[PATCH v1 0/3] arm64: dts: amlogic: meson-s4: enable RTC and IR for Khadas VIM1S

[PATCH v1 0/3] arm64: dts: amlogic: meson-s4: enable RTC and IR for Khadas VIM1S

[Nick Xie]

This series adds support for the Real Time Clock (RTC) on the Amlogic 
Meson S4 (S905Y4) SoC and enables the hardware RTC and IR receiver on 
the Khadas VIM1S board.

- Patch 1 adds the internal Virtual RTC (VRTC) controller node to the 
  Meson S4 SoC dtsi.
- Patch 2 enables the I2C-attached Haoyu Micro HYM8563 RTC on the 
  Khadas VIM1S board. It also sets up aliases to ensure the hardware 
  RTC is prioritized as rtc0 over the VRTC.
- Patch 3 configures the default keymap to "rc-khadas" to support the 
  official Khadas IR remote control.

Nick Xie (3):
  arm64: dts: amlogic: meson-s4: add VRTC node
  arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: enable HYM8563 RTC
  arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: use rc-khadas
    keymap

 .../dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts | 16 ++++++++++++++++
 arch/arm64/boot/dts/amlogic/meson-s4.dtsi        |  5 +++++
 2 files changed, 21 insertions(+)

-- 
2.34.1

[PATCH v1 1/3] arm64: dts: amlogic: meson-s4: add VRTC node

[Nick Xie]

Add the Virtual RTC (VRTC) controller node to the Meson S4 SoC dtsi.

Signed-off-by: Nick Xie <nick@khadas.com>
---
 arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
index 936a5c1353d15..2a6fbd5308362 100644
--- a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
@@ -59,6 +59,11 @@ psci {
 		method = "smc";
 	};
 
+	vrtc: rtc@fe010288 {
+		compatible = "amlogic,meson-vrtc";
+		reg = <0x0 0xfe010288 0x0 0x4>;
+	};
+
 	xtal: xtal-clk {
 		compatible = "fixed-clock";
 		clock-frequency = <24000000>;
-- 
2.34.1

[PATCH v1 2/3] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: enable HYM8563 RTC

[Nick Xie]

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 <nick@khadas.com>
---
 .../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 @@ &ethmac {
 	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

[PATCH v1 3/3] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: use rc-khadas keymap

[Nick Xie]

The Khadas VIM1S board has an onboard IR receiver.
Configure the default keymap to "rc-khadas" to support the official
Khadas IR remote control.

Signed-off-by: Nick Xie <nick@khadas.com>
---
 arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts | 1 +
 1 file changed, 1 insertion(+)

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 7314e0ab81da3..99d5df71b9cd4 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
@@ -242,6 +242,7 @@ &ir {
 	status = "okay";
 	pinctrl-0 = <&remote_pins>;
 	pinctrl-names = "default";
+	linux,rc-map-name = "rc-khadas";
 };
 
 &pwm_ef {
-- 
2.34.1

Re: [PATCH v1 1/3] arm64: dts: amlogic: meson-s4: add VRTC node

[neil.armstrong]

On 3/27/26 10:30, Nick Xie wrote:
> Add the Virtual RTC (VRTC) controller node to the Meson S4 SoC dtsi.
> 
> Signed-off-by: Nick Xie <nick@khadas.com>
> ---
>   arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 5 +++++
>   1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
> index 936a5c1353d15..2a6fbd5308362 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi
> @@ -59,6 +59,11 @@ psci {
>   		method = "smc";
>   	};
>   
> +	vrtc: rtc@fe010288 {
> +		compatible = "amlogic,meson-vrtc";
> +		reg = <0x0 0xfe010288 0x0 0x4>;
> +	};
> +
>   	xtal: xtal-clk {
>   		compatible = "fixed-clock";
>   		clock-frequency = <24000000>;

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

Thanks,
Neil

Re: [PATCH v1 2/3] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: enable HYM8563 RTC

[neil.armstrong]

On 3/27/26 10:30, Nick Xie wrote:
> 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 <nick@khadas.com>
> ---
>   .../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 @@ &ethmac {
>   	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>;

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

Thanks,
Neil

Re: [PATCH v1 3/3] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: use rc-khadas keymap

[neil.armstrong]

On 3/27/26 10:30, Nick Xie wrote:
> The Khadas VIM1S board has an onboard IR receiver.
> Configure the default keymap to "rc-khadas" to support the official
> Khadas IR remote control.
> 
> Signed-off-by: Nick Xie <nick@khadas.com>
> ---
>   arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts | 1 +
>   1 file changed, 1 insertion(+)
> 
> 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 7314e0ab81da3..99d5df71b9cd4 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
> @@ -242,6 +242,7 @@ &ir {
>   	status = "okay";
>   	pinctrl-0 = <&remote_pins>;
>   	pinctrl-names = "default";
> +	linux,rc-map-name = "rc-khadas";
>   };
>   
>   &pwm_ef {

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>

Thanks,
Neil