Merge branch 'master' of git://git.denx.de/u-boot-nand-flash

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

diff --git a/drivers/net/phy/teranetics.c b/drivers/net/phy/teranetics.c
index 78447b711f5e51a8fca4f072d4622618ace28d41..84ce7362f064f71ccff6793d403c40993dbb97c5 100644 (file)
--- a/drivers/net/phy/teranetics.c
+++ b/drivers/net/phy/teranetics.c
@@ -34,9 +34,21 @@ int tn2020_config(struct phy_device *phydev)
                unsigned short restart_an = (MDIO_AN_CTRL1_RESTART |
                                                MDIO_AN_CTRL1_ENABLE |
                                                MDIO_AN_CTRL1_XNP);
+               u8 phy_hwversion;
 
-               phy_write(phydev, 30, 93, 2);
-               phy_write(phydev, MDIO_MMD_AN, MDIO_CTRL1, restart_an);
+               /*
+                * bit 15:12 of register 30.32 indicates PHY hardware
+                * version. It can be used to distinguish TN80xx from
+                * TN2020. TN2020 needs write 0x2 to 30.93, but TN80xx
+                * needs 0x1.
+                */
+               phy_hwversion = (phy_read(phydev, 30, 32) >> 12) & 0xf;
+               if (phy_hwversion <= 3) {
+                       phy_write(phydev, 30, 93, 2);
+                       phy_write(phydev, MDIO_MMD_AN, MDIO_CTRL1, restart_an);
+               } else {
+                       phy_write(phydev, 30, 93, 1);
+               }
        }
 
        return 0;