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| author | Kumar Gala <galak@kernel.crashing.org> | 2008-06-18 16:26:52 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2008-06-26 01:48:56 -0500 |
| commit | fc4033b2f8b1482022bff3d05505a1b1631bb6de (patch) | |
| tree | c84b275968011911d8c96acebe89aa2dd92323bf /arch/powerpc/kernel/setup_32.c | |
| parent | 3dfa8773674e16f95f70a0e631e80c69390d04d7 (diff) | |
| download | lwn-fc4033b2f8b1482022bff3d05505a1b1631bb6de.tar.gz lwn-fc4033b2f8b1482022bff3d05505a1b1631bb6de.zip | |
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/setup_32.c')
| -rw-r--r-- | arch/powerpc/kernel/setup_32.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c index bef0be3fd98b..9e83add54290 100644 --- a/arch/powerpc/kernel/setup_32.c +++ b/arch/powerpc/kernel/setup_32.c @@ -127,6 +127,11 @@ void __init machine_init(unsigned long dt_ptr, unsigned long phys) ppc_md.power_save = ppc6xx_idle; #endif +#ifdef CONFIG_E500 + if (cpu_has_feature(CPU_FTR_CAN_DOZE) || + cpu_has_feature(CPU_FTR_CAN_NAP)) + ppc_md.power_save = e500_idle; +#endif if (ppc_md.progress) ppc_md.progress("id mach(): done", 0x200); } |