[openwrt/openwrt] ramips: mt7620: power up ephy port 4

[LEDE Commits]

mkresin pushed a commit to openwrt/openwrt.git, branch master:
https://git.lede-project.org/39b5218434d38715a85b7bd6dd8d279c3e1e905d

commit 39b5218434d38715a85b7bd6dd8d279c3e1e905d
Author: Pawel Dembicki <paweldembicki at gmail.com>
AuthorDate: Mon Feb 19 22:15:56 2018 +0100

    ramips: mt7620: power up ephy port 4
    
    In some boards port 4 of mt7620 switch is powered down in bootloader
    configuration as lan/wan package leak mitigation.
    
    Reset ephy port 4 to default settings to power up the port.
    
    Signed-off-by: Pawel Dembicki <paweldembicki at gmail.com>
    [clarify issue in commit message]
    Signed-off-by: Mathias Kresin <dev at kresin.me>
---
 target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/gsw_mt7620.c | 1 +
 target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7620.c  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/gsw_mt7620.c b/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/gsw_mt7620.c
index b675ad0..4093f09 100644
--- a/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/gsw_mt7620.c
+++ b/target/linux/ramips/files-4.14/drivers/net/ethernet/mtk/gsw_mt7620.c
@@ -166,6 +166,7 @@ static void mt7620_hw_init(struct mt7620_gsw *gsw, struct device_node *np)
 		_mt7620_mii_write(gsw, 4, 30, 0xa000);
 		_mt7620_mii_write(gsw, 4, 4, 0x05e1);
 		_mt7620_mii_write(gsw, 4, 16, 0x1313);
+		_mt7620_mii_write(gsw, 4, 0, 0x3100);
 		pr_info("gsw: setting port4 to ephy mode\n");
 	}
 }
diff --git a/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7620.c b/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7620.c
index b675ad0..4093f09 100644
--- a/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7620.c
+++ b/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7620.c
@@ -166,6 +166,7 @@ static void mt7620_hw_init(struct mt7620_gsw *gsw, struct device_node *np)
 		_mt7620_mii_write(gsw, 4, 30, 0xa000);
 		_mt7620_mii_write(gsw, 4, 4, 0x05e1);
 		_mt7620_mii_write(gsw, 4, 16, 0x1313);
+		_mt7620_mii_write(gsw, 4, 0, 0x3100);
 		pr_info("gsw: setting port4 to ephy mode\n");
 	}
 }