Commit graph

3016 commits

Author SHA1 Message Date
Guennadi Liakhovetski
7f2862c345 [POWERPC] linkstation updates
1. Fix RTC type - it is a rs5c372a, not rs5c372b
2. Configure both UART interrupts edge-triggered
3. Add a license header to ls_uart.c
4. Check for running on linkstation in a late_initcall() function. Needed
   for multiplatform builds, even though linkstation doesn't support them
   yet
5. Remove unneeded #include from linkstation.c

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-14 08:51:27 -05:00
Kumar Gala
7f50382dc8 [POWERPC] 85xx: Clean up from 85xx_ds rename
Renamed functions in 85xx_ds from 8544 to 85xx.

Kept an unique machine def/probe for the MPC8544 DS board to
handle some subtle differences between the future board based
on the DS platform.

Also fixed building w/o CONFIG_PCI and minor whitespace fixes.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-13 15:45:03 -05:00
Kumar Gala
16d24060d1 [POWERPC] 85xx: Renamed mpc8544_ds.c to mpc85xx_ds.c
Renamed the mpc8544_ds.c board code to mpc85xx_ds.c to make it more
generic in prep for other boards based on the same platform.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-13 15:43:48 -05:00
Geoff Levand
75cdff9242 [POWERPC] PS3: Enhance storage probe debug output
Add some more info to the PS3 storage probe debug output.

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:26 +10:00
Jeremy Kerr
85d02924a3 [POWERPC] PS3: Fix CONFIG_SMP=n, CONFIG_KEXEC=y build
Currently, the ps3 kernel fails to build without smp but with kexec, as
ps3_kexec_cpu_down needs ps3_smp_cleanup_cpu, which isn't defined on UP
kernels. This change adds an empty ps3_smp_cleanup_cpu for UP kernels.

Booted on ps3.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:25 +10:00
Olof Johansson
0d72ba930c [POWERPC] Add workaround for MPICs with broken register reads
Some versions of PWRficient 1682M have an interrupt controller in which
the first register in each pair for interrupt sources doesn't always
read with the right polarity/sense values.

To work around this, keep a software copy of the register instead.  Since
it's not modified from the mpic itself, it's a feasible solution.  Still,
keep it under a config option to avoid wasting memory on other platforms.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:25 +10:00
David Gibson
2099172d61 [POWERPC] Document and implement an improved flash device binding for powerpc
This replaces the binding for flash chips in booting-without-of.txt
with an clarified and improved version.  It also makes
drivers/mtd/maps/physmap_of.c recognize this new binding.  Finally it
revises the Ebony device tree source to use the new binding as an
example.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:25 +10:00
Linas Vepstas
3c607ce2a3 [POWERPC] setup_64.c and prom.c comment cleanup
Grammatical corrections to comments.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:24 +10:00
Linas Vepstas
70c6cc37db [POWERPC] prom.c whitespace cleanup
Whitespace cleanup: badly indented lines.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:24 +10:00
Linas Vepstas
e788ff13be [POWERPC] prom_init whitespace cleanup, typo fix
Whitespace cleanup: badly indented lines.
Typo in comment.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:24 +10:00
Scott Wood
bde6c6e16a [POWERPC] Check _PAGE_RW and _PAGE_PRESENT on kernel addresses
Previously, the TLB miss handlers assumed that pages above KERNELBASE are
always present and read/write.  This assumption is false in the case of
CONFIG_DEBUG_PAGEALLOC.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:23 +10:00
Scott Wood
96ebc3bfb6 [POWERPC] bootwrapper: Only print MAC addresses when the node is actually present
Some firmwares (such as PlanetCore) only provide a base MAC address, and
expect the kernel to set certain bits to generate the addresses for the
other ports.  As such, MAC addresses are generated that may not correspond
to actual hardware.

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>
2007-09-14 01:33:23 +10:00
Scott Wood
21f3fe2f7a [POWERPC] bootwrapper: Add get_path()
This will be used by the PlanetCore firmware support to construct
a linux,stdout-path from the serial node that it finds.

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>
2007-09-14 01:33:23 +10:00
Scott Wood
9de782770b [POWERPC] bootwrapper: Add strtoull()
This will be needed by PlanetCore firmware support.

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>
2007-09-14 01:33:23 +10:00
Scott Wood
4674f2f339 [POWERPC] bootwrapper: flatdevtree fixes
1. ft_create_node was returning the internal pointer rather than a phandle.
2. ft_find_device_rel was treating a "top" phandle of NULL as an error,
rather than as the root of the tree.  The old, absolute ft_find_device
is removed, and the relative version is renamed to ft_find_device().

