[PATCH v3 0/2] arm64: dts: rockchip: Add peripheral support for Khadas Edge 2L

[PATCH v3 0/2] arm64: dts: rockchip: Add peripheral support for Khadas Edge 2L

[Gray Huang]

This patch series adds support for several key peripherals to the
Khadas Edge 2L board, which is based on the Rockchip RK3576 SoC.

These patches build upon the basic board support that was previously
applied to the rockchip tree. This series enables essential
functionalities including power management, RTC, wireless connectivity,
graphics, display output, and USB support.

Summary of changes:
- Enable USB 3.0 Host and USB 2.0 (via internal hub).
- Enable Bluetooth (UART5) for the Ampak module.

Changes in v2:
- Split the former AP6275P wireless patch into separate HYM8563 RTC and
  AP6275P Wi-Fi patches.
- Reorder DTS override nodes to follow the requested placement and
  alphabetical grouping.

Changes in v3:
- This series now only contains the remaining USB and Bluetooth patches.
  Rebase on top of the latest for-next branch.
- The previous patches in the series (PMIC, RTC, Wi-Fi, GPU, HDMI) have
  already been applied.
- link to v2: https://patchwork.kernel.org/project/linux-rockchip/cover/20260429063712.2150938-1-gray.huang@wesion.com/


Gray Huang (2):
  arm64: dts: rockchip: Enable USB for Khadas Edge 2L
  arm64: dts: rockchip: Add Bluetooth support for Khadas Edge 2L

 .../dts/rockchip/rk3576-khadas-edge-2l.dts    | 82 +++++++++++++++++++
 1 file changed, 82 insertions(+)

-- 
2.34.1


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[PATCH v3 1/2] arm64: dts: rockchip: Enable USB for Khadas Edge 2L

[Gray Huang]

The Khadas Edge 2L board provides one USB 3.0 Host port and
one USB 2.0 port (connected via an internal hub). Enable the
corresponding DWC3 controllers and PHYs.

Signed-off-by: Gray Huang <gray.huang@wesion.com>
---
 .../dts/rockchip/rk3576-khadas-edge-2l.dts    | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)

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 e7fe22eb31a3..0c55ff5331ce 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
@@ -30,6 +30,29 @@ hdmi_con_in: endpoint {
 		};
 	};
 
+	vcc5v0_device: regulator-vcc5v0-device {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0_device";
+		regulator-always-on;
+		regulator-boot-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+
+	vcc5v0_host: regulator-vcc5v0-host {
+		compatible = "regulator-fixed";
+		regulator-name = "vcc5v0_host";
+		regulator-boot-on;
+		regulator-always-on;
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		enable-active-high;
+		gpio = <&gpio2 RK_PD3 GPIO_ACTIVE_HIGH>;
+		vin-supply = <&vcc5v0_device>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&usb_host_pwren>;
+	};
+
 	vcc_sys: regulator-vcc5v0-sys {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc_sys";
@@ -78,6 +101,10 @@ &combphy0_ps {
 	status = "okay";
 };
 
+&combphy1_psu {
+	status = "okay";
+};
+
 &cpu_l0 {
 	cpu-supply = <&vdd_cpu_lit_s0>;
 };
@@ -531,6 +558,12 @@ pcie0_rst: pcie0-rst {
 		};
 	};
 
+	usb {
+		usb_host_pwren: usb-host-pwren {
+			rockchip,pins = <2 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	wifi {
 		wifi_reg_on: wifi-reg-on {
 			rockchip,pins = <4 RK_PA2 RK_FUNC_GPIO &pcfg_pull_up>;
@@ -552,10 +585,24 @@ &sdhci {
 	status = "okay";
 };
 
+&u2phy1 {
+	status = "okay";
+};
+
+&u2phy1_otg {
+	phy-supply = <&vcc5v0_host>;
+	status = "okay";
+};
+
 &uart0 {
 	status = "okay";
 };
 
+&usb_drd1_dwc3 {
+	dr_mode = "host";
+	status = "okay";
+};
+
 &vop {
 	status = "okay";
 };
-- 
2.34.1


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[PATCH v3 2/2] arm64: dts: rockchip: Add Bluetooth support for Khadas Edge 2L

[Gray Huang]

Enable Bluetooth support for the Ampak AP6275P module on the
Khadas Edge 2L. This involves enabling the UART5 interface for
HCI communication and defining the required regulators and
power-sequence pins.

Signed-off-by: Gray Huang <gray.huang@wesion.com>
---
 .../dts/rockchip/rk3576-khadas-edge-2l.dts    | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)

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 0c55ff5331ce..8d65e1fe9ca0 100644
--- a/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3576-khadas-edge-2l.dts
@@ -552,6 +552,20 @@ wifi: wifi@0,0 {
 };
 
 &pinctrl {
+	bluetooth {
+		bt_reg_on: bt-reg-on {
+			rockchip,pins = <4 RK_PB2 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+
+		bt_wake_host: bt-wake-host {
+			rockchip,pins = <0 RK_PB1 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+
+		host_wake_bt: host-wake-bt {
+			rockchip,pins = <0 RK_PA5 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
 	pcie0 {
 		pcie0_rst: pcie0-rst {
 			rockchip,pins = <4 RK_PB4 RK_FUNC_GPIO &pcfg_pull_none>;
@@ -598,6 +612,27 @@ &uart0 {
 	status = "okay";
 };
 
+&uart5 {
+	pinctrl-0 = <&uart5m1_xfer &uart5m1_ctsn &uart5m1_rtsn>;
+	pinctrl-names = "default";
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		clocks = <&hym8563>;
+		clock-names = "lpo";
+		device-wakeup-gpios = <&gpio0 RK_PA5 GPIO_ACTIVE_HIGH>;
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PB1 IRQ_TYPE_LEVEL_HIGH>;
+		pinctrl-0 = <&bt_reg_on &bt_wake_host &host_wake_bt>;
+		pinctrl-names = "default";
+		shutdown-gpios = <&gpio4 RK_PB2 GPIO_ACTIVE_HIGH>;
+		vbat-supply = <&vcc_3v3_s3>;
+		vddio-supply = <&vcc_1v8_s3>;
+	};
+};
+
 &usb_drd1_dwc3 {
 	dr_mode = "host";
 	status = "okay";
-- 
2.34.1


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