Commit Graph

182 Commits

Author SHA1 Message Date
Russell King 46c41e62a1 [ARM] pxa: move platform devices to separate header file
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:21 +01:00
Russell King 34f3231f43 [ARM] pxa: move device registration into CPU-specific file
This allows individual CPU support to determine which platform
devices should be registered.  Also fix a copy-n-paste bug in
the I2C power platform device entry.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:21 +01:00
Russell King 4adb70fc1b [ARM] pxa: remove boot time RTC initialisation
The RTC library code contains everything necessary to set the
system time from the RTC; for similar reasons as the previous
commit, it's far better to let the RTC library code sort this
out rather than implement something which might not be
appropriate for everyone.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:17 +01:00
Russell King 2aca0a8657 [ARM] pxa: stop doing our own rtc management over suspend
Remove the RTC management over a suspend/resume cycle.  Firstly,
we may not be using the internal RTC for time keeping; some
platforms have an external RTC for this inspite of the PXA having
an internal RTC.  Secondly, the RTC library code handles updating
system time on resume.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:16 +01:00
Eric Miao f53f066c25 [ARM] 4451/1: pxa: make dma.c generic and remove cpu specific dma code
Since the number of dma channels varies between pxa25x and pxa27x, it
introduces some specific code in dma.c. This patch moves the specific
code to pxa25x.c and pxa27x.c and makes dma.c more generic.

1. add pxa_init_dma() for dma initialization, the number of channels
   are passed in by the argument

2. add a "prio" field to the "struct pxa_dma_channel" for the channel
   priority, and is initialized in pxa_init_dma()

3. use a general priority comparison with the channels "prio" field so
   to remove the processor specific pxa_for_each_dma_prio macro,  this
   is not lightning fast as the original one,  but it is acceptable as
   it happens when requesting dma, which is usually not so performance
   critical

Signed-off-by: eric miao <eric.miao@marvell.com>
Acked-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:16 +01:00
Eric Miao cd49104d99 [ARM] 4450/1: pxa: add pxa25x_init_irq() and pxa27x_init_irq()
/* should be ok this time, I aligned this patch to your arm:pxa2.mbox */

1. move pxa25x specific IRQ initialization code to pxa25x_init_irq()
and pxa27x code to pxa27x_init_irq(), remove pxa_init_irq()

2. replace all pxa_init_irq() with their PXA25x or PXA27x specific
functions

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:15 +01:00
Eric Miao 4a3dcd35c8 [ARM] 4438/1: PXA: remove #ifdef .. #endif from pxa_gpio_demux_handler()
1. use GPIO_IRQ_mask[] to select those bits of interest, actually
   only those "unmasked" GPIO IRQs with their corresponding bits
   in GPIO_IRQ_mask[] set to "1" should be checked

2. remove #ifdef PXA_LAST_GPIO > 96 .. #endif, GPIO_IRQ_mask[]
   is used to mask out the irrelevant bits, so that even though
   the GEDR3 on PXA25x is reserved, it will be masked, and the
   following code will never run. Another point is that GPIO85-
   GPIO95 bits within GEDR2 will also be masked out on PXA25x

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:14 +01:00
Eric Miao 348f2e3b29 [ARM] 4437/1: PXA: move the GPIO IRQ initialization code to pxa_init_irq_gpio()
move the GPIO IRQ initialization code to pxa_init_irq_gpio()

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:11 +01:00
Eric Miao 53665a50fd [ARM] 4436/1: PXA: move low IRQ initialization code to pxa_init_irq_low()
1. move low IRQ initialization code to pxa_init_irq_low()

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:11 +01:00
Eric Miao c08b7b3ef6 [ARM] 4435/1: PXA: remove PXA_INTERNAL_IRQS
1. define PXA_GPIO_IRQ_BASE to be right after the internal IRQs,
   and define PXA_GPIO_IRQ_NUM to be 128 for all PXA2xx variants

2. make the code specific to the high IRQ numbers (32..64) to be
   PXA27x specific

3. add a function pxa_init_irq_high() to initialize the internal
   high IRQ chip, the invoke of this function could be moved to
   PXA27x specific initialization code

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:10 +01:00
Eric Miao 486c955118 [ARM] 4434/1: PXA: remove PXA_IRQ_SKIP
1. PXA_IRQ_SKIP is defined to be 7 on PXA25x so that the first IRQ
   starts from zero. This makes IRQ numbering inconsistent between
   PXA25x and PXA27x. Remove this macro so that the same IRQ_XXXXX
   definition has the same value on both PXA25x and PXA27x.

