net: phy: supplement support for Micrel's KSZ9031

[karo-tx-uboot.git] / drivers / net / phy / micrel.c

diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 2a8b6cb9479c716dd61ff8046dd38c27729fb77d..aa9cbcfffc0465075ed7574e7ac76ffea908db48 100644 (file)
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -148,9 +148,43 @@ static struct phy_driver ksz9021_driver = {
 };
 #endif
 
-/*
+/**
  * KSZ9031
  */
+/* PHY Registers */
+#define MII_KSZ9031_MMD_ACCES_CTRL     0x0d
+#define MII_KSZ9031_MMD_REG_DATA       0x0e
+
+/* Accessors to extended registers*/
+int ksz9031_phy_extended_write(struct phy_device *phydev,
+                              int devaddr, int regnum, u16 mode, u16 val)
+{
+       /*select register addr for mmd*/
+       phy_write(phydev, MDIO_DEVAD_NONE,
+                 MII_KSZ9031_MMD_ACCES_CTRL, devaddr);
+       /*select register for mmd*/
+       phy_write(phydev, MDIO_DEVAD_NONE,
+                 MII_KSZ9031_MMD_REG_DATA, regnum);
+       /*setup mode*/
+       phy_write(phydev, MDIO_DEVAD_NONE,
+                 MII_KSZ9031_MMD_ACCES_CTRL, (mode | devaddr));
+       /*write the value*/
+       return  phy_write(phydev, MDIO_DEVAD_NONE,
+               MII_KSZ9031_MMD_REG_DATA, val);
+}
+
+int ksz9031_phy_extended_read(struct phy_device *phydev, int devaddr,
+                             int regnum, u16 mode)
+{
+       phy_write(phydev, MDIO_DEVAD_NONE,
+                 MII_KSZ9031_MMD_ACCES_CTRL, devaddr);
+       phy_write(phydev, MDIO_DEVAD_NONE,
+                 MII_KSZ9031_MMD_REG_DATA, regnum);
+       phy_write(phydev, MDIO_DEVAD_NONE,
+                 MII_KSZ9031_MMD_ACCES_CTRL, (devaddr | mode));
+       return phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZ9031_MMD_REG_DATA);
+}
+
 static struct phy_driver ksz9031_driver = {
        .name = "Micrel ksz9031",
        .uid  = 0x221620,