GFP_KERNEL);
if (tags_buffer.data == NULL)
return -ENOMEM;
memcpy(tags_buffer.data, atags_copy, tags_buffer.size);
error = create_proc_entries();
if (error) {
printk(KERN_ERR "Exporting ATAGs: not enough memory\n");
kfree(tags_buffer.data);
tags_buffer.size = 0;
tags_buffer.data = NULL;
}
return error;
}
arch_initcall(init_atags_procfs);

5
arch/arm/kernel/atags.h Normal file
View file

@ -0,0 +1,5 @@
#ifdef CONFIG_ATAGS_PROC
extern void save_atags(struct tag *tags);
#else
static inline void save_atags(struct tag *tags) { }
#endif

2
arch/arm/kernel/machine_kexec.c
View file

@ -21,6 +21,7 @@ extern void setup_mm_for_reboot(char mode);
extern unsigned long kexec_start_address;
extern unsigned long kexec_indirection_page;
extern unsigned long kexec_mach_type;
extern unsigned long kexec_boot_atags;
/*
* Provide a dummy crash_notes definition while crash dump arrives to arm.
@ -62,6 +63,7 @@ void machine_kexec(struct kimage *image)
kexec_start_address = image->start;
kexec_indirection_page = page_list;
kexec_mach_type = machine_arch_type;
kexec_boot_atags = image->start - KEXEC_ARM_ZIMAGE_OFFSET + KEXEC_ARM_ATAGS_OFFSET;
/* copy our kernel relocation code to the control code page */
memcpy(reboot_code_buffer,

30
arch/arm/kernel/relocate_kernel.S
View file

@ -7,23 +7,6 @@
.globl relocate_new_kernel
relocate_new_kernel:
/* Move boot params back to where the kernel expects them */
ldr r0,kexec_boot_params_address
teq r0,#0
beq 8f
ldr r1,kexec_boot_params_copy
mov r6,#KEXEC_BOOT_PARAMS_SIZE/4
7:
ldr r5,[r1],#4
str r5,[r0],#4
subs r6,r6,#1
bne 7b
8:
/* Boot params moved, now go on with the kernel */
ldr r0,kexec_indirection_page
ldr r1,kexec_start_address
@ -67,7 +50,7 @@ relocate_new_kernel:
mov lr,r1
mov r0,#0
ldr r1,kexec_mach_type
ldr r2,kexec_boot_params_address
ldr r2,kexec_boot_atags
mov pc,lr
.globl kexec_start_address
@ -82,14 +65,9 @@ kexec_indirection_page:
kexec_mach_type:
.long 0x0
/* phy addr where new kernel will expect to find boot params */
.globl kexec_boot_params_address
kexec_boot_params_address:
.long 0x0
/* phy addr where old kernel put a copy of orig boot params */
.globl kexec_boot_params_copy
kexec_boot_params_copy:
/* phy addr of the atags for the new kernel */
.globl kexec_boot_atags
kexec_boot_atags:
.long 0x0
relocate_new_kernel_end:

33
arch/arm/kernel/setup.c
View file

@ -24,7 +24,6 @@
#include <linux/interrupt.h>
#include <linux/smp.h>
#include <linux/fs.h>
#include <linux/kexec.h>
#include <asm/cpu.h>
#include <asm/elf.h>
@ -39,6 +38,7 @@
#include <asm/mach/time.h>
#include "compat.h"
#include "atags.h"
#ifndef MEM_SIZE
#define MEM_SIZE (16*1024*1024)
@ -62,6 +62,7 @@ extern int root_mountflags;
extern void _stext, _text, _etext, __data_start, _edata, _end;
unsigned int processor_id;
EXPORT_SYMBOL(processor_id);
unsigned int __machine_arch_type;
EXPORT_SYMBOL(__machine_arch_type);
@ -784,23 +785,6 @@ static int __init customize_machine(void)
}
arch_initcall(customize_machine);
#ifdef CONFIG_KEXEC
/* Physical addr of where the boot params should be for this machine */
extern unsigned long kexec_boot_params_address;
/* Physical addr of the buffer into which the boot params are copied */
extern unsigned long kexec_boot_params_copy;
/* Pointer to the boot params buffer, for manipulation and display */
unsigned long kexec_boot_params;
EXPORT_SYMBOL(kexec_boot_params);
/* The buffer itself - make sure it is sized correctly */
static unsigned long kexec_boot_params_buf[(KEXEC_BOOT_PARAMS_SIZE + 3) / 4];
#endif
void __init setup_arch(char **cmdline_p)
{
struct tag *tags = (struct tag *)&init_tags;
@ -819,18 +803,6 @@ void __init setup_arch(char **cmdline_p)
else if (mdesc->boot_params)
tags = phys_to_virt(mdesc->boot_params);
#ifdef CONFIG_KEXEC
kexec_boot_params_copy = virt_to_phys(kexec_boot_params_buf);
kexec_boot_params = (unsigned long)kexec_boot_params_buf;
if (__atags_pointer) {
kexec_boot_params_address = __atags_pointer;
memcpy((void *)kexec_boot_params, tags, KEXEC_BOOT_PARAMS_SIZE);
} else if (mdesc->boot_params) {
kexec_boot_params_address = mdesc->boot_params;
memcpy((void *)kexec_boot_params, tags, KEXEC_BOOT_PARAMS_SIZE);
}
#endif
/*
* If we have the old style parameters, convert them to
* a tag list.
@ -846,6 +818,7 @@ void __init setup_arch(char **cmdline_p)
if (tags->hdr.tag == ATAG_CORE) {
if (meminfo.nr_banks != 0)
squash_mem_tags(tags);
save_atags(tags);
parse_tags(tags);
}

39
arch/arm/kernel/smp.c
View file

@ -290,6 +290,11 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
local_irq_enable();
local_fiq_enable();
/*
* Setup local timer for this CPU.
*/
local_timer_setup(cpu);
calibrate_delay();
smp_store_cpu_info(cpu);
@ -299,11 +304,6 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
*/
cpu_set(cpu, cpu_online_map);
/*
* Setup local timer for this CPU.
*/
local_timer_setup(cpu);
/*
* OK, it's off to the idle thread for us
*/
@ -454,6 +454,27 @@ int smp_call_function(void (*func)(void *info), void *info, int retry,
}
EXPORT_SYMBOL_GPL(smp_call_function);
int smp_call_function_single(int cpu, void (*func)(void *info), void *info,
int retry, int wait)
{
/* prevent preemption and reschedule on another processor */
int current_cpu = get_cpu();
int ret = 0;
if (cpu == current_cpu) {
local_irq_disable();
func(info);
local_irq_enable();
} else
ret = smp_call_function_on_cpu(func, info, retry, wait,
cpumask_of_cpu(cpu));
put_cpu();
return ret;
}
EXPORT_SYMBOL_GPL(smp_call_function_single);
void show_ipi_list(struct seq_file *p)
{
unsigned int cpu;
@ -481,8 +502,7 @@ void show_local_irqs(struct seq_file *p)
static void ipi_timer(void)
{
irq_enter();
profile_tick(CPU_PROFILING);
update_process_times(user_mode(get_irq_regs()));
local_timer_interrupt();
irq_exit();
}
@ -621,6 +641,11 @@ void smp_send_timer(void)
send_ipi_message(mask, IPI_TIMER);
}
void smp_timer_broadcast(cpumask_t mask)
{
send_ipi_message(mask, IPI_TIMER);
}
void smp_send_stop(void)
{
cpumask_t mask = cpu_online_map;

30
arch/arm/mach-at91/Kconfig
View file

@ -253,6 +253,36 @@ config AT91_TIMER_HZ
system clock (of at least several MHz), rounding is less of a
problem so it can be safer to use a decimal values like 100.
choice
prompt "Select a UART for early kernel messages"
config AT91_EARLY_DBGU
bool "DBGU"
config AT91_EARLY_USART0
bool "USART0"
config AT91_EARLY_USART1
bool "USART1"
config AT91_EARLY_USART2
bool "USART2"
depends on ! ARCH_AT91X40
config AT91_EARLY_USART3
bool "USART3"
depends on (ARCH_AT91RM9200 || ARCH_AT91SAM9RL || ARCH_AT91SAM9260)
config AT91_EARLY_USART4
bool "USART4"
depends on ARCH_AT91SAM9260
config AT91_EARLY_USART5
bool "USART5"
depends on ARCH_AT91SAM9260
endchoice
endmenu
endif

3
arch/arm/mach-at91/at91sam926x_time.c
View file

@ -49,8 +49,6 @@ static irqreturn_t at91sam926x_timer_interrupt(int irq, void *dev_id)
volatile long nr_ticks;
if (at91_sys_read(AT91_PIT_SR) & AT91_PIT_PITS) { /* This is a shared interrupt */
write_seqlock(&xtime_lock);
/* Get number to ticks performed before interrupt and clear PIT interrupt */
nr_ticks = PIT_PICNT(at91_sys_read(AT91_PIT_PIVR));
do {
@ -58,7 +56,6 @@ static irqreturn_t at91sam926x_timer_interrupt(int irq, void *dev_id)
nr_ticks--;
} while (nr_ticks);
write_sequnlock(&xtime_lock);
return IRQ_HANDLED;
} else
return IRQ_NONE; /* not handled */

3
arch/arm/mach-at91/generic.h
View file

@ -47,6 +47,9 @@ extern void at91_irq_resume(void);
#define AT91RM9200_BGA 4 /* AT91RM9200 BGA package has 4 banks */
struct at91_gpio_bank {
unsigned chipbase; /* bank's first GPIO number */
void __iomem *regbase; /* base of register bank */
struct at91_gpio_bank *next; /* bank sharing same IRQ/clock/... */
unsigned short id; /* peripheral ID */
unsigned long offset; /* offset from system peripheral base */
struct clk *clock; /* associated clock */

85
arch/arm/mach-at91/gpio.c
View file

@ -33,12 +33,10 @@ static int gpio_banks;
static inline void __iomem *pin_to_controller(unsigned pin)
{
void __iomem *sys_base = (void __iomem *) AT91_VA_BASE_SYS;
pin -= PIN_BASE;
pin /= 32;
if (likely(pin < gpio_banks))
return sys_base + gpio[pin].offset;
return gpio[pin].regbase;
return NULL;
}
@ -294,11 +292,11 @@ void at91_gpio_suspend(void)
int i;
for (i = 0; i < gpio_banks; i++) {
u32 pio = gpio[i].offset;
void __iomem *pio = gpio[i].regbase;
backups[i] = at91_sys_read(pio + PIO_IMR);
at91_sys_write(pio + PIO_IDR, backups[i]);
at91_sys_write(pio + PIO_IER, wakeups[i]);
backups[i] = __raw_readl(pio + PIO_IMR);
__raw_writel(backups[i], pio + PIO_IDR);
__raw_writel(wakeups[i], pio + PIO_IER);
if (!wakeups[i])
clk_disable(gpio[i].clock);
@ -315,13 +313,13 @@ void at91_gpio_resume(void)
int i;
for (i = 0; i < gpio_banks; i++) {
u32 pio = gpio[i].offset;
void __iomem *pio = gpio[i].regbase;
if (!wakeups[i])
clk_enable(gpio[i].clock);
at91_sys_write(pio + PIO_IDR, wakeups[i]);
at91_sys_write(pio + PIO_IER, backups[i]);
__raw_writel(wakeups[i], pio + PIO_IDR);
__raw_writel(backups[i], pio + PIO_IER);
}
}
@ -361,7 +359,13 @@ static void gpio_irq_unmask(unsigned pin)
static int gpio_irq_type(unsigned pin, unsigned type)
{
return (type == IRQT_BOTHEDGE) ? 0 : -EINVAL;
switch (type) {
case IRQ_TYPE_NONE:
case IRQ_TYPE_EDGE_BOTH:
return 0;
default:
return -EINVAL;
}
}
static struct irq_chip gpio_irqchip = {
@ -376,20 +380,30 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
{
unsigned pin;
struct irq_desc *gpio;
struct at91_gpio_bank *bank;
void __iomem *pio;
u32 isr;
pio = get_irq_chip_data(irq);
bank = get_irq_chip_data(irq);
pio = bank->regbase;
/* temporarily mask (level sensitive) parent IRQ */
desc->chip->ack(irq);
for (;;) {
/* reading ISR acks the pending (edge triggered) GPIO interrupt */
/* Reading ISR acks pending (edge triggered) GPIO interrupts.
* When there none are pending, we're finished unless we need
* to process multiple banks (like ID_PIOCDE on sam9263).
*/
isr = __raw_readl(pio + PIO_ISR) & __raw_readl(pio + PIO_IMR);
if (!isr)
if (!isr) {
if (!bank->next)
break;
bank = bank->next;
pio = bank->regbase;
continue;
}
pin = (unsigned) get_irq_data(irq);
pin = bank->chipbase;
gpio = &irq_desc[pin];
while (isr) {
@ -482,23 +496,20 @@ postcore_initcall(at91_gpio_debugfs_init);
void __init at91_gpio_irq_setup(void)
{
unsigned pioc, pin;
struct at91_gpio_bank *this, *prev;
for (pioc = 0, pin = PIN_BASE;
pioc < gpio_banks;
pioc++) {
void __iomem *controller;
unsigned id = gpio[pioc].id;
for (pioc = 0, pin = PIN_BASE, this = gpio, prev = NULL;
pioc++ < gpio_banks;
prev = this, this++) {
unsigned id = this->id;
unsigned i;
clk_enable(gpio[pioc].clock); /* enable PIO controller's clock */
/* enable PIO controller's clock */
clk_enable(this->clock);
controller = (void __iomem *) AT91_VA_BASE_SYS + gpio[pioc].offset;
__raw_writel(~0, controller + PIO_IDR);
__raw_writel(~0, this->regbase + PIO_IDR);
set_irq_data(id, (void *) pin);
set_irq_chip_data(id, controller);
for (i = 0; i < 32; i++, pin++) {
for (i = 0, pin = this->chipbase; i < 32; i++, pin++) {
/*
* Can use the "simple" and not "edge" handler since it's
* shorter, and the AIC handles interrupts sanely.
@ -508,6 +519,14 @@ void __init at91_gpio_irq_setup(void)
set_irq_flags(pin, IRQF_VALID);
}
/* The toplevel handler handles one bank of GPIOs, except
* AT91SAM9263_ID_PIOCDE handles three... PIOC is first in
* the list, so we only set up that handler.
*/
if (prev && prev->next == this)
continue;
set_irq_chip_data(id, this);
set_irq_chained_handler(id, gpio_irq_handler);
}
pr_info("AT91: %d gpio irqs in %d banks\n", pin - PIN_BASE, gpio_banks);
@ -518,8 +537,20 @@ void __init at91_gpio_irq_setup(void)
*/
void __init at91_gpio_init(struct at91_gpio_bank *data, int nr_banks)
{
unsigned i;
struct at91_gpio_bank *last;
BUG_ON(nr_banks > MAX_GPIO_BANKS);
gpio = data;
gpio_banks = nr_banks;
for (i = 0, last = NULL; i < nr_banks; i++, last = data, data++) {
data->chipbase = PIN_BASE + i * 32;
data->regbase = data->offset + (void __iomem *)AT91_VA_BASE_SYS;
/* AT91SAM9263_ID_PIOCDE groups PIOC, PIOD, PIOE */
if (last && last->id == data->id)
last->next = data;
}
}

14
arch/arm/mach-ixp4xx/Kconfig
View file

@ -189,6 +189,20 @@ config IXP4XX_INDIRECT_PCI
need to use the indirect method instead. If you don't know
what you need, leave this option unselected.
config IXP4XX_QMGR
tristate "IXP4xx Queue Manager support"
help
This driver supports IXP4xx built-in hardware queue manager
and is automatically selected by Ethernet and HSS drivers.
config IXP4XX_NPE
tristate "IXP4xx Network Processor Engine support"
select HOTPLUG
select FW_LOADER
help
This driver supports IXP4xx built-in network coprocessors
and is automatically selected by Ethernet and HSS drivers.
endmenu
endif

8
arch/arm/mach-ixp4xx/Makefile
View file

@ -23,10 +23,12 @@ obj-$(CONFIG_MACH_AVILA) += avila-setup.o
obj-$(CONFIG_MACH_IXDPG425) += coyote-setup.o
obj-$(CONFIG_ARCH_ADI_COYOTE) += coyote-setup.o
obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-setup.o
obj-$(CONFIG_MACH_NSLU2) += nslu2-setup.o nslu2-power.o
obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o nas100d-power.o
obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o dsmg600-power.o
obj-$(CONFIG_MACH_NSLU2) += nslu2-setup.o
obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o
obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o
obj-$(CONFIG_MACH_GATEWAY7001) += gateway7001-setup.o
obj-$(CONFIG_MACH_WG302V2) += wg302v2-setup.o
obj-$(CONFIG_PCI) += $(obj-pci-$(CONFIG_PCI)) common-pci.o
obj-$(CONFIG_IXP4XX_QMGR) += ixp4xx_qmgr.o
obj-$(CONFIG_IXP4XX_NPE) += ixp4xx_npe.o

125
arch/arm/mach-ixp4xx/dsmg600-power.c
View file

@ -1,125 +0,0 @@
/*
* arch/arm/mach-ixp4xx/dsmg600-power.c
*
* DSM-G600 Power/Reset driver
* Author: Michael Westerhof <mwester@dls.net>
*
* Based on nslu2-power.c
* Copyright (C) 2005 Tower Technologies
* Author: Alessandro Zummo <a.zummo@towertech.it>
*
* which was based on nslu2-io.c
* Copyright (C) 2004 Karen Spearel
*
* Maintainers: http://www.nslu2-linux.org/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/reboot.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/jiffies.h>
#include <linux/timer.h>
#include <asm/mach-types.h>
extern void ctrl_alt_del(void);
/* This is used to make sure the power-button pusher is serious. The button
* must be held until the value of this counter reaches zero.
*/
static volatile int power_button_countdown;
/* Must hold the button down for at least this many counts to be processed */
#define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */
static void dsmg600_power_handler(unsigned long data);
static DEFINE_TIMER(dsmg600_power_timer, dsmg600_power_handler, 0, 0);
static void dsmg600_power_handler(unsigned long data)
{
/* This routine is called twice per second to check the
* state of the power button.
*/
if (*IXP4XX_GPIO_GPINR & DSMG600_PB_BM) {
/* IO Pin is 1 (button pushed) */
if (power_button_countdown == 0) {
/* Signal init to do the ctrlaltdel action, this will bypass
* init if it hasn't started and do a kernel_restart.
*/
ctrl_alt_del();
/* Change the state of the power LED to "blink" */
gpio_line_set(DSMG600_LED_PWR_GPIO, IXP4XX_GPIO_LOW);
}
power_button_countdown--;
} else {
power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
}
mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500));
}
static irqreturn_t dsmg600_reset_handler(int irq, void *dev_id)
{
/* This is the paper-clip reset, it shuts the machine down directly. */
machine_power_off();
return IRQ_HANDLED;
}
static int __init dsmg600_power_init(void)
{
if (!(machine_is_dsmg600()))
return 0;
if (request_irq(DSMG600_RB_IRQ, &dsmg600_reset_handler,
IRQF_DISABLED | IRQF_TRIGGER_LOW, "DSM-G600 reset button",
NULL) < 0) {
printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
DSMG600_RB_IRQ);
return -EIO;
}
/* The power button on the D-Link DSM-G600 is on GPIO 15, but
* it cannot handle interrupts on that GPIO line. So we'll
* have to poll it with a kernel timer.
*/
/* Make sure that the power button GPIO is set up as an input */
gpio_line_config(DSMG600_PB_GPIO, IXP4XX_GPIO_IN);
/* Set the initial value for the power button IRQ handler */
power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500));
return 0;
}
static void __exit dsmg600_power_exit(void)
{
if (!(machine_is_dsmg600()))
return;
del_timer_sync(&dsmg600_power_timer);
free_irq(DSMG600_RB_IRQ, NULL);
}
module_init(dsmg600_power_init);
module_exit(dsmg600_power_exit);
MODULE_AUTHOR("Michael Westerhof <mwester@dls.net>");
MODULE_DESCRIPTION("DSM-G600 Power/Reset driver");
MODULE_LICENSE("GPL");

140
arch/arm/mach-ixp4xx/dsmg600-setup.c
View file

@ -1,25 +1,37 @@
/*
* DSM-G600 board-setup
*
* Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
* Copyright (C) 2006 Tower Technologies
* Author: Alessandro Zummo <a.zummo@towertech.it>
*
* based ixdp425-setup.c:
* based on ixdp425-setup.c:
* Copyright (C) 2003-2004 MontaVista Software, Inc.
* based on nslu2-power.c:
* Copyright (C) 2005 Tower Technologies
* based on nslu2-io.c:
* Copyright (C) 2004 Karen Spearel
*
* Author: Alessandro Zummo <a.zummo@towertech.it>
* Author: Michael Westerhof <mwester@dls.net>
* Author: Rod Whitby <rod@whitby.id.au>
* Maintainers: http://www.nslu2-linux.org/
*/
#include <linux/kernel.h>
#include <linux/irq.h>
#include <linux/jiffies.h>
#include <linux/timer.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/leds.h>
#include <linux/reboot.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/time.h>
#include <asm/gpio.h>
static struct flash_platform_data dsmg600_flash_data = {
.map_name = "cfi_probe",
@ -51,29 +63,34 @@ static struct platform_device dsmg600_i2c_gpio = {
},
};
#ifdef CONFIG_LEDS_CLASS
static struct resource dsmg600_led_resources[] = {
static struct i2c_board_info __initdata dsmg600_i2c_board_info [] = {
{
.name = "power",
.start = DSMG600_LED_PWR_GPIO,
.end = DSMG600_LED_PWR_GPIO,
.flags = IXP4XX_GPIO_HIGH,
},
{
.name = "wlan",
.start = DSMG600_LED_WLAN_GPIO,
.end = DSMG600_LED_WLAN_GPIO,
.flags = IXP4XX_GPIO_LOW,
I2C_BOARD_INFO("rtc-pcf8563", 0x51),
},
};
static struct platform_device dsmg600_leds = {
.name = "IXP4XX-GPIO-LED",
.id = -1,
.num_resources = ARRAY_SIZE(dsmg600_led_resources),
.resource = dsmg600_led_resources,
static struct gpio_led dsmg600_led_pins[] = {
{
.name = "power",
.gpio = DSMG600_LED_PWR_GPIO,
},
{
.name = "wlan",
.gpio = DSMG600_LED_WLAN_GPIO,
.active_low = true,
},
};
static struct gpio_led_platform_data dsmg600_led_data = {
.num_leds = ARRAY_SIZE(dsmg600_led_pins),
.leds = dsmg600_led_pins,
};
static struct platform_device dsmg600_leds = {
.name = "leds-gpio",
.id = -1,
.dev.platform_data = &dsmg600_led_data,
};
#endif
static struct resource dsmg600_uart_resources[] = {
{
@ -121,6 +138,7 @@ static struct platform_device dsmg600_uart = {
static struct platform_device *dsmg600_devices[] __initdata = {
&dsmg600_i2c_gpio,
&dsmg600_flash,
&dsmg600_leds,
};
static void dsmg600_power_off(void)
@ -132,6 +150,57 @@ static void dsmg600_power_off(void)
gpio_line_set(DSMG600_PO_GPIO, IXP4XX_GPIO_HIGH);
}
/* This is used to make sure the power-button pusher is serious. The button
* must be held until the value of this counter reaches zero.
*/
static int power_button_countdown;
/* Must hold the button down for at least this many counts to be processed */
#define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */
static void dsmg600_power_handler(unsigned long data);
static DEFINE_TIMER(dsmg600_power_timer, dsmg600_power_handler, 0, 0);
static void dsmg600_power_handler(unsigned long data)
{
/* This routine is called twice per second to check the
* state of the power button.
*/
if (gpio_get_value(DSMG600_PB_GPIO)) {
/* IO Pin is 1 (button pushed) */
if (power_button_countdown > 0)
power_button_countdown--;
} else {
/* Done on button release, to allow for auto-power-on mods. */
if (power_button_countdown == 0) {
/* Signal init to do the ctrlaltdel action,
* this will bypass init if it hasn't started
* and do a kernel_restart.
*/
ctrl_alt_del();
/* Change the state of the power LED to "blink" */
gpio_line_set(DSMG600_LED_PWR_GPIO, IXP4XX_GPIO_LOW);
} else {
power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
}
}
mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500));
}
static irqreturn_t dsmg600_reset_handler(int irq, void *dev_id)
{
/* This is the paper-clip reset, it shuts the machine down directly. */
machine_power_off();
return IRQ_HANDLED;
}
static void __init dsmg600_timer_init(void)
{
/* The xtal on this machine is non-standard. */
@ -156,7 +225,8 @@ static void __init dsmg600_init(void)
dsmg600_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
pm_power_off = dsmg600_power_off;
i2c_register_board_info(0, dsmg600_i2c_board_info,
ARRAY_SIZE(dsmg600_i2c_board_info));
/* The UART is required on the DSM-G600 (Redboot cannot use the
* NIC) -- do it here so that it does *not* get removed if
@ -166,10 +236,28 @@ static void __init dsmg600_init(void)
platform_add_devices(dsmg600_devices, ARRAY_SIZE(dsmg600_devices));
#ifdef CONFIG_LEDS_CLASS
/* We don't care whether or not this works. */
(void)platform_device_register(&dsmg600_leds);
#endif
pm_power_off = dsmg600_power_off;
if (request_irq(gpio_to_irq(DSMG600_RB_GPIO), &dsmg600_reset_handler,
IRQF_DISABLED | IRQF_TRIGGER_LOW,
"DSM-G600 reset button", NULL) < 0) {
printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
gpio_to_irq(DSMG600_RB_GPIO));
}
/* The power button on the D-Link DSM-G600 is on GPIO 15, but
* it cannot handle interrupts on that GPIO line. So we'll
* have to poll it with a kernel timer.
*/
/* Make sure that the power button GPIO is set up as an input */
gpio_line_config(DSMG600_PB_GPIO, IXP4XX_GPIO_IN);
/* Set the initial value for the power button IRQ handler */
power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500));
}
MACHINE_START(DSMG600, "D-Link DSM-G600 RevA")

