Commit graph

2986 commits

Author SHA1 Message Date
Scott Wood
dc4f397d6e [POWERPC] bootwrapper: serial_console_init() fixes
1. Search the entire compatible list for serial devices.

The serial code previously did a simple strcmp on the compatible
node; this fails when the match string is not the first compatible
listed.  Use dt_is_compatible() instead.

2. Don't call serial_edit_cmdline if getc isn't defined.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:21:48 +10:00
Scott Wood
61d3b949b7 [POWERPC] bootwrapper: Add TARGET_HAS_ETHn tests to ppcboot.h
U-boots more recent than when ppcboot.h was forked allow the board config
file to enable additional ethernet ports explicitly, rather than
using a hardcoded list of targets.  This allows bootwrapper platform
files to do the same.

Fortunately, nothing after the ethernet addresses is of interest to
cuboot platforms, so the inevitable mismatches won't be too catastrophic.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:21:48 +10:00
Scott Wood
6e913c67b3 [POWERPC] bootwrapper: Add 16-bit I/O, sync(), eieio(), and barrier()
Also, include types.h from io.h, so callers don't have to.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:21:48 +10:00
Scott Wood
a73ac50c47 [POWERPC] bootwrapper: Add dt_is_compatible()
This can be used rather than doing a simple strcmp, which will fail to
handle multiple compatible entries.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:21:48 +10:00
Scott Wood
0602801c22 [POWERPC] bootwrapper: dt_xlate_range() bugfixes
1. The check whether ranges fits in the buffer was using elements rather
than bytes.
2. Empty ranges were not properly treated as transparent, and missing
ranges were treated as transparent.
3. The loop terminated when translating from the root rather than to.  Once
bug #2 was fixed, it failed due to a missing ranges in the root node.
4. In decoding the ranges property, the #size-cells used was that of
the parent, not the child.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:21:48 +10:00
Scott Wood
643d3c139b [POWERPC] bootwrapper: Set timebase_period_ns from dt_fixup_cpu_clocks
This lets udelay() work properly on platforms which use dt_fixup_cpu_clocks.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:21:47 +10:00
Scott Wood
44d06ba729 [POWERPC] bootwrapper: Update .gitignore
All cuImage types are ignored, as well as preprocessed .lds files,
and the forthcoming zImage.bin files and embedded planet board images.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:21:47 +10:00
Scott Wood
4b218e9bb2 [POWERPC] Whitespace cleanup in arch/powerpc
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:21:47 +10:00
Stephen Rothwell
16a15a30f8 [POWERPC] iSeries: Clean up lparmap mess
We need to have xLparMap in head_64.S so that it is at a fixed address
(because the linker will not resolve (address & 0xffffffff) for us).
But the assembler miscalculates the KERNEL_VSID() expressions.  So put
the confusing expressions into asm-offsets.c.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:21:46 +10:00
Olaf Hering
556ecf9be6 [POWERPC] Advertise correct IDE mode on Pegasos2
The built-in IDE controller is configured in legacy mode, but the PCI
registers advertise native mode.  Force the PCI class into legacy
mode. This allows pata_via to access two drives.

The Pegasos specific irq enforcement in the via82cxxx driver must stay
because there is apparently no generic way to setup irq per channel.

Tested on Pegasos2 with firmware version 20040810, and two IDE disks.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:21:46 +10:00
Kumar Gala
15f6ddc7d9 [POWERPC] Fix PCI Device ID for MPC8544/8533 processors
The initial user manuals for MPC8544/8533 had some issues with properly
documenting the device IDs for MPC8544/8533.  These processors are almost
identical and both show up on the reference boards.

Fix up the quirks for PCIe support to handle MPC8533/E.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-21 19:15:31 -05:00
Linus Torvalds
2046219364 Merge branch 'fixes-2.6.23' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc
* 'fixes-2.6.23' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc:
  [POWERPC] Fix 8xx compile failure
  [POWERPC] Fix FSL BookE machine check reporting
  [POWERPC] Fix interrupt routing and setup of ULI M1575 on FSL boards
  [POWERPC] Add interrupt resource for RTC CMOS driver
2007-08-20 22:43:18 -07:00
Josh Boyer
2ba4573cda [POWERPC] Bamboo zImage wrapper
Add a bootwrapper for the AMCC 440EP Bamboo Eval board.  This also adds a
common fixup_clock function for all 440EP(x) chips.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-08-20 07:30:32 -05:00
Josh Boyer
8c1449bdb4 [POWERPC] Bamboo board support
Add support for the AMCC Bamboo board

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-08-20 07:30:14 -05:00
Josh Boyer
142b58ee56 [POWERPC] Bamboo DTS
AMCC Bamboo board DTS

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-08-20 07:29:55 -05:00
Josh Boyer
1daa194a87 [POWERPC] Fix 40x build
Remove inclusion of __res on 40x.  We don't need it in arch/powerpc

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-08-20 07:29:36 -05:00
Josh Boyer
aab69292e4 [POWERPC] 40x decrementer fixes
Allow generic_calibrate_decr to work for 40x platforms.  Given that the hardware
behavior is identical, this also changes the set_dec function to reload the PIT
on 40x to match the behavior 44x currently has.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-08-20 07:29:11 -05:00
Josh Boyer
4d922c8dc3 [POWERPC] 40x MMU
Add MMU definitions for 40x platforms.  Also fixes two warnings in 40x_mmu.c.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-08-20 07:28:48 -05:00
Josh Boyer
e90f3b74d8 [POWERPC] 4xx bootwrapper reworks
Make the fixup_memsize function common for all of 4xx as several chips share
the same SDRAM controller.  Also add functions to reset 40x chips and quiesce
the ethernet.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-08-20 07:28:30 -05:00
Josh Boyer
869680c16f [POWERPC] Rename 44x bootwrapper
Rename the 44x.c wrapper file to 4xx.c.  This will allow us to add common
functions in a single file that can be shared across all of 4xx.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-08-20 07:28:05 -05:00
Josh Boyer
3cc248ae6e [POWERPC] 4xx Kconfig cleanup
Remove some leftover cruft in the 40x Kconfig file.  Also make sure we
select WANT_DEVICE_TREE for 40x.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-08-20 07:27:42 -05:00
Josh Boyer
15f6527e8e [POWERPC] Rename 4xx paths to 40x
4xx is a bit of a misnomer for certain things, as they really apply to PowerPC
40x only.  Rename some of the files to clean this up.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-08-20 07:27:07 -05:00
Kumar Gala
0af666fa6c [POWERPC] Fix 8xx compile failure
CC      arch/powerpc/sysdev/commproc.o
arch/powerpc/sysdev/fsl_soc.c: In function fsl_pcmcia_of_init:
arch/powerpc/sysdev/fsl_soc.c:1109: error: implicit declaration of function of_platform_device_create

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-17 13:22:33 -05:00
Becky Bruce
86d7a9a9c4 [POWERPC] Fix FSL BookE machine check reporting
Reserved MCSR bits on FSL BookE parts may have spurious values
when mcheck occurs.  Mask these off when printing the MCSR to
avoid confusion.  Also, get rid of the MCSR_GL_CI bit defined
for e500 - this bit doesn't actually have any meaning.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-17 13:22:28 -05:00
Kumar Gala
b66510cb99 [POWERPC] Fix interrupt routing and setup of ULI M1575 on FSL boards
The interrupt routing in the device trees for the ULI M1575 was
inproperly using the interrupt line field as pci function.  Fixed
up the device tree's to actual conform for to specification and
changed the interrupt mapping code so it just uses a static mapping
setup as follows:

PIRQA - IRQ9
PIRQB - IRQ10
PIRQC - IRQ11
PIRQD - IRQ12
USB 1.1 OCHI (1c.0) - IRQ12
USB 1.1 OCHI (1c.1) - IRQ9
USB 1.1 OCHI (1c.2) - IRQ10
USB 1.1 ECHI (1c.3) - IRQ11
LAN (1b.0) - IRQ6
AC97 (1d.0) - IRQ6
Modem (1d.1) - IRQ6
HD Audio (1d.2) - IRQ6
SATA (1f.1) - IRQ5
SMB (1e.1) - IRQ7
PMU (1e.2) - IRQ7
PATA (1f.0) - IRQ14/15

Took the oppurtunity to refactor the code into a single file so we
don't have to duplicate these fixes on the two current boards in the
tree and several forth coming boards that will also need the code.

