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74887 commits

Author SHA1 Message Date
Paul Mackerras
2c0b713f70 Merge branch 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/cell-2.6 into for-2.6.25 2007-12-20 14:41:27 +11:00
Johannes Berg
f91266edba [POWERPC] powermac: Use generic suspend code
This adds platform_suspend_ops for PMU based machines, directly in
the PMU driver.  This allows suspending via /sys/power/state
on powerbooks.

The patch also replaces the PMU ioctl with a simple call to
pm_suspend(PM_SUSPEND_MEM).

Additionally, it cleans up some debug code.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-19 23:02:35 +11:00
Paul Mackerras
887ef35ae4 [POWERPC] Fix sleep on powerbook 3400
Sleep on the powerbook 3400 has been broken since the change that made
powerbook_sleep_3400 call pmac_suspend_devices(), which disables
interrupts.  There are a couple of loops in powerbook_sleep_3400 that
depend on interrupts being enabled, and in fact it has to have
interrupts enabled at the point of going to sleep since it is an
interrupt from the PMU that wakes it up.

This fixes it by using pmu_wait_complete() instead of a spinloop, and
by explicitly enabling interrupts before putting the CPU into sleep
mode (which is OK since all interrupts except the PMU interrupt have
been disabled at the interrupt controller by this stage).

This changes the logic so that it keeps putting the CPU into sleep mode
until the completion of the interrupt transaction from the PMU that
signals the end of sleep.  Also, we now call pmu_unlock() before sleep
so that the via_pmu_interrupt() code can process the interrupt event
from the PMU properly.

Now that generic code saves and restores PCI state, it is no longer
necessary to do that here.  Thus pbook_pci_save/restore and related
functions are no longer necessary, so this removes them.

Lastly, this moves the ioremap of the memory controller to init code
rather than doing it on every sleep/wakeup cycle.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-19 22:45:31 +11:00
Paul Mackerras
98f6740ea6 [POWERPC] Convert therm_windtunnel.c to use the kthread API
This is fairly straightforward, and lets us get rid of x.completion
as well.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-19 15:22:02 +11:00
Paul Mackerras
39d183d877 [POWERPC] Convert therm_pm72.c to use the kthread API
This converts the therm_pm72.c driver to use the kthread API.  I
thought about making it use kthread_stop() instead of the `state'
variable and the `ctrl_complete' completion, but that isn't simple and
will require changing the way that `state' is used.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-19 15:22:02 +11:00
Paul Mackerras
c61dace9a1 [POWERPC] Convert adb.c to use kthread API and not spin on ADB requests
This converts adb.c to use the kthread API.

It also changes adb_request so that if the ADBREQ_SYNC flag is
specified, we now sleep waiting for the request to finish using an
on-stack completion rather than spinning.  To implement this, we now
require that if the ADBREQ_SYNC flag is set, the `done' parameter must
be NULL.  All of the existing callers of adb_request that pass
ADBREQ_SYNC appear to be in process context and have done == NULL.
Doing this allows us to get rid of an awful hack in adb_request()
where we used to test whether the request was coming from the adb
probe task and use a completion if it was, and otherwise spin.

This also gets rid of a static request block that was used if the req
parameter to adb_request was NULL.  None of the callers do that any
more, so the static request block is no longer necessary.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-19 15:22:02 +11:00
Paul Mackerras
33f6e79406 [POWERPC] Convert media-bay.c to use the kthread API
We aren't supposed to use kernel_thread directly in drivers any more,
and in fact using kthread_run is a bit simpler.

Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-19 15:22:02 +11:00
Johannes Berg
b819a9bfc7 [POWERPC] via-pmu: Kill sleep notifiers completely
This kills off the remnants of the old sleep notifiers now that they
are no longer used.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-19 15:00:59 +11:00
Johannes Berg
c9f6d3d5c6 [POWERPC] adb: Replace sleep notifier with platform driver suspend/resume hooks
This replaces the pmu sleep notifier that adb had with suspend/resume
hooks in a new platform driver/device.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-19 15:00:29 +11:00
Jeremy Kerr
1e7710390f [POWERPC] cell: catch errors from sysfs_create_group()
We're currently getting a warning from not checking the result of
sysfs_create_group, which is declared as __must_check.

This change introduces appropriate error-handling for
spu_add_sysdev_attr_group()

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19 01:00:06 +01:00
Jeremy Kerr
684bd61401 [POWERPC] cell: handle SPE kernel mappings that cross segment boundaries
Currently, we have a possibilty that the SLBs setup during context
switch don't cover the entirety of the necessary lscsa and code
regions, if these regions cross a segment boundary.

