Fix wrong link speed on some sky2 network adapters (rhbz #757839)

kernel.spec

@@ -800,6 +800,9 @@ Patch21220: mac80211_offchannel_rework_revert.patch
 
 Patch21225: pci-Rework-ASPM-disable-code.patch
 
+#rhbz #757839
+Patch21230: net-sky2-88e8059-fix-link-speed.patch
+
 %endif
 
 BuildRoot: %{_tmppath}/kernel-%{KVERREL}-root
@@ -1469,6 +1472,9 @@ ApplyPatch mac80211_offchannel_rework_revert.patch
 
 ApplyPatch pci-Rework-ASPM-disable-code.patch
 
+#rhbz #757839
+ApplyPatch net-sky2-88e8059-fix-link-speed.patch
+
 # END OF PATCH APPLICATIONS
 
 %endif
@@ -2204,6 +2210,7 @@ fi
 - Linux 3.1.5-rc2
 - Drop obsolete changelog, set rcrev and gitrev to 0 so they're
   less distracting.
+- Fix wrong link speed on some sky2 network adapters (rhbz #757839)
 
 * Thu Dec 08 2011 Ben Skeggs <bskeggs@redhat.com> 3.1.5-0.rc1.2
 - nouveau: fix accel on GF108 and enable on GF108/GF110

net-sky2-88e8059-fix-link-speed.patch

@@ -0,0 +1,42 @@
+commit 27d240fdae2808d727ad9ce48ec029731a457524
+Author: stephen hemminger <shemminger@vyatta.com>
+Date:   Fri Nov 4 12:17:17 2011 +0000
+
+    sky2: fix regression on Yukon Optima
+
+    [ backport to 3.1 ]
+    
+    Changes to support other Optima types, introduced an accidental
+    regression that caused 88E8059 to come up in 10Mbit/sec.
+    
+    The Yukon Optima supports a reverse auto-negotiation feature that
+    was incorrectly setup, and not needed. The feature could be used to
+    allow wake-on-lan at higher speeds. But doing it correctly would require
+    other changes to initialization.
+    
+    Reported-by: Pavel Mateja <pavel@netsafe.cz>
+    Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
+    Signed-off-by: David S. Miller <davem@davemloft.net>
+
+diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
+index cbd026f..fdc6c39 100644
+--- a/drivers/net/sky2.c
++++ b/drivers/net/sky2.c
+@@ -366,17 +366,6 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
+ 				gm_phy_write(hw, port, PHY_MARV_FE_SPEC_2, spec);
+ 			}
+ 		} else {
+-			if (hw->chip_id >= CHIP_ID_YUKON_OPT) {
+-				u16 ctrl2 = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL_2);
+-
+-				/* enable PHY Reverse Auto-Negotiation */
+-				ctrl2 |= 1u << 13;
+-
+-				/* Write PHY changes (SW-reset must follow) */
+-				gm_phy_write(hw, port, PHY_MARV_EXT_CTRL_2, ctrl2);
+-			}
+-
+-
+ 			/* disable energy detect */
+ 			ctrl &= ~PHY_M_PC_EN_DET_MSK;
+