Fixed RTC support that requires a dummy memory read on the P2P bridge
to unlock the RTC and setup the default of the RTC alarm registers to
match with a basic x86 style CMOS RTC.

Moved code that poked ISA registers to a FIXUP_FINAL quirk to ensure
the PCI IO space has been setup properly before we start poking ISA
registers at random locations.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-17 13:22:16 -05:00
Kumar Gala
ada3ea6fcd [POWERPC] Add interrupt resource for RTC CMOS driver
The RTC CMOS driver expects the interrupt to be a resource of the platform
device.  Use a fixed interrupt value of 8 since on PPC if we are using this
its off an i8259 which we ensure has interrupt numbers 0..15.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-17 13:18:58 -05:00
Stephen Rothwell
a65517f857 [POWERPC] Remove some duplicate declarations from pmac.h
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:02:06 +10:00
Guennadi Liakhovetski
e78bb5dc2e [POWERPC] Fix i2c device string format
Use strlcpy() to guarantee strings in i2c device type and driver_name
fields are 0-terminated.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:02:06 +10:00
Stephen Rothwell
750d1d1ca1 [POWERPC] Fix section mismatch in pasemi/iommu.c
These functions are only called by __init functions.

WARNING: vmlinux.o(.text+0x56aa0): Section mismatch: reference to .init.text:.lmb_alloc (between '.iob_init' and '.iommu_init_early_pasemi')

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:02:06 +10:00
Stephen Rothwell
124d795d16 [POWERPC] Fix section mismatches in udbg_adb.c
The functions are only called from __init functions.

WARNING: vmlinux.o(.text+0x45ed0): Section mismatch: reference to .init.text:.btext_find_display (between '.udbg_adb_init_early' and '.udbg_adb_init')
WARNING: vmlinux.o(.text+0x45f9c): Section mismatch: reference to .init.text:.btext_find_display (between '.udbg_adb_init' and '.udbg_adb_getc_poll')
WARNING: vmlinux.o(.text+0x46000): Section mismatch: reference to .init.text:.find_via_pmu (between '.udbg_adb_init' and '.udbg_adb_getc_poll')

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:02:06 +10:00
Stephen Rothwell
109b60f0bc [POWERPC] Fix section mismatch in dart_iommu.c
These functions are only called from __init functions.

WARNING: vmlinux.o(.text+0x398f4): Section mismatch: reference to .init.text:.lmb_alloc (between '.iommu_init_early_dart' and '.pci_dma_bus_setup_dart')

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:02:06 +10:00
Stephen Rothwell
d56c3aaa9f [POWERPC] Fix section mismatch in crash_dump.c
WARNING: vmlinux.o(.text+0x23258): Section mismatch: reference to .init.text:.lmb_reserve (between '.reserve_kdump_trampoline' and '.restore_processor_state')

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:02:06 +10:00
David Gibson
553fdff633 [POWERPC] Improve robustness of the UIC cascade handler
At present the cascade interrupt handler for the UIC (interrupt
controller on 4xx embedded chips) will misbehave badly if it is called
spuriously - that is if the handler is invoked when no interrupts are
asserted in the child UIC.

Although spurious interrupts shouldn't happen, it's good to behave
robustly if they do.  This patch does so by checking for and ignoring
spurious interrupts.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:02:06 +10:00
David Gibson
868afce21f [POWERPC] Fix irq flow handler for 4xx UIC
At present the driver for the UIC (the embedded interrupt controller
in 4xx chips) uses the handle_level_irq() flow handler.  It turns out
this does not correctly handle level triggered interrupts on the UIC.

Specifically, acknowledging an irq on the UIC (i.e. clearing the
relevant bit in UIC_SR) will have no effect for a level interrupt
which is still asserted by the external device, even if the irq is
already masked.  Therefore, unlike handle_level_irq() we must ack the
interrupt after invoking the ISR (which should cause the device to
stop asserting the irq) instead of acking it when we mask it, before
the ISR.

This patch implements this change, in a new handle_uic_irq(), a
customised irq flow handler for the UIC.  For edge triggered
interrupts, handle_uic_irq() still uses the old flow - we must ack
edge triggered interrupt before the ISR not after, or we could miss a
second event which occurred between invoking the ISR and acking the
irq.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:02:05 +10:00
David Gibson
4dc7b4b040 [POWERPC] Fix setting of irq trigger type in UIC driver
The UIC (interrupt controller in 4xx embedded CPUs) driver currently
missets the IRQ_lEVEL flag in desc->status, due to a thinko.  This
patch fixes the bug.

Currently this is only a cosmetic problem (affects the output in
/proc/interrupts), however subsequent patches will use the IRQ_LEVEL
flag to affect flow handling.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:02:05 +10:00
Stephen Rothwell
e8ff0646e5 [POWERPC] Tidy up CONFIG_PPC_MM_SLICES code
This removes some of the #ifdefs from .c files.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:59 +10:00
Stephen Rothwell
9dfe5c53d0 [POWERPC] Fix non HUGETLB_PAGE build warning
arch/powerpc/mm/mmu_context_64.c: In function 'init_new_context':
arch/powerpc/mm/mmu_context_64.c:31: warning: unused variable 'new_context'

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:58 +10:00
Paul Mackerras
c6d4267ece [POWERPC] Handle alignment faults on new FP load/store instructions
This adds code to handle alignment traps generated by the following
new floating-point load/store instructions, by emulating the
instruction in the kernel (as is done for other instructions that
generate alignment traps):

lfiwax	load floating-point as integer word algebraic indexed
stfiwx	store floating-point as integer word indexed
lfdp	load floating-point double pair
lfdpx	load floating-point double pair indexed
stfdp	store floating-point double pair
stfdpx	store floating-point double pair indexed

All these except stfiwx are new in POWER6.

lfdp/lfdpx/stfdp/stfdpx load and store 16 bytes of memory into an
even/odd FP register pair.  In little-endian mode each 8-byte value is
byte-reversed separately (i.e. not as a 16-byte unit).  lfiwax/stfiwx
load or store the lower 4 bytes of a floating-point register from/to
memory; lfiwax sets the upper 4 bytes of the FP register to the sign
extension of the value loaded.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:55 +10:00
Linas Vepstas
09a54101e1 [POWERPC] pseries: Remove dead EEH video code
Remove dead code, and a misleading comment about EEH checking
for video devices.  The removed code is a left-over from the
olden days where there was concern over how video devices
worked in Linux. We are never going to go that way again,
so kill this.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>

----
 arch/powerpc/platforms/pseries/eeh.c |   17 -----------------
 1 file changed, 17 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:54 +10:00
Nathan Lynch
0f7f2fb85a [POWERPC] Remove gratuitous reads from powermac pci config space methods
The powermac pci configuration space write methods read the written
location immediately after the write is performed, presumably in order
to flush the write.  However, configuration space writes are not
allowed to be posted, making these reads gratuitous.  Furthermore,
this behavior potentially causes us to violate the PCI PM spec when
changing between e.g. D0 and D3 states, because a delay of up to 10ms
may be required before the OS accesses configuration space after the
write which initiates the transition.

Remove the unnecessary reads from macrisc_write_config,
u3_ht_write_config, and u4_pcie_write_config.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:54 +10:00
Nathan Lynch
b139f1fb0f [POWERPC] Remove gratuitous reads from pasemi pci config space methods
The pasemi pci configuration space write method reads the written
location immediately after the write is performed, presumably in order
to flush the write.  However, configuration space writes are not
allowed to be posted, making these reads gratuitous.  Furthermore,
this behavior potentially causes us to violate the PCI PM spec when
changing between e.g. D0 and D3 states, because a delay of up to 10ms
may be required before the OS accesses configuration space after the
write which initiates the transition.

