From: David Bauer <mail@david-bauer.net>
Date: Sun, 23 Feb 2020 11:50:30 +0000 (+0100)
Subject: ath79: fix TP-Link TL-WA901ND v2 PHY stuck in reset
X-Git-Tag: v21.02.0-rc1~3756
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=55c153538d894f6fe71404fa3b73cb52ad946d63;p=openwrt%2Fstaging%2Fhauke.git

ath79: fix TP-Link TL-WA901ND v2 PHY stuck in reset

Some newer bootloaders for the TP-Link TL-WA901ND put the ethernet PHY
in reset before loading the kernel, thus the LAN interface is not
working in OpenWrt.

Clear the reset to restore ethernet functionality.

Signed-off-by: David Bauer <mail@david-bauer.net>
---

diff --git a/target/linux/ath79/dts/ar9132_tplink_tl-wa901nd-v2.dts b/target/linux/ath79/dts/ar9132_tplink_tl-wa901nd-v2.dts
index e55affdf20..6542ce9e4d 100644
--- a/target/linux/ath79/dts/ar9132_tplink_tl-wa901nd-v2.dts
+++ b/target/linux/ath79/dts/ar9132_tplink_tl-wa901nd-v2.dts
@@ -113,6 +113,12 @@
 	phy12: ethernet-phy@c {
 		reg = <0xc>;
 		phy-mode = "mii";
+
+		resets = <&rst 8>;
+		reset-names = "phy";
+
+		reset-assert-us = <10000>;
+		reset-deassert-us = <10000>;
 	};
 };