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>
2007-09-14 01:33:23 +10:00
Olof Johansson
6bcc4c0175 [POWERPC] Remove warning in arch/powerpc/kernel/sysfs.c
Fixes:

arch/powerpc/kernel/sysfs.c: In function 'cpu_add_sysdev_attr_group':
arch/powerpc/kernel/sysfs.c:388: warning: ignoring return value of
	'sysfs_create_group', declared with attribute warn_unused_result

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:22 +10:00
Olof Johansson
a416561bf7 [POWERPC] Move lowlevel runlatch calls under cpu feature control
There's no need to call the runlatch on functions on processors that
don't implement them (CPU_FTR_CTRL).

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:22 +10:00
Olof Johansson
01f1c735f5 [POWERPC] Remove unused platform_machine_check()
Remove leftover cruft from ARCH=ppc.

There are no users of platform_machine_check() in ARCH=powerpc, and none
should be added (they should use ppc_md.machine_check_handler instead).

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:22 +10:00
Olof Johansson
3850169dbd [POWERPC] pasemi: Move pasemi_idle_init() to late_initcall()
Move pasemi_idle_init() to be a late_initcall instead of being called from
setup_arch().  This way the cpufreq driver has a chance to initialize and
save away the boot time astate before we go to idle for the first time.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:22 +10:00
Olof Johansson
cd7834167f [POWERPC] pasemi: Print more information at machine check
Add printout of some SoC error status registers, and dump the SLB contents
for those machine check events where it makes sense.

Since we can't go about and ioremap registers at machine check time,
and we generally want to do as little as possible to print out the
information, pre-build a table of the registers to dump and their address
in the common PCI config space range.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:21 +10:00
Olof Johansson
2e1957fd47 [POWERPC] pasemi: Export more SPRs to sysfs when CONFIG_DEBUG_KERNEL=y
Export some of the implementation-specific registers via sysfs.
Useful when debugging, etc.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:21 +10:00
Olof Johansson
4d442331e5 [POWERPC] pasemi: Add workaround for erratum 5945
Erratum 5945 causes some of the registers on the PCIe root ports to
not read correctly.  Do a small dance to avoid this: Write an unused
register, read the value and write it back.  Thankfully this is not in
a hot code path.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:21 +10:00
Olof Johansson
68c8404c74 [POWERPC] pasemi: Add pasemi_pci_getcfgaddr()
Add pasemi_pci_getcfgaddr(), to get the remapped address of a specific
config register for a PCI device.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:21 +10:00
Olof Johansson
a302cb9d95 [POWERPC] Export new __io{re,un}map_at() symbols
Export new __io{re,un}map_at() symbols so modules can use them.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:21 +10:00
Michael Ellerman
60b332e755 [POWERPC] Export virq mapping via debugfs
This adds a debugfs file "powerpc/virq_mapping", which shows the virtual
to real mapping of irq numbers.  Enable it with CONFIG_VIRQ_DEBUG.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Chen Gong <G.Chen@freescale.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:20 +10:00
Michael Ellerman
7866291d4c [POWERPC] Initialise hwirq for legacy irqs
Although no one uses the hwirq value for legacy irqs at the moment, we
should really setup the correct value in the irq_map.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:20 +10:00
Michael Ellerman
6815800601 [POWERPC] Provide a default irq_host match, which matches on an exact of_node
The most common match semantic is an exact match based on the device node.
So provide a default implementation that does this, and hook it up if no
match routine is specified.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:20 +10:00
Michael Ellerman
8528ab84eb [POWERPC] Invert null match behaviour for irq_hosts
Currently if you don't specify a match callback for your irq_host it's
assumed you match everything. This is a kind of opt-out approach, and
turns out to be the exception rather than the rule.