29
arch/arm/mach-ixp4xx/ixdp425-setup.c
View file

@ -177,6 +177,31 @@ static struct platform_device ixdp425_uart = {
.resource = ixdp425_uart_resources
};
/* Built-in 10/100 Ethernet MAC interfaces */
static struct eth_plat_info ixdp425_plat_eth[] = {
{
.phy = 0,
.rxq = 3,
.txreadyq = 20,
}, {
.phy = 1,
.rxq = 4,
.txreadyq = 21,
}
};
static struct platform_device ixdp425_eth[] = {
{
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = ixdp425_plat_eth,
}, {
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEC,
.dev.platform_data = ixdp425_plat_eth + 1,
}
};
static struct platform_device *ixdp425_devices[] __initdata = {
&ixdp425_i2c_gpio,
&ixdp425_flash,
@ -184,7 +209,9 @@ static struct platform_device *ixdp425_devices[] __initdata = {
defined(CONFIG_MTD_NAND_PLATFORM_MODULE)
&ixdp425_flash_nand,
#endif
&ixdp425_uart
&ixdp425_uart,
&ixdp425_eth[0],
&ixdp425_eth[1],
};
static void __init ixdp425_init(void)

741
arch/arm/mach-ixp4xx/ixp4xx_npe.c Normal file
View file

@ -0,0 +1,741 @@
/*
* Intel IXP4xx Network Processor Engine driver for Linux
*
* Copyright (C) 2007 Krzysztof Halasa <khc@pm.waw.pl>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*
* The code is based on publicly available information:
* - Intel IXP4xx Developer's Manual and other e-papers
* - Intel IXP400 Access Library Software (BSD license)
* - previous works by Christian Hohnstaedt <chohnstaedt@innominate.com>
* Thanks, Christian.
*/
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/firmware.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <asm/arch/npe.h>
#define DEBUG_MSG 0
#define DEBUG_FW 0
#define NPE_COUNT 3
#define MAX_RETRIES 1000 /* microseconds */
#define NPE_42X_DATA_SIZE 0x800 /* in dwords */
#define NPE_46X_DATA_SIZE 0x1000
#define NPE_A_42X_INSTR_SIZE 0x1000
#define NPE_B_AND_C_42X_INSTR_SIZE 0x800
#define NPE_46X_INSTR_SIZE 0x1000
#define REGS_SIZE 0x1000
#define NPE_PHYS_REG 32
#define FW_MAGIC 0xFEEDF00D
#define FW_BLOCK_TYPE_INSTR 0x0
#define FW_BLOCK_TYPE_DATA 0x1
#define FW_BLOCK_TYPE_EOF 0xF
/* NPE exec status (read) and command (write) */
#define CMD_NPE_STEP 0x01
#define CMD_NPE_START 0x02
#define CMD_NPE_STOP 0x03
#define CMD_NPE_CLR_PIPE 0x04
#define CMD_CLR_PROFILE_CNT 0x0C
#define CMD_RD_INS_MEM 0x10 /* instruction memory */
#define CMD_WR_INS_MEM 0x11
#define CMD_RD_DATA_MEM 0x12 /* data memory */
#define CMD_WR_DATA_MEM 0x13
#define CMD_RD_ECS_REG 0x14 /* exec access register */
#define CMD_WR_ECS_REG 0x15
#define STAT_RUN 0x80000000
#define STAT_STOP 0x40000000
#define STAT_CLEAR 0x20000000
#define STAT_ECS_K 0x00800000 /* pipeline clean */
#define NPE_STEVT 0x1B
#define NPE_STARTPC 0x1C
#define NPE_REGMAP 0x1E
#define NPE_CINDEX 0x1F
#define INSTR_WR_REG_SHORT 0x0000C000
#define INSTR_WR_REG_BYTE 0x00004000
#define INSTR_RD_FIFO 0x0F888220
#define INSTR_RESET_MBOX 0x0FAC8210
#define ECS_BG_CTXT_REG_0 0x00 /* Background Executing Context */
#define ECS_BG_CTXT_REG_1 0x01 /* Stack level */
#define ECS_BG_CTXT_REG_2 0x02
#define ECS_PRI_1_CTXT_REG_0 0x04 /* Priority 1 Executing Context */
#define ECS_PRI_1_CTXT_REG_1 0x05 /* Stack level */
#define ECS_PRI_1_CTXT_REG_2 0x06
#define ECS_PRI_2_CTXT_REG_0 0x08 /* Priority 2 Executing Context */
#define ECS_PRI_2_CTXT_REG_1 0x09 /* Stack level */
#define ECS_PRI_2_CTXT_REG_2 0x0A
#define ECS_DBG_CTXT_REG_0 0x0C /* Debug Executing Context */
#define ECS_DBG_CTXT_REG_1 0x0D /* Stack level */
#define ECS_DBG_CTXT_REG_2 0x0E
#define ECS_INSTRUCT_REG 0x11 /* NPE Instruction Register */
#define ECS_REG_0_ACTIVE 0x80000000 /* all levels */
#define ECS_REG_0_NEXTPC_MASK 0x1FFF0000 /* BG/PRI1/PRI2 levels */
#define ECS_REG_0_LDUR_BITS 8
#define ECS_REG_0_LDUR_MASK 0x00000700 /* all levels */
#define ECS_REG_1_CCTXT_BITS 16
#define ECS_REG_1_CCTXT_MASK 0x000F0000 /* all levels */
#define ECS_REG_1_SELCTXT_BITS 0
#define ECS_REG_1_SELCTXT_MASK 0x0000000F /* all levels */
#define ECS_DBG_REG_2_IF 0x00100000 /* debug level */
#define ECS_DBG_REG_2_IE 0x00080000 /* debug level */
/* NPE watchpoint_fifo register bit */
#define WFIFO_VALID 0x80000000
/* NPE messaging_status register bit definitions */
#define MSGSTAT_OFNE 0x00010000 /* OutFifoNotEmpty */
#define MSGSTAT_IFNF 0x00020000 /* InFifoNotFull */
#define MSGSTAT_OFNF 0x00040000 /* OutFifoNotFull */
#define MSGSTAT_IFNE 0x00080000 /* InFifoNotEmpty */
#define MSGSTAT_MBINT 0x00100000 /* Mailbox interrupt */
#define MSGSTAT_IFINT 0x00200000 /* InFifo interrupt */
#define MSGSTAT_OFINT 0x00400000 /* OutFifo interrupt */
#define MSGSTAT_WFINT 0x00800000 /* WatchFifo interrupt */
/* NPE messaging_control register bit definitions */
#define MSGCTL_OUT_FIFO 0x00010000 /* enable output FIFO */
#define MSGCTL_IN_FIFO 0x00020000 /* enable input FIFO */
#define MSGCTL_OUT_FIFO_WRITE 0x01000000 /* enable FIFO + WRITE */
#define MSGCTL_IN_FIFO_WRITE 0x02000000
/* NPE mailbox_status value for reset */
#define RESET_MBOX_STAT 0x0000F0F0
const char *npe_names[] = { "NPE-A", "NPE-B", "NPE-C" };
#define print_npe(pri, npe, fmt, ...) \
printk(pri "%s: " fmt, npe_name(npe), ## __VA_ARGS__)
#if DEBUG_MSG
#define debug_msg(npe, fmt, ...) \
print_npe(KERN_DEBUG, npe, fmt, ## __VA_ARGS__)
#else
#define debug_msg(npe, fmt, ...)
#endif
static struct {
u32 reg, val;
} ecs_reset[] = {
{ ECS_BG_CTXT_REG_0, 0xA0000000 },
{ ECS_BG_CTXT_REG_1, 0x01000000 },
{ ECS_BG_CTXT_REG_2, 0x00008000 },
{ ECS_PRI_1_CTXT_REG_0, 0x20000080 },
{ ECS_PRI_1_CTXT_REG_1, 0x01000000 },
{ ECS_PRI_1_CTXT_REG_2, 0x00008000 },
{ ECS_PRI_2_CTXT_REG_0, 0x20000080 },
{ ECS_PRI_2_CTXT_REG_1, 0x01000000 },
{ ECS_PRI_2_CTXT_REG_2, 0x00008000 },
{ ECS_DBG_CTXT_REG_0, 0x20000000 },
{ ECS_DBG_CTXT_REG_1, 0x00000000 },
{ ECS_DBG_CTXT_REG_2, 0x001E0000 },
{ ECS_INSTRUCT_REG, 0x1003C00F },
};
static struct npe npe_tab[NPE_COUNT] = {
{
.id = 0,
.regs = (struct npe_regs __iomem *)IXP4XX_NPEA_BASE_VIRT,
.regs_phys = IXP4XX_NPEA_BASE_PHYS,
}, {
.id = 1,
.regs = (struct npe_regs __iomem *)IXP4XX_NPEB_BASE_VIRT,
.regs_phys = IXP4XX_NPEB_BASE_PHYS,
}, {
.id = 2,
.regs = (struct npe_regs __iomem *)IXP4XX_NPEC_BASE_VIRT,
.regs_phys = IXP4XX_NPEC_BASE_PHYS,
}
};
int npe_running(struct npe *npe)
{
return (__raw_readl(&npe->regs->exec_status_cmd) & STAT_RUN) != 0;
}
static void npe_cmd_write(struct npe *npe, u32 addr, int cmd, u32 data)
{
__raw_writel(data, &npe->regs->exec_data);
__raw_writel(addr, &npe->regs->exec_addr);
__raw_writel(cmd, &npe->regs->exec_status_cmd);
}
static u32 npe_cmd_read(struct npe *npe, u32 addr, int cmd)
{
__raw_writel(addr, &npe->regs->exec_addr);
__raw_writel(cmd, &npe->regs->exec_status_cmd);
/* Iintroduce extra read cycles after issuing read command to NPE
so that we read the register after the NPE has updated it.
This is to overcome race condition between XScale and NPE */
__raw_readl(&npe->regs->exec_data);
__raw_readl(&npe->regs->exec_data);
return __raw_readl(&npe->regs->exec_data);
}
static void npe_clear_active(struct npe *npe, u32 reg)
{
u32 val = npe_cmd_read(npe, reg, CMD_RD_ECS_REG);
npe_cmd_write(npe, reg, CMD_WR_ECS_REG, val & ~ECS_REG_0_ACTIVE);
}
static void npe_start(struct npe *npe)
{
/* ensure only Background Context Stack Level is active */
npe_clear_active(npe, ECS_PRI_1_CTXT_REG_0);
npe_clear_active(npe, ECS_PRI_2_CTXT_REG_0);
npe_clear_active(npe, ECS_DBG_CTXT_REG_0);
__raw_writel(CMD_NPE_CLR_PIPE, &npe->regs->exec_status_cmd);
__raw_writel(CMD_NPE_START, &npe->regs->exec_status_cmd);
}
static void npe_stop(struct npe *npe)
{
__raw_writel(CMD_NPE_STOP, &npe->regs->exec_status_cmd);
__raw_writel(CMD_NPE_CLR_PIPE, &npe->regs->exec_status_cmd); /*FIXME?*/
}
static int __must_check npe_debug_instr(struct npe *npe, u32 instr, u32 ctx,
u32 ldur)
{
u32 wc;
int i;
/* set the Active bit, and the LDUR, in the debug level */
npe_cmd_write(npe, ECS_DBG_CTXT_REG_0, CMD_WR_ECS_REG,
ECS_REG_0_ACTIVE | (ldur << ECS_REG_0_LDUR_BITS));
/* set CCTXT at ECS DEBUG L3 to specify in which context to execute
the instruction, and set SELCTXT at ECS DEBUG Level to specify
which context store to access.
Debug ECS Level Reg 1 has form 0x000n000n, where n = context number
*/
npe_cmd_write(npe, ECS_DBG_CTXT_REG_1, CMD_WR_ECS_REG,
(ctx << ECS_REG_1_CCTXT_BITS) |
(ctx << ECS_REG_1_SELCTXT_BITS));
/* clear the pipeline */
__raw_writel(CMD_NPE_CLR_PIPE, &npe->regs->exec_status_cmd);
/* load NPE instruction into the instruction register */
npe_cmd_write(npe, ECS_INSTRUCT_REG, CMD_WR_ECS_REG, instr);
/* we need this value later to wait for completion of NPE execution
step */
wc = __raw_readl(&npe->regs->watch_count);
/* issue a Step One command via the Execution Control register */
__raw_writel(CMD_NPE_STEP, &npe->regs->exec_status_cmd);
/* Watch Count register increments when NPE completes an instruction */
for (i = 0; i < MAX_RETRIES; i++) {
if (wc != __raw_readl(&npe->regs->watch_count))
return 0;
udelay(1);
}
print_npe(KERN_ERR, npe, "reset: npe_debug_instr(): timeout\n");
return -ETIMEDOUT;
}
static int __must_check npe_logical_reg_write8(struct npe *npe, u32 addr,
u8 val, u32 ctx)
{
/* here we build the NPE assembler instruction: mov8 d0, #0 */
u32 instr = INSTR_WR_REG_BYTE | /* OpCode */
addr << 9 | /* base Operand */
(val & 0x1F) << 4 | /* lower 5 bits to immediate data */
(val & ~0x1F) << (18 - 5);/* higher 3 bits to CoProc instr. */
return npe_debug_instr(npe, instr, ctx, 1); /* execute it */
}
static int __must_check npe_logical_reg_write16(struct npe *npe, u32 addr,
u16 val, u32 ctx)
{
/* here we build the NPE assembler instruction: mov16 d0, #0 */
u32 instr = INSTR_WR_REG_SHORT | /* OpCode */
addr << 9 | /* base Operand */
(val & 0x1F) << 4 | /* lower 5 bits to immediate data */
(val & ~0x1F) << (18 - 5);/* higher 11 bits to CoProc instr. */
return npe_debug_instr(npe, instr, ctx, 1); /* execute it */
}
static int __must_check npe_logical_reg_write32(struct npe *npe, u32 addr,
u32 val, u32 ctx)
{
/* write in 16 bit steps first the high and then the low value */
if (npe_logical_reg_write16(npe, addr, val >> 16, ctx))
return -ETIMEDOUT;
return npe_logical_reg_write16(npe, addr + 2, val & 0xFFFF, ctx);
}
static int npe_reset(struct npe *npe)
{
u32 val, ctl, exec_count, ctx_reg2;
int i;
ctl = (__raw_readl(&npe->regs->messaging_control) | 0x3F000000) &
0x3F3FFFFF;
/* disable parity interrupt */
__raw_writel(ctl & 0x3F00FFFF, &npe->regs->messaging_control);
/* pre exec - debug instruction */
/* turn off the halt bit by clearing Execution Count register. */
exec_count = __raw_readl(&npe->regs->exec_count);
__raw_writel(0, &npe->regs->exec_count);
/* ensure that IF and IE are on (temporarily), so that we don't end up
stepping forever */
ctx_reg2 = npe_cmd_read(npe, ECS_DBG_CTXT_REG_2, CMD_RD_ECS_REG);
npe_cmd_write(npe, ECS_DBG_CTXT_REG_2, CMD_WR_ECS_REG, ctx_reg2 |
ECS_DBG_REG_2_IF | ECS_DBG_REG_2_IE);
/* clear the FIFOs */
while (__raw_readl(&npe->regs->watchpoint_fifo) & WFIFO_VALID)
;
while (__raw_readl(&npe->regs->messaging_status) & MSGSTAT_OFNE)
/* read from the outFIFO until empty */
print_npe(KERN_DEBUG, npe, "npe_reset: read FIFO = 0x%X\n",
__raw_readl(&npe->regs->in_out_fifo));
while (__raw_readl(&npe->regs->messaging_status) & MSGSTAT_IFNE)
/* step execution of the NPE intruction to read inFIFO using
the Debug Executing Context stack */
if (npe_debug_instr(npe, INSTR_RD_FIFO, 0, 0))
return -ETIMEDOUT;
/* reset the mailbox reg from the XScale side */
__raw_writel(RESET_MBOX_STAT, &npe->regs->mailbox_status);
/* from NPE side */
if (npe_debug_instr(npe, INSTR_RESET_MBOX, 0, 0))
return -ETIMEDOUT;
/* Reset the physical registers in the NPE register file */
for (val = 0; val < NPE_PHYS_REG; val++) {
if (npe_logical_reg_write16(npe, NPE_REGMAP, val >> 1, 0))
return -ETIMEDOUT;
/* address is either 0 or 4 */
if (npe_logical_reg_write32(npe, (val & 1) * 4, 0, 0))
return -ETIMEDOUT;
}
/* Reset the context store = each context's Context Store registers */
/* Context 0 has no STARTPC. Instead, this value is used to set NextPC
for Background ECS, to set where NPE starts executing code */
val = npe_cmd_read(npe, ECS_BG_CTXT_REG_0, CMD_RD_ECS_REG);
val &= ~ECS_REG_0_NEXTPC_MASK;
val |= (0 /* NextPC */ << 16) & ECS_REG_0_NEXTPC_MASK;
npe_cmd_write(npe, ECS_BG_CTXT_REG_0, CMD_WR_ECS_REG, val);
for (i = 0; i < 16; i++) {
if (i) { /* Context 0 has no STEVT nor STARTPC */
/* STEVT = off, 0x80 */
if (npe_logical_reg_write8(npe, NPE_STEVT, 0x80, i))
return -ETIMEDOUT;
if (npe_logical_reg_write16(npe, NPE_STARTPC, 0, i))
return -ETIMEDOUT;
}
/* REGMAP = d0->p0, d8->p2, d16->p4 */
if (npe_logical_reg_write16(npe, NPE_REGMAP, 0x820, i))
return -ETIMEDOUT;
if (npe_logical_reg_write8(npe, NPE_CINDEX, 0, i))
return -ETIMEDOUT;
}
/* post exec */
/* clear active bit in debug level */
npe_cmd_write(npe, ECS_DBG_CTXT_REG_0, CMD_WR_ECS_REG, 0);
/* clear the pipeline */
__raw_writel(CMD_NPE_CLR_PIPE, &npe->regs->exec_status_cmd);
/* restore previous values */
__raw_writel(exec_count, &npe->regs->exec_count);
npe_cmd_write(npe, ECS_DBG_CTXT_REG_2, CMD_WR_ECS_REG, ctx_reg2);
/* write reset values to Execution Context Stack registers */
for (val = 0; val < ARRAY_SIZE(ecs_reset); val++)
npe_cmd_write(npe, ecs_reset[val].reg, CMD_WR_ECS_REG,
ecs_reset[val].val);
/* clear the profile counter */
__raw_writel(CMD_CLR_PROFILE_CNT, &npe->regs->exec_status_cmd);
__raw_writel(0, &npe->regs->exec_count);
__raw_writel(0, &npe->regs->action_points[0]);
__raw_writel(0, &npe->regs->action_points[1]);
__raw_writel(0, &npe->regs->action_points[2]);
__raw_writel(0, &npe->regs->action_points[3]);
__raw_writel(0, &npe->regs->watch_count);
val = ixp4xx_read_feature_bits();
/* reset the NPE */
ixp4xx_write_feature_bits(val &
~(IXP4XX_FEATURE_RESET_NPEA << npe->id));
for (i = 0; i < MAX_RETRIES; i++) {
if (!(ixp4xx_read_feature_bits() &
(IXP4XX_FEATURE_RESET_NPEA << npe->id)))
break; /* reset completed */
udelay(1);
}
if (i == MAX_RETRIES)
return -ETIMEDOUT;
/* deassert reset */
ixp4xx_write_feature_bits(val |
(IXP4XX_FEATURE_RESET_NPEA << npe->id));
for (i = 0; i < MAX_RETRIES; i++) {
if (ixp4xx_read_feature_bits() &
(IXP4XX_FEATURE_RESET_NPEA << npe->id))
break; /* NPE is back alive */
udelay(1);
}
if (i == MAX_RETRIES)
return -ETIMEDOUT;
npe_stop(npe);
/* restore NPE configuration bus Control Register - parity settings */
__raw_writel(ctl, &npe->regs->messaging_control);
return 0;
}
int npe_send_message(struct npe *npe, const void *msg, const char *what)
{
const u32 *send = msg;
int cycles = 0;
debug_msg(npe, "Trying to send message %s [%08X:%08X]\n",
what, send[0], send[1]);
if (__raw_readl(&npe->regs->messaging_status) & MSGSTAT_IFNE) {
debug_msg(npe, "NPE input FIFO not empty\n");
return -EIO;
}
__raw_writel(send[0], &npe->regs->in_out_fifo);
if (!(__raw_readl(&npe->regs->messaging_status) & MSGSTAT_IFNF)) {
debug_msg(npe, "NPE input FIFO full\n");
return -EIO;
}
__raw_writel(send[1], &npe->regs->in_out_fifo);
while ((cycles < MAX_RETRIES) &&
(__raw_readl(&npe->regs->messaging_status) & MSGSTAT_IFNE)) {
udelay(1);
cycles++;
}
if (cycles == MAX_RETRIES) {
debug_msg(npe, "Timeout sending message\n");
return -ETIMEDOUT;
}
debug_msg(npe, "Sending a message took %i cycles\n", cycles);
return 0;
}
int npe_recv_message(struct npe *npe, void *msg, const char *what)
{
u32 *recv = msg;
int cycles = 0, cnt = 0;
debug_msg(npe, "Trying to receive message %s\n", what);
while (cycles < MAX_RETRIES) {
if (__raw_readl(&npe->regs->messaging_status) & MSGSTAT_OFNE) {
recv[cnt++] = __raw_readl(&npe->regs->in_out_fifo);
if (cnt == 2)
break;
} else {
udelay(1);
cycles++;
}
}
switch(cnt) {
case 1:
debug_msg(npe, "Received [%08X]\n", recv[0]);
break;
case 2:
debug_msg(npe, "Received [%08X:%08X]\n", recv[0], recv[1]);
break;
}
if (cycles == MAX_RETRIES) {
debug_msg(npe, "Timeout waiting for message\n");
return -ETIMEDOUT;
}
debug_msg(npe, "Receiving a message took %i cycles\n", cycles);
return 0;
}
int npe_send_recv_message(struct npe *npe, void *msg, const char *what)
{
int result;
u32 *send = msg, recv[2];
if ((result = npe_send_message(npe, msg, what)) != 0)
return result;
if ((result = npe_recv_message(npe, recv, what)) != 0)
return result;
if ((recv[0] != send[0]) || (recv[1] != send[1])) {
debug_msg(npe, "Message %s: unexpected message received\n",
what);
return -EIO;
}
return 0;
}
int npe_load_firmware(struct npe *npe, const char *name, struct device *dev)
{
const struct firmware *fw_entry;
struct dl_block {
u32 type;
u32 offset;
} *blk;
struct dl_image {
u32 magic;
u32 id;
u32 size;
union {
u32 data[0];
struct dl_block blocks[0];
};
} *image;
struct dl_codeblock {
u32 npe_addr;
u32 size;
u32 data[0];
} *cb;
int i, j, err, data_size, instr_size, blocks, table_end;
u32 cmd;
if ((err = request_firmware(&fw_entry, name, dev)) != 0)
return err;
err = -EINVAL;
if (fw_entry->size < sizeof(struct dl_image)) {
print_npe(KERN_ERR, npe, "incomplete firmware file\n");
goto err;
}
image = (struct dl_image*)fw_entry->data;
#if DEBUG_FW
print_npe(KERN_DEBUG, npe, "firmware: %08X %08X %08X (0x%X bytes)\n",
image->magic, image->id, image->size, image->size * 4);
#endif
if (image->magic == swab32(FW_MAGIC)) { /* swapped file */
image->id = swab32(image->id);
image->size = swab32(image->size);
} else if (image->magic != FW_MAGIC) {
print_npe(KERN_ERR, npe, "bad firmware file magic: 0x%X\n",
image->magic);
goto err;
}
if ((image->size * 4 + sizeof(struct dl_image)) != fw_entry->size) {
print_npe(KERN_ERR, npe,
"inconsistent size of firmware file\n");
goto err;
}
if (((image->id >> 24) & 0xF /* NPE ID */) != npe->id) {
print_npe(KERN_ERR, npe, "firmware file NPE ID mismatch\n");
goto err;
}
if (image->magic == swab32(FW_MAGIC))
for (i = 0; i < image->size; i++)
image->data[i] = swab32(image->data[i]);
if (!cpu_is_ixp46x() && ((image->id >> 28) & 0xF /* device ID */)) {
print_npe(KERN_INFO, npe, "IXP46x firmware ignored on "
"IXP42x\n");
goto err;
}
if (npe_running(npe)) {
print_npe(KERN_INFO, npe, "unable to load firmware, NPE is "
"already running\n");
err = -EBUSY;
goto err;
}
#if 0
npe_stop(npe);
npe_reset(npe);
#endif
print_npe(KERN_INFO, npe, "firmware functionality 0x%X, "
"revision 0x%X:%X\n", (image->id >> 16) & 0xFF,
(image->id >> 8) & 0xFF, image->id & 0xFF);
if (!cpu_is_ixp46x()) {
if (!npe->id)
instr_size = NPE_A_42X_INSTR_SIZE;
else
instr_size = NPE_B_AND_C_42X_INSTR_SIZE;
data_size = NPE_42X_DATA_SIZE;
} else {
instr_size = NPE_46X_INSTR_SIZE;
data_size = NPE_46X_DATA_SIZE;
}
for (blocks = 0; blocks * sizeof(struct dl_block) / 4 < image->size;
blocks++)
if (image->blocks[blocks].type == FW_BLOCK_TYPE_EOF)
break;
if (blocks * sizeof(struct dl_block) / 4 >= image->size) {
print_npe(KERN_INFO, npe, "firmware EOF block marker not "
"found\n");
goto err;
}
#if DEBUG_FW
print_npe(KERN_DEBUG, npe, "%i firmware blocks found\n", blocks);
#endif
table_end = blocks * sizeof(struct dl_block) / 4 + 1 /* EOF marker */;
for (i = 0, blk = image->blocks; i < blocks; i++, blk++) {
if (blk->offset > image->size - sizeof(struct dl_codeblock) / 4
|| blk->offset < table_end) {
print_npe(KERN_INFO, npe, "invalid offset 0x%X of "
"firmware block #%i\n", blk->offset, i);
goto err;
}
cb = (struct dl_codeblock*)&image->data[blk->offset];
if (blk->type == FW_BLOCK_TYPE_INSTR) {
if (cb->npe_addr + cb->size > instr_size)
goto too_big;
cmd = CMD_WR_INS_MEM;
} else if (blk->type == FW_BLOCK_TYPE_DATA) {
if (cb->npe_addr + cb->size > data_size)
goto too_big;
cmd = CMD_WR_DATA_MEM;
} else {
print_npe(KERN_INFO, npe, "invalid firmware block #%i "
"type 0x%X\n", i, blk->type);
goto err;
}
if (blk->offset + sizeof(*cb) / 4 + cb->size > image->size) {
print_npe(KERN_INFO, npe, "firmware block #%i doesn't "
"fit in firmware image: type %c, start 0x%X,"
" length 0x%X\n", i,
blk->type == FW_BLOCK_TYPE_INSTR ? 'I' : 'D',
cb->npe_addr, cb->size);
goto err;
}
for (j = 0; j < cb->size; j++)
npe_cmd_write(npe, cb->npe_addr + j, cmd, cb->data[j]);
}
npe_start(npe);
if (!npe_running(npe))
print_npe(KERN_ERR, npe, "unable to start\n");
release_firmware(fw_entry);
return 0;
too_big:
print_npe(KERN_INFO, npe, "firmware block #%i doesn't fit in NPE "
"memory: type %c, start 0x%X, length 0x%X\n", i,
blk->type == FW_BLOCK_TYPE_INSTR ? 'I' : 'D',
cb->npe_addr, cb->size);
err:
release_firmware(fw_entry);
return err;
}
struct npe *npe_request(int id)
{
if (id < NPE_COUNT)
if (npe_tab[id].valid)
if (try_module_get(THIS_MODULE))
return &npe_tab[id];
return NULL;
}
void npe_release(struct npe *npe)
{
module_put(THIS_MODULE);
}
static int __init npe_init_module(void)
{
int i, found = 0;
for (i = 0; i < NPE_COUNT; i++) {
struct npe *npe = &npe_tab[i];
if (!(ixp4xx_read_feature_bits() &
(IXP4XX_FEATURE_RESET_NPEA << i)))
continue; /* NPE already disabled or not present */
if (!(npe->mem_res = request_mem_region(npe->regs_phys,
REGS_SIZE,
npe_name(npe)))) {
print_npe(KERN_ERR, npe,
"failed to request memory region\n");
continue;
}
if (npe_reset(npe))
continue;
npe->valid = 1;
found++;
}
if (!found)
return -ENOSYS;
return 0;
}
static void __exit npe_cleanup_module(void)
{
int i;
for (i = 0; i < NPE_COUNT; i++)
if (npe_tab[i].mem_res) {
npe_reset(&npe_tab[i]);
release_resource(npe_tab[i].mem_res);
}
}
module_init(npe_init_module);
module_exit(npe_cleanup_module);
MODULE_AUTHOR("Krzysztof Halasa");
MODULE_LICENSE("GPL v2");
EXPORT_SYMBOL(npe_names);
EXPORT_SYMBOL(npe_running);
EXPORT_SYMBOL(npe_request);
EXPORT_SYMBOL(npe_release);
EXPORT_SYMBOL(npe_load_firmware);
EXPORT_SYMBOL(npe_send_message);
EXPORT_SYMBOL(npe_recv_message);
EXPORT_SYMBOL(npe_send_recv_message);

