lkml.org 
[lkml]   [2017]   [Dec]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] arm: dts: mt7623: enable all four available UARTs on bananapi-r2
Date
From: Sean Wang <sean.wang@mediatek.com>

On bpi-r2 board, totally there're four uarts which we usually called
uart[0-3] helpful to extend slow I/O devices. Among those ones, uart2 has
dedicated pin slot which is used to conolse log. uart[0-1] appear at the
40-pins connector and uart3 has no pinout, but just has test points (TP47
for TX and TP48 for RX, respectively) nearby uart2. Also, some missing
pinctrl is being complemented for those devices.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts | 26 ++++++++++++++++++++++++--
1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
index 7bf5aa2..64bf5db 100644
--- a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
+++ b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
@@ -409,6 +409,20 @@
<MT7623_PIN_82_UTXD1_FUNC_UTXD1>;
};
};
+
+ uart2_pins_a: uart@2 {
+ pins_dat {
+ pinmux = <MT7623_PIN_14_GPIO14_FUNC_URXD2>,
+ <MT7623_PIN_15_GPIO15_FUNC_UTXD2>;
+ };
+ };
+
+ uart3_pins_a: uart@3 {
+ pins_dat {
+ pinmux = <MT7623_PIN_242_URTS2_FUNC_URTS2>,
+ <MT7623_PIN_243_UCTS2_FUNC_UTXD3>;
+ };
+ };
};

&pwm {
@@ -454,16 +468,24 @@
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_pins_a>;
- status = "disabled";
+ status = "okay";
};

&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&uart1_pins_a>;
- status = "disabled";
+ status = "okay";
};

&uart2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart2_pins_a>;
+ status = "okay";
+};
+
+&uart3 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart3_pins_a>;
status = "okay";
};

--
2.7.4
\
 
 \ /
  Last update: 2017-12-22 07:06    [W:0.076 / U:0.316 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site