arm64: dts: rockchip: Add AP6275P wireless support for Khadas Edge 2L

The Khadas Edge 2L uses an Ampak AP6275P (BCM43752) PCIe
Wi-Fi 6 module.

Enable combphy0 and pcie0, add the Wi-Fi regulator and reset
pinctrl, and describe the PCIe Wi-Fi function so it can consume
the 32.768kHz LPO clock provided by the HYM8563 RTC.

Signed-off-by: Gray Huang <gray.huang@wesion.com>
Link: https://patch.msgid.link/20260429063712.2150938-4-gray.huang@wesion.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts b/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
index cf846b24a24a81fe128c96e8b28fadd9bf921ced..e7fe22eb31a3cbac7a7cb324f839c3061d8d3c1e 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
@@ -58,6 +58,24 @@
                regulator-max-microvolt = <2000000>;
                vin-supply = <&vcc_sys>;
        };
+
+       vcc_wifi_reg_on: regulator-wifi-reg-on {
+               compatible = "regulator-fixed";
+               enable-active-high;
+               gpios = <&gpio4 RK_PA2 GPIO_ACTIVE_HIGH>;
+               pinctrl-0 = <&wifi_reg_on>;
+               pinctrl-names = "default";
+               regulator-name = "wifi_reg_on";
+               regulator-always-on;
+               regulator-boot-on;
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <1800000>;
+               vin-supply = <&vcc_1v8_s3>;
+       };
+};
+
+&combphy0_ps {
+       status = "okay";
 };
 
 &cpu_l0 {
@@ -482,6 +500,48 @@
        };
 };
 
+&pcie0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pcie0_rst>;
+       reset-gpios = <&gpio4 RK_PB4 GPIO_ACTIVE_HIGH>;
+       vpcie3v3-supply = <&vcc_3v3_s3>;
+       status = "okay";
+
+       pcie@0,0 {
+               reg = <0x0 0 0 0 0>;
+               bus-range = <0x0 0xf>;
+               device_type = "pci";
+               ranges;
+               #address-cells = <3>;
+               #size-cells = <2>;
+
+               wifi: wifi@0,0 {
+                       compatible = "pci14e4,449d";
+                       reg = <0x10000 0 0 0 0>;
+                       clocks = <&hym8563>;
+                       clock-names = "lpo";
+               };
+       };
+};
+
+&pinctrl {
+       pcie0 {
+               pcie0_rst: pcie0-rst {
+                       rockchip,pins = <4 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;
+               };
+       };
+
+       wifi {
+               wifi_reg_on: wifi-reg-on {
+                       rockchip,pins = <4 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>;
+               };
+
+               wifi_wake_host: wifi-wake-host {
+                       rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_down>;
+               };
+       };
+};
+
 &sdhci {
        bus-width = <8>;
        no-sdio;