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tg3: Fix 5717 serdes powerdown problem

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If port 0 of a 5717 serdes device powers down, it hides the phy from
port 1.  This patch works around the problem by keeping port 0's phy
powered up.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2012-04-02 09:01:40 +00:00 committed by David S. Miller
parent 78fb72f793
commit 085f1afc56
1 changed files with 3 additions and 1 deletions
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4
drivers/net/ethernet/broadcom/tg3.c
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@ -2779,7 +2779,9 @@ static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 &&
(tp->phy_flags & TG3_PHYFLG_MII_SERDES)))
(tp->phy_flags & TG3_PHYFLG_MII_SERDES)) ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 &&
!tp->pci_fn))
return;
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||