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

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Add device tree nodes to enable Bluetooth in the Ampak AP6275P module
found on Rockchip RK3576 EVB1 and connected over a UART link.

Note that this doesn't enable the out-of-band PCM connection. It's
routed to SAI2 M0 pins in case anyone wishes to add it.

Tested-by: Pavel Zhovner <pavel@flipperdevices.com>
Signed-off-by: Alexey Charkov <alchark@gmail.com>
Link: https://lore.kernel.org/r/20250813-evb1-rtcwifibt-v1-3-d13c83422971@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Alexey Charkov 2025-08-13 00:30:25 +04:00 committed by Heiko Stuebner
parent ebf8183ad0
commit 34f7620912
1 changed files with 35 additions and 0 deletions
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35
arch/arm64/boot/dts/rockchip/rk3576-evb1-v10.dts
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@ -766,6 +766,20 @@ &pcie1 {
};
&pinctrl {
bluetooth {
bt_reg_on: bt-reg-on {
rockchip,pins = <1 RK_PC7 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 = <1 RK_PD4 RK_FUNC_GPIO &pcfg_pull_up>;
};
};
hym8563 {
rtc_int: rtc-int {
rockchip,pins = <0 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
@ -855,6 +869,27 @@ &uart0 {
status = "okay";
};
&uart4 {
pinctrl-0 = <&uart4m1_xfer &uart4m1_ctsn &uart4m1_rtsn>;
pinctrl-names = "default";
uart-has-rtscts;
status = "okay";
bluetooth {
compatible = "brcm,bcm43438-bt";
clocks = <&hym8563>;
clock-names = "lpo";
device-wakeup-gpios = <&gpio1 RK_PD4 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 = <&gpio1 RK_PC7 GPIO_ACTIVE_HIGH>;
vbat-supply = <&vcc_3v3_s3>;
vddio-supply = <&vcc_1v8_s3>;
};
};
&ufshc {
status = "okay";
};