* [PATCH] ARM: dts: sun8i: enable UART1 for iNet D978 Rev2 board
@ 2016-09-15 2:15 Icenowy Zheng
2016-09-15 2:22 ` Icenowy Zheng
0 siblings, 1 reply; 3+ messages in thread
From: Icenowy Zheng @ 2016-09-15 2:15 UTC (permalink / raw)
To: Rob Herring, Russell King, Maxime Ripard, Chen-Yu Tsai
Cc: Mark Rutland, devicetree, linux-kernel, linux-arm-kernel,
Icenowy Zheng
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>
---
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
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] ARM: dts: sun8i: enable UART1 for iNet D978 Rev2 board
2016-09-15 2:15 [PATCH] ARM: dts: sun8i: enable UART1 for iNet D978 Rev2 board Icenowy Zheng
@ 2016-09-15 2:22 ` Icenowy Zheng
[not found] ` <1262161473906138-MWZxdpSzzcxxpj1cXAZ9Bg@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Icenowy Zheng @ 2016-09-15 2:22 UTC (permalink / raw)
To: Rob Herring, Russell King, Maxime Ripard, Chen-Yu Tsai
Cc: Mark Rutland, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
15.09.2016, 10:15, "Icenowy Zheng" <icenowy@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@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@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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2016-09-15 2:15 [PATCH] ARM: dts: sun8i: enable UART1 for iNet D978 Rev2 board Icenowy Zheng
2016-09-15 2:22 ` Icenowy Zheng
[not found] ` <1262161473906138-MWZxdpSzzcxxpj1cXAZ9Bg@public.gmane.org>
2016-09-15 8:35 ` Maxime Ripard
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