SRAM is used for early stack, but kernel disables its clock on suspend.
Re-enable SRAM clock on startup, otherwise u-boot crashes on resume from
suspend.
Signed-off-by: Vasily Khoruzhick <anars...@gmail.com>
---
arch/arm/cpu/pxa/start.S | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/arch/arm/cpu/pxa/start.S b/arch/arm/cpu/pxa/start.S
index 24b6ad1..ce1181a 100644
--- a/arch/arm/cpu/pxa/start.S
+++ b/arch/arm/cpu/pxa/start.S
@@ -53,7 +53,15 @@ reset:
#ifdef CONFIG_CPU_PXA25X
bl lock_cache_for_stack
#endif
-
+#ifdef CONFIG_CPU_PXA27X
+ /*
+ * enable clock for SRAM
+ */
+ ldr r0,=CKEN
+ ldr r1,[r0]
+ orr r1,r1,#(1 << 20)
+ str r1,[r0]
+#endif
bl _main
/*------------------------------------------------------------------------------*/
--
2.7.2
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