Commit Graph

4227 Commits

Author SHA1 Message Date
Remi Machet
ff114b669b [POWERPC] Initialize all mv64x60 devices even if one fails
If one of the devices of the mv64x60 init fails, the remaining
devices are not initialized.

This changes the code to display an error and continue the
initialization.

Signed-off-by: Remi Machet (rmachet@slac.stanford.edu)
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-24 20:57:34 +10:00
Remi Machet
21dbfd291f [POWERPC] Use default values if necessary in mv64x60 I2C initialization
I2C parameters freq_m and freq_n are assigned defaults in the code,
but if properties for those parameters are not found in the open
firmware description the init routine returns an error and doesn't
create the platform device.

This changes the code so that it doesn't return an error if the
properties are not found but instead uses the default values.

Signed-off-by: Remi Machet (rmachet@slac.stanford.edu)
Acked-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-24 20:57:34 +10:00
Benjamin Herrenschmidt
f6a616800e [POWERPC] Fix kernel stack allocation alignment
The powerpc kernel stacks need to be naturally aligned, as they
contain the thread info at the bottom, which is obtained by
clearing the low bits of the stack pointer.

However, when using 64K pages, the stack is smaller than a page,
so we use kmalloc to allocate it, but that doesn't provide the
alignment guarantee we need.

It appeared to work so far... until one enables SLUB debugging
which then returns unaligned pointers.  Ooops...

