From: Adam Ford Date: Sun, 10 Jan 2021 11:53:53 +0000 (-0600) Subject: arm64: dts: imx8mn-beacon-som: Configure RTC aliases X-Git-Tag: io_uring-worker.v3-2021-02-25~94^2~8^2~30 X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=18b9de73f06e474456699bd743a054de9b905706;p=linux-block.git arm64: dts: imx8mn-beacon-som: Configure RTC aliases On the i.MX8MN Beacon SOM, there is an RTC chip which is fed power from the baseboard during power off. The SNVS RTC integrated into the SoC is not fed power. Depending on the order the modules are loaded, this can be a problem if the external RTC isn't rtc0. Make the alias for rtc0 point to the external RTC all the time and rtc1 point to the SVNS in order to correctly hold date/time over a power-cycle. Signed-off-by: Adam Ford Reviewed-by: Krzysztof Kozlowski Signed-off-by: Shawn Guo --- diff --git a/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi index 67e5e5b9ddea..2120e6485393 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi @@ -4,6 +4,11 @@ */ / { + aliases { + rtc0 = &rtc; + rtc1 = &snvs_rtc; + }; + usdhc1_pwrseq: usdhc1_pwrseq { compatible = "mmc-pwrseq-simple"; pinctrl-names = "default"; @@ -212,7 +217,7 @@ reg = <0x50>; }; - rtc@51 { + rtc: rtc@51 { compatible = "nxp,pcf85263"; reg = <0x51>; };