openwrt/staging/blogic.git
17 years ago[POWERPC] Add a check for keyboard/mouse device nodes in check_legacy_ioport()
Wade Farnsworth [Wed, 20 Jun 2007 00:15:10 +0000 (10:15 +1000)]
[POWERPC] Add a check for keyboard/mouse device nodes in check_legacy_ioport()

The device tree for the MPC8641 HPCN does not implement the device type
property for I8042 nodes.

In addition to checking the I8042 node's device type, also match the
keyboard and/or mouse nodes' compatible property.

Signed-off-by: Wade Farnsworth <wfarnsworth@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Add a warning to help trackdown device_node refcounting bugs
Michael Ellerman [Tue, 19 Jun 2007 06:08:00 +0000 (16:08 +1000)]
[POWERPC] Add a warning to help trackdown device_node refcounting bugs

When the refcount for a device node goes to 0, we call the
destructor - of_node_release(). This should only happen if we've
already detached the node from the device tree.

So add a flag OF_DETACHED which tracks detached-ness, and if we
find ourselves in of_node_release() without it set, issue a
warning and don't free the device_node. To avoid warning
continuously reinitialise the kref to a sane value.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Generalise device_node flag interface
Michael Ellerman [Tue, 19 Jun 2007 06:07:58 +0000 (16:07 +1000)]
[POWERPC] Generalise device_node flag interface

The struct device_node currently has a _flags variable, although
it's only used for one flag - OF_DYNAMIC.  Generalise the flag
accessors so we can use them with other flags in future.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Check for the root node in of_detach_node()
Michael Ellerman [Tue, 19 Jun 2007 06:07:56 +0000 (16:07 +1000)]
[POWERPC] Check for the root node in of_detach_node()

It's not sensible to call of_detach_node() on the root node,
but we should check for it just to be safe.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Add cputable entry for PowerPC 440SPe Rev. B
Roland Dreier [Fri, 15 Jun 2007 19:36:32 +0000 (05:36 +1000)]
[POWERPC] Add cputable entry for PowerPC 440SPe Rev. B

When adding the cputable entry for 440SPe Rev. B, we also need to
adjust the existing entries for 440SP Rev. A and 440SPe Rev. B so that
they look more bits of the PVR.  The 440SPe Rev. B has PVR 53421891,
which would match the current 440SP Rev. A pattern of 53xxx891.  To
distinguish between 440SP and 440SPe, we need to use the first three
digits of the PVR, which are respectively 532 and 534.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Fix drivers/rtc/Kconfig for powerpc
Wade Farnsworth [Wed, 6 Jun 2007 16:57:43 +0000 (02:57 +1000)]
[POWERPC] Fix drivers/rtc/Kconfig for powerpc

The powerpc arch uses CONFIG_PPC instead of CONFIG_POWERPC.  This fixes
drivers/rtc/Kconfig to use the correct config option.

Signed-off-by: Wade Farnsworth <wfarnsworth@mvista.com>
Acked-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] of_serial: add port type checking
Ishizaki Kou [Thu, 31 May 2007 09:33:04 +0000 (19:33 +1000)]
[POWERPC] of_serial: add port type checking

Currently, of_serial driver supports only 8250 compatible ports, but
prepares that others can easily be added.  Yet unregister routine
assumes port is 8250.  This corrects unregister routine to check
port type.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] of_serial: Ignore unknown serial port
Ishizaki Kou [Thu, 31 May 2007 09:30:33 +0000 (19:30 +1000)]
[POWERPC] of_serial: Ignore unknown serial port

Current of_serial driver assumes unknown serial port to be 8250.  But
this behavior may cause fatal problems when the serial port is not
8250.  This corrects probe routine to ignore unknown serial port.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] VIOTAPE: Use designated initializers for fops member structures.
Robert P. J. Day [Wed, 30 May 2007 01:29:06 +0000 (11:29 +1000)]
[POWERPC] VIOTAPE: Use designated initializers for fops member structures.

Replace the old-style member initializers with the newer designated
initializers.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Remove unused do_signal export
Christoph Hellwig [Tue, 29 May 2007 11:49:01 +0000 (21:49 +1000)]
[POWERPC] Remove unused do_signal export

do_signal is never used in modular code (obviously), and no other
architecture exports it either.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Fix viodasd geometry calculations
Stephen Rothwell [Tue, 29 May 2007 06:06:54 +0000 (16:06 +1000)]
[POWERPC] Fix viodasd geometry calculations

Commit a885c8c4316e1c1d2d2c8755da3f3d14f852528d that introduced the
getgeo block device method changed the fallback number of sectors and
introduced a bug into the fallback cylinder number calculation.

Thanks to Rusty Russell for noticing this.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] dts: kill hardcoded phandles
Vitaly Bordug [Mon, 9 Jul 2007 18:37:36 +0000 (11:37 -0700)]
[POWERPC] dts: kill hardcoded phandles

Removed explicit linux,phandle usage.  Using references and labels now in PQ
and PQ2 boards currently supported in arch/powerpc.

Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] 8xx: mpc885ads pcmcia support
Vitaly Bordug [Mon, 9 Jul 2007 18:37:35 +0000 (11:37 -0700)]
[POWERPC] 8xx: mpc885ads pcmcia support

Adds support for PowerQuicc on-chip PCMCIA.  The driver is implemented as
of_device, so only arch/powerpc stuff is capable to use it, which now implies
only mpc885ads reference board.

To cope with the code that should be hooked inside driver, but is really board
specific (like set_voltage), global structure mpc8xx_pcmcia_ops holds
necessary function pointers that are filled in the BSP code.

[akpm@linux-foundation.org: whitespace diddles]
Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Olof Johansson <olof@lixom.net>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] CPM_UART: Use inline function form of eieio
Kumar Gala [Tue, 10 Jul 2007 04:51:06 +0000 (23:51 -0500)]
[POWERPC] CPM_UART: Use inline function form of eieio

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Move inline asm eieio to using eieio inline function
Kumar Gala [Tue, 10 Jul 2007 04:49:09 +0000 (23:49 -0500)]
[POWERPC] Move inline asm eieio to using eieio inline function

Use the eieio function so we can redefine what eieio does rather
than direct inline asm.  This is part code clean up and partially
because not all PPCs have eieio (book-e has mbar that maps to eieio).

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[PPC] Add linux/pagemap.h to arch/ppc/mm/tlb.c
Laurent Pinchart [Mon, 9 Jul 2007 12:58:18 +0000 (14:58 +0200)]
[PPC] Add linux/pagemap.h to arch/ppc/mm/tlb.c

When compiled without swap support, arch/mm/tlb.c complains about missing
function declarations. This patch fixes the warnings.

Signed-off-by: Laurent Pinchart <laurent.pinchart@technotrade.biz>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] 52xx: sparse fixes
Domen Puncer [Mon, 9 Jul 2007 07:52:03 +0000 (09:52 +0200)]
[POWERPC] 52xx: sparse fixes

sparse caught these static functions / __iomem annotations
under arch/powerpc/platform/52xx/

Signed-off-by: Domen Puncer <domen.puncer@telargo.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] 83xx: Add USB support to mpc8349-mitx board port
Grant Likely [Fri, 6 Jul 2007 22:29:09 +0000 (16:29 -0600)]
[POWERPC] 83xx: Add USB support to mpc8349-mitx board port

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] 83xx: USB platform code rework
Li Yang [Tue, 3 Jul 2007 09:43:16 +0000 (17:43 +0800)]
[POWERPC] 83xx: USB platform code rework

Add 831x USB platform setup code and rework 834x USB platform setup code.
Move USB platform code to usb.c for different boards with CPU of the same
series to share the USB initialization code.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Remove redundant pci_read_irq_line() function for 85xx platform
Roy Zang [Fri, 1 Jun 2007 08:05:38 +0000 (16:05 +0800)]
[POWERPC] Remove redundant pci_read_irq_line() function for 85xx platform

Remove redundant pci_read_irq_line() function for 85xx CDS board.
This function has been realized in common ppc pci code.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Merge asm-ppc/mmu_context.h into asm-power/mmu_context.h
Kumar Gala [Tue, 3 Jul 2007 08:22:05 +0000 (03:22 -0500)]
[POWERPC] Merge asm-ppc/mmu_context.h into asm-power/mmu_context.h

Just did a directly merge from asm-ppc into asm-powerpc.  This is the last
header that we directly include from asm-powerpc.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Fix up interrupt senses for MPC85xx boards
Kumar Gala [Tue, 3 Jul 2007 08:05:58 +0000 (03:05 -0500)]
[POWERPC] Fix up interrupt senses for MPC85xx boards

The PHY is active-low on the MPC85xx CDS and the 8560 ADS just had
the wrong sense for the internal PCI and CPM interrupts.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Split out asm-ppc/mmu.h portions for PowerPC 8xx
David Gibson [Fri, 22 Jun 2007 04:58:55 +0000 (14:58 +1000)]
[POWERPC] Split out asm-ppc/mmu.h portions for PowerPC 8xx

arch/powerpc still relies on asm-ppc/mmu.h for some 32-bit MMU types.
This patch is another step towards fixing this.  It takes the portions
of asm-ppc/mmu.h related to 8xx embedded CPUs which are still relevant
in arch/powerpc and puts them in a new asm-powerpc/mmu-8xx.h,
included when appropriate from asm-powerpc/mmu.h.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Split out asm-ppc/mmu.h portions for Freescale Book-E
David Gibson [Fri, 15 Jun 2007 05:33:09 +0000 (15:33 +1000)]
[POWERPC] Split out asm-ppc/mmu.h portions for Freescale Book-E

arch/powerpc still relies on asm-ppc/mmu.h for some 32-bit MMU types.
This patch is another step towards fixing this.  It takes the portions
of asm-ppc/mmu.h related to Freescale Book-E which are still relevant
in arch/powerpc and puts them in a new asm-powerpc/mmu-fsl-booke.h,
included when appropriate from asm-powerpc/mmu.h.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Kill pcibios_enable_resources()
Kumar Gala [Tue, 3 Jul 2007 07:51:24 +0000 (02:51 -0500)]
[POWERPC] Kill pcibios_enable_resources()

pcibios_enable_resources isn't used anywhere and not exported.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Replace use of GET_64BIT(prop, i) with of_read_number().
Jon Loeliger [Mon, 4 Jun 2007 19:28:44 +0000 (14:28 -0500)]
[POWERPC] Replace use of GET_64BIT(prop, i) with of_read_number().

