Re: [PATCH] ARM: dts: sun8i: enable UART1 for iNet D978 Rev2 board
From: Icenowy Zheng <hidden>
Date: 2016-09-15 02:22:18
Also in:
linux-arm-kernel
15.09.2016, 10:15, "Icenowy Zheng" [off-list ref]:
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 <redacted>
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.)
quoted hunk ↗ jump to hunk
--- 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@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@0 { + allwinner,pins = "PG8", "PG9"; + allwinner,function = "uart1"; + allwinner,drive = <SUN4I_PINCTRL_10_MA>; + allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; + }; + mmc0_pins_a: mmc0@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
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