[PATCH v1 2/3] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: enable HYM8563 RTC
From: Nick Xie <hidden>
Date: 2026-03-27 09:30:41
Also in:
linux-amlogic, linux-devicetree, lkml
Subsystem:
arm/amlogic meson soc support, the rest · Maintainers:
Neil Armstrong, Kevin Hilman, Linus Torvalds
The Khadas VIM1S board has an on-board Haoyu Micro HYM8563 Real Time Clock (RTC) connected to the I2C1 bus. Enable the I2C1 controller and add the RTC child node to support hardware clock persistence. Signed-off-by: Nick Xie <redacted> --- .../dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts | 15 +++++++++++++++ 1 file changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
index 792ab45c4c944..7314e0ab81da3 100644
--- a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts@@ -20,6 +20,8 @@ aliases { mmc0 = &emmc; /* eMMC */ mmc1 = &sd; /* SD card */ mmc2 = &sdio; /* SDIO */ + rtc0 = &rtc; + rtc1 = &vrtc; serial0 = &uart_b; };
@@ -223,6 +225,19 @@ ðmac { phy-mode = "rmii"; }; +&i2c1 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins2>; + clock-frequency = <100000>; + + rtc: rtc@51 { + compatible = "haoyu,hym8563"; + reg = <0x51>; + #clock-cells = <0>; + }; +}; + &ir { status = "okay"; pinctrl-0 = <&remote_pins>;
--
2.34.1