diff options
| -rw-r--r-- | drivers/net/phy/phy-core.c | 140 | ||||
| -rw-r--r-- | include/linux/phy.h | 16 |
2 files changed, 156 insertions, 0 deletions
diff --git a/drivers/net/phy/phy-core.c b/drivers/net/phy/phy-core.c index b729ac8b2640..15f349e5995a 100644 --- a/drivers/net/phy/phy-core.c +++ b/drivers/net/phy/phy-core.c @@ -651,6 +651,146 @@ int phy_write_mmd(struct phy_device *phydev, int devad, u32 regnum, u16 val) EXPORT_SYMBOL(phy_write_mmd); /** + * __phy_package_read_mmd - read MMD reg relative to PHY package base addr + * @phydev: The phy_device struct + * @addr_offset: The offset to be added to PHY package base_addr + * @devad: The MMD to read from + * @regnum: The register on the MMD to read + * + * Convenience helper for reading a register of an MMD on a given PHY + * using the PHY package base address. The base address is added to + * the addr_offset value. + * + * Same calling rules as for __phy_read(); + * + * NOTE: It's assumed that the entire PHY package is either C22 or C45. + */ +int __phy_package_read_mmd(struct phy_device *phydev, + unsigned int addr_offset, int devad, + u32 regnum) +{ + int addr = phy_package_address(phydev, addr_offset); + + if (addr < 0) + return addr; + + if (regnum > (u16)~0 || devad > 32) + return -EINVAL; + + return mmd_phy_read(phydev->mdio.bus, addr, phydev->is_c45, devad, + regnum); +} +EXPORT_SYMBOL(__phy_package_read_mmd); + +/** + * phy_package_read_mmd - read MMD reg relative to PHY package base addr + * @phydev: The phy_device struct + * @addr_offset: The offset to be added to PHY package base_addr + * @devad: The MMD to read from + * @regnum: The register on the MMD to read + * + * Convenience helper for reading a register of an MMD on a given PHY + * using the PHY package base address. The base address is added to + * the addr_offset value. + * + * Same calling rules as for phy_read(); + * + * NOTE: It's assumed that the entire PHY package is either C22 or C45. + */ +int phy_package_read_mmd(struct phy_device *phydev, + unsigned int addr_offset, int devad, + u32 regnum) +{ + int addr = phy_package_address(phydev, addr_offset); + int val; + + if (addr < 0) + return addr; + + if (regnum > (u16)~0 || devad > 32) + return -EINVAL; + + phy_lock_mdio_bus(phydev); + val = mmd_phy_read(phydev->mdio.bus, addr, phydev->is_c45, devad, + regnum); + phy_unlock_mdio_bus(phydev); + + return val; +} +EXPORT_SYMBOL(phy_package_read_mmd); + +/** + * __phy_package_write_mmd - write MMD reg relative to PHY package base addr + * @phydev: The phy_device struct + * @addr_offset: The offset to be added to PHY package base_addr + * @devad: The MMD to write to + * @regnum: The register on the MMD to write + * @val: value to write to @regnum + * + * Convenience helper for writing a register of an MMD on a given PHY + * using the PHY package base address. The base address is added to + * the addr_offset value. + * + * Same calling rules as for __phy_write(); + * + * NOTE: It's assumed that the entire PHY package is either C22 or C45. + */ +int __phy_package_write_mmd(struct phy_device *phydev, + unsigned int addr_offset, int devad, + u32 regnum, u16 val) +{ + int addr = phy_package_address(phydev, addr_offset); + + if (addr < 0) + return addr; + + if (regnum > (u16)~0 || devad > 32) + return -EINVAL; + + return mmd_phy_write(phydev->mdio.bus, addr, phydev->is_c45, devad, + regnum, val); +} +EXPORT_SYMBOL(__phy_package_write_mmd); + +/** + * phy_package_write_mmd - write MMD reg relative to PHY package base addr + * @phydev: The phy_device struct + * @addr_offset: The offset to be added to PHY package base_addr + * @devad: The MMD to write to + * @regnum: The register on the MMD to write + * @val: value to write to @regnum + * + * Convenience helper for writing a register of an MMD on a given PHY + * using the PHY package base address. The base address is added to + * the addr_offset value. + * + * Same calling rules as for phy_write(); + * + * NOTE: It's assumed that the entire PHY package is either C22 or C45. + */ +int phy_package_write_mmd(struct phy_device *phydev, + unsigned int addr_offset, int devad, + u32 regnum, u16 val) +{ + int addr = phy_package_address(phydev, addr_offset); + int ret; + + if (addr < 0) + return addr; + + if (regnum > (u16)~0 || devad > 32) + return -EINVAL; + + phy_lock_mdio_bus(phydev); + ret = mmd_phy_write(phydev->mdio.bus, addr, phydev->is_c45, devad, + regnum, val); + phy_unlock_mdio_bus(phydev); + + return ret; +} +EXPORT_SYMBOL(phy_package_write_mmd); + +/** * phy_modify_changed - Function for modifying a PHY register * @phydev: the phy_device struct * @regnum: register number to modify diff --git a/include/linux/phy.h b/include/linux/phy.h index d653f660c39d..e9e85d347587 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -2064,6 +2064,22 @@ static inline int __phy_package_write(struct phy_device *phydev, return __mdiobus_write(phydev->mdio.bus, addr, regnum, val); } +int __phy_package_read_mmd(struct phy_device *phydev, + unsigned int addr_offset, int devad, + u32 regnum); + +int phy_package_read_mmd(struct phy_device *phydev, + unsigned int addr_offset, int devad, + u32 regnum); + +int __phy_package_write_mmd(struct phy_device *phydev, + unsigned int addr_offset, int devad, + u32 regnum, u16 val); + +int phy_package_write_mmd(struct phy_device *phydev, + unsigned int addr_offset, int devad, + u32 regnum, u16 val); + static inline bool __phy_package_set_once(struct phy_device *phydev, unsigned int b) { |