[PATCH v3 1/5] powerpc/dts: add mcke-gpios for PM feature
From: Chenhui Zhao <hidden>
Date: 2016-08-02 15:07:13
Signed-off-by: Chenhui Zhao <redacted> --- Documentation/devicetree/bindings/soc/fsl/rcpm.txt | 13 +++++++++++++ arch/powerpc/boot/dts/fsl/t1040si-post.dtsi | 3 +++ 2 files changed, 16 insertions(+)
diff --git a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt
index e284e4e..1d44a80 100644
--- a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt
+++ b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt@@ -21,6 +21,10 @@ Required properites: * "fsl,qoriq-rcpm-2.0": for chassis 2.0 rcpm * "fsl,qoriq-rcpm-2.1": for chassis 2.1 rcpm +Optional properites: + - mcke-gpios : The GPIO pin is used for keeping the MCKE signal of DDR modules + low in the LPM35 state on some platforms, such as T1040. + All references to "1.0" and "2.0" refer to the QorIQ chassis version to which the chip complies. Chassis Version Example Chips
@@ -37,6 +41,15 @@ The RCPM node for T4240: fsl,#rcpm-wakeup-cells = <2>; }; +The RCPM node for T1040 (which supports LPM35 state): + rcpm: global-utilities@e2000 { + compatible = "fsl,t1040-rcpm", "fsl,qoriq-rcpm-2.1"; + reg = <0xe2000 0x1000>; + fsl,#rcpm-wakeup-cells = <1>; + mcke-gpios = <&gpio0 29 GPIO_ACTIVE_HIGH> + }; + + * Freescale RCPM Wakeup Source Device Tree Bindings ------------------------------------------- Required fsl,rcpm-wakeup property should be added to a device node if the device
diff --git a/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi b/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi
index 507649e..f66e7dd 100644
--- a/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi@@ -33,6 +33,7 @@ */ #include <dt-bindings/thermal/thermal.h> +#include <dt-bindings/gpio/gpio.h> &bman_fbpr { compatible = "fsl,bman-fbpr";
@@ -474,6 +475,8 @@ rcpm: global-utilities@e2000 { compatible = "fsl,t1040-rcpm", "fsl,qoriq-rcpm-2.1"; reg = <0xe2000 0x1000>; + fsl,#rcpm-wakeup-cells = <1>; + mcke-gpios = <&gpio0 29 GPIO_ACTIVE_HIGH>; }; sfp: sfp@e8000 {
--
1.9.1