arm64: dts: rockchip: add Quartz64-A sdmmc1 node

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@gmail.com>
Link: https://lore.kernel.org/r/20220128003809.3291407-4-pgwipeout@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
index 4310dcb5d253547f8f435ef6deb43a1091eb9f9e..94a164d6bce948bd4535ce6442013d1a43a2b55d 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
@@ -73,6 +73,17 @@
                };
        };
 
+       sdio_pwrseq: sdio-pwrseq {
+               compatible = "mmc-pwrseq-simple";
+               clocks = <&rk817 1>;
+               clock-names = "ext_clock";
+               pinctrl-names = "default";
+               pinctrl-0 = <&wifi_enable_h>;
+               post-power-on-delay-ms = <100>;
+               power-off-delay-us = <5000000>;
+               reset-gpios = <&gpio2 RK_PC2 GPIO_ACTIVE_LOW>;
+       };
+
        spdif_dit: spdif-dit {
                compatible = "linux,spdif-dit";
                #sound-dai-cells = <0>;
@@ -163,6 +174,17 @@
                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 {
@@ -499,6 +521,12 @@
                };
        };
 
+       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>;
@@ -540,6 +568,21 @@
        status = "okay";
 };
 
+&sdmmc1 {
+       bus-width = <4>;
+       cap-sd-highspeed;
+       cap-sdio-irq;
+       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";
 };