From: Fabio Estevam <festevam@gmail.com>
Date: Wed, 27 Mar 2024 13:46:51 +0000 (-0300)
Subject: warp7: Convert to watchdog driver model
X-Git-Url: http://git.dujemihanovic.xyz/%22http:/www.sics.se/static/%7B%7B%20.RelPermalink%20%7D%7D?a=commitdiff_plain;h=ea2b074a1ca646a9a88454753af0676599917b02;p=u-boot.git

warp7: 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@gmail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
---

diff --git a/arch/arm/dts/imx7s-warp-u-boot.dtsi b/arch/arm/dts/imx7s-warp-u-boot.dtsi
index 4f44598c9a..98784fd7a2 100644
--- a/arch/arm/dts/imx7s-warp-u-boot.dtsi
+++ b/arch/arm/dts/imx7s-warp-u-boot.dtsi
@@ -7,6 +7,12 @@
 	chosen {
 		stdout-path = &uart1;
 	};
+
+	wdt-reboot {
+		compatible = "wdt-reboot";
+		wdt = <&wdog1>;
+		bootph-pre-ram;
+	};
 };
 
 &aips3 {
@@ -24,3 +30,7 @@
 &uart1 {
 	bootph-all;
 };
+
+&wdog1 {
+	bootph-pre-ram;
+};
diff --git a/configs/warp7_defconfig b/configs/warp7_defconfig
index 9b518a121b..48042b702c 100644
--- a/configs/warp7_defconfig
+++ b/configs/warp7_defconfig
@@ -67,6 +67,8 @@ CONFIG_DM_REGULATOR_GPIO=y
 CONFIG_SPECIFY_CONSOLE_INDEX=y
 CONFIG_DM_SERIAL=y
 CONFIG_MXC_UART=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_WATCHDOG=y
 CONFIG_IMX_THERMAL=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
@@ -80,5 +82,6 @@ CONFIG_USB_GADGET_DOWNLOAD=y
 CONFIG_USB_ETHER=y
 CONFIG_USB_ETH_CDC=y
 CONFIG_USBNET_HOST_ADDR="de:ad:be:af:00:00"
+CONFIG_IMX_WATCHDOG=y
 CONFIG_OPTEE_TZDRAM_SIZE=0x3000000
 CONFIG_BOOTM_OPTEE=y