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Commit eecfe981 authored by Chris Zhong's avatar Chris Zhong Committed by Heiko Stuebner
Browse files

ARM: dts: rockchip: add RK3288 suspend support 



add pmu sram node for suspend, add global_pwroff pinctrl.
The pmu sram is used to store the resume code.
global_pwroff is held low level at work, it would be pull to high
when entering suspend. reference this in the board DTS file since
some boards need it.

Signed-off-by: default avatarTony Xie <xxx@rock-chips.com>
Signed-off-by: default avatarChris Zhong <zyw@rock-chips.com>
Reviewed-by: default avatarDoug Anderson <dianders@chromium.org>
Tested-by: default avatarDoug Anderson <dianders@chromium.org>
Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
parent f74ba117

arch/arm/boot/dts/rk3288.dtsi

+23 −0
Original line number Diff line number Diff line
@@ -506,6 +506,11 @@ 
		};

	};



	sram@ff720000 {

		compatible = "rockchip,rk3288-pmu-sram", "mmio-sram";

		reg = <0xff720000 0x1000>;

	};



	pmu: power-management@ff730000 {

		compatible = "rockchip,rk3288-pmu", "syscon";

		reg = <0xff730000 0x100>;
@@ -729,6 +734,24 @@ 
			bias-disable;

		};



		sleep {

			global_pwroff: global-pwroff {

				rockchip,pins = <0 0 RK_FUNC_1 &pcfg_pull_none>;

			};



			ddrio_pwroff: ddrio-pwroff {

				rockchip,pins = <0 1 RK_FUNC_1 &pcfg_pull_none>;

			};



			ddr0_retention: ddr0-retention {

				rockchip,pins = <0 2 RK_FUNC_1 &pcfg_pull_up>;

			};



			ddr1_retention: ddr1-retention {

				rockchip,pins = <0 3 RK_FUNC_1 &pcfg_pull_up>;

			};

		};



		i2c0 {

			i2c0_xfer: i2c0-xfer {

				rockchip,pins = <0 15 RK_FUNC_1 &pcfg_pull_none>,