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

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

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 84ac8ffdaa32..222cde0ea44c 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