diff options
Diffstat (limited to 'drivers/net/mdio/mdio-i2c.c')
| -rw-r--r-- | drivers/net/mdio/mdio-i2c.c | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/drivers/net/mdio/mdio-i2c.c b/drivers/net/mdio/mdio-i2c.c index bf8bf5e20faf..1e0c206d0f2e 100644 --- a/drivers/net/mdio/mdio-i2c.c +++ b/drivers/net/mdio/mdio-i2c.c @@ -30,7 +30,8 @@ static unsigned int i2c_mii_phy_addr(int phy_id) return phy_id + 0x40; } -static int i2c_mii_read_default(struct mii_bus *bus, int phy_id, int reg) +static int i2c_mii_read_default_c45(struct mii_bus *bus, int phy_id, int devad, + int reg) { struct i2c_adapter *i2c = bus->priv; struct i2c_msg msgs[2]; @@ -41,8 +42,8 @@ static int i2c_mii_read_default(struct mii_bus *bus, int phy_id, int reg) return 0xffff; p = addr; - if (reg & MII_ADDR_C45) { - *p++ = 0x20 | ((reg >> 16) & 31); + if (devad >= 0) { + *p++ = 0x20 | devad; *p++ = reg >> 8; } *p++ = reg; @@ -64,8 +65,8 @@ static int i2c_mii_read_default(struct mii_bus *bus, int phy_id, int reg) return data[0] << 8 | data[1]; } -static int i2c_mii_write_default(struct mii_bus *bus, int phy_id, int reg, - u16 val) +static int i2c_mii_write_default_c45(struct mii_bus *bus, int phy_id, + int devad, int reg, u16 val) { struct i2c_adapter *i2c = bus->priv; struct i2c_msg msg; @@ -76,8 +77,8 @@ static int i2c_mii_write_default(struct mii_bus *bus, int phy_id, int reg, return 0; p = data; - if (reg & MII_ADDR_C45) { - *p++ = (reg >> 16) & 31; + if (devad >= 0) { + *p++ = devad; *p++ = reg >> 8; } *p++ = reg; @@ -94,6 +95,17 @@ static int i2c_mii_write_default(struct mii_bus *bus, int phy_id, int reg, return ret < 0 ? ret : 0; } +static int i2c_mii_read_default_c22(struct mii_bus *bus, int phy_id, int reg) +{ + return i2c_mii_read_default_c45(bus, phy_id, -1, reg); +} + +static int i2c_mii_write_default_c22(struct mii_bus *bus, int phy_id, int reg, + u16 val) +{ + return i2c_mii_write_default_c45(bus, phy_id, -1, reg, val); +} + /* RollBall SFPs do not access internal PHY via I2C address 0x56, but * instead via address 0x51, when SFP page is set to 0x03 and password to * 0xffffffff. @@ -285,9 +297,6 @@ static int i2c_mii_read_rollball(struct mii_bus *bus, int phy_id, int reg) int bus_addr, ret; u16 val; - if (!(reg & MII_ADDR_C45)) - return -EOPNOTSUPP; - bus_addr = i2c_mii_phy_addr(phy_id); if (bus_addr != ROLLBALL_PHY_I2C_ADDR) return 0xffff; @@ -319,9 +328,6 @@ static int i2c_mii_write_rollball(struct mii_bus *bus, int phy_id, int reg, int bus_addr, ret; u8 buf[6]; - if (!(reg & MII_ADDR_C45)) - return -EOPNOTSUPP; - bus_addr = i2c_mii_phy_addr(phy_id); if (bus_addr != ROLLBALL_PHY_I2C_ADDR) return 0; @@ -403,8 +409,10 @@ struct mii_bus *mdio_i2c_alloc(struct device *parent, struct i2c_adapter *i2c, mii->write = i2c_mii_write_rollball; break; default: - mii->read = i2c_mii_read_default; - mii->write = i2c_mii_write_default; + mii->read = i2c_mii_read_default_c22; + mii->write = i2c_mii_write_default_c22; + mii->read_c45 = i2c_mii_read_default_c45; + mii->write_c45 = i2c_mii_write_default_c45; break; } |