Remove the unnecessary reads from pa_pxp_write_config.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:54 +10:00
Nathan Lynch
8935fa0fe6 [POWERPC] tsi108_direct_pci_ops: Use named structure member initializers
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:54 +10:00
Nathan Lynch
c78d453b6f [POWERPC] indirect_pci_ops: Use named structure member initializers
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:54 +10:00
Nathan Lynch
f1d645f428 [POWERPC] chrp pci_ops: Use named structure member initializers
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:54 +10:00
Nathan Lynch
21d8f6c728 [POWERPC] efika rtas_pci_ops: Use named structure member initializers
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:54 +10:00
Nathan Lynch
6127d1c0b0 [POWERPC] null_pci_ops: Use named structure member initializers
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:53 +10:00
Nathan Lynch
3fac10e7f5 [POWERPC] powermac pci_ops: Use named structure member initializers
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:53 +10:00
Nathan Lynch
1bb8c6216f [POWERPC] pa_pxp_ops: Use named structure member initializers
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:53 +10:00
Nathan Lynch
2e67d40762 [POWERPC] maple pci_ops: Use named structure member initializers
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:53 +10:00
Nathan Lynch
3e02aebbca [POWERPC] celleb_epci_ops: Use named structure member initializers
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:53 +10:00
Nathan Lynch
aec249bc19 [POWERPC] celleb_fake_pci_ops: Use named structure member initializers
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:53 +10:00
Nathan Lynch
8674e0c9e5 [POWERPC] rtas_pci_ops: Use named structure member initializers
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:53 +10:00
Nathan Lynch
1bdb2867e5 [POWERPC] Remove gratuitous reads from maple PCI config space methods
The maple PCI configuration space write methods read the written
location immediately after the write is performed, presumably in order
to flush the write.  However, configuration space writes are not
allowed to be posted, making these reads gratuitous.  Furthermore,
this behavior potentially causes us to violate the PCI PM spec when
changing between e.g. D0 and D3 states, because a delay of up to 10ms
may be required before the OS accesses configuration space after the
write which initiates the transition.  It definitely causes a system
hang for me with a Broadcom 5721 PCIE network adapter, which is fixed
by this change.

Therefore this removes the gratuitous reads from u3_agp_write_config,
u3_ht_write_config, and u4_pcie_write_config.

Signed-off-by: Nathan Lynch <ntl@pobox.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:53 +10:00
Murali Iyer
96b952dd4b [POWERPC] Export DCR symbols for modules
In order to compile drivers as modules that uses some of the
DCR functions, we need to export the symbols.  Example, EMAC
driver and other drivers that are under development use these
functions.

Signed-off-by: Murali Iyer <mniyer@us.ibm.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:52 +10:00
Linas Vepstas
0f2342c85d [POWERPC] pseries: Eliminate global error_log_cnt variable
Eliminate the use of error_log_cnt as a global var shared across
different directories.  Pass it as a parameter instead.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>

----

Respin of earlier patch, with the CONFIG_PSERIES junk removed from the
header file.

 arch/powerpc/kernel/nvram_64.c         |   10 +++++-----
 arch/powerpc/platforms/pseries/rtasd.c |    7 ++++---
 include/asm-powerpc/nvram.h            |    6 ++++--
 3 files changed, 13 insertions(+), 10 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:52 +10:00
Linas Vepstas
79c0108d1b [POWERPC] pseries: Fix jumbled no_logging flag
Get rid of the jumbled usage of the no_logging flag. Its use
spans several directories, and is incorrectly/misleadingly
documented. Instead, two changes:
1) nvram will accept error log as soon as its ready.
2) logging to nvram stops on the first fatal error reported.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>

----
 arch/powerpc/kernel/nvram_64.c         |    8 --------
 arch/powerpc/platforms/pseries/rtasd.c |   14 ++++++--------
 2 files changed, 6 insertions(+), 16 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:52 +10:00
Linas Vepstas
72755f4407 [POWERPC] Remove nvram forward declarations
Forward declarations serve no purpose in this file.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>

----

 arch/powerpc/kernel/nvram_64.c |    5 -----
 1 file changed, 5 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:52 +10:00
Linas Vepstas
4511dad42a [POWERPC] pseries: Simplify rtasd initialization
Simplify rtasd initialization code; this also fixes a buglet,
where the /proc entries weren't being cleaned up in case of
failure.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>

----
 arch/powerpc/platforms/pseries/rtasd.c |   53 +++++++++++----------------------
 1 file changed, 19 insertions(+), 34 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:52 +10:00
Linas Vepstas
ba28cc0931 [POWERPC] pseries: Use rtas_token instead of hand-rolled code
The rtas_token() call does the same thing as this hand-rolled code.
This makes the code easier to read.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>

----
 arch/powerpc/platforms/pseries/rtasd.c |   13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:52 +10:00
Linas Vepstas
a4fc3a3cea [POWERPC] pseries: Avoid excess rtas_token calls
We don't need to look up the rtas event token once per
cpu per second.  This avoids some misc device-tree lookups
and string ops and so provides some minor performance
improvement.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>

----
Revised commit-log message.

 arch/powerpc/platforms/pseries/rtasd.c |   15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:52 +10:00
Gabriel C
33567a023e [POWERPC] Typo fixes interrrupt -> interrupt
This fixes some interrrupt -> interrupt typos.

Signed-off-by: Gabriel Craciunescu <nix.or.die@googlemail.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:51 +10:00
David Gibson
0d279d4761 [POWERPC] Fixes to allow use of Ebony's flash chips through physmap_of
This patch contains a handful of small fixes to allow the Ebony's
flash to be exposed as MTD devices via the physmap_of driver.
Specifically it:
	- Makes a small addition to the device tree and zImage wrapper
to record the correct address for the flash in the device tree based
on the board switches as reported via an FPGA register.
	- Prohibits building the old hard-coded "Ebony" flash map on
arch/powerpc kernels, in favour of using physmap_of's device tree
based approach.
	- Enables MTD and physmap_of in the Ebony defconfig.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:51 +10:00
Jesper Juhl
9420dc65ff [POWERPC] Clean out a bunch of duplicate includes
This removes several duplicate includes from arch/powerpc/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:51 +10:00
Jon Loeliger
2a4a9fbf26 [POWERPC] embedded6xx: Remove unnecessary loops_per_jiffy initialization code
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:51 +10:00
Jon Loeliger
c3ca32fdb8 [POWERPC] 8xx: Remove unnecessary loops_per_jiffy initialization code
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Vitaly Bordug <vitb@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:51 +10:00
Jon Loeliger
7888fbf7bb [POWERPC] 52xx: Remove unnecessary loops_per_jiffy initialization code
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:50 +10:00
Linas Vepstas
0b9369f493 [POWERPC] EEH: Dump PCI bridge status on event
Gather bridge-specific data on EEH events.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
----
 arch/powerpc/platforms/pseries/eeh.c |   27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:50 +10:00
Linas Vepstas
093eda3ce5 [POWERPC] EEH: Fix PCI bridge handling bug
The EEH code needs to ignore PCI bridges; sort-of.  It was ignoring
them in the wrong place, and thus failing to set up the
PCI_DN(dn)->pcidev pointer.  Imprudent dereferencing of this pointer
would lead to a crash on cards with bridges.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>

----
 arch/powerpc/platforms/pseries/eeh_cache.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:50 +10:00
Linas Vepstas
12588da7cb [POWERPC] EEH: Tweak printk message
Print return code to print message.  Also fix whitespace.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>

----
 arch/powerpc/platforms/pseries/eeh.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:50 +10:00
Ishizaki Kou
a4ebd01747 [POWERPC] Init markings for celleb
There are some variables and functions that we should place in init
section.  And this patch changes some '__devinit' to '__init', because
the device is platform device and not hot-pluggable.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:50 +10:00
Ishizaki Kou
b090b3388b [POWERPC] Fix celleb sio section warning
Fix following warning:
WARNING: vmlinux.o(.text+0x45fd4): Section mismatch: reference to .init.text:.early_serial_txx9_setup (between '.txx9_serial_init' and '.txx9_serial_config')