2. make IRQ_SSP3..IRQ_PWRI2C valid only if PXA27x is defined, this
   avoids unintentional use of these macros on PXA25x

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:09 +01:00
Russell King 88dfe98c68 [ARM] pxa: Fix PXA27x suspend type validation, remove pxa_pm_prepare()
pxa_pm_prepare() tried to validate the suspend method type.  As
noted in previous commits:
	eb9289eb20
	9c372d06ce
	e8c9c50269

the checking of the suspend type in the 'prepare' method is the
wrong place to do this; use the 'valid' method instead.  This
means that pxa_pm_prepare() can be entirely removed.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:06 +01:00
Russell King e176bb05fe [ARM] pxa: move pm_ops structure into CPU specific files
Move the pm_ops structure into the PXA25x and PXA27x support
files.  Remove the old pxa_pm_prepare() function, and rename
the both pxa_cpu_pm_prepare() functions as pxa_pm_prepare().
We'll fix that later.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:05 +01:00
Russell King b23170c01f [ARM] pxa: introduce cpu_is_pxaXXX macros
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:28:04 +01:00
Russell King f4b6a0a401 [ARM] pxa: use mutexes instead of semaphores
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:27:55 +01:00
Russell King f62c3f2c35 [ARM] pxa: remove useless pxa_pm_finish() function
pxa_pm_finish() does nothing but return zero.  The core code
does nothing with this return value, and will not try to call
the finish method in the pm_ops structure if it is NULL.

Therefore, we can remove this useless function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-12 14:27:53 +01:00
Richard Purdie 1f750a782c [ARM] 4458/1: pxa: Fix CKEN usage and hence fix pxa suspend/resume
The PXA CKEN changes broken syspend/resume on the pxa27x. This patch
corrects the problem and fixes another couple of bad references.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-02 13:39:37 +01:00
Simon Arlott 6cbdc8c535 [ARM] spelling fixes
Spelling fixes in arch/arm/.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-20 20:10:32 +01:00
Jürgen Schindele c9184f58ca [ARM] 4362/1: trizeps4 update
This update for trizeps4 SoM contains:
- support for new TFT on more recent ConXS evalboard
- correct partition of flash device
- update of "trizeps4_defconfig"

Signed-off-by: Jrgen Schindele (linux@schindele.name)
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-11 17:19:20 +01:00
Bernhard Walle b30fabadae Add IRQF_IRQPOLL flag on arm
Add IRQF_IRQPOLL for each timer interrupt.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:22 -07:00
Linus Torvalds c6799ade4a Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (82 commits)
  [ARM] Add comments marking in-use ptrace numbers
  [ARM] Move syscall saving out of the way of utrace
  [ARM] 4360/1: S3C24XX: regs-udc.h remove unused macro
  [ARM] 4358/1: S3C24XX: mach-qt2410.c: remove linux/mmc/protocol.h header
  [ARM] mm 10: allow memory type to be specified with ioremap
  [ARM] mm 9: add additional device memory types
  [ARM] mm 8: define mem_types table L1 bit 4 to be for ARMv6
  [ARM] iop: add missing parens in macro
  [ARM] mm 7: remove duplicated __ioremap() prototypes
  ARM: OMAP: fix OMAP1 mpuio suspend/resume oops
  ARM: OMAP: MPUIO wake updates
  ARM: OMAP: speed up gpio irq handling
  ARM: OMAP: plat-omap changes for 2430 SDP
  ARM: OMAP: gpio object shrinkage, cleanup
  ARM: OMAP: /sys/kernel/debug/omap_gpio
  ARM: OMAP: Implement workaround for GPIO wakeup bug in OMAP2420 silicon
  ARM: OMAP: Enable 24xx GPIO autoidling
  [ARM] 4318/2: DSM-G600 Board Support
  [ARM] 4227/1: minor head.S fixups
  [ARM] 4328/1: Move i.MX UART regs to driver
  ...
2007-05-06 13:20:10 -07:00
Johannes Berg e8c9c50269 power management: implement pm_ops.valid for everybody
Almost all users of pm_ops only support mem sleep, don't check in .valid and
don't reject any others in .prepare so users can be confused if they check
/sys/power/state, especially when new states are added (these would then
result in s-t-r although they're supposed to be something different).