This change checks the start and end of each region, and inserts a SLB
entry for each, if unique. We also remove the assumption that the
spu_save_code and spu_restore_code reside in the same segment, by using
the specific code array for save and restore.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19 01:00:05 +01:00
Jeremy Kerr
f6eb7d7ffe [POWERPC] cell: add spu_64k_pages_available() check
Add a function spu_64k_pages_available(), so that we can abstract the
explicity use of mmu_psize_defs() in lssca_alloc.c

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19 01:00:05 +01:00
Jeremy Kerr
4d43466d56 [POWERPC] cell: use spu_load_slb for SLB setup
Now that we have a helper function to setup a SPU SLB, use it for
__spu_trap_data_seq.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19 01:00:04 +01:00
Jeremy Kerr
58bd403c3c [POWERPC] cell: handle kernel SLB setup in spu_base.c
Currently, the SPU context switch code (spufs/switch.c) sets up the
SPU's SLBs directly, which requires some low-level mm stuff.

This change moves the kernel SLB setup to spu_base.c, by exposing
a function spu_setup_kernel_slbs() to do this setup. This allows us
to remove the low-level mm code from switch.c, making it possible
to later move switch.c to the spufs module.

Also, add a struct spu_slb for the cases where we need to deal with
SLB entries.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19 01:00:04 +01:00
Andre Detsch
a0a7ae8939 [POWERPC] cell: safer of_has_vicinity routine
This patch changes the way we check for the existence of
vicinity property in spe device nodes.

The new implementation does not depend on having an initialized
cbe_spu_info[0].spus, and checks for presence of vicinity in all
nodes, not only in the first one.

Signed-off-by: Andre Detsch <adetsch@br.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19 01:00:03 +01:00
Jeremy Kerr
3ce2f62b05 [POWERPC] cell: export force_sig_info()
Export force_sig_info to allow signals to be sent from a modular spufs.

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19 01:00:03 +01:00
Jon Loeliger
d8caf74f1b [POWERPC] cell: Convert #include of asm/of_{platform, device}.h into linux/of_{platform, device}.h.
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19 01:00:02 +01:00
Ishizaki Kou
23666ebc15 [POWERPC] cell: add missing '\n'
Two printk() calls were missing the terminating '\n'.

Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19 01:00:02 +01:00
Bob Nelson
a1ef4849fd [POWERPC] OProfile: fix cbe pm signal routing problem
Fix debug_bus_control and group_control PMU register values set up in
set_pm_event().  Initialize variables before calling set_pm_event().
Delete unused static array and code that initialized it.
Rename constant to better reflect usage.

Signed-off-by: Bob Nelson <rrnelson@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19 01:00:01 +01:00
Kevin Corry
29641ce165 [POWERPC] perfmon2: make pm_interval register read/write
The pm_interval register in the Cell PMU is read/write, but was implemented in
the kernel as write-only. Previously, the written value was saved in a "shadow"
copy so calls to cbe_read_pm() could return the value.

Perfmon2 needs to be able to read the current values of pm_interval, so change
cbe_read_pm() to read the actual register instead of the "shadow" copy. There
is currently no code in the kernel that tries to read the pm_interval register
with cbe_read_pm() (expecting to receive the "shadow" value), so this should
not break any existing code.

Signed-off-by: Kevin Corry <kevcorry@us.ibm.com>
Signed-off-by: Carl Love <carll@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2007-12-19 01:00:01 +01:00
Timur Tabi
9fb1e350e1 [POWERPC] ucc_geth: use rx-clock-name and tx-clock-name device tree properties
Updates the ucc_geth device driver to check the new rx-clock-name and
tx-clock-name properties first.  If present, it uses the new function
qe_clock_source() to obtain the clock source.  Otherwise, it checks the
deprecated rx-clock and tx-clock properties.

Update the device trees for 832x, 836x, and 8568 to contain the new property
names only.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-14 01:16:58 -06:00
Timur Tabi
174b0da231 [POWERPC] qe: add function qe_clock_source()
Add function qe_clock_source() which takes a string containing the name of a
QE clock source (as is typically found in device trees) and returns the
matching enum qe_clock value.

