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: Fix 5709 Serdes detection.

PATCH Applied Michael Chan 2 participants 2 messages Jan 8, 2007 – Jan 9, 2007

Subsystems (2)
Networking Network drivers
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Michael Chan

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#0 lore raw

PATCH 2/4 : Fix 5709 Serdes detection.

[BNX2]: Fix 5709 Serdes detection.

5709 has a new register to detect copper/fiber PHYs.

Signed-off-by Michael Chan <[email protected]>
drivers/net/bnx2.c +41 -4
index 8d682fc..e325f93 100644
@@ -5643,6 +5643,44 @@ poll_bnx2(struct net_device *dev)
 }
 #endif
 
+static void __devinit
+bnx2_get_5709_media(struct bnx2 *bp)
+{
+	u32 val = REG_RD(bp, BNX2_MISC_DUAL_MEDIA_CTRL);
+	u32 bond_id = val & BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID;
+	u32 strap;
+
+	if (bond_id == BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID_C)
+		return;
+	else if (bond_id == BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID_S) {
+		bp->phy_flags |= PHY_SERDES_FLAG;
+		return;
+	}
+
+	if (val & BNX2_MISC_DUAL_MEDIA_CTRL_STRAP_OVERRIDE)
+		strap = (val & BNX2_MISC_DUAL_MEDIA_CTRL_PHY_CTRL) >> 21;
+	else
+		strap = (val & BNX2_MISC_DUAL_MEDIA_CTRL_PHY_CTRL_STRAP) >> 8;
+
+	if (PCI_FUNC(bp->pdev->devfn) == 0) {
+		switch (strap) {
+		case 0x4:
+		case 0x5:
+		case 0x6:
+			bp->phy_flags |= PHY_SERDES_FLAG;
+			return;
+		}
+	} else {
+		switch (strap) {
+		case 0x1:
+		case 0x2:
+		case 0x4:
+			bp->phy_flags |= PHY_SERDES_FLAG;
+			return;
+		}
+	}
+}
+
 static int __devinit
 bnx2_init_board(struct pci_dev *pdev, struct net_device *dev)
 {

@@ -5863,10 +5901,9 @@ bnx2_init_board(struct pci_dev *pdev, st
 	bp->phy_addr = 1;
 
 	/* Disable WOL support if we are running on a SERDES chip. */
-	if (CHIP_NUM(bp) == CHIP_NUM_5709) {
-		if (CHIP_BOND_ID(bp) != BNX2_MISC_DUAL_MEDIA_CTRL_BOND_ID_C)
-			bp->phy_flags |= PHY_SERDES_FLAG;
-	} else if (CHIP_BOND_ID(bp) & CHIP_BOND_ID_SERDES_BIT)
+	if (CHIP_NUM(bp) == CHIP_NUM_5709)
+		bnx2_get_5709_media(bp);
+	else if (CHIP_BOND_ID(bp) & CHIP_BOND_ID_SERDES_BIT)
 		bp->phy_flags |= PHY_SERDES_FLAG;
 
 	if (bp->phy_flags & PHY_SERDES_FLAG) {