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/imx7s-warp-u-boot.dtsi | 10 ++++++++++ configs/warp7_defconfig | 3 +++ 2 files changed, 13 insertions(+)
diff --git a/arch/arm/dts/imx7s-warp-u-boot.dtsi b/arch/arm/dts/imx7s-warp-u-boot.dtsi index 4f44598c9a27..98784fd7a2ef 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 26d992d3c2d8..4ceb0a4f2917 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