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author | Andy Fleming <afleming@gmail.com> | 2014-01-10 14:25:09 +0800 |
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committer | David S. Miller <davem@davemloft.net> | 2014-01-13 14:29:48 -0800 |
commit | efabdfb95ab698b51009e7783ddc2714cef0aecf (patch) | |
tree | e7736970c55cabb5a3046448ddf45554c7ab1adf /include/linux/phy.h | |
parent | b5d2b2858fe9ff0deda75a65dbb486612cb37a3d (diff) | |
download | linux-stable-efabdfb95ab698b51009e7783ddc2714cef0aecf.tar.gz linux-stable-efabdfb95ab698b51009e7783ddc2714cef0aecf.tar.bz2 linux-stable-efabdfb95ab698b51009e7783ddc2714cef0aecf.zip |
phylib: Add Clause 45 read/write functions
Need an extra parameter to read or write Clause 45 PHYs, so
need a different API with the extra parameter.
Signed-off-by: Andy Fleming <afleming@gmail.com>
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/phy.h')
-rw-r--r-- | include/linux/phy.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h index 7c81dd8870d4..3eda43c90875 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -488,6 +488,24 @@ struct phy_fixup { }; /** + * phy_read_mmd - Convenience function for reading a register + * from an MMD on a given PHY. + * @phydev: The phy_device struct + * @devad: The MMD to read from + * @regnum: The register on the MMD to read + * + * Same rules as for phy_read(); + */ +static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum) +{ + if (!phydev->is_c45) + return -EOPNOTSUPP; + + return mdiobus_read(phydev->bus, phydev->addr, + MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff)); +} + +/** * phy_read - Convenience function for reading a given PHY register * @phydev: the phy_device struct * @regnum: register number to read @@ -537,6 +555,27 @@ static inline bool phy_is_internal(struct phy_device *phydev) return phydev->is_internal; } +/** + * phy_write_mmd - Convenience function for writing a register + * on an MMD on a given PHY. + * @phydev: The phy_device struct + * @devad: The MMD to read from + * @regnum: The register on the MMD to read + * @val: value to write to @regnum + * + * Same rules as for phy_write(); + */ +static inline int phy_write_mmd(struct phy_device *phydev, int devad, + u32 regnum, u16 val) +{ + if (!phydev->is_c45) + return -EOPNOTSUPP; + + regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff); + + return mdiobus_write(phydev->bus, phydev->addr, regnum, val); +} + struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id, bool is_c45, struct phy_c45_device_ids *c45_ids); |