274
arch/arm/mach-ixp4xx/ixp4xx_qmgr.c Normal file
View file

@ -0,0 +1,274 @@
/*
* Intel IXP4xx Queue Manager driver for Linux
*
* Copyright (C) 2007 Krzysztof Halasa <khc@pm.waw.pl>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*/
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <asm/arch/qmgr.h>
#define DEBUG 0
struct qmgr_regs __iomem *qmgr_regs;
static struct resource *mem_res;
static spinlock_t qmgr_lock;
static u32 used_sram_bitmap[4]; /* 128 16-dword pages */
static void (*irq_handlers[HALF_QUEUES])(void *pdev);
static void *irq_pdevs[HALF_QUEUES];
void qmgr_set_irq(unsigned int queue, int src,
void (*handler)(void *pdev), void *pdev)
{
u32 __iomem *reg = &qmgr_regs->irqsrc[queue / 8]; /* 8 queues / u32 */
int bit = (queue % 8) * 4; /* 3 bits + 1 reserved bit per queue */
unsigned long flags;
src &= 7;
spin_lock_irqsave(&qmgr_lock, flags);
__raw_writel((__raw_readl(reg) & ~(7 << bit)) | (src << bit), reg);
irq_handlers[queue] = handler;
irq_pdevs[queue] = pdev;
spin_unlock_irqrestore(&qmgr_lock, flags);
}
static irqreturn_t qmgr_irq1(int irq, void *pdev)
{
int i;
u32 val = __raw_readl(&qmgr_regs->irqstat[0]);
__raw_writel(val, &qmgr_regs->irqstat[0]); /* ACK */
for (i = 0; i < HALF_QUEUES; i++)
if (val & (1 << i))
irq_handlers[i](irq_pdevs[i]);
return val ? IRQ_HANDLED : 0;
}
void qmgr_enable_irq(unsigned int queue)
{
unsigned long flags;
spin_lock_irqsave(&qmgr_lock, flags);
__raw_writel(__raw_readl(&qmgr_regs->irqen[0]) | (1 << queue),
&qmgr_regs->irqen[0]);
spin_unlock_irqrestore(&qmgr_lock, flags);
}
void qmgr_disable_irq(unsigned int queue)
{
unsigned long flags;
spin_lock_irqsave(&qmgr_lock, flags);
__raw_writel(__raw_readl(&qmgr_regs->irqen[0]) & ~(1 << queue),
&qmgr_regs->irqen[0]);
spin_unlock_irqrestore(&qmgr_lock, flags);
}
static inline void shift_mask(u32 *mask)
{
mask[3] = mask[3] << 1 | mask[2] >> 31;
mask[2] = mask[2] << 1 | mask[1] >> 31;
mask[1] = mask[1] << 1 | mask[0] >> 31;
mask[0] <<= 1;
}
int qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */,
unsigned int nearly_empty_watermark,
unsigned int nearly_full_watermark)
{
u32 cfg, addr = 0, mask[4]; /* in 16-dwords */
int err;
if (queue >= HALF_QUEUES)
return -ERANGE;
if ((nearly_empty_watermark | nearly_full_watermark) & ~7)
return -EINVAL;
switch (len) {
case 16:
cfg = 0 << 24;
mask[0] = 0x1;
break;
case 32:
cfg = 1 << 24;
mask[0] = 0x3;
break;
case 64:
cfg = 2 << 24;
mask[0] = 0xF;
break;
case 128:
cfg = 3 << 24;
mask[0] = 0xFF;
break;
default:
return -EINVAL;
}
cfg |= nearly_empty_watermark << 26;
cfg |= nearly_full_watermark << 29;
len /= 16; /* in 16-dwords: 1, 2, 4 or 8 */
mask[1] = mask[2] = mask[3] = 0;
if (!try_module_get(THIS_MODULE))
return -ENODEV;
spin_lock_irq(&qmgr_lock);
if (__raw_readl(&qmgr_regs->sram[queue])) {
err = -EBUSY;
goto err;
}
while (1) {
if (!(used_sram_bitmap[0] & mask[0]) &&
!(used_sram_bitmap[1] & mask[1]) &&
!(used_sram_bitmap[2] & mask[2]) &&
!(used_sram_bitmap[3] & mask[3]))
break; /* found free space */
addr++;
shift_mask(mask);
if (addr + len > ARRAY_SIZE(qmgr_regs->sram)) {
printk(KERN_ERR "qmgr: no free SRAM space for"
" queue %i\n", queue);
err = -ENOMEM;
goto err;
}
}
used_sram_bitmap[0] |= mask[0];
used_sram_bitmap[1] |= mask[1];
used_sram_bitmap[2] |= mask[2];
used_sram_bitmap[3] |= mask[3];
__raw_writel(cfg | (addr << 14), &qmgr_regs->sram[queue]);
spin_unlock_irq(&qmgr_lock);
#if DEBUG
printk(KERN_DEBUG "qmgr: requested queue %i, addr = 0x%02X\n",
queue, addr);
#endif
return 0;
err:
spin_unlock_irq(&qmgr_lock);
module_put(THIS_MODULE);
return err;
}
void qmgr_release_queue(unsigned int queue)
{
u32 cfg, addr, mask[4];
BUG_ON(queue >= HALF_QUEUES); /* not in valid range */
spin_lock_irq(&qmgr_lock);
cfg = __raw_readl(&qmgr_regs->sram[queue]);
addr = (cfg >> 14) & 0xFF;
BUG_ON(!addr); /* not requested */
switch ((cfg >> 24) & 3) {
case 0: mask[0] = 0x1; break;
case 1: mask[0] = 0x3; break;
case 2: mask[0] = 0xF; break;
case 3: mask[0] = 0xFF; break;
}
while (addr--)
shift_mask(mask);
__raw_writel(0, &qmgr_regs->sram[queue]);
used_sram_bitmap[0] &= ~mask[0];
used_sram_bitmap[1] &= ~mask[1];
used_sram_bitmap[2] &= ~mask[2];
used_sram_bitmap[3] &= ~mask[3];
irq_handlers[queue] = NULL; /* catch IRQ bugs */
spin_unlock_irq(&qmgr_lock);
module_put(THIS_MODULE);
#if DEBUG
printk(KERN_DEBUG "qmgr: released queue %i\n", queue);
#endif
}
static int qmgr_init(void)
{
int i, err;
mem_res = request_mem_region(IXP4XX_QMGR_BASE_PHYS,
IXP4XX_QMGR_REGION_SIZE,
"IXP4xx Queue Manager");
if (mem_res == NULL)
return -EBUSY;
qmgr_regs = ioremap(IXP4XX_QMGR_BASE_PHYS, IXP4XX_QMGR_REGION_SIZE);
if (qmgr_regs == NULL) {
err = -ENOMEM;
goto error_map;
}
/* reset qmgr registers */
for (i = 0; i < 4; i++) {
__raw_writel(0x33333333, &qmgr_regs->stat1[i]);
__raw_writel(0, &qmgr_regs->irqsrc[i]);
}
for (i = 0; i < 2; i++) {
__raw_writel(0, &qmgr_regs->stat2[i]);
__raw_writel(0xFFFFFFFF, &qmgr_regs->irqstat[i]); /* clear */
__raw_writel(0, &qmgr_regs->irqen[i]);
}
for (i = 0; i < QUEUES; i++)
__raw_writel(0, &qmgr_regs->sram[i]);
err = request_irq(IRQ_IXP4XX_QM1, qmgr_irq1, 0,
"IXP4xx Queue Manager", NULL);
if (err) {
printk(KERN_ERR "qmgr: failed to request IRQ%i\n",
IRQ_IXP4XX_QM1);
goto error_irq;
}
used_sram_bitmap[0] = 0xF; /* 4 first pages reserved for config */
spin_lock_init(&qmgr_lock);
printk(KERN_INFO "IXP4xx Queue Manager initialized.\n");
return 0;
error_irq:
iounmap(qmgr_regs);
error_map:
release_mem_region(IXP4XX_QMGR_BASE_PHYS, IXP4XX_QMGR_REGION_SIZE);
return err;
}
static void qmgr_remove(void)
{
free_irq(IRQ_IXP4XX_QM1, NULL);
synchronize_irq(IRQ_IXP4XX_QM1);
iounmap(qmgr_regs);
release_mem_region(IXP4XX_QMGR_BASE_PHYS, IXP4XX_QMGR_REGION_SIZE);
}
module_init(qmgr_init);
module_exit(qmgr_remove);
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Krzysztof Halasa");
EXPORT_SYMBOL(qmgr_regs);
EXPORT_SYMBOL(qmgr_set_irq);
EXPORT_SYMBOL(qmgr_enable_irq);
EXPORT_SYMBOL(qmgr_disable_irq);
EXPORT_SYMBOL(qmgr_request_queue);
EXPORT_SYMBOL(qmgr_release_queue);

69
arch/arm/mach-ixp4xx/nas100d-power.c
View file

@ -1,69 +0,0 @@
/*
* arch/arm/mach-ixp4xx/nas100d-power.c
*
* NAS 100d Power/Reset driver
*
* Copyright (C) 2005 Tower Technologies
*
* based on nas100d-io.c
* Copyright (C) 2004 Karen Spearel
*
* Author: Alessandro Zummo <a.zummo@towertech.it>
* Maintainers: http://www.nslu2-linux.org/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/reboot.h>
#include <asm/mach-types.h>
static irqreturn_t nas100d_reset_handler(int irq, void *dev_id)
{
/* Signal init to do the ctrlaltdel action, this will bypass init if
* it hasn't started and do a kernel_restart.
*/
ctrl_alt_del();
return IRQ_HANDLED;
}
static int __init nas100d_power_init(void)
{
if (!(machine_is_nas100d()))
return 0;
set_irq_type(NAS100D_RB_IRQ, IRQT_LOW);
if (request_irq(NAS100D_RB_IRQ, &nas100d_reset_handler,
IRQF_DISABLED, "NAS100D reset button", NULL) < 0) {
printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
NAS100D_RB_IRQ);
return -EIO;
}
return 0;
}
static void __exit nas100d_power_exit(void)
{
if (!(machine_is_nas100d()))
return;
free_irq(NAS100D_RB_IRQ, NULL);
}
module_init(nas100d_power_init);
module_exit(nas100d_power_exit);
MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
MODULE_DESCRIPTION("NAS100D Power/Reset driver");
MODULE_LICENSE("GPL");

190
arch/arm/mach-ixp4xx/nas100d-setup.c
View file

@ -3,8 +3,14 @@
*
* NAS 100d board-setup
*
* based ixdp425-setup.c:
* Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
*
* based on ixdp425-setup.c:
* Copyright (C) 2003-2004 MontaVista Software, Inc.
* based on nas100d-power.c:
* Copyright (C) 2005 Tower Technologies
* based on nas100d-io.c
* Copyright (C) 2004 Karen Spearel
*
* Author: Alessandro Zummo <a.zummo@towertech.it>
* Author: Rod Whitby <rod@whitby.id.au>
@ -12,15 +18,22 @@
*
*/
#include <linux/kernel.h>
#include <linux/if_ether.h>
#include <linux/irq.h>
#include <linux/jiffies.h>
#include <linux/timer.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/leds.h>
#include <linux/reboot.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/io.h>
#include <asm/gpio.h>
static struct flash_platform_data nas100d_flash_data = {
.map_name = "cfi_probe",
@ -39,35 +52,40 @@ static struct platform_device nas100d_flash = {
.resource = &nas100d_flash_resource,
};
#ifdef CONFIG_LEDS_IXP4XX
static struct resource nas100d_led_resources[] = {
static struct i2c_board_info __initdata nas100d_i2c_board_info [] = {
{
.name = "wlan", /* green led */
.start = 0,
.end = 0,
.flags = IXP4XX_GPIO_LOW,
},
{
.name = "ready", /* blue power led (off is flashing!) */
.start = 15,
.end = 15,
.flags = IXP4XX_GPIO_LOW,
},
{
.name = "disk", /* yellow led */
.start = 3,
.end = 3,
.flags = IXP4XX_GPIO_LOW,
I2C_BOARD_INFO("rtc-pcf8563", 0x51),
},
};
static struct platform_device nas100d_leds = {
.name = "IXP4XX-GPIO-LED",
.id = -1,
.num_resources = ARRAY_SIZE(nas100d_led_resources),
.resource = nas100d_led_resources,
static struct gpio_led nas100d_led_pins[] = {
{
.name = "wlan", /* green led */
.gpio = NAS100D_LED_WLAN_GPIO,
.active_low = true,
},
{
.name = "power", /* blue power led (off=flashing) */
.gpio = NAS100D_LED_PWR_GPIO,
.active_low = true,
},
{
.name = "disk", /* yellow led */
.gpio = NAS100D_LED_DISK_GPIO,
.active_low = true,
},
};
static struct gpio_led_platform_data nas100d_led_data = {
.num_leds = ARRAY_SIZE(nas100d_led_pins),
.leds = nas100d_led_pins,
};
static struct platform_device nas100d_leds = {
.name = "leds-gpio",
.id = -1,
.dev.platform_data = &nas100d_led_data,
};
#endif
static struct i2c_gpio_platform_data nas100d_i2c_gpio_data = {
.sda_pin = NAS100D_SDA_PIN,
@ -125,12 +143,28 @@ static struct platform_device nas100d_uart = {
.resource = nas100d_uart_resources,
};
/* Built-in 10/100 Ethernet MAC interfaces */
static struct eth_plat_info nas100d_plat_eth[] = {
{
.phy = 0,
.rxq = 3,
.txreadyq = 20,
}
};
static struct platform_device nas100d_eth[] = {
{
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = nas100d_plat_eth,
}
};
static struct platform_device *nas100d_devices[] __initdata = {
&nas100d_i2c_gpio,
&nas100d_flash,
#ifdef CONFIG_LEDS_IXP4XX
&nas100d_leds,
#endif
&nas100d_eth[0],
};
static void nas100d_power_off(void)
@ -144,8 +178,63 @@ static void nas100d_power_off(void)
gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
}
/* This is used to make sure the power-button pusher is serious. The button
* must be held until the value of this counter reaches zero.
*/
static int power_button_countdown;
/* Must hold the button down for at least this many counts to be processed */
#define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */
static void nas100d_power_handler(unsigned long data);
static DEFINE_TIMER(nas100d_power_timer, nas100d_power_handler, 0, 0);
static void nas100d_power_handler(unsigned long data)
{
/* This routine is called twice per second to check the
* state of the power button.
*/
if (gpio_get_value(NAS100D_PB_GPIO)) {
/* IO Pin is 1 (button pushed) */
if (power_button_countdown > 0)
power_button_countdown--;
} else {
/* Done on button release, to allow for auto-power-on mods. */
if (power_button_countdown == 0) {
/* Signal init to do the ctrlaltdel action,
* this will bypass init if it hasn't started
* and do a kernel_restart.
*/
ctrl_alt_del();
/* Change the state of the power LED to "blink" */
gpio_line_set(NAS100D_LED_PWR_GPIO, IXP4XX_GPIO_LOW);
} else {
power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
}
}
mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500));
}
static irqreturn_t nas100d_reset_handler(int irq, void *dev_id)
{
/* This is the paper-clip reset, it shuts the machine down directly. */
machine_power_off();
return IRQ_HANDLED;
}
static void __init nas100d_init(void)
{
DECLARE_MAC_BUF(mac_buf);
uint8_t __iomem *f;
int i;
ixp4xx_sys_init();
/* gpio 14 and 15 are _not_ clocks */
@ -155,7 +244,8 @@ static void __init nas100d_init(void)
nas100d_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
pm_power_off = nas100d_power_off;
i2c_register_board_info(0, nas100d_i2c_board_info,
ARRAY_SIZE(nas100d_i2c_board_info));
/*
* This is only useful on a modified machine, but it is valuable
@ -165,6 +255,48 @@ static void __init nas100d_init(void)
(void)platform_device_register(&nas100d_uart);
platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
pm_power_off = nas100d_power_off;
if (request_irq(gpio_to_irq(NAS100D_RB_GPIO), &nas100d_reset_handler,
IRQF_DISABLED | IRQF_TRIGGER_LOW,
"NAS100D reset button", NULL) < 0) {
printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
gpio_to_irq(NAS100D_RB_GPIO));
}
/* The power button on the Iomega NAS100d is on GPIO 14, but
* it cannot handle interrupts on that GPIO line. So we'll
* have to poll it with a kernel timer.
*/
/* Make sure that the power button GPIO is set up as an input */
gpio_line_config(NAS100D_PB_GPIO, IXP4XX_GPIO_IN);
/* Set the initial value for the power button IRQ handler */
power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500));
/*
* Map in a portion of the flash and read the MAC address.
* Since it is stored in BE in the flash itself, we need to
* byteswap it if we're in LE mode.
*/
f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x1000000);
if (f) {
for (i = 0; i < 6; i++)
#ifdef __ARMEB__
nas100d_plat_eth[0].hwaddr[i] = readb(f + 0xFC0FD8 + i);
#else
nas100d_plat_eth[0].hwaddr[i] = readb(f + 0xFC0FD8 + (i^3));
#endif
iounmap(f);
}
printk(KERN_INFO "NAS100D: Using MAC address %s for port 0\n",
print_mac(mac_buf, nas100d_plat_eth[0].hwaddr));
}
MACHINE_START(NAS100D, "Iomega NAS 100d")

91
arch/arm/mach-ixp4xx/nslu2-power.c
View file

@ -1,91 +0,0 @@
/*
* arch/arm/mach-ixp4xx/nslu2-power.c
*
* NSLU2 Power/Reset driver
*
* Copyright (C) 2005 Tower Technologies
*
* based on nslu2-io.c
* Copyright (C) 2004 Karen Spearel
*
* Author: Alessandro Zummo <a.zummo@towertech.it>
* Maintainers: http://www.nslu2-linux.org/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/reboot.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
#include <asm/mach-types.h>
static irqreturn_t nslu2_power_handler(int irq, void *dev_id)
{
/* Signal init to do the ctrlaltdel action, this will bypass init if
* it hasn't started and do a kernel_restart.
*/
ctrl_alt_del();
return IRQ_HANDLED;
}
static irqreturn_t nslu2_reset_handler(int irq, void *dev_id)
{
/* This is the paper-clip reset, it shuts the machine down directly.
*/
machine_power_off();
return IRQ_HANDLED;
}
static int __init nslu2_power_init(void)
{
if (!(machine_is_nslu2()))
return 0;
*IXP4XX_GPIO_GPISR = 0x20400000; /* read the 2 irqs to clr */
set_irq_type(NSLU2_RB_IRQ, IRQT_LOW);
set_irq_type(NSLU2_PB_IRQ, IRQT_HIGH);
if (request_irq(NSLU2_RB_IRQ, &nslu2_reset_handler,
IRQF_DISABLED, "NSLU2 reset button", NULL) < 0) {
printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
NSLU2_RB_IRQ);
return -EIO;
}
if (request_irq(NSLU2_PB_IRQ, &nslu2_power_handler,
IRQF_DISABLED, "NSLU2 power button", NULL) < 0) {
printk(KERN_DEBUG "Power Button IRQ %d not available\n",
NSLU2_PB_IRQ);
return -EIO;
}
return 0;
}
static void __exit nslu2_power_exit(void)
{
if (!(machine_is_nslu2()))
return;
free_irq(NSLU2_RB_IRQ, NULL);
free_irq(NSLU2_PB_IRQ, NULL);
}
module_init(nslu2_power_init);
module_exit(nslu2_power_exit);
MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
MODULE_DESCRIPTION("NSLU2 Power/Reset driver");
MODULE_LICENSE("GPL");

