diff options
| author | Christian Hewitt <christianshewitt@gmail.com> | 2020-11-16 06:41:47 +0000 |
|---|---|---|
| committer | Kevin Hilman <khilman@baylibre.com> | 2020-11-30 15:54:24 -0800 |
| commit | 287eb2be4037c3d8d96b5d9490fa0e695e4553b9 (patch) | |
| tree | dfc454fcdd7e90e9dd0576b1d6a64a09e217313a /arch/arm64/boot/dts/amlogic/meson-axg.dtsi | |
| parent | e059eda7ee513347b330b607ea4f07dd1d3666e1 (diff) | |
arm64: dts: meson: enable rtc node on Khadas VIM1/VIM2 boards
Enable the rtc node on VIM1/VIM2 boards so users can simply attach a power
cell and use the on-board RTC without modifying the device-tree.
Cold boot with no cell attached is gracefully handled:
VIM2:~ # dmesg | grep rtc
[ 7.716150] rtc-hym8563 1-0051: no valid clock/calendar values available
[ 7.716957] rtc-hym8563 1-0051: registered as rtc0
[ 7.729850] rtc-hym8563 1-0051: no valid clock/calendar values available
[ 7.729877] rtc-hym8563 1-0051: hctosys: unable to read the hardware clock
[ 8.126768] rtc-hym8563 1-0051: no valid clock/calendar values available
Warm boot (and any boot with cell attached) recalls stored values resulting
in consistently faster (re)boot times:
VIM2:~ # dmesg | grep rtc
[ 7.441671] rtc-hym8563 1-0051: registered as rtc0
[ 7.442663] rtc-hym8563 1-0051: setting system clock to 2020-11-16T05:49:59 UTC (1605505799)
Suggested-by: Artem Lapkin <art@khadas.com>
Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20201116064147.12062-1-christianshewitt@gmail.com
Diffstat (limited to 'arch/arm64/boot/dts/amlogic/meson-axg.dtsi')
0 files changed, 0 insertions, 0 deletions