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| author | Magnus Damm <damm@opensource.se> | 2009-10-30 04:24:40 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-10-30 14:38:45 +0900 |
| commit | bb3e0eed9dd51987c7462bae2880a3d4d750c55a (patch) | |
| tree | 3e8bb7465ab8e39c7836562dccb539817fe3c5f3 /arch/sh/kernel/cpu/shmobile/sleep.S | |
| parent | 03625e7107cde46e2851557ec06426799e6ae7f2 (diff) | |
| download | op-kernel-dev-bb3e0eed9dd51987c7462bae2880a3d4d750c55a.zip op-kernel-dev-bb3e0eed9dd51987c7462bae2880a3d4d750c55a.tar.gz | |
sh: Add R-standby sleep mode support
Add R-standby specific bits to the SuperH Mobile sleep code.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/cpu/shmobile/sleep.S')
| -rw-r--r-- | arch/sh/kernel/cpu/shmobile/sleep.S | 12 |
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 |