This fixes it by using a slab cache with enforced alignment.  It
relies on my previous patch that adds a thread_info_cache_init()
callback.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-24 20:57:33 +10:00
Michael Ellerman
e988a13960 [POWERPC] Add include of linux/of.h to os-area.c
os-area.c requires routines declared in linux/of.h, so should include it.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-24 20:57:33 +10:00
Michael Ellerman
6df1646e31 [POWERPC] Add include of linux/of.h to numa.c
numa.c requires routines declared in linux/of.h, so should include it.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-24 20:57:32 +10:00
Paul Mackerras
36a23fc8aa Merge branch 'powerpc-next' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc 2008-04-24 20:57:20 +10:00
Paul Mackerras
df69869034 Revert "[POWERPC] Add compat handler for PTRACE_GETSIGINFO"
This reverts commit e4cc58944c, as
requested by Roland McGrath, because compat_ptrace_request (added in
commit e16b278164, "ptrace:
compat_ptrace_request siginfo") now handles this case.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-24 14:05:15 +10:00
Linus Torvalds
bda0c0afa7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6: (42 commits)
  PCI: Change PCI subsystem MAINTAINER
  PCI: pci-iommu-iotlb-flushing-speedup
  PCI: pci_setup_bridge() mustn't be __devinit
  PCI: pci_bus_size_cardbus() mustn't be __devinit
  PCI: pci_scan_device() mustn't be __devinit
  PCI: pci_alloc_child_bus() mustn't be __devinit
  PCI: replace remaining __FUNCTION__ occurrences
  PCI: Hotplug: fakephp: Return success, not ENODEV, when bus rescan is triggered
  PCI: Hotplug: Fix leaks in IBM Hot Plug Controller Driver - ibmphp_init_devno()
  PCI: clean up resource alignment management
  PCI: aerdrv_acpi.c: remove unneeded NULL check
  PCI: Update VIA CX700 quirk
  PCI: Expose PCI VPD through sysfs
  PCI: iommu: iotlb flushing
  PCI: simplify quirk debug output
  PCI: iova RB tree setup tweak
  PCI: parisc: use generic pci_enable_resources()
  PCI: ppc: use generic pci_enable_resources()
  PCI: powerpc: use generic pci_enable_resources()
  PCI: ia64: use generic pci_enable_resources()
  ...
2008-04-21 15:58:35 -07:00
Linus Torvalds
9a64388d83 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (202 commits)
  [POWERPC] Fix compile breakage for 64-bit UP configs
  [POWERPC] Define copy_siginfo_from_user32
  [POWERPC] Add compat handler for PTRACE_GETSIGINFO
  [POWERPC] i2c: Fix build breakage introduced by OF helpers
  [POWERPC] Optimize fls64() on 64-bit processors
  [POWERPC] irqtrace support for 64-bit powerpc
  [POWERPC] Stacktrace support for lockdep
  [POWERPC] Move stackframe definitions to common header
  [POWERPC] Fix device-tree locking vs. interrupts
  [POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const
  [POWERPC] Remove unused __max_memory variable
  [POWERPC] Simplify xics direct/lpar irq_host setup
  [POWERPC] Use pseries_setup_i8259_cascade() in pseries_mpic_init_IRQ()
  [POWERPC] Turn xics_setup_8259_cascade() into a generic pseries_setup_i8259_cascade()
  [POWERPC] Move xics_setup_8259_cascade() into platforms/pseries/setup.c
  [POWERPC] Use asm-generic/bitops/find.h in bitops.h
  [POWERPC] 83xx: mpc8315 - fix USB UTMI Host setup
  [POWERPC] 85xx: Fix the size of qe muram for MPC8568E
  [POWERPC] 86xx: mpc86xx_hpcn - Temporarily accept old dts node identifier.
  [POWERPC] 86xx: mark functions static, other minor cleanups
  ...
2008-04-21 15:50:49 -07:00
Kumar Gala
fc215fe7e6 [POWERPC] ppc32: Fix errata for 603 CPUs
603 CPUs have the same issue that some 750 CPUs have in that they can crash
in funny ways if a store from an FPU register instruction is executed on a
register that has never been initialized since power on.  This patch fixes
it by making sure all FP registers have been properly initialized at kernel
boot.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-21 15:00:32 -05:00
Bjorn Helgaas
7cfb5f9aae PCI: powerpc: use generic pci_enable_resources()
Use the generic pci_enable_resources() instead of the arch-specific code.
The generic version is functionally equivalent, but uses dev_printk.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:47:05 -07:00
Greg Kroah-Hartman
8a1bc9013a PCI: add is_added flag to struct pci_dev
This lets us check if the device is really added to the driver core or
not, which is what we need when walking some of the bus lists.  The flag
is there in anticipation of getting rid of the other PCI device list,
which is what we used to check in this situation.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20 21:47:00 -07:00
Roland McGrath
9c0c44dbd9 [POWERPC] Define copy_siginfo_from_user32
Define the copy_siginfo_from_user32 entry point for powerpc, so
that generic CONFIG_COMPAT code can call it.  We already had the
code rolled into compat_sys_rt_sigqueueinfo, this just moves it
out into the canonical function that other arch's define.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-20 13:03:36 +10:00
Andreas Schwab
e4cc58944c [POWERPC] Add compat handler for PTRACE_GETSIGINFO
Current versions of gdb require a working implementation of
PTRACE_GETSIGINFO for proper watchpoint support.  Since struct siginfo
contains pointers it must be converted when passed to a 32-bit debugger.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-20 13:03:36 +10:00
Matthew Wilcox
950e4da324 arch: Remove unnecessary inclusions of asm/semaphore.h
None of these files use any of the functionality promised by
asm/semaphore.h.  It's possible that they rely on it dragging in some
unrelated header file, but I can't build all these files, so we'll have
fix any build failures as they come up.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
2008-04-18 22:14:49 -04:00
Linus Torvalds
334d094504 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.26
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.26: (1090 commits)
  [NET]: Fix and allocate less memory for ->priv'less netdevices
  [IPV6]: Fix dangling references on error in fib6_add().
  [NETLABEL]: Fix NULL deref in netlbl_unlabel_staticlist_gen() if ifindex not found
  [PKT_SCHED]: Fix datalen check in tcf_simp_init().
  [INET]: Uninline the __inet_inherit_port call.
  [INET]: Drop the inet_inherit_port() call.
  SCTP: Initialize partial_bytes_acked to 0, when all of the data is acked.
  [netdrvr] forcedeth: internal simplifications; changelog removal
  phylib: factor out get_phy_id from within get_phy_device
  PHY: add BCM5464 support to broadcom PHY driver
  cxgb3: Fix __must_check warning with dev_dbg.
  tc35815: Statistics cleanup
  natsemi: fix MMIO for PPC 44x platforms
  [TIPC]: Cleanup of TIPC reference table code
  [TIPC]: Optimized initialization of TIPC reference table
  [TIPC]: Remove inlining of reference table locking routines
  e1000: convert uint16_t style integers to u16
  ixgb: convert uint16_t style integers to u16
  sb1000.c: make const arrays static
  sb1000.c: stop inlining largish static functions
  ...
2008-04-18 18:02:35 -07:00
Linus Torvalds
188da98800 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (58 commits)
  ide: remove ide_init_default_irq() macro
  ide: move default IDE ports setup to ide_generic host driver
  ide: remove obsoleted "idex=noprobe" kernel parameter (take 2)
  ide: remove needless hwif->irq check from ide_hwif_configure()
  ide: init hwif->{io_ports,irq} explicitly in legacy VLB host drivers
  ide: limit legacy VLB host drivers to alpha, x86 and mips
  cmd640: init hwif->{io_ports,irq} explicitly
  cmd640: cleanup setup_device_ptrs()
  ide: add ide-4drives host driver (take 3)
  ide: remove ppc ifdef from init_ide_data()
  ide: remove ide_default_io_ctl() macro
  ide: remove CONFIG_IDE_ARCH_OBSOLETE_INIT
  ide: add CONFIG_IDE_ARCH_OBSOLETE_DEFAULTS (take 2)
  ppc/pmac: remove no longer needed IDE quirk
  ppc: don't include <linux/ide.h>
  ppc: remove ppc_ide_md
  ppc/pplus: remove ppc_ide_md.ide_init_hwif hook
  ppc/sandpoint: remove ppc_ide_md hooks
  ppc/lopec: remove ppc_ide_md hooks
  ppc/mpc8xx: remove ppc_ide_md hooks
  ...
2008-04-18 08:39:24 -07:00
David S. Miller
1e42198609 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-04-17 23:56:30 -07:00
Benjamin Herrenschmidt
945feb174b [POWERPC] irqtrace support for 64-bit powerpc
This adds the low level irq tracing hooks to the powerpc architecture
needed to enable full lockdep functionality.

