[PATCH] ARM: 2691/1: PXA27x sleep fixes take 2

Patch from Todd Poynor

PXA27x sleep fixes:
* set additional sleep/wakeup registers for Mainstone boards.
* move CKEN=0 to pxa25x-specific code; that value is harmful on pxa27x.
* save/restore additional registers, including some found necessary for
C5 processors and/or newer blob versions.
* enable future support of additional sleep modes for PXA27x (eg,
standby, deep sleep).
* split off cpu-specific sleep processing between pxa27x and pxa25x into
separate files (partly in preparation for additional sleep modes).
Includes fixes from David Burrage.

Signed-off-by: Todd Poynor
Signed-off-by: Nicolas Pitre
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 3f952237ae3d..6823ae28ae6a 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -304,6 +304,15 @@ static void __init mainstone_map_io(void)
         PWER  = 0xC0000002;
         PRER  = 0x00000002;
         PFER  = 0x00000002;
+        /*      for use I SRAM as framebuffer.  */
+        PSLR |= 0xF04;
+        PCFR = 0x66;
+        /*      For Keypad wakeup.      */
+        KPC &=~KPC_ASACT;
+        KPC |=KPC_AS;
+        PKWR  = 0x000FD000;
+        /*      Need read PKWR back after set it.       */
+        PKWR;
 }
 
 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")