From d1ec96af77df611d1728f3bb70289f83a02df1ea Mon Sep 17 00:00:00 2001 From: Matt Carlson Date: Tue, 12 Jan 2010 10:11:38 +0000 Subject: tg3: Add reliable serdes detection for 5717 A0 The serdes status bit does not work as intended for the 5717 A0. This patch implements an alternative detection scheme that will only be valid for A0 revisions. Signed-off-by: Matt Carlson Reviewed-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/tg3.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers/net/tg3.c') diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 4e8b87d1ffa9..0a632f96d16b 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -1037,7 +1037,11 @@ static void tg3_mdio_start(struct tg3 *tp) else tp->phy_addr = 1; - is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES; + if (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0) + is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES; + else + is_serdes = tr32(TG3_CPMU_PHY_STRAP) & + TG3_CPMU_PHY_STRAP_IS_SERDES; if (is_serdes) tp->phy_addr += 7; } else @@ -12123,7 +12127,8 @@ static void __devinit tg3_get_eeprom_hw_cfg(struct tg3 *tp) tp->phy_id = eeprom_phy_id; if (eeprom_phy_serdes) { - if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS) + if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) || + GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717) tp->tg3_flags2 |= TG3_FLG2_MII_SERDES; else tp->tg3_flags2 |= TG3_FLG2_PHY_SERDES; -- cgit v1.2.3-59-g8ed1b