From: Shiji Yang <yangshiji66@qq.com>
Date: Mon, 12 Dec 2022 11:18:41 +0000 (+0000)
Subject: ramips: improve support for H3C TX180x series devices
X-Git-Tag: v23.05.0-rc1~1532
X-Git-Url: http://git.openwrt.org/?a=commitdiff_plain;h=a7d8b54f86f572409b40c7ab4ad3982a1eabfdfe;p=openwrt%2Fopenwrt.git

ramips: improve support for H3C TX180x series devices

1. Explicitly declare gpio pin groups to ensure that gpio works properly.

2. Override bootargs in device tree to avoid modifying u-boot envs during
   initial installation.

Tested on H3C TX1801 Plus

Signed-off-by: Shiji Yang <yangshiji66@qq.com>
---

diff --git a/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi b/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
index 61f2f8cc98..54d7908e40 100644
--- a/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
+++ b/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
@@ -16,6 +16,7 @@
 
 	chosen {
 		bootargs = "console=ttyS0,115200";
+		bootargs-override = "console=ttyS0,115200";
 	};
 
 	keys {
@@ -141,6 +142,13 @@
 	status = "disabled";
 };
 
+&state_default {
+	gpio {
+		groups = "jtag";
+		function = "gpio";
+	};
+};
+
 &switch0 {
 	ports {
 		port@1 {