diff options
| author |   Akeem G. Abodunrin <akeem.g.abodunrin@intel.com> | 2013-01-29 10:15:26 +0000 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2013-04-18 16:39:52 -0700 |
| commit | e00bf607ea0b6663f1cb206a436258d2eabe6fd7 (patch) | |
| tree | aa441b83858e74ed20805dcb6d754db8f67497a6 /drivers/net/ethernet/intel | |
| parent | igb: Support to read and export SFF-8472/8079 data (diff) | |
| download | linux-dev-e00bf607ea0b6663f1cb206a436258d2eabe6fd7.tar.xz linux-dev-e00bf607ea0b6663f1cb206a436258d2eabe6fd7.zip | |
igb: Implement support to power sfp cage and turn on I2C
Based on original patch from Aurélien Guillaume <footplus@gmail.com>
This patch adds support to turn on I2C, with sfp cage powered.
CC: Aurélien Guillaume <footplus@gmail.com>
Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@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')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/e1000_82575.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index 12b1d8480808..856364a0bbb2 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -1420,9 +1420,10 @@ static s32 igb_setup_serdes_link_82575(struct e1000_hw *hw) */ wr32(E1000_SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK); - /* power on the sfp cage if present */ + /* power on the sfp cage if present and turn on I2C */ ctrl_ext = rd32(E1000_CTRL_EXT); ctrl_ext &= ~E1000_CTRL_EXT_SDP3_DATA; + ctrl_ext |= E1000_CTRL_I2C_ENA; wr32(E1000_CTRL_EXT, ctrl_ext); ctrl_reg = rd32(E1000_CTRL); |