[PATCH v2 2/4] arm64: dts: amlogic: meson-s4-s905y4-khadas-vim1s: enable bluetooth

Nick Xie
2026-02-28T06:38:46Z

The Khadas VIM1S board uses the Ampak AP6256 Wi-Fi/Bluetooth module.
The Bluetooth controller is connected via UART_A and requires the
external 32k clock (LPO).

Enable the UART_A node and add the bluetooth child node to support it.

Signed-off-by: Nick Xie <nick@khadas.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
---
.../dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts | 15 +++++++++++++++
1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
index 27d0f6134ea9d..d36533f5559a8 100644
--- a/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-s4-s905y4-khadas-vim1s.dts
@@ -254,6 +254,21 @@ &spicc0 {
cs-gpios = <&gpio GPIOX_10 GPIO_ACTIVE_LOW>;
};

+&uart_a {
+ status = "okay";
+ pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
+ pinctrl-names = "default";
+ uart-has-rtscts;
+
+ bluetooth {
+ compatible = "brcm,bcm4345c5";
+ shutdown-gpios = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>;
+ max-speed = <2000000>;
+ clocks = <&sdio_32k>;
+ clock-names = "lpo";
+ };
+};
+
&uart_b {
status = "okay";