So change the semantics to be opt-in, ie. you don't match anything unless
you provide a match callback.  This in itself isn't very useful, but will
allow us to provide a default match implementation in a subsequent patch.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:20 +10:00
Michael Ellerman
52964f87c6 [POWERPC] Add an optional device_node pointer to the irq_host
The majority of irq_host implementations (3 out of 4) are associated
with a device_node, and need to stash it somewhere. Rather than having
it somewhere different for each host, add an optional device_node pointer
to the irq_host structure.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:20 +10:00
David Gibson
0ae0b54565 [POWERPC] Move bootwrapper's strchr() and strncmp() from .h to string.S
Currently the bootwrapper has implementations of strchr() and
strncmp(), but they're inlines in flatdevtree_env.h, rather than in
string.S with all the rest of the string functions.  This moves
them to string.S.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:19 +10:00
Linas Vepstas
768cc2d3b2 [POWERPC] IOMMU virtual merge is no longer experimental
Per conversations with BenH, IOMMU virtual merging should no longer
be considered to be an "experimental" feature.  In particular,
CONFIG_VMERGE has been set to "y" in the defconfigs for quite a while.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

----
 arch/powerpc/Kconfig |   11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14 01:33:19 +10:00
Paul Mackerras
b2315372ea Merge branch 'linux-2.6' into for-2.6.24 2007-09-14 01:24:25 +10:00
Linus Torvalds
c87ce65868 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] Move serial_dev_init to device_initcall()
  [POWERPC] Enable GENERIC_ISA_DMA if FSL_ULI1575 to fix compile issue
  [POWERPC] cpm2: Fix off-by-one error in setbrg().
  [PPC] 8xx: Fix r3 trashing due to 8MB TLB page instantiation
  [POWERPC] 8{5,6}xx: Fix build issue with !CONFIG_PCI
2007-09-12 12:23:51 -07:00
Olof Johansson
ee56c47440 [POWERPC] Move serial_dev_init to device_initcall()
With the I/O space rewrite by BenH, the legacy_serial serial_dev_init()
initcall is now called before I/O space is setup, but it's dependent on
it being available.

Since there's no way to make dependencies between initcalls, we'll just
have to move it to device_initcall(). Yes, it's suboptimal but I'm not
aware of any better solution at this time, and it fixes a regression
from 2.6.22.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-13 04:09:14 +10:00
Kumar Gala
fb4f0e8832 [POWERPC] Enable GENERIC_ISA_DMA if FSL_ULI1575 to fix compile issue
Since the ULI1575 has a ISA bus we need to enable the generic ISA dma
support for drivers that might expect it.  Without this we get compile
errors like the following:

ound/built-in.o: In function `claim_dma_lock':
/home/galak/git/linux-8572/include/asm/dma.h:189: undefined reference to `dma_spin_lock'
/home/galak/git/linux-8572/include/asm/dma.h:189: undefined reference to `dma_spin_lock'
sound/built-in.o: In function `release_dma_lock':
/home/galak/git/linux-8572/include/asm/dma.h:195: undefined reference to `dma_spin_lock'
sound/built-in.o: In function `claim_dma_lock':
/home/galak/git/linux-8572/include/asm/dma.h:189: undefined reference to `dma_spin_lock'
/home/galak/git/linux-8572/include/asm/dma.h:189: undefined reference to `dma_spin_lock'
sound/built-in.o:/home/galak/git/linux-8572/include/asm/dma.h:195: more undefined references to `dma_spin_lock' follow
make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-12 10:41:10 -05:00
Scott Wood
83fcdb4b35 [POWERPC] cpm2: Fix off-by-one error in setbrg().
The hardware adds one to the BRG value to get the divider, so it must
be subtracted by software.  Without this patch, characters will occasionally
be corrupted.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-10 16:02:09 -05:00
Kumar Gala
2af8569dc9 [POWERPC] 8{5,6}xx: Fix build issue with !CONFIG_PCI
We needed some ifdef CONFIG_PCI protection for pcibios_fixup so we
can build !CONFIG_PCI.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-10 16:00:09 -05:00
Joachim Fenkes
d8612417b2 [POWERPC] ibmebus: Prevent bus_id collisions
Previously, ibmebus derived a device's bus_id from its location code.
The location code is not guaranteed to be unique, so we might get bus_id
collisions if two devices share the same location code.  The OFDT
full_name, however, is unique, so we use that instead (truncating it
on the left if it is too long).

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-11 04:30:37 +10:00
Geert Uytterhoeven
d51dd3de87 [POWERPC] cell/PS3: Ignore storage devices that are still being probed
On PS3, A storage device may show up in the repository before the hypervisor
has finished probing:
  - If its type is not yet known, it shows up as PS3_DEV_TYPE_STOR_DUMMY,
  - If its regions are being probed, it shows up as having zero regions.
If any of these happen, consider the device not yet present.  The storage
probe thread will retry later.

