Hi,
On Sun, Sep 24, 2023 at 08:37:45PM +0000, Tamás Szűcs wrote:
> Enable SDIO on Radxa ROCK 5 Model B M.2 Key E. Add sdio node and alias as mmc2.
> Add regulator for the 3.3 V rail bringing it up during boot. Make sure EKEY_EN
> is muxed as GPIO.
>
> Signed-off-by: Tamás Szűcs <tszucs@xxxxxxxxxxxxx>
> ---
Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
-- Sebastian
> .../boot/dts/rockchip/rk3588-rock-5b.dts | 43 +++++++++++++++++++
> 1 file changed, 43 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
> index 8ab60968f275..d1c3f9e10b3d 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
> @@ -12,6 +12,7 @@ / {
> aliases {
> mmc0 = &sdhci;
> mmc1 = &sdmmc;
> + mmc2 = &sdio;
> serial2 = &uart2;
> };
>
> @@ -76,6 +77,21 @@ vcc_1v1_nldo_s3: vcc-1v1-nldo-s3-regulator {
> regulator-max-microvolt = <1100000>;
> vin-supply = <&vcc5v0_sys>;
> };
> +
> + vcc3v3_wf: vcc3v3-wf-regulator {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc3v3_wf";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + enable-active-high;
> + gpios = <&gpio1 RK_PD2 GPIO_ACTIVE_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&vcc3v3_wf_en>;
> + startup-delay-us = <50000>;
> + vin-supply = <&vcc5v0_sys>;
> + };
> };
>
> &cpu_b0 {
> @@ -222,6 +238,12 @@ vcc5v0_host_en: vcc5v0-host-en {
> rockchip,pins = <4 RK_PB0 RK_FUNC_GPIO &pcfg_pull_none>;
> };
> };
> +
> + m2e {
> + vcc3v3_wf_en: vcc3v3-wf-en {
> + rockchip,pins = <1 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> };
>
> &pwm1 {
> @@ -258,6 +280,27 @@ &sdmmc {
> status = "okay";
> };
>
> +&sdio {
> + max-frequency = <200000000>;
> + no-sd;
> + no-mmc;
> + non-removable;
> + bus-width = <4>;
> + cap-sdio-irq;
> + disable-wp;
> + keep-power-in-suspend;
> + wakeup-source;
> + sd-uhs-sdr12;
> + sd-uhs-sdr25;
> + sd-uhs-sdr50;
> + sd-uhs-sdr104;
> + vmmc-supply = <&vcc3v3_wf>;
> + vqmmc-supply = <&vcc_1v8_s3>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&sdiom0_pins>;
> + status = "okay";
> +};
> +
> &spi2 {
> status = "okay";
> assigned-clocks = <&cru CLK_SPI2>;
> --
> 2.40.1
>
>
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