netdev - [TG3 5/8]: Power down 5704 serdes transceiver when shutting down.

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Message-ID: <1171397672.18944.29.camel@rh4>
Date:	Tue, 13 Feb 2007 12:14:32 -0800
From:	"Michael Chan" <mchan@...adcom.com>
To:	davem@...emloft.net, netdev@...r.kernel.org
Subject: [TG3 5/8]: Power down 5704 serdes transceiver when shutting
 down.

[TG3]: Power down 5704 serdes transceiver when shutting down.

Signed-off-by: Michael Chan <mchan@...adcom.com>

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index b6615f1..604f308 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;


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