From: Fabio Estevam <festevam@gmail.com>
To: sbabic@denx.de
Cc: u-boot@lists.denx.de, Fabio Estevam <festevam@denx.de>
Subject: [PATCH] pico-pi-imx7d: Convert to watchdog driver model
Date: Thu, 26 Oct 2023 18:01:53 -0300 [thread overview]
Message-ID: <20231026210153.26886-1-festevam@gmail.com> (raw)
From: Fabio Estevam <festevam@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@denx.de>
---
arch/arm/dts/imx7d-pico-pi-u-boot.dtsi | 10 ++++++++++
configs/pico-pi-imx7d_defconfig | 3 +++
2 files changed, 13 insertions(+)
diff --git a/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi b/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi
index 843b4583e53a..c6856823c64d 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 48364c7548ee..5b615daf4a87 100644
--- a/configs/pico-pi-imx7d_defconfig
+++ b/configs/pico-pi-imx7d_defconfig
@@ -76,6 +76,8 @@ CONFIG_DM_PMIC=y
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_SYS_WHITE_ON_BLACK=y
CONFIG_SPLASH_SCREEN=y
CONFIG_SPLASH_SCREEN_ALIGN=y
CONFIG_BMP_16BPP=y
+CONFIG_IMX_WATCHDOG=y
--
2.34.1
next reply other threads:[~2023-10-26 21:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-26 21:01 Fabio Estevam [this message]
2023-12-12 16:15 ` [PATCH] pico-pi-imx7d: Convert to watchdog driver model Fabio Estevam
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