[PATCH] ARM: dts: sun8i: enable UART1 for iNet D978 Rev2 board

[Icenowy Zheng]

15.09.2016, 10:15, "Icenowy Zheng" <icenowy at aosc.xyz>:
> UART1 is connected to the bluetooth part of RTL8723BS WiFi/BT combo card
> on iNet D978 Rev2 board.
>
> Enable the UART1 to make it possible to use the modified hciattach by
> Realtek to drive the BT part of RTL8723BS.
>
> On the board no r_uart pins are found now (the onboard RX/TX pins are
> wired to PF2/PF4, which is muxed with mmc0), so also disabled it.
>
> Signed-off-by: Icenowy Zheng <icenowy at aosc.xyz>

Oh I forgot to add a patch version number...
It's PATCH v3.

(But it seems that I should send a v4 to split the dtsi change and dts change.)

> ---
>  arch/arm/boot/dts/sun8i-a23-a33.dtsi | 14 ++++++++++++++
>  arch/arm/boot/dts/sun8i-a33-inet-d978-rev2.dts | 20 ++++++++++++++++++++
>  2 files changed, 34 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sun8i-a23-a33.dtsi b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
> index 7e05e09..c340885 100644
> --- a/arch/arm/boot/dts/sun8i-a23-a33.dtsi
> +++ b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
> @@ -361,6 +361,20 @@
>                                  allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
>                          };
>
> + uart1_pins_a: uart1 at 0 {
> + allwinner,pins = "PG6", "PG7";
> + allwinner,function = "uart1";
> + allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
> + };
> +
> + uart1_pins_cts_rts_a: uart1-cts-rts at 0 {
> + allwinner,pins = "PG8", "PG9";
> + allwinner,function = "uart1";
> + allwinner,drive = <SUN4I_PINCTRL_10_MA>;
> + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
> + };
> +
>                          mmc0_pins_a: mmc0 at 0 {
>                                  allwinner,pins = "PF0", "PF1", "PF2",
>                                                   "PF3", "PF4", "PF5";
> diff --git a/arch/arm/boot/dts/sun8i-a33-inet-d978-rev2.dts b/arch/arm/boot/dts/sun8i-a33-inet-d978-rev2.dts
> index 0f52cd9..fb46655 100644
> --- a/arch/arm/boot/dts/sun8i-a33-inet-d978-rev2.dts
> +++ b/arch/arm/boot/dts/sun8i-a33-inet-d978-rev2.dts
> @@ -49,6 +49,15 @@
>          model = "INet-D978 Rev 02";
>          compatible = "primux,inet-d978-rev2", "allwinner,sun8i-a33";
>
> + aliases {
> + serial0 = &uart1;
> + };
> +
> + chosen {
> + /* Delete debug UART as serial0 is the UART for bluetooth */
> + /delete-property/stdout-path;
> + };
> +
>          leds {
>                  compatible = "gpio-leds";
>                  pinctrl-names = "default";
> @@ -86,3 +95,14 @@
>                  allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
>          };
>  };
> +
> +&r_uart {
> + status = "disabled";
> +};
> +
> +&uart1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&uart1_pins_a>,
> + <&uart1_pins_cts_rts_a>;
> + status = "okay";
> +};
> --
> 2.9.3