Remove uses of hack GET_64BIT() property macro and use
the more general of_read_number() function from prom.h
as suggested by Milton.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Reworked interrupt numbers for OpenPIC based Freescale chips
Kumar Gala [Tue, 3 Jul 2007 07:35:35 +0000 (02:35 -0500)]
[POWERPC] Reworked interrupt numbers for OpenPIC based Freescale chips

Make the interrupt numbers match the OpenPIC spec intead of the
Freescale docs which distinguish between internal and external interrupts.

Now we can use the interrupt number directly to find the register offset
associated with it.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Fix MAC address entries for 83xx, 85xx, and 86xx device trees
Timur Tabi [Fri, 22 Jun 2007 19:33:15 +0000 (14:33 -0500)]
[POWERPC] Fix MAC address entries for 83xx, 85xx, and 86xx device trees

For the 83xx, 85xx, and 86xx device trees, add a "local-mac-address" property
to every Ethernet node that didn't have one.  Add a comment indicating that
the "address" and/or "mac-address" properties are deprecated in DTS files
and will be removed at a later time.  Change all MAC address properties to
have a zero MAC address value.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] qe_lib: export symbols for QE driver to compile as module
Li Yang [Mon, 28 May 2007 10:48:06 +0000 (18:48 +0800)]
[POWERPC] qe_lib: export symbols for QE driver to compile as module

Export symbols of qe_lib to be used by QE driver.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Selvamuthukumar V <vsmkumar.84@gmail.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] 85xx: Fix 8548CDS reset bug
Roy Zang [Wed, 13 Jun 2007 09:13:42 +0000 (17:13 +0800)]
[POWERPC] 85xx: Fix 8548CDS reset bug

Begin with MPC8548 a new reset control register is added that asserts
HRESET_REQ to board logic.

This register is used for chip reset.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Fix the node index confusion for SOC
Roy Zang [Tue, 19 Jun 2007 07:19:31 +0000 (15:19 +0800)]
[POWERPC] Fix the node index confusion for SOC

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Document the global utilities node define and example
Roy Zang [Tue, 19 Jun 2007 07:19:18 +0000 (15:19 +0800)]
[POWERPC] Document the global utilities node define and example

Document the global utilities node define and example.

Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] spufs: Save dma_tagstatus_R in CSA
Kazunori Asayama [Fri, 29 Jun 2007 00:58:09 +0000 (10:58 +1000)]
[POWERPC] spufs: Save dma_tagstatus_R in CSA

The function backing_ops->read_mfc_tagstatus() doesn't return a
correct value because the dma_tagstatus_R register isn't saved in
CSA.  This fixes the problem.

Signed-off-by: Kazunori Asayama <asayama@sm.sony.co.jp>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spufs: Fix lost events in poll/epoll on mfc
Kazunori Asayama [Fri, 29 Jun 2007 00:58:08 +0000 (10:58 +1000)]
[POWERPC] spufs: Fix lost events in poll/epoll on mfc

When waiting for I/O events on mfc in an SPU context by using
poll/epoll syscalls, some of the events can be lost because of wrong
order of poll_wait and MFC status checks in the spufs_mfc_poll
function and non-atomic update of tagwait.  This fixes the
problem.

Signed-off-by: Kazunori Asayama <asayama@sm.sony.co.jp>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spufs: Add spu stats in sysfs
Christoph Hellwig [Fri, 29 Jun 2007 00:58:07 +0000 (10:58 +1000)]
[POWERPC] spufs: Add spu stats in sysfs

Export spu statistics in sysfs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
17 years ago[POWERPC] spusched: Fix runqueue corruption
Christoph Hellwig [Fri, 29 Jun 2007 00:58:06 +0000 (10:58 +1000)]
[POWERPC] spusched: Fix runqueue corruption

spu_activate can be called from multiple threads at the same time on
behalf of the same spu context.  We need to make sure to only add it
once to avoid runqueue corruption.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spusched: Disable tick when not needed
Christoph Hellwig [Fri, 29 Jun 2007 00:58:05 +0000 (10:58 +1000)]
[POWERPC] spusched: Disable tick when not needed

Only enable the scheduler tick if we have any context waiting to be
scheduled.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spufs: Fix libassist accounting
Jeremy Kerr [Fri, 29 Jun 2007 00:58:04 +0000 (10:58 +1000)]
[POWERPC] spufs: Fix libassist accounting

We're currently too permissive with counting libassist calls - fix the
check on the SPE stop-and-signal status.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spufs: Add stat file to spufs
Christoph Hellwig [Fri, 29 Jun 2007 00:58:03 +0000 (10:58 +1000)]
[POWERPC] spufs: Add stat file to spufs

Export per-context statistics in spufs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
17 years ago[POWERPC] spufs: Implement /proc/spu_loadavg
Christoph Hellwig [Fri, 29 Jun 2007 00:58:02 +0000 (10:58 +1000)]
[POWERPC] spufs: Implement /proc/spu_loadavg

