diff options
| author | David Ertman <david.m.ertman@intel.com> | 2014-07-11 06:20:51 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2014-07-25 21:00:54 -0700 |
| commit | b4c1e6bf1c8522a6c6c8f29226a1e2cf126431df (patch) | |
| tree | 811cf9c293177d4502fee26415926012a96394fe /drivers/net/ethernet/intel/e1000e/ich8lan.h | |
| parent | 491a04d2812b0a665bda34ea39875833dc7a1aaf (diff) | |
e1000e: Add support for EEE in Sx states
On I217 and newer hardware, EEE is enabled in the PHY by the software
when link is up and disabled by the hardware when link is lost.
To enable EEE in Sx (When both ends of the link support, and are enabled
for, EEE and 100Mbps), we need to disable LPLU and configure the PHY to
automatically enable EEE when link is up, since there will be no software
to complete the task.
To configure this in the PHY, the Auto Enable LPI bit in the Low Power
Idle GPIO Control register must be set. For normal operation in S0, this
bit must be cleared.
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/e1000e/ich8lan.h')
| -rw-r--r-- | drivers/net/ethernet/intel/e1000e/ich8lan.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.h b/drivers/net/ethernet/intel/e1000e/ich8lan.h index 5515126c81c1..8066a498eaac 100644 --- a/drivers/net/ethernet/intel/e1000e/ich8lan.h +++ b/drivers/net/ethernet/intel/e1000e/ich8lan.h @@ -217,6 +217,10 @@ #define I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_MASK 0x3F00 #define I217_INBAND_CTRL_LINK_STAT_TX_TIMEOUT_SHIFT 8 +/* Low Power Idle GPIO Control */ +#define I217_LPI_GPIO_CTRL PHY_REG(772, 18) +#define I217_LPI_GPIO_CTRL_AUTO_EN_LPI 0x0800 + /* PHY Low Power Idle Control */ #define I82579_LPI_CTRL PHY_REG(772, 20) #define I82579_LPI_CTRL_100_ENABLE 0x2000 |