Merge branch 'platforms' of git://git.linaro.org/people/rmk/linux-arm

Pull ARM platform updates from Russell King:
 "This covers platform stuff for platforms I have a direct interest in
  (iow, I have the hardware).  Essentially:
   - as we no longer support any other Acorn platforms other than RiscPC
     anymore, we can collect all that code into mach-rpc.
   - convert Acorn expansion card stuff to use IRQ allocation functions,
     and get rid of NO_IRQ from there.
   - cleanups to the ebsa110 platform to move some private stuff out of
     its header files.
   - large amount of SA11x0 updates:
   - conversion of private DMA implementation to DMA engine support
     (this actually gives us greater flexibility in drivers over the old
     API.)
   - re-worked ucb1x00 updates - convert to genirq, remove sa11x0
     dependencies, fix various minor issues
   - move platform specific sa11x0 framebuffer data into platform files
     in arch/arm instead of keeping this in the driver itself
   - update sa11x0 IrDA driver for DMA engine, and allow it to use DMA
     for SIR transmissions as well as FIR
   - rework sa1111 support for genirq, and irq allocation
   - fix sa1111 IRQ support so it works again
   - use sparse IRQ support

  After this, I have one more pull request remaining from my current
  set, which I think is going to be the most problematical as it
  generates 8 conflicts."

Fixed up the trivial conflict in arch/arm/mach-rpc/Makefile as per
Russell.

* 'platforms' of git://git.linaro.org/people/rmk/linux-arm: (125 commits)
  ARM: 7343/1: sa11x0: convert to sparse IRQ
  ARM: 7342/2: sa1100: prepare for sparse irq conversion
  ARM: 7341/1: input: prepare jornada720 keyboard and ts for sa11x0 sparse irq
  ARM: 7340/1: rtc: sa1100: include mach/irqs.h instead of asm/irq.h
  ARM: sa11x0: remove unused DMA controller definitions
  ARM: sa11x0: remove old SoC private DMA driver
  USB: sa1111: add hcd .reset method
  USB: sa1111: add OHCI shutdown methods
  USB: sa1111: reorganize ohci-sa1111.c
  USB: sa1111: get rid of nasty printk(KERN_DEBUG "%s: ...", __FILE__)
  USB: sa1111: sparse and checkpatch cleanups
  ARM: sa11x0: don't static map sa1111
  ARM: sa1111: use dev_err() rather than printk()
  ARM: sa1111: cleanup sub-device registration and unregistration
  ARM: sa1111: only setup DMA for DMA capable devices
  ARM: sa1111: register sa1111 devices with dmabounce in bus notifier
  ARM: sa1111: move USB interface register definitions to ohci-sa1111.c
  ARM: sa1111: move PCMCIA interface register definitions to sa1111_generic.c
  ARM: sa1111: move PS/2 interface register definitions to sa1111p2.c
  ARM: sa1111: delete unused physical GPIO register definitions
  ...

1 files changed, 22 insertions, 15 deletions

diff --git a/arch/arm/mach-sa1100/sleep.S b/arch/arm/mach-sa1100/sleep.S
index e8223315b44..30cc6721665 100644
--- a/arch/arm/mach-sa1100/sleep.S
+++ b/arch/arm/mach-sa1100/sleep.S
@@ -26,27 +26,36 @@
  *
  * Causes sa11x0 to enter sleep state
  *
+ * Must be aligned to a cacheline.
  */
-
+	.balign	32
 ENTRY(sa1100_finish_suspend)
 	@ disable clock switching
 	mcr	p15, 0, r1, c15, c2, 2
 
-        @ Adjust memory timing before lowering CPU clock
-	@ Clock speed adjustment without changing memory timing makes
-	@ CPU hang in some cases
-        ldr     r0, =MDREFR
-        ldr     r1, [r0]
-        orr     r1, r1, #MDREFR_K1DB2
-        str     r1, [r0]
+	ldr	r6, =MDREFR
+	ldr	r4, [r6]
+	orr     r4, r4, #MDREFR_K1DB2
+	ldr	r5, =PPCR
+
+	@ Pre-load __udelay into the I-cache
+	mov	r0, #1
+	bl	__udelay
+	mov	r0, r0
+
+	@ The following must all exist in a single cache line to
+	@ avoid accessing memory until this sequence is complete,
+	@ otherwise we occasionally hang.
+
+	@ Adjust memory timing before lowering CPU clock
+	str     r4, [r6]
 
 	@ delay 90us and set CPU PLL to lowest speed
 	@ fixes resume problem on high speed SA1110
 	mov	r0, #90
 	bl	__udelay
-	ldr	r0, =PPCR
 	mov	r1, #0
-	str	r1, [r0]
+	str	r1, [r5]
 	mov	r0, #90
 	bl	__udelay
 
@@ -85,12 +94,10 @@ ENTRY(sa1100_finish_suspend)
 	bic	r5, r5, #FMsk(MSC_RT)
 	bic	r5, r5, #FMsk(MSC_RT)<<16
 
-	ldr	r6, =MDREFR
-
 	ldr	r7, [r6]
-bic	r7, r7, #0x0000FF00
-bic	r7, r7, #0x000000F0
-orr	r8, r7, #MDREFR_SLFRSH
+	bic	r7, r7, #0x0000FF00
+	bic	r7, r7, #0x000000F0
+	orr	r8, r7, #MDREFR_SLFRSH
 
 	ldr	r9, =MDCNFG
 	ldr	r10, [r9]