pico-pi-imx7d: Convert to watchdog driver model
Commit 68dcbdd594d4 ("ARM: imx: Add weak default reset_cpu()") caused
the 'reset' command in U-Boot to not cause a board reset.
Fix it by switching to the watchdog driver model via sysreset, which
is the preferred method for implementing the watchdog reset
Signed-off-by: Fabio Estevam <festevam@denx.de>
diff --git a/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi b/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi
index 843b458..c685682 100644
--- a/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi
+++ b/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi
@@ -6,6 +6,12 @@
usb0 = &usbotg1;
display0 = &lcdif;
};
+
+ wdt-reboot {
+ compatible = "wdt-reboot";
+ wdt = <&wdog1>;
+ bootph-pre-ram;
+ };
};
&usbotg1 {
@@ -45,6 +51,10 @@
};
};
+&wdog1 {
+ bootph-pre-ram;
+};
+
&iomuxc {
pinctrl_backlight: backlight {
fsl,pins = <
diff --git a/configs/pico-pi-imx7d_defconfig b/configs/pico-pi-imx7d_defconfig
index 48364c7..5b615da 100644
--- a/configs/pico-pi-imx7d_defconfig
+++ b/configs/pico-pi-imx7d_defconfig
@@ -76,6 +76,8 @@
CONFIG_DM_PMIC_PFUZE100=y
CONFIG_DM_SERIAL=y
CONFIG_MXC_UART=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_WATCHDOG=y
CONFIG_IMX_THERMAL=y
CONFIG_USB=y
CONFIG_SPL_USB_HOST=y
@@ -95,3 +97,4 @@
CONFIG_SPLASH_SCREEN=y
CONFIG_SPLASH_SCREEN_ALIGN=y
CONFIG_BMP_16BPP=y
+CONFIG_IMX_WATCHDOG=y