This patch implements a generic pm_valid_only_mem function that is then
exported for users and puts it to use in almost all existing pm_ops.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: linux-pm@lists.linux-foundation.org
Cc: Len Brown <lenb@kernel.org>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Greg KH <greg@kroah.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-30 16:40:40 -07:00
Johannes Berg fe0c935a6c rework pm_ops pm_disk_mode, kill misuse
This patch series cleans up some misconceptions about pm_ops.  Some users of
the pm_ops structure attempt to use it to stop the user from entering suspend
to disk, this, however, is not possible since the user can always use
"shutdown" in /sys/power/disk and then the pm_ops are never invoked.  Also,
platforms that don't support suspend to disk simply should not allow
configuring SOFTWARE_SUSPEND (read the help text on it, it only selects
suspend to disk and nothing else, all the other stuff depends on PM).

The pm_ops structure is actually intended to provide a way to enter
platform-defined sleep states (currently supported states are "standby" and
"mem" (suspend to ram)) and additionally (if SOFTWARE_SUSPEND is configured)
allows a platform to support a platform specific way to enter low-power mode
once everything has been saved to disk.  This is currently only used by ACPI
(S4).

This patch:

The pm_ops.pm_disk_mode is used in totally bogus ways since nobody really
seems to understand what it actually does.

This patch clarifies the pm_disk_mode description.

It also removes all the arm and sh users that think they can veto suspend to
disk via pm_ops; not so since the user can always do echo shutdown >
/sys/power/disk, they need to find a better way involving Kconfig or such.

ACPI is the only user left with a non-zero pm_disk_mode.

The patch also sets the default mode to shutdown again, but when a new pm_ops
is registered its pm_disk_mode is selected as default, that way the default
stays for ACPI where it is apparently required.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: <linux-pm@lists.linux-foundation.org>
Cc: Len Brown <lenb@kernel.org>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Cc: Greg KH <greg@kroah.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-30 16:40:40 -07:00
Eric Miao 7053acbd78 [ARM] 4304/1: removes the unnecessary bit number from CKENnn_XXXX
This patch removes the unnecessary bit number from CKENnn_XXXX
definitions for PXA, so that

	CKEN0_PWM0 --> CKEN_PWM0
	CKEN1_PWM1 --> CKEN_PWM1
	...
	CKEN24_CAMERA --> CKEN_CAMERA

The reasons for the change of these defitions are:

1. they do not scale - they are currently valid for pxa2xx, but
definitely not valid for pxa3xx, e.g., pxa3xx has bit 3 for camera
instead of bit 24

2. they are unnecessary - the peripheral name within the definition
has already announced its usage, we don't need those bit numbers
to know which peripheral we are going to enable/disable clock for

3. they are inconvenient - think about this: a driver programmer
for pxa has to remember which bit in the CKEN register to turn
on/off

Another change in the patch is to make the definitions equal to its
clock bit index, so that

   #define CKEN_CAMERA  (24)

instead of

   #define CKEN_CAMERA  (1 << 24)

this change, however, will add a run-time bit shift operation in
pxa_set_cken(), but the benefit of this change is that it scales
when bit index exceeds 32, e.g., pxa3xx has two registers CKENA
and CKENB, totally 64 bit for this, suppose CAMERA clock enabling
bit is CKENB:10, one can simply define CKEN_CAMERA to be (32 + 10)
and so that pxa_set_cken() need minimum change to adapt to that.