This is partly based on Johannes Berg's initial version.  I removed
the asm trampoline that isn't needed (thus improving performance) and
modified all sorts of bits and pieces, reworking most of the assembly,
etc...

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-18 15:38:47 +10:00
Christoph Hellwig
fd3e0bbc60 [POWERPC] Stacktrace support for lockdep
This adds stacktrace support for powerpc, which will be needed for
lockdep.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-18 15:37:19 +10:00
Benjamin Herrenschmidt
ec2b36b9f2 [POWERPC] Move stackframe definitions to common header
This moves various definitions used all over the place to parse stack
frames to ptrace.h so only one definition is needed.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-18 15:37:18 +10:00
Benjamin Herrenschmidt
f4ac7b5eb7 [POWERPC] Fix device-tree locking vs. interrupts
Lockdep found out that we can occasionally take the device-tree
lock for reading from softirq time (from rtas_token called
by the rtas real time clock code called by the NTP code),
while we take it occasionally for writing without masking
interrupts. The combination of those two can thus deadlock.

While some of those cases of interrupt read lock could be fixed
(such as caching the RTAS tokens) I figured that taking the
lock for writing is so rare (device-tree modification) that we
may as well penalize that case and allow reading from interrupts.

Thus, this turns all the writers to take the lock with irqs
masked to avoid the situation.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-18 15:37:16 +10:00
Olof Johansson
49a9997884 [POWERPC] Remove unused __max_memory variable
Remove the __max_memory variable, as it is not referenced anywhere
in the tree besides some code in arch/ppc.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-18 15:37:11 +10:00
Michael Ellerman
1af9fa8994 [POWERPC] Simplify xics direct/lpar irq_host setup
The xics code currently has a direct and lpar variant of
xics_host_map, the only difference being which irq_chip they use.  If
we remember which irq_chip we're using we can combine these two
routines.  That also allows us to have a single irq_host_ops instead
of two.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-18 15:36:11 +10:00
Michael Ellerman
f01567d6d5 [POWERPC] Use pseries_setup_i8259_cascade() in pseries_mpic_init_IRQ()
pseries_mpic_init_IRQ() implements the same logic as the xics code did to
find the i8259 cascade irq.  Now that we've pulled that logic out into
pseries_setup_i8259_cascade() we can use it in the mpic code.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-18 15:36:10 +10:00
Michael Ellerman
30d6ad251b [POWERPC] Turn xics_setup_8259_cascade() into a generic pseries_setup_i8259_cascade()
Remove the xics references from xics_setup_8259_cascade(), and merge the
good bits from the almost identical logic in pseries_mpic_init_IRQ().

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-18 15:36:10 +10:00
Michael Ellerman
032ace7e17 [POWERPC] Move xics_setup_8259_cascade() into platforms/pseries/setup.c
The code in xics.c to setup the i8259 cascaded irq handler is not really
xics specific, so move it into setup.c - we will clean this up further in
a subsequent patch.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-18 15:36:10 +10:00
Paul Mackerras
11a55f2274 Merge branch 'powerpc-next' of master.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc 2008-04-18 13:34:30 +10:00
Paul Mackerras
858c52d15f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jk/spufs 2008-04-18 13:33:43 +10:00
Bartlomiej Zolnierkiewicz
359c2e2d20 ppc/pmac: remove no longer needed IDE quirk
IDE PMAC host driver and all IDE PCI host drivers use pci_enable_device()
nowadays so the following quirk in pmac_pcibios_after_init() can be removed.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-18 00:46:32 +02:00
Bartlomiej Zolnierkiewicz
1d850bd0b2 ppc: remove ppc_ide_md
* Add special cases for pplus and prep to ide_default_{irq,io_base}()
  (+ FIXMEs about the need to use IDE platform host driver instead).

* Remove no longer needed ppc_ide_md and struct ide_machdep_calls.

* Then remove <linux/ide.h> include from:
  - arch/powerpc/kernel/setup_32.c
  - arch/ppc/kernel/ppc_ksyms.c
  - arch/ppc/kernel/setup.c
  - arch/ppc/platforms/pplus.c
  - arch/ppc/platforms/prep_setup.c

There should be no functional changes caused by this patch.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-18 00:46:32 +02:00
Bartlomiej Zolnierkiewicz
5c58666fae ppc/pmac: remove ppc_ide_md hooks
* Add pmac_ide_init_ports() helper and use it instead of
  pmac_ide_init_hwif_ports().

* Remove ppc_ide_md hooks - no need for them
  (IDE pmac host driver takes care of all this setup).

* Then remove no longer needed <linux/ide.h> include
  from arch/powerpc/platforms/powermac/pmac.h.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-18 00:46:29 +02:00
Anton Vorontsov
1a9ebc0cd2 [POWERPC] 83xx: mpc8315 - fix USB UTMI Host setup
Currently USB Host isn't functional on the MPC8315E boards, for two
reasons as described below.

