[PATCH 6/6] phylib: m88e1111: enable SGMII mode

[Kim Phillips]

From: Kapil Juneja <[EMAIL PROTECTED]>

If connected via SGMII, initialize with SGMII mode configured.

Signed-off-by: Kapil Juneja <[EMAIL PROTECTED]>
Signed-off-by: Andy Fleming <[EMAIL PROTECTED]>
Signed-off-by: Kim Phillips <[EMAIL PROTECTED]>
---
 drivers/net/phy/marvell.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index b87f8d2..d4cc952 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -60,6 +60,7 @@
 #define MII_M1111_PHY_EXT_SR           0x1b
 #define MII_M1111_HWCFG_MODE_MASK      0xf
 #define MII_M1111_HWCFG_MODE_RGMII     0xb
+#define MII_M1111_HWCFG_MODE_SGMII_NO_CLK      0x4
 
 MODULE_DESCRIPTION("Marvell PHY driver");
 MODULE_AUTHOR("Andy Fleming");
@@ -169,6 +170,21 @@ static int m88e1111_config_init(struct phy_device *phydev)
                        return err;
        }
 
+       if (phydev->interface == PHY_INTERFACE_MODE_SGMII)
+               int temp;
+
+               temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
+               if (temp < 0)
+                       return temp;
+
+               temp &= ~(MII_M1111_HWCFG_MODE_MASK);
+               temp |= MII_M1111_HWCFG_MODE_SGMII_NO_CLK;
+
+               err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
+               if (err < 0)
+                       return err;
+       }
+
        err = phy_write(phydev, MII_BMCR, BMCR_RESET);
        if (err < 0)
                return err;
-- 
1.5.0.3

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