diff mbox series

[54/70] net/e1000/base: correct PHY power up flow for i225

Message ID 20200622064634.70941-55-guinanx.sun@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Qi Zhang
Headers
Series update e1000 base code |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Guinan Sun June 22, 2020, 6:46 a.m. UTC 
  gPHY GPY211A1 specification (i225 PHY) required 300 microseconds
delay after a good power up sequence.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
---
 drivers/net/e1000/base/e1000_phy.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

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);
 }
 
 /**