From: Jorik Jonker <jorik@xxxxxxxxxxxxxx>
This was done to make UART1-3 on H3 consistent, and less complicated to
enable UART1-3 on the breakout header on the several H3 board (notably
Orange Pi's). This patch adds a bit of complexity for the existing Banana
Pi, which already had the RTS/CTS associated on UART1.
The RTS/CTS for UART2-3 could be defined in the same way, but since
there is no actual use case for them at the moment, they are left out.
Signed-off-by: Jorik Jonker <jorik@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts | 2 +-
arch/arm/boot/dts/sun8i-h3.dtsi | 11 +++++++++--
2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
index f3b1d5f..06fddaa 100644
--- a/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
+++ b/arch/arm/boot/dts/sun8i-h3-bananapi-m2-plus.dts
@@ -185,7 +185,7 @@
&uart1 {
pinctrl-names = "default";
- pinctrl-0 = <&uart1_pins_a>;
+ pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
status = "okay";
};
diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
index 665fa32..742bced 100644
--- a/arch/arm/boot/dts/sun8i-h3.dtsi
+++ b/arch/arm/boot/dts/sun8i-h3.dtsi
@@ -367,8 +367,15 @@
allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
};
- uart1_pins_a: uart1@0 {
- allwinner,pins = "PG6", "PG7", "PG8", "PG9";
+ uart1_pins: uart1 {
+ allwinner,pins = "PG6", "PG7";
+ allwinner,function = "uart1";
+ allwinner,drive = <SUN4I_PINCTRL_10_MA>;
+ allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+ };
+
+ uart1_rts_cts_pins: uart1_rts_cts {
+ allwinner,pins = "PG8", "PG9";
allwinner,function = "uart1";
allwinner,drive = <SUN4I_PINCTRL_10_MA>;
allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
--
2.7.4
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