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OMAP3: PM: Allow the cache clean when L1 is lost.

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When L1 cache is suppose to be lost, it needs to be cleaned before
entrering to the low power mode.

While at this, also fix few comments and remove un-necessary
clean_l2 lable.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
This commit is contained in:
Santosh Shilimkar 2011-01-23 19:33:53 +05:30 committed by Kevin Hilman
parent 8409d57bc3
commit c9749a3523
1 changed files with 3 additions and 12 deletions
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15
arch/arm/mach-omap2/sleep34xx.S
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@ -188,12 +188,12 @@ ENTRY(omap34xx_cpu_suspend)
stmfd sp!, {r0-r12, lr} @ save registers on stack
/*
* r0 contains restore pointer in sdram
* r0 contains CPU context save/restore pointer in sdram
* r1 contains information about saving context:
* 0 - No context lost
* 1 - Only L1 and logic lost
* 2 - Only L2 lost
* 3 - Both L1 and L2 lost
* 2 - Only L2 lost (Even L1 is retained we clean it along with L2)
* 3 - Both L1 and L2 lost and logic lost
*/
/* Directly jump to WFI is the context save is not required */
@ -277,15 +277,6 @@ l1_logic_lost:
stmia r8!, {r4}
clean_caches:
/*
* Clean Data or unified cache to POU
* How to invalidate only L1 cache???? - #FIX_ME#
* mcr p15, 0, r11, c7, c11, 1
*/
cmp r1, #0x1 @ Check whether L2 inval is required
beq omap3_do_wfi
clean_l2:
/*
* jump out to kernel flush routine
* - reuse that code is better