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:50 +10:00
Ishizaki Kou
e5b9187b16 [POWERPC] Fix celleb pci section warnings
Fix following warnings:
WARNING: vmlinux.o(.text+0x44ad0): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config')
WARNING: vmlinux.o(.text+0x44dd8): Section mismatch: reference to .init.text:.free_bootmem (between '.celleb_setup_phb' and '.celleb_fake_pci_write_config')

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 11:01:50 +10:00
Ilpo Järvinen
2b02d13996 [POWERPC] Fix invalid semicolon after if statement
A similar fix to netfilter from Eric Dumazet inspired me to
look around a bit by using some grep/sed stuff as looking for
this kind of bugs seemed easy to automate.  This is one of them
I found where it looks like this semicolon is not valid.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17 10:48:52 +10:00
Geert Uytterhoeven
2de69124e8 [POWERPC] ps3: Fix no storage devices found
Fix probing of PS3 storage devices: in the success case, we should set
`error' to zero, not `result'.

Without this patch no storage devices are found.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-15 15:12:50 +10:00
Roland McGrath
55a910a81d [POWERPC] Fix for assembler -g
ppc64 does the unusual thing of using #include on a compiler-generated
assembly file (lparmap.s) from an assembly source file (head_64.S).
This runs afoul of my recent patch to pass -gdwarf2 to the assembler
under CONFIG_DEBUG_INFO.  This patch avoids the problem by disabling
DWARF generation (-g0) when producing lparmap.s.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-15 15:12:50 +10:00
David Gibson
aa1cf632bd [POWERPC] Fix small race in 44x tlbie function
The 440 family of processors don't have a tlbie instruction.  So, we
implement TLB invalidates by explicitly searching the TLB with tlbsx.,
then clobbering the relevant entry, if any.  Unfortunately the PID for
the search needs to be stored in the MMUCR register, which is also
used by the TLB miss handler.  Interrupts were enabled in _tlbie(), so
an interrupt between loading the MMUCR and the tlbsx could cause
incorrect search results, and thus a failure to invalide TLB entries
which needed to be invalidated.

This fixes the problem in both arch/ppc and arch/powerpc by inhibiting
interrupts (even critical and debug interrupts) across the relevant
instructions.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-15 15:12:50 +10:00
Becky Bruce
fa6b769a8e [POWERPC] Remove unused code causing a compile warning
AFAICT, nobody is using ft_ordered(), and it causes a build warning
to be generated.  This patch cleans that up by removing the function
and the commented-out code that calls it.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-15 15:12:50 +10:00
Jeremy Kerr
ad941fe4b6 [POWERPC] cell: Fix errno for modular spufs_create with invalid neighbour
At present, spu_create with an invalid neighbo(u)r will return -ENOSYS,
not -EBADF, but only when spufs.o is built as a module.

This change adds the appropriate errno, making the behaviour the same
as the built-in case.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-15 15:12:44 +10:00
Benjamin Herrenschmidt
d1f5a77f2c [POWERPC] Fix size check for hugetlbfs
My "slices" address space management code that was added in the 2.6.22
implementation of get_unmapped_area() doesn't properly check that the
size is a multiple of the requested page size.  This allows userland to
create VMAs that aren't a multiple of the huge page size with hugetlbfs
(since hugetlbfs entirely relies on get_unmapped_area() to do that
checking) which leads to a kernel BUG() when such areas are torn down.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-10 21:04:42 +10:00
Benjamin Herrenschmidt
8f2ea1fd3f [POWERPC] Fix initialization and usage of dma_mask
powerpc has a couple of bugs in the usage of dma_masks that tend to
break when drivers explicitly try to set a 32-bit mask for example.

First, the code that generates the pci devices from the OF device-tree
doesn't initialize the mask properly, then our implementation of
set_dma_mask() was trying to validate the -previous- mask value, not the
one passed in as an argument.

This fixes these problems.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-10 21:04:42 +10:00
Stephen Rothwell
939e60f680 [POWERPC] Fix more section mismatches in head_64.S
WARNING: vmlinux.o(.text+0x8174): Section mismatch: reference to .init.text:.prom_init (between '.__boot_from_prom' and '.__after_prom_start')
WARNING: vmlinux.o(.text+0x8498): Section mismatch: reference to .init.text:.early_setup (between '.start_here_multiplatform' and '.start_here_common')
WARNING: vmlinux.o(.text+0x8514): Section mismatch: reference to .init.text:.setup_system (between '.start_here_common' and 'system_call_common')
WARNING: vmlinux.o(.text+0x8530): Section mismatch: reference to .init.text:.start_kernel (between '.start_here_common' and 'system_call_common')

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-10 21:04:41 +10:00
Kim Phillips
3c5ede8cc6 [POWERPC] Revert "[POWERPC] Add 'mdio' to bus scan id list for platforms with QE UEC"
This reverts commit 3baee95595.

That commit was a mistake from the start; I added mdio type to the
bus scan list early on in my ucc_geth migrate to phylib development,
which is just pure wrong (the ucc_geth_mii driver creates the mii
bus and the PHY layer handles PHY enumeration without translation).

This follows on from commit 77926826f3:

 Revert "[POWERPC] Don't complain if size-cells == 0 in prom_parse()"

which was basically trying to hide a symptom of the original mistake
this revert fixes.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-10 21:04:22 +10:00
geoffrey.levand@am.sony.com
bd948b0377 [POWERPC] PS3: Update ps3_defconfig
Update ps3_defconfig.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-10 21:04:22 +10:00
Geoff Levand
332a7b3e93 [POWERPC] PS3: Remove text saying PS3 support is incomplete
Remove the Kconfig message that indicates the PS3 platform support is
incomplete.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-10 21:04:22 +10:00
Geert Uytterhoeven
edd2a9d185 [POWERPC] PS3: Fix storage probe logic
Fix the PS3 storage probe logic to properly find device regions on cold
startup.

 o Change the storage probe event mask from notify_device_ready
   to notify_region_update.
 o Improve the storage probe error handling.
 o Change ps3_storage_wait_for_device() to use a temporary variable to hold
   the buffer address.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-10 21:04:21 +10:00
Andre Detsch
f5996449e3 [POWERPC] cell: Move SPU affinity init to spu_management_of_ops
This patch moves affinity initialization code from spu_base.c to a
new spu_management_of_ops function (init_affinity), which is empty
in the case of PS3. This fixes a linking problem that was happening
when compiling for PS3.
Also, some small code style changes were made.

Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-10 21:04:21 +10:00
Paul Mackerras
edd0622bd2 [POWERPC] Fix potential duplicate entry in SLB shadow buffer
We were getting a duplicate entry in the SLB shadow buffer in
slb_flush_and_rebolt() if the kernel stack was in the same segment
as PAGE_OFFSET, which on POWER6 causes the hypervisor to terminate
the partition with an error.  This fixes it.

Also we were not creating an SLB entry (or an SLB shadow buffer
entry) for the kernel stack on secondary CPUs when starting the
CPU.  This isn't a major problem, since an appropriate entry will
be created on demand, but this fixes that also for consistency.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-10 21:04:07 +10:00
Michael Neuling
67439b76f2 [POWERPC] Fixes for the SLB shadow buffer code
On a machine with hardware 64kB pages and a kernel configured for a
64kB base page size, we need to change the vmalloc segment from 64kB
pages to 4kB pages if some driver creates a non-cacheable mapping in
the vmalloc area.  However, we never updated with SLB shadow buffer.
This fixes it.  Thanks to paulus for finding this.

Also added some write barriers to ensure the shadow buffer contents
are always consistent.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-03 19:36:01 +10:00
Segher Boessenkool
5628244059 [POWERPC] Fix a compile warning in powermac/feature.c
...by using the pci_get API instead of the deprecated old stuff.

