gPHY GPY211A1 specification (i225 PHY) required 300 microseconds
delay after a good power up sequence.
Signed-off-by: Sasha Neftin <sasha.nef...@intel.com>
Signed-off-by: Guinan Sun <guinanx....@intel.com>
---
drivers/net/e1000/base/e1000_phy.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/e1000/base/e1000_phy.c
b/drivers/net/e1000/base/e1000_phy.c
index bcb3df2f3..b9d8739ee 100644
--- a/drivers/net/e1000/base/e1000_phy.c
+++ b/drivers/net/e1000/base/e1000_phy.c
@@ -3528,6 +3528,7 @@ void e1000_power_up_phy_copper(struct e1000_hw *hw)
hw->phy.ops.read_reg(hw, PHY_CONTROL, &mii_reg);
mii_reg &= ~MII_CR_POWER_DOWN;
hw->phy.ops.write_reg(hw, PHY_CONTROL, mii_reg);
+ usec_delay(300);
}
/**
--
2.17.1
