diff options
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/netdev.c')
-rw-r--r-- | drivers/net/ethernet/intel/e1000e/netdev.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 177c6da80c57..e0b074820b47 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -6404,6 +6404,31 @@ static void e1000e_s0ix_entry_flow(struct e1000_adapter *adapter) mac_data |= BIT(3); ew32(CTRL_EXT, mac_data); + /* Disable disconnected cable conditioning for Power Gating */ + mac_data = er32(DPGFR); + mac_data |= BIT(2); + ew32(DPGFR, mac_data); + + /* Don't wake from dynamic Power Gating with clock request */ + mac_data = er32(FEXTNVM12); + mac_data |= BIT(12); + ew32(FEXTNVM12, mac_data); + + /* Ungate PGCB clock */ + mac_data = er32(FEXTNVM9); + mac_data |= BIT(28); + ew32(FEXTNVM9, mac_data); + + /* Enable K1 off to enable mPHY Power Gating */ + mac_data = er32(FEXTNVM6); + mac_data |= BIT(31); + ew32(FEXTNVM12, mac_data); + + /* Enable mPHY power gating for any link and speed */ + mac_data = er32(FEXTNVM8); + mac_data |= BIT(9); + ew32(FEXTNVM8, mac_data); + /* Enable the Dynamic Clock Gating in the DMA and MAC */ mac_data = er32(CTRL_EXT); mac_data |= E1000_CTRL_EXT_DMA_DYN_CLK_EN; @@ -6433,6 +6458,35 @@ static void e1000e_s0ix_exit_flow(struct e1000_adapter *adapter) mac_data |= BIT(0); ew32(FEXTNVM7, mac_data); + /* Disable mPHY power gating for any link and speed */ + mac_data = er32(FEXTNVM8); + mac_data &= ~BIT(9); + ew32(FEXTNVM8, mac_data); + + /* Disable K1 off */ + mac_data = er32(FEXTNVM6); + mac_data &= ~BIT(31); + ew32(FEXTNVM12, mac_data); + + /* Disable Ungate PGCB clock */ + mac_data = er32(FEXTNVM9); + mac_data &= ~BIT(28); + ew32(FEXTNVM9, mac_data); + + /* Cancel not waking from dynamic + * Power Gating with clock request + */ + mac_data = er32(FEXTNVM12); + mac_data &= ~BIT(12); + ew32(FEXTNVM12, mac_data); + + /* Cancel disable disconnected cable conditioning + * for Power Gating + */ + mac_data = er32(DPGFR); + mac_data &= ~BIT(2); + ew32(DPGFR, mac_data); + /* Disable Dynamic Power Gating */ mac_data = er32(CTRL_EXT); mac_data &= 0xFFFFFFF7; |