Signed-off-by: eric miao <eric.y.miao@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-04-21 23:14:01 +01:00
Philipp Zabel 4fe4a2bf9a [ARM] 4236/2: basic {enable,disable}_irq_wake() support for PXA
pxa_set_gpio_wake handles GPIOs > 1, so IRQ_TO_GPIO has to be used
instead of just substracting IRQ_GPIO0 from the irq number.
2007-04-21 20:36:44 +01:00
Russell King 0f0a00beb8 [ARM] Remove needless linux/ptrace.h includes
Lots of places in arch/arm were needlessly including linux/ptrace.h,
resumably because we used to pass a struct pt_regs to interrupt
handlers.  Now that we don't, all these ptrace.h includes are
redundant.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-04-21 20:34:47 +01:00
Richard Purdie 774830377b [ARM] 4249/1: Fix tosa compile failure
Fix tosa compile failure from commit
32f3f49910

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-03-08 13:33:58 +00:00
Russell King 14fca61a98 [ARM] Yet more asm/apm-emulation.h stuff
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-03-02 11:58:57 +00:00
Linus Torvalds 038c068f63 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] CLPS7500 doesn't have IO ports
  [ARM] Fix more apm-emulation.h
  [ARM] 4234/1: Introduce get_irqnr_preamble and arch_ret_to_user for ns9xxx.
  [ARM] 4233/1: nand/s3c2410.c: warning fix
  [ARM] 4226/1: initial .data and .bss mappings of XIP kernel should be TEXT_OFFSET
  [ARM] 4224/2: allow XIP kernel to boot again
  [ARM] 4232/1: AT91: Generic GPIO bug
  [ARM] 4231/1: AT91: Merge and typo fixes.
  [ARM] 4229/1: S3C2410: Add MACH_QT2410 to s3c2410_defconfig
  [ARM] 4228/2: S3C24XX: update s3c2410_defconfig for 2.6.21-rc1
2007-02-26 13:19:17 -08:00
Russell King 61fde514c2 [ARM] Fix more apm-emulation.h
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-26 21:04:29 +00:00
Philipp Zabel 3deac046e2 [PATCH] GPIO API: PXA wrapper cleanup
Based on the discussion last december (http://lkml.org/lkml/2006/12/20/242),
this patch:

  - moves the PXA_LAST_GPIO check into pxa_gpio_mode
  - fixes comment and includes in gpio.h
  - replaces the gpio_set/get_value macros with inline
    functions and adds a non-inline version to avoid
    code explosion when gpio is not a constant.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-20 17:10:16 -08:00
Linus Torvalds 59b8175c77 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (117 commits)
  [ARM] 4058/2: iop32x: set ->broken_parity_status on n2100 onboard r8169 ports
  [ARM] 4140/1: AACI stability add ac97 timeout and retries
  [ARM] 4139/1: AACI record support
  [ARM] 4138/1: AACI: multiple channel support for IRQ handling
  [ARM] 4211/1: Provide a defconfig for ns9xxx
  [ARM] 4210/1: base for new machine type "NetSilicon NS9360"
  [ARM] 4222/1: S3C2443: Remove reference to missing S3C2443_PM
  [ARM] 4221/1: S3C2443: DMA support
  [ARM] 4220/1: S3C24XX: DMA system initialised from sysdev
  [ARM] 4219/1: S3C2443: DMA source definitions
  [ARM] 4218/1: S3C2412: fix CONFIG_CPU_S3C2412_ONLY wrt to S3C2443
  [ARM] 4217/1: S3C24XX: remove the dma channel show at startup
  [ARM] 4090/2: avoid clash between PXA and SA1111 defines
  [ARM] 4216/1: add .gitignore entries for ARM specific files
  [ARM] 4214/2: S3C2410: Add Armzone QT2410
  [ARM] 4215/1: s3c2410 usb device:  per-platform vbus_draw
  [ARM] 4213/1: S3C2410 - Update definition of ADCTSC_XY_PST
  [ARM] 4098/1: ARM: rtc_lock only used with rtc_cmos
  [ARM] 4137/1: Add kexec support
  [ARM] 4201/1: SMP barriers pair needed for the secondary boot process
  ...

Fix up conflict due to typedef removal in sound/arm/aaci.h
2007-02-19 13:18:39 -08:00
Thomas Gleixner c66699a749 [PATCH] clocksource: fixup is_continous changes on ARM
Fixup the is_contionous replacement by a flag field.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-16 08:13:57 -08:00
Ralf Baechle 75e7153abd [APM] ARM: Convert to use shared APM emulation.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-09 17:08:58 +00:00
Guennadi Liakhovetski a7b4e5506d [ARM] 4144/1: Fix for patch #4099/1 with CONFIG_I2C_PXA_SLAVE set
Switch the i2c-pxa driver to actually using the platform device information and let it handle the power i2c bus on pxa27x too. Original version of this patch didn't compile with CONFIG_I2C_PXA_SLAVE set.

