tg3: Revert PCIe tx glitch fix

This patch reverts commit 52cdf8526f,
entitled "tg3: Prevent a PCIe tx glitch".  The problem does not have
any visible side-effects and happens too early for the driver to do
anything about it.  The proper place for this code is within the
device's bootcode.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tg3.c

@@ -7072,30 +7072,6 @@ static int tg3_chip_reset(struct tg3 *tp)
 
 	tg3_mdio_start(tp);
 
-	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57780) {
-		u8 phy_addr;
-
-		phy_addr = tp->phy_addr;
-		tp->phy_addr = TG3_PHY_PCIE_ADDR;
-
-		tg3_writephy(tp, TG3_PCIEPHY_BLOCK_ADDR,
-			     TG3_PCIEPHY_TXB_BLK << TG3_PCIEPHY_BLOCK_SHIFT);
-		val = TG3_PCIEPHY_TX0CTRL1_TXOCM | TG3_PCIEPHY_TX0CTRL1_RDCTL |
-		      TG3_PCIEPHY_TX0CTRL1_TXCMV | TG3_PCIEPHY_TX0CTRL1_TKSEL |
-		      TG3_PCIEPHY_TX0CTRL1_NB_EN;
-		tg3_writephy(tp, TG3_PCIEPHY_TX0CTRL1, val);
-		udelay(10);
-
-		tg3_writephy(tp, TG3_PCIEPHY_BLOCK_ADDR,
-			     TG3_PCIEPHY_XGXS_BLK1 << TG3_PCIEPHY_BLOCK_SHIFT);
-		val = TG3_PCIEPHY_PWRMGMT4_LOWPWR_EN |
-		      TG3_PCIEPHY_PWRMGMT4_L1PLLPD_EN;
-		tg3_writephy(tp, TG3_PCIEPHY_PWRMGMT4, val);
-		udelay(10);
-
-		tp->phy_addr = phy_addr;
-	}
-
 	if ((tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS) &&
 	    tp->pci_chip_rev_id != CHIPREV_ID_5750_A0 &&
 	    GET_ASIC_REV(tp->pci_chip_rev_id) != ASIC_REV_5785 &&

drivers/net/tg3.h

@@ -2032,31 +2032,9 @@
 
 
 /* Currently this is fixed. */
-#define TG3_PHY_PCIE_ADDR		0x00
 #define TG3_PHY_MII_ADDR		0x01
 
 
-/*** Tigon3 specific PHY PCIE registers. ***/
-
-#define TG3_PCIEPHY_BLOCK_ADDR		0x1f
-#define  TG3_PCIEPHY_XGXS_BLK1		0x0801
-#define  TG3_PCIEPHY_TXB_BLK		0x0861
-#define  TG3_PCIEPHY_BLOCK_SHIFT	4
-
-/* TG3_PCIEPHY_TXB_BLK */
-#define TG3_PCIEPHY_TX0CTRL1		0x15
-#define  TG3_PCIEPHY_TX0CTRL1_TXOCM	0x0003
-#define  TG3_PCIEPHY_TX0CTRL1_RDCTL	0x0008
-#define  TG3_PCIEPHY_TX0CTRL1_TXCMV	0x0030
-#define  TG3_PCIEPHY_TX0CTRL1_TKSEL	0x0040
-#define  TG3_PCIEPHY_TX0CTRL1_NB_EN	0x0400
-
-/* TG3_PCIEPHY_XGXS_BLK1 */
-#define TG3_PCIEPHY_PWRMGMT4		0x1a
-#define TG3_PCIEPHY_PWRMGMT4_L1PLLPD_EN	0x0038
-#define TG3_PCIEPHY_PWRMGMT4_LOWPWR_EN	0x4000
-
-
 /*** Tigon3 specific PHY MII registers. ***/
 #define  TG3_BMCR_SPEED1000		0x0040