[source] ramips: RT5350F-OLINUXINO: enable ttyS1

[LEDE Commits]

blogic pushed a commit to source.git, branch master:
https://git.lede-project.org/6a5b62f50354833f0f4ad8ac18f9813902b6d8d3

commit 6a5b62f50354833f0f4ad8ac18f9813902b6d8d3
Author: Zoltan Gyarmati <mr.zoltan.gyarmati at gmail.com>
AuthorDate: Tue Sep 19 23:59:56 2017 +0200

    ramips: RT5350F-OLINUXINO: enable ttyS1
    
    The RT5350F's second UART pins are available on the base module and on
    the EVB as well, so enable it in the device tree.
     In order to keep the origian serial port numbering (ttyS0 is the serial
    console), aliases added for the UART devices.
    
    Signed-off-by: Zoltan Gyarmati <mr.zoltan.gyarmati at gmail.com>
---
 target/linux/ramips/dts/RT5350F-OLINUXINO.dtsi | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/target/linux/ramips/dts/RT5350F-OLINUXINO.dtsi b/target/linux/ramips/dts/RT5350F-OLINUXINO.dtsi
index 955a13c..629dab8 100644
--- a/target/linux/ramips/dts/RT5350F-OLINUXINO.dtsi
+++ b/target/linux/ramips/dts/RT5350F-OLINUXINO.dtsi
@@ -2,8 +2,14 @@
 
 / {
 	compatible = "olimex,rt5350f-olinuxino", "ralink,rt5350-soc";
+
+    aliases {
+        serial0 = &uartlite;
+        serial1 = &uart;
+    };
 };
 
+
 &spi0 {
 	status = "okay";
 
@@ -46,9 +52,13 @@
 &pinctrl {
 	state_default: pinctrl0 {
 		gpio {
-			ralink,group = "jtag", "rgmii", "mdio", "uartf";
+			ralink,group = "jtag", "rgmii", "mdio";
 			ralink,function = "gpio";
 		};
+		uartf_gpio {
+			ralink,group = "uartf";
+			ralink,function = "gpio uartf";
+		};
 	};
 };
 
@@ -77,3 +87,8 @@
 &i2c {
 	status = "okay";
 };
+
+&uart {
+	status = "okay";
+};
+