From c9749a352383d4d2d25eb28062afd1a7eee115b7 Mon Sep 17 00:00:00 2001 From: Santosh Shilimkar Date: Sun, 23 Jan 2011 19:33:53 +0530 Subject: [PATCH] OMAP3: PM: Allow the cache clean when L1 is lost. 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 Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/sleep34xx.S | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S index a31845a201e9..f75a166f0a21 100644 --- a/arch/arm/mach-omap2/sleep34xx.S +++ b/arch/arm/mach-omap2/sleep34xx.S @@ -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 -- GitLab