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Andy Fleming5f184712011-04-08 02:10:27 -05001/*
2 * Copyright 2011 Freescale Semiconductor, Inc.
3 * Andy Fleming <afleming@freescale.com>
4 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02005 * SPDX-License-Identifier: GPL-2.0+
Andy Fleming5f184712011-04-08 02:10:27 -05006 *
7 * This file pretty much stolen from Linux's mii.h/ethtool.h/phy.h
8 */
9
10#ifndef _PHY_H
11#define _PHY_H
12
13#include <linux/list.h>
14#include <linux/mii.h>
15#include <linux/ethtool.h>
16#include <linux/mdio.h>
17
18#define PHY_MAX_ADDR 32
19
20#define PHY_BASIC_FEATURES (SUPPORTED_10baseT_Half | \
21 SUPPORTED_10baseT_Full | \
22 SUPPORTED_100baseT_Half | \
23 SUPPORTED_100baseT_Full | \
24 SUPPORTED_Autoneg | \
25 SUPPORTED_TP | \
26 SUPPORTED_MII)
27
28#define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \
29 SUPPORTED_1000baseT_Half | \
30 SUPPORTED_1000baseT_Full)
31
32#define PHY_10G_FEATURES (PHY_GBIT_FEATURES | \
33 SUPPORTED_10000baseT_Full)
34
35#define PHY_ANEG_TIMEOUT 4000
36
37
38typedef enum {
39 PHY_INTERFACE_MODE_MII,
40 PHY_INTERFACE_MODE_GMII,
41 PHY_INTERFACE_MODE_SGMII,
Shaohui Xie7794b1a2013-03-25 07:39:31 +000042 PHY_INTERFACE_MODE_QSGMII,
Andy Fleming5f184712011-04-08 02:10:27 -050043 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 */
52} phy_interface_t;
53
54static const char *phy_interface_strings[] = {
55 [PHY_INTERFACE_MODE_MII] = "mii",
56 [PHY_INTERFACE_MODE_GMII] = "gmii",
57 [PHY_INTERFACE_MODE_SGMII] = "sgmii",
Shaohui Xie7794b1a2013-03-25 07:39:31 +000058 [PHY_INTERFACE_MODE_QSGMII] = "qsgmii",
Andy Fleming5f184712011-04-08 02:10:27 -050059 [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] = "",
68};
69
70static inline const char *phy_string_for_interface(phy_interface_t i)
71{
72 /* Default to unknown */
73 if (i > PHY_INTERFACE_MODE_NONE)
74 i = PHY_INTERFACE_MODE_NONE;
75
76 return phy_interface_strings[i];
77}
78
79
80struct phy_device;
81
82#define MDIO_NAME_LEN 32
83
84struct mii_dev {
85 struct list_head link;
86 char name[MDIO_NAME_LEN];
87 void *priv;
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,
90 u16 val);
91 int (*reset)(struct mii_dev *bus);
92 struct phy_device *phymap[PHY_MAX_ADDR];
93 u32 phy_mask;
94};
95
96/* struct phy_driver: a structure which defines PHY behavior
97 *
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
104 *
105 */
106struct phy_driver {
107 char *name;
108 unsigned int uid;
109 unsigned int mask;
110 unsigned int mmds;
111
112 u32 features;
113
114 /* Called to do any driver startup necessities */
115 /* Will be called during phy_connect */
116 int (*probe)(struct phy_device *phydev);
117
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);
121
122 /* Called when starting up the controller */
123 int (*startup)(struct phy_device *phydev);
124
125 /* Called when bringing down the controller */
126 int (*shutdown)(struct phy_device *phydev);
127
Stefano Babicb71841b2013-09-02 15:42:30 +0200128 int (*readext)(struct phy_device *phydev, int addr, int devad, int reg);
129 int (*writeext)(struct phy_device *phydev, int addr, int devad, int reg,
130 u16 val);
Andy Fleming5f184712011-04-08 02:10:27 -0500131 struct list_head list;
132};
133
134struct phy_device {
135 /* Information about the PHY type */
136 /* And management functions */
137 struct mii_dev *bus;
138 struct phy_driver *drv;
139 void *priv;
140
141 struct eth_device *dev;
142
143 /* forced speed & duplex (no autoneg)
144 * partner speed & duplex & pause (autoneg)
145 */