161
arch/arm/mach-ixp4xx/nslu2-setup.c
View file

@ -3,27 +3,35 @@
*
* NSLU2 board-setup
*
* based ixdp425-setup.c:
* Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
*
* based on ixdp425-setup.c:
* Copyright (C) 2003-2004 MontaVista Software, Inc.
* based on nslu2-power.c:
* Copyright (C) 2005 Tower Technologies
*
* Author: Mark Rakes <mrakes at mac.com>
* Author: Rod Whitby <rod@whitby.id.au>
* Author: Alessandro Zummo <a.zummo@towertech.it>
* Maintainers: http://www.nslu2-linux.org/
*
* Fixed missing init_time in MACHINE_START kas11 10/22/04
* Changed to conform to new style __init ixdp425 kas11 10/22/04
*/
#include <linux/kernel.h>
#include <linux/if_ether.h>
#include <linux/irq.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/leds.h>
#include <linux/reboot.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/time.h>
#include <asm/io.h>
#include <asm/gpio.h>
static struct flash_platform_data nslu2_flash_data = {
.map_name = "cfi_probe",
@ -47,41 +55,43 @@ static struct i2c_gpio_platform_data nslu2_i2c_gpio_data = {
.scl_pin = NSLU2_SCL_PIN,
};
#ifdef CONFIG_LEDS_IXP4XX
static struct resource nslu2_led_resources[] = {
static struct i2c_board_info __initdata nslu2_i2c_board_info [] = {
{
.name = "ready", /* green led */
.start = NSLU2_LED_GRN_GPIO,
.end = NSLU2_LED_GRN_GPIO,
.flags = IXP4XX_GPIO_HIGH,
},
{
.name = "status", /* red led */
.start = NSLU2_LED_RED_GPIO,
.end = NSLU2_LED_RED_GPIO,
.flags = IXP4XX_GPIO_HIGH,
},
{
.name = "disk-1",
.start = NSLU2_LED_DISK1_GPIO,
.end = NSLU2_LED_DISK1_GPIO,
.flags = IXP4XX_GPIO_LOW,
},
{
.name = "disk-2",
.start = NSLU2_LED_DISK2_GPIO,
.end = NSLU2_LED_DISK2_GPIO,
.flags = IXP4XX_GPIO_LOW,
I2C_BOARD_INFO("rtc-x1205", 0x6f),
},
};
static struct platform_device nslu2_leds = {
.name = "IXP4XX-GPIO-LED",
.id = -1,
.num_resources = ARRAY_SIZE(nslu2_led_resources),
.resource = nslu2_led_resources,
static struct gpio_led nslu2_led_pins[] = {
{
.name = "ready", /* green led */
.gpio = NSLU2_LED_GRN_GPIO,
},
{
.name = "status", /* red led */
.gpio = NSLU2_LED_RED_GPIO,
},
{
.name = "disk-1",
.gpio = NSLU2_LED_DISK1_GPIO,
.active_low = true,
},
{
.name = "disk-2",
.gpio = NSLU2_LED_DISK2_GPIO,
.active_low = true,
},
};
static struct gpio_led_platform_data nslu2_led_data = {
.num_leds = ARRAY_SIZE(nslu2_led_pins),
.leds = nslu2_led_pins,
};
static struct platform_device nslu2_leds = {
.name = "leds-gpio",
.id = -1,
.dev.platform_data = &nslu2_led_data,
};
#endif
static struct platform_device nslu2_i2c_gpio = {
.name = "i2c-gpio",
@ -140,13 +150,29 @@ static struct platform_device nslu2_uart = {
.resource = nslu2_uart_resources,
};
/* Built-in 10/100 Ethernet MAC interfaces */
static struct eth_plat_info nslu2_plat_eth[] = {
{
.phy = 1,
.rxq = 3,
.txreadyq = 20,
}
};
static struct platform_device nslu2_eth[] = {
{
.name = "ixp4xx_eth",
.id = IXP4XX_ETH_NPEB,
.dev.platform_data = nslu2_plat_eth,
}
};
static struct platform_device *nslu2_devices[] __initdata = {
&nslu2_i2c_gpio,
&nslu2_flash,
&nslu2_beeper,
#ifdef CONFIG_LEDS_IXP4XX
&nslu2_leds,
#endif
&nslu2_eth[0],
};
static void nslu2_power_off(void)
@ -160,6 +186,25 @@ static void nslu2_power_off(void)
gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH);
}
static irqreturn_t nslu2_power_handler(int irq, void *dev_id)
{
/* Signal init to do the ctrlaltdel action, this will bypass init if
* it hasn't started and do a kernel_restart.
*/
ctrl_alt_del();
return IRQ_HANDLED;
}
static irqreturn_t nslu2_reset_handler(int irq, void *dev_id)
{
/* This is the paper-clip reset, it shuts the machine down directly.
*/
machine_power_off();
return IRQ_HANDLED;
}
static void __init nslu2_timer_init(void)
{
/* The xtal on this machine is non-standard. */
@ -175,13 +220,18 @@ static struct sys_timer nslu2_timer = {
static void __init nslu2_init(void)
{
DECLARE_MAC_BUF(mac_buf);
uint8_t __iomem *f;
int i;
ixp4xx_sys_init();
nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
nslu2_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
pm_power_off = nslu2_power_off;
i2c_register_board_info(0, nslu2_i2c_board_info,
ARRAY_SIZE(nslu2_i2c_board_info));
/*
* This is only useful on a modified machine, but it is valuable
@ -191,6 +241,43 @@ static void __init nslu2_init(void)
(void)platform_device_register(&nslu2_uart);
platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
pm_power_off = nslu2_power_off;
if (request_irq(gpio_to_irq(NSLU2_RB_GPIO), &nslu2_reset_handler,
IRQF_DISABLED | IRQF_TRIGGER_LOW,
"NSLU2 reset button", NULL) < 0) {
printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
gpio_to_irq(NSLU2_RB_GPIO));
}
if (request_irq(gpio_to_irq(NSLU2_PB_GPIO), &nslu2_power_handler,
IRQF_DISABLED | IRQF_TRIGGER_HIGH,
"NSLU2 power button", NULL) < 0) {
printk(KERN_DEBUG "Power Button IRQ %d not available\n",
gpio_to_irq(NSLU2_PB_GPIO));
}
/*
* Map in a portion of the flash and read the MAC address.
* Since it is stored in BE in the flash itself, we need to
* byteswap it if we're in LE mode.
*/
f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x40000);
if (f) {
for (i = 0; i < 6; i++)
#ifdef __ARMEB__
nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + i);
#else
nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + (i^3));
#endif
iounmap(f);
}
printk(KERN_INFO "NSLU2: Using MAC address %s for port 0\n",
print_mac(mac_buf, nslu2_plat_eth[0].hwaddr));
}
MACHINE_START(NSLU2, "Linksys NSLU2")

2
arch/arm/mach-pxa/Makefile
View file

@ -6,7 +6,7 @@
obj-y += clock.o devices.o generic.o irq.o dma.o time.o
obj-$(CONFIG_PXA25x) += pxa25x.o
obj-$(CONFIG_PXA27x) += pxa27x.o
obj-$(CONFIG_PXA3xx) += pxa3xx.o mfp.o
obj-$(CONFIG_PXA3xx) += pxa3xx.o mfp.o smemc.o
obj-$(CONFIG_CPU_PXA300) += pxa300.o
obj-$(CONFIG_CPU_PXA320) += pxa320.o

1
arch/arm/mach-pxa/cm-x270.c
View file

@ -29,6 +29,7 @@
#include <asm/mach/map.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/pxa2xx-regs.h>
#include <asm/arch/pxafb.h>
#include <asm/arch/ohci.h>
#include <asm/arch/mmc.h>

1
arch/arm/mach-pxa/devices.c
View file

@ -10,6 +10,7 @@
#include <asm/arch/mmc.h>
#include <asm/arch/irda.h>
#include <asm/arch/i2c.h>
#include <asm/arch/ohci.h>
#include "devices.h"

57
arch/arm/mach-pxa/generic.c
View file

@ -23,6 +23,7 @@
#include <linux/ioport.h>
#include <linux/pm.h>
#include <linux/string.h>
#include <linux/sysdev.h>
#include <asm/hardware.h>
#include <asm/irq.h>
@ -226,3 +227,59 @@ void __init pxa_map_io(void)
iotable_init(standard_io_desc, ARRAY_SIZE(standard_io_desc));
get_clk_frequency_khz(1);
}
#ifdef CONFIG_PM
static unsigned long saved_gplr[4];
static unsigned long saved_gpdr[4];
static unsigned long saved_grer[4];
static unsigned long saved_gfer[4];
static int pxa_gpio_suspend(struct sys_device *dev, pm_message_t state)
{
int i, gpio;
for (gpio = 0, i = 0; gpio < pxa_last_gpio; gpio += 32, i++) {
saved_gplr[i] = GPLR(gpio);
saved_gpdr[i] = GPDR(gpio);
saved_grer[i] = GRER(gpio);
saved_gfer[i] = GFER(gpio);
/* Clear GPIO transition detect bits */
GEDR(gpio) = GEDR(gpio);
}
return 0;
}
static int pxa_gpio_resume(struct sys_device *dev)
{
int i, gpio;
for (gpio = 0, i = 0; gpio < pxa_last_gpio; gpio += 32, i++) {
/* restore level with set/clear */
GPSR(gpio) = saved_gplr[i];
GPCR(gpio) = ~saved_gplr[i];
GRER(gpio) = saved_grer[i];
GFER(gpio) = saved_gfer[i];
GPDR(gpio) = saved_gpdr[i];
}
return 0;
}
#else
#define pxa_gpio_suspend NULL
#define pxa_gpio_resume NULL
#endif
struct sysdev_class pxa_gpio_sysclass = {
.name = "gpio",
.suspend = pxa_gpio_suspend,
.resume = pxa_gpio_resume,
};
static int __init pxa_gpio_init(void)
{
return sysdev_class_register(&pxa_gpio_sysclass);
}
core_initcall(pxa_gpio_init);

3
arch/arm/mach-pxa/generic.h
View file

@ -52,3 +52,6 @@ extern unsigned pxa3xx_get_memclk_frequency_10khz(void);
#define pxa3xx_get_clk_frequency_khz(x) (0)
#define pxa3xx_get_memclk_frequency_10khz() (0)
#endif
extern struct sysdev_class pxa_irq_sysclass;
extern struct sysdev_class pxa_gpio_sysclass;

62
arch/arm/mach-pxa/irq.c
View file

@ -15,6 +15,7 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/sysdev.h>
#include <asm/hardware.h>
#include <asm/irq.h>
@ -321,3 +322,64 @@ void __init pxa_init_irq_set_wake(int (*set_wake)(unsigned int, unsigned int))
pxa_low_gpio_chip.set_wake = set_wake;
pxa_muxed_gpio_chip.set_wake = set_wake;
}
#ifdef CONFIG_PM
static unsigned long saved_icmr[2];
static int pxa_irq_suspend(struct sys_device *dev, pm_message_t state)
{
switch (dev->id) {
case 0:
saved_icmr[0] = ICMR;
ICMR = 0;
break;
#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
case 1:
saved_icmr[1] = ICMR2;
ICMR2 = 0;
break;
#endif
default:
return -EINVAL;
}
return 0;
}
static int pxa_irq_resume(struct sys_device *dev)
{
switch (dev->id) {
case 0:
ICMR = saved_icmr[0];
ICLR = 0;
ICCR = 1;
break;
#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
case 1:
ICMR2 = saved_icmr[1];
ICLR2 = 0;
break;
#endif
default:
return -EINVAL;
}
return 0;
}
#else
#define pxa_irq_suspend NULL
#define pxa_irq_resume NULL
#endif
struct sysdev_class pxa_irq_sysclass = {
.name = "irq",
.suspend = pxa_irq_suspend,
.resume = pxa_irq_resume,
};
static int __init pxa_irq_init(void)
{
return sysdev_class_register(&pxa_irq_sysclass);
}
core_initcall(pxa_irq_init);

11
arch/arm/mach-pxa/mfp.c
View file

@ -22,6 +22,7 @@
#include <asm/hardware.h>
#include <asm/arch/mfp.h>
#include <asm/arch/mfp-pxa3xx.h>
#include <asm/arch/pxa3xx-regs.h>
/* mfp_spin_lock is used to ensure that MFP register configuration
* (most likely a read-modify-write operation) is atomic, and that
@ -223,11 +224,19 @@ static int pxa3xx_mfp_resume(struct sys_device *d)
struct pxa3xx_mfp_pin *p = &mfp_table[pin];
__mfp_config_run(p);
}
/* clear RDH bit when MFP settings are restored
*
* NOTE: the last 3 bits DxS are write-1-to-clear so carefully
* preserve them here in case they will be referenced later
*/
ASCR &= ~(ASCR_RDH | ASCR_D1S | ASCR_D2S | ASCR_D3S);
return 0;
}
static struct sysdev_class mfp_sysclass = {
set_kset_name("mfp"),
.name = "mfp",
.suspend = pxa3xx_mfp_suspend,
.resume = pxa3xx_mfp_resume,
};

1
arch/arm/mach-pxa/pcm027.c
View file

@ -29,6 +29,7 @@
#include <asm/mach/arch.h>
#include <asm/arch/hardware.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/pxa2xx-regs.h>
#include <asm/arch/pxa2xx_spi.h>
#include <asm/arch/pcm027.h>
#include "generic.h"

4
arch/arm/mach-pxa/poodle.c
View file

@ -164,7 +164,7 @@ static struct resource poodlets_resources[] = {
},
};
static unsigned long poodle_get_hsync_len(void)
static unsigned long poodle_get_hsync_invperiod(void)
{
return 0;
}
@ -174,7 +174,7 @@ static void poodle_null_hsync(void)
}
static struct corgits_machinfo poodle_ts_machinfo = {
.get_hsync_len = poodle_get_hsync_len,
.get_hsync_invperiod = poodle_get_hsync_invperiod,
.put_hsync = poodle_null_hsync,
.wait_hsync = poodle_null_hsync,
};

43
arch/arm/mach-pxa/pxa25x.c
View file

@ -21,6 +21,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/suspend.h>
#include <linux/sysdev.h>
#include <asm/hardware.h>
#include <asm/arch/irqs.h>
@ -141,11 +142,6 @@ static struct clk pxa25x_clks[] = {
#define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x
#define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x]
#define RESTORE_GPLEVEL(n) do { \
GPSR##n = sleep_save[SLEEP_SAVE_GPLR##n]; \
GPCR##n = ~sleep_save[SLEEP_SAVE_GPLR##n]; \
} while (0)
/*
* List of global PXA peripheral registers to preserve.
* More ones like CP and general purpose register values are preserved
@ -153,10 +149,6 @@ static struct clk pxa25x_clks[] = {
*/
enum { SLEEP_SAVE_START = 0,
SLEEP_SAVE_GPLR0, SLEEP_SAVE_GPLR1, SLEEP_SAVE_GPLR2,
SLEEP_SAVE_GPDR0, SLEEP_SAVE_GPDR1, SLEEP_SAVE_GPDR2,
SLEEP_SAVE_GRER0, SLEEP_SAVE_GRER1, SLEEP_SAVE_GRER2,
SLEEP_SAVE_GFER0, SLEEP_SAVE_GFER1, SLEEP_SAVE_GFER2,
SLEEP_SAVE_PGSR0, SLEEP_SAVE_PGSR1, SLEEP_SAVE_PGSR2,
SLEEP_SAVE_GAFR0_L, SLEEP_SAVE_GAFR0_U,
@ -165,7 +157,6 @@ enum { SLEEP_SAVE_START = 0,
SLEEP_SAVE_PSTR,
SLEEP_SAVE_ICMR,
SLEEP_SAVE_CKEN,
SLEEP_SAVE_SIZE
@ -174,17 +165,12 @@ enum { SLEEP_SAVE_START = 0,
static void pxa25x_cpu_pm_save(unsigned long *sleep_save)
{
SAVE(GPLR0); SAVE(GPLR1); SAVE(GPLR2);
SAVE(GPDR0); SAVE(GPDR1); SAVE(GPDR2);
SAVE(GRER0); SAVE(GRER1); SAVE(GRER2);
SAVE(GFER0); SAVE(GFER1); SAVE(GFER2);
SAVE(PGSR0); SAVE(PGSR1); SAVE(PGSR2);
SAVE(GAFR0_L); SAVE(GAFR0_U);
SAVE(GAFR1_L); SAVE(GAFR1_U);
SAVE(GAFR2_L); SAVE(GAFR2_U);
SAVE(ICMR); ICMR = 0;
SAVE(CKEN);
SAVE(PSTR);
@ -198,22 +184,14 @@ static void pxa25x_cpu_pm_restore(unsigned long *sleep_save)
PSPR = 0;
/* restore registers */
RESTORE_GPLEVEL(0); RESTORE_GPLEVEL(1); RESTORE_GPLEVEL(2);
RESTORE(GPDR0); RESTORE(GPDR1); RESTORE(GPDR2);
RESTORE(GAFR0_L); RESTORE(GAFR0_U);
RESTORE(GAFR1_L); RESTORE(GAFR1_U);
RESTORE(GAFR2_L); RESTORE(GAFR2_U);
RESTORE(GRER0); RESTORE(GRER1); RESTORE(GRER2);
RESTORE(GFER0); RESTORE(GFER1); RESTORE(GFER2);
RESTORE(PGSR0); RESTORE(PGSR1); RESTORE(PGSR2);
PSSR = PSSR_RDH | PSSR_PH;
RESTORE(CKEN);
ICLR = 0;
ICCR = 1;
RESTORE(ICMR);
RESTORE(PSTR);
}
@ -304,9 +282,17 @@ static struct platform_device *pxa25x_devices[] __initdata = {
&pxa25x_device_assp,
};
static struct sys_device pxa25x_sysdev[] = {
{
.cls = &pxa_irq_sysclass,
}, {
.cls = &pxa_gpio_sysclass,
},
};
static int __init pxa25x_init(void)
{
int ret = 0;
int i, ret = 0;
/* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */
if (cpu_is_pxa25x())
@ -320,9 +306,18 @@ static int __init pxa25x_init(void)
pxa25x_init_pm();
for (i = 0; i < ARRAY_SIZE(pxa25x_sysdev); i++) {
ret = sysdev_register(&pxa25x_sysdev[i]);
if (ret)
pr_err("failed to register sysdev[%d]\n", i);
}
ret = platform_add_devices(pxa25x_devices,
ARRAY_SIZE(pxa25x_devices));
if (ret)
return ret;
}
/* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */
if (cpu_is_pxa25x())
ret = platform_device_register(&pxa_device_hwuart);

49
arch/arm/mach-pxa/pxa27x.c
View file

@ -16,6 +16,7 @@
#include <linux/init.h>
#include <linux/suspend.h>
#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <asm/hardware.h>
#include <asm/irq.h>
@ -171,11 +172,6 @@ static struct clk pxa27x_clks[] = {
#define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x
#define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x]
#define RESTORE_GPLEVEL(n) do { \
GPSR##n = sleep_save[SLEEP_SAVE_GPLR##n]; \
GPCR##n = ~sleep_save[SLEEP_SAVE_GPLR##n]; \
} while (0)
/*
* List of global PXA peripheral registers to preserve.
* More ones like CP and general purpose register values are preserved
@ -183,10 +179,6 @@ static struct clk pxa27x_clks[] = {
*/
enum { SLEEP_SAVE_START = 0,
SLEEP_SAVE_GPLR0, SLEEP_SAVE_GPLR1, SLEEP_SAVE_GPLR2, SLEEP_SAVE_GPLR3,
SLEEP_SAVE_GPDR0, SLEEP_SAVE_GPDR1, SLEEP_SAVE_GPDR2, SLEEP_SAVE_GPDR3,
SLEEP_SAVE_GRER0, SLEEP_SAVE_GRER1, SLEEP_SAVE_GRER2, SLEEP_SAVE_GRER3,
SLEEP_SAVE_GFER0, SLEEP_SAVE_GFER1, SLEEP_SAVE_GFER2, SLEEP_SAVE_GFER3,
SLEEP_SAVE_PGSR0, SLEEP_SAVE_PGSR1, SLEEP_SAVE_PGSR2, SLEEP_SAVE_PGSR3,
SLEEP_SAVE_GAFR0_L, SLEEP_SAVE_GAFR0_U,
@ -196,7 +188,6 @@ enum { SLEEP_SAVE_START = 0,
SLEEP_SAVE_PSTR,
SLEEP_SAVE_ICMR,
SLEEP_SAVE_CKEN,
SLEEP_SAVE_MDREFR,
@ -208,10 +199,6 @@ enum { SLEEP_SAVE_START = 0,
void pxa27x_cpu_pm_save(unsigned long *sleep_save)
{
SAVE(GPLR0); SAVE(GPLR1); SAVE(GPLR2); SAVE(GPLR3);
SAVE(GPDR0); SAVE(GPDR1); SAVE(GPDR2); SAVE(GPDR3);
SAVE(GRER0); SAVE(GRER1); SAVE(GRER2); SAVE(GRER3);
SAVE(GFER0); SAVE(GFER1); SAVE(GFER2); SAVE(GFER3);
SAVE(PGSR0); SAVE(PGSR1); SAVE(PGSR2); SAVE(PGSR3);
SAVE(GAFR0_L); SAVE(GAFR0_U);
@ -223,12 +210,8 @@ void pxa27x_cpu_pm_save(unsigned long *sleep_save)
SAVE(PWER); SAVE(PCFR); SAVE(PRER);
SAVE(PFER); SAVE(PKWR);
SAVE(ICMR); ICMR = 0;
SAVE(CKEN);
SAVE(PSTR);
/* Clear GPIO transition detect bits */
GEDR0 = GEDR0; GEDR1 = GEDR1; GEDR2 = GEDR2; GEDR3 = GEDR3;
}
void pxa27x_cpu_pm_restore(unsigned long *sleep_save)
@ -237,15 +220,10 @@ void pxa27x_cpu_pm_restore(unsigned long *sleep_save)
PSPR = 0;
/* restore registers */
RESTORE_GPLEVEL(0); RESTORE_GPLEVEL(1);
RESTORE_GPLEVEL(2); RESTORE_GPLEVEL(3);
RESTORE(GPDR0); RESTORE(GPDR1); RESTORE(GPDR2); RESTORE(GPDR3);
RESTORE(GAFR0_L); RESTORE(GAFR0_U);
RESTORE(GAFR1_L); RESTORE(GAFR1_U);
RESTORE(GAFR2_L); RESTORE(GAFR2_U);
RESTORE(GAFR3_L); RESTORE(GAFR3_U);
RESTORE(GRER0); RESTORE(GRER1); RESTORE(GRER2); RESTORE(GRER3);
RESTORE(GFER0); RESTORE(GFER1); RESTORE(GFER2); RESTORE(GFER3);
RESTORE(PGSR0); RESTORE(PGSR1); RESTORE(PGSR2); RESTORE(PGSR3);
RESTORE(MDREFR);
@ -256,9 +234,6 @@ void pxa27x_cpu_pm_restore(unsigned long *sleep_save)
RESTORE(CKEN);
ICLR = 0;
ICCR = 1;
RESTORE(ICMR);
RESTORE(PSTR);
}
@ -409,9 +384,22 @@ static struct platform_device *devices[] __initdata = {
&pxa27x_device_ssp3,
};
static struct sys_device pxa27x_sysdev[] = {
{
.id = 0,
.cls = &pxa_irq_sysclass,
}, {
.id = 1,
.cls = &pxa_irq_sysclass,
}, {
.cls = &pxa_gpio_sysclass,
},
};
static int __init pxa27x_init(void)
{
int ret = 0;
int i, ret = 0;
if (cpu_is_pxa27x()) {
clks_register(pxa27x_clks, ARRAY_SIZE(pxa27x_clks));
@ -420,8 +408,15 @@ static int __init pxa27x_init(void)
pxa27x_init_pm();
for (i = 0; i < ARRAY_SIZE(pxa27x_sysdev); i++) {
ret = sysdev_register(&pxa27x_sysdev[i]);
if (ret)
pr_err("failed to register sysdev[%d]\n", i);
}
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
}
return ret;
}

