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powerpc/4xx: Add Kilauea suspend and idle support 

- Add Clock Power Management (CPM) node to dts tree
- Add idle-doze entry in CPM node
- Add standby entry in CPM node
- Add PM and SUSPEND support by default in defconfig
- Add NO_HZ and CONFIG_HIGH_RES_TIMERS support by
  default in defconfig

Signed-off-by: Victor Gallardo <vgallardo@apm.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
hifive-unleashed-5.1
Victor Gallardo 2010-10-08 10:26:13 +00:00 committed by Josh Boyer
parent d164f6d4f9
commit 05ed60874e
2 changed files with 14 additions and 0 deletions
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9
arch/powerpc/boot/dts/kilauea.dts
View File

@ -82,6 +82,15 @@
interrupt-parent = <&UIC0>;
};
CPM0: cpm {
compatible = "ibm,cpm";
dcr-access-method = "native";
dcr-reg = <0x0b0 0x003>;
unused-units = <0x00000000>;
idle-doze = <0x02000000>;
standby = <0xe3e74800>;
};
plb {
compatible = "ibm,plb-405ex", "ibm,plb4";
#address-cells = <1>;

5
arch/powerpc/configs/40x/kilauea_defconfig
View File

@ -12,6 +12,8 @@ CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_KILAUEA=y
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
# CONFIG_WALNUT is not set
CONFIG_SPARSE_IRQ=y
CONFIG_PCI=y
@ -42,6 +44,9 @@ CONFIG_MTD_PHYSMAP_OF=y
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_NDFC=y
CONFIG_PROC_DEVICETREE=y
CONFIG_PM=y
CONFIG_SUSPEND=y
CONFIG_PPC4xx_CPM=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=35000
# CONFIG_MISC_DEVICES is not set