This takes the Bluetooth module out of reset (the reset line is
connected to GPIOX_17) and enables uart_A which is used to configure the
module.
This is identical for all boards which inherit meson-gx-p23x-q20x:
- GXL S905D P230
- GXL S905D P231
- GXM S912 Q200
- GXM S912 Q201
To get the HCI interface up one has to install bluez-utils and run:
hciattach -s115200 /dev/ttyAML1 bcm43xx 2000000 flow -
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi
index 7a078bef04cd..7db779048091 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi
@@ -48,6 +48,7 @@
/ {
aliases {
serial0 = &uart_AO;
+ serial1 = &uart_A;
};
chosen {
@@ -94,12 +95,21 @@
sdio_pwrseq: sdio-pwrseq {
compatible = "mmc-pwrseq-simple";
- reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>;
+ reset-gpios = <&gpio GPIOX_6 GPIO_ACTIVE_LOW>,
+ <&gpio GPIOX_17 GPIO_ACTIVE_LOW>;
clocks = <&wifi32k>;
clock-names = "ext_clock";
};
};
+/* 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;
+};
+
/* This UART is brought out to the DB9 connector */
&uart_AO {
status = "okay";
--
2.11.0
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