From 125a00d74ea57a901fd4cc3d84baf2e825704b68 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Thu, 19 Mar 2009 21:01:42 +0300 Subject: powerpc/83xx: Add power management support for MPC837x boards This patch adds pmc nodes to the device tree files so that the boards will able to use standby capability of MPC837x processors. The MPC837x PMC controllers are compatible with MPC8349 ones (i.e. no deep sleep). sleep = <> properties are used to specify SCCR masks as described in "Specifying Device Power Management Information (sleep property)" chapter in Documentation/powerpc/booting-without-of.txt. Since I2C1 and eSDHC controllers share the same clock source, they are now placed under sleep-nexus nodes. A processor is able to wakeup the boards on LAN events (Wake-On-Lan), console events (with no_console_suspend kernel command line), GPIO events and external IRQs (IRQ1 and IRQ2). The processor can also wakeup the boards by the fourth general purpose timer in GTM1 block, but the GTM wakeup support isn't yet implemented (it's tested to work, but it's unclear how can we use the quite short GTM timers, and how do we want to expose the GTM to userspace). Signed-off-by: Anton Vorontsov Signed-off-by: Kumar Gala --- arch/powerpc/boot/dts/mpc8377_mds.dts | 68 ++++++++++++++++++++++++----------- 1 file changed, 47 insertions(+), 21 deletions(-) (limited to 'arch/powerpc/boot/dts/mpc8377_mds.dts') diff --git a/arch/powerpc/boot/dts/mpc8377_mds.dts b/arch/powerpc/boot/dts/mpc8377_mds.dts index 3e3ec8fdef49..cebfc50f4ce5 100644 --- a/arch/powerpc/boot/dts/mpc8377_mds.dts +++ b/arch/powerpc/boot/dts/mpc8377_mds.dts @@ -129,21 +129,38 @@ reg = <0x200 0x100>; }; - i2c@3000 { + sleep-nexus { #address-cells = <1>; - #size-cells = <0>; - cell-index = <0>; - compatible = "fsl-i2c"; - reg = <0x3000 0x100>; - interrupts = <14 0x8>; - interrupt-parent = <&ipic>; - dfsrr; + #size-cells = <1>; + compatible = "simple-bus"; + sleep = <&pmc 0x0c000000>; + ranges; - rtc@68 { - compatible = "dallas,ds1374"; - reg = <0x68>; - interrupts = <19 0x8>; + i2c@3000 { + #address-cells = <1>; + #size-cells = <0>; + cell-index = <0>; + compatible = "fsl-i2c"; + reg = <0x3000 0x100>; + interrupts = <14 0x8>; interrupt-parent = <&ipic>; + dfsrr; + + rtc@68 { + compatible = "dallas,ds1374"; + reg = <0x68>; + interrupts = <19 0x8>; + interrupt-parent = <&ipic>; + }; + }; + + sdhci@2e000 { + compatible = "fsl,mpc8377-esdhc", "fsl,mpc8379-esdhc"; + reg = <0x2e000 0x1000>; + interrupts = <42 0x8>; + interrupt-parent = <&ipic>; + /* Filled in by U-Boot */ + clock-frequency = <0>; }; }; @@ -176,6 +193,7 @@ interrupts = <38 0x8>; dr_mode = "host"; phy_type = "ulpi"; + sleep = <&pmc 0x00c00000>; }; mdio@24520 { @@ -226,6 +244,8 @@ interrupt-parent = <&ipic>; tbi-handle = <&tbi0>; phy-handle = <&phy2>; + sleep = <&pmc 0xc0000000>; + fsl,magic-packet; }; enet1: ethernet@25000 { @@ -240,6 +260,8 @@ interrupt-parent = <&ipic>; tbi-handle = <&tbi1>; phy-handle = <&phy3>; + sleep = <&pmc 0x30000000>; + fsl,magic-packet; }; serial0: serial@4500 { @@ -311,15 +333,7 @@ fsl,channel-fifo-len = <24>; fsl,exec-units-mask = <0x9fe>; fsl,descriptor-types-mask = <0x3ab0ebf>; - }; - - sdhci@2e000 { - compatible = "fsl,mpc8377-esdhc", "fsl,mpc8379-esdhc"; - reg = <0x2e000 0x1000>; - interrupts = <42 0x8>; - interrupt-parent = <&ipic>; - /* Filled in by U-Boot */ - clock-frequency = <0>; + sleep = <&pmc 0x03000000>; }; sata@18000 { @@ -327,6 +341,7 @@ reg = <0x18000 0x1000>; interrupts = <44 0x8>; interrupt-parent = <&ipic>; + sleep = <&pmc 0x000000c0>; }; sata@19000 { @@ -334,6 +349,7 @@ reg = <0x19000 0x1000>; interrupts = <45 0x8>; interrupt-parent = <&ipic>; + sleep = <&pmc 0x00000030>; }; /* IPIC @@ -349,6 +365,13 @@ #interrupt-cells = <2>; reg = <0x700 0x100>; }; + + pmc: power@b00 { + compatible = "fsl,mpc8377-pmc", "fsl,mpc8349-pmc"; + reg = <0xb00 0x100 0xa00 0x100>; + interrupts = <80 0x8>; + interrupt-parent = <&ipic>; + }; }; pci0: pci@e0008500 { @@ -403,6 +426,7 @@ ranges = <0x02000000 0x0 0x90000000 0x90000000 0x0 0x10000000 0x42000000 0x0 0x80000000 0x80000000 0x0 0x10000000 0x01000000 0x0 0x00000000 0xe0300000 0x0 0x00100000>; + sleep = <&pmc 0x00010000>; clock-frequency = <0>; #interrupt-cells = <1>; #size-cells = <2>; @@ -428,6 +452,7 @@ 0 0 0 2 &ipic 1 8 0 0 0 3 &ipic 1 8 0 0 0 4 &ipic 1 8>; + sleep = <&pmc 0x00300000>; clock-frequency = <0>; pcie@0 { @@ -459,6 +484,7 @@ 0 0 0 2 &ipic 2 8 0 0 0 3 &ipic 2 8 0 0 0 4 &ipic 2 8>; + sleep = <&pmc 0x000c0000>; clock-frequency = <0>; pcie@0 { -- cgit v1.2.2