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powerpc/4xx: Add Canyonlands suspend and idle support

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- 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
- Remove UART2 and UART3 as they are unused, this will
  allow CPM to put unused-units (UART2 and UART3) to sleep.

Signed-off-by: Victor Gallardo <vgallardo@apm.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
This commit is contained in:
Victor Gallardo 2010-10-08 10:25:44 +00:00 committed by Josh Boyer
parent 05ed60874e
commit ee2ffd8bbb
2 changed files with 12 additions and 22 deletions
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31
arch/powerpc/boot/dts/canyonlands.dts
View file

@ -105,6 +105,15 @@
dcr-reg = <0x00c 0x002>;
};
CPM0: cpm {
compatible = "ibm,cpm";
dcr-access-method = "native";
dcr-reg = <0x160 0x003>;
unused-units = <0x00000100>;
idle-doze = <0x02000000>;
standby = <0xfeff791d>;
};
L2C0: l2c {
compatible = "ibm,l2-cache-460ex", "ibm,l2-cache";
dcr-reg = <0x020 0x008 /* Internal SRAM DCR's */
@ -270,28 +279,6 @@
interrupts = <0x1 0x4>;
};
UART2: serial@ef600500 {
device_type = "serial";
compatible = "ns16550";
reg = <0xef600500 0x00000008>;
virtual-reg = <0xef600500>;
clock-frequency = <0>; /* Filled in by U-Boot */
current-speed = <0>; /* Filled in by U-Boot */
interrupt-parent = <&UIC1>;
interrupts = <28 0x4>;
};
UART3: serial@ef600600 {
device_type = "serial";
compatible = "ns16550";
reg = <0xef600600 0x00000008>;
virtual-reg = <0xef600600>;
clock-frequency = <0>; /* Filled in by U-Boot */
current-speed = <0>; /* Filled in by U-Boot */
interrupt-parent = <&UIC1>;
interrupts = <29 0x4>;
};
IIC0: i2c@ef600700 {
compatible = "ibm,iic-460ex", "ibm,iic";
reg = <0xef600700 0x00000014>;

3
arch/powerpc/configs/44x/canyonlands_defconfig
View file

@ -42,6 +42,9 @@ 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