[RFT] sky2: yukon-ec-u phy power problems

[Stephen Hemminger]

The sky2 driver clears some bits in the PHY control register, that cause
the PHY interface to get changed.  Some of these deal with voltage and power
savings as well. This may explain some of the failures on Gigabyte DS-3 motherboard.

The clue to possible problem was looking at why loading/unloading sky2 would
break vendor sk98lin driver (ie what registers changed).


--- a/drivers/net/sky2.c	2007-08-21 09:53:41.000000000 -0700
+++ b/drivers/net/sky2.c	2007-08-21 09:53:43.000000000 -0700
@@ -696,8 +696,8 @@ static void sky2_mac_init(struct sky2_hw
 	int i;
 	const u8 *addr = hw->dev[port]->dev_addr;
 
-	sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
-	sky2_write32(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
+	sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_SET);
+	sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR);
 
 	sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR);
 
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/