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e1000e: use hardware default values for Transmit Control register

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This code snippet is simply writing default values to the register which is
unnecessary since the values are programmed into the register by default.
There is a special case for 80003es2lan needing the Retransmit on Late
Collision bit set but that is also done in e1000_init_hw_80003es2lan().

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Bruce Allan 2011-12-16 00:46:17 +00:00 committed by Jeff Kirsher
parent 6a92f732f5
commit c550b12185
1 changed files with 1 additions and 9 deletions
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10
drivers/net/ethernet/intel/e1000e/netdev.c
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@ -2770,7 +2770,7 @@ static void e1000_configure_tx(struct e1000_adapter *adapter)
struct e1000_hw *hw = &adapter->hw;
struct e1000_ring *tx_ring = adapter->tx_ring;
u64 tdba;
u32 tdlen, tctl, tarc;
u32 tdlen, tarc;
/* Setup the HW Tx Head and Tail descriptor pointers */
tdba = tx_ring->dma;
@ -2808,12 +2808,6 @@ static void e1000_configure_tx(struct e1000_adapter *adapter)
/* erratum work around: set txdctl the same for both queues */
ew32(TXDCTL(1), er32(TXDCTL(0)));
/* Program the Transmit Control Register */
tctl = er32(TCTL);
tctl &= ~E1000_TCTL_CT;
tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC |
(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
if (adapter->flags & FLAG_TARC_SPEED_MODE_BIT) {
tarc = er32(TARC(0));
/*
@ -2845,8 +2839,6 @@ static void e1000_configure_tx(struct e1000_adapter *adapter)
/* enable Report Status bit */
adapter->txd_cmd |= E1000_TXD_CMD_RS;
ew32(TCTL, tctl);
e1000e_config_collision_dist(hw);
}