From: Andy Fleming <aflem...@gmail.com>
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 <aflem...@gmail.com>
Signed-off-by: Shaohui Xie <shaohui....@freescale.com>
---
changes for v6:
rebased on top of 'net-next' tree. commit id 11b57f90257c1.
include/linux/phy.h | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 7c81dd8..3eda43c 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);
--
1.8.4.1
--
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