summaryrefslogtreecommitdiff
path: root/include/miiphy.h
blob: 235ae066dddd7dfbbc23e2b1fca926477f85f45c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
/* SPDX-License-Identifier: GPL-2.0 OR IBM-pibs */
/*
 * Additions (C) Copyright 2009 Industrie Dial Face S.p.A.
 */
/*----------------------------------------------------------------------------+
|
|  File Name:	miiphy.h
|
|  Function:	Include file defining PHY registers.
|
|  Author:	Mark Wisner
|
+----------------------------------------------------------------------------*/
#ifndef _miiphy_h_
#define _miiphy_h_

#include <common.h>
#include <linux/mii.h>
#include <linux/list.h>
#include <net.h>
#include <phy.h>

int miiphy_read(const char *devname, unsigned char addr, unsigned char reg,
		 unsigned short *value);
int miiphy_write(const char *devname, unsigned char addr, unsigned char reg,
		  unsigned short value);
int miiphy_info(const char *devname, unsigned char addr, unsigned int *oui,
		 unsigned char *model, unsigned char *rev);
int miiphy_reset(const char *devname, unsigned char addr);
int miiphy_speed(const char *devname, unsigned char addr);
int miiphy_duplex(const char *devname, unsigned char addr);
int miiphy_is_1000base_x(const char *devname, unsigned char addr);
#ifdef CONFIG_SYS_FAULT_ECHO_LINK_DOWN
int miiphy_link(const char *devname, unsigned char addr);
#endif

void miiphy_init(void);

int miiphy_set_current_dev(const char *devname);
const char *miiphy_get_current_dev(void);
struct mii_dev *mdio_get_current_dev(void);
struct list_head *mdio_get_list_head(void);
struct mii_dev *miiphy_get_dev_by_name(const char *devname);
struct phy_device *mdio_phydev_for_ethname(const char *devname);

void miiphy_listdev(void);

struct mii_dev *mdio_alloc(void);
void mdio_free(struct mii_dev *bus);
int mdio_register(struct mii_dev *bus);

/**
 * mdio_register_seq - Register mdio bus with sequence number
 * @bus: mii device structure
 * @seq: sequence number
 *
 * Return: 0 if success, negative value if error
 */
int mdio_register_seq(struct mii_dev *bus, int seq);
int mdio_unregister(struct mii_dev *bus);
void mdio_list_devices(void);

#ifdef CONFIG_BITBANGMII

#define BB_MII_DEVNAME	"bb_miiphy"

struct bb_miiphy_bus {
	char name[16];
	int (*init)(struct bb_miiphy_bus *bus);
	int (*mdio_active)(struct bb_miiphy_bus *bus);
	int (*mdio_tristate)(struct bb_miiphy_bus *bus);
	int (*set_mdio)(struct bb_miiphy_bus *bus, int v);
	int (*get_mdio)(struct bb_miiphy_bus *bus, int *v);
	int (*set_mdc)(struct bb_miiphy_bus *bus, int v);
	int (*delay)(struct bb_miiphy_bus *bus);
#ifdef CONFIG_BITBANGMII_MULTI
	void *priv;
#endif
};

extern struct bb_miiphy_bus bb_miiphy_buses[];
extern int bb_miiphy_buses_num;

/**
 * bb_miiphy_init() - Initialize bit-banged MII bus driver
 *
 * It is called during the generic post-relocation init sequence.
 *
 * Return: 0 if OK
 */
int bb_miiphy_init(void);

int bb_miiphy_read(struct mii_dev *miidev, int addr, int devad, int reg);
int bb_miiphy_write(struct mii_dev *miidev, int addr, int devad, int reg,
		    u16 value);
#endif

/* phy seed setup */
#define AUTO			99
#define _1000BASET		1000
#define _100BASET		100
#define _10BASET		10
#define HALF			22
#define FULL			44

/* phy register offsets */
#define MII_MIPSCR		0x11

/* MII_LPA */
#define PHY_ANLPAR_PSB_802_3	0x0001
#define PHY_ANLPAR_PSB_802_9	0x0002

/* MII_CTRL1000 masks */
#define PHY_1000BTCR_1000FD	0x0200
#define PHY_1000BTCR_1000HD	0x0100

/* MII_STAT1000 masks */
#define PHY_1000BTSR_MSCF	0x8000
#define PHY_1000BTSR_MSCR	0x4000
#define PHY_1000BTSR_LRS	0x2000
#define PHY_1000BTSR_RRS	0x1000
#define PHY_1000BTSR_1000FD	0x0800
#define PHY_1000BTSR_1000HD	0x0400

/* phy EXSR */
#define ESTATUS_1000XF		0x8000
#define ESTATUS_1000XH		0x4000

/**
 * struct mdio_perdev_priv - Per-device class data for MDIO DM
 *
 * @mii_bus: Supporting MII legacy bus
 */
struct mdio_perdev_priv {
	struct mii_dev *mii_bus;
};

/**
 * struct mdio_ops - MDIO bus operations
 *
 * @read: Read from a PHY register
 * @write: Write to a PHY register
 * @reset: Reset the MDIO bus, NULL if not supported
 */
struct mdio_ops {
	int (*read)(struct udevice *mdio_dev, int addr, int devad, int reg);
	int (*write)(struct udevice *mdio_dev, int addr, int devad, int reg,
		     u16 val);
	int (*reset)(struct udevice *mdio_dev);
};

#define mdio_get_ops(dev) ((struct mdio_ops *)(dev)->driver->ops)

/**
 * dm_mdio_probe_devices - Call probe on all MII devices, currently used for
 * MDIO console commands.
 */
void dm_mdio_probe_devices(void);

/**
 * dm_mdio_phy_connect - Wrapper over phy_connect for DM MDIO
 *
 * @mdiodev: mdio device the PHY is accesible on
 * @phyaddr: PHY address on MDIO bus
 * @ethdev: ethernet device to connect to the PHY
 * @interface: MAC-PHY protocol
 *
 * Return: pointer to phy_device, or 0 on error
 */
struct phy_device *dm_mdio_phy_connect(struct udevice *mdiodev, int phyaddr,
				       struct udevice *ethdev,
				       phy_interface_t interface);

/**
 * dm_eth_phy_connect - Connect an Eth device to a PHY based on device tree
 *
 * Picks up the DT phy-handle and phy-mode from ethernet device node and
 * connects the ethernet device to the linked PHY.
 *
 * @ethdev: ethernet device
 *
 * Return: pointer to phy_device, or 0 on error
 */
struct phy_device *dm_eth_phy_connect(struct udevice *ethdev);

/* indicates none of the child buses is selected */
#define MDIO_MUX_SELECT_NONE	-1

/**
 * struct mdio_mux_ops - MDIO MUX operations
 *
 * @select: Selects a child bus
 * @deselect: Clean up selection.  Optional, can be NULL
 */
struct mdio_mux_ops {
	int (*select)(struct udevice *mux, int cur, int sel);
	int (*deselect)(struct udevice *mux, int sel);
};

#define mdio_mux_get_ops(dev) ((struct mdio_mux_ops *)(dev)->driver->ops)

#endif