diff options
| author | Sasha Neftin <sasha.neftin@intel.com> | 2021-06-24 11:19:08 +0300 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2021-07-21 02:11:36 +0300 |
| commit | 3ad3e28cb203309fb29022dea41cd65df0583632 (patch) | |
| tree | 307a73bde46bf94b4965bafdc0f0d96f9c53221a /drivers/net/ethernet/intel/e1000e | |
| parent | ef407b86d3cc7ab7ad37658c1c7a094cb8f3b6b4 (diff) | |
| download | linux-3ad3e28cb203309fb29022dea41cd65df0583632.tar.xz | |
e1000e: Additional PHY power saving in S0ix
After transferring the MAC-PHY interface to the SMBus set the PHY
to S0ix low power idle mode.
Suggested-by: Dima Ruinskiy <dima.ruinskiy@intel.com>
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/netdev.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 27107a927455..79e8791119cd 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -6378,10 +6378,16 @@ static void e1000e_s0ix_entry_flow(struct e1000_adapter *adapter) ew32(CTRL_EXT, mac_data); /* DFT control: PHY bit: page769_20[0] = 1 + * page769_20[7] - PHY PLL stop + * page769_20[8] - PHY go to the electrical idle + * page769_20[9] - PHY serdes disable * Gate PPW via EXTCNF_CTRL - set 0x0F00[7] = 1 */ e1e_rphy(hw, I82579_DFT_CTRL, &phy_data); phy_data |= BIT(0); + phy_data |= BIT(7); + phy_data |= BIT(8); + phy_data |= BIT(9); e1e_wphy(hw, I82579_DFT_CTRL, phy_data); mac_data = er32(EXTCNF_CTRL); |