From mboxrd@z Thu Jan 1 00:00:00 1970 From: b38343@freescale.com (Robin Gong) Date: Fri, 26 Sep 2014 11:59:05 +0800 Subject: [PATCH v4 1/3] ARM: dts: imx6: add pm_power_off support for i.mx6 chips In-Reply-To: <1411703947-31956-1-git-send-email-b38343@freescale.com> References: <1411703947-31956-1-git-send-email-b38343@freescale.com> Message-ID: <1411703947-31956-2-git-send-email-b38343@freescale.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org All chips of i.mx6 can be powered off by programming SNVS. For example : On i.mx6q-sabresd board, PMIC_ON_REQ connect with external pmic ON/OFF pin, that will cause the whole PMIC powered off except VSNVS. And system can restart once PMIC_ON_REQ goes high by push POWRER key. --- arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 4 ++++ arch/arm/boot/dts/imx6qdl.dtsi | 6 ++++++ arch/arm/boot/dts/imx6sl-evk.dts | 4 ++++ arch/arm/boot/dts/imx6sl.dtsi | 6 ++++++ arch/arm/boot/dts/imx6sx-sdb.dts | 4 ++++ arch/arm/boot/dts/imx6sx.dtsi | 6 ++++++ 6 files changed, 30 insertions(+) diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi index baf2f00..05f5ff7 100644 --- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi +++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi @@ -531,6 +531,10 @@ status = "okay"; }; +&snvs_poweroff { + status = "okay"; +}; + &ssi2 { status = "okay"; }; diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi index 9596ed5..ac0453f 100644 --- a/arch/arm/boot/dts/imx6qdl.dtsi +++ b/arch/arm/boot/dts/imx6qdl.dtsi @@ -657,6 +657,12 @@ interrupts = <0 19 IRQ_TYPE_LEVEL_HIGH>, <0 20 IRQ_TYPE_LEVEL_HIGH>; }; + + snvs_poweroff: snvs-poweroff at 38 { + compatible = "fsl,sec-v4.0-poweroff"; + reg = <0x38 0x4>; + status = "disabled"; + }; }; epit1: epit at 020d0000 { /* EPIT1 */ diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts index 898d14f..fda4932 100644 --- a/arch/arm/boot/dts/imx6sl-evk.dts +++ b/arch/arm/boot/dts/imx6sl-evk.dts @@ -580,6 +580,10 @@ status = "okay"; }; +&snvs_poweroff { + status = "okay"; +}; + &ssi2 { status = "okay"; }; diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi index dfd83e6..36ab8e0 100644 --- a/arch/arm/boot/dts/imx6sl.dtsi +++ b/arch/arm/boot/dts/imx6sl.dtsi @@ -574,6 +574,12 @@ interrupts = <0 19 IRQ_TYPE_LEVEL_HIGH>, <0 20 IRQ_TYPE_LEVEL_HIGH>; }; + + snvs_poweroff: snvs-poweroff at 38 { + compatible = "fsl,sec-v4.0-poweroff"; + reg = <0x38 0x4>; + status = "disabled"; + }; }; epit1: epit at 020d0000 { diff --git a/arch/arm/boot/dts/imx6sx-sdb.dts b/arch/arm/boot/dts/imx6sx-sdb.dts index 82d6b34..182db49 100644 --- a/arch/arm/boot/dts/imx6sx-sdb.dts +++ b/arch/arm/boot/dts/imx6sx-sdb.dts @@ -304,6 +304,10 @@ status = "okay"; }; +&snvs_poweroff { + status = "okay"; +}; + &ssi2 { status = "okay"; }; diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi index 888dd76..d8e3eca 100644 --- a/arch/arm/boot/dts/imx6sx.dtsi +++ b/arch/arm/boot/dts/imx6sx.dtsi @@ -671,6 +671,12 @@ reg = <0x34 0x58>; interrupts = , ; }; + + snvs_poweroff: snvs-poweroff at 38 { + compatible = "fsl,sec-v4.0-poweroff"; + reg = <0x38 0x4>; + status = "disabled"; + }; }; epit1: epit at 020d0000 { -- 1.7.9.5