MPC8315 Reference Manual says:
"The USB DR unit must have the same clock ratio as the encryption core
unit, unless one of them has its clock disabled."

The encryption core also drives I2C clock, so it is enabled and is equal
to 01. That means USBDRCM should be 01 here.

Plus, according to MPC8315E-RDB schematics, USB unit consumes CLK_IN
clock from the 24.00MHz oscillator, which means we must adjust REFSEL
bits as well.

p.s.
Idially we should rework whole 83xx/usb.c code, in two steps:
1. Move SCCR code to the U-Boot;
2. Implement fsl,usb-clock property in the device tree, so usb.c could
   decide what clock exactly to use on per-board basis.

Though, today we're not in a hurry since there is just one 8315e board
out there.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 09:52:50 -05:00
Haiying Wang
8bdf573334 [POWERPC] 85xx: Fix the size of qe muram for MPC8568E
MPC8568E has 64K byte MURAM, so the size should be 0x10000, not 0xc000.

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 09:52:18 -05:00
Paul Gortmaker
16787b430d [POWERPC] 86xx: mpc86xx_hpcn - Temporarily accept old dts node identifier.
As suggested by Timur Tabi, we match on the old compat node ID for one
version and warn accordingly.  If we don't do this, we plunge people who
try to use an old DTB into silent boot death with no clear indication of
what the problem is.

This patch should be removed at the beginning of the 2.6.27 dev cycle.
It is only meant to ease the transition in the short term.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 09:51:59 -05:00
Paul Gortmaker
06f35b4ba6 [POWERPC] 86xx: mark functions static, other minor cleanups
Cleanups as suggested by Stephen Rothwell and Dale Farnsworth, which
incudes marking a bunch of functions static and add a vendor prefix to
the compat node check for uniqueness.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 09:51:29 -05:00
Timur Tabi
3a2f020c5a [POWERPC] Make rheap safe for spinlocks
The rheap allocation function, rh_alloc, could call kmalloc with GFP_KERNEL.
This can sleep, which means you couldn't hold a spinlock while called rh_alloc.
Change all kmalloc calls to use GFP_ATOMIC so that it won't sleep.  This is
safe because only small blocks are allocated.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 09:50:38 -05:00
Matthew Wilcox
64ac24e738 Generic semaphore implementation
Semaphores are no longer performance-critical, so a generic C
implementation is better for maintainability, debuggability and
extensibility.  Thanks to Peter Zijlstra for fixing the lockdep
warning.  Thanks to Harvey Harrison for pointing out that the
unlikely() was unnecessary.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
2008-04-17 10:42:34 -04:00
Kumar Gala
998c610363 [POWERPC] fsl: Convert dts to v1 syntax
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 09:40:48 -05:00
Kumar Gala
280bb34bc0 [POWERPC] 85xx: minor .dts cleanups
* remove #cpus from mpc8544ds.dts (not used anywhere else)
* remove memreserve from mpc8568mds.dts (not needed)

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:29:14 -05:00
Kumar Gala
32f960e943 [POWERPC] 85xx: Convert dts to v1 syntax
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:28:15 -05:00
Kumar Gala
a5dc66e2ab [POWERPC] 85xx: Fix compile warning
arch/powerpc/platforms/85xx/mpc85xx_ads.c: In function ‘init_ioports’:
arch/powerpc/platforms/85xx/mpc85xx_ads.c:168: warning: initialization discards qualifiers from pointer target type

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:41 -05:00
Kumar Gala
f9b9908cf9 [POWERPC] 83xx: Enable FCM NAND and OF partitions in defconfig
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:41 -05:00
Paul Gortmaker
81fad217b3 [POWERPC] 86xx: Add device tree source for Wind River SBC8641D
This adds in the device tree source for the SBC8641D, based
largely on the mpc8641_hpcn.dts.  The biggest differences are
the lack of a complex IRQ mapping (since no Uli/i8259 cascade)
and the different layout of devices on the localbus node.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:41 -05:00
Paul Gortmaker
1c37dca5e3 [POWERPC] 86xx: Add defconfig for Wind River SBC8641D board
This adds a sample defconfig for the Wind River SBC8641D
board, with SMP, PCI and NFS root enabled.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:41 -05:00
Paul Gortmaker
4e8aae89a3 [POWERPC] 86xx: Add support for Wind River SBC8641D board
This adds support for the Wind River SBC8641D board, based
largely on the mpc86xx_hpcn support.  The biggest difference is
the lack of the Uli and the i8259 cascade, which simplifies things.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:40 -05:00
Scott Wood
1e31de7aae [POWERPC] 83xx: mpc8313erdb - Enable FCM NAND and OF partitions in defconfig
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:40 -05:00
Scott Wood
378458d865 [POWERPC] cuboot-pq2: PCI fixes
1. Detect (and bail out on) more conditions that violate the
assumptions of the setup code -- we assume in such cases that the device
tree is correct and reflects what the firmware did.

