[2/2] arm64: dts: fsl: imx8mq-evk: enable watchdog
diff mbox

Message ID 78318e96c952c5f84644e7035cdefe76f27a9e3c.1517816731.git.baruch@tkos.co.il
State New, archived
Headers show

Commit Message

Baruch Siach Feb. 5, 2018, 7:45 a.m. UTC
The external nWDOG signal connects to the EVK board reset circuit.

Tested on the i.MX8MQ EVK rev B3.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
---
 arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

Comments

Lucas Stach Feb. 5, 2018, 11:12 a.m. UTC | #1
Am Montag, den 05.02.2018, 09:45 +0200 schrieb Baruch Siach:
> The external nWDOG signal connects to the EVK board reset circuit.
> 
> Tested on the i.MX8MQ EVK rev B3.
> 
> Signed-off-by: Baruch Siach <baruch@tkos.co.il>
> ---
>  arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
> b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
> index c0e5ee5d6243..757ba226a2fc 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
> @@ -170,6 +170,13 @@
>  	status = "okay";
>  };
>  
> +&wdog1 {
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_wdog>;
> +	fsl,ext-reset-output;
> +	status = "okay";
> +};
> +
>  &iomuxc {
>  	pinctrl_fec1_mdc: fec1mdcgrp {
>  		pinmux = <MX8MQ_IOMUXC_ENET_MDC_ENET1_MDC>;
> @@ -402,4 +409,12 @@
>  		bias-pull-up;
>  		input-schmitt-enable;
>  	};
> +
> +	pinctrl_wdog: wdoggrp {
> +		fsl,pins = <MX8MQ_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B>;
> +		drive-strength = <6>;
> +		slew-rate = <0>;
> +		bias-pull-up;
> +		input-schmitt-enable;

This might be a plain copy of the downstream pinctrl, but the watchdog
pin being an output, does it really make sense to enable the schmitt-
trigger?

Regards,
Lucas

Patch
diff mbox

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
index c0e5ee5d6243..757ba226a2fc 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts
@@ -170,6 +170,13 @@ 
 	status = "okay";
 };
 
+&wdog1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
+	status = "okay";
+};
+
 &iomuxc {
 	pinctrl_fec1_mdc: fec1mdcgrp {
 		pinmux = <MX8MQ_IOMUXC_ENET_MDC_ENET1_MDC>;
@@ -402,4 +409,12 @@ 
 		bias-pull-up;
 		input-schmitt-enable;
 	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <MX8MQ_IOMUXC_GPIO1_IO02_WDOG1_WDOG_B>;
+		drive-strength = <6>;
+		slew-rate = <0>;
+		bias-pull-up;
+		input-schmitt-enable;
+	};
 };