Commit ebf8183a authored by Alexey Charkov's avatar Alexey Charkov Committed by Heiko Stuebner
Browse files

arm64: dts: rockchip: Add WiFi on rk3576-evb1-v10 



Add device tree nodes to enable the onboard Ampak AP6275P WiFi chip
connected over a PCIe link on Rockchip RK3576 EVB1.

It takes an external 32 kHz clock from the RTC chip and requires the
WIFI_REG_ON signal to be enabled before the bus is enumerated to
initialize properly.

Tested-by: default avatarPavel Zhovner <pavel@flipperdevices.com>
Signed-off-by: default avatarAlexey Charkov <alchark@gmail.com>
Link: https://lore.kernel.org/r/20250813-evb1-rtcwifibt-v1-2-d13c83422971@gmail.com


Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
parent 0adaae77

arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts

+58 −0
Original line number Diff line number Diff line
@@ -232,6 +232,20 @@ vcc_ufs_s0: regulator-vcc-ufs-s0 { 
		regulator-max-microvolt = <3300000>;

		vin-supply = <&vcc_sys>;

	};



	vcc_wifi_reg_on: regulator-wifi-reg-on {

		compatible = "regulator-fixed";

		enable-active-high;

		gpios = <&gpio1 RK_PC6 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 {
@@ -242,6 +256,10 @@ &cpu_b0 { 
	cpu-supply = <&vdd_cpu_big_s0>;

};



&combphy0_ps {

	status = "okay";

};



&combphy1_psu {

	status = "okay";

};
@@ -712,6 +730,30 @@ rgmii_phy1: phy@1 { 
	};

};



&pcie0 {

	pinctrl-names = "default";

	pinctrl-0 = <&pcie0_rst>;

	reset-gpios = <&gpio2 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";

		};

	};

};



&pcie1 {

	reset-gpios = <&gpio4 RK_PC4 GPIO_ACTIVE_HIGH>;

	vpcie3v3-supply = <&vcc3v3_pcie1>;
@@ -730,6 +772,12 @@ rtc_int: rtc-int { 
		};

	};



	pcie0 {

		pcie0_rst: pcie0-rst {

			rockchip,pins = <2 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;

		};

	};



	usb {

		usb_host_pwren: usb-host-pwren {

			rockchip,pins = <0 RK_PC7 RK_FUNC_GPIO &pcfg_pull_none>;
@@ -743,6 +791,16 @@ usbc0_int: usbc0-int { 
			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;

		};

	};



	wifi {

		wifi_reg_on: wifi-reg-on {

			rockchip,pins = <1 RK_PC6 RK_FUNC_GPIO &pcfg_pull_up>;

		};



		wifi_wake_host: wifi-wake-host {

			rockchip,pins = <0 RK_PB0 RK_FUNC_GPIO &pcfg_pull_down>;

		};

	};

};



&sdhci {