e1000e: remove unnecessary 82577 workaround causing link issues
A workaround for pre-release versions of 82577 is causing link issues on some switches. The workaround is no longer needed on production parts so remove it. Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -71,7 +71,6 @@ static const u16 e1000_igp_2_cable_length_table[] =
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#define I82577_CFG_ASSERT_CRS_ON_TX (1 << 15)
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#define I82577_CFG_ENABLE_DOWNSHIFT (3 << 10) /* auto downshift 100/10 */
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#define I82577_CTRL_REG 23
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#define I82577_CTRL_DOWNSHIFT_MASK (7 << 10)
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/* 82577 specific PHY registers */
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#define I82577_PHY_CTRL_2 18
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@ -660,15 +659,6 @@ s32 e1000_copper_link_setup_82577(struct e1000_hw *hw)
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phy_data |= I82577_CFG_ENABLE_DOWNSHIFT;
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ret_val = phy->ops.write_phy_reg(hw, I82577_CFG_REG, phy_data);
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if (ret_val)
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goto out;
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/* Set number of link attempts before downshift */
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ret_val = phy->ops.read_phy_reg(hw, I82577_CTRL_REG, &phy_data);
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if (ret_val)
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goto out;
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phy_data &= ~I82577_CTRL_DOWNSHIFT_MASK;
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ret_val = phy->ops.write_phy_reg(hw, I82577_CTRL_REG, phy_data);
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out:
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return ret_val;
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