[PATCH] udoo_neo: Convert to watchdog driver model

[Fabio Estevam]

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 gmail.com>
---
 arch/arm/dts/imx6sx-udoo-neo-basic-u-boot.dtsi | 12 ++++++++++++
 configs/udoo_neo_defconfig                     |  3 +++
 2 files changed, 15 insertions(+)

diff --git a/arch/arm/dts/imx6sx-udoo-neo-basic-u-boot.dtsi b/arch/arm/dts/imx6sx-udoo-neo-basic-u-boot.dtsi
index b5e1f2b9a16f..7f5a6424bac8 100644
--- a/arch/arm/dts/imx6sx-udoo-neo-basic-u-boot.dtsi
+++ b/arch/arm/dts/imx6sx-udoo-neo-basic-u-boot.dtsi
@@ -1,5 +1,13 @@
 // SPDX-License-Identifier: GPL-2.0+
 
+/ {
+	wdt-reboot {
+		compatible = "wdt-reboot";
+		wdt = <&wdog1>;
+		bootph-pre-ram;
+	};
+};
+
 &soc {
 	bootph-all;
 };
@@ -15,3 +23,7 @@
 &uart1 {
 	bootph-all;
 };
+
+&wdog1 {
+	bootph-pre-ram;
+};
diff --git a/configs/udoo_neo_defconfig b/configs/udoo_neo_defconfig
index 4986b4c26260..9f9ad0ad5ec7 100644
--- a/configs/udoo_neo_defconfig
+++ b/configs/udoo_neo_defconfig
@@ -61,5 +61,8 @@ CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_ANATOP=y
 CONFIG_DM_SERIAL=y
 CONFIG_MXC_UART=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_WATCHDOG=y
 CONFIG_IMX_THERMAL=y
 CONFIG_USB=y
+CONFIG_IMX_WATCHDOG=y
-- 
2.34.1