[PATCH 2/3] mx7dsabresd: Convert to watchdog driver model

[Fabio Estevam <festevam@gmail.com>]

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-sdb-u-boot.dtsi | 12 ++++++++++++
 configs/mx7dsabresd_defconfig      |  3 +++
 2 files changed, 15 insertions(+)

diff --git a/arch/arm/dts/imx7d-sdb-u-boot.dtsi b/arch/arm/dts/imx7d-sdb-u-boot.dtsi
index 818528c418f5..2e234b6b5828 100644
--- a/arch/arm/dts/imx7d-sdb-u-boot.dtsi
+++ b/arch/arm/dts/imx7d-sdb-u-boot.dtsi
@@ -1,5 +1,13 @@
 // SPDX-License-Identifier: GPL-2.0+ OR MIT
 
+/ {
+	wdt-reboot {
+		compatible = "wdt-reboot";
+		wdt = <&wdog1>;
+		bootph-pre-ram;
+	};
+};
+
 &fec2 {
 	status = "disable";
 };
@@ -58,3 +66,7 @@
 		>;
 	};
 };
+
+&wdog1 {
+	bootph-pre-ram;
+};
diff --git a/configs/mx7dsabresd_defconfig b/configs/mx7dsabresd_defconfig
index 26e68d30d267..1c8105f44f28 100644
--- a/configs/mx7dsabresd_defconfig
+++ b/configs/mx7dsabresd_defconfig
@@ -73,6 +73,8 @@ CONFIG_MXC_UART=y
 CONFIG_SPI=y
 CONFIG_DM_SPI=y
 CONFIG_SOFT_SPI=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_WATCHDOG=y
 CONFIG_IMX_THERMAL=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
@@ -85,4 +87,5 @@ CONFIG_USB_GADGET_VENDOR_NUM=0x0525
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_IMX_WATCHDOG=y
 CONFIG_ERRNO_STR=y
-- 
2.34.1