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- /* SPDX-License-Identifier: GPL-2.0+ */
- /*
- * Copyright 2011 Freescale Semiconductor, Inc.
- * Andy Fleming <afleming@gmail.com>
- *
- * This file pretty much stolen from Linux's mii.h/ethtool.h/phy.h
- */
- #ifndef _PHY_H
- #define _PHY_H
- #include <dm.h>
- #include <linux/list.h>
- #include <linux/mii.h>
- #include <linux/ethtool.h>
- #include <linux/mdio.h>
- #include <phy_interface.h>
- #define PHY_FIXED_ID 0xa5a55a5a
- /*
- * There is no actual id for this.
- * This is just a dummy id for gmii2rgmmi converter.
- */
- #define PHY_GMII2RGMII_ID 0x5a5a5a5a
- #define PHY_MAX_ADDR 32
- #define PHY_FLAG_BROKEN_RESET (1 << 0) /* soft reset not supported */
- #define PHY_DEFAULT_FEATURES (SUPPORTED_Autoneg | \
- SUPPORTED_TP | \
- SUPPORTED_MII)
- #define PHY_10BT_FEATURES (SUPPORTED_10baseT_Half | \
- SUPPORTED_10baseT_Full)
- #define PHY_100BT_FEATURES (SUPPORTED_100baseT_Half | \
- SUPPORTED_100baseT_Full)
- #define PHY_1000BT_FEATURES (SUPPORTED_1000baseT_Half | \
- SUPPORTED_1000baseT_Full)
- #define PHY_BASIC_FEATURES (PHY_10BT_FEATURES | \
- PHY_100BT_FEATURES | \
- PHY_DEFAULT_FEATURES)
- #define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \
- PHY_1000BT_FEATURES)
- #define PHY_10G_FEATURES (PHY_GBIT_FEATURES | \
- SUPPORTED_10000baseT_Full)
- #ifndef PHY_ANEG_TIMEOUT
- #define PHY_ANEG_TIMEOUT 4000
- #endif
- struct phy_device;
- #define MDIO_NAME_LEN 32
- struct mii_dev {
- struct list_head link;
- char name[MDIO_NAME_LEN];
- void *priv;
- int (*read)(struct mii_dev *bus, int addr, int devad, int reg);
- int (*write)(struct mii_dev *bus, int addr, int devad, int reg,
- u16 val);
- int (*reset)(struct mii_dev *bus);
- struct phy_device *phymap[PHY_MAX_ADDR];
- u32 phy_mask;
- };
- /* struct phy_driver: a structure which defines PHY behavior
- *
- * uid will contain a number which represents the PHY. During
- * startup, the driver will poll the PHY to find out what its
- * UID--as defined by registers 2 and 3--is. The 32-bit result
- * gotten from the PHY will be masked to
- * discard any bits which may change based on revision numbers
- * unimportant to functionality
- *
- */
- struct phy_driver {
- char *name;
- unsigned int uid;
- unsigned int mask;
- unsigned int mmds;
- u32 features;
- /* Called to do any driver startup necessities */
- /* Will be called during phy_connect */
- int (*probe)(struct phy_device *phydev);
- /* Called to configure the PHY, and modify the controller
- * based on the results. Should be called after phy_connect */
- int (*config)(struct phy_device *phydev);
- /* Called when starting up the controller */
- int (*startup)(struct phy_device *phydev);
- /* Called when bringing down the controller */
- int (*shutdown)(struct phy_device *phydev);
- int (*readext)(struct phy_device *phydev, int addr, int devad, int reg);
- int (*writeext)(struct phy_device *phydev, int addr, int devad, int reg,
- u16 val);
- /* Phy specific driver override for reading a MMD register */
- int (*read_mmd)(struct phy_device *phydev, int devad, int reg);
- /* Phy specific driver override for writing a MMD register */
- int (*write_mmd)(struct phy_device *phydev, int devad, int reg,
- u16 val);
- struct list_head list;
- /* driver private data */
- ulong data;
- };
- struct phy_device {
- /* Information about the PHY type */
- /* And management functions */
- struct mii_dev *bus;
- struct phy_driver *drv;
- void *priv;
- #ifdef CONFIG_DM_ETH
- struct udevice *dev;
- ofnode node;
- #else
- struct eth_device *dev;
- #endif
- /* forced speed & duplex (no autoneg)
- * partner speed & duplex & pause (autoneg)
- */
- int speed;
- int duplex;
- /* The most recently read link state */
- int link;
- int port;
- phy_interface_t interface;
- u32 advertising;
- u32 supported;
- u32 mmds;
- int autoneg;
- int addr;
- int pause;
- int asym_pause;
- u32 phy_id;
- bool is_c45;
- u32 flags;
- };
- struct fixed_link {
- int phy_id;
- int duplex;
- int link_speed;
- int pause;
- int asym_pause;
- };
- static inline int phy_read(struct phy_device *phydev, int devad, int regnum)
- {
- struct mii_dev *bus = phydev->bus;
