From e00bf607ea0b6663f1cb206a436258d2eabe6fd7 Mon Sep 17 00:00:00 2001 From: "Akeem G. Abodunrin" Date: Tue, 29 Jan 2013 10:15:26 +0000 Subject: [PATCH] igb: Implement support to power sfp cage and turn on I2C MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Based on original patch from Aurélien Guillaume This patch adds support to turn on I2C, with sfp cage powered. CC: Aurélien Guillaume Signed-off-by: Akeem G Abodunrin Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igb/e1000_82575.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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); -- 2.39.5