Signed-off-by: G. Liakhovetski <gl@dsa-ac.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-08 14:46:36 +00:00
Nicolas Pitre 0c48d314b1 [ARM] 4066/1: correct a comment about PXA's sched_clock range
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-12-30 17:05:07 +00:00
Nicolas Pitre 35108fb9b3 [ARM] 4064/1: make pxa_get_cycles() static
... and fix a comment as well.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-12-30 17:05:06 +00:00
Linus Torvalds e05135d155 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 4017/1: [Jornada7xx] - Updating Jornada720.c
  [ARM] 3992/1: i.MX/MX1 CPU Frequency scaling support
  [ARM] Provide a method to alter the control register
  [ARM] 4016/1: prefetch macro is wrong wrt gcc's "delete-null-pointer-checks"
  [ARM] Remove empty fixup function
  [ARM] 4014/1: include drivers/hid/Kconfig
  [ARM] 4013/1: clocksource driver for netx
  [ARM] 4012/1: Clocksource for pxa
  [ARM] Clean up ioremap code
  [ARM] Unuse another Linux PTE bit
  [ARM] Clean up KERNEL_RAM_ADDR
  [ARM] Add sys_*at syscalls
  [ARM] 4004/1: S3C24XX: UDC remove implict addition of VA to regs
  [ARM] Formalise the ARMv6 processor name string
  [ARM] Handle HWCAP_VFP in VFP support code
  [ARM] 4011/1: AT91SAM9260: Fix compilation with NAND driver
  [ARM] 4010/1: AT91SAM9260-EK board: Prepare for MACB Ethernet support
2006-12-13 15:58:32 -08:00
Russell King 386b0ce25a [ARM] Remove empty fixup function
Empty fixup functions are just a waste of code, and are not
necessary.  Remote them.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-12-13 14:48:36 +00:00
Sascha Hauer c80204e5d6 [ARM] 4012/1: Clocksource for pxa
Add a clocksource driver for pxa2xx systems

Signed-off-by: Luotao Fu <lfu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-12-13 14:37:26 +00:00
Robert P. J. Day bef1f40261 kconfig: Standardize "depends" -> "depends on" in Kconfig files
Standardize the miniscule percentage of occurrences of "depends" in
Kconfig files to "depends on", and update kconfig-language.txt to
reflect that.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-12-12 20:04:19 +01:00
Linus Torvalds ea14fad0d4 Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (76 commits)
  [ARM] 4002/1: S3C24XX: leave parent IRQs unmasked
  [ARM] 4001/1: S3C24XX: shorten reboot time
  [ARM] 3983/2: remove unused argument to __bug()
  [ARM] 4000/1: Osiris: add third serial port in
  [ARM] 3999/1: RX3715: suspend to RAM support
  [ARM] 3998/1: VR1000: LED platform devices
  [ARM] 3995/1: iop13xx: add iop13xx support
  [ARM] 3968/1: iop13xx: add iop13xx_defconfig
  [ARM] Update mach-types
  [ARM] Allow gcc to optimise arm_add_memory a little more
  [ARM] 3991/1: i.MX/MX1 high resolution time source
  [ARM] 3990/1: i.MX/MX1 more precise PLL decode
  [ARM] 3986/1: H1940: suspend to RAM support
  [ARM] 3985/1: ixp4xx clocksource cleanup
  [ARM] 3984/1: ixp4xx/nslu2: Fix disk LED numbering (take 2)
  [ARM] 3994/1: ixp23xx: fix handling of pci master aborts
  [ARM] 3981/1: sched_clock for PXA2xx
  [ARM] 3980/1: extend the ARM Versatile sched_clock implementation from 32 to 63 bit
  [ARM] 3979/1: extend the SA11x0 sched_clock implementation from 32 to 63 bit period
  [ARM] 3978/1: macro to provide a 63-bit value from a 32-bit hardware counter
  ...
2006-12-07 15:40:39 -08:00
Russell King 6705cda24f [ARM] Merge individual ARM sub-trees
Merge:
 Atmel AT91RM9200 and AT91SAM9260 changes
 General ARM developments
 Disconfiguous memory cleanups
 64-bit/32-bit division and sched_clock extension patches
 EP93xx support changes
 IOP support changes

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-12-07 23:07:26 +00:00
Nicolas Pitre 2dc20a51dc [ARM] 3981/1: sched_clock for PXA2xx
Here's a 63-bit implementation of shed_clock() for PXA2xx.  The actual
period depends on the value of CLOCK_TICK_RATE and whether or not
reduced scaling factors were provided for it.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-12-07 16:06:55 +00:00
David Howells 6d5aefb8ea WorkQueue: Fix up arch-specific work items where possible
Fix up arch-specific work items where possible to use the new work_struct and
delayed_work structs.