This fixes the timing-dependent problem where a kernel booted from FLASH ROM
sometimes cannot find the hard disk.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-11 04:30:37 +10:00
Jeremy Kerr
ef8034d01a [POWERPC] cell/PS3: Always set master run control bit in mfc_sr1_set
At present, running any SPE program on the ps3 will trigger a BUG_ON
when spufs_run_spu tries to clear the master run control bit, as lv1
does not make the master run control available to Linux.

This change makes SPE apps work again by disabling changes to the
master run control on PS3.  Although we don't have the facility to
disable a SPE with supervisor-level privileges, it's better than
hitting the BUG_ON unconditionally.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Acked-by: Masato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-11 04:30:36 +10:00
Masato Noguchi
b7f90a406f [POWERPC] cell/PS3: Fix a bug that causes the PS3 to hang on the SPU Class 0 interrupt.
The Cell BE Architecture spec states that the SPU MFC Class 0 interrupt
is edge-triggered.  The current spu interrupt handler assumes this
behavior and does not clear the interrupt status.

The PS3 hypervisor visualizes all SPU interrupts as level, and on return
from the interrupt handler the hypervisor will deliver a new virtual
interrupt for any unmasked interrupts which for which the status has not
been cleared.  This fix clears the interrupt status in the interrupt
handler.

Signed-off-by: Masato Noguchi <Masato.Noguchi@jp.sony.com>
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
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>
2007-09-11 04:30:36 +10:00
Josh Boyer
5326152fa1 [POWERPC] Walnut zImage wrapper
Add zImage wrapper for walnut board

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-09-07 07:51:44 -05:00
Josh Boyer
545c069ccd [POWERPC] Walnut board support
Board support for the PPC405 Walnut evaluation board

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-09-07 07:51:24 -05:00
Josh Boyer
7f2814d229 [POWERPC] Walnut defconfig
Walnut board defconfig

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-09-07 07:51:08 -05:00
Josh Boyer
8852ab7afc [POWERPC] Walnut DTS
Device tree source file for the PPC405 Walnut evaluation board.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-09-07 07:50:50 -05:00
Josh Boyer
1f6e579521 [POWERPC] Fix bus probe on Bamboo board
Commit 804ace8881 changed the behavior of how compatible nodes are found.
This highlighted a bug on the Bamboo board where it wasn't probing the bus
specified in the DTS file.  We fix it by being explicit about which bus to
probe.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbvear.id.au>
2007-09-07 07:50:26 -05:00
Josh Boyer
c9c6b744d8 [POWERPC] Remove dtc build cruft from DTS files
The patch below removes the dtc incantation instructions from the
in-kernel DTS files.  It's not needed, and is prone to being
out-of-date most of the time.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-09-07 07:49:59 -05:00
Valentine Barshak
606d08bcd6 [POWERPC] PowerPC 440EPx: Sequoia bootwrapper
Bootwrapper code for AMCC PPC440EPx Sequoia.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-09-07 07:49:28 -05:00
Valentine Barshak
15fc993e31 [POWERPC] PowerPC 440EPx: Sequoia board support
AMCC PPC440EPx Sequoia board support.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-09-07 07:49:13 -05:00
Valentine Barshak
38a5d6c9e7 [POWERPC] PowerPC 440EPx: Sequoia defconfig
AMCC PPC440EPx Sequoia default config.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-09-07 07:48:49 -05:00
Valentine Barshak
d60ff95365 [POWERPC] PowerPC 440EPx: Sequoia device tree
AMCC PPC440EPx Sequoia device tree.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2007-09-07 07:48:17 -05:00
Masakazu Mokuno
fc43dca9e7 [POWERPC] PS3: Fix bug where the major version part is not compared
Fix the bug that the major version part of the firmware version number
is ignored in the comparison done by ps3_compare_firmware_version
because the difference of two 64-bit quantities is returned as an int.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-30 20:49:41 +10:00
Paul Mackerras
13a6976afd [POWERPC] Update defconfigs
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-30 16:51:51 +10:00
Andre Detsch
ada83daab3 [POWERPC] spufs: Don't call spu_run_init from spu_reacquire_runnable
This fixes a major bug which was happening when a SPU thread advances
its execution right after being restored to a SPU.  A potentially
outdated NPC value was being (re)written to the SPU.

So, spu_run_init, in this case, was either not doing anything relevant,
or breaking the execution of the SPU thread.

This fixes a common problem of losing a mailbox write when it was done
to a saved context.

Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-30 16:27:18 +10:00
Arnd Bergmann
62ee68e3bc [POWERPC] spufs: Fix update of mailbox status register during backed wbox write
When a process writes into the inbound spu mailbox (wbox) while the
context is saved, we accidentally break the contents of the mb_stat_R
register by clearing other entries of the mailbox status register. This
can cause the user side to hang.

This change fixes the problem by only altering the appropriate bits
of the mailbox status register during a backing-store write.

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>
2007-08-30 16:27:18 +10:00
Christian Krafft
aac2e68481 [POWERPC] spu_manage: fix spu_unit_number for celleb device tree
This fixes a regression introduced with 2.6.23-rc4 after on some
confusion about the device tree interfaces.

IBM QS21 device trees provide "physical-id", so we changed the code to
run on that and remain compatible with all IBM machines.

However, the Toshiba Celleb device tree provides the "unit-id" property,
which was in the Linux code, but never used in this way on IBM hardware.

Legacy device tree used the reg property for the physical id of an spe.
This patch fixes find_spu_unit_number to look for the spu id in that order.
The length is checked to avoid misinterpretation in case the attributes
unit-id or reg do not contain the id.

Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Cc: Jeremy Kerr <jk@ozlabs.org>
2007-08-30 01:35:05 +02:00
Kumar Gala
5cc44e086d [POWERPC] Update defconfigs
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-29 16:47:38 -05:00
Kumar Gala
0ee6c15e7b [POWERPC] Flush registers to proper task context
When we flush register state for FP, Altivec, or SPE in flush_*_to_thread
we need to respect the task_struct that the caller has passed to us.

Most cases we are called with current, however sometimes (ptrace) we may
be passed a different task_struct.

This showed up when using gdbserver debugging a simple program that used
floating point. When gdb tried to show the FP regs they all showed up as
0, because the child's FP registers were never properly flushed to memory.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-28 21:15:53 -05:00
Paul Mackerras
35438c4327 Merge branch 'linux-2.6' into for-2.6.24 2007-08-28 15:56:11 +10:00
Paul Mackerras
175587cca7 [POWERPC] Fix SLB initialization at boot time
This partially reverts edd0622bd2.

It turns out that the part of that commit that aimed to ensure that we
created an SLB entry for the kernel stack on secondary CPUs when
starting the CPU didn't achieve its aim, and in fact caused a
regression, because get_paca()->kstack is not initialized at the point
where slb_initialize is called.

This therefore just reverts that part of that commit, while keeping
the change to slb_flush_and_rebolt, which is correct and necessary.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-25 16:58:43 +10:00
Arnd Bergmann
b22ddc703c [POWERPC] cell: Update cell_defconfig for 2.6.23
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-25 16:58:27 +10:00
Maxim Shchetynin
b0e81ebb10 [POWERPC] axonram: Do not delete gendisks queue in error path
On exit do not delete gendisk's queue because this is already done by
del_gendisk(). Doing it twice may cause memory damage.

Signed-off-by: Maximilian <maxim@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-25 16:58:27 +10:00
Maxim Shchetynin
fedcd2c53d [POWERPC] axonram: Module modification for latest firmware API changes
Firmware would not deliver two interrupt numbers in device-tree any more
but only one, for correctable ECC, because uncorrectable ECC from now
is handled by firmware itself.
Changes in the axonram module are necessary because in the old version, if
it is not allowed to fetch the second interrupt number from device-tree,
it interpretes this as an error case and exits.

Signed-off-by: Maximilian <maxim@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-25 16:58:27 +10:00
Arnd Bergmann
3addf55c94 [POWERPC] cell: Support pinhole-reset on IBM cell blades
The Cell Broadband Engine has a method of injecting a
system-reset-exception from an external source into the
operating system, which should trigger the regular behaviour
of entering xmon or kdump.

Unfortunately, the exception handler cannot distinguish it from
other interrupt causes by the SRR1 register, which gets used
for this on Power 6 and others.

IBM Blade servers that want to support triggering the
system reset exception using a pinhole button in the front
panel therefore use an extra register to determine the
reset cause.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>

--
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-25 16:58:26 +10:00
Christian Krafft
fa7f374bbf [POWERPC] spu_manage: Use newer physical-id attribute
Legacy device tree used the reg property for the physical id of an
spe.  On newer device tree layouts the reg property contains the
"correct" value in the reg attribute.  So there has been intoduced the
"physical-id" on newer devicetree layouts.  The id is stored by
spu_manage into the spu struct as spe_id.  cbe_thermal has been
changed to use the spu->spe_id.  There's no need for the thermal code
to check devicetree attributes for itself.

Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Cc: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-25 16:58:26 +10:00
Olof Johansson
dfa70f81a0 [POWERPC] pasemi: Another IOMMU bugfix for 64K PAGE_SIZE
More fallout from the switch from PAGE_SIZE based IOMMU to the native page
size for the driver. By pure luck it happened to work most of the time, since
we end up invalidating the wrong entries in the TLB.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-25 16:58:26 +10:00
Kumar Gala
2f6c9d9610 [POWERPC] Stop include asm-ppc when building ARCH=powerpc for ppc32
We no longer have any dependancies on include/asm-ppc so we can get ride
of the makefile hacks to include it in the build process.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-22 22:47:33 -05:00
Kumar Gala
33d71d26ba [POWERPC] Copy over headers from arch/ppc to arch/powerpc that we need
To build arch/powerpc without including asm-ppc/ we need these files
in asm-powerpc/

Moved some headers under arch/powerpc/platforms if they were only used by
platform or driver files and fixed up the source file includes to match
the new locations

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-22 22:43:29 -05:00
Kumar Gala
ed16c20da6 [POWERPC] Remove old includes from arch/ppc
Remove includes of files that existed in arch/ppc that we dont need in
arch/powerpc anymore.  The following includes were removed:

 <asm/amigappc.h>
 <asm/bootinfo.h>
 <asm/ppcboot.h>
 <asm/ppc_sys.h>
 <asm/residual.h>
 <asm/m8260_pci.h>

This also caused platforms/embedded6xx/mpc7448_hpc2.h to no longer be
needed and thus removed.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-08-22 22:39:35 -05:00
Stephen Rothwell
5b072ba453 [POWERPC] Exception numbers are not relevant to iSeries
so remove them from the macros.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 16:48:36 +10:00
Stephen Rothwell
7180e3e636 [POWERPC] Split out iSeries specific exception macros
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 16:48:35 +10:00
Stephen Rothwell
dc8f571a26 [POWERPC] Move the iSeries exception vectors
out of head_64.S and into platforms/iseries/exception.S

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 16:48:35 +10:00
Stephen Rothwell
f9ff0f3048 [POWERPC] Move the exception macros into a header file
It makes head_64.S a bit more readable and will allow us to move the
iSeries exceptions elsewhere.

This also removes the last line of the comment:

 * The following macros define the code that appears as
 * the prologue to each of the exception handlers.  They
 * are split into two parts to allow a single kernel binary
 * to be used for pSeries and iSeries.
 * LOL.  One day... - paulus

Anything is possible. :-)

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 16:48:35 +10:00
Stephen Rothwell
fc68e8699f [POWERPC] Move iSeries startup code out of head_64.S
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 16:48:34 +10:00
Olof Johansson
dc559f7cd5 [POWERPC] Rework SMP timebase handoff for pasemi
Rework timebase handoff to play nice with configurations with more than
2 cores, as well as with CPU hotplug.

Previous scheme just pushed out the current timebase from the giving
core to all cores without caring if they wanted it or not, nor checking
if they'd taken it. The taking side didn't make sure the giving side
had provided a value yet either. In other words, it was completely broken.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:37:11 +10:00
Scott Wood
e5d8d54db2 [POWERPC] bootwrapper: Add PowerQUICC II (82xx with CPM) cuboot support
This allows booting on legacy, non-device-tree aware versions of U-boot.

It also fixes up the hardware to match the PCI and chipselect information
in the device tree, as u-boot is inconsistent in setting these up
correctly (or at all).

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 15:37:09 +10:00
Scott Wood
0b195812df [POWERPC] bootwrapper: Add 8xx cuboot support
This allows booting on legacy, non-device-tree aware versions of U-boot.

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 15:28:59 +10:00
Scott Wood
2f1d489932 [POWERPC] bootwrapper: Move linker symbols into ops.h
Most of these were previously used by numerous C files and
redeclared in each one.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:27:28 +10:00
Scott Wood
d0f53fafc0 [POWERPC] bootwrapper: Add CPM serial driver
This serial port is used on all 8xx, many 82xx, and some 85xx chips.

The driver requires that the port has already been set up by the firmware
and/or platform code.

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 15:26:20 +10:00
Scott Wood
3ee9b7abaf [POWERPC] bootwrapper: Declare udelay() in ops.h
Declarations in various users are removed.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-22 15:21:49 +10:00
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