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-rw-r--r--drivers/net/tg3.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index b6615f112ea..604f3085d12 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -1175,8 +1175,18 @@ static void tg3_nvram_unlock(struct tg3 *);
static void tg3_power_down_phy(struct tg3 *tp)
{
- if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)
+ if (tp->tg3_flags2 & TG3_FLG2_PHY_SERDES) {
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704) {
+ u32 sg_dig_ctrl = tr32(SG_DIG_CTRL);
+ u32 serdes_cfg = tr32(MAC_SERDES_CFG);
+
+ sg_dig_ctrl |=
+ SG_DIG_USING_HW_AUTONEG | SG_DIG_SOFT_RESET;
+ tw32(SG_DIG_CTRL, sg_dig_ctrl);
+ tw32(MAC_SERDES_CFG, serdes_cfg | (1 << 15));
+ }
return;
+ }
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
u32 val;