2. The inbound memory mask calculation was wrong.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:40 -05:00
Scott Wood
3866409541 [POWERPC] fsl_soc: Factor fsl_get_sys_freq() out of the wdt and spi inits.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:40 -05:00
Anton Vorontsov
9c432797d3 [POWERPC] 83xx: mpc837x_rdb: add simple-bus compatible matching
This is needed to probe nor and nand flashes on the localbus.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:40 -05:00
Kumar Gala
4eaddb4d7e [POWERPC] Make Book-E debug handling SMP safe
global_dbcr0 needs to be a per cpu set of save areas instead of a single
global on all processors.

Also, we switch to using DBCR0_IDM to determine if the user space app is
being debugged as its a more consistent way.  In the future we should
support features like hardware breakpoint and watchpoints which will
have DBCR0_IDM set but not necessarily DBCR0_IC (single step).

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:40 -05:00
Scott Wood
3dd82a1ea7 [POWERPC] CPM: Always use new binding.
The kconfig entry can go away once arch/ppc and references to the config in
drivers are removed.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:40 -05:00
Anton Vorontsov
632395e19c [POWERPC] QE: fix sparse warnings
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:39 -05:00
Anton Vorontsov
7f0a6fc812 [POWERPC] QE: export qe_get_brg_clk()
qe_get_brg_clk() will be used by the fsl_gtm routines.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:39 -05:00
Anton Vorontsov
0b51b02edf [POWERPC] QE: implement qe_muram_offset
qe_muram_offset is the reverse of the qe_muram_addr, will be
used for the Freescale QE USB Host Controller driver.

This patch also moves qe_muram_addr into the qe.h header, plus
adds __iomem hints to use with sparse.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:39 -05:00
Anton Vorontsov
acaa7aa30a [POWERPC] fsl_lbc: implement few UPM routines
Freescale UPM can be used to adjust localbus timings or to generate
orbitrary, pre-programmed "patterns" on the external Localbus signals.
This patch implements few routines so drivers could work with UPMs in
safe and generic manner.

So far there is just one user of these routines: Freescale UPM NAND
driver.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:38 -05:00
Anton Vorontsov
56626f335b [POWERPC] QE: UCC nodes cleanup
- get rid of `model = "UCC"' in the ucc nodes
  It isn't used anywhere, so remove it. If we'll ever need something
  like this, we'll use compatible property instead.
- replace last occurrences of device-id with cell-index.
  Drivers are modified for backward compatibility's sake.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:38 -05:00
Laurent Pinchart
872a15deed [POWERPC] CPM2: Reset the CPM when early debugging is not enabled.
Similarly to what is done for PQ1-based platforms, this patch resets the
PQ2 Communication Processor Module in cpm2_reset() when early debugging is
not enabled. This helps avoiding conflicts when the boot loader configured
the CPM in an unexpected way.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:37 -05:00
Laurent Pinchart
0585fa5fb7 [POWERPC] ep8248e: Reference SMC parameter RAM base in the device tree.
This patch modifies the Embedded Planet EP8248E device tree to reference the
SMC paramater RAM base register instead of the parameter RAM allocated by the
boot loader.

The cpm_uart driver will allocate parameter RAM itself, making the serial port
initialisation independent of the boot loader.

The patch adds the parameter RAM allocated by the boot loader in the CPM muram
node, making it available to the kernel.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:37 -05:00
Laurent Pinchart
c2dd3529f3 [POWERPC] cpm-serial: Relocate CPM buffer descriptors and SMC parameter ram.
This patch relocates the buffer descriptors and the SMC parameter RAM at the
end of the first CPM muram chunk, as described in the device tree. This allows
device trees to stop excluding SMC parameter ram allocated by the boot loader
from the CPM muram node.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:37 -05:00
Laurent Pinchart
da0a5f0c65 [POWERPC] Add bootwrapper function to get virtual reg from the device tree.
This patch adds a new generic device tree processing function that retrieves
virtual reg addresses from the device tree to the bootwrapper code. It also
updates the bootwrapper code to use the new function.

dt_get_virtual_reg() retrieves the virtual reg addresses from the
"virtual-reg" property. If the property can't be found, it uses the "reg"
property and walks the tree to translate it to absolute addresses.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:37 -05:00
Sebastian Siewior
1028d4f162 [POWERPC] 85xx: Enable DMA engine on the MPC8544 DS
Add the device tree node for the DMA engine on 8544, publish
the device and enable the driver in the defconfig.

Signed-off-by: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:36 -05:00
Kumar Gala
370131c3f2 [POWERPC] 83xx/85xx: Reorganize defconfigs
Board specific defconfigs are useful, however with the ability to do
multi-board defconfigs they aren't needed in the top level configs directory

Move the 83xx/85xx board specific defconfigs to individual directories under
arch/powerpc/configs.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:36 -05:00
Kumar Gala
eb0cd5fd29 [POWERPC] Rework Book-E debug exception handling
The architecture allows for "Book-E" style debug interrupts to either go
to critial interrupts of their own debug interrupt level.  To allow for
a dynamic kernel to support machines of either type we want to be able to
compile in the interrupt handling code for both exception levels.