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-03 19:36:01 +10:00
Segher Boessenkool
3a77d291be [POWERPC] Fix a compile warning in pci_32.c
__must_check, so do so.

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-03 19:36:01 +10:00
Michael Ellerman
b9c3fdb0f0 [POWERPC] Fix parse_drconf_memory() for 64-bit start addresses
Some new machines use the "ibm,dynamic-reconfiguration-memory" property
to provide memory layout information, rather than via memory nodes.

There is a bug in the code to parse this property for start addresses
over 4GB; we store the start address in an unsigned int, which means
we throw away the high bits and add apparently duplicate regions.
This results in a BUG() in free_bootmem_core().  This fixes it by
using an unsigned long instead.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-03 19:36:00 +10:00
Kevin Corry
17aa3a82aa [POWERPC] Fix num_cpus calculation in smp_call_function_map()
In smp_call_function_map(), num_cpus is set to the number of online
CPUs minus one.  However, if the CPU mask does not include all CPUs
(except the one we're running on), the routine will hang in the first
while() loop until the 8 second timeout occurs.

The num_cpus should be set to the number of CPUs specified in the mask
passed into the routine, after we've made any modifications to the
mask.  With this change, we can also get rid of the call to
cpus_empty() and avoid adding another pass through the bitmask.

Signed-off-by: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Carl Love <carll@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-03 19:36:00 +10:00
Stephen Rothwell
cba684f56d [POWERPC] ps3: Fix section mismatch in ps3/setup.c
WARNING: vmlinux.o(.text+0x605d4): Section mismatch: reference to
.init.text:.__alloc_bootmem (between '.prealloc' and '.ps3_power_save')

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-03 19:36:00 +10:00
Andre Detsch
683e3ab2b5 [POWERPC] spufs: Fix affinity after introduction of node_allowed() calls
This patch fixes affinity reference point placement, which was not being
done in some situations, after the introduction of node_allowed() calls.

The previously used parameter, 'ctx', is just the iterator of the
previous list_for_each_entry_reverse loop, and its value might be
invalid at the end of the loop. Also, the right context to seek
for information when defining the reference ctx location
_is_ the reference ctx.

Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-03 19:18:10 +10:00
Paul Mackerras
430404ed9c [POWERPC] Fix special PTE code for secondary hash bucket
The code for mapping special 4k pages on kernels using a 64kB base
page size was missing the code for doing the RPN (real page number)
manipulation when inserting the hardware PTE in the secondary hash
bucket.  It needs the same code as has already been added to the
code that inserts the HPTE in the primary hash bucket.  This adds it.

Spotted by Ben Herrenschmidt.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-03 19:16:11 +10:00
Linus Torvalds
2f63251ed0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: (28 commits)
  [WATCHDOG] Fix pcwd_init_module crash
  [WATCHDOG] ICH9 support for iTCO_wdt
  [WATCHDOG] 631xESB/632xESB support for iTCO_wdt - add all LPC bridges
  [WATCHDOG] 631xESB/632xESB support for iTCO_wdt
  [WATCHDOG] omap_wdt.c - default error for IOCTL is -ENOTTY
  [WATCHDOG] Return value of nonseekable_open
  [WATCHDOG] mv64x60_wdt: Rework the timeout register manipulation
  [WATCHDOG] mv64x60_wdt: disable watchdog timer when driver is probed
  [WATCHDOG] mv64x60_wdt: Support the WDIOF_MAGICCLOSE feature
  [WATCHDOG] mv64x60_wdt: Add a module parameter to change nowayout setting
  [WATCHDOG] mv64x60_wdt: Add WDIOC_SETOPTIONS ioctl support
  [WATCHDOG] mv64x60_wdt: Support for WDIOC_SETTIMEOUT ioctl
  [WATCHDOG] mv64x60_wdt: Fix WDIOC_GETTIMEOUT return value
  [WATCHDOG] mv64x60_wdt: Check return value of nonseekable_open
  [WATCHDOG] mv64x60_wdt: Add arch/powerpc platform support
  [WATCHDOG] mv64x60_wdt: Get register address from platform data
  [WATCHDOG] mv64x60_wdt: set up platform_device in platform code
  [WATCHDOG] ensure mouse and keyboard ignored in w83627hf_wdt
  [WATCHDOG] s3c2410_wdt: fixup after arch include moves
  [WATCHDOG] git-watchdog-typo
  ...
2007-07-31 20:43:52 -07:00
Stephane Eranian
a583f1b542 remove unused TIF_NOTIFY_RESUME flag
Remove unused TIF_NOTIFY_RESUME flag for all processor architectures.  The
flag was not used excecpt on IA-64 where the patch replaces it with
TIF_PERFMON_WORK.

Signed-off-by: stephane eranian <eranian@hpl.hp.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:38 -07:00
Alexey Dobriyan
4e950f6f01 Remove fs.h from mm.h
Remove fs.h from mm.h. For this,
 1) Uninline vma_wants_writenotify(). It's pretty huge anyway.
 2) Add back fs.h or less bloated headers (err.h) to files that need it.

As result, on x86_64 allyesconfig, fs.h dependencies cut down from 3929 files
rebuilt down to 3444 (-12.3%).

Cross-compile tested without regressions on my two usual configs and (sigh):

alpha              arm-mx1ads        mips-bigsur          powerpc-ebony
alpha-allnoconfig  arm-neponset      mips-capcella        powerpc-g5
alpha-defconfig    arm-netwinder     mips-cobalt          powerpc-holly
alpha-up           arm-netx          mips-db1000          powerpc-iseries
arm                arm-ns9xxx        mips-db1100          powerpc-linkstation
arm-assabet        arm-omap_h2_1610  mips-db1200          powerpc-lite5200
arm-at91rm9200dk   arm-onearm        mips-db1500          powerpc-maple
arm-at91rm9200ek   arm-picotux200    mips-db1550          powerpc-mpc7448_hpc2
arm-at91sam9260ek  arm-pleb          mips-ddb5477         powerpc-mpc8272_ads
arm-at91sam9261ek  arm-pnx4008       mips-decstation      powerpc-mpc8313_rdb
arm-at91sam9263ek  arm-pxa255-idp    mips-e55             powerpc-mpc832x_mds
arm-at91sam9rlek   arm-realview      mips-emma2rh         powerpc-mpc832x_rdb
arm-ateb9200       arm-realview-smp  mips-excite          powerpc-mpc834x_itx
arm-badge4         arm-rpc           mips-fulong          powerpc-mpc834x_itxgp
arm-carmeva        arm-s3c2410       mips-ip22            powerpc-mpc834x_mds
arm-cerfcube       arm-shannon       mips-ip27            powerpc-mpc836x_mds
arm-clps7500       arm-shark         mips-ip32            powerpc-mpc8540_ads
arm-collie         arm-simpad        mips-jazz            powerpc-mpc8544_ds
arm-corgi          arm-spitz         mips-jmr3927         powerpc-mpc8560_ads
arm-csb337         arm-trizeps4      mips-malta           powerpc-mpc8568mds
arm-csb637         arm-versatile     mips-mipssim         powerpc-mpc85xx_cds
arm-ebsa110        i386              mips-mpc30x          powerpc-mpc8641_hpcn
arm-edb7211        i386-allnoconfig  mips-msp71xx         powerpc-mpc866_ads
arm-em_x270        i386-defconfig    mips-ocelot          powerpc-mpc885_ads
arm-ep93xx         i386-up           mips-pb1100          powerpc-pasemi
arm-footbridge     ia64              mips-pb1500          powerpc-pmac32
arm-fortunet       ia64-allnoconfig  mips-pb1550          powerpc-ppc64
arm-h3600          ia64-bigsur       mips-pnx8550-jbs     powerpc-prpmc2800
arm-h7201          ia64-defconfig    mips-pnx8550-stb810  powerpc-ps3
arm-h7202          ia64-gensparse    mips-qemu            powerpc-pseries
arm-hackkit        ia64-sim          mips-rbhma4200       powerpc-up
arm-integrator     ia64-sn2          mips-rbhma4500       s390
arm-iop13xx        ia64-tiger        mips-rm200           s390-allnoconfig
arm-iop32x         ia64-up           mips-sb1250-swarm    s390-defconfig
arm-iop33x         ia64-zx1          mips-sead            s390-up
arm-ixp2000        m68k              mips-tb0219          sparc
arm-ixp23xx        m68k-amiga        mips-tb0226          sparc-allnoconfig
arm-ixp4xx         m68k-apollo       mips-tb0287          sparc-defconfig
arm-jornada720     m68k-atari        mips-workpad         sparc-up
arm-kafa           m68k-bvme6000     mips-wrppmc          sparc64
arm-kb9202         m68k-hp300        mips-yosemite        sparc64-allnoconfig
arm-ks8695         m68k-mac          parisc               sparc64-defconfig
arm-lart           m68k-mvme147      parisc-allnoconfig   sparc64-up
arm-lpd270         m68k-mvme16x      parisc-defconfig     um-x86_64
arm-lpd7a400       m68k-q40          parisc-up            x86_64
arm-lpd7a404       m68k-sun3         powerpc              x86_64-allnoconfig
arm-lubbock        m68k-sun3x        powerpc-cell         x86_64-defconfig
arm-lusl7200       mips              powerpc-celleb       x86_64-up
arm-mainstone      mips-atlas        powerpc-chrp32

