On 1/27/22 02:00, Peter Geis wrote:
> The sdmmc1 node on Quartz64-A supports the optional wifi module from
> Pine64.
> Add the sdmmc1 node and requisite sdio_pwrseq to enable wifi support on
> the Quartz64-A.
>
> Signed-off-by: Peter Geis <pgwipeout@xxxxxxxxx>
> ---
> .../boot/dts/rockchip/rk3566-quartz64-a.dts | 45 +++++++++++++++++++
> 1 file changed, 45 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> index 33c2c18caaa9..1d73ac6557c5 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
> @@ -91,6 +91,18 @@ simple-audio-card,codec {
> };
> };
>
> + sdio_pwrseq: sdio-pwrseq {
> + status = "okay";
When a node is not previously disabled, then there's no need for "okay".
> + compatible = "mmc-pwrseq-simple";
> + clocks = <&rk817 1>;
> + clock-names = "ext_clock";
> + pinctrl-names = "default";
> + pinctrl-0 = <&wifi_enable_h>;
> + reset-gpios = <&gpio2 RK_PC2 GPIO_ACTIVE_LOW>;
> + post-power-on-delay-ms = <100>;
> + power-off-delay-us = <5000000>;
> + };
> +
> vcc12v_dcin: vcc12v_dcin {
> compatible = "regulator-fixed";
> regulator-name = "vcc12v_dcin";
> @@ -147,6 +159,17 @@ vcc_sys: vcc_sys {
> regulator-max-microvolt = <4400000>;
> vin-supply = <&vbus>;
> };
> +
> + /* sourced from vcc_sys, sdio module operates internally at 3.3v */
> + vcc_wl: vcc_wl {
> + compatible = "regulator-fixed";
> + regulator-name = "vcc_wl";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + vin-supply = <&vcc_sys>;
> + };
> };
>
> &cpu0 {
> @@ -475,6 +498,12 @@ pmic_int_l: pmic-int-l {
> };
> };
>
> + sdio-pwrseq {
> + wifi_enable_h: wifi-enable-h {
> + rockchip,pins = <2 RK_PC2 RK_FUNC_GPIO &pcfg_pull_none>;
> + };
> + };
> +
> vcc_sd {
> vcc_sd_h: vcc-sd-h {
> rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_none>;
> @@ -516,6 +545,22 @@ &sdmmc0 {
> status = "okay";
> };
>
> +&sdmmc1 {
> + bus-width = <4>;
> + cap-sd-highspeed;
> + cap-sdio-irq;
> + disable-wp;
>From mmc-controller.yaml:
disable-wp:
$ref: /schemas/types.yaml#/definitions/flag
description:
When set, no physical write-protect line is present. This
property should only be specified when the controller has a
dedicated write-protect detection logic. If a GPIO is always used
for the write-protect detection logic, it is sufficient to not
specify the wp-gpios property in the absence of a write-protect
line. Not used in combination with eMMC or SDIO.
> + keep-power-in-suspend;
> + mmc-pwrseq = <&sdio_pwrseq>;
> + non-removable;
> + pinctrl-names = "default";
> + pinctrl-0 = <&sdmmc1_bus4 &sdmmc1_cmd &sdmmc1_clk>;
> + sd-uhs-sdr104;
> + vmmc-supply = <&vcc_wl>;
> + vqmmc-supply = <&vcc_1v8>;
> + status = "okay";
> +};
> +
> &spdif {
> status = "okay";
> };
