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net: mdio: aspeed: Introduce read write function for c22 and c45
Add following additional functions to move out the implementation from aspeed_mdio_read() and aspeed_mdio_write(). c22: - aspeed_mdio_read_c22() - aspeed_mdio_write_c22() c45: - aspeed_mdio_read_c45() - aspeed_mdio_write_c45() Signed-off-by: Potin Lai <potin.lai@quantatw.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 34 additions and 12 deletions
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@ -79,17 +79,10 @@ static int aspeed_mdio_get_data(struct mii_bus *bus)
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return FIELD_GET(ASPEED_MDIO_DATA_MIIRDATA, data);
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}
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static int aspeed_mdio_read(struct mii_bus *bus, int addr, int regnum)
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static int aspeed_mdio_read_c22(struct mii_bus *bus, int addr, int regnum)
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{
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int rc;
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dev_dbg(&bus->dev, "%s: addr: %d, regnum: %d\n", __func__, addr,
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regnum);
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/* Just clause 22 for the moment */
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if (regnum & MII_ADDR_C45)
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return -EOPNOTSUPP;
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rc = aspeed_mdio_op(bus, ASPEED_MDIO_CTRL_ST_C22, MDIO_C22_OP_READ,
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addr, regnum, 0);
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if (rc < 0)
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@ -98,17 +91,46 @@ static int aspeed_mdio_read(struct mii_bus *bus, int addr, int regnum)
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return aspeed_mdio_get_data(bus);
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}
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static int aspeed_mdio_write_c22(struct mii_bus *bus, int addr, int regnum,
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u16 val)
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{
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return aspeed_mdio_op(bus, ASPEED_MDIO_CTRL_ST_C22, MDIO_C22_OP_WRITE,
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addr, regnum, val);
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}
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static int aspeed_mdio_read_c45(struct mii_bus *bus, int addr, int regnum)
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{
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/* TODO: add c45 support */
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return -EOPNOTSUPP;
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}
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static int aspeed_mdio_write_c45(struct mii_bus *bus, int addr, int regnum,
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u16 val)
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{
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/* TODO: add c45 support */
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return -EOPNOTSUPP;
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}
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static int aspeed_mdio_read(struct mii_bus *bus, int addr, int regnum)
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{
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dev_dbg(&bus->dev, "%s: addr: %d, regnum: %d\n", __func__, addr,
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regnum);
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if (regnum & MII_ADDR_C45)
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return aspeed_mdio_read_c45(bus, addr, regnum);
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return aspeed_mdio_read_c22(bus, addr, regnum);
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}
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static int aspeed_mdio_write(struct mii_bus *bus, int addr, int regnum, u16 val)
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{
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dev_dbg(&bus->dev, "%s: addr: %d, regnum: %d, val: 0x%x\n",
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__func__, addr, regnum, val);
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/* Just clause 22 for the moment */
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if (regnum & MII_ADDR_C45)
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return -EOPNOTSUPP;
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return aspeed_mdio_write_c45(bus, addr, regnum, val);
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return aspeed_mdio_op(bus, ASPEED_MDIO_CTRL_ST_C22, MDIO_C22_OP_WRITE,
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addr, regnum, val);
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return aspeed_mdio_write_c22(bus, addr, regnum, val);
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}
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static int aspeed_mdio_probe(struct platform_device *pdev)
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