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-29 17:09:29 -07:00
Rafael J. Wysocki
b0cb1a19d0 Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION
Replace CONFIG_SOFTWARE_SUSPEND with CONFIG_HIBERNATION to avoid
confusion (among other things, with CONFIG_SUSPEND introduced in the
next patch).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-29 16:45:38 -07:00
Paul Mackerras
46b2835771 Merge branch 'fixes-2.6.23' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc into merge 2007-07-26 16:43:24 +10:00
Christoph Hellwig
9d78592ed7 [POWERPC] spusched: Fix initial timeslice calculation
Currently we calculate the first timeslice for every context
incorrectly - alloc_spu_context calls spu_set_timeslice before we set
ctx->prio so we always calculate the longest possible timeslice for the
lowest possible priority.

This patch makes sure to update the schedule-related fields before
calculating the timeslice and also makes sure we update the timeslice for
a non-running context when entering spu_run so a priority change affects
the context as soon as possible.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 16:17:56 +10:00
Masato Noguchi
6f6a6dc0c8 [POWERPC] spufs: Fix incorrect initialization of cbe_spu_info.spus
We currently initialize cbe_spu_info[].spus in both init_spu_base and
spu_sched_init. The initialise in spu_sched_init clears the SPU list,
so we end up with no physical SPUs. Because of this, the spu_run
syscall will block forever.

This change removes the unnecessary initialization in spu_sched_init.

Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 16:17:55 +10:00
Benjamin Herrenschmidt
17cd87c26b [POWERPC] Fix Maple platform ISA bus
The Maple platform has ISA IOs but didn't call the new functions to
actually map those, thus crashing when trying to access the nvram.

This fixes Maple and JS2x using SLOF.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 16:17:49 +10:00
Benjamin Herrenschmidt
50747cb818 [POWERPC] Make pci_iounmap actually unmap things
This patch uses the newly added functions for testing if an address is
an ISA or PCI IO port to properly unmap things in pci_iounmap that
aren't such ports.  Without that, drivers using the iomap API will never
actually unmap resources, which on IBM server machines will prevent
hot-unplug of the corresponding HW adapters.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 16:17:48 +10:00
Benjamin Herrenschmidt
6dfbde2091 [POWERPC] Add function to check if address is an IO port
This adds a function that tells you if a given kernel virtual address
is hitting a PCI or ISA IO port permanent mapping or not. This is to
be used in the next patch to fix iomap APIs to properly unmap things.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 16:17:47 +10:00
Alan Curry
f5d834fc34 [POWERPC] Fix Pegasos keyboard detection
As of 2.6.22 the kernel doesn't recognize the i8042 keyboard/mouse
controller on the PegasosPPC.  This is because of a feature/bug in the
OF device tree: the "device_type" attribute is an empty string instead
of "8042" as the kernel expects.  This adds a secondary detection
which looks for a device whose *name* is "8042" if there is no device
whose *type* is "8042".

Signed-off-by: Alan Curry <pacman@world.std.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 16:17:45 +10:00
Stephen Rothwell
16782a604c [POWERPC] iSeries: Fix section mismatch warning in lpevents
WARNING: vmlinux.o(.text+0x4f568): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.setup_hvlpevent_queue' and '.process_hvlpevents')

setup_hvlpevent_queue is only called from __init code so make it __init
as well.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 16:12:18 +10:00
Stephen Rothwell
c40b91b59d [POWERPC] iSeries: Fix section mismatch warnings
WARNING: vmlinux.o(.text+0x8124): Section mismatch: reference to .init.text:.iSeries_early_setup (between '.__start_initialization_iSeries' and '.__mmu_off')
WARNING: vmlinux.o(.text+0x8128): Section mismatch: reference to .init.text:.early_setup (between '.__start_initialization_iSeries' and '.__mmu_off')

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 16:12:17 +10:00
Guennadi Liakhovetski
f2d32db344 [POWERPC] Fix RTC and device tree on linkstation machines
This fixes the RTC on linkstation ppc machines again, and updates the
device tree: add rtc nodes on i2c, remove bogus 0-size cache-line
declarations, rename interrupt-controller nodes, remove erroneous
interrupt-parent line, accidentally introduced by a recent patch.

Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 16:12:17 +10:00
Guennadi Liakhovetski
d13ae8620d [POWERPC] Add of_register_i2c_devices()
Scan the device tree for i2c devices, check their "compatible" property
against a hard-coded table, and, if found, register with i2c boardinfo.
This provides the infrastructure needed to find i2c devices in the
device tree and register them with the i2c subsystem.

This and the following commit let the linkstation work with the new i2c
API and thus fix a regression.

Signed-off-by: G. Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 16:12:17 +10:00
Manish Ahuja
56d6d1a73d [POWERPC] Fix loop with unsigned long counter variable
This fixes a possible infinite loop when the unsigned long counter "i"
is used in lmb_add_region() in the following for loop:

for (i = rgn->cnt-1; i >= 0; i--)

by making the loop counter "i" be signed.

Signed-off-by: Manish Ahuja <ahuja@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 16:12:17 +10:00
Kumar Gala
141707892e [POWERPC] Fix register labels on show_regs() message for 4xx/Book-E
In a show_regs()  message The DEAR and ESR were reported as
DAR and DSISR which only exist on classic parts.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-26 00:46:15 -05:00
Kumar Gala
d1c813123f [POWERPC] Only allow building of BootX text support on PPC_MULTIPLATFORM
BootX text code is only supported on systems with real OF at this point
which is PPC_OF && PPC_MULTIPLATFORM.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-26 00:43:36 -05:00
Roy Zang
10ce8c69d0 [POWERPC] Fix the ability to reset on MPC8544 DS and MPC8568 MDS boards
Add global-utilities node with has-rstcr on MPC8544 DS and MPC8568 MDS
boards so they are able to reset properly.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-26 00:19:57 -05:00
Roy Zang
006af9e229 [POWERPC] Fix mpc7448hpc2 tsi108 device_type bug
Fix mpc7448hpc2 tsi108 device_type bug.
Wrong device type will break the board startup.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-26 00:17:02 -05:00
Kumar Gala
282045b450 [POWREPC] Fixup a number of modpost warnings on ppc32
Fixed the following warnings:

