2 * Copyright 2011 Freescale Semiconductor, Inc.
3 * Andy Fleming <afleming@freescale.com>
5 * SPDX-License-Identifier: GPL-2.0+
7 * This file pretty much stolen from Linux's mii.h/ethtool.h/phy.h
13 #include <linux/list.h>
14 #include <linux/mii.h>
15 #include <linux/ethtool.h>
16 #include <linux/mdio.h>
18 #define PHY_MAX_ADDR 32
20 #define PHY_BASIC_FEATURES (SUPPORTED_10baseT_Half | \
21 SUPPORTED_10baseT_Full | \
22 SUPPORTED_100baseT_Half | \
23 SUPPORTED_100baseT_Full | \
28 #define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \
29 SUPPORTED_1000baseT_Half | \
30 SUPPORTED_1000baseT_Full)
32 #define PHY_10G_FEATURES (PHY_GBIT_FEATURES | \
33 SUPPORTED_10000baseT_Full)
35 #define PHY_ANEG_TIMEOUT 4000
39 PHY_INTERFACE_MODE_MII,
40 PHY_INTERFACE_MODE_GMII,
41 PHY_INTERFACE_MODE_SGMII,
42 PHY_INTERFACE_MODE_QSGMII,
43 PHY_INTERFACE_MODE_TBI,
44 PHY_INTERFACE_MODE_RMII,
45 PHY_INTERFACE_MODE_RGMII,
46 PHY_INTERFACE_MODE_RGMII_ID,
47 PHY_INTERFACE_MODE_RGMII_RXID,
48 PHY_INTERFACE_MODE_RGMII_TXID,
49 PHY_INTERFACE_MODE_RTBI,
50 PHY_INTERFACE_MODE_XGMII,
51 PHY_INTERFACE_MODE_NONE /* Must be last */
54 static const char *phy_interface_strings[] = {
55 [PHY_INTERFACE_MODE_MII] = "mii",
56 [PHY_INTERFACE_MODE_GMII] = "gmii",
57 [PHY_INTERFACE_MODE_SGMII] = "sgmii",
58 [PHY_INTERFACE_MODE_QSGMII] = "qsgmii",
59 [PHY_INTERFACE_MODE_TBI] = "tbi",
60 [PHY_INTERFACE_MODE_RMII] = "rmii",
61 [PHY_INTERFACE_MODE_RGMII] = "rgmii",
62 [PHY_INTERFACE_MODE_RGMII_ID] = "rgmii-id",
63 [PHY_INTERFACE_MODE_RGMII_RXID] = "rgmii-rxid",
64 [PHY_INTERFACE_MODE_RGMII_TXID] = "rgmii-txid",
65 [PHY_INTERFACE_MODE_RTBI] = "rtbi",
66 [PHY_INTERFACE_MODE_XGMII] = "xgmii",
67 [PHY_INTERFACE_MODE_NONE] = "",
70 static inline const char *phy_string_for_interface(phy_interface_t i)
72 /* Default to unknown */
73 if (i > PHY_INTERFACE_MODE_NONE)
74 i = PHY_INTERFACE_MODE_NONE;
76 return phy_interface_strings[i];
82 #define MDIO_NAME_LEN 32
85 struct list_head link;
86 char name[MDIO_NAME_LEN];
88 int (*read)(struct mii_dev *bus, int addr, int devad, int reg);
89 int (*write)(struct mii_dev *bus, int addr, int devad, int reg,
91 int (*reset)(struct mii_dev *bus);
92 struct phy_device *phymap[PHY_MAX_ADDR];
96 /* struct phy_driver: a structure which defines PHY behavior
98 * uid will contain a number which represents the PHY. During
99 * startup, the driver will poll the PHY to find out what its
100 * UID--as defined by registers 2 and 3--is. The 32-bit result
101 * gotten from the PHY will be masked to
102 * discard any bits which may change based on revision numbers
103 * unimportant to functionality
114 /* Called to do any driver startup necessities */
115 /* Will be called during phy_connect */
116 int (*probe)(struct phy_device *phydev);
118 /* Called to configure the PHY, and modify the controller
119 * based on the results. Should be called after phy_connect */
120 int (*config)(struct phy_device *phydev);
122 /* Called when starting up the controller */
123 int (*startup)(struct phy_device *phydev);
125 /* Called when bringing down the controller */
126 int (*shutdown)(struct phy_device *phydev);
128 struct list_head list;
132 /* Information about the PHY type */
133 /* And management functions */
135 struct phy_driver *drv;
138 struct eth_device *dev;
140 /* forced speed & duplex (no autoneg)
141 * partner speed & duplex & pause (autoneg)
146 /* The most recently read link state */
149 phy_interface_t interface;
163 static inline int phy_read(struct phy_device *phydev, int devad, int regnum)
165 struct mii_dev *bus = phydev->bus;
167 return bus->read(bus, phydev->addr, devad, regnum);
170 static inline int phy_write(struct phy_device *phydev, int devad, int regnum,
173 struct mii_dev *bus = phydev->bus;
175 return bus->write(bus, phydev->addr, devad, regnum, val);
178 #ifdef CONFIG_PHYLIB_10G
179 extern struct phy_driver gen10g_driver;
181 /* For now, XGMII is the only 10G interface */
182 static inline int is_10g_interface(phy_interface_t interface)
184 return interface == PHY_INTERFACE_MODE_XGMII;
190 int phy_reset(struct phy_device *phydev);
191 struct phy_device *phy_find_by_mask(struct mii_dev *bus, unsigned phy_mask,
192 phy_interface_t interface);
193 void phy_connect_dev(struct phy_device *phydev, struct eth_device *dev);
194 struct phy_device *phy_connect(struct mii_dev *bus, int addr,
195 struct eth_device *dev,
196 phy_interface_t interface);
197 int phy_startup(struct phy_device *phydev);
198 int phy_config(struct phy_device *phydev);
199 int phy_shutdown(struct phy_device *phydev);
200 int phy_register(struct phy_driver *drv);
201 int genphy_config_aneg(struct phy_device *phydev);
202 int genphy_restart_aneg(struct phy_device *phydev);
203 int genphy_update_link(struct phy_device *phydev);
204 int genphy_parse_link(struct phy_device *phydev);
205 int genphy_config(struct phy_device *phydev);
206 int genphy_startup(struct phy_device *phydev);
207 int genphy_shutdown(struct phy_device *phydev);
208 int gen10g_config(struct phy_device *phydev);
209 int gen10g_startup(struct phy_device *phydev);
210 int gen10g_shutdown(struct phy_device *phydev);
211 int gen10g_discover_mmds(struct phy_device *phydev);
213 int phy_atheros_init(void);
214 int phy_broadcom_init(void);
215 int phy_davicom_init(void);
216 int phy_et1011c_init(void);
217 int phy_lxt_init(void);
218 int phy_marvell_init(void);
219 int phy_micrel_init(void);
220 int phy_natsemi_init(void);
221 int phy_realtek_init(void);
222 int phy_smsc_init(void);
223 int phy_teranetics_init(void);
224 int phy_vitesse_init(void);
226 /* PHY UIDs for various PHYs that are referenced in external code */
227 #define PHY_UID_TN2020 0x00a19410