From aa4f48a4e06c6df218fdf9b69ef18bc2591d5953 Mon Sep 17 00:00:00 2001 From: Andrej Picej Date: Wed, 19 Jul 2023 13:43:28 +0200 Subject: [PATCH] ARM: dts: imx6: phycore: Rely on PMIC reboot/reset handler MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Due to the missing signal connection between i.MX6 WDOG_B pin and the PMICs external reset, the internal i.MX6 watchdog is not able to reset the phyCORE i.MX6 SoM properly. Thus disable the internal i.MX6 watchdog to prevent unexpected PMIC settings after reset. NOTE: This patch should not be backported as it might break existing uses and fixes in bootloaders. Signed-off-by: Andrej Picej Reviewed-by: Stefan Riedmüller Signed-off-by: Shawn Guo --- arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi index 28a805384668f..86b4269e0e011 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi @@ -309,3 +309,11 @@ >; }; }; + +&wdog1 { + /* + * Rely on PMIC reboot handler. Internal i.MX6 watchdog, that is also + * used for reboot, does not reset all external PMIC voltages on reset. + */ + status = "disabled"; +}; -- 2.30.2