ARM: dts: sun8i: enable UART1 for iNet D978 Rev2 board

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@aosc.xyz>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

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 0f52cd9dfa411175e2768f736370bc36e3de6a1f..fb4665576dfffc8169bb0c7afcd9e1c22c146378 100644 (file)
--- 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";
+};