Am 15.01.2017 um 23:32 schrieb Martin Blumenstingl:
> 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>;
Nit: <&uart_a_pins>, <&uart_a_cts_rts_pins> please, like you've done for
reset-gpios above.
Regards,
Andreas
> + pinctrl-names = "default";
> + uart-has-rtscts;
> +};
> +
> /* This UART is brought out to the DB9 connector */
> &uart_AO {
> status = "okay";
>
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