99
arch/arm/mach-pxa/pxa3xx.c
View file

@ -20,6 +20,7 @@
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/sysdev.h>
#include <asm/hardware.h>
#include <asm/arch/pxa3xx-regs.h>
@ -39,6 +40,7 @@
#define RO_CLK 60000000
#define ACCR_D0CS (1 << 26)
#define ACCR_PCCE (1 << 11)
/* crystal frequency to static memory controller multiplier (SMCFS) */
static unsigned char smcfs_mult[8] = { 6, 0, 8, 0, 0, 16, };
@ -203,7 +205,6 @@ static struct clk pxa3xx_clks[] = {
};
#ifdef CONFIG_PM
#define SLEEP_SAVE_SIZE 4
#define ISRAM_START 0x5c000000
#define ISRAM_SIZE SZ_256K
@ -211,25 +212,29 @@ static struct clk pxa3xx_clks[] = {
static void __iomem *sram;
static unsigned long wakeup_src;
#define SAVE(x) sleep_save[SLEEP_SAVE_##x] = x
#define RESTORE(x) x = sleep_save[SLEEP_SAVE_##x]
enum { SLEEP_SAVE_START = 0,
SLEEP_SAVE_CKENA,
SLEEP_SAVE_CKENB,
SLEEP_SAVE_ACCR,
SLEEP_SAVE_SIZE,
};
static void pxa3xx_cpu_pm_save(unsigned long *sleep_save)
{
pr_debug("PM: CKENA=%08x CKENB=%08x\n", CKENA, CKENB);
if (CKENA & (1 << CKEN_USBH)) {
printk(KERN_ERR "PM: USB host clock not stopped?\n");
CKENA &= ~(1 << CKEN_USBH);
}
// CKENA |= 1 << (CKEN_ISC & 31);
/*
* Low power modes require the HSIO2 clock to be enabled.
*/
CKENB |= 1 << (CKEN_HSIO2 & 31);
SAVE(CKENA);
SAVE(CKENB);
SAVE(ACCR);
}
static void pxa3xx_cpu_pm_restore(unsigned long *sleep_save)
{
CKENB &= ~(1 << (CKEN_HSIO2 & 31));
RESTORE(ACCR);
RESTORE(CKENA);
RESTORE(CKENB);
}
/*
@ -265,6 +270,46 @@ static void pxa3xx_cpu_standby(unsigned int pwrmode)
printk("PM: AD2D0SR=%08x ASCR=%08x\n", AD2D0SR, ASCR);
}
/*
* NOTE: currently, the OBM (OEM Boot Module) binary comes along with
* PXA3xx development kits assumes that the resuming process continues
* with the address stored within the first 4 bytes of SDRAM. The PSPR
* register is used privately by BootROM and OBM, and _must_ be set to
* 0x5c014000 for the moment.
*/
static void pxa3xx_cpu_pm_suspend(void)
{
volatile unsigned long *p = (volatile void *)0xc0000000;
unsigned long saved_data = *p;
extern void pxa3xx_cpu_suspend(void);
extern void pxa3xx_cpu_resume(void);
/* resuming from D2 requires the HSIO2/BOOT/TPM clocks enabled */
CKENA |= (1 << CKEN_BOOT) | (1 << CKEN_TPM);
CKENB |= 1 << (CKEN_HSIO2 & 0x1f);
/* clear and setup wakeup source */
AD3SR = ~0;
AD3ER = wakeup_src;
ASCR = ASCR;
ARSR = ARSR;
PCFR |= (1u << 13); /* L1_DIS */
PCFR &= ~((1u << 12) | (1u << 1)); /* L0_EN | SL_ROD */
PSPR = 0x5c014000;
/* overwrite with the resume address */
*p = virt_to_phys(pxa3xx_cpu_resume);
pxa3xx_cpu_suspend();
*p = saved_data;
AD3ER = 0;
}
static void pxa3xx_cpu_pm_enter(suspend_state_t state)
{
/*
@ -279,6 +324,7 @@ static void pxa3xx_cpu_pm_enter(suspend_state_t state)
break;
case PM_SUSPEND_MEM:
pxa3xx_cpu_pm_suspend();
break;
}
}
@ -452,9 +498,21 @@ static struct platform_device *devices[] __initdata = {
&pxa3xx_device_ssp4,
};
static struct sys_device pxa3xx_sysdev[] = {
{
.id = 0,
.cls = &pxa_irq_sysclass,
}, {
.id = 1,
.cls = &pxa_irq_sysclass,
}, {
.cls = &pxa_gpio_sysclass,
},
};
static int __init pxa3xx_init(void)
{
int ret = 0;
int i, ret = 0;
if (cpu_is_pxa3xx()) {
clks_register(pxa3xx_clks, ARRAY_SIZE(pxa3xx_clks));
@ -464,9 +522,16 @@ static int __init pxa3xx_init(void)
pxa3xx_init_pm();
return platform_add_devices(devices, ARRAY_SIZE(devices));
for (i = 0; i < ARRAY_SIZE(pxa3xx_sysdev); i++) {
ret = sysdev_register(&pxa3xx_sysdev[i]);
if (ret)
pr_err("failed to register sysdev[%d]\n", i);
}
return 0;
ret = platform_add_devices(devices, ARRAY_SIZE(devices));
}
return ret;
}
subsys_initcall(pxa3xx_init);

102
arch/arm/mach-pxa/sleep.S
View file

@ -50,6 +50,108 @@ pxa_cpu_save_sp:
str r0, [r1]
ldr pc, [sp], #4
#ifdef CONFIG_PXA3xx
/*
* pxa3xx_cpu_suspend() - forces CPU into sleep state (S2D3C4)
*
* NOTE: unfortunately, pxa_cpu_save_cp can not be reused here since
* the auxiliary control register address is different between pxa3xx
* and pxa{25x,27x}
*/
ENTRY(pxa3xx_cpu_suspend)
#ifndef CONFIG_IWMMXT
mra r2, r3, acc0
#endif
stmfd sp!, {r2 - r12, lr} @ save registers on stack
mrc p14, 0, r3, c6, c0, 0 @ clock configuration, for turbo mode
mrc p15, 0, r4, c15, c1, 0 @ CP access reg
mrc p15, 0, r5, c13, c0, 0 @ PID
mrc p15, 0, r6, c3, c0, 0 @ domain ID
mrc p15, 0, r7, c2, c0, 0 @ translation table base addr
mrc p15, 0, r8, c1, c0, 1 @ auxiliary control reg
mrc p15, 0, r9, c1, c0, 0 @ control reg
bic r3, r3, #2 @ clear frequency change bit
@ store them plus current virtual stack ptr on stack
mov r10, sp
stmfd sp!, {r3 - r10}
@ store physical address of stack pointer
mov r0, sp
bl sleep_phys_sp
ldr r1, =sleep_save_sp
str r0, [r1]
@ clean data cache
bl xsc3_flush_kern_cache_all
mov r0, #0x06 @ S2D3C4 mode
mcr p14, 0, r0, c7, c0, 0 @ enter sleep
20: b 20b @ waiting for sleep
.data
.align 5
/*
* pxa3xx_cpu_resume
*/
ENTRY(pxa3xx_cpu_resume)
mov r0, #PSR_I_BIT | PSR_F_BIT | SVC_MODE @ set SVC, irqs off
msr cpsr_c, r0
ldr r0, sleep_save_sp @ stack phys addr
ldmfd r0, {r3 - r9, sp} @ CP regs + virt stack ptr
mov r1, #0
mcr p15, 0, r1, c7, c7, 0 @ invalidate I & D caches, BTB
mcr p15, 0, r1, c7, c10, 4 @ drain write (&fill) buffer
mcr p15, 0, r1, c7, c5, 4 @ flush prefetch buffer
mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs
mcr p14, 0, r3, c6, c0, 0 @ clock configuration, turbo mode.
mcr p15, 0, r4, c15, c1, 0 @ CP access reg
mcr p15, 0, r5, c13, c0, 0 @ PID
mcr p15, 0, r6, c3, c0, 0 @ domain ID
mcr p15, 0, r7, c2, c0, 0 @ translation table base addr
mcr p15, 0, r8, c1, c0, 1 @ auxiliary control reg
@ temporarily map resume_turn_on_mmu into the page table,
@ otherwise prefetch abort occurs after MMU is turned on
mov r1, r7
bic r1, r1, #0x00ff
bic r1, r1, #0x3f00
ldr r2, =0x542e
adr r3, resume_turn_on_mmu
mov r3, r3, lsr #20
orr r4, r2, r3, lsl #20
ldr r5, [r1, r3, lsl #2]
str r4, [r1, r3, lsl #2]
@ Mapping page table address in the page table
mov r6, r1, lsr #20
orr r7, r2, r6, lsl #20
ldr r8, [r1, r6, lsl #2]
str r7, [r1, r6, lsl #2]
ldr r2, =pxa3xx_resume_after_mmu @ absolute virtual address
b resume_turn_on_mmu @ cache align execution
.text
pxa3xx_resume_after_mmu:
/* restore the temporary mapping */
str r5, [r1, r3, lsl #2]
str r8, [r1, r6, lsl #2]
b resume_after_mmu
#endif /* CONFIG_PXA3xx */
#ifdef CONFIG_PXA27x
/*
* pxa27x_cpu_suspend()

88
arch/arm/mach-pxa/smemc.c Normal file
View file

@ -0,0 +1,88 @@
/*
* Static Memory Controller
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/sysdev.h>
#define SMEMC_PHYS_BASE (0x4A000000)
#define SMEMC_PHYS_SIZE (0x90)
#define MSC0 (0x08) /* Static Memory Controller Register 0 */
#define MSC1 (0x0C) /* Static Memory Controller Register 1 */
#define SXCNFG (0x1C) /* Synchronous Static Memory Control Register */
#define MEMCLKCFG (0x68) /* Clock Configuration */
#define CSADRCFG0 (0x80) /* Address Configuration Register for CS0 */
#define CSADRCFG1 (0x84) /* Address Configuration Register for CS1 */
#define CSADRCFG2 (0x88) /* Address Configuration Register for CS2 */
#define CSADRCFG3 (0x8C) /* Address Configuration Register for CS3 */
#ifdef CONFIG_PM
static void __iomem *smemc_mmio_base;
static unsigned long msc[2];
static unsigned long sxcnfg, memclkcfg;
static unsigned long csadrcfg[4];
static int pxa3xx_smemc_suspend(struct sys_device *dev, pm_message_t state)
{
msc[0] = __raw_readl(smemc_mmio_base + MSC0);
msc[1] = __raw_readl(smemc_mmio_base + MSC1);
sxcnfg = __raw_readl(smemc_mmio_base + SXCNFG);
memclkcfg = __raw_readl(smemc_mmio_base + MEMCLKCFG);
csadrcfg[0] = __raw_readl(smemc_mmio_base + CSADRCFG0);
csadrcfg[1] = __raw_readl(smemc_mmio_base + CSADRCFG1);
csadrcfg[2] = __raw_readl(smemc_mmio_base + CSADRCFG2);
csadrcfg[3] = __raw_readl(smemc_mmio_base + CSADRCFG3);
return 0;
}
static int pxa3xx_smemc_resume(struct sys_device *dev)
{
__raw_writel(msc[0], smemc_mmio_base + MSC0);
__raw_writel(msc[1], smemc_mmio_base + MSC1);
__raw_writel(sxcnfg, smemc_mmio_base + SXCNFG);
__raw_writel(memclkcfg, smemc_mmio_base + MEMCLKCFG);
__raw_writel(csadrcfg[0], smemc_mmio_base + CSADRCFG0);
__raw_writel(csadrcfg[1], smemc_mmio_base + CSADRCFG1);
__raw_writel(csadrcfg[2], smemc_mmio_base + CSADRCFG2);
__raw_writel(csadrcfg[3], smemc_mmio_base + CSADRCFG3);
return 0;
}
static struct sysdev_class smemc_sysclass = {
.name = "smemc",
.suspend = pxa3xx_smemc_suspend,
.resume = pxa3xx_smemc_resume,
};
static struct sys_device smemc_sysdev = {
.id = 0,
.cls = &smemc_sysclass,
};
static int __init smemc_init(void)
{
int ret = 0;
if (cpu_is_pxa3xx()) {
smemc_mmio_base = ioremap(SMEMC_PHYS_BASE, SMEMC_PHYS_SIZE);
if (smemc_mmio_base == NULL)
return -ENODEV;
ret = sysdev_class_register(&smemc_sysclass);
if (ret)
return ret;
ret = sysdev_register(&smemc_sysdev);
}
return ret;
}
subsys_initcall(smemc_init);
#endif

1
arch/arm/mach-pxa/spitz.c
View file

@ -36,6 +36,7 @@
#include <asm/mach/irq.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/pxa2xx-regs.h>
#include <asm/arch/irda.h>
#include <asm/arch/mmc.h>
#include <asm/arch/ohci.h>

1
arch/arm/mach-pxa/tosa.c
View file

@ -29,6 +29,7 @@
#include <asm/irq.h>
#include <asm/system.h>
#include <asm/arch/pxa-regs.h>
#include <asm/arch/pxa2xx-regs.h>
#include <asm/arch/irda.h>
#include <asm/arch/mmc.h>
#include <asm/arch/udc.h>

21
arch/arm/mach-realview/Kconfig
View file

@ -7,24 +7,21 @@ config MACH_REALVIEW_EB
help
Include support for the ARM(R) RealView Emulation Baseboard platform.
config REALVIEW_MPCORE
bool "Support MPcore tile"
config REALVIEW_EB_ARM11MP
bool "Support ARM11MPCore tile"
depends on MACH_REALVIEW_EB
select CACHE_L2X0
help
Enable support for the MPCore tile on the Realview platform.
Since there are device address and interrupt differences, a
kernel built with this option enabled is not compatible with
other tiles.
Enable support for the ARM11MPCore tile on the Realview platform.
config REALVIEW_MPCORE_REVB
bool "Support MPcore RevB tile"
depends on REALVIEW_MPCORE
config REALVIEW_EB_ARM11MP_REVB
bool "Support ARM11MPCore RevB tile"
depends on REALVIEW_EB_ARM11MP
default n
help
Enable support for the MPCore RevB tile on the Realview platform.
Since there are device address differences, a
Enable support for the ARM11MPCore RevB tile on the Realview
platform. Since there are device address differences, a
kernel built with this option enabled is not compatible with
other tiles.
other revisions of the ARM11MPCore tile.
endmenu

3
arch/arm/mach-realview/Makefile
View file

@ -4,6 +4,5 @@
obj-y := core.o clock.o
obj-$(CONFIG_MACH_REALVIEW_EB) += realview_eb.o
obj-$(CONFIG_SMP) += platsmp.o headsmp.o
obj-$(CONFIG_SMP) += platsmp.o headsmp.o localtimer.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
obj-$(CONFIG_LOCAL_TIMERS) += localtimer.o

179
arch/arm/mach-realview/core.c
View file

@ -25,6 +25,8 @@
#include <linux/interrupt.h>
#include <linux/amba/bus.h>
#include <linux/amba/clcd.h>
#include <linux/clocksource.h>
#include <linux/clockchips.h>
#include <asm/system.h>
#include <asm/hardware.h>
@ -37,7 +39,6 @@
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <asm/mach/mmc.h>
@ -48,6 +49,9 @@
#define REALVIEW_REFCOUNTER (__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_24MHz_OFFSET)
/* used by entry-macro.S */
void __iomem *gic_cpu_base_addr;
/*
* This is the RealView sched_clock implementation. This has
* a resolution of 41.7ns, and a maximum value of about 179s.
@ -121,26 +125,6 @@ struct platform_device realview_flash_device = {
.resource = &realview_flash_resource,
};
static struct resource realview_smc91x_resources[] = {
[0] = {
.start = REALVIEW_ETH_BASE,
.end = REALVIEW_ETH_BASE + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_ETH,
.end = IRQ_ETH,
.flags = IORESOURCE_IRQ,
},
};
struct platform_device realview_smc91x_device = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(realview_smc91x_resources),
.resource = realview_smc91x_resources,
};
static struct resource realview_i2c_resource = {
.start = REALVIEW_I2C_BASE,
.end = REALVIEW_I2C_BASE + SZ_4K - 1,
@ -484,45 +468,64 @@ void realview_leds_event(led_event_t ledevt)
#define TICKS2USECS(x) ((x) / TICKS_PER_uSEC)
#endif
/*
* Returns number of ms since last clock interrupt. Note that interrupts
* will have been disabled by do_gettimeoffset()
*/
static unsigned long realview_gettimeoffset(void)
static void timer_set_mode(enum clock_event_mode mode,
struct clock_event_device *clk)
{
unsigned long ticks1, ticks2, status;
unsigned long ctrl;
/*
* Get the current number of ticks. Note that there is a race
* condition between us reading the timer and checking for
* an interrupt. We get around this by ensuring that the
* counter has not reloaded between our two reads.
*/
ticks2 = readl(TIMER0_VA_BASE + TIMER_VALUE) & 0xffff;
do {
ticks1 = ticks2;
status = __raw_readl(__io_address(REALVIEW_GIC_DIST_BASE + GIC_DIST_PENDING_SET)
+ ((IRQ_TIMERINT0_1 >> 5) << 2));
ticks2 = readl(TIMER0_VA_BASE + TIMER_VALUE) & 0xffff;
} while (ticks2 > ticks1);
switch(mode) {
case CLOCK_EVT_MODE_PERIODIC:
writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_LOAD);
/*
* Number of ticks since last interrupt.
*/
ticks1 = TIMER_RELOAD - ticks2;
ctrl = TIMER_CTRL_PERIODIC;
ctrl |= TIMER_CTRL_32BIT | TIMER_CTRL_IE | TIMER_CTRL_ENABLE;
break;
case CLOCK_EVT_MODE_ONESHOT:
/* period set, and timer enabled in 'next_event' hook */
ctrl = TIMER_CTRL_ONESHOT;
ctrl |= TIMER_CTRL_32BIT | TIMER_CTRL_IE;
break;
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
default:
ctrl = 0;
}
/*
* Interrupt pending? If so, we've reloaded once already.
*
* FIXME: Need to check this is effectively timer 0 that expires
*/
if (status & IRQMASK_TIMERINT0_1)
ticks1 += TIMER_RELOAD;
writel(ctrl, TIMER0_VA_BASE + TIMER_CTRL);
}
/*
* Convert the ticks to usecs
*/
return TICKS2USECS(ticks1);
static int timer_set_next_event(unsigned long evt,
struct clock_event_device *unused)
{
unsigned long ctrl = readl(TIMER0_VA_BASE + TIMER_CTRL);
writel(evt, TIMER0_VA_BASE + TIMER_LOAD);
writel(ctrl | TIMER_CTRL_ENABLE, TIMER0_VA_BASE + TIMER_CTRL);
return 0;
}
static struct clock_event_device timer0_clockevent = {
.name = "timer0",
.shift = 32,
.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
.set_mode = timer_set_mode,
.set_next_event = timer_set_next_event,
.rating = 300,
.cpumask = CPU_MASK_ALL,
};
static void __init realview_clockevents_init(unsigned int timer_irq)
{
timer0_clockevent.irq = timer_irq;
timer0_clockevent.mult =
div_sc(1000000, NSEC_PER_SEC, timer0_clockevent.shift);
timer0_clockevent.max_delta_ns =
clockevent_delta2ns(0xffffffff, &timer0_clockevent);
timer0_clockevent.min_delta_ns =
clockevent_delta2ns(0xf, &timer0_clockevent);
clockevents_register_device(&timer0_clockevent);
}
/*
@ -530,15 +533,12 @@ static unsigned long realview_gettimeoffset(void)
*/
static irqreturn_t realview_timer_interrupt(int irq, void *dev_id)
{
// ...clear the interrupt
struct clock_event_device *evt = &timer0_clockevent;
/* clear the interrupt */
writel(1, TIMER0_VA_BASE + TIMER_INTCLR);
timer_tick();
#if defined(CONFIG_SMP) && !defined(CONFIG_LOCAL_TIMERS)
smp_send_timer();
update_process_times(user_mode(get_irq_regs()));
#endif
evt->event_handler(evt);
return IRQ_HANDLED;
}
@ -549,13 +549,49 @@ static struct irqaction realview_timer_irq = {
.handler = realview_timer_interrupt,
};
static cycle_t realview_get_cycles(void)
{
return ~readl(TIMER3_VA_BASE + TIMER_VALUE);
}
static struct clocksource clocksource_realview = {
.name = "timer3",
.rating = 200,
.read = realview_get_cycles,
.mask = CLOCKSOURCE_MASK(32),
.shift = 20,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
};
static void __init realview_clocksource_init(void)
{
/* setup timer 0 as free-running clocksource */
writel(0, TIMER3_VA_BASE + TIMER_CTRL);
writel(0xffffffff, TIMER3_VA_BASE + TIMER_LOAD);
writel(0xffffffff, TIMER3_VA_BASE + TIMER_VALUE);
writel(TIMER_CTRL_32BIT | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC,
TIMER3_VA_BASE + TIMER_CTRL);
clocksource_realview.mult =
clocksource_khz2mult(1000, clocksource_realview.shift);
clocksource_register(&clocksource_realview);
}
/*
* Set up timer interrupt, and return the current time in seconds.
* Set up the clock source and clock events devices
*/
static void __init realview_timer_init(void)
void __init realview_timer_init(unsigned int timer_irq)
{
u32 val;
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
/*
* The dummy clock device has to be registered before the main device
* so that the latter will broadcast the clock events
*/
local_timer_setup(smp_processor_id());
#endif
/*
* set clock frequency:
* REALVIEW_REFCLK is 32KHz
@ -576,18 +612,11 @@ static void __init realview_timer_init(void)
writel(0, TIMER2_VA_BASE + TIMER_CTRL);
writel(0, TIMER3_VA_BASE + TIMER_CTRL);
writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_LOAD);
writel(TIMER_RELOAD, TIMER0_VA_BASE + TIMER_VALUE);
writel(TIMER_DIVISOR | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC |
TIMER_CTRL_IE, TIMER0_VA_BASE + TIMER_CTRL);
/*
* Make irqs happen for the system timer
*/
setup_irq(IRQ_TIMERINT0_1, &realview_timer_irq);
}
setup_irq(timer_irq, &realview_timer_irq);
struct sys_timer realview_timer = {
.init = realview_timer_init,
.offset = realview_gettimeoffset,
};
realview_clocksource_init();
realview_clockevents_init(timer_irq);
}

69
arch/arm/mach-realview/core.h
View file

@ -27,8 +27,6 @@
#include <asm/leds.h>
#include <asm/io.h>
extern struct sys_timer realview_timer;
#define AMBA_DEVICE(name,busid,base,plat) \
static struct amba_device name##_device = { \
.dev = { \
@ -46,74 +44,19 @@ static struct amba_device name##_device = { \
/* .dma = base##_DMA,*/ \
}
/*
* These devices are connected via the core APB bridge
*/
#define GPIO2_IRQ { IRQ_GPIOINT2, NO_IRQ }
#define GPIO2_DMA { 0, 0 }
#define GPIO3_IRQ { IRQ_GPIOINT3, NO_IRQ }
#define GPIO3_DMA { 0, 0 }
#define AACI_IRQ { IRQ_AACI, NO_IRQ }
#define AACI_DMA { 0x80, 0x81 }
#define MMCI0_IRQ { IRQ_MMCI0A,IRQ_MMCI0B }
#define MMCI0_DMA { 0x84, 0 }
#define KMI0_IRQ { IRQ_KMI0, NO_IRQ }
#define KMI0_DMA { 0, 0 }
#define KMI1_IRQ { IRQ_KMI1, NO_IRQ }
#define KMI1_DMA { 0, 0 }
/*
* These devices are connected directly to the multi-layer AHB switch
*/
#define SMC_IRQ { NO_IRQ, NO_IRQ }
#define SMC_DMA { 0, 0 }
#define MPMC_IRQ { NO_IRQ, NO_IRQ }
#define MPMC_DMA { 0, 0 }
#define CLCD_IRQ { IRQ_CLCDINT, NO_IRQ }
#define CLCD_DMA { 0, 0 }
#define DMAC_IRQ { IRQ_DMAINT, NO_IRQ }
#define DMAC_DMA { 0, 0 }
/*
* These devices are connected via the core APB bridge
*/
#define SCTL_IRQ { NO_IRQ, NO_IRQ }
#define SCTL_DMA { 0, 0 }
#define WATCHDOG_IRQ { IRQ_WDOGINT, NO_IRQ }
#define WATCHDOG_DMA { 0, 0 }
#define GPIO0_IRQ { IRQ_GPIOINT0, NO_IRQ }
#define GPIO0_DMA { 0, 0 }
#define GPIO1_IRQ { IRQ_GPIOINT1, NO_IRQ }
#define GPIO1_DMA { 0, 0 }
#define RTC_IRQ { IRQ_RTCINT, NO_IRQ }
#define RTC_DMA { 0, 0 }
/*
* These devices are connected via the DMA APB bridge
*/
#define SCI_IRQ { IRQ_SCIINT, NO_IRQ }
#define SCI_DMA { 7, 6 }
#define UART0_IRQ { IRQ_UARTINT0, NO_IRQ }
#define UART0_DMA { 15, 14 }
#define UART1_IRQ { IRQ_UARTINT1, NO_IRQ }
#define UART1_DMA { 13, 12 }
#define UART2_IRQ { IRQ_UARTINT2, NO_IRQ }
#define UART2_DMA { 11, 10 }
#define UART3_IRQ { IRQ_UART3, NO_IRQ }
#define UART3_DMA { 0x86, 0x87 }
#define SSP_IRQ { IRQ_SSPINT, NO_IRQ }
#define SSP_DMA { 9, 8 }
extern struct platform_device realview_flash_device;
extern struct platform_device realview_smc91x_device;
extern struct platform_device realview_i2c_device;
extern struct mmc_platform_data realview_mmc0_plat_data;
extern struct mmc_platform_data realview_mmc1_plat_data;
extern struct clk realview_clcd_clk;
extern struct clcd_board clcd_plat_data;
extern void __iomem *gic_cpu_base_addr;
#ifdef CONFIG_LOCAL_TIMERS
extern void __iomem *twd_base_addr;
extern unsigned int twd_size;
#endif
extern void realview_leds_event(led_event_t ledevt);
extern void realview_timer_init(unsigned int timer_irq);
#endif

