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authorKumar Gala <galak@kernel.crashing.org>2008-06-18 16:26:52 -0500
committerKumar Gala <galak@kernel.crashing.org>2008-06-26 01:48:56 -0500
commitfc4033b2f8b1482022bff3d05505a1b1631bb6de (patch)
treec84b275968011911d8c96acebe89aa2dd92323bf /arch/powerpc/kernel/entry_32.S
parent3dfa8773674e16f95f70a0e631e80c69390d04d7 (diff)
downloadop-kernel-dev-fc4033b2f8b1482022bff3d05505a1b1631bb6de.zip
op-kernel-dev-fc4033b2f8b1482022bff3d05505a1b1631bb6de.tar.gz
powerpc/85xx: add DOZE/NAP support for e500 core
The e500 core enter DOZE/NAP power-saving modes when the core go to cpu_idle routine. The power management default running mode is DOZE, If the user echo 1 > /proc/sys/kernel/powersave-nap the system will change to NAP running mode. Signed-off-by: Dave Liu <daveliu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/entry_32.S')
-rw-r--r--arch/powerpc/kernel/entry_32.S8
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index fe21674..ab2d62f 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -176,14 +176,14 @@ transfer_to_handler:
cmplw r1,r9 /* if r1 <= ksp_limit */
ble- stack_ovf /* then the kernel stack overflowed */
5:
-#ifdef CONFIG_6xx
+#if defined(CONFIG_6xx) || defined(CONFIG_E500)
rlwinm r9,r1,0,0,31-THREAD_SHIFT
tophys(r9,r9) /* check local flags */
lwz r12,TI_LOCAL_FLAGS(r9)
mtcrf 0x01,r12
bt- 31-TLF_NAPPING,4f
bt- 31-TLF_SLEEPING,7f
-#endif /* CONFIG_6xx */
+#endif /* CONFIG_6xx || CONFIG_E500 */
.globl transfer_to_handler_cont
transfer_to_handler_cont:
3:
@@ -196,10 +196,10 @@ transfer_to_handler_cont:
SYNC
RFI /* jump to handler, enable MMU */
-#ifdef CONFIG_6xx
+#if defined (CONFIG_6xx) || defined(CONFIG_E500)
4: rlwinm r12,r12,0,~_TLF_NAPPING
stw r12,TI_LOCAL_FLAGS(r9)
- b power_save_6xx_restore
+ b power_save_ppc32_restore
7: rlwinm r12,r12,0,~_TLF_SLEEPING
stw r12,TI_LOCAL_FLAGS(r9)
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