Re: [PATCH 09/13] arm64: dts: freescale: imx93-phyboard-segin: Add RTC support

Frank Li
2025-04-10T15:13:00Z

On Thu, Apr 10, 2025 at 11:02:47AM +0200, Primoz Fiser wrote:
> Add support for RTC clock connected via I2C on phyBOARD-Segin-i.MX93.
> Make I2C RTC the default clock by configuring the aliases.

"Add support for RTC connected via I2C on phyBOARD-Segin-i.MX93. Set
default RTC by configuring the aliases."

Frank
>
> Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
> ---
> .../dts/freescale/imx93-phyboard-segin.dts | 36 +++++++++++++++++++
> 1 file changed, 36 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts b/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts
> index 525f52789f8b..38b89398e646 100644
> --- a/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts
> +++ b/arch/arm64/boot/dts/freescale/imx93-phyboard-segin.dts
> @@ -17,6 +17,11 @@ /{
> compatible = "phytec,imx93-phyboard-segin", "phytec,imx93-phycore-som",
> "fsl,imx93";
>
> + aliases {
> + rtc0 = &i2c_rtc;
> + rtc1 = &bbnsm_rtc;
> + };
> +
> chosen {
> stdout-path = &lpuart1;
> };
> @@ -33,6 +38,24 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
> };
> };
>
> +/* I2C2 */
> +&lpi2c2 {
> + clock-frequency = <400000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_lpi2c2>;
> + status = "okay";
> +
> + /* RTC */
> + i2c_rtc: rtc@68 {
> + compatible = "microcrystal,rv4162";
> + reg = <0x68>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_rtc>;
> + interrupt-parent = <&gpio4>;
> + interrupts = <26 IRQ_TYPE_LEVEL_LOW>;
> + };
> +};
> +
> /* Console */
> &lpuart1 {
> pinctrl-names = "default";
> @@ -56,6 +79,13 @@ &usdhc2 {
> };
>
> &iomuxc {
> + pinctrl_lpi2c2: lpi2c2grp {
> + fsl,pins = <
> + MX93_PAD_I2C2_SCL__LPI2C2_SCL 0x40000b9e
> + MX93_PAD_I2C2_SDA__LPI2C2_SDA 0x40000b9e
> + >;
> + };
> +
> pinctrl_uart1: uart1grp {
> fsl,pins = <
> MX93_PAD_UART1_RXD__LPUART1_RX 0x31e
> @@ -69,6 +99,12 @@ MX93_PAD_SD2_RESET_B__GPIO3_IO07 0x31e
> >;
> };
>
> + pinctrl_rtc: rtcgrp {
> + fsl,pins = <
> + MX93_PAD_ENET2_RD2__GPIO4_IO26 0x31e
> + >;
> + };
> +

keep order by node name.

Frank
> pinctrl_usdhc2_cd: usdhc2cdgrp {
> fsl,pins = <
> MX93_PAD_SD2_CD_B__GPIO3_IO00 0x31e
> --
> 2.34.1
>