Three places that enqueue bits of their stack and then return have been marked
with #error as this is not permitted.

Signed-Off-By: David Howells <dhowells@redhat.com>
2006-12-05 19:36:26 +00:00
Lennert Buytenhek afe4b25e7d [ARM] 3881/4: xscale: clean up cp0/cp1 handling
XScale cores either have a DSP coprocessor (which contains a single
40 bit accumulator register), or an iWMMXt coprocessor (which contains
eight 64 bit registers.)

Because of the small amount of state in the DSP coprocessor, access to
the DSP coprocessor (CP0) is always enabled, and DSP context switching
is done unconditionally on every task switch.  Access to the iWMMXt
coprocessor (CP0/CP1) is enabled only when an iWMMXt instruction is
first issued, and iWMMXt context switching is done lazily.

CONFIG_IWMMXT is supposed to mean 'the cpu we will be running on will
have iWMMXt support', but boards are supposed to select this config
symbol by hand, and at least one pxa27x board doesn't get this right,
so on that board, proc-xscale.S will incorrectly assume that we have a
DSP coprocessor, enable CP0 on boot, and we will then only save the
first iWMMXt register (wR0) on context switches, which is Bad.

This patch redefines CONFIG_IWMMXT as 'the cpu we will be running on
might have iWMMXt support, and we will enable iWMMXt context switching
if it does.'  This means that with this patch, running a CONFIG_IWMMXT=n
kernel on an iWMMXt-capable CPU will no longer potentially corrupt iWMMXt
state over context switches, and running a CONFIG_IWMMXT=y kernel on a
non-iWMMXt capable CPU will still do DSP context save/restore.

These changes should make iWMMXt work on PXA3xx, and as a side effect,
enable proper acc0 save/restore on non-iWMMXt capable xsc3 cores such
as IOP13xx and IXP23xx (which will not have CONFIG_CPU_XSCALE defined),
as well as setting and using HWCAP_IWMMXT properly.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-12-03 17:52:22 +00:00
Nicolas Pitre 46ec0ce8ce [ARM] 3940/1: don't reset PXA2xx clock counter
Don't reset OSCR to zero as this prevents us from having a contiguous
time source. The value returned by sched_clock() is reset to zero in the
middle of the boot process otherwise, making CONFIG_PRINTK_TIME rather
messed up.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-11-30 12:52:45 +00:00
Russell King 10dd5ce28d [ARM] Remove compatibility layer for ARM irqs
set_irq_chipdata -> set_irq_chip_data
get_irq_chipdata -> get_irq_chip_data
do_level_IRQ -> handle_level_irq
do_edge_IRQ -> handle_edge_irq
do_simple_IRQ -> handle_simple_irq
irqdesc -> irq_desc
irqchip -> irq_chip

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-11-30 12:24:47 +00:00
Russell King 2326eb985b [ARM] Fix fallout from IRQ regs changes
Some ARM platforms were still broken as a result of the IRQ register
passing changes, mostly due to a missing linux/irq.h include.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-10-15 13:48:37 +01:00
David Howells 40220c1a19 IRQ: Use the new typedef for interrupt handler function pointers
Use the new typedef for interrupt handler function pointers rather than
actually spelling out the full thing each time.  This was scripted with the
following small shell script:

#!/bin/sh
egrep -nHrl -e 'irqreturn_t[ 	]*[(][*]' $* |
while read i
do
    echo $i
    perl -pi -e 's/irqreturn_t\s*[(]\s*[*]\s*([_a-zA-Z0-9]*)\s*[)]\s*[(]\s*int\s*,\s*void\s*[*]\s*[)]/irq_handler_t \1/g' $i || exit $?
done

Signed-Off-By: David Howells <dhowells@redhat.com>
2006-10-09 12:19:47 +01:00