136
arch/arm/mach-realview/localtimer.c
View file

@ -14,19 +14,75 @@
#include <linux/device.h>
#include <linux/smp.h>
#include <linux/jiffies.h>
#include <linux/percpu.h>
#include <linux/clockchips.h>
#include <linux/irq.h>
#include <asm/mach/time.h>
#include <asm/hardware/arm_twd.h>
#include <asm/hardware/gic.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/irq.h>
#define TWD_BASE(cpu) (__io_address(REALVIEW_TWD_BASE) + \
((cpu) * REALVIEW_TWD_SIZE))
static DEFINE_PER_CPU(struct clock_event_device, local_clockevent);
/*
* Used on SMP for either the local timer or IPI_TIMER
*/
void local_timer_interrupt(void)
{
struct clock_event_device *clk = &__get_cpu_var(local_clockevent);
clk->event_handler(clk);
}
#ifdef CONFIG_LOCAL_TIMERS
#define TWD_BASE(cpu) (twd_base_addr + (cpu) * twd_size)
/* set up by the platform code */
void __iomem *twd_base_addr;
unsigned int twd_size;
static unsigned long mpcore_timer_rate;
static void local_timer_set_mode(enum clock_event_mode mode,
struct clock_event_device *clk)
{
void __iomem *base = TWD_BASE(smp_processor_id());
unsigned long ctrl;
switch(mode) {
case CLOCK_EVT_MODE_PERIODIC:
/* timer load already set up */
ctrl = TWD_TIMER_CONTROL_ENABLE | TWD_TIMER_CONTROL_IT_ENABLE
| TWD_TIMER_CONTROL_PERIODIC;
break;
case CLOCK_EVT_MODE_ONESHOT:
/* period set, and timer enabled in 'next_event' hook */
ctrl = TWD_TIMER_CONTROL_IT_ENABLE | TWD_TIMER_CONTROL_ONESHOT;
break;
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
default:
ctrl = 0;
}
__raw_writel(ctrl, base + TWD_TIMER_CONTROL);
}
static int local_timer_set_next_event(unsigned long evt,
struct clock_event_device *unused)
{
void __iomem *base = TWD_BASE(smp_processor_id());
unsigned long ctrl = __raw_readl(base + TWD_TIMER_CONTROL);
__raw_writel(evt, base + TWD_TIMER_COUNTER);
__raw_writel(ctrl | TWD_TIMER_CONTROL_ENABLE, base + TWD_TIMER_CONTROL);
return 0;
}
/*
* local_timer_ack: checks for a local timer interrupt.
*
@ -45,12 +101,11 @@ int local_timer_ack(void)
return 0;
}
void __cpuinit local_timer_setup(unsigned int cpu)
static void __cpuinit twd_calibrate_rate(unsigned int cpu)
{
void __iomem *base = TWD_BASE(cpu);
unsigned int load, offset;
unsigned long load, count;
u64 waitjiffies;
unsigned int count;
/*
* If this is the first time round, we need to work out how fast
@ -88,36 +143,36 @@ void __cpuinit local_timer_setup(unsigned int cpu)
load = mpcore_timer_rate / HZ;
__raw_writel(load, base + TWD_TIMER_LOAD);
__raw_writel(0x7, base + TWD_TIMER_CONTROL);
}
/*
* Now maneuver our local tick into the right part of the jiffy.
* Start by working out where within the tick our local timer
* interrupt should go.
* Setup the local clock events for a CPU.
*/
offset = ((mpcore_timer_rate / HZ) / (NR_CPUS + 1)) * (cpu + 1);
void __cpuinit local_timer_setup(unsigned int cpu)
{
struct clock_event_device *clk = &per_cpu(local_clockevent, cpu);
unsigned long flags;
/*
* gettimeoffset() will return a number of us since the last tick.
* Convert this number of us to a local timer tick count.
* Be careful of integer overflow whilst keeping maximum precision.
*
* with HZ=100 and 1MHz (fpga) ~ 1GHz processor:
* load = 1 ~ 10,000
* mpcore_timer_rate/10000 = 100 ~ 100,000
*
* so the multiply value will be less than 10^9 always.
*/
load = (system_timer->offset() * (mpcore_timer_rate / 10000)) / 100;
twd_calibrate_rate(cpu);
/* Add on our offset to get the load value */
load = (load + offset) % (mpcore_timer_rate / HZ);
__raw_writel(load, base + TWD_TIMER_COUNTER);
clk->name = "local_timer";
clk->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
clk->rating = 350;
clk->set_mode = local_timer_set_mode;
clk->set_next_event = local_timer_set_next_event;
clk->irq = IRQ_LOCALTIMER;
clk->cpumask = cpumask_of_cpu(cpu);
clk->shift = 20;
clk->mult = div_sc(mpcore_timer_rate, NSEC_PER_SEC, clk->shift);
clk->max_delta_ns = clockevent_delta2ns(0xffffffff, clk);
clk->min_delta_ns = clockevent_delta2ns(0xf, clk);
/* Make sure our local interrupt controller has this enabled */
__raw_writel(1 << IRQ_LOCALTIMER,
__io_address(REALVIEW_GIC_DIST_BASE) + GIC_DIST_ENABLE_SET);
local_irq_save(flags);
get_irq_chip(IRQ_LOCALTIMER)->unmask(IRQ_LOCALTIMER);
local_irq_restore(flags);
clockevents_register_device(clk);
}
/*
@ -127,3 +182,26 @@ void __cpuexit local_timer_stop(unsigned int cpu)
{
__raw_writel(0, TWD_BASE(cpu) + TWD_TIMER_CONTROL);
}
#else /* CONFIG_LOCAL_TIMERS */
static void dummy_timer_set_mode(enum clock_event_mode mode,
struct clock_event_device *clk)
{
}
void __cpuinit local_timer_setup(unsigned int cpu)
{
struct clock_event_device *clk = &per_cpu(local_clockevent, cpu);
clk->name = "dummy_timer";
clk->features = CLOCK_EVT_FEAT_DUMMY;
clk->rating = 200;
clk->set_mode = dummy_timer_set_mode;
clk->broadcast = smp_timer_broadcast;
clk->cpumask = cpumask_of_cpu(cpu);
clockevents_register_device(clk);
}
#endif /* !CONFIG_LOCAL_TIMERS */

18
arch/arm/mach-realview/platsmp.c
View file

@ -18,6 +18,7 @@
#include <asm/hardware/arm_scu.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/mach-types.h>
extern void realview_secondary_startup(void);
@ -31,9 +32,13 @@ static unsigned int __init get_core_count(void)
{
unsigned int ncores;
ncores = __raw_readl(__io_address(REALVIEW_MPCORE_SCU_BASE) + SCU_CONFIG);
if (machine_is_realview_eb() && core_tile_eb11mp()) {
ncores = __raw_readl(__io_address(REALVIEW_EB11MP_SCU_BASE) + SCU_CONFIG);
ncores = (ncores & 0x03) + 1;
} else
ncores = 1;
return (ncores & 0x03) + 1;
return ncores;
}
static DEFINE_SPINLOCK(boot_lock);
@ -52,7 +57,7 @@ void __cpuinit platform_secondary_init(unsigned int cpu)
* core (e.g. timer irq), then they will not have been enabled
* for us: do so
*/
gic_cpu_init(0, __io_address(REALVIEW_GIC_CPU_BASE));
gic_cpu_init(0, __io_address(REALVIEW_EB11MP_GIC_CPU_BASE));
/*
* let the primary processor know we're out of the
@ -187,10 +192,15 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
if (max_cpus > ncores)
max_cpus = ncores;
#ifdef CONFIG_LOCAL_TIMERS
/*
* Enable the local timer for primary CPU
* Enable the local timer for primary CPU. If the device is
* dummy (!CONFIG_LOCAL_TIMERS), it was already registers in
* realview_timer_init
*/
if (machine_is_realview_eb() && core_tile_eb11mp())
local_timer_setup(cpu);
#endif
/*
* Initialise the present map, which describes the set of CPUs

224
arch/arm/mach-realview/realview_eb.c
View file

@ -36,7 +36,9 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/mmc.h>
#include <asm/mach/time.h>
#include <asm/arch/board-eb.h>
#include <asm/arch/irqs.h>
#include "core.h"
@ -58,26 +60,7 @@ static struct map_desc realview_eb_io_desc[] __initdata = {
.pfn = __phys_to_pfn(REALVIEW_GIC_DIST_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
},
#ifdef CONFIG_REALVIEW_MPCORE
{
.virtual = IO_ADDRESS(REALVIEW_GIC1_CPU_BASE),
.pfn = __phys_to_pfn(REALVIEW_GIC1_CPU_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(REALVIEW_GIC1_DIST_BASE),
.pfn = __phys_to_pfn(REALVIEW_GIC1_DIST_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(REALVIEW_MPCORE_L220_BASE),
.pfn = __phys_to_pfn(REALVIEW_MPCORE_L220_BASE),
.length = SZ_8K,
.type = MT_DEVICE,
},
#endif
{
.virtual = IO_ADDRESS(REALVIEW_SCTL_BASE),
.pfn = __phys_to_pfn(REALVIEW_SCTL_BASE),
.length = SZ_4K,
@ -103,11 +86,95 @@ static struct map_desc realview_eb_io_desc[] __initdata = {
#endif
};
static struct map_desc realview_eb11mp_io_desc[] __initdata = {
{
.virtual = IO_ADDRESS(REALVIEW_EB11MP_GIC_CPU_BASE),
.pfn = __phys_to_pfn(REALVIEW_EB11MP_GIC_CPU_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(REALVIEW_EB11MP_GIC_DIST_BASE),
.pfn = __phys_to_pfn(REALVIEW_EB11MP_GIC_DIST_BASE),
.length = SZ_4K,
.type = MT_DEVICE,
}, {
.virtual = IO_ADDRESS(REALVIEW_EB11MP_L220_BASE),
.pfn = __phys_to_pfn(REALVIEW_EB11MP_L220_BASE),
.length = SZ_8K,
.type = MT_DEVICE,
}
};
static void __init realview_eb_map_io(void)
{
iotable_init(realview_eb_io_desc, ARRAY_SIZE(realview_eb_io_desc));
if (core_tile_eb11mp())
iotable_init(realview_eb11mp_io_desc, ARRAY_SIZE(realview_eb11mp_io_desc));
}
/*
* RealView EB AMBA devices
*/
/*
* These devices are connected via the core APB bridge
*/
#define GPIO2_IRQ { IRQ_EB_GPIO2, NO_IRQ }
#define GPIO2_DMA { 0, 0 }
#define GPIO3_IRQ { IRQ_EB_GPIO3, NO_IRQ }
#define GPIO3_DMA { 0, 0 }
#define AACI_IRQ { IRQ_EB_AACI, NO_IRQ }
#define AACI_DMA { 0x80, 0x81 }
#define MMCI0_IRQ { IRQ_EB_MMCI0A, IRQ_EB_MMCI0B }
#define MMCI0_DMA { 0x84, 0 }
#define KMI0_IRQ { IRQ_EB_KMI0, NO_IRQ }
#define KMI0_DMA { 0, 0 }
#define KMI1_IRQ { IRQ_EB_KMI1, NO_IRQ }
#define KMI1_DMA { 0, 0 }
/*
* These devices are connected directly to the multi-layer AHB switch
*/
#define SMC_IRQ { NO_IRQ, NO_IRQ }
#define SMC_DMA { 0, 0 }
#define MPMC_IRQ { NO_IRQ, NO_IRQ }
#define MPMC_DMA { 0, 0 }
#define CLCD_IRQ { IRQ_EB_CLCD, NO_IRQ }
#define CLCD_DMA { 0, 0 }
#define DMAC_IRQ { IRQ_EB_DMA, NO_IRQ }
#define DMAC_DMA { 0, 0 }
/*
* These devices are connected via the core APB bridge
*/
#define SCTL_IRQ { NO_IRQ, NO_IRQ }
#define SCTL_DMA { 0, 0 }
#define WATCHDOG_IRQ { IRQ_EB_WDOG, NO_IRQ }
#define WATCHDOG_DMA { 0, 0 }
#define GPIO0_IRQ { IRQ_EB_GPIO0, NO_IRQ }
#define GPIO0_DMA { 0, 0 }
#define GPIO1_IRQ { IRQ_EB_GPIO1, NO_IRQ }
#define GPIO1_DMA { 0, 0 }
#define RTC_IRQ { IRQ_EB_RTC, NO_IRQ }
#define RTC_DMA { 0, 0 }
/*
* These devices are connected via the DMA APB bridge
*/
#define SCI_IRQ { IRQ_EB_SCI, NO_IRQ }
#define SCI_DMA { 7, 6 }
#define UART0_IRQ { IRQ_EB_UART0, NO_IRQ }
#define UART0_DMA { 15, 14 }
#define UART1_IRQ { IRQ_EB_UART1, NO_IRQ }
#define UART1_DMA { 13, 12 }
#define UART2_IRQ { IRQ_EB_UART2, NO_IRQ }
#define UART2_DMA { 11, 10 }
#define UART3_IRQ { IRQ_EB_UART3, NO_IRQ }
#define UART3_DMA { 0x86, 0x87 }
#define SSP_IRQ { IRQ_EB_SSP, NO_IRQ }
#define SSP_DMA { 9, 8 }
/* FPGA Primecells */
AMBA_DEVICE(aaci, "fpga:04", AACI, NULL);
AMBA_DEVICE(mmc0, "fpga:05", MMCI0, &realview_mmc0_plat_data);
@ -153,38 +220,127 @@ static struct amba_device *amba_devs[] __initdata = {
&kmi1_device,
};
/*
* RealView EB platform devices
*/
static struct resource realview_eb_smc91x_resources[] = {
[0] = {
.start = REALVIEW_ETH_BASE,
.end = REALVIEW_ETH_BASE + SZ_64K - 1,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = IRQ_EB_ETH,
.end = IRQ_EB_ETH,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device realview_eb_smc91x_device = {
.name = "smc91x",
.id = 0,
.num_resources = ARRAY_SIZE(realview_eb_smc91x_resources),
.resource = realview_eb_smc91x_resources,
};
static void __init gic_init_irq(void)
{
#ifdef CONFIG_REALVIEW_MPCORE
if (core_tile_eb11mp()) {
unsigned int pldctrl;
/* new irq mode */
writel(0x0000a05f, __io_address(REALVIEW_SYS_LOCK));
pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_MPCORE_SYS_PLD_CTRL1);
pldctrl |= 0x00800000; /* New irq mode */
writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_MPCORE_SYS_PLD_CTRL1);
pldctrl = readl(__io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1);
pldctrl |= 0x00800000;
writel(pldctrl, __io_address(REALVIEW_SYS_BASE) + REALVIEW_EB11MP_SYS_PLD_CTRL1);
writel(0x00000000, __io_address(REALVIEW_SYS_LOCK));
/* core tile GIC, primary */
gic_cpu_base_addr = __io_address(REALVIEW_EB11MP_GIC_CPU_BASE);
gic_dist_init(0, __io_address(REALVIEW_EB11MP_GIC_DIST_BASE), 29);
gic_cpu_init(0, gic_cpu_base_addr);
#ifndef CONFIG_REALVIEW_EB_ARM11MP_REVB
/* board GIC, secondary */
gic_dist_init(1, __io_address(REALVIEW_GIC_DIST_BASE), 64);
gic_cpu_init(1, __io_address(REALVIEW_GIC_CPU_BASE));
gic_cascade_irq(1, IRQ_EB11MP_EB_IRQ1);
#endif
} else {
/* board GIC, primary */
gic_cpu_base_addr = __io_address(REALVIEW_GIC_CPU_BASE);
gic_dist_init(0, __io_address(REALVIEW_GIC_DIST_BASE), 29);
gic_cpu_init(0, __io_address(REALVIEW_GIC_CPU_BASE));
#if defined(CONFIG_REALVIEW_MPCORE) && !defined(CONFIG_REALVIEW_MPCORE_REVB)
gic_dist_init(1, __io_address(REALVIEW_GIC1_DIST_BASE), 64);
gic_cpu_init(1, __io_address(REALVIEW_GIC1_CPU_BASE));
gic_cascade_irq(1, IRQ_EB_IRQ1);
#endif
gic_cpu_init(0, gic_cpu_base_addr);
}
}
/*
* Fix up the IRQ numbers for the RealView EB/ARM11MPCore tile
*/
static void realview_eb11mp_fixup(void)
{
/* AMBA devices */
dmac_device.irq[0] = IRQ_EB11MP_DMA;
uart0_device.irq[0] = IRQ_EB11MP_UART0;
uart1_device.irq[0] = IRQ_EB11MP_UART1;
uart2_device.irq[0] = IRQ_EB11MP_UART2;
uart3_device.irq[0] = IRQ_EB11MP_UART3;
clcd_device.irq[0] = IRQ_EB11MP_CLCD;
wdog_device.irq[0] = IRQ_EB11MP_WDOG;
gpio0_device.irq[0] = IRQ_EB11MP_GPIO0;
gpio1_device.irq[0] = IRQ_EB11MP_GPIO1;
gpio2_device.irq[0] = IRQ_EB11MP_GPIO2;
rtc_device.irq[0] = IRQ_EB11MP_RTC;
sci0_device.irq[0] = IRQ_EB11MP_SCI;
ssp0_device.irq[0] = IRQ_EB11MP_SSP;
aaci_device.irq[0] = IRQ_EB11MP_AACI;
mmc0_device.irq[0] = IRQ_EB11MP_MMCI0A;
mmc0_device.irq[1] = IRQ_EB11MP_MMCI0B;
kmi0_device.irq[0] = IRQ_EB11MP_KMI0;
kmi1_device.irq[0] = IRQ_EB11MP_KMI1;
/* platform devices */
realview_eb_smc91x_resources[1].start = IRQ_EB11MP_ETH;
realview_eb_smc91x_resources[1].end = IRQ_EB11MP_ETH;
}
static void __init realview_eb_timer_init(void)
{
unsigned int timer_irq;
if (core_tile_eb11mp()) {
#ifdef CONFIG_LOCAL_TIMERS
twd_base_addr = __io_address(REALVIEW_EB11MP_TWD_BASE);
twd_size = REALVIEW_EB11MP_TWD_SIZE;
#endif
timer_irq = IRQ_EB11MP_TIMER0_1;
} else
timer_irq = IRQ_EB_TIMER0_1;
realview_timer_init(timer_irq);
}
static struct sys_timer realview_eb_timer = {
.init = realview_eb_timer_init,
};
static void __init realview_eb_init(void)
{
int i;
#ifdef CONFIG_REALVIEW_MPCORE
if (core_tile_eb11mp()) {
realview_eb11mp_fixup();
/* 1MB (128KB/way), 8-way associativity, evmon/parity/share enabled
* Bits: .... ...0 0111 1001 0000 .... .... .... */
l2x0_init(__io_address(REALVIEW_MPCORE_L220_BASE), 0x00790000, 0xfe000fff);
#endif
l2x0_init(__io_address(REALVIEW_EB11MP_L220_BASE), 0x00790000, 0xfe000fff);
}
clk_register(&realview_clcd_clk);
platform_device_register(&realview_flash_device);
platform_device_register(&realview_smc91x_device);
platform_device_register(&realview_eb_smc91x_device);
platform_device_register(&realview_i2c_device);
for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
@ -204,6 +360,6 @@ MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
.boot_params = 0x00000100,
.map_io = realview_eb_map_io,
.init_irq = gic_init_irq,
.timer = &realview_timer,
.timer = &realview_eb_timer,
.init_machine = realview_eb_init,
MACHINE_END

2
arch/arm/mach-sa1100/generic.c
View file

@ -470,7 +470,7 @@ void __init sa1110_mb_disable(void)
* If the system is going to use the SA-1111 DMA engines, set up
* the memory bus request/grant pins.
*/
void __init sa1110_mb_enable(void)
void __devinit sa1110_mb_enable(void)
{
unsigned long flags;

4
arch/arm/plat-iop/time.c
View file

@ -57,8 +57,6 @@ unsigned long iop_gettimeoffset(void)
static irqreturn_t
iop_timer_interrupt(int irq, void *dev_id)
{
write_seqlock(&xtime_lock);
write_tisr(1);
while ((signed long)(next_jiffy_time - read_tcr1())
@ -67,8 +65,6 @@ iop_timer_interrupt(int irq, void *dev_id)
next_jiffy_time -= ticks_per_jiffy;
}
write_sequnlock(&xtime_lock);
return IRQ_HANDLED;
}

2
arch/arm/plat-s3c24xx/time.c
View file

@ -130,9 +130,7 @@ static unsigned long s3c2410_gettimeoffset (void)
static irqreturn_t
s3c2410_timer_interrupt(int irq, void *dev_id)
{
write_seqlock(&xtime_lock);
timer_tick();
write_sequnlock(&xtime_lock);
return IRQ_HANDLED;
}

2
drivers/pcmcia/sa1100_jornada720.c
View file

@ -101,7 +101,7 @@ static struct pcmcia_low_level jornada720_pcmcia_ops = {
.socket_suspend = sa1111_pcmcia_socket_suspend,
};
int __init pcmcia_jornada720_init(struct device *dev)
int __devinit pcmcia_jornada720_init(struct device *dev)
{
int ret = -ENODEV;

8
drivers/serial/21285.c
View file

@ -237,6 +237,12 @@ serial21285_set_termios(struct uart_port *port, struct ktermios *termios,
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
quot = uart_get_divisor(port, baud);
if (port->info && port->info->tty) {
struct tty_struct *tty = port->info->tty;
unsigned int b = port->uartclk / (16 * quot);
tty_encode_baud_rate(tty, b, b);
}
switch (termios->c_cflag & CSIZE) {
case CS5:
h_lcr = 0x00;
@ -277,8 +283,6 @@ serial21285_set_termios(struct uart_port *port, struct ktermios *termios,
if (termios->c_iflag & INPCK)
port->read_status_mask |= RXSTAT_FRAME | RXSTAT_PARITY;
tty_encode_baud_rate(tty, baud, baud);
/*
* Which character status flags should we ignore?
*/

3
drivers/serial/atmel_serial.c
View file

@ -34,6 +34,7 @@
#include <linux/tty_flip.h>
#include <linux/platform_device.h>
#include <linux/atmel_pdc.h>
#include <linux/atmel_serial.h>
#include <asm/io.h>
@ -45,8 +46,6 @@
#include <asm/arch/gpio.h>
#endif
#include "atmel_serial.h"
#if defined(CONFIG_SERIAL_ATMEL_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
#define SUPPORT_SYSRQ
#endif

2
include/asm-arm/arch-at91/at91_mci.h
View file

@ -89,7 +89,7 @@
#define AT91_MCI_ENDRX (1 << 6) /* End of RX Buffer */
#define AT91_MCI_ENDTX (1 << 7) /* End fo TX Buffer */
#define AT91_MCI_SDIOIRQA (1 << 8) /* SDIO Interrupt for Slot A */
#define At91_MCI_SDIOIRQB (1 << 9) /* SDIO Interrupt for Slot B [AT91RM9200 only] */
#define AT91_MCI_SDIOIRQB (1 << 9) /* SDIO Interrupt for Slot B */
#define AT91_MCI_RXBUFF (1 << 14) /* RX Buffer Full */
#define AT91_MCI_TXBUFE (1 << 15) /* TX Buffer Empty */
#define AT91_MCI_RINDE (1 << 16) /* Response Index Error */

5
include/asm-arm/arch-at91/at91rm9200.h
View file

@ -93,6 +93,11 @@
#define AT91_RTC (0xfffffe00 - AT91_BASE_SYS) /* Real-Time Clock */
#define AT91_MC (0xffffff00 - AT91_BASE_SYS) /* Memory Controllers */
#define AT91_USART0 AT91RM9200_BASE_US0
#define AT91_USART1 AT91RM9200_BASE_US1
#define AT91_USART2 AT91RM9200_BASE_US2
#define AT91_USART3 AT91RM9200_BASE_US3
#define AT91_MATRIX 0 /* not supported */
/*

7
include/asm-arm/arch-at91/at91sam9260.h
View file

@ -99,6 +99,13 @@
#define AT91_WDT (0xfffffd40 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS)
#define AT91_USART0 AT91SAM9260_BASE_US0
#define AT91_USART1 AT91SAM9260_BASE_US1
#define AT91_USART2 AT91SAM9260_BASE_US2
#define AT91_USART3 AT91SAM9260_BASE_US3
#define AT91_USART4 AT91SAM9260_BASE_US4
#define AT91_USART5 AT91SAM9260_BASE_US5
/*
* Internal Memory.

4
include/asm-arm/arch-at91/at91sam9261.h
View file

@ -84,6 +84,10 @@
#define AT91_WDT (0xfffffd40 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS)
#define AT91_USART0 AT91SAM9261_BASE_US0
#define AT91_USART1 AT91SAM9261_BASE_US1
#define AT91_USART2 AT91SAM9261_BASE_US2
/*
* Internal Memory.

4
include/asm-arm/arch-at91/at91sam9263.h
View file

@ -101,6 +101,10 @@
#define AT91_RTT1 (0xfffffd50 - AT91_BASE_SYS)
#define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS)
#define AT91_USART0 AT91SAM9263_BASE_US0
#define AT91_USART1 AT91SAM9263_BASE_US1
#define AT91_USART2 AT91SAM9263_BASE_US2
#define AT91_SMC AT91_SMC0
/*

5
include/asm-arm/arch-at91/at91sam9rl.h
View file

@ -94,6 +94,11 @@
#define AT91_GPBR (0xfffffd60 - AT91_BASE_SYS)
#define AT91_RTC (0xfffffe00 - AT91_BASE_SYS)
#define AT91_USART0 AT91SAM9RL_BASE_US0
#define AT91_USART1 AT91SAM9RL_BASE_US1
#define AT91_USART2 AT91SAM9RL_BASE_US2
#define AT91_USART3 AT91SAM9RL_BASE_US3
/*
* Internal Memory.

