diff options
Diffstat (limited to 'arch/arm/mach-omap2/sram34xx.S')
| -rw-r--r-- | arch/arm/mach-omap2/sram34xx.S | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S index 8d524f305633..9a454151c422 100644 --- a/arch/arm/mach-omap2/sram34xx.S +++ b/arch/arm/mach-omap2/sram34xx.S @@ -77,7 +77,9 @@ lock_dll: sdram_in_selfrefresh: ldr r4, omap3_sdrc_power @ read the SDRC_POWER register ldr r5, [r4] @ read the contents of SDRC_POWER + mov r9, r5 @ keep a copy of SDRC_POWER bits orr r5, r5, #0x40 @ enable self refresh on idle req + bic r5, r5, #0x4 @ clear PWDENA str r5, [r4] @ write back to SDRC_POWER register ldr r5, [r4] @ posted-write barrier for SDRC ldr r4, omap3_cm_iclken1_core @ read the CM_ICLKEN1_CORE reg @@ -128,10 +130,9 @@ wait_sdrc_idle1: and r5, r5, #0x2 cmp r5, #0 bne wait_sdrc_idle1 +restore_sdrc_power_val: ldr r4, omap3_sdrc_power - ldr r5, [r4] - bic r5, r5, #0x40 - str r5, [r4] + str r9, [r4] @ restore SDRC_POWER, no barrier needed bx lr wait_dll_lock: ldr r4, omap3_sdrc_dlla_status |