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-rw-r--r--arch/sh/kernel/cpu/shmobile/sleep.S12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/shmobile/sleep.S b/arch/sh/kernel/cpu/shmobile/sleep.S
index e620bf3..e9dd7fa 100644
--- a/arch/sh/kernel/cpu/shmobile/sleep.S
+++ b/arch/sh/kernel/cpu/shmobile/sleep.S
@@ -48,6 +48,9 @@ ENTRY(sh_mobile_sleep_enter_start)
stc sr, r0
mov.l r0, @(SH_SLEEP_SR, r5)
+ /* save sp */
+ mov.l r15, @(SH_SLEEP_SP, r5)
+
/* save stbcr */
bsr save_register
mov #SH_SLEEP_REG_STBCR, r0
@@ -125,6 +128,12 @@ test_rstandby:
tst #SUSP_SH_RSTANDBY, r0
bt test_ustandby
+ /* setup BAR register */
+ bsr get_register
+ mov #SH_SLEEP_REG_BAR, r0
+ mov.l @(SH_SLEEP_RESUME, r5), r1
+ mov.l r1, @r0
+
/* set mode to "r-standby mode" */
bra do_sleep
mov #0x20, r1
@@ -203,6 +212,9 @@ ENTRY(sh_mobile_sleep_resume_start)
mov.l @(SH_SLEEP_SR, r5), r0
ldc r0, ssr
+ /* restore sp */
+ mov.l @(SH_SLEEP_SP, r5), r15
+
/* restore sleep mode register */
bsr restore_register
mov #SH_SLEEP_REG_STBCR, r0
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