- return bus->read(bus, phydev->addr, devad, regnum);
- }
- static inline int phy_write(struct phy_device *phydev, int devad, int regnum,
- u16 val)
- {
- struct mii_dev *bus = phydev->bus;
- return bus->write(bus, phydev->addr, devad, regnum, val);
- }
- static inline void phy_mmd_start_indirect(struct phy_device *phydev, int devad,
- int regnum)
- {
- /* Write the desired MMD Devad */
- phy_write(phydev, MDIO_DEVAD_NONE, MII_MMD_CTRL, devad);
- /* Write the desired MMD register address */
- phy_write(phydev, MDIO_DEVAD_NONE, MII_MMD_DATA, regnum);
- /* Select the Function : DATA with no post increment */
- phy_write(phydev, MDIO_DEVAD_NONE, MII_MMD_CTRL,
- (devad | MII_MMD_CTRL_NOINCR));
- }
- static inline int phy_read_mmd(struct phy_device *phydev, int devad,
- int regnum)
- {
- struct phy_driver *drv = phydev->drv;
- if (regnum > (u16)~0 || devad > 32)
- return -EINVAL;
- /* driver-specific access */
- if (drv->read_mmd)
- return drv->read_mmd(phydev, devad, regnum);
- /* direct C45 / C22 access */
- if ((drv->features & PHY_10G_FEATURES) == PHY_10G_FEATURES ||
- devad == MDIO_DEVAD_NONE || !devad)
- return phy_read(phydev, devad, regnum);
- /* indirect C22 access */
- phy_mmd_start_indirect(phydev, devad, regnum);
- /* Read the content of the MMD's selected register */
- return phy_read(phydev, MDIO_DEVAD_NONE, MII_MMD_DATA);
- }
- static inline int phy_write_mmd(struct phy_device *phydev, int devad,
- int regnum, u16 val)
- {
- struct phy_driver *drv = phydev->drv;
- if (regnum > (u16)~0 || devad > 32)
- return -EINVAL;
- /* driver-specific access */
- if (drv->write_mmd)
- return drv->write_mmd(phydev, devad, regnum, val);
- /* direct C45 / C22 access */
- if ((drv->features & PHY_10G_FEATURES) == PHY_10G_FEATURES ||
- devad == MDIO_DEVAD_NONE || !devad)
- return phy_write(phydev, devad, regnum, val);
- /* indirect C22 access */
- phy_mmd_start_indirect(phydev, devad, regnum);
- /* Write the data into MMD's selected register */
- return phy_write(phydev, MDIO_DEVAD_NONE, MII_MMD_DATA, val);
- }
- #ifdef CONFIG_PHYLIB_10G
- extern struct phy_driver gen10g_driver;
- /* For now, XGMII is the only 10G interface */
- static inline int is_10g_interface(phy_interface_t interface)
- {
- return interface == PHY_INTERFACE_MODE_XGMII;
- }
- #endif
- /**
- * phy_init() - Initializes the PHY drivers
- *
- * This function registers all available PHY drivers
- *
- * @return 0 if OK, -ve on error
- */
- int phy_init(void);
- /**
- * phy_reset() - Resets the specified PHY
- *
- * Issues a reset of the PHY and waits for it to complete
- *
- * @phydev: PHY to reset
- * @return 0 if OK, -ve on error
- */
- int phy_reset(struct phy_device *phydev);
- /**
- * phy_find_by_mask() - Searches for a PHY on the specified MDIO bus
- *
- * The function checks the PHY addresses flagged in phy_mask and returns a
- * phy_device pointer if it detects a PHY.
- * This function should only be called if just one PHY is expected to be present
- * in the set of addresses flagged in phy_mask. If multiple PHYs are present,
- * it is undefined which of these PHYs is returned.
- *
- * @bus: MII/MDIO bus to scan
- * @phy_mask: bitmap of PYH addresses to scan
- * @interface: type of MAC-PHY interface
- * @return pointer to phy_device if a PHY is found, or NULL otherwise
- */
- struct phy_device *phy_find_by_mask(struct mii_dev *bus, unsigned phy_mask,
- phy_interface_t interface);
- #ifdef CONFIG_DM_ETH
- /**
- * phy_connect_dev() - Associates the given pair of PHY and Ethernet devices
- * @phydev: PHY device
- * @dev: Ethernet device
- */
- void phy_connect_dev(struct phy_device *phydev, struct udevice *dev);
- /**
- * phy_connect() - Creates a PHY device for the Ethernet interface
- *
- * Creates a PHY device for the PHY at the given address, if one doesn't exist
- * already, and associates it with the Ethernet device.
- * The function may be called with addr <= 0, in this case addr value is ignored
- * and the bus is scanned to detect a PHY. Scanning should only be used if only
- * one PHY is expected to be present on the MDIO bus, otherwise it is undefined
- * which PHY is returned.
