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[TG3]: Fix Phy loopback. 

Phy loopback on most 10/100 devices need to be run in 1Gbps mode in
GMII mode.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2006-12-07 00:19:40 -08:00 committed by David S. Miller
parent 456c38f968
commit 5d64ad34f4
1 changed files with 10 additions and 13 deletions
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23
drivers/net/tg3.c
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@ -8781,17 +8781,20 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
tg3_writephy(tp, 0x10, phy & ~0x4000);
tg3_writephy(tp, MII_TG3_EPHY_TEST, phytest);
}
}
val = BMCR_LOOPBACK | BMCR_FULLDPLX;
if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
val |= BMCR_SPEED100;
else
val |= BMCR_SPEED1000;
val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED100;
} else
val = BMCR_LOOPBACK | BMCR_FULLDPLX | BMCR_SPEED1000;
tg3_writephy(tp, MII_BMCR, val);
udelay(40);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)
mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) |
MAC_MODE_LINK_POLARITY;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
tg3_writephy(tp, MII_TG3_EPHY_PTEST, 0x1800);
mac_mode |= MAC_MODE_PORT_MODE_MII;
} else
mac_mode |= MAC_MODE_PORT_MODE_GMII;
/* reset to prevent losing 1st rx packet intermittently */
if (tp->tg3_flags2 & TG3_FLG2_MII_SERDES) {
@ -8799,12 +8802,6 @@ static int tg3_run_loopback(struct tg3 *tp, int loopback_mode)
udelay(10);
tw32_f(MAC_RX_MODE, tp->rx_mode);
}
mac_mode = (tp->mac_mode & ~MAC_MODE_PORT_MODE_MASK) |
MAC_MODE_LINK_POLARITY;
if (tp->tg3_flags & TG3_FLAG_10_100_ONLY)
mac_mode |= MAC_MODE_PORT_MODE_MII;
else
mac_mode |= MAC_MODE_PORT_MODE_GMII;
if ((tp->phy_id & PHY_ID_MASK) == PHY_ID_BCM5401) {
mac_mode &= ~MAC_MODE_LINK_POLARITY;
tg3_writephy(tp, MII_TG3_EXT_CTRL,