From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net-next 06/13] igb: Implement support to power sfp cage and turn on I2C Date: Thu, 4 Apr 2013 04:37:53 -0700 Message-ID: <1365075480-20183-7-git-send-email-jeffrey.t.kirsher@intel.com> References: <1365075480-20183-1-git-send-email-jeffrey.t.kirsher@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: "Akeem G. Abodunrin" , netdev@vger.kernel.org, gospo@redhat.com, sassmann@redhat.com, =?UTF-8?q?Aur=C3=A9lien=20Guillaume?= , Jeff Kirsher To: davem@davemloft.net Return-path: Received: from mga02.intel.com ([134.134.136.20]:29187 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758861Ab3DDLiX (ORCPT ); Thu, 4 Apr 2013 07:38:23 -0400 In-Reply-To: <1365075480-20183-1-git-send-email-jeffrey.t.kirsher@intel.com> Sender: netdev-owner@vger.kernel.org List-ID: =46rom: "Akeem G. Abodunrin" Based on original patch from Aur=C3=A9lien Guillaume This patch adds support to turn on I2C, with sfp cage powered. CC: Aur=C3=A9lien 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 12b1d84..856364a 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 e1= 000_hw *hw) */ wr32(E1000_SCTL, E1000_SCTL_DISABLE_SERDES_LOOPBACK); =20 - /* power on the sfp cage if present */ + /* power on the sfp cage if present and turn on I2C */ ctrl_ext =3D rd32(E1000_CTRL_EXT); ctrl_ext &=3D ~E1000_CTRL_EXT_SDP3_DATA; + ctrl_ext |=3D E1000_CTRL_I2C_ENA; wr32(E1000_CTRL_EXT, ctrl_ext); =20 ctrl_reg =3D rd32(E1000_CTRL); --=20 1.7.11.7