32
include/asm-arm/arch-at91/uncompress.h
View file

@ -22,7 +22,23 @@
#define __ASM_ARCH_UNCOMPRESS_H
#include <asm/io.h>
#include <asm/arch/at91_dbgu.h>
#include <linux/atmel_serial.h>
#if defined(CONFIG_AT91_EARLY_DBGU)
#define UART_OFFSET (AT91_DBGU + AT91_BASE_SYS)
#elif defined(CONFIG_AT91_EARLY_USART0)
#define UART_OFFSET AT91_USART0
#elif defined(CONFIG_AT91_EARLY_USART1)
#define UART_OFFSET AT91_USART1
#elif defined(CONFIG_AT91_EARLY_USART2)
#define UART_OFFSET AT91_USART2
#elif defined(CONFIG_AT91_EARLY_USART3)
#define UART_OFFSET AT91_USART3
#elif defined(CONFIG_AT91_EARLY_USART4)
#define UART_OFFSET AT91_USART4
#elif defined(CONFIG_AT91_EARLY_USART5)
#define UART_OFFSET AT91_USART5
#endif
/*
* The following code assumes the serial port has already been
@ -33,22 +49,22 @@
*/
static void putc(int c)
{
#ifdef AT91_DBGU
void __iomem *sys = (void __iomem *) AT91_BASE_SYS; /* physical address */
#ifdef UART_OFFSET
void __iomem *sys = (void __iomem *) UART_OFFSET; /* physical address */
while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXRDY))
while (!(__raw_readl(sys + ATMEL_US_CSR) & ATMEL_US_TXRDY))
barrier();
__raw_writel(c, sys + AT91_DBGU_THR);
__raw_writel(c, sys + ATMEL_US_THR);
#endif
}
static inline void flush(void)
{
#ifdef AT91_DBGU
void __iomem *sys = (void __iomem *) AT91_BASE_SYS; /* physical address */
#ifdef UART_OFFSET
void __iomem *sys = (void __iomem *) UART_OFFSET; /* physical address */
/* wait for transmission to complete */
while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXEMPTY))
while (!(__raw_readl(sys + ATMEL_US_CSR) & ATMEL_US_TXEMPTY))
barrier();
#endif
}

15
include/asm-arm/arch-ixp4xx/cpu.h
View file

@ -28,4 +28,19 @@ extern unsigned int processor_id;
#define cpu_is_ixp46x() ((processor_id & IXP4XX_PROCESSOR_ID_MASK) == \
IXP465_PROCESSOR_ID_VALUE)
static inline u32 ixp4xx_read_feature_bits(void)
{
unsigned int val = ~*IXP4XX_EXP_CFG2;
val &= ~IXP4XX_FEATURE_RESERVED;
if (!cpu_is_ixp46x())
val &= ~IXP4XX_FEATURE_IXP46X_ONLY;
return val;
}
static inline void ixp4xx_write_feature_bits(u32 value)
{
*IXP4XX_EXP_CFG2 = ~value;
}
#endif /* _ASM_ARCH_CPU_H */

7
include/asm-arm/arch-ixp4xx/dsmg600.h
View file

@ -40,18 +40,13 @@
/* Buttons */
#define DSMG600_PB_GPIO 15 /* power button */
#define DSMG600_PB_BM (1L << DSMG600_PB_GPIO)
#define DSMG600_RB_GPIO 3 /* reset button */
#define DSMG600_RB_IRQ IRQ_IXP4XX_GPIO3
/* Power control */
#define DSMG600_PO_GPIO 2 /* power off */
/* LEDs */
#define DSMG600_LED_PWR_GPIO 0
#define DSMG600_LED_PWR_BM (1L << DSMG600_LED_PWR_GPIO)
#define DSMG600_LED_WLAN_GPIO 14
#define DSMG600_LED_WLAN_BM (1L << DSMG600_LED_WLAN_GPIO)

6
include/asm-arm/arch-ixp4xx/hardware.h
View file

@ -27,13 +27,13 @@
#define pcibios_assign_all_busses() 1
/* Register locations and bits */
#include "ixp4xx-regs.h"
#ifndef __ASSEMBLER__
#include <asm/arch/cpu.h>
#endif
/* Register locations and bits */
#include "ixp4xx-regs.h"
/* Platform helper functions and definitions */
#include "platform.h"

2
include/asm-arm/arch-ixp4xx/io.h
View file

@ -13,6 +13,8 @@
#ifndef __ASM_ARM_ARCH_IO_H
#define __ASM_ARM_ARCH_IO_H
#include <linux/bitops.h>
#include <asm/hardware.h>
#define IO_SPACE_LIMIT 0xffff0000

36
include/asm-arm/arch-ixp4xx/ixp4xx-regs.h
View file

@ -15,10 +15,6 @@
*
*/
#ifndef __ASM_ARCH_HARDWARE_H__
#error "Do not include this directly, instead #include <asm/hardware.h>"
#endif
#ifndef _ASM_ARM_IXP4XX_H_
#define _ASM_ARM_IXP4XX_H_
@ -607,4 +603,36 @@
#define DCMD_LENGTH 0x01fff /* length mask (max = 8K - 1) */
/* "fuse" bits of IXP_EXP_CFG2 */
#define IXP4XX_FEATURE_RCOMP (1 << 0)
#define IXP4XX_FEATURE_USB_DEVICE (1 << 1)
#define IXP4XX_FEATURE_HASH (1 << 2)
#define IXP4XX_FEATURE_AES (1 << 3)
#define IXP4XX_FEATURE_DES (1 << 4)
#define IXP4XX_FEATURE_HDLC (1 << 5)
#define IXP4XX_FEATURE_AAL (1 << 6)
#define IXP4XX_FEATURE_HSS (1 << 7)
#define IXP4XX_FEATURE_UTOPIA (1 << 8)
#define IXP4XX_FEATURE_NPEB_ETH0 (1 << 9)
#define IXP4XX_FEATURE_NPEC_ETH (1 << 10)
#define IXP4XX_FEATURE_RESET_NPEA (1 << 11)
#define IXP4XX_FEATURE_RESET_NPEB (1 << 12)
#define IXP4XX_FEATURE_RESET_NPEC (1 << 13)
#define IXP4XX_FEATURE_PCI (1 << 14)
#define IXP4XX_FEATURE_ECC_TIMESYNC (1 << 15)
#define IXP4XX_FEATURE_UTOPIA_PHY_LIMIT (3 << 16)
#define IXP4XX_FEATURE_USB_HOST (1 << 18)
#define IXP4XX_FEATURE_NPEA_ETH (1 << 19)
#define IXP4XX_FEATURE_NPEB_ETH_1_TO_3 (1 << 20)
#define IXP4XX_FEATURE_RSA (1 << 21)
#define IXP4XX_FEATURE_XSCALE_MAX_FREQ (3 << 22)
#define IXP4XX_FEATURE_RESERVED (0xFF << 24)
#define IXP4XX_FEATURE_IXP46X_ONLY (IXP4XX_FEATURE_ECC_TIMESYNC | \
IXP4XX_FEATURE_USB_HOST | \
IXP4XX_FEATURE_NPEA_ETH | \
IXP4XX_FEATURE_NPEB_ETH_1_TO_3 | \
IXP4XX_FEATURE_RSA | \
IXP4XX_FEATURE_XSCALE_MAX_FREQ)
#endif

18
include/asm-arm/arch-ixp4xx/nas100d.h
View file

@ -38,15 +38,15 @@
/* Buttons */
#define NAS100D_PB_GPIO 14
#define NAS100D_RB_GPIO 4
#define NAS100D_PB_GPIO 14 /* power button */
#define NAS100D_RB_GPIO 4 /* reset button */
/* Power control */
#define NAS100D_PO_GPIO 12 /* power off */
#define NAS100D_PB_IRQ IRQ_IXP4XX_GPIO14
#define NAS100D_RB_IRQ IRQ_IXP4XX_GPIO4
/* LEDs */
/*
#define NAS100D_PB_BM (1L << NAS100D_PB_GPIO)
#define NAS100D_PO_BM (1L << NAS100D_PO_GPIO)
#define NAS100D_RB_BM (1L << NAS100D_RB_GPIO)
*/
#define NAS100D_LED_WLAN_GPIO 0
#define NAS100D_LED_DISK_GPIO 3
#define NAS100D_LED_PWR_GPIO 15

39
include/asm-arm/arch-ixp4xx/npe.h Normal file
View file

@ -0,0 +1,39 @@
#ifndef __IXP4XX_NPE_H
#define __IXP4XX_NPE_H
#include <linux/kernel.h>
extern const char *npe_names[];
struct npe_regs {
u32 exec_addr, exec_data, exec_status_cmd, exec_count;
u32 action_points[4];
u32 watchpoint_fifo, watch_count;
u32 profile_count;
u32 messaging_status, messaging_control;
u32 mailbox_status, /*messaging_*/ in_out_fifo;
};
struct npe {
struct resource *mem_res;
struct npe_regs __iomem *regs;
u32 regs_phys;
int id;
int valid;
};
static inline const char *npe_name(struct npe *npe)
{
return npe_names[npe->id];
}
int npe_running(struct npe *npe);
int npe_send_message(struct npe *npe, const void *msg, const char *what);
int npe_recv_message(struct npe *npe, void *msg, const char *what);
int npe_send_recv_message(struct npe *npe, void *msg, const char *what);
int npe_load_firmware(struct npe *npe, const char *name, struct device *dev);
struct npe *npe_request(int id);
void npe_release(struct npe *npe);
#endif /* __IXP4XX_NPE_H */

21
include/asm-arm/arch-ixp4xx/nslu2.h
View file

@ -39,34 +39,17 @@
/* Buttons */
#define NSLU2_PB_GPIO 5
#define NSLU2_PB_GPIO 5 /* power button */
#define NSLU2_PO_GPIO 8 /* power off */
#define NSLU2_RB_GPIO 12
#define NSLU2_PB_IRQ IRQ_IXP4XX_GPIO5
#define NSLU2_RB_IRQ IRQ_IXP4XX_GPIO12
#define NSLU2_PB_BM (1L << NSLU2_PB_GPIO)
#define NSLU2_PO_BM (1L << NSLU2_PO_GPIO)
#define NSLU2_RB_BM (1L << NSLU2_RB_GPIO)
#define NSLU2_RB_GPIO 12 /* reset button */
/* Buzzer */
#define NSLU2_GPIO_BUZZ 4
#define NSLU2_BZ_BM (1L << NSLU2_GPIO_BUZZ)
/* LEDs */
#define NSLU2_LED_RED_GPIO 0
#define NSLU2_LED_GRN_GPIO 1
#define NSLU2_LED_RED_BM (1L << NSLU2_LED_RED_GPIO)
#define NSLU2_LED_GRN_BM (1L << NSLU2_LED_GRN_GPIO)
#define NSLU2_LED_DISK1_GPIO 3
#define NSLU2_LED_DISK2_GPIO 2
#define NSLU2_LED_DISK1_BM (1L << NSLU2_LED_DISK1_GPIO)
#define NSLU2_LED_DISK2_BM (1L << NSLU2_LED_DISK2_GPIO)

21
include/asm-arm/arch-ixp4xx/platform.h
View file

@ -91,6 +91,27 @@ struct ixp4xx_pata_data {
struct sys_timer;
#define IXP4XX_ETH_NPEA 0x00
#define IXP4XX_ETH_NPEB 0x10
#define IXP4XX_ETH_NPEC 0x20
/* Information about built-in Ethernet MAC interfaces */
struct eth_plat_info {
u8 phy; /* MII PHY ID, 0 - 31 */
u8 rxq; /* configurable, currently 0 - 31 only */
u8 txreadyq;
u8 hwaddr[6];
};
/* Information about built-in HSS (synchronous serial) interfaces */
struct hss_plat_info {
int (*set_clock)(int port, unsigned int clock_type);
int (*open)(int port, void *pdev,
void (*set_carrier_cb)(void *pdev, int carrier));
void (*close)(int port, void *pdev);
u8 txreadyq;
};
/*
* Frequency of clock used for primary clocksource
*/

126
include/asm-arm/arch-ixp4xx/qmgr.h Normal file
View file

@ -0,0 +1,126 @@
/*
* Copyright (C) 2007 Krzysztof Halasa <khc@pm.waw.pl>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*/
#ifndef IXP4XX_QMGR_H
#define IXP4XX_QMGR_H
#include <linux/io.h>
#include <linux/kernel.h>
#define HALF_QUEUES 32
#define QUEUES 64 /* only 32 lower queues currently supported */
#define MAX_QUEUE_LENGTH 4 /* in dwords */
#define QUEUE_STAT1_EMPTY 1 /* queue status bits */
#define QUEUE_STAT1_NEARLY_EMPTY 2
#define QUEUE_STAT1_NEARLY_FULL 4
#define QUEUE_STAT1_FULL 8
#define QUEUE_STAT2_UNDERFLOW 1
#define QUEUE_STAT2_OVERFLOW 2
#define QUEUE_WATERMARK_0_ENTRIES 0
#define QUEUE_WATERMARK_1_ENTRY 1
#define QUEUE_WATERMARK_2_ENTRIES 2
#define QUEUE_WATERMARK_4_ENTRIES 3
#define QUEUE_WATERMARK_8_ENTRIES 4
#define QUEUE_WATERMARK_16_ENTRIES 5
#define QUEUE_WATERMARK_32_ENTRIES 6
#define QUEUE_WATERMARK_64_ENTRIES 7
/* queue interrupt request conditions */
#define QUEUE_IRQ_SRC_EMPTY 0
#define QUEUE_IRQ_SRC_NEARLY_EMPTY 1
#define QUEUE_IRQ_SRC_NEARLY_FULL 2
#define QUEUE_IRQ_SRC_FULL 3
#define QUEUE_IRQ_SRC_NOT_EMPTY 4
#define QUEUE_IRQ_SRC_NOT_NEARLY_EMPTY 5
#define QUEUE_IRQ_SRC_NOT_NEARLY_FULL 6
#define QUEUE_IRQ_SRC_NOT_FULL 7
struct qmgr_regs {
u32 acc[QUEUES][MAX_QUEUE_LENGTH]; /* 0x000 - 0x3FF */
u32 stat1[4]; /* 0x400 - 0x40F */
u32 stat2[2]; /* 0x410 - 0x417 */
u32 statne_h; /* 0x418 - queue nearly empty */
u32 statf_h; /* 0x41C - queue full */
u32 irqsrc[4]; /* 0x420 - 0x42F IRC source */
u32 irqen[2]; /* 0x430 - 0x437 IRQ enabled */
u32 irqstat[2]; /* 0x438 - 0x43F - IRQ access only */
u32 reserved[1776];
u32 sram[2048]; /* 0x2000 - 0x3FFF - config and buffer */
};
void qmgr_set_irq(unsigned int queue, int src,
void (*handler)(void *pdev), void *pdev);
void qmgr_enable_irq(unsigned int queue);
void qmgr_disable_irq(unsigned int queue);
/* request_ and release_queue() must be called from non-IRQ context */
int qmgr_request_queue(unsigned int queue, unsigned int len /* dwords */,
unsigned int nearly_empty_watermark,
unsigned int nearly_full_watermark);
void qmgr_release_queue(unsigned int queue);
static inline void qmgr_put_entry(unsigned int queue, u32 val)
{
extern struct qmgr_regs __iomem *qmgr_regs;
__raw_writel(val, &qmgr_regs->acc[queue][0]);
}
static inline u32 qmgr_get_entry(unsigned int queue)
{
extern struct qmgr_regs __iomem *qmgr_regs;
return __raw_readl(&qmgr_regs->acc[queue][0]);
}
static inline int qmgr_get_stat1(unsigned int queue)
{
extern struct qmgr_regs __iomem *qmgr_regs;
return (__raw_readl(&qmgr_regs->stat1[queue >> 3])
>> ((queue & 7) << 2)) & 0xF;
}
static inline int qmgr_get_stat2(unsigned int queue)
{
extern struct qmgr_regs __iomem *qmgr_regs;
return (__raw_readl(&qmgr_regs->stat2[queue >> 4])
>> ((queue & 0xF) << 1)) & 0x3;
}
static inline int qmgr_stat_empty(unsigned int queue)
{
return !!(qmgr_get_stat1(queue) & QUEUE_STAT1_EMPTY);
}
static inline int qmgr_stat_nearly_empty(unsigned int queue)
{
return !!(qmgr_get_stat1(queue) & QUEUE_STAT1_NEARLY_EMPTY);
}
static inline int qmgr_stat_nearly_full(unsigned int queue)
{
return !!(qmgr_get_stat1(queue) & QUEUE_STAT1_NEARLY_FULL);
}
static inline int qmgr_stat_full(unsigned int queue)
{
return !!(qmgr_get_stat1(queue) & QUEUE_STAT1_FULL);
}
static inline int qmgr_stat_underflow(unsigned int queue)
{
return !!(qmgr_get_stat2(queue) & QUEUE_STAT2_UNDERFLOW);
}
static inline int qmgr_stat_overflow(unsigned int queue)
{
return !!(qmgr_get_stat2(queue) & QUEUE_STAT2_OVERFLOW);
}
#endif

2
include/asm-arm/arch-ixp4xx/uncompress.h
View file

@ -13,7 +13,7 @@
#ifndef _ARCH_UNCOMPRESS_H_
#define _ARCH_UNCOMPRESS_H_
#include <asm/hardware.h>
#include "ixp4xx-regs.h"
#include <asm/mach-types.h>
#include <linux/serial_reg.h>

13
include/asm-arm/arch-pxa/pxa3xx-regs.h
View file

@ -12,6 +12,19 @@
#ifndef __ASM_ARCH_PXA3XX_REGS_H
#define __ASM_ARCH_PXA3XX_REGS_H
/*
* Service Power Management Unit (MPMU)
*/
#define PMCR __REG(0x40F50000) /* Power Manager Control Register */
#define PSR __REG(0x40F50004) /* Power Manager S2 Status Register */
#define PSPR __REG(0x40F50008) /* Power Manager Scratch Pad Register */
#define PCFR __REG(0x40F5000C) /* Power Manager General Configuration Register */
#define PWER __REG(0x40F50010) /* Power Manager Wake-up Enable Register */
#define PWSR __REG(0x40F50014) /* Power Manager Wake-up Status Register */
#define PECR __REG(0x40F50018) /* Power Manager EXT_WAKEUP[1:0] Control Register */
#define DCDCSR __REG(0x40F50080) /* DC-DC Controller Status Register */
#define PVCR __REG(0x40F50100) /* Power Manager Voltage Change Control Register */
#define PCMD(x) __REG(0x40F50110 + ((x) << 2))
/*
* Slave Power Managment Unit

171
include/asm-arm/arch-realview/board-eb.h Normal file
View file

@ -0,0 +1,171 @@
/*
* include/asm-arm/arch-realview/board-eb.h
*
* Copyright (C) 2007 ARM Limited
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#ifndef __ASM_ARCH_BOARD_EB_H
#define __ASM_ARCH_BOARD_EB_H
#include <asm/arch/platform.h>
/*
* RealView EB + ARM11MPCore peripheral addresses
*/
#ifdef CONFIG_REALVIEW_EB_ARM11MP_REVB
#define REALVIEW_EB11MP_SCU_BASE 0x10100000 /* SCU registers */
#define REALVIEW_EB11MP_GIC_CPU_BASE 0x10100100 /* Generic interrupt controller CPU interface */
#define REALVIEW_EB11MP_TWD_BASE 0x10100700
#define REALVIEW_EB11MP_TWD_SIZE 0x00000100
#define REALVIEW_EB11MP_GIC_DIST_BASE 0x10101000 /* Generic interrupt controller distributor */
#define REALVIEW_EB11MP_L220_BASE 0x10102000 /* L220 registers */
#define REALVIEW_EB11MP_SYS_PLD_CTRL1 0xD8 /* Register offset for MPCore sysctl */
#else
#define REALVIEW_EB11MP_SCU_BASE 0x1F000000 /* SCU registers */
#define REALVIEW_EB11MP_GIC_CPU_BASE 0x1F000100 /* Generic interrupt controller CPU interface */
#define REALVIEW_EB11MP_TWD_BASE 0x1F000700
#define REALVIEW_EB11MP_TWD_SIZE 0x00000100
#define REALVIEW_EB11MP_GIC_DIST_BASE 0x1F001000 /* Generic interrupt controller distributor */
#define REALVIEW_EB11MP_L220_BASE 0x1F002000 /* L220 registers */
#define REALVIEW_EB11MP_SYS_PLD_CTRL1 0x74 /* Register offset for MPCore sysctl */
#endif
#define IRQ_EB_GIC_START 32
/*
* RealView EB interrupt sources
*/
#define IRQ_EB_WDOG (IRQ_EB_GIC_START + 0) /* Watchdog timer */
#define IRQ_EB_SOFT (IRQ_EB_GIC_START + 1) /* Software interrupt */
#define IRQ_EB_COMMRx (IRQ_EB_GIC_START + 2) /* Debug Comm Rx interrupt */
#define IRQ_EB_COMMTx (IRQ_EB_GIC_START + 3) /* Debug Comm Tx interrupt */
#define IRQ_EB_TIMER0_1 (IRQ_EB_GIC_START + 4) /* Timer 0 and 1 */
#define IRQ_EB_TIMER2_3 (IRQ_EB_GIC_START + 5) /* Timer 2 and 3 */
#define IRQ_EB_GPIO0 (IRQ_EB_GIC_START + 6) /* GPIO 0 */
#define IRQ_EB_GPIO1 (IRQ_EB_GIC_START + 7) /* GPIO 1 */
#define IRQ_EB_GPIO2 (IRQ_EB_GIC_START + 8) /* GPIO 2 */
/* 9 reserved */
#define IRQ_EB_RTC (IRQ_EB_GIC_START + 10) /* Real Time Clock */
#define IRQ_EB_SSP (IRQ_EB_GIC_START + 11) /* Synchronous Serial Port */
#define IRQ_EB_UART0 (IRQ_EB_GIC_START + 12) /* UART 0 on development chip */
#define IRQ_EB_UART1 (IRQ_EB_GIC_START + 13) /* UART 1 on development chip */
#define IRQ_EB_UART2 (IRQ_EB_GIC_START + 14) /* UART 2 on development chip */
#define IRQ_EB_UART3 (IRQ_EB_GIC_START + 15) /* UART 3 on development chip */
#define IRQ_EB_SCI (IRQ_EB_GIC_START + 16) /* Smart Card Interface */
#define IRQ_EB_MMCI0A (IRQ_EB_GIC_START + 17) /* Multimedia Card 0A */
#define IRQ_EB_MMCI0B (IRQ_EB_GIC_START + 18) /* Multimedia Card 0B */
#define IRQ_EB_AACI (IRQ_EB_GIC_START + 19) /* Audio Codec */
#define IRQ_EB_KMI0 (IRQ_EB_GIC_START + 20) /* Keyboard/Mouse port 0 */
#define IRQ_EB_KMI1 (IRQ_EB_GIC_START + 21) /* Keyboard/Mouse port 1 */
#define IRQ_EB_CHARLCD (IRQ_EB_GIC_START + 22) /* Character LCD */
#define IRQ_EB_CLCD (IRQ_EB_GIC_START + 23) /* CLCD controller */
#define IRQ_EB_DMA (IRQ_EB_GIC_START + 24) /* DMA controller */
#define IRQ_EB_PWRFAIL (IRQ_EB_GIC_START + 25) /* Power failure */
#define IRQ_EB_PISMO (IRQ_EB_GIC_START + 26) /* PISMO interface */
#define IRQ_EB_DoC (IRQ_EB_GIC_START + 27) /* Disk on Chip memory controller */
#define IRQ_EB_ETH (IRQ_EB_GIC_START + 28) /* Ethernet controller */
#define IRQ_EB_USB (IRQ_EB_GIC_START + 29) /* USB controller */
#define IRQ_EB_TSPEN (IRQ_EB_GIC_START + 30) /* Touchscreen pen */
#define IRQ_EB_TSKPAD (IRQ_EB_GIC_START + 31) /* Touchscreen keypad */
/*
* RealView EB + ARM11MPCore interrupt sources (primary GIC on the core tile)
*/
#define IRQ_EB11MP_AACI (IRQ_EB_GIC_START + 0)
#define IRQ_EB11MP_TIMER0_1 (IRQ_EB_GIC_START + 1)
#define IRQ_EB11MP_TIMER2_3 (IRQ_EB_GIC_START + 2)
#define IRQ_EB11MP_USB (IRQ_EB_GIC_START + 3)
#define IRQ_EB11MP_UART0 (IRQ_EB_GIC_START + 4)
#define IRQ_EB11MP_UART1 (IRQ_EB_GIC_START + 5)
#define IRQ_EB11MP_RTC (IRQ_EB_GIC_START + 6)
#define IRQ_EB11MP_KMI0 (IRQ_EB_GIC_START + 7)
#define IRQ_EB11MP_KMI1 (IRQ_EB_GIC_START + 8)
#define IRQ_EB11MP_ETH (IRQ_EB_GIC_START + 9)
#define IRQ_EB11MP_EB_IRQ1 (IRQ_EB_GIC_START + 10) /* main GIC */
#define IRQ_EB11MP_EB_IRQ2 (IRQ_EB_GIC_START + 11) /* tile GIC */
#define IRQ_EB11MP_EB_FIQ1 (IRQ_EB_GIC_START + 12) /* main GIC */
#define IRQ_EB11MP_EB_FIQ2 (IRQ_EB_GIC_START + 13) /* tile GIC */
#define IRQ_EB11MP_MMCI0A (IRQ_EB_GIC_START + 14)
#define IRQ_EB11MP_MMCI0B (IRQ_EB_GIC_START + 15)
#define IRQ_EB11MP_PMU_CPU0 (IRQ_EB_GIC_START + 17)
#define IRQ_EB11MP_PMU_CPU1 (IRQ_EB_GIC_START + 18)
#define IRQ_EB11MP_PMU_CPU2 (IRQ_EB_GIC_START + 19)
#define IRQ_EB11MP_PMU_CPU3 (IRQ_EB_GIC_START + 20)
#define IRQ_EB11MP_PMU_SCU0 (IRQ_EB_GIC_START + 21)
#define IRQ_EB11MP_PMU_SCU1 (IRQ_EB_GIC_START + 22)
#define IRQ_EB11MP_PMU_SCU2 (IRQ_EB_GIC_START + 23)
#define IRQ_EB11MP_PMU_SCU3 (IRQ_EB_GIC_START + 24)
#define IRQ_EB11MP_PMU_SCU4 (IRQ_EB_GIC_START + 25)
#define IRQ_EB11MP_PMU_SCU5 (IRQ_EB_GIC_START + 26)
#define IRQ_EB11MP_PMU_SCU6 (IRQ_EB_GIC_START + 27)
#define IRQ_EB11MP_PMU_SCU7 (IRQ_EB_GIC_START + 28)
#define IRQ_EB11MP_L220_EVENT (IRQ_EB_GIC_START + 29)
#define IRQ_EB11MP_L220_SLAVE (IRQ_EB_GIC_START + 30)
#define IRQ_EB11MP_L220_DECODE (IRQ_EB_GIC_START + 31)
#define IRQ_EB11MP_UART2 -1
#define IRQ_EB11MP_UART3 -1
#define IRQ_EB11MP_CLCD -1
#define IRQ_EB11MP_DMA -1
#define IRQ_EB11MP_WDOG -1
#define IRQ_EB11MP_GPIO0 -1
#define IRQ_EB11MP_GPIO1 -1
#define IRQ_EB11MP_GPIO2 -1
#define IRQ_EB11MP_SCI -1
#define IRQ_EB11MP_SSP -1
#define NR_GIC_EB11MP 2
/*
* Only define NR_IRQS if less than NR_IRQS_EB
*/
#define NR_IRQS_EB (IRQ_EB_GIC_START + 96)
#if defined(CONFIG_MACH_REALVIEW_EB) \
&& (!defined(NR_IRQS) || (NR_IRQS < NR_IRQS_EB))
#undef NR_IRQS
#define NR_IRQS NR_IRQS_EB
#endif
#if defined(CONFIG_REALVIEW_EB_ARM11MP) \
&& (!defined(MAX_GIC_NR) || (MAX_GIC_NR < NR_GIC_EB11MP))
#undef MAX_GIC_NR
#define MAX_GIC_NR NR_GIC_EB11MP
#endif
/*
* Core tile identification (REALVIEW_SYS_PROCID)
*/
#define REALVIEW_EB_PROC_MASK 0xFF000000
#define REALVIEW_EB_PROC_ARM7TDMI 0x00000000
#define REALVIEW_EB_PROC_ARM9 0x02000000
#define REALVIEW_EB_PROC_ARM11 0x04000000
#define REALVIEW_EB_PROC_ARM11MP 0x06000000
#define check_eb_proc(proc_type) \
((readl(__io_address(REALVIEW_SYS_PROCID)) & REALVIEW_EB_PROC_MASK) \
== proc_type)
#ifdef CONFIG_REALVIEW_EB_ARM11MP
#define core_tile_eb11mp() check_eb_proc(REALVIEW_EB_PROC_ARM11MP)
#else
#define core_tile_eb11mp() 0
#endif
#endif /* __ASM_ARCH_BOARD_EB_H */