Update booting-without-of.txt to indicate that the UCC properties rx-clock
and tx-clock are deprecated and replaced with rx-clock-name and tx-clock-name,
which use strings instead of numbers to indicate QE clock sources.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-13 22:59:27 -06:00
Scott Wood
255b09eb26 [POWERPC] 83xx: mpc8313erdb: Fix whitespace.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-13 22:52:45 -06:00
Scott Wood
8129a59a53 [POWERPC] 83xx: mpc834x_mds: Fix whitespace and call of_platform_bus_probe().
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-13 22:52:32 -06:00
Jochen Friedrich
362f9b6fa8 [POWERPC] Move CPM command handling into the cpm drivers
This patch moves the CPM command handling into commproc.c
for CPM1 and cpm2_common.c. This is yet another preparation
to get rid of drivers accessing the CPM via the global cpmp.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
2007-12-13 22:47:16 -06:00
Jochen Friedrich
721c0c8af1 [POWERPC] Add support for PORTA and PORTB odr registers
PORTA and PORTB have odr registers, as well. However, the PORTB odr
register is only 16bit.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
2007-12-13 22:46:42 -06:00
Scott Wood
0b5cf10691 [POWERPC] 8xx: Convert mpc866ads to the new device binding.
Verified on mpc866ads. This version has muram and brg nodes added to dts
to get the things work.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
2007-12-13 22:45:35 -06:00
Li Yang
77d4309e19 [POWERPC] ipic: ack only for edge interrupts
Only external interrupts in edge detect mode support ack operation.
Therefore, in most cases ack is not needed.  The patch makes ipic
ack only when it's needed.  This could boost over all system performance.

Signed-off-by: Li Yang <leoli@freescale.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-12 01:53:07 -06:00
Kumar Gala
ea082fa94e [POWERPC] FSL: Added aliases node to device trees
Added aliases nodes for kurobox, 83xx, 85xx, and 86xx platforms.
This included added labels and cell-index properties for serial and
pci nodes.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-12 01:51:03 -06:00
Kumar Gala
e77b28eb19 [POWERPC] FSL: enet device tree cleanups
* Removed address fields in ethernet nodes
* Removed #address-cells, #size-cells from gianfar nodes
* Added cell-index to gianfar and ucc ethernet nodes
* Added enet[0..3] labels
* Renamed compatible node for gianfar mdio to "fsl,gianfar-mdio"
* Removed device_type = "mdio"

The matching for gianfar mdio still supports the old "mdio"/"gianfar" combo
but it is now considered deprecated.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-12 01:50:45 -06:00
Kumar Gala
ec9686c4a5 [POWERPC] FSL: I2C device tree cleanups
* Removed device_type = "i2c"
* Added missing second I2C controller on MPC8548 CDS, MPC8544 DS
* Added #address-cells, #size-cells, and cell-index where missing

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 23:17:24 -06:00
Jon Loeliger
1c1d1672b6 [POWERPC] 86xx: Add aliases node to 8641hpcn DTS file.
The addition of the aliases node is needed for U-Boot
and, eventually, cuImage, to help locate the proper
nodes reliably when using the libfdt approach.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 13:57:18 -06:00
Timur Tabi
7264ec4454 [POWERPC] QE: change qe_setbrg() to take an enum qe_clock instead of an integer
qe_setbrg() currently takes an integer to indicate the BRG number.  Change that
to take an enum qe_clock instead, since this enum is intended to represent
clock sources.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 13:57:18 -06:00
Timur Tabi
c5eeb55999 [POWERPC] 86xx: fix guts_set_dmacr() and add guts_set_pmuxcr_dma() to immap_86xx.h
Updated guts_set_dmacr() to enumerate the DMA controllers at 0, instead of 1,
so that it now matches other related functions.  Added function
guts_set_pmuxcr_dma() to set the external DMA control bits in the PMUXCR
register of the global utilities structure.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 13:57:18 -06:00
Li Yang
41bad27ff7 [POWERPC] 83xx: Add MPC837x MDS default kernel configuration
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 13:57:18 -06:00
Li Yang
833e31e736 [POWERPC] 83xx: Add platform support for MPC837x MDS board
The MPC837x MDS is a new member of Freescale MDS reference system.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 13:57:18 -06:00
Li Yang
f03ca957fa [POWERPC] ipic: add new interrupts introduced by new chip
These interrupts are introduced by the latest Freescale SoC
such as MPC837x.