- *
- * @bus: MII/MDIO bus that hosts the PHY
- * @addr: PHY address on MDIO bus
- * @dev: Ethernet device to associate to the PHY
- * @interface: type of MAC-PHY interface
- * @return pointer to phy_device if a PHY is found, or NULL otherwise
- */
- struct phy_device *phy_connect(struct mii_dev *bus, int addr,
- struct udevice *dev,
- phy_interface_t interface);
- static inline ofnode phy_get_ofnode(struct phy_device *phydev)
- {
- if (ofnode_valid(phydev->node))
- return phydev->node;
- else
- return dev_ofnode(phydev->dev);
- }
- #else
- /**
- * phy_connect_dev() - Associates the given pair of PHY and Ethernet devices
- * @phydev: PHY device
- * @dev: Ethernet device
- */
- void phy_connect_dev(struct phy_device *phydev, struct eth_device *dev);
- /**
- * phy_connect() - Creates a PHY device for the Ethernet interface
- *
- * Creates a PHY device for the PHY at the given address, if one doesn't exist
- * already, and associates it with the Ethernet device.
- * The function may be called with addr <= 0, in this case addr value is ignored
- * and the bus is scanned to detect a PHY. Scanning should only be used if only
- * one PHY is expected to be present on the MDIO bus, otherwise it is undefined
- * which PHY is returned.
- *
- * @bus: MII/MDIO bus that hosts the PHY
- * @addr: PHY address on MDIO bus
- * @dev: Ethernet device to associate to the PHY
- * @interface: type of MAC-PHY interface
- * @return pointer to phy_device if a PHY is found, or NULL otherwise
- */
- struct phy_device *phy_connect(struct mii_dev *bus, int addr,
- struct eth_device *dev,
- phy_interface_t interface);
- static inline ofnode phy_get_ofnode(struct phy_device *phydev)
- {
- return ofnode_null();
- }
- #endif
- int phy_startup(struct phy_device *phydev);
- int phy_config(struct phy_device *phydev);
- int phy_shutdown(struct phy_device *phydev);
- int phy_register(struct phy_driver *drv);
- int phy_set_supported(struct phy_device *phydev, u32 max_speed);
- int genphy_config_aneg(struct phy_device *phydev);
- int genphy_restart_aneg(struct phy_device *phydev);
- int genphy_update_link(struct phy_device *phydev);
- int genphy_parse_link(struct phy_device *phydev);
- int genphy_config(struct phy_device *phydev);
- int genphy_startup(struct phy_device *phydev);
- int genphy_shutdown(struct phy_device *phydev);
- int gen10g_config(struct phy_device *phydev);
- int gen10g_startup(struct phy_device *phydev);
- int gen10g_shutdown(struct phy_device *phydev);
- int gen10g_discover_mmds(struct phy_device *phydev);
- int phy_b53_init(void);
- int phy_mv88e61xx_init(void);
- int phy_aquantia_init(void);
- int phy_atheros_init(void);
- int phy_broadcom_init(void);
- int phy_cortina_init(void);
- int phy_davicom_init(void);
- int phy_et1011c_init(void);
- int phy_lxt_init(void);
- int phy_marvell_init(void);
- int phy_micrel_ksz8xxx_init(void);
- int phy_micrel_ksz90x1_init(void);
- int phy_meson_gxl_init(void);
- int phy_natsemi_init(void);
- int phy_realtek_init(void);
- int phy_smsc_init(void);
- int phy_teranetics_init(void);
- int phy_ti_init(void);
- int phy_vitesse_init(void);
- int phy_xilinx_init(void);
- int phy_mscc_init(void);
- int phy_fixed_init(void);
- int phy_xilinx_gmii2rgmii_init(void);
- int board_phy_config(struct phy_device *phydev);
- int get_phy_id(struct mii_dev *bus, int addr, int devad, u32 *phy_id);
- /**
- * phy_get_interface_by_name() - Look up a PHY interface name
- *
- * @str: PHY interface name, e.g. "mii"
- * @return PHY_INTERFACE_MODE_... value, or -1 if not found
- */
- int phy_get_interface_by_name(const char *str);
- /**
- * phy_interface_is_rgmii - Convenience function for testing if a PHY interface
- * is RGMII (all variants)
- * @phydev: the phy_device struct
- */
- static inline bool phy_interface_is_rgmii(struct phy_device *phydev)
- {
- return phydev->interface >= PHY_INTERFACE_MODE_RGMII &&
- phydev->interface <= PHY_INTERFACE_MODE_RGMII_TXID;
- }
- /**
- * phy_interface_is_sgmii - Convenience function for testing if a PHY interface
- * is SGMII (all variants)
- * @phydev: the phy_device struct
- */
- static inline bool phy_interface_is_sgmii(struct phy_device *phydev)
- {
- return phydev->interface >= PHY_INTERFACE_MODE_SGMII &&
- phydev->interface <= PHY_INTERFACE_MODE_QSGMII;
- }
- /* PHY UIDs for various PHYs that are referenced in external code */
- #define PHY_UID_CS4340 0x13e51002
- #define PHY_UID_CS4223 0x03e57003
- #define PHY_UID_TN2020 0x00a19410
- #define PHY_UID_IN112525_S03 0x02107440
- #endif
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