Re: [PATCH] arm64: dts: rockchip: Enable Wi-Fi on the NanoPi M5

[Shawn Lin <shawn.lin@rock-chips.com>]

在 2026/10/26 星期一 4:52, Leonard Lausen 写道:
> The NanoPi M5 has an M.2 E-key slot for SDIO Wi-Fi modules such as the
> RTL8822CS-based AC200. The SDIO controller is disabled and the module's
> power sequence is not described, preventing the card from enumerating.
> 
> Enable the controller in four-bit SDR104 mode and connect its 3.3 V card
> and 1.8 V I/O supplies. Describe the active-low reset on GPIO1_C2, the
> 200 ms power-on delay used by the vendor device tree, and the external
> 32.768 kHz clock from the HYM8563 RTC. Keep the card powered during
> suspend as required by the rtw88 SDIO driver.
> 
> Signed-off-by: Leonard Lausen <leonard@lausen.nl>
> ---
>   .../boot/dts/rockchip/rk3576-nanopi-m5.dts    | 34 +++++++++++++++++++
>   1 file changed, 34 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts b/arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts
> index 3a305408fa16c..bfa18de1ae1af 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3576-nanopi-m5.dts
> @@ -23,6 +23,7 @@ aliases {
>   		ethernet0 = &gmac0;
>   		ethernet1 = &gmac1;
>   		mmc0 = &sdmmc;
> +		mmc1 = &sdio;
>   	};
>   
>   	chosen {
> @@ -212,6 +213,16 @@ vcc_3v3_s0: regulator-vcc-3v3-s0 {
>   		vin-supply = <&vcc_3v3_s3>;
>   	};
>   
> +	sdio_pwrseq: sdio-pwrseq {
> +		compatible = "mmc-pwrseq-simple";
> +		clocks = <&hym8563>;
> +		clock-names = "ext_clock";
> +		pinctrl-0 = <&wifi_reg_on_h>;
> +		pinctrl-names = "default";
> +		post-power-on-delay-ms = <200>;
> +		reset-gpios = <&gpio1 RK_PC2 GPIO_ACTIVE_LOW>;
> +	};
> +
>   	sound {
>   		compatible = "simple-audio-card";
>   		pinctrl-names = "default";
> @@ -855,6 +866,12 @@ pcie0_perstn: pcie0-perstn {
>   		};
>   	};
>   
> +	sdio-pwrseq {
> +		wifi_reg_on_h: wifi-reg-on-h {
> +			rockchip,pins = <1 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
> +		};
> +	};
> +
>   	sdmmc {
>   		sdmmc0_pwren_h: sdmmc0-pwren-h {
>   			rockchip,pins = <0 RK_PB6 RK_FUNC_GPIO &pcfg_pull_up>;
> @@ -890,6 +907,23 @@ &saradc {
>   	status = "okay";
>   };
>   
> +&sdio {
> +	bus-width = <4>;
> +	cap-sd-highspeed;
> +	cap-sdio-irq;
> +	disable-wp;

disable-wp is for sd cards, please drop it.

> +	keep-power-in-suspend;
> +	mmc-pwrseq = <&sdio_pwrseq>;
> +	no-mmc;
> +	no-sd;
> +	non-removable;
> +	sd-uhs-sdr104;
> +	vmmc-supply = <&vcc_3v3_s3>;
> +	vqmmc-supply = <&vcc_1v8_s3>;
> +
> +	status = "okay";
> +};
> +
>   &sdmmc {
>   	bus-width = <4>;
>   	cap-sd-highspeed;