Provide load average information for spu context.  The format
is identical to /proc/loadavg, which is also where a lot of code
and concepts is borrowed from.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
17 years ago[POWERPC] spufs: Add tid file
Christoph Hellwig [Fri, 29 Jun 2007 00:58:01 +0000 (10:58 +1000)]
[POWERPC] spufs: Add tid file

The new tid file contains the ID of the thread currently running the
context, if any.  This is used so that the new spu-top and spu-ps
tools can find the thread in /proc.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
17 years ago[POWERPC] spufs: Trivial whitespace fixes
Jeremy Kerr [Fri, 29 Jun 2007 00:58:00 +0000 (10:58 +1000)]
[POWERPC] spufs: Trivial whitespace fixes

Remove redundant whitespace in arch/powerpc/platforms/cell/spufs/

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spufs: Remove spufs_dir_inode_operations
Jeremy Kerr [Fri, 29 Jun 2007 00:57:59 +0000 (10:57 +1000)]
[POWERPC] spufs: Remove spufs_dir_inode_operations

spufs_dir_inode_operations is exactly the same as
simple_dir_inode_operations.  Use that instead.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spusched: No preemption for nosched contexts
Christoph Hellwig [Fri, 29 Jun 2007 00:57:58 +0000 (10:57 +1000)]
[POWERPC] spusched: No preemption for nosched contexts

And last but not least we need to make sure the scheduler tick never
preempts a nosched context.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
17 years ago[POWERPC] spusched: Catch nosched contexts in spu_deactivate
Christoph Hellwig [Fri, 29 Jun 2007 00:57:57 +0000 (10:57 +1000)]
[POWERPC] spusched: Catch nosched contexts in spu_deactivate

spu_deactivate should never be called for nosched contets.  Put in
a check so we can print a stacktrace and exit early in case it
happes erroneously.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
17 years ago[POWERPC] spusched: fix cpu/node binding
Christoph Hellwig [Fri, 29 Jun 2007 00:57:56 +0000 (10:57 +1000)]
[POWERPC] spusched: fix cpu/node binding

Add a cpus_allowed allowed filed to struct spu_context so that we always
use the cpu mask of the owning thread instead of the one happening to
call into the scheduler.  Also use this information in
grab_runnable_context to avoid spurious wakeups.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
17 years ago[POWERPC] spusched: Update scheduling paramters on every spu_run
Christoph Hellwig [Fri, 29 Jun 2007 00:57:55 +0000 (10:57 +1000)]
[POWERPC] spusched: Update scheduling paramters on every spu_run

Update scheduling information on every spu_run to allow for setting
threads to realtime priority just before running them.  This requires
some slightly ugly code in spufs_run_spu because we can just update
the information unlocked if the spu is not runnable, but we need to
acquire the active_mutex when it is runnable to protect against
find_victim.  This locking scheme requires opencoding
spu_acquire_runnable in spufs_run_spu which actually is a nice cleanup
all by itself.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
17 years ago[POWERPC] spusched: Print out scheduling tunables with DEBUG
Jeremy Kerr [Fri, 29 Jun 2007 00:57:54 +0000 (10:57 +1000)]
[POWERPC] spusched: Print out scheduling tunables with DEBUG

Print out a few scheduler tuning parameters when we've compiled
with DEBUG defined.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spusched: Fix timeslice calculations
Jeremy Kerr [Fri, 29 Jun 2007 00:57:53 +0000 (10:57 +1000)]
[POWERPC] spusched: Fix timeslice calculations

The current timeslice code mixes 'jiffies' up with 'spesched ticks'. This
change correctly defines the number of time slices each SPE contexts is
given, and clarifies the comment.

This brings the default timeslice for SPE contexts into a reasonable
range.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spusched: Dynamic timeslicing for SCHED_OTHER
Christoph Hellwig [Fri, 29 Jun 2007 00:57:52 +0000 (10:57 +1000)]
[POWERPC] spusched: Dynamic timeslicing for SCHED_OTHER

Enable preemptive scheduling for non-RT contexts.

We use the same algorithms as the CPU scheduler to calculate the time
slice length, and for now we also use the same timeslice length as the
CPU scheduler. This might be not enough for good performance and can be
changed after some benchmarking.

Note that currently we do not boost the priority for contexts waiting
on the runqueue for a long time, so contexts with a higher nice value
could starve ones with less priority.  This could easily be fixed once
the rework of the spu lists that Luke and I discussed is done.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
17 years ago[POWERPC] spusched: Switch from workqueues to kthread + timer tick
Christoph Hellwig [Fri, 29 Jun 2007 00:57:51 +0000 (10:57 +1000)]
[POWERPC] spusched: Switch from workqueues to kthread + timer tick

Get rid of the scheduler workqueues that complicated things a lot to
a dedicated spu scheduler thread that gets woken by a traditional
scheduler tick.  By default this scheduler tick runs a HZ * 10, aka
one spu scheduler tick for every 10 cpu ticks.

Currently the tick is not disabled when we have less context than
available spus, but I will implement this later.

Signed-off-by: Christoph Hellwig <hch@lst.de>
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>
17 years ago[POWERPC] spufs: Add bit definition
Sebastian Siewior [Fri, 29 Jun 2007 00:57:50 +0000 (10:57 +1000)]
[POWERPC] spufs: Add bit definition

Add a bit define from book, and replace one hex number with a
symbol, for clarity.

