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| author | Adam Ford <aford173@gmail.com> | 2020-11-26 04:45:34 -0600 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2020-12-01 09:49:39 +0800 |
| commit | 6b5cd77371e5e34769284bfb058ff332ae278cc5 (patch) | |
| tree | 05178952706d430b5e3b04cddbf73aa4e5a2c746 | |
| parent | b9cf7d3b6592561e2a9f123a989f7dd5708a61d3 (diff) | |
| download | linux-6b5cd77371e5e34769284bfb058ff332ae278cc5.tar.gz | |
arm64: dts: imx8mm-beacon-som: Configure RTC aliases
On the i.MX8MM 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 <aford173@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi index 6b53830ddf74..8380fd4047d4 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-beacon-som.dtsi @@ -4,6 +4,11 @@ */ / { + aliases { + rtc0 = &rtc; + rtc1 = &snvs_rtc; + }; + usdhc1_pwrseq: usdhc1_pwrseq { compatible = "mmc-pwrseq-simple"; pinctrl-names = "default"; @@ -218,7 +223,7 @@ reg = <0x50>; }; - rtc@51 { + rtc: rtc@51 { compatible = "nxp,pcf85263"; reg = <0x51>; }; |