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 13:57:18 -06:00
Li Yang
a58d52443f [POWERPC] add e300c4 entry to cputable
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 13:57:17 -06:00
Jon Loeliger
882407b979 [POWERPC] 8xxx: Convert #include of asm/of_{platform, device}.h into linux/of_{platform, device}.h.
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 13:57:17 -06:00
Kumar Gala
c1469f13de [POWERPC] Emulate isel (Integer Select) instruction
isel (Integer Select) is a new user space instruction in the
PowerISA 2.04 spec.  Not all processors implement it so lets emulate
to ensure code built with isel will run everywhere.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 13:57:16 -06:00
Kumar Gala
fd351b8920 [POWERPC] Add SPRN for Embedded registers specified in PowerISA 2.04
* Added SPRN for new architectural features added for embedded:
	- Alternate Time Base (ATB, ATBL, ATBU)
	- Doorbell Interrupts (IVOR36, IVOR37)
	- SPRG8/9
	- External Proxy (EPR)
	- External PID load/store (EPLC, EPSC)

* Added BUCSR for Freescale Embedded Processors
* Moved around MAS7 so its in numeric order

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-12-11 13:57:16 -06:00
Benjamin Herrenschmidt
7ee17466b6 [POWERPC] Early debug forces console log level to max
This makes the early debug option force the console loglevel
to the max.  The early debug option is meant to catch messages very
early in the kernel boot process, in many cases, before the kernel
has a chance to parse the "debug" command line argument.  Thus it
makes sense when CONFIG_PPC_EARLY_DEBUG is set, to force the console
log level to the max at boot time.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11 15:43:35 +11:00
Benjamin Herrenschmidt
837c54db21 [POWERPC] Add of_translate_dma_address
This adds a variant of of_translate_address that uses the dma-ranges
property instead of "ranges", it's to be used by PCI code in parsing
the dma-ranges property.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11 15:43:35 +11:00
Benjamin Herrenschmidt
f276b5ba0d [POWERPC] Remove useless volatiles in udbg_16550.c
This removes "volatile" from the MMIO pointer udbg_comport
in udbg_16550.c driver, it's useless and makes checkpatch.pl
complain when adding things to this file.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11 15:43:35 +11:00
Benjamin Herrenschmidt
6d39635959 [POWERPC] Change 32-bit PCI message about resource allocation
The 32 bits PCI code will display a rather scary error message

   PCI: Cannot allocate resource region N of device XXX

at boot when the existing setup of a device as left by the
firmware doesn't match the kernel needs and the device needs
to be moved.  This is often not an error at all, as the kernel
will generally easily reallocate the device elsewhere.

This changes the message to something less scary and lowers
its level from error to warning.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11 15:43:35 +11:00
Benjamin Herrenschmidt
05d3957e11 [POWERPC] Fix powerpc 32-bit resource fixup for 64-bit resources
The 32-bit powerpc resource fixup code uses unsigned longs to do the
offsetting of resources which overflows on platforms such as 4xx where
resources can be 64 bits.

This fixes it by using resource_size_t instead.

However, the IO stuff does rely on some 32 bits arithmetic, so we hack
by cropping the result of the fixups for IO resources with a 32 bits
mask.

This isn't the prettiest but should work for now until we change the
32 bits PCI code to do IO mappings like 64 bits does, within a reserved
are of the kernel address space.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11 15:43:35 +11:00
Benjamin Herrenschmidt
13dccb9e65 [POWERPC] Merge pci_process_bridge_OF_ranges()
This merges the 32-bit and 64-bit implementations of
pci_process_bridge_OF_ranges().  The new function is cleaner than both
the old ones, and supports 64 bits ranges on ppc32 which is necessary
for the 4xx port.

It also adds some better (hopefully) output to the kernel log which
should help diagnose problems and makes better use of existing OF
parsing helpers (avoiding a few bugs of both implementations along
the way).

There are still a few unfortunate ifdef's but there is no way around
these for now at least not until some other bits of the PCI code are
made common.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11 15:43:35 +11:00
Benjamin Herrenschmidt
25e81f925d [POWERPC] Make isa_mem_base common to 32 and 64 bits
This defines isa_mem_base on both 32 and 64 bits (it used to be 32 bits
only).  This avoids a few ifdef's in later patches and potentially can
allow support for VGA text mode on 64 bits powerpc.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11 15:43:34 +11:00
Paul Mackerras
cfad589f56 Merge branch 'linux-2.6' into for-2.6.25 2007-12-11 15:30:27 +11:00
Michael Hanselmann
bc625f20c0 [POWERPC] Update smu command definitions
This updates smu.h with several new commands, and adds parameter
descriptions for existing commands.

Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-11 13:48:34 +11:00