Signed-off-by: Sebastian Siewior <bigeasy@linux.vnet.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] spufs: fix building spufs/spu_save_dump.h
Sebastian Siewior [Fri, 29 Jun 2007 00:57:49 +0000 (10:57 +1000)]
[POWERPC] spufs: fix building spufs/spu_save_dump.h

Currently it fails with gcc from sdk 2.1 because of a spec change [1].
Maybe we should start using the definitions from spu_mfcio.h.

[1] http://gcc.gnu.org/ml/gcc-patches/2006-11/msg01598.html

Signed-off-by: Sebastian Siewior <bigeasy@linux.vnet.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Add copyright header to pci-common.c based on pci_{32,64}.c
Kumar Gala [Fri, 29 Jun 2007 03:56:24 +0000 (22:56 -0500)]
[POWERPC] Add copyright header to pci-common.c based on pci_{32,64}.c

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Use ppc64 style list management for pci_controller on ppc32
Kumar Gala [Wed, 27 Jun 2007 18:09:43 +0000 (13:09 -0500)]
[POWERPC] Use ppc64 style list management for pci_controller on ppc32

Use the ppc64 style list management and allocation functions for
pci_controllers.  This makes the pci_controller structs just a bit more
common between ppc32 & ppc64.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Move common PCI code out of pci_32/pci_64
Kumar Gala [Wed, 27 Jun 2007 16:07:51 +0000 (11:07 -0500)]
[POWERPC] Move common PCI code out of pci_32/pci_64

Moved the low hanging fruit that was either identical or close
to it between ppc32 & ppc64 for PCI into pci-common.c

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Move pci_bus_to_hose users to pci_bus_to_host
Kumar Gala [Wed, 27 Jun 2007 15:27:33 +0000 (10:27 -0500)]
[POWERPC] Move pci_bus_to_hose users to pci_bus_to_host

In the places we can move to using pci_bus_to_host, this allows us
to make pci_bus_to_host static and remove its export.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Merge ppc32 and ppc64 pcibios_alloc_controller() prototypes
Kumar Gala [Wed, 27 Jun 2007 06:56:50 +0000 (01:56 -0500)]
[POWERPC] Merge ppc32 and ppc64 pcibios_alloc_controller() prototypes

Make the ppc32 pcibios_alloc_controller take a device node to match
the ppc64 prototypes and have it set arch_data.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Use global_number in ppc32 pci_controller
Kumar Gala [Wed, 27 Jun 2007 06:17:57 +0000 (01:17 -0500)]
[POWERPC] Use global_number in ppc32 pci_controller

Make the pci_controller struct use global_number for the PHB domain number
instead of index to match what ppc64 does and reuse its pci_domain_nr code.

Introduced a pci-common.c to handle shared code between ppc32 & ppc64.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Removed dead code related to PCI on ppc32
Kumar Gala [Wed, 27 Jun 2007 06:14:04 +0000 (01:14 -0500)]
[POWERPC] Removed dead code related to PCI on ppc32

There are no in kernel users of any off these functions and some of
them were not even EXPORT_SYMBOL:

- pci_bus_io_base()
- pci_bus_io_base_phys()
- pci_bus_mem_base_phys()
- pci_resource_to_bus()
- phys_to_bus()
- pci_phys_to_bus()
- pci_bus_to_phys()
- pci_init_resource()
- resource_fixup()

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Remove local_number from pci_controller
Kumar Gala [Wed, 27 Jun 2007 05:19:08 +0000 (00:19 -0500)]
[POWERPC] Remove local_number from pci_controller

We never actually read local_number so lets just remove it.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Merge asm-ppc/pci-bridge.h into asm-power/pci-bridge.h
Kumar Gala [Wed, 27 Jun 2007 05:16:25 +0000 (00:16 -0500)]
[POWERPC] Merge asm-ppc/pci-bridge.h into asm-power/pci-bridge.h

Moved bits need for ppc32 from asm-ppc/pci-bridge.h into
asm-powerpc/pci-bridge.h.

Removed ARCH=powerpc specific bits (and comments related to ARCH=ppc)
from asm-ppc/pci-bridge.h as its only used on ARCH=ppc.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] 86xx: Created quirk_fsl_pcie_transparent() to initialize bridge resources.
Zhang Wei [Tue, 26 Jun 2007 23:22:40 +0000 (18:22 -0500)]
[POWERPC] 86xx: Created quirk_fsl_pcie_transparent() to initialize bridge resources.

The Freescale PCI-e RC poses as a transparent bridge, but does not
implement the IO_BASE or IO_LIMIT registers in the config space.  This
means that the code which initializes the bridge resources ends up
setting the IO resources erroneously.  Add quick_fsl_pcie_transparent()
to handle this.

This change sets RC of mpc8641 to be a transparent bridge
for legacy I/O access and initializes the RC bridge resources
from the device tree.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Let subordinate transparent bridges be transparent.
York Sun [Mon, 4 Jun 2007 16:56:42 +0000 (11:56 -0500)]
[POWERPC] Let subordinate transparent bridges be transparent.

