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ARM: dts: rockchip: add RK3288 suspend support

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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: Tony Xie <xxx@rock-chips.com>
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Chris Zhong 2014-12-01 16:52:19 +08:00 committed by Heiko Stuebner
parent f74ba117da
commit eecfe981ce
1 changed files with 23 additions and 0 deletions
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23
arch/arm/boot/dts/rk3288.dtsi
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@ -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>,