[PATCH v2 3/7] arm64: dts: rockchip: Add AP6275P wireless support for Khadas Edge 2L

Gray Huang
2026-04-29T06:38:11Z

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>
---
.../dts/rockchip/rk3576-khadas-edge-2l.dts | 64 ++++++++++++++++++-
1 file changed, 62 insertions(+), 2 deletions(-)

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 c85b219fe409..9cabbbbab96f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
@@ -46,16 +46,34 @@ vcc_2v0_pldo_s3: regulator-vcc-2v0-pldo-s3 {
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>;
+ };
};

-&cpu_l0 {
- cpu-supply = <&vdd_cpu_lit_s0>;
+&combphy0_ps {
+ status = "okay";
};

&cpu_b0 {
cpu-supply = <&vdd_cpu_big_s0>;
};

+&cpu_l0 {
+ cpu-supply = <&vdd_cpu_lit_s0>;
+};
+
&i2c1 {
status = "okay";

@@ -441,6 +459,48 @@ hym8563: hym8563@51 {
};
};

+&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;
--
2.34.1