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authorVictor Gallardo <vgallardo@apm.com>2010-10-08 10:25:27 +0000
committerJosh Boyer <jwboyer@linux.vnet.ibm.com>2010-11-29 10:05:06 -0500
commitd164f6d4f9108126f69ba2963cf6fb7ef4ba9232 (patch)
tree9f0f97180ee4f7486974c657588e8ee65074fcc2 /arch/powerpc/Kconfig
parent46f5221049bb46b0188aad6b6dfab5dbc778be22 (diff)
downloadlinaro-lsk-d164f6d4f9108126f69ba2963cf6fb7ef4ba9232.tar.gz
powerpc/4xx: Add suspend and idle support
Add suspend/resume support for 4xx compatible CPUs. See /sys/power/state for available power states configured in. Add two different idle states (idle-wait and idle-doze) controlled via sysfs. Default is idle-wait. cat /sys/devices/system/cpu/cpu0/idle [wait] doze To save additional power, use idle-doze. echo doze > /sys/devices/system/cpu/cpu0/idle cat /sys/devices/system/cpu/cpu0/idle wait [doze] Signed-off-by: Victor Gallardo <vgallardo@apm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
Diffstat (limited to 'arch/powerpc/Kconfig')
-rw-r--r--arch/powerpc/Kconfig13
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 06d742c3fbc..e16b4988f82 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -212,7 +212,7 @@ config ARCH_HIBERNATION_POSSIBLE
config ARCH_SUSPEND_POSSIBLE
def_bool y
depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \
- PPC_85xx || PPC_86xx || PPC_PSERIES
+ PPC_85xx || PPC_86xx || PPC_PSERIES || 44x || 40x
config PPC_DCR_NATIVE
bool
@@ -598,13 +598,11 @@ config EXTRA_TARGETS
If unsure, leave blank
-if !44x || BROKEN
config ARCH_WANTS_FREEZER_CONTROL
def_bool y
depends on ADB_PMU
source kernel/power/Kconfig
-endif
config SECCOMP
bool "Enable seccomp to safely compute untrusted bytecode"
@@ -685,6 +683,15 @@ config FSL_PMC
Freescale MPC85xx/MPC86xx power management controller support
(suspend/resume). For MPC83xx see platforms/83xx/suspend.c
+config PPC4xx_CPM
+ bool
+ default y
+ depends on SUSPEND && (44x || 40x)
+ help
+ PPC4xx Clock Power Management (CPM) support (suspend/resume).
+ It also enables support for two different idle states (idle-wait
+ and idle-doze).
+
config 4xx_SOC
bool