[PATCH 1/5][v2] phylib: Add Clause 45 read/write functions
From: <hidden>
Date: 2013-11-26 11:11:49
Also in:
lkml
Subsystem:
ethernet phy library, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, Linus Torvalds
From: Andy Fleming <redacted> 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 <redacted> Signed-off-by: Shaohui Xie <redacted> --- v2: no change. include/linux/phy.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+)
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 48a4dc3..2549b42 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h@@ -498,6 +498,21 @@ static inline int phy_read(struct phy_device *phydev, u32 regnum) } /** + * 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) +{ + return mdiobus_read(phydev->bus, phydev->addr, + MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff)); +} + +/** * phy_write - Convenience function for writing a given PHY register * @phydev: the phy_device struct * @regnum: register number to write
@@ -533,6 +548,24 @@ 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) +{ + 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); struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45);
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1.8.4.1