diff mbox series

[v2,15/54] net/e1000/base: increase PHY power up delay

Message ID fc512cdad2d37827e278cf6ab01b1a7d493b7fc6.1738681726.git.anatoly.burakov@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Bruce Richardson
Headers
Series Merge Intel IGC and E1000 drivers, and update E1000 base code |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Burakov, Anatoly Feb. 4, 2025, 3:10 p.m. UTC 
From: Sasha Neftin <sasha.neftin@intel.com>

PHY specification for i225 requires 300 microsecond delay after power up
sequence, so increase the delay after power up to 300 microseconds.

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

Patch

diff --git a/drivers/net/intel/e1000/base/e1000_phy.c b/drivers/net/intel/e1000/base/e1000_phy.c
index 6e8f4ff4ea..eb0c6d7c53 100644
--- a/drivers/net/intel/e1000/base/e1000_phy.c
+++ b/drivers/net/intel/e1000/base/e1000_phy.c
@@ -3568,6 +3568,7 @@  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);
 }
 
 /**