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pxa: start.S: enable SRAM clock

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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 <anarsoul@gmail.com>
This commit is contained in:
Vasily Khoruzhick 2016-03-20 18:37:06 -07:00 • committed by Tom Rini
parent afed7ebe85
commit 9ddde3e6ce
1 changed files with 9 additions and 1 deletions
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10
arch/arm/cpu/pxa/start.S
View file

@ -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
/*------------------------------------------------------------------------------*/