Commit ee2ffd8b authored by Victor Gallardo's avatar Victor Gallardo Committed by Josh Boyer
Browse files

powerpc/4xx: Add Canyonlands 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
- Remove UART2 and UART3 as they are unused, this will
  allow CPM to put unused-units (UART2 and UART3) to sleep.

Signed-off-by: default avatarVictor Gallardo <vgallardo@apm.com>
Signed-off-by: default avatarJosh Boyer <jwboyer@linux.vnet.ibm.com>
parent 05ed6087

arch/powerpc/boot/dts/canyonlands.dts

+9 −22
Original line number Diff line number Diff line
@@ -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>;

arch/powerpc/configs/44x/canyonlands_defconfig

+3 −0
Original line number Diff line number Diff line
@@ -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

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