e1000e: use hardware default values for Transmit Control register
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>
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index fb29990..89af6c0 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -2770,7 +2770,7 @@
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 @@
/* 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 @@
/* enable Report Status bit */
adapter->txd_cmd |= E1000_TXD_CMD_RS;
- ew32(TCTL, tctl);
-
e1000e_config_collision_dist(hw);
}