i.MX6UL can be powered off by programming SNVS.
When long press ON/OFF button(5 seconds),
PMIC_ON_REQ pin will be set to low and external
PMIC will be powered off.
And system can be powered on by long press ON/OFF
button again.
Signed-off-by: Anson Huang <b20788@xxxxxxxxxxxxx>
---
arch/arm/boot/dts/imx6ul-14x14-evk.dts | 4 ++++
arch/arm/boot/dts/imx6ul.dtsi | 8 ++++++++
2 files changed, 12 insertions(+)
diff --git a/arch/arm/boot/dts/imx6ul-14x14-evk.dts b/arch/arm/boot/dts/imx6ul-14x14-evk.dts
index ee2243b..c27f3c4 100644
--- a/arch/arm/boot/dts/imx6ul-14x14-evk.dts
+++ b/arch/arm/boot/dts/imx6ul-14x14-evk.dts
@@ -58,6 +58,10 @@
};
};
+&snvs_poweroff {
+ status = "okay";
+};
+
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_uart1>;
diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi
index 514ae43..446913e 100644
--- a/arch/arm/boot/dts/imx6ul.dtsi
+++ b/arch/arm/boot/dts/imx6ul.dtsi
@@ -404,6 +404,14 @@
interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
};
+ snvs_poweroff: snvs-poweroff {
+ compatible = "syscon-poweroff";
+ regmap = <&snvs>;
+ offset = <0x38>;
+ mask = <0x60>;
+ status = "disabled";
+ };
+
snvs_pwrkey: snvs-powerkey {
compatible = "fsl,sec-v4.0-pwrkey";
regmap = <&snvs>;
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
