On Wed, 2019-10-23 at 17:33 -0300, Fabio Estevam wrote:
On Wed, Oct 23, 2019 at 3:22 PM Robert Beckett bob.beckett@collabora.com wrote:
Enable DM imx WDT Enable SYSRESET_WATCHDOG to maintain WDT based reset ability
Signed-off-by: Robert Beckett bob.beckett@collabora.com
arch/arm/dts/imx6q-bx50v3.dts | 4 ++++ configs/ge_bx50v3_defconfig | 3 +++ 2 files changed, 7 insertions(+)
diff --git a/arch/arm/dts/imx6q-bx50v3.dts b/arch/arm/dts/imx6q- bx50v3.dts index 28a35394f0..2e2e3bbc24 100644 --- a/arch/arm/dts/imx6q-bx50v3.dts +++ b/arch/arm/dts/imx6q-bx50v3.dts @@ -18,6 +18,10 @@ ethernet0 = &fec; };
wdt-reboot {compatible = "wdt-reboot";wdt = <&wdog1>;};};
Looking at arch/arm/boot/dts/imx6q-bx50v3.dtsi from Linux, which includes arch/arm/boot/dts/imx6q-bx50v3.dtsi, the wdog definition is present:
&wdog1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_wdog>; fsl,ext-reset-output; };
So it would be better just use the same bindings in U-Boot without the need of deviating the device tree.
wdt-reboot is a node to represent the wdt based sysreset driver. It references the existing wdog1 via a phandle. See drivers/sysreset/sysreset_watchdog.c