[PATCH 2/2] mx6sabresd: Convert to watchdog driver model
Fabio Estevam
festevam at gmail.com
Fri Feb 2 02:48:49 CET 2024
From: Fabio Estevam <festevam at denx.de>
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 at denx.de>
---
arch/arm/dts/imx6qdl-sabresd-u-boot.dtsi | 9 +++++++++
configs/mx6sabresd_defconfig | 3 +++
2 files changed, 12 insertions(+)
diff --git a/arch/arm/dts/imx6qdl-sabresd-u-boot.dtsi b/arch/arm/dts/imx6qdl-sabresd-u-boot.dtsi
index 5c4101b76da2..9e9c4422f00e 100644
--- a/arch/arm/dts/imx6qdl-sabresd-u-boot.dtsi
+++ b/arch/arm/dts/imx6qdl-sabresd-u-boot.dtsi
@@ -9,6 +9,11 @@
aliases {
mmc1 = &usdhc3;
};
+ wdt-reboot {
+ compatible = "wdt-reboot";
+ wdt = <&wdog2>;
+ bootph-pre-ram;
+ };
};
&usdhc3 {
@@ -18,3 +23,7 @@
&pinctrl_usdhc3 {
bootph-pre-ram;
};
+
+&wdog2 {
+ bootph-pre-ram;
+};
diff --git a/configs/mx6sabresd_defconfig b/configs/mx6sabresd_defconfig
index f19df607e7ae..69685f12eb10 100644
--- a/configs/mx6sabresd_defconfig
+++ b/configs/mx6sabresd_defconfig
@@ -103,6 +103,8 @@ CONFIG_DM_REGULATOR_FIXED=y
CONFIG_DM_REGULATOR_GPIO=y
CONFIG_DM_SERIAL=y
CONFIG_MXC_UART=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_WATCHDOG=y
CONFIG_SPI=y
CONFIG_DM_SPI=y
CONFIG_MXC_SPI=y
@@ -129,3 +131,4 @@ CONFIG_IMX_HDMI=y
CONFIG_SPLASH_SCREEN=y
CONFIG_SPLASH_SCREEN_ALIGN=y
CONFIG_BMP_16BPP=y
+CONFIG_IMX_WATCHDOG=y
--
2.34.1
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