From: "Matt Carlson" <mcarlson@broadcom.com>
To: davem@davemloft.net
Cc: netdev@vger.kernel.org, mcarlson@broadcom.com, mchan@broadcom.com
Subject: [PATCH] tg3: Fix 5717 serdes powerdown problem
Date: Mon, 2 Apr 2012 12:01:40 -0700 [thread overview]
Message-ID: <1333393300-5102-1-git-send-email-mcarlson@broadcom.com> (raw)
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>
---
drivers/net/ethernet/broadcom/tg3.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 7b71387..d2ff8ee 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -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 ||
--
1.7.3.4
next reply other threads:[~2012-04-02 19:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-02 19:01 Matt Carlson [this message]
2012-04-02 21:42 ` [PATCH] tg3: Fix 5717 serdes powerdown problem David Miller
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