[PATCHv6 06/10] arm: mvebu: define and use common Armada 370 UART pinctrl settings

[Arnaud Ebalard]

This patch defines common Armada 370 pinctrl settings for uart0 and
uart1 interfaces:

 uart0: MPP0-1 as default
 uart1: MPP41-42 as default

Note: this patch has the potential to break out-of-tree users w/o
specific pinctrl settings for their uart interfaces if the default
above does not match their config.

Suggested-by: Andrew Lunn <andrew at lunn.ch>
Acked-by: Andrew Lunn <andrew at lunn.ch>
Signed-off-by: Arnaud Ebalard <arno at natisbad.org>
---
 arch/arm/boot/dts/armada-370.dtsi | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm/boot/dts/armada-370.dtsi b/arch/arm/boot/dts/armada-370.dtsi
index f1227c53e92d..fbd835a3c62c 100644
--- a/arch/arm/boot/dts/armada-370.dtsi
+++ b/arch/arm/boot/dts/armada-370.dtsi
@@ -121,6 +121,21 @@
 				reg = <0x11100 0x20>;
 			};
 
+			/*
+			 * Default UART pinctrl setting without RTS/CTS, can
+			 * be overwritten on board level if a different
+			 * configuration is used.
+			 */
+			uart0: serial at 12000 {
+				pinctrl-0 = <&uart0_pins>;
+				pinctrl-names = "default";
+			};
+
+			uart1: serial at 12100 {
+				pinctrl-0 = <&uart1_pins>;
+				pinctrl-names = "default";
+			};
+
 			system-controller at 18200 {
 				compatible = "marvell,armada-370-xp-system-controller";
 				reg = <0x18200 0x100>;
@@ -281,6 +296,16 @@
 		marvell,function = "spi1";
 	};
 
+	uart0_pins: uart0-pins {
+		marvell,pins = "mpp0", "mpp1";
+		marvell,function = "uart0";
+	};
+
+	uart1_pins: uart1-pins {
+		marvell,pins = "mpp41", "mpp42";
+		marvell,function = "uart1";
+	};
+
 	sdio_pins1: sdio-pins1 {
 		marvell,pins = "mpp9",  "mpp11", "mpp12",
 				"mpp13", "mpp14", "mpp15";
-- 
2.1.1