Towards this goal we renamed the debug handling macros to specify the
interrupt level in their name (DEBUG_CRIT_EXCEPTION/DebugCrit and
DEBUG_DEBUG_EXCEPTION/DebugDebug).

Additionally, on the Freescale Book-e parts we expanded the exception
stacks to cover the maximum case of needing three exception stacks (normal,
machine check and debug).

There is some kernel text space optimization to be gained if a kernel is
configured for a specific Freescale implementation but we aren't handling
that now to allow for the single kernel image support.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-04-17 01:01:36 -05:00
Andy Fleming
9d9326d3bc phy: Change mii_bus id field to a string
Having the id field be an int was making more complex bus topologies
excessively difficult.  For now, just convert it to a string, and
change all instances of "bus->id = val" to
snprintf(id, MII_BUS_ID_LEN, "%x", val).

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-04-16 20:09:35 -04:00
Kumar Gala
7711684947 [POWERPC] Remove unused machine call outs
When we moved to arch/powerpc we actively tried to avoid using the
ppc_md.setup_io_mappings().  Currently no board ports use it so let's
remove it to avoid any new boards using it.

Also, remove early_serial_map() since we don't even have a call out for
it in arch/powerpc.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 10:01:00 +10:00
Michael Ellerman
5faae2e5d1 [POWERPC] Always add preferred consoles in platforms/pseries/lpar.c
There is logic in platforms/peries/lpars.c which checks if the user has
specified a console on the command line, and refrains from adding a
preferred console entry for the hvc/hvsi console if they have.

This trips up if you use "netconsole=foo" on the command line, and has
the result that you get _only_ the netconsole, because the hvc device is
never added as a preferred console. Worse still if you get the netconsole
configuration wrong somehow, you end up with no console at all.

As it turns out we don't need to worry about checking the command line.
If the user has specified "console=foo", then foo will be set as the
preferred console when the command line is parsed in start_kernel(), much
later than the pseries code, and so the latter setting will take effect.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 10:00:59 +10:00
Michael Ellerman
21cf91338f [POWERPC] Move prototype for find_udbg_vterm() into a header file
Move the prototype for find_udbg_vterm() into pseries.h, removing
it from setup.c.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 10:00:59 +10:00
Manish Ahuja
37ddd5d053 [POWERPC] pseries/phyp dump: Reserve a variable amount of space at boot
This changes the way we calculate how much space to reserve for the
pHyp dump.  Currently we reserve 256MB only.  With this change, the
code first checks to see if an amount has been specified on the boot
command line with the "phyp_dump_reserve_size" option, and if so, uses
that much.

Otherwise it computes 5% of total ram and rounds it down to a multiple
of 256MB, and uses the larger of that or 256MB.

This is for large systems with a lot of memory (10GB or more).  The
aim is to have more space available for the kernel on reboot on
machines with more resources.  Although the dump will be collected
pretty fast and the memory released really early on allowing the
machine to have the full memory available, this alleviates any issues
that can be caused by having way too little memory on very very large
systems during those few minutes.

Signed-off-by: Manish Ahuja <mahuja@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:14 +10:00
Kumar Gala
b18796d32a [POWERPC] bootwrapper: Use physical address in PHDR for uImage
Now that we properly set the physical address in the program header of the
vmlinux ELF we can extract it to properly set the load and entry point for
u-boot uImages.  Before we always hard coded the load & entry point to 0.
However there are situations that the kernel may be built with a non-zero
physical address.

We use objdump to extract the PHDR.  We assume that there is only one
PHDR in the vmlinux of type LOAD.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:14 +10:00
Kumar Gala
366234f657 [POWERPC] Update linker script to properly set physical addresses
We can set LOAD_OFFSET and use the AT attribute on sections and the
linker will properly set the physical address of the LOAD program
header for us.

This allows us to know how the PHYSICAL_START the user configured a
kernel with by just looking at the resulting vmlinux ELF.

This is pretty much stolen from how x86 does things in their linker
scripts.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:14 +10:00
Kumar Gala
4846c5deb9 [POWERPC] Clean up some linker and symbol usage
* PAGE_OFFSET is not always the start of code, use _stext instead.
* grab PAGE_SIZE and KERNELBASE from asm/page.h like ppc64 does.  Makes the
  code a bit more common and provide a single place to manipulate the
  defines for things like kdump.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:13 +10:00
Kumar Gala
09b5e63f82 [POWERPC] Rename __initial_memory_limit to __initial_memory_limit_addr
We always use __initial_memory_limit as an address so rename it
to be clear.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:13 +10:00
Kumar Gala
0aef996b37 [POWERPC] 85xx: Cleanup TLB initialization
* Determine the RPN we are running the kernel at runtime rather
  than using compile time constant for initial TLB

* Cleanup adjust_total_lowmem() to respect memstart_addr and
  be a bit more clear on variables that are sizes vs addresses.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:13 +10:00
Kumar Gala
d7917ba705 [POWERPC] Introduce lowmem_end_addr to distinguish from total_lowmem
total_lowmem represents the amount of low memory, not the physical
address that low memory ends at.  If the start of memory is at 0 it
happens that total_lowmem can be used as both the size and the address
that lowmem ends at (or more specifically one byte beyond the end).

