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ramips: net/mediatek disable eee

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This fix link down/up issue, which happens
when connecting to 100Mbit switch

Refer: https://git.openwrt.org/?p=openwrt/svn-archive/archive.git;a=blob;f=target/linux/mediatek/patches/0063-arm-mediatek-add-SDK-ethernet.patch;h=7263bb21816b36733b561b749de589d4b010d718;hb=d8804dd309b0a1701c8ebe0a26d700745df24f11#l14003

Signed-off-by: Chen Minqiang <ptpt52@gmail.com>
This commit is contained in:
Chen Minqiang 2020-03-19 16:00:23 +08:00 committed by CN_SZTL
parent 1e46eec35e
commit 6b28e5eba2
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GPG Key ID: 6850B6345C862176
1 changed files with 16 additions and 0 deletions
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16
target/linux/ramips/files/drivers/net/ethernet/mediatek/gsw_mt7621.c
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@ -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);