WARNING: vmlinux.o(.text+0x2934): Section mismatch: reference to .init.text:__alloc_bootmem (between 'irq_alloc_host' and 'irq_set_default_host')
WARNING: vmlinux.o(.text+0xb2aa): Section mismatch: reference to .init.data:boot_command_line (between 'register_early_udbg_console' and 'udbg_printf')
WARNING: vmlinux.o(.text+0xb2b2): Section mismatch: reference to .init.data:boot_command_line (between 'register_early_udbg_console' and 'udbg_printf')
WARNING: vmlinux.o(.text+0xe354): Section mismatch: reference to .init.text:__alloc_bootmem (between 'pcibios_alloc_controller' and 'pci_domain_nr')
WARNING: vmlinux.o(.text+0x12768): Section mismatch: reference to .init.text:update_bridge_resource (between 'quirk_fsl_pcie_transparent' and 'indirect_read_config')
WARNING: vmlinux.o(.text+0x127a8): Section mismatch: reference to .init.text:update_bridge_resource (between 'quirk_fsl_pcie_transparent' and 'indirect_read_config')
WARNING: vmlinux.o(.text+0x17566c): Section mismatch: reference to .init.text:pcibios_fixup_bus (between 'pci_scan_child_bus' and 'pci_scan_bus_parented')

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-26 00:16:21 -05:00
Kumar Gala
9a9bcf4e00 [POWERPC] Fix ethernet PHY support on MPC8544 DS
The MPC8544 dts needed to set the new phy-connection-type to rgmii-id
for the Vitesse PHY on the board to work properly.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-26 00:07:36 -05:00
Kumar Gala
2052d6d25d [POWERPC] Don't try to allocate resources for a Freescale POWERPC PHB
The Freescale PCI PHBs actual report back values in the BAR registers
this causes issues in that we try to allocate resources for them
and will get error messages like the following on MPC8544 DS:

PCI: Failed to allocate mem resource #1:80000000@0 for 0000:00:00.0

To address this if we are class PCI_CLASS_PROCESSOR_POWERPC, a normal
header type, and the PHB we clear out all the resources.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-25 23:02:06 -05:00
Paul Mackerras
77926826f3 Revert "[POWERPC] Don't complain if size-cells == 0 in prom_parse()"
This reverts commit fd6e9d3945.

Having #size-cells == 0 in a node indicates that things under the
node aren't directly accessible, and therefore we shouldn't try to
translate addresses for devices under the node into CPU physical
addresses.

Some drivers, such as the nvram driver for powermacs, rely on
of_address_to_resource failing if they are called for a node
representing a device whose resources aren't directly accessible
by the CPU.  These drivers were broken by commit fd6e9d39,
resulting in the "Lombard" powerbook hanging early in the boot
process.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26 13:44:36 +10:00
Kumar Gala
7659c038d3 [POWERPC] Fix PCI indirect for big-endian cfg_addr
We didn't actually propogate the flag we pass into setup_indirect_pci()
to set indirect_type and thus were getting the wrong endianness if
PPC_INDIRECT_TYPE_BIG_ENDIAN was set.

Also, we need to or in additional flags rather than just doing a
direct assignment.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-25 00:29:53 -05:00
Linus Torvalds
0de085bb47 Merge branch 'for_paulus' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc
* 'for_paulus' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc: (25 commits)
  [POWERPC] 85xx: Added needed MPC85xx PCI device IDs
  [POWERPC] Add Freescale PCI VENDOR ID and 8641 device IDs
  [POWERPC] 85xxCDS: MPC8548 DTS cleanup.
  [POWERPC] 85xxCDS: Misc 8548 PCI Corrections.
  [POWERPC] 85xxCDS: Delay 8259 cascade hookup.
  [POWERPC] 85xxCDS: Make sure restart resets the PCI bus.
  [POWERPC] 85xxCDS: Allow 8259 cascade to share an MPIC interrupt line.
  [POWERPC] FSL: Add support for PCI-X controllers
  [POWERPC] Make sure virtual P2P bridge registers are setup on PCIe PHB
  [POWERPC] Provide ability to setup P2P bridge registers from struct resource
  [POWERPC] Add basic PCI/PCI Express support for 8544DS board
  [POWERPC] Make endianess of cfg_addr for indirect pci ops runtime
  [POWERPC] Removed setup_indirect_pci_nomap
  [POWERPC] 85xx: Add quirk to ignore bogus FPGA on CDS
  [POWERPC] 85xx: Added 8568 PCIe support
  [POWERPC] Fixup resources on pci_bus for PCIe PHB when no device is connected
  [POWERPC] Add basic PCI node for mpc8568mds board
  [POWERPC] Use Freescale pci/pcie common code for 85xx boards
  [POWERPC] Update PCI nodes in the 83xx/85xx boards device tree
  [POWERPC] Add 8548 CDS PCI express controller node and PCI-X device node
  ...
2007-07-24 20:26:25 -07:00
Dale Farnsworth
7e07a15913 [WATCHDOG] mv64x60_wdt: Add arch/powerpc platform support
Add support for arch/powerpc, specifically for the prpmc2800 platform.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2007-07-24 21:16:02 +00:00
Christoph Hellwig
b2c863bd2d spusched: fix mismerge in spufs.h
spufs.h now has two enums for the sched_flags leading to identical
values for SPU_SCHED_WAS_ACTIVE and SPU_SCHED_NOTIFY_ACTIVE.  Merge
them into a single enum as they were in the IBM development tree.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-24 12:24:58 -07:00
Kumar Gala
e58712111f [POWERPC] 85xx: Added needed MPC85xx PCI device IDs
Added the MPC85xx PCI device IDs that we need for the quirks we have.

Also, fixed the MPC8567E, MPC8567 device IDs which had the wrong value.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-24 10:32:05 -05:00
Jon Loeliger
c26c372cdb [POWERPC] Add Freescale PCI VENDOR ID and 8641 device IDs
Also add 8641/8641D device IDs as well.
All of which already exist or have been submitted to
The Linux PCI ID Repository at:
    http://pci-ids.ucw.cz/

CC-to: pci-ids@ucw.cz
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-24 10:31:58 -05:00
Randy Vinson
6af0125742 [POWERPC] 85xxCDS: MPC8548 DTS cleanup.
Added the P2P bridge present on the Arcadia base board and moved the VIA
Southbridge behind the bridge to reflect its actual position in the bus
organization. Added the RTC that's in the VIA Southbridge and expanded
the ranges array for the SOC node to allow proper address translation of
the RTC registers.

Signed-off-by: Randy Vinson <rvinson@mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-24 10:31:55 -05:00
Randy Vinson
8d7bc8f9d1 [POWERPC] 85xxCDS: Misc 8548 PCI Corrections.
Setting the host bridge @8000 as primary. Also fixing a bug in
setting the USB interrupt numbers.

Signed-off-by: Randy Vinson <rvinson@mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-24 10:31:49 -05:00
Randy Vinson
bca03c6bdd [POWERPC] 85xxCDS: Delay 8259 cascade hookup.
The interrupts of an E100 card inserted in PCI slot 4 may be on at bootup.
The resulting interrupt flood interacts with the 8259 cascade handler and
prevents proper boot up. There is a quirk for the E100 that will disable
the E100's interrupts but to use it, the 8259 cascade hookup must be
delayed until after the quirk has run. This patch delays the 8259 cascade
hookup by registering a device_initcall() which runs after the PCI quirk
for the E100.

Signed-off-by: Randy Vinson <rvinson@mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-24 10:31:34 -05:00
Randy Vinson
637e9e13a1 [POWERPC] 85xxCDS: Make sure restart resets the PCI bus.
The current 85xxCDS restart code fails to reset the PCI bus which can
lead to odd behavior after the restart. This patch uses the VIA Super
Southbridge to perform a PCI reset which will reset the entire system.
NOTE: Since the VIA chip is behind a PCI-to-PCI bridge which can be
disabled with a switch setting, it may not be possible to perform the
PCI bus reset. In this case, the code defaults to the previous restart
mechanism.