To make the code a bit more clear and deal with the case when the start of
memory isn't at physical 0, we introduce lowmem_end_addr that represents
one byte beyond the last physical address in the lowmem region.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:13 +10:00
Kumar Gala
99c62dd773 [POWERPC] Remove and replace uses of PPC_MEMSTART with memstart_addr
A number of users of PPC_MEMSTART (40x, ppc_mmu_32) can just always
use 0 as we don't support booting these kernels at non-zero physical
addresses since their exception vectors must be at 0 (or 0xfffx_xxxx).

For the sub-arches that support relocatable interrupt vectors
(book-e), it's reasonable to have memory start at a non-zero physical
address.  For those cases use the variable memstart_addr instead of
the #define PPC_MEMSTART since the only uses of PPC_MEMSTART are for
initialization and in the future we can set memstart_addr at runtime
to have a relocatable kernel.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:12 +10:00
Kumar Gala
1993cbf4ae [POWERPC] Provide access to arch/powerpc include path on ppc64
There does not appear to be any reason that we shouldn't just have
-Iarch/$(ARCH) on both ppc32 and ppc64 builds.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:12 +10:00
Kumar Gala
38521a23a9 [POWERPC] Remove Kconfig option BOOT_LOAD
Nothing appears to use BOOT_LOAD so remove it as a configurable option.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:12 +10:00
Adrian Bunk
3fbe9d413e [POWERPC] Add MODULE_LICENSE to powerpc/sysdev/rtc_cmos_setup.c
This adds the missing MODULE_LICENSE("GPL").

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:12 +10:00
David Woodhouse
7f4392cdcc [POWERPC] Efika: Really, don't pretend to be CHRP
Fedora 9 works on Efika without the separate 'device-tree supplement',
thanks to the kernel's own fixups. With one exception -- because 'CHRP'
still appears on the 'machine:' line in /proc/cpuinfo, the installer
misdetects the platform and misconfigures yaboot, putting it into a PReP
boot partition instead of in the /boot filesystem where the Efika's
firmware could find it.

The kernel's fixups for Efika already correct one instance of 'chrp', in
the 'device_type' property. This fixes it in the 'CODEGEN,description'
property too, since that's what's exposed to userspace in /proc/cpuinfo.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:12 +10:00
Anton Vorontsov
b7ce341585 [POWERPC] Implement support for the GPIO LIB API
This implements support for the GPIO LIB API.  Two calls are still
unimplemented though: irq_to_gpio and gpio_to_irq.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:11 +10:00
Benjamin Herrenschmidt
e6768a4f39 [POWERPC] Fixup softirq preempt count
This fixes the handling of the preempt count when switching
interrupt stacks so that HW interrupt properly get the softirq
mask copied over from the previous stack.

It also initializes the softirq stack preempt_count to 0 instead
of SOFTIRQ_OFFSET, like x86, as __do_softirq() does the increment,
and we hit some lockdep checks if we have it twice.

That means we do run for a little while off the softirq stack
with the preempt-count set to 0, which could be deadly if we
try to take a softirq at that point, however we do so with
interrupts disabled, so I think we are ok.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:11 +10:00
Benjamin Herrenschmidt
7c6352a469 [POWERPC] Initialize paca->current earlier
Currently, we initialize the "current" pointer in the PACA (which
is used by the "current" macro in the kernel) before calling
setup_system(). That means that early_setup() is called with
current still "NULL" which is -not- a good idea. It happens to
work so far but breaks with lockdep when early code calls printk.

This changes it so that all PACAs are statically initialized with
__current pointing to the init task. For non-0 CPUs, this is fixed
up before use.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17 07:46:10 +10:00
Ishizaki Kou
2fe37a6ec9 [POWERPC] celleb: Coding style cleanup
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>
2008-04-17 07:46:10 +10:00
Paul Mackerras
c7cd5b9807 Merge branch 'for-2.6.26' of master.kernel.org:/pub/scm/linux/kernel/git/olof/pasemi 2008-04-17 07:45:35 +10:00
Jerone Young
e92716f2aa [POWERPC] 4xx: Add idle wait support for 44x platforms
This changes the cpu_idle loop for 44x platforms to utilize the Wait Enable
feature of the CPU.  This helps virtulization solutions know when the guest
Linux kernel is in an idle state.

A command line option called "idle" is also added to allow people to change
the idle loop back to the original variation.  This is done by setting
"idle=spin" on the kernel command line.

Signed-off-by: Jerone Young <jyoung5@us.ibm.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-04-16 07:32:06 -05:00
Josh Boyer
478d5dcb62 [POWERPC] 4xx: Add ppc40x_defconfig
Add a multi-board PowerPC 40x defconfig file

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-04-16 07:31:57 -05:00
Josh Boyer
975386ee0e [POWERPC] 4xx: Reorganize 4xx defconfigs
Board specific defconfigs are useful, however with the ability to do
multi-board defconfigs they aren't needed in the top level configs directory.

