ramips: net/mediatek disable eee

This disable eee for mt7530 ports, it causes the link down/up
issue, which happens when connecting to 100Mbit switch

Fixes: FS#1449

Signed-off-by: Chen Minqiang <ptpt52@gmail.com>

target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/gsw_mt7621.c

@@ -186,6 +186,22 @@ static void mt7621_hw_init(struct mt7620_gsw *gsw, struct device_node *np)
 	mt7530_mdio_w32(gsw, 0x7a74, 0x44);
 	mt7530_mdio_w32(gsw, 0x7a7c, 0x44);
 
+	/* Disable EEE */
+	for (i = 0; i <= 4; i++) {
+		_mt7620_mii_write(gsw, i, 13, 0x7);
+		_mt7620_mii_write(gsw, i, 14, 0x3C);
+		_mt7620_mii_write(gsw, i, 13, 0x4007);
+		_mt7620_mii_write(gsw, i, 14, 0x0);
+	}
+
+	/* Disable EEE 10Base-Te */
+	for (i = 0; i <= 4; i++) {
+		_mt7620_mii_write(gsw, i, 13, 0x1f);
+		_mt7620_mii_write(gsw, i, 14, 0x027b);
+		_mt7620_mii_write(gsw, i, 13, 0x401f);
+		_mt7620_mii_write(gsw, i, 14, 0x1177);
+	}
+
 	/* turn on all PHYs */
 	for (i = 0; i <= 4; i++) {
 		val = _mt7620_mii_read(gsw, i, 0);