Signed-off-by: Randy Vinson <rvinson@mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:35:12 -05:00
Randy Vinson
3620fc1da2 [POWERPC] 85xxCDS: Allow 8259 cascade to share an MPIC interrupt line.
The Freescale MPC8555CDS and MPC8548CDS reference hardware has a legacy
8259 interrupt controller pair contained within a VIA VT82C686B Southbridge
on the main carrier board. The processor complex plugs into the carrier
card using a PCI slot which limits the available interrupts to the
INTA-INTD PCI interrupts. The output of the 8259 cascade pair is routed
through a gate array and connected to the PCI INTA interrupt line.
The normal interrupt chaining hook (set_irq_chained_handler) does
not allow sharing of the chained interrupt which prevents the
use of PCI INTA by PCI devices. This patch allows the 8259 cascade
pair to share their interrupt line with PCI devices.

NOTE: The addition of the .end routine for the MPIC is not strictly
necessary for this patch. It's there so this code will run from within
the threaded interrupt context used by the Real Time patch.

Signed-off-by: Randy Vinson <rvinson@mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:34:40 -05:00
Kumar Gala
eb12af4333 [POWERPC] FSL: Add support for PCI-X controllers
Some set of 85xx platforms have PCI-X controllers.  The old arch/ppc
code setup these controllers and we haven't moved it over to arch/powerpc.

We use the PCI-X Capabilties to know if we are in PCI-X mode instead
of the Global Utilities PORDEVSR.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:30:14 -05:00
Kumar Gala
7391ff35b2 [POWERPC] Make sure virtual P2P bridge registers are setup on PCIe PHB
For the Freescale PCIe PHBs Not all firmwares setup the virtual P2P
bridge registers properly.  Make sure they get setup based on what
the struct pci_controller got from the device tree.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:30:11 -05:00
Kumar Gala
f64fddbeac [POWERPC] Provide ability to setup P2P bridge registers from struct resource
We need the ability to set P2P bridge registers to properly setup the virtual
P2P bridges that exist in PCIe controllers for some of the embedded setups.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:30:08 -05:00
Roy Zang
f16dab981a [POWERPC] Add basic PCI/PCI Express support for 8544DS board
Add basic support for the PCIe PHB and enable the ULI bridge.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:30:02 -05:00
Kumar Gala
2e56ff206b [POWERPC] Make endianess of cfg_addr for indirect pci ops runtime
Make it so we do a runtime check to know if we need to write cfg_addr
as big or little endian.  This is needed if we want to allow 86xx support
to co-exist in the same kernel as other 6xx PPCs.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 22:29:09 -05:00
Kumar Gala
d5269966e5 [POWERPC] Removed setup_indirect_pci_nomap
We don't use setup_indirect_pci_nomap in arch/powerpc and it appears
the users that needed it from arch/ppc are now using setup_indirect_pci.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Kumar Gala
4e7982115e [POWERPC] 85xx: Add quirk to ignore bogus FPGA on CDS
The newer Arcadia boards for CDS have an FPGA that shows up on PCI
however isn't a real PCI device.  Add a quirk to just ignore the
FPGA.

This is based on the following patch from Andy & York:

http://ozlabs.org/pipermail/linuxppc-dev/2007-February/032042.html

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Kumar Gala
aa3c112146 [POWERPC] 85xx: Added 8568 PCIe support
Added the PCIe device node to the 8568 dts and the needed quirk entries.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Kumar Gala
6c0a11c118 [POWERPC] Fixup resources on pci_bus for PCIe PHB when no device is connected
On the 85xx/86xx PCIe controllers if there is no device connected to the
PHB we will still allocate a pci_bus for downstream bus of the virtual
P2P bridge. However the resources allocated to the downstream bus are not
correct and so we just mimic the resources from the upstream pci_bus.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Roy Zang
66afe8780f [POWERPC] Add basic PCI node for mpc8568mds board
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Ebony Zhu <ebony.zhu@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Roy Zang
3f6c5dae27 [POWERPC] Use Freescale pci/pcie common code for 85xx boards
Switch the 85xx platform over to using the FSL generic PCI code.  This
gets ups PCIe support in addition to base PCI support.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Roy Zang
344ffde71e [POWERPC] Update PCI nodes in the 83xx/85xx boards device tree
Updated the 83xx & 85xx device tree PCI related compartible property.

Used the following compatible properties:
	PCI     "fsl,mpc8349-pci"
	PCI     "fsl,mpc8540-pci"
	PCI-X:  "fsl,mpc8540-pcix"
	PCIe:   "fsl,mpc8548-pcie"

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:08 -05:00
Roy Zang
02edff59c9 [POWERPC] Add 8548 CDS PCI express controller node and PCI-X device node
Add 8548 CDS PCI express controller node and PCI-X device node. The current
dts file is suitable for 8548 Rev 2.0 board with Arcadia 3.1.

This kind of board combination is the most popular.

Used the following compatible properties:
	PCI	"fsl,mpc8540-pci"
	PCI-X:	"fsl,mpc8540-pcix"
	PCIe:	"fsl,mpc8548-pcie"

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Kumar Gala
957ecffc25 [POWERPC] FSL: Cleanup how we detect if we are a PCIe controller
Use the PCI capabilities to determine if we are PCIe PHB.  Also use
PPC_INDIRECT_TYPE_NO_PCIE_LINK since the Freescale PCIe controllers
will lock the system if they don't have link and you try to do a config
access to anything but the PHB.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Kumar Gala
62c66c8e55 [POWERPC] Added indirect quirk to handle PCIe PHB that have issue w/no link
Added PPC_INDIRECT_TYPE_NO_PCIE_LINK flag to the indirect pci handling
code to ensure that we don't talk to any device other than the PHB
if we don't have PCIe link.  Some controllers will lockup if they try
to do a config cycle to any device on the bus except the PHB.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Kumar Gala
38805e5f09 [POWERPC] Add the ability to find PCI capabilities early on
Added early_find_capability that wraps pci_bus_find_capability and uses
fake_pci_bus() to allow us to call it before we've fully setup the
pci_controller.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Zang Roy-r61911
9ac4dd301e [POWERPC] Rewrite Freescale PCI/PCIe support for 8{3,5,6}xx
Rewrite the Freescale PCI code to support PCI on 83xx/85xx/86xx and
PCIe on 85xx/86xx.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Roy Zang
55c44991e2 [POWERPC] Create common fsl pci/e files based on 86xx platforms
Move
arch/powerpc/platforms/86xx/pci.c -> arch/powerpc/sysdev/fsl_pci.c
arch/powerpc/sysdev/fsl_pcie.h -> arch/powerpc/sysdev/fsl_pci.h
as the base to unify 83xx/85xx/86xx pci and pcie.

Add CONFIG_FSL_PCI to build fsl_pci.c for Freescale pci and pcie option.
The code still works for 86xx platforms.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-07-23 10:27:07 -05:00
Linus Torvalds
dc79747019 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Clean up duplicate includes in drivers/macintosh/
  [POWERPC] Quiet section mismatch warning on pcibios_setup
  [POWERPC] init and exit markings for hvc_iseries
  [POWERPC] Quiet section mismatch in hvc_rtas.c
  [POWERPC] Constify of_platform_driver match_table
  [POWERPC] hvcs: Make some things static and const
  [POWERPC] Constify of_platform_driver name
  [POWERPC] MPIC protected sources
  [POWERPC] of_detach_node()'s device node argument cannot be const
  [POWERPC] Fix ARCH=ppc builds
  [POWERPC] mv64x60: Use mutex instead of semaphore
  [POWERPC] Allow smp_call_function_single() to current cpu
  [POWERPC] Allow exec faults on readable areas on classic 32-bit PowerPC
  [POWERPC] Fix future firmware feature fixups function failure
  [POWERPC] fix showing xmon help
  [POWERPC] Make xmon_write accept a const buffer
  [POWERPC] Fix misspelled "CONFIG_CHECK_CACHE_COHERENCY" Kconfig option.
  [POWERPC] cell: CONFIG_SPE_BASE is a typo
2007-07-22 11:17:35 -07:00
Al Viro
5fa63fccc5 Fix ppc64 mismerge
Fix a mismerge in commit 8b6f50ef1d:
"spufs: make signal-notification files readonly for NOSCHED contexts",
where structs got duplicated.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22 10:41:27 -07:00