146 int speed;
147 int duplex;
148
149 /* The most recently read link state */
150 int link;
151 int port;
152 phy_interface_t interface;
153
154 u32 advertising;
155 u32 supported;
156 u32 mmds;
157
158 int autoneg;
159 int addr;
160 int pause;
161 int asym_pause;
162 u32 phy_id;
163 u32 flags;
164};
165
Shaohui Xief55a7762013-11-14 19:00:31 +0800166struct fixed_link {
167 int phy_id;
168 int duplex;
169 int link_speed;
170 int pause;
171 int asym_pause;
172};
173
Andy Fleming5f184712011-04-08 02:10:27 -0500174static inline int phy_read(struct phy_device *phydev, int devad, int regnum)
175{
176 struct mii_dev *bus = phydev->bus;
177
178 return bus->read(bus, phydev->addr, devad, regnum);
179}
180
181static inline int phy_write(struct phy_device *phydev, int devad, int regnum,
182 u16 val)
183{
184 struct mii_dev *bus = phydev->bus;
185
186 return bus->write(bus, phydev->addr, devad, regnum, val);
187}
188
189#ifdef CONFIG_PHYLIB_10G
190extern struct phy_driver gen10g_driver;
191
192/* For now, XGMII is the only 10G interface */
193static inline int is_10g_interface(phy_interface_t interface)
194{
195 return interface == PHY_INTERFACE_MODE_XGMII;
196}
197
198#endif
199
200int phy_init(void);
201int phy_reset(struct phy_device *phydev);
Troy Kisky1adb4062012-10-22 16:40:43 +0000202struct phy_device *phy_find_by_mask(struct mii_dev *bus, unsigned phy_mask,
203 phy_interface_t interface);
204void phy_connect_dev(struct phy_device *phydev, struct eth_device *dev);
Andy Fleming5f184712011-04-08 02:10:27 -0500205struct phy_device *phy_connect(struct mii_dev *bus, int addr,
206 struct eth_device *dev,
207 phy_interface_t interface);
208int phy_startup(struct phy_device *phydev);
209int phy_config(struct phy_device *phydev);
210int phy_shutdown(struct phy_device *phydev);
211int phy_register(struct phy_driver *drv);
212int genphy_config_aneg(struct phy_device *phydev);
Troy Kisky8682aba2012-02-07 14:08:48 +0000213int genphy_restart_aneg(struct phy_device *phydev);
Andy Fleming5f184712011-04-08 02:10:27 -0500214int genphy_update_link(struct phy_device *phydev);
Yegor Yefremove2043f52012-11-28 11:15:17 +0100215int genphy_parse_link(struct phy_device *phydev);
Andy Fleming5f184712011-04-08 02:10:27 -0500216int genphy_config(struct phy_device *phydev);
217int genphy_startup(struct phy_device *phydev);
218int genphy_shutdown(struct phy_device *phydev);
219int gen10g_config(struct phy_device *phydev);
220int gen10g_startup(struct phy_device *phydev);
221int gen10g_shutdown(struct phy_device *phydev);
222int gen10g_discover_mmds(struct phy_device *phydev);
223
Andy Fleming9082eea2011-04-07 21:56:05 -0500224int phy_atheros_init(void);
225int phy_broadcom_init(void);
226int phy_davicom_init(void);
Matt Porterf485c8a2013-03-20 05:38:13 +0000227int phy_et1011c_init(void);
Andy Fleming9082eea2011-04-07 21:56:05 -0500228int phy_lxt_init(void);
229int phy_marvell_init(void);
230int phy_micrel_init(void);
231int phy_natsemi_init(void);
232int phy_realtek_init(void);
Vladimir Zapolskiyb6abf552011-12-29 15:18:37 +0000233int phy_smsc_init(void);
Andy Fleming9082eea2011-04-07 21:56:05 -0500234int phy_teranetics_init(void);
235int phy_vitesse_init(void);
Timur Tabia8366262011-10-18 18:44:34 -0500236
Fabio Estevam2fb63962014-02-15 14:52:00 -0200237int board_phy_config(struct phy_device *phydev);
238
Timur Tabia8366262011-10-18 18:44:34 -0500239/* PHY UIDs for various PHYs that are referenced in external code */
240#define PHY_UID_TN2020 0x00a19410
241
Andy Fleming5f184712011-04-08 02:10:27 -0500242#endif