In pcibios_fixup_bus(), bridges that are subordinate
to transparent bridges were still relocating their
IORESOURCE_IO and IO_RESOURCE_MEM start and end values.

Fix this by preventing the transparent bridge from
relocating the start and end values, thus allowing the
subordinate non-transparent bridge full molestation rights.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] MPC8641HPCN: Set IDE in ULI1575 to not native mode.
Zhang Wei [Tue, 22 May 2007 03:38:30 +0000 (11:38 +0800)]
[POWERPC] MPC8641HPCN: Set IDE in ULI1575 to not native mode.

Set IDE in ULI1575 to not 100% native mode, which forces
the IDE driver to probe the irq itself.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] 86xx: Workaround PCI_PRIMARY_BUS usage
Kumar Gala [Tue, 26 Jun 2007 17:12:55 +0000 (12:12 -0500)]
[POWERPC] 86xx: Workaround PCI_PRIMARY_BUS usage

The Freescale PCI-e controllers have an issue in that they use the
PCI_PRIMARY_BUS register in the virtual P2P bridge to determine which
bus number to match on when generating a type 0 config cycle.  The
issue is if we are renumbering bus numbers to match Linux we will try
setting the PCI_PRIMARY_BUS and will not know which bus number to use
for generating type 0 config cycles.  We surpress writing the register
in the P2P bridge and always keep it at zero.

In the future when proper PCI domain support is working we should be
able to remove this.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] 86xx: Avoid system halt if link training isn't at least L0.
Zhang Wei [Mon, 25 Jun 2007 20:21:10 +0000 (15:21 -0500)]
[POWERPC] 86xx: Avoid system halt if link training isn't at least L0.

We check the Link Training and State Status register to make sure we
are at least at the L0 state.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Acked-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Added indirect_type to handle variants of PCI ops
Kumar Gala [Mon, 25 Jun 2007 20:19:48 +0000 (15:19 -0500)]
[POWERPC] Added indirect_type to handle variants of PCI ops

The generic PCI config ops indirect support for ppc32 covers only two
cases (implicit vs explicit) type 0/1 config cycles via set_cfg_type.
Added a indirect_type bit mask to handle other variants.

Added support for PCI-e extended registers and moved the cfg_type
handling into the bit mask for ARCH=powerpc.  We can also use this to
handle indirect quirks.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] 86xx: Add uli1575 pci-bridge sector to MPC8641HPCN dts file.
Wade Farnsworth [Mon, 4 Jun 2007 20:24:47 +0000 (13:24 -0700)]
[POWERPC] 86xx: Add uli1575 pci-bridge sector to MPC8641HPCN dts file.

This adds device nodes for the PCI bridges as well as the ISA devices on
the newer revision MPC8641HPCN.  It also adds the PCI ranges to the soc
node so that address translation for the ISA devices works properly.

Signed-off-by: Wade Farnsworth <wfarnsworth@mvista.com>
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Remove PCI-e errata for MPC8641 silicon ver 1.0
Zhang Wei [Tue, 22 May 2007 03:38:26 +0000 (11:38 +0800)]
[POWERPC] Remove PCI-e errata for MPC8641 silicon ver 1.0

Remove errata for PCI-e support of Rev 1.0 of MPC8641 since its considered
obselete and is not production level silicon from Freescale.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Acked-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Removed remnants of bus_offset
Kumar Gala [Mon, 25 Jun 2007 18:32:48 +0000 (13:32 -0500)]
[POWERPC] Removed remnants of bus_offset

Removed the remants of bus_offset and use self_busno in the mv64x60 case
and use pci_assign_all_buses on 83xx/85xx.

83xx/85xx have multiple PHBs and the firmwares on these devices tend not
to handle topologies with P2P bridges well so we let Linux just reassign
the bus numbers to match.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Added self_busno to indicate which bus number the PHB is
Kumar Gala [Mon, 25 Jun 2007 18:09:42 +0000 (13:09 -0500)]
[POWERPC] Added self_busno to indicate which bus number the PHB is

Added self_busno to pci_controller and indirect PCI ops to be set by
board code to indicate which bus number to use when talking to the PHB.
By default we use zero since the majority of controllers that have
implicit mechanisms to talk to the PHBs use a bus number of zero.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Remove bus_offset in places its not really used
Kumar Gala [Mon, 25 Jun 2007 17:53:51 +0000 (12:53 -0500)]
[POWERPC] Remove bus_offset in places its not really used

The user of the fsl_pcie code doesn't set bus_offset and 82xx doesn't
require it either.  Remove the places in the code that reference it so
we can remove it all together.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Remove hack to determine the 2nd PHBs bus number
Kumar Gala [Fri, 22 Jun 2007 05:29:46 +0000 (00:29 -0500)]
[POWERPC] Remove hack to determine the 2nd PHBs bus number

Now that we have the pci_controller in the exclude function we can easy
figure out if the bus number is the PHB or not.  The old style of using a
variable setup at init time was actually broken and would only work in
specific cases.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Pass the pci_controller into pci_exclude_device
Kumar Gala [Fri, 22 Jun 2007 05:23:57 +0000 (00:23 -0500)]
[POWERPC] Pass the pci_controller into pci_exclude_device

