This takes the Bluetooth module out of reset (the reset line is
connected to GPIOX_20) and enables uart_A which is used to configure the
module. This is common for all Vega S95 boards.
The device can then be initialized by running the hciattach tool:
hciattach -s115200 /dev/ttyAML1 bcm43xx 2000000 flow -
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
index ab497126c9a3..9e0a13b1ac93 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
@@ -47,6 +47,7 @@
aliases {
serial0 = &uart_AO;
+ serial1 = &uart_A;
};
chosen {
@@ -100,6 +101,14 @@
};
};
+/* This is connected to the Bluetooth module of the wifi/BT combo chip: */
+&uart_A {
+ status = "okay";
+ pinctrl-0 = <&uart_a_pins &uart_a_cts_rts_pins>;
+ pinctrl-names = "default";
+ uart-has-rtscts;
+};
+
&uart_AO {
status = "okay";
pinctrl-0 = <&uart_ao_a_pins>;
--
2.11.0
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