Move the 4xx board specific defconfigs to individual directories under
arch/powerpc/configs.

Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-04-15 08:12:57 -05:00
Stephen Rothwell
f9a5e6a27d [POWERPC] iSeries: Localise and constify some iSeries data
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-15 21:21:25 +10:00
Stephen Rothwell
30ff2e87ed [POWERPC] iSeries: Make iseries_reg_save private to iSeries
Now that we have the alpaca, the reg_save_ptr is no longer needed in the
paca.  Eradicate all global uses of it and make it static in the iSeries
lpardata.c

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-15 21:21:25 +10:00
Stephen Rothwell
3eb9cf0761 [POWERPC] iSeries: Use alternate paca structure for booting
The iSeries HV only needs the first two fields of the paca statically
initialised, so create an alternate paca that contains only those and
switch to our real paca immediately after boot.

This is in order to make the 1024 cpu patches easier since they will no
longer have to statically initialise the pacas for iSeries.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-15 21:21:25 +10:00
Dale Farnsworth
a7e695f6bf [POWERPC] prpmc2800 needs a dtbImage
The prpmc2800 platform requires a zImage formatted file with an
embedded dtb file.  Rename the requested boot image file to
dtbImage.prpmc2800.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-15 21:21:25 +10:00
Dale Farnsworth
a0916bd64a [POWERPC] mv643xx_eth: Prepare to support multiple silicon blocks
The mv643xx_eth driver is being modified to support multiple instances
of the ethernet silicon block on the same platform.  Each block contains
a single register bank containing the registers for up to three ports
interleaved within that bank.  This patch updates the PowerPC OF to
platform_device glue code to support multiple silicon blocks, each
with up to three ethernet ports.  The main difference is that we now
allow multiple mv64x60_shared platform_devices to be registered and
we provide each port platform_device with a pointer to its associated
shared platform_device.  The pointer will not be used until the
mv643xx_eth driver changes are committed.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Acked-by: Mark Greer <mgreer@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-15 21:21:24 +10:00
Mark A. Greer
1791f91bc7 [POWERPC] prpmc2800: Clean up dts properties
Remove several unused (or software config only) properties.
Rename marvel node to "system-controller".  Also, rename the
"block-index" property to "cell-index" to conform to current
practice.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-15 21:21:24 +10:00
Dale Farnsworth
a05ce88ab3 [POWERPC] mv64x60: Remove device tree absolute path references
Replace several device node absolute path lookups in the mv64x60
bootwrapper code with lookups by compatible or device_type
properties.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-15 21:21:24 +10:00
Mark A. Greer
a1810b44c2 [POWERPC] mv64x60: Fix FDT compatible names: mv64x60 => mv64360
Compatible names should refer to a specific version of the hardware,
without wildcards.  Change each instance of mv64x60 to mv64360, which
is the oldest version we currently support.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-15 21:21:24 +10:00
Dale Farnsworth
fb9d93de60 [POWERPC] prpmc2800: Fix frequencies in prpmc2800.dts
After the conversion to dts v1 format, seeing the frequencies
in decimal made it obvious that some of them had been
incorrectly truncated.  This fixes them.  Note that the PCI
frequency comes from a different source and is documented
as 66MHz, so it was left at 66000000.

Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-15 21:21:23 +10:00
Mark A. Greer
d528be50c6 [POWERPC] prpmc2800: Convert DTS to v1 and add labels
Update the prpmc2800 DTS file to version 1 and add labels.
I verified that there was no change in the resulting dtb file.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Dale Farnsworth <dale@farnsworth.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-15 21:21:23 +10:00
Stephen Rothwell
53bcddb915 [POWERPC] Fix MAX_ORDER config problem
The allyesconfig (among others) build was giving this:

In file included from include/linux/gfp.h:4,
                 from include/linux/slab.h:14,
                 from include/linux/percpu.h:5,
                 from include2/asm/time.h:18,
                 from include2/asm/cputime.h:26,
                 from include/linux/sched.h:67,
                 from
arch/powerpc/kernel/asm-offsets.c:17:
include/linux/mmzone.h:791:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE

Kconfig options are order depenendent, so move the setting of
FORCE_MAX_ZONEORDER to after the setting of PPC_64K_PAGES. Also add an
explicit !PPC_64K_PAGES.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-15 21:21:23 +10:00
Paul Mackerras
320787c75c [POWERPC] Fix handling of unrecoverable SLB miss interrupts
If an SLB miss interrupt happens while the RI bit of MSR is zero, we
can't just return, because RI being zero indicates that SRR0/SRR1
potentially had live values in them, and the process of taking an
interrupt overwrites them.

This should never happen, but if it does, we try to print a nice oops
message.  That doesn't work, however, because the code at unrecov_slb
assumes that the MMU has been turned on, but we call it with the MMU
off (and have done so since the SLB miss handler was rewritten to run
without turning the MMU on) -- except on iSeries, where everything runs
with the MMU on.

This fixes it by adding the necessary code to turn the MMU on if
necessary.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-14 21:11:22 +10:00