There are times that we need to know which controller we are on to decide
how to exclude devices properly.  We now pass the pci_controller that we
are going to use down to the pci_exclude_device function. This will
greatly simplify being able to exclude the PHBs in multiple controller
setups.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] 52xx: Remove support for PCI bus_offset
Kumar Gala [Thu, 21 Jun 2007 16:32:38 +0000 (11:32 -0500)]
[POWERPC] 52xx: Remove support for PCI bus_offset

The hose->bus_offset is only used for PCI config cycles and the 52xx PCI
config code doesn't actually ever set bus_offset to a non-zero value.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] Remove set_cfg_type for PCI indirect users that don't need it
Kumar Gala [Thu, 21 Jun 2007 16:22:47 +0000 (11:22 -0500)]
[POWERPC] Remove set_cfg_type for PCI indirect users that don't need it

The Freescale and Marvell PCI controllers dont require explicit setting for
type 1 config cycles.  They handle producing them by implicitly looking at the
bus, devfn.

The TSI108 and 52xx don't use the generic PCI indirect code and thus don't
bother with set_cfg_type.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
17 years ago[POWERPC] disallow building powermac and tsi108 without PCI
Arnd Bergmann [Sun, 17 Jun 2007 23:06:58 +0000 (01:06 +0200)]
[POWERPC] disallow building powermac and tsi108 without PCI

The TSI108 code and the 32 bit powermac and chrp platforms
have dependency on PCI that is not easy or desirable to get rid
of.

The easiest fix is to always select CONFIG_PCI if one of those
platforms is enabled.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
17 years ago[POWERPC] fix building without PCI
Arnd Bergmann [Sun, 17 Jun 2007 23:06:57 +0000 (01:06 +0200)]
[POWERPC] fix building without PCI

Some code looks can be configured to be built without
PCI support, but does not work properly.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
17 years ago[POWERPC] kill isa_{io,mem}_base definitions for !PCI
Arnd Bergmann [Sun, 17 Jun 2007 23:06:56 +0000 (01:06 +0200)]
[POWERPC] kill isa_{io,mem}_base definitions for !PCI

When CONFIG_PCI is disabled, the definitions for isa_io_base,
isa_mem_base and pci_dram_offset are entirely unused, but they
can result in link failure because they are defined in multiple
places.

The easiest fix is to just remove all these definitions.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
17 years ago[POWERPC] mpc82xx_ads build fix
Arnd Bergmann [Sun, 17 Jun 2007 23:06:55 +0000 (01:06 +0200)]
[POWERPC] mpc82xx_ads build fix

needed for 6xx allyesconfig

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
17 years ago[POWERPC] rename add_bridge to avoid namespace clashes
Arnd Bergmann [Sun, 17 Jun 2007 23:06:54 +0000 (01:06 +0200)]
[POWERPC] rename add_bridge to avoid namespace clashes

Many platforms currently define their own add_bridge function, some
of them globally. This breaks some multiplatform configurations.
Prefixing each of these functions with the platform name avoids
this problem.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
17 years ago[POWERPC] move 82xx/83xx/86xx Kconfig options to platform selection
Arnd Bergmann [Sun, 17 Jun 2007 23:06:52 +0000 (01:06 +0200)]
[POWERPC] move 82xx/83xx/86xx Kconfig options to platform selection

The cores used in the MPC82xx/83xx/86xx embedded controllers are very similar
to those in the 32 bit general-purpose processors, so it makes sense to
treat them as the same CPU family.

Choosing between the embedded platforms and the multiplatform code is
now done in the platform menu, but functionally everything stays the
same.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
17 years ago[POWERPC] In booting-without-of.txt, clarify that properties must precede subnodes
David Gibson [Thu, 28 Jun 2007 05:56:26 +0000 (15:56 +1000)]
[POWERPC] In booting-without-of.txt, clarify that properties must precede subnodes

A strict reading of the flattened device tree format defined in
booting-without-of.txt does in fact require that all the tags defining
properties for a node go before any definitions of subnodes, however
it's not particularly emphasised.  Although allowing intermingled
properties and subnodes would not be ambiguous in meaning, the kernel
parser does currently require that properties precede subnodes.
Furthermore, keeping this constraint makes life easier for various
device tree scanning tools.

Therefore, re-emphasise in booting-without-of.txt that this is a
strict requirement of the flattened device tree format.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Abolish unused ucBoardRev variables
David Gibson [Wed, 27 Jun 2007 06:54:58 +0000 (16:54 +1000)]
[POWERPC] Abolish unused ucBoardRev variables

asm-powerpc/processor.h declares, and arch/ppc/platforms/prep_setup.c
defines variables ucBoardRev, ucBoardRevMaj and ucBoardRevMin which
are used nowhere in the current kernel (neither in arch/ppc nor
arch/powerpc).  This removes them.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Make more OF-related bootwrapper functions available to non-OF platforms
David Gibson [Wed, 27 Jun 2007 06:54:58 +0000 (16:54 +1000)]
[POWERPC] Make more OF-related bootwrapper functions available to non-OF platforms

Commit 2e6016133755eb3cc44e8efab92573d23ed75888 split up
arch/powerpc/boot/of.c so that some OF functions can be used on
platforms that don't want to use the overall OF platform boot code.
This is useful on things like PReP which can have an OF implementation
which is useful for debugging output, but inadequate for booting.