3
include/asm-arm/arch-realview/entry-macro.S
View file

@ -14,7 +14,8 @@
.endm
.macro get_irqnr_preamble, base, tmp
ldr \base, =IO_ADDRESS(REALVIEW_GIC_CPU_BASE)
ldr \base, =gic_cpu_base_addr
ldr \base, [\base]
.endm
.macro arch_ret_to_user, tmp1, tmp2

1
include/asm-arm/arch-realview/hardware.h
View file

@ -23,7 +23,6 @@
#define __ASM_ARCH_HARDWARE_H
#include <asm/sizes.h>
#include <asm/arch/platform.h>
/* macro to get at IO space when running virtually */
#define IO_ADDRESS(x) ((((x) & 0x0effffff) | (((x) >> 4) & 0x0f000000)) + 0xf0000000)

101
include/asm-arm/arch-realview/irqs.h
View file

@ -19,103 +19,18 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <asm/arch/platform.h>
#ifndef __ASM_ARCH_IRQS_H
#define __ASM_ARCH_IRQS_H
#include <asm/arch/board-eb.h>
#define IRQ_LOCALTIMER 29
#define IRQ_LOCALWDOG 30
/*
* IRQ interrupts definitions are the same the INT definitions
* held within platform.h
*/
#define IRQ_GIC_START 32
#define IRQ_WDOGINT (IRQ_GIC_START + INT_WDOGINT)
#define IRQ_SOFTINT (IRQ_GIC_START + INT_SOFTINT)
#define IRQ_COMMRx (IRQ_GIC_START + INT_COMMRx)
#define IRQ_COMMTx (IRQ_GIC_START + INT_COMMTx)
#define IRQ_TIMERINT0_1 (IRQ_GIC_START + INT_TIMERINT0_1)
#define IRQ_TIMERINT2_3 (IRQ_GIC_START + INT_TIMERINT2_3)
#define IRQ_GPIOINT0 (IRQ_GIC_START + INT_GPIOINT0)
#define IRQ_GPIOINT1 (IRQ_GIC_START + INT_GPIOINT1)
#define IRQ_GPIOINT2 (IRQ_GIC_START + INT_GPIOINT2)
#define IRQ_GPIOINT3 (IRQ_GIC_START + INT_GPIOINT3)
#define IRQ_RTCINT (IRQ_GIC_START + INT_RTCINT)
#define IRQ_SSPINT (IRQ_GIC_START + INT_SSPINT)
#define IRQ_UARTINT0 (IRQ_GIC_START + INT_UARTINT0)
#define IRQ_UARTINT1 (IRQ_GIC_START + INT_UARTINT1)
#define IRQ_UARTINT2 (IRQ_GIC_START + INT_UARTINT2)
#define IRQ_UART3 (IRQ_GIC_START + INT_UARTINT3)
#define IRQ_SCIINT (IRQ_GIC_START + INT_SCIINT)
#define IRQ_CLCDINT (IRQ_GIC_START + INT_CLCDINT)
#define IRQ_DMAINT (IRQ_GIC_START + INT_DMAINT)
#define IRQ_PWRFAILINT (IRQ_GIC_START + INT_PWRFAILINT)
#define IRQ_MBXINT (IRQ_GIC_START + INT_MBXINT)
#define IRQ_GNDINT (IRQ_GIC_START + INT_GNDINT)
#define IRQ_MMCI0B (IRQ_GIC_START + INT_MMCI0B)
#define IRQ_MMCI1B (IRQ_GIC_START + INT_MMCI1B)
#define IRQ_KMI0 (IRQ_GIC_START + INT_KMI0)
#define IRQ_KMI1 (IRQ_GIC_START + INT_KMI1)
#define IRQ_SCI3 (IRQ_GIC_START + INT_SCI3)
#define IRQ_CLCD (IRQ_GIC_START + INT_CLCD)
#define IRQ_TOUCH (IRQ_GIC_START + INT_TOUCH)
#define IRQ_KEYPAD (IRQ_GIC_START + INT_KEYPAD)
#define IRQ_DoC (IRQ_GIC_START + INT_DoC)
#define IRQ_MMCI0A (IRQ_GIC_START + INT_MMCI0A)
#define IRQ_MMCI1A (IRQ_GIC_START + INT_MMCI1A)
#define IRQ_AACI (IRQ_GIC_START + INT_AACI)
#define IRQ_ETH (IRQ_GIC_START + INT_ETH)
#define IRQ_USB (IRQ_GIC_START + INT_USB)
#define IRQ_PMU_CPU0 (IRQ_GIC_START + INT_PMU_CPU0)
#define IRQ_PMU_CPU1 (IRQ_GIC_START + INT_PMU_CPU1)
#define IRQ_PMU_CPU2 (IRQ_GIC_START + INT_PMU_CPU2)
#define IRQ_PMU_CPU3 (IRQ_GIC_START + INT_PMU_CPU3)
#define IRQ_PMU_SCU0 (IRQ_GIC_START + INT_PMU_SCU0)
#define IRQ_PMU_SCU1 (IRQ_GIC_START + INT_PMU_SCU1)
#define IRQ_PMU_SCU2 (IRQ_GIC_START + INT_PMU_SCU2)
#define IRQ_PMU_SCU3 (IRQ_GIC_START + INT_PMU_SCU3)
#define IRQ_PMU_SCU4 (IRQ_GIC_START + INT_PMU_SCU4)
#define IRQ_PMU_SCU5 (IRQ_GIC_START + INT_PMU_SCU5)
#define IRQ_PMU_SCU6 (IRQ_GIC_START + INT_PMU_SCU6)
#define IRQ_PMU_SCU7 (IRQ_GIC_START + INT_PMU_SCU7)
#define IRQ_EB_IRQ1 (IRQ_GIC_START + INT_EB_IRQ1)
#define IRQ_EB_IRQ2 (IRQ_GIC_START + INT_EB_IRQ2)
#ifndef NR_IRQS
#error "NR_IRQS not defined by the board-specific files"
#endif
#define IRQMASK_WDOGINT INTMASK_WDOGINT
#define IRQMASK_SOFTINT INTMASK_SOFTINT
#define IRQMASK_COMMRx INTMASK_COMMRx
#define IRQMASK_COMMTx INTMASK_COMMTx
#define IRQMASK_TIMERINT0_1 INTMASK_TIMERINT0_1
#define IRQMASK_TIMERINT2_3 INTMASK_TIMERINT2_3
#define IRQMASK_GPIOINT0 INTMASK_GPIOINT0
#define IRQMASK_GPIOINT1 INTMASK_GPIOINT1
#define IRQMASK_GPIOINT2 INTMASK_GPIOINT2
#define IRQMASK_GPIOINT3 INTMASK_GPIOINT3
#define IRQMASK_RTCINT INTMASK_RTCINT
#define IRQMASK_SSPINT INTMASK_SSPINT
#define IRQMASK_UARTINT0 INTMASK_UARTINT0
#define IRQMASK_UARTINT1 INTMASK_UARTINT1
#define IRQMASK_UARTINT2 INTMASK_UARTINT2
#define IRQMASK_SCIINT INTMASK_SCIINT
#define IRQMASK_CLCDINT INTMASK_CLCDINT
#define IRQMASK_DMAINT INTMASK_DMAINT
#define IRQMASK_PWRFAILINT INTMASK_PWRFAILINT
#define IRQMASK_MBXINT INTMASK_MBXINT
#define IRQMASK_GNDINT INTMASK_GNDINT
#define IRQMASK_MMCI0B INTMASK_MMCI0B
#define IRQMASK_MMCI1B INTMASK_MMCI1B
#define IRQMASK_KMI0 INTMASK_KMI0
#define IRQMASK_KMI1 INTMASK_KMI1
#define IRQMASK_SCI3 INTMASK_SCI3
#define IRQMASK_UART3 INTMASK_UART3
#define IRQMASK_CLCD INTMASK_CLCD
#define IRQMASK_TOUCH INTMASK_TOUCH
#define IRQMASK_KEYPAD INTMASK_KEYPAD
#define IRQMASK_DoC INTMASK_DoC
#define IRQMASK_MMCI0A INTMASK_MMCI0A
#define IRQMASK_MMCI1A INTMASK_MMCI1A
#define IRQMASK_AACI INTMASK_AACI
#define IRQMASK_ETH INTMASK_ETH
#define IRQMASK_USB INTMASK_USB
#define NR_IRQS (IRQ_GIC_START + 96)
#endif

170
include/asm-arm/arch-realview/platform.h
View file

@ -18,8 +18,8 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __address_h
#define __address_h 1
#ifndef __ASM_ARCH_PLATFORM_H
#define __ASM_ARCH_PLATFORM_H
/*
* Memory definitions
@ -81,11 +81,12 @@
#define REALVIEW_SYS_24MHz_OFFSET 0x5C
#define REALVIEW_SYS_MISC_OFFSET 0x60
#define REALVIEW_SYS_IOSEL_OFFSET 0x70
#define REALVIEW_SYS_TEST_OSC0_OFFSET 0x80
#define REALVIEW_SYS_TEST_OSC1_OFFSET 0x84
#define REALVIEW_SYS_TEST_OSC2_OFFSET 0x88
#define REALVIEW_SYS_TEST_OSC3_OFFSET 0x8C
#define REALVIEW_SYS_TEST_OSC4_OFFSET 0x90
#define REALVIEW_SYS_PROCID_OFFSET 0x84
#define REALVIEW_SYS_TEST_OSC0_OFFSET 0xC0
#define REALVIEW_SYS_TEST_OSC1_OFFSET 0xC4
#define REALVIEW_SYS_TEST_OSC2_OFFSET 0xC8
#define REALVIEW_SYS_TEST_OSC3_OFFSET 0xCC
#define REALVIEW_SYS_TEST_OSC4_OFFSET 0xD0
#define REALVIEW_SYS_BASE 0x10000000
#define REALVIEW_SYS_ID (REALVIEW_SYS_BASE + REALVIEW_SYS_ID_OFFSET)
@ -114,6 +115,7 @@
#define REALVIEW_SYS_24MHz (REALVIEW_SYS_BASE + REALVIEW_SYS_24MHz_OFFSET)
#define REALVIEW_SYS_MISC (REALVIEW_SYS_BASE + REALVIEW_SYS_MISC_OFFSET)
#define REALVIEW_SYS_IOSEL (REALVIEW_SYS_BASE + REALVIEW_SYS_IOSEL_OFFSET)
#define REALVIEW_SYS_PROCID (REALVIEW_SYS_BASE + REALVIEW_SYS_PROCID_OFFSET)
#define REALVIEW_SYS_TEST_OSC0 (REALVIEW_SYS_BASE + REALVIEW_SYS_TEST_OSC0_OFFSET)
#define REALVIEW_SYS_TEST_OSC1 (REALVIEW_SYS_BASE + REALVIEW_SYS_TEST_OSC1_OFFSET)
#define REALVIEW_SYS_TEST_OSC2 (REALVIEW_SYS_BASE + REALVIEW_SYS_TEST_OSC2_OFFSET)
@ -203,30 +205,8 @@
/* Reserved 0x1001A000 - 0x1001FFFF */
#define REALVIEW_CLCD_BASE 0x10020000 /* CLCD */
#define REALVIEW_DMAC_BASE 0x10030000 /* DMA controller */
#ifndef CONFIG_REALVIEW_MPCORE
#define REALVIEW_GIC_CPU_BASE 0x10040000 /* Generic interrupt controller CPU interface */
#define REALVIEW_GIC_DIST_BASE 0x10041000 /* Generic interrupt controller distributor */
#else
#ifdef CONFIG_REALVIEW_MPCORE_REVB
#define REALVIEW_MPCORE_SCU_BASE 0x10100000 /* SCU registers */
#define REALVIEW_GIC_CPU_BASE 0x10100100 /* Generic interrupt controller CPU interface */
#define REALVIEW_TWD_BASE 0x10100700
#define REALVIEW_TWD_SIZE 0x00000100
#define REALVIEW_GIC_DIST_BASE 0x10101000 /* Generic interrupt controller distributor */
#define REALVIEW_MPCORE_L220_BASE 0x10102000 /* L220 registers */
#define REALVIEW_MPCORE_SYS_PLD_CTRL1 0xD8 /* Register offset for MPCore sysctl */
#else
#define REALVIEW_MPCORE_SCU_BASE 0x1F000000 /* SCU registers */
#define REALVIEW_GIC_CPU_BASE 0x1F000100 /* Generic interrupt controller CPU interface */
#define REALVIEW_TWD_BASE 0x1F000700
#define REALVIEW_TWD_SIZE 0x00000100
#define REALVIEW_GIC_DIST_BASE 0x1F001000 /* Generic interrupt controller distributor */
#define REALVIEW_MPCORE_L220_BASE 0x1F002000 /* L220 registers */
#define REALVIEW_MPCORE_SYS_PLD_CTRL1 0x74 /* Register offset for MPCore sysctl */
#endif
#define REALVIEW_GIC1_CPU_BASE 0x10040000 /* Generic interrupt controller CPU interface */
#define REALVIEW_GIC1_DIST_BASE 0x10041000 /* Generic interrupt controller distributor */
#endif
#define REALVIEW_SMC_BASE 0x10080000 /* SMC */
/* Reserved 0x10090000 - 0x100EFFFF */
@ -283,134 +263,6 @@
#define REALVIEW_INTREG_OFFSET 0x8 /* Interrupt control */
#define REALVIEW_DECODE_OFFSET 0xC /* Fitted logic modules */
/* ------------------------------------------------------------------------
* Interrupts - bit assignment (primary)
* ------------------------------------------------------------------------
*/
#ifndef CONFIG_REALVIEW_MPCORE
#define INT_WDOGINT 0 /* Watchdog timer */
#define INT_SOFTINT 1 /* Software interrupt */
#define INT_COMMRx 2 /* Debug Comm Rx interrupt */
#define INT_COMMTx 3 /* Debug Comm Tx interrupt */
#define INT_TIMERINT0_1 4 /* Timer 0 and 1 */
#define INT_TIMERINT2_3 5 /* Timer 2 and 3 */
#define INT_GPIOINT0 6 /* GPIO 0 */
#define INT_GPIOINT1 7 /* GPIO 1 */
#define INT_GPIOINT2 8 /* GPIO 2 */
/* 9 reserved */
#define INT_RTCINT 10 /* Real Time Clock */
#define INT_SSPINT 11 /* Synchronous Serial Port */
#define INT_UARTINT0 12 /* UART 0 on development chip */
#define INT_UARTINT1 13 /* UART 1 on development chip */
#define INT_UARTINT2 14 /* UART 2 on development chip */
#define INT_UARTINT3 15 /* UART 3 on development chip */
#define INT_SCIINT 16 /* Smart Card Interface */
#define INT_MMCI0A 17 /* Multimedia Card 0A */
#define INT_MMCI0B 18 /* Multimedia Card 0B */
#define INT_AACI 19 /* Audio Codec */
#define INT_KMI0 20 /* Keyboard/Mouse port 0 */
#define INT_KMI1 21 /* Keyboard/Mouse port 1 */
#define INT_CHARLCD 22 /* Character LCD */
#define INT_CLCDINT 23 /* CLCD controller */
#define INT_DMAINT 24 /* DMA controller */
#define INT_PWRFAILINT 25 /* Power failure */
#define INT_PISMO 26
#define INT_DoC 27 /* Disk on Chip memory controller */
#define INT_ETH 28 /* Ethernet controller */
#define INT_USB 29 /* USB controller */
#define INT_TSPENINT 30 /* Touchscreen pen */
#define INT_TSKPADINT 31 /* Touchscreen keypad */
#else
#define MAX_GIC_NR 2
#define INT_AACI 0
#define INT_TIMERINT0_1 1
#define INT_TIMERINT2_3 2
#define INT_USB 3
#define INT_UARTINT0 4
#define INT_UARTINT1 5
#define INT_RTCINT 6
#define INT_KMI0 7
#define INT_KMI1 8
#define INT_ETH 9
#define INT_EB_IRQ1 10 /* main GIC */
#define INT_EB_IRQ2 11 /* tile GIC */
#define INT_EB_FIQ1 12 /* main GIC */
#define INT_EB_FIQ2 13 /* tile GIC */
#define INT_MMCI0A 14
#define INT_MMCI0B 15
#define INT_PMU_CPU0 17
#define INT_PMU_CPU1 18
#define INT_PMU_CPU2 19
#define INT_PMU_CPU3 20
#define INT_PMU_SCU0 21
#define INT_PMU_SCU1 22
#define INT_PMU_SCU2 23
#define INT_PMU_SCU3 24
#define INT_PMU_SCU4 25
#define INT_PMU_SCU5 26
#define INT_PMU_SCU6 27
#define INT_PMU_SCU7 28
#define INT_L220_EVENT 29
#define INT_L220_SLAVE 30
#define INT_L220_DECODE 31
#define INT_UARTINT2 -1
#define INT_UARTINT3 -1
#define INT_CLCDINT -1
#define INT_DMAINT -1
#define INT_WDOGINT -1
#define INT_GPIOINT0 -1
#define INT_GPIOINT1 -1
#define INT_GPIOINT2 -1
#define INT_SCIINT -1
#define INT_SSPINT -1
#endif
/*
* Interrupt bit positions
*
*/
#define INTMASK_WDOGINT (1 << INT_WDOGINT)
#define INTMASK_SOFTINT (1 << INT_SOFTINT)
#define INTMASK_COMMRx (1 << INT_COMMRx)
#define INTMASK_COMMTx (1 << INT_COMMTx)
#define INTMASK_TIMERINT0_1 (1 << INT_TIMERINT0_1)
#define INTMASK_TIMERINT2_3 (1 << INT_TIMERINT2_3)
#define INTMASK_GPIOINT0 (1 << INT_GPIOINT0)
#define INTMASK_GPIOINT1 (1 << INT_GPIOINT1)
#define INTMASK_GPIOINT2 (1 << INT_GPIOINT2)
#define INTMASK_RTCINT (1 << INT_RTCINT)
#define INTMASK_SSPINT (1 << INT_SSPINT)
#define INTMASK_UARTINT0 (1 << INT_UARTINT0)
#define INTMASK_UARTINT1 (1 << INT_UARTINT1)
#define INTMASK_UARTINT2 (1 << INT_UARTINT2)
#define INTMASK_UARTINT3 (1 << INT_UARTINT3)
#define INTMASK_SCIINT (1 << INT_SCIINT)
#define INTMASK_MMCI0A (1 << INT_MMCI0A)
#define INTMASK_MMCI0B (1 << INT_MMCI0B)
#define INTMASK_AACI (1 << INT_AACI)
#define INTMASK_KMI0 (1 << INT_KMI0)
#define INTMASK_KMI1 (1 << INT_KMI1)
#define INTMASK_CHARLCD (1 << INT_CHARLCD)
#define INTMASK_CLCDINT (1 << INT_CLCDINT)
#define INTMASK_DMAINT (1 << INT_DMAINT)
#define INTMASK_PWRFAILINT (1 << INT_PWRFAILINT)
#define INTMASK_PISMO (1 << INT_PISMO)
#define INTMASK_DoC (1 << INT_DoC)
#define INTMASK_ETH (1 << INT_ETH)
#define INTMASK_USB (1 << INT_USB)
#define INTMASK_TSPENINT (1 << INT_TSPENINT)
#define INTMASK_TSKPADINT (1 << INT_TSKPADINT)
#define MAXIRQNUM 31
#define MAXFIQNUM 31
#define MAXSWINUM 31
/*
* Application Flash
*
@ -463,6 +315,4 @@
#define REALVIEW_CSR_BASE 0x10000000
#define REALVIEW_CSR_SIZE 0x10000000
#endif
/* END */
#endif /* __ASM_ARCH_PLATFORM_H */

4
include/asm-arm/arch-realview/scu.h
View file

@ -1,8 +1,8 @@
#ifndef __ASMARM_ARCH_SCU_H
#define __ASMARM_ARCH_SCU_H
#include <asm/arch/platform.h>
#include <asm/arch/board-eb.h>
#define SCU_BASE REALVIEW_MPCORE_SCU_BASE
#define SCU_BASE REALVIEW_EB11MP_SCU_BASE
#endif

2
include/asm-arm/arch-realview/uncompress.h
View file

@ -19,6 +19,8 @@
*/
#include <asm/hardware.h>
#include <asm/arch/platform.h>
#define AMBA_UART_DR (*(volatile unsigned char *) (REALVIEW_UART0_BASE + 0x00))
#define AMBA_UART_LCRH (*(volatile unsigned char *) (REALVIEW_UART0_BASE + 0x2c))
#define AMBA_UART_CR (*(volatile unsigned char *) (REALVIEW_UART0_BASE + 0x30))

5
include/asm-arm/hardware/arm_twd.h
View file

@ -13,4 +13,9 @@
#define TWD_WDOG_RESETSTAT 0x30
#define TWD_WDOG_DISABLE 0x34
#define TWD_TIMER_CONTROL_ENABLE (1 << 0)
#define TWD_TIMER_CONTROL_ONESHOT (0 << 1)
#define TWD_TIMER_CONTROL_PERIODIC (1 << 1)
#define TWD_TIMER_CONTROL_IT_ENABLE (1 << 2)
#endif

3
include/asm-arm/kexec.h
View file

@ -16,6 +16,9 @@
#define KEXEC_BOOT_PARAMS_SIZE 1536
#define KEXEC_ARM_ATAGS_OFFSET 0x1000
#define KEXEC_ARM_ZIMAGE_OFFSET 0x8000
#ifndef __ASSEMBLY__
struct kimage;

21
include/asm-arm/smp.h
View file

@ -60,6 +60,11 @@ extern void smp_cross_call(cpumask_t callmap);
*/
extern void smp_send_timer(void);
/*
* Broadcast a clock event to other CPUs.
*/
extern void smp_timer_broadcast(cpumask_t mask);
/*
* Boot a secondary CPU, and assign it the specified idle task.
* This also gives us the initial stack to use for this CPU.
@ -96,11 +101,12 @@ extern void platform_cpu_die(unsigned int cpu);
extern int platform_cpu_kill(unsigned int cpu);
extern void platform_cpu_enable(unsigned int cpu);
#ifdef CONFIG_LOCAL_TIMERS
/*
* Setup a local timer interrupt for a CPU.
* Local timer interrupt handling function (can be IPI'ed).
*/
extern void local_timer_setup(unsigned int cpu);
extern void local_timer_interrupt(void);
#ifdef CONFIG_LOCAL_TIMERS
/*
* Stop a local timer interrupt.
@ -114,16 +120,17 @@ extern int local_timer_ack(void);
#else
static inline void local_timer_setup(unsigned int cpu)
{
}
static inline void local_timer_stop(unsigned int cpu)
{
}
#endif
/*
* Setup a local timer interrupt for a CPU.
*/
extern void local_timer_setup(unsigned int cpu);
/*
* show local interrupt info
*/

2
drivers/serial/atmel_serial.h → include/linux/atmel_serial.h
View file

@ -1,5 +1,5 @@
/*
* drivers/serial/atmel_serial.h
* include/linux/atmel_serial.h
*
* Copyright (C) 2005 Ivan Kokshaysky
* Copyright (C) SAN People