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board/aarch64: disable rtc on styx, all revs

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The RTC in the CN913x series does not have any "valid" bit, and this
board (all revs) does not have any backup power connected, so it will
return garbage values after every vold boot.

It was therefore decided to disable the RTC completely and set system
time manually, or using an NTP client.  This way any time skips would
only ever be forward, never backwards.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit is contained in:
Joachim Wiberg
2024-11-03 22:14:00 +01:00
parent fbddedb51b
commit ae82f7fdcf
1 changed files with 8 additions and 0 deletions
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board/aarch64/dts/styx/dcp-sc-28p.dtsi
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@@ -33,6 +33,14 @@
};
};
/*
* RTC has no valid bit, and this board does not connect any
* backup power (e.g. supercap) to it, so it returns garbage
* after every cold reset.
*/
&cp0_rtc {
status = "disabled";
};
/* UART0 (Console) */