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ARM: dts: imx6: pfla02: Rely on PMIC reboot/reset handler

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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 phyFLEX 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 <andrej.picej@norik.com>
Reviewed-by: Stefan Riedmüller <s.riedmueller@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Andrej Picej 2023-07-19 13:43:27 +02:00 committed by Shawn Guo
parent d56b70c4e8
commit 0d03a557eb
1 changed files with 8 additions and 0 deletions
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8
arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-pfla02.dtsi
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@ -456,3 +456,11 @@ &usdhc3 {
vmmc-supply = <&vdd_sd0_reg>;
status = "disabled";
};
&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";
};