-/*******************************************************************************
-
- Intel PRO/1000 Linux driver
- Copyright(c) 1999 - 2013 Intel Corporation.
-
- This program is free software; you can redistribute it and/or modify it
- under the terms and conditions of the GNU General Public License,
- version 2, as published by the Free Software Foundation.
-
- This program is distributed in the hope it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- more details.
-
- You should have received a copy of the GNU General Public License along with
- this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
-
- The full GNU General Public License is included in this distribution in
- the file called "COPYING".
-
- Contact Information:
- Linux NICS <linux.nics@intel.com>
- e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
- Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
-
-*******************************************************************************/
+/* Intel PRO/1000 Linux driver
+ * Copyright(c) 1999 - 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * Linux NICS <linux.nics@intel.com>
+ * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ */
/* 82562G 10/100 Network Connection
* 82562G-2 10/100 Network Connection
**/
static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
{
+ struct e1000_adapter *adapter = hw->adapter;
u32 mac_reg, fwsm = er32(FWSM);
s32 ret_val;
hw->phy.ops.release(hw);
if (!ret_val) {
+
+ /* Check to see if able to reset PHY. Print error if not */
+ if (hw->phy.ops.check_reset_block(hw)) {
+ e_err("Reset blocked by ME\n");
+ goto out;
+ }
+
/* Reset the PHY before any access to it. Doing so, ensures
* that the PHY is in a known good state before we read/write
* PHY registers. The generic reset is sufficient here,
* because we haven't determined the PHY type yet.
*/
ret_val = e1000e_phy_hw_reset_generic(hw);
+ if (ret_val)
+ goto out;
+
+ /* On a successful reset, possibly need to wait for the PHY
+ * to quiesce to an accessible state before returning control
+ * to the calling function. If the PHY does not quiesce, then
+ * return E1000E_BLK_PHY_RESET, as this is the condition that
+ * the PHY is in.
+ */
+ ret_val = hw->phy.ops.check_reset_block(hw);
+ if (ret_val)
+ e_err("ME blocked access to PHY after reset\n");
}
out:
* Enable/disable EEE based on setting in dev_spec structure, the duplex of
* the link and the EEE capabilities of the link partner. The LPI Control
* register bits will remain set only if/when link is up.
+ *
+ * EEE LPI must not be asserted earlier than one second after link is up.
+ * On 82579, EEE LPI should not be enabled until such time otherwise there
+ * can be link issues with some switches. Other devices can have EEE LPI
+ * enabled immediately upon link up since they have a timer in hardware which
+ * prevents LPI from being asserted too early.
**/
-static s32 e1000_set_eee_pchlan(struct e1000_hw *hw)
+s32 e1000_set_eee_pchlan(struct e1000_hw *hw)
{
struct e1000_dev_spec_ich8lan *dev_spec = &hw->dev_spec.ich8lan;
s32 ret_val;
e1000e_check_downshift(hw);
/* Enable/Disable EEE after link up */
- ret_val = e1000_set_eee_pchlan(hw);
- if (ret_val)
- return ret_val;
+ if (hw->phy.type > e1000_phy_82579) {
+ ret_val = e1000_set_eee_pchlan(hw);
+ if (ret_val)
+ return ret_val;
+ }
/* If we are forcing speed/duplex, then we simply return since
* we have already determined whether we have link or not.
**/
static s32 e1000_check_reset_block_ich8lan(struct e1000_hw *hw)
{
- u32 fwsm;
-
- fwsm = er32(FWSM);
+ bool blocked = false;
+ int i = 0;
- return (fwsm & E1000_ICH_FWSM_RSPCIPHY) ? 0 : E1000_BLK_PHY_RESET;
+ while ((blocked = !(er32(FWSM) & E1000_ICH_FWSM_RSPCIPHY)) &&
+ (i++ < 10))
+ usleep_range(10000, 20000);
+ return blocked ? E1000_BLK_PHY_RESET : 0;
}
/**
projects / linux-2.6-block.git / blobdiff