However, that commit didn't export quite enough things to make a
usable OF console on a non-OF system.  In particular, the device tree
manipulation performed to initialize the OF console code must
explicitly use the OF device tree, rather than the flattened device
tree, even if the system is otherwise booting using a flattened device
tree.  This makes it so.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Turn off debugging in arch/powerpc/kernel/pci_64.c
Michael Ellerman [Wed, 27 Jun 2007 06:02:55 +0000 (16:02 +1000)]
[POWERPC] Turn off debugging in arch/powerpc/kernel/pci_64.c

Commit 3d5134ee8341bffc4f539049abb9e90d469b448d left debugging turned on
in arch/powerpc/kernel/pci_64.c.  This turns it off again.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Move iSeries_tb_recal into its own late_initcall.
Tony Breeds [Fri, 22 Jun 2007 06:54:30 +0000 (16:54 +1000)]
[POWERPC] Move iSeries_tb_recal into its own late_initcall.

Currently iSeries will recalibrate the cputime_factors in the first
settimeofday() call.

It seems the reason for doing this is to ensure a resaonable time delta after
time_init().  On current kernels (with udev), this call is made 40-60 seconds
into the boot process, by moving it to a late initcall it is called
approximately 5 seconds after time_init() is called.  This is sufficient to
recalibrate the timebase.

Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
CC: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] PS3: Storage device registration routines
Geert Uytterhoeven [Thu, 21 Jun 2007 14:14:22 +0000 (00:14 +1000)]
[POWERPC] PS3: Storage device registration routines

Add support for storage devices to the device probe code.

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>
17 years ago[POWERPC] PS3: Storage Driver Core
Geert Uytterhoeven [Thu, 21 Jun 2007 14:14:21 +0000 (00:14 +1000)]
[POWERPC] PS3: Storage Driver Core

Add storage driver core support for the PS3.
PS3 storage devices are a special kind of PS3 system bus device.

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>
17 years ago[POWERPC] PS3: Preallocate bootmem memory for the PS3 FLASH ROM storage driver
Geert Uytterhoeven [Thu, 21 Jun 2007 14:14:20 +0000 (00:14 +1000)]
[POWERPC] PS3: Preallocate bootmem memory for the PS3 FLASH ROM storage driver

Preallocate 256 KiB of bootmem memory for the PS3 FLASH ROM storage driver.
This can be disabled by passing `ps3flash=off' on the kernel command line.

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>
17 years ago[POWERPC] PS3: Update ps3_defconfig
Geoff Levand [Fri, 15 Jun 2007 22:07:30 +0000 (08:07 +1000)]
[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>
17 years ago[POWERPC] PS3: Fix more sparse warnings
Geert Uytterhoeven [Fri, 15 Jun 2007 22:07:23 +0000 (08:07 +1000)]
[POWERPC] PS3: Fix more sparse warnings

Fix some PS3 build warnings reported by `make C=1'.

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>
17 years ago[POWERPC] PS3: Select MEMORY_HOTPLUG
Geoff Levand [Fri, 15 Jun 2007 22:07:16 +0000 (08:07 +1000)]
[POWERPC] PS3: Select MEMORY_HOTPLUG

The PS3 uses the kernel's hotplug memory support, so make sure it is
always enabled when building for PS3.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] PS3: Device tree source
Geoff Levand [Fri, 15 Jun 2007 22:06:51 +0000 (08:06 +1000)]
[POWERPC] PS3: Device tree source

The PS3 device tree source.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Make kernel_entry_t have global scope in bootwrapper
Geoff Levand [Fri, 15 Jun 2007 22:06:44 +0000 (08:06 +1000)]
[POWERPC] Make kernel_entry_t have global scope in bootwrapper

For the convenience of custom platform code make the powerpc
bootwrapper typdef kernel_entry_t global in scope.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Fix constantness of bootwrapper arg
Geoff Levand [Fri, 15 Jun 2007 22:06:40 +0000 (08:06 +1000)]
[POWERPC] Fix constantness of bootwrapper arg

Fixes the constantness of the powerpc bootwrapper's console_ops.write
routine.  Allows printing of constant strings.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Add u64 printf to bootwrapper
Geoff Levand [Fri, 15 Jun 2007 22:06:36 +0000 (08:06 +1000)]
[POWERPC] Add u64 printf to bootwrapper

Add support for the 'll' (long long) printf qualifier in the powerpc zImage
bootwrapper.  This is useful for bootwrapper debugging on 64 bit platforms.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Add signed types to bootwrapper
Geoff Levand [Fri, 15 Jun 2007 22:06:28 +0000 (08:06 +1000)]
[POWERPC] Add signed types to bootwrapper

Add signed types to the powerpc zImage bootwrapper. These are needed by the
PS3 hcall interface.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
17 years ago[POWERPC] Correct __secondary_hold comment
Geoff Levand [Fri, 15 Jun 2007 22:06:23 +0000 (08:06 +1000)]
[POWERPC] Correct __secondary_hold comment

Remove references to pSeries and OpenFirmware in the __secondary_hold
usage comment.  __secondary_hold is a generic routine and can be used
by other platforms.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>