提交 69cfbc95 编写于 作者: Y Yanir Lubetkin 提交者: Jeff Kirsher

e1000e: i219 - increase IPG for speed 10/100 full duplex

In SPT/i219, there were CRC errors in speed 10/100 full duplex.
The solution given by the HW team is to increase the IPG from 8 to 0xC
Signed-off-by: NYanir Lubetkin <yanirx.lubetkin@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
上级 6607c99e
......@@ -1400,16 +1400,20 @@ static s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
if (((hw->mac.type == e1000_pch2lan) ||
(hw->mac.type == e1000_pch_lpt) ||
(hw->mac.type == e1000_pch_spt)) && link) {
u32 reg;
u16 speed, duplex;
reg = er32(STATUS);
e1000e_get_speed_and_duplex_copper(hw, &speed, &duplex);
tipg_reg = er32(TIPG);
tipg_reg &= ~E1000_TIPG_IPGT_MASK;
if (!(reg & (E1000_STATUS_FD | E1000_STATUS_SPEED_MASK))) {
if (duplex == HALF_DUPLEX && speed == SPEED_10) {
tipg_reg |= 0xFF;
/* Reduce Rx latency in analog PHY */
emi_val = 0;
} else if (hw->mac.type == e1000_pch_spt &&
duplex == FULL_DUPLEX && speed != SPEED_1000) {
tipg_reg |= 0xC;
emi_val = 1;
} else {
/* Roll back the default values */
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册