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1 /* SPDX-License-Identifier: GPL-2.0 OR IBM-pibs */
2 /*
3  * Additions (C) Copyright 2009 Industrie Dial Face S.p.A.
4  */
5 /*----------------------------------------------------------------------------+
6 |
7 |  File Name:	miiphy.h
8 |
9 |  Function:	Include file defining PHY registers.
10 |
11 |  Author:	Mark Wisner
12 |
13 +----------------------------------------------------------------------------*/
14 #ifndef _miiphy_h_
15 #define _miiphy_h_
16 
17 #include <common.h>
18 #include <linux/mii.h>
19 #include <linux/list.h>
20 #include <net.h>
21 #include <phy.h>
22 
23 int miiphy_read(const char *devname, unsigned char addr, unsigned char reg,
24 		 unsigned short *value);
25 int miiphy_write(const char *devname, unsigned char addr, unsigned char reg,
26 		  unsigned short value);
27 int miiphy_info(const char *devname, unsigned char addr, unsigned int *oui,
28 		 unsigned char *model, unsigned char *rev);
29 int miiphy_reset(const char *devname, unsigned char addr);
30 int miiphy_speed(const char *devname, unsigned char addr);
31 int miiphy_duplex(const char *devname, unsigned char addr);
32 int miiphy_is_1000base_x(const char *devname, unsigned char addr);
33 #ifdef CONFIG_SYS_FAULT_ECHO_LINK_DOWN
34 int miiphy_link(const char *devname, unsigned char addr);
35 #endif
36 
37 void miiphy_init(void);
38 
39 int miiphy_set_current_dev(const char *devname);
40 const char *miiphy_get_current_dev(void);
41 struct mii_dev *mdio_get_current_dev(void);
42 struct mii_dev *miiphy_get_dev_by_name(const char *devname);
43 struct phy_device *mdio_phydev_for_ethname(const char *devname);
44 
45 void miiphy_listdev(void);
46 
47 struct mii_dev *mdio_alloc(void);
48 void mdio_free(struct mii_dev *bus);
49 int mdio_register(struct mii_dev *bus);
50 
51 /**
52  * mdio_register_seq - Register mdio bus with sequence number
53  * @bus: mii device structure
54  * @seq: sequence number
55  *
56  * Return: 0 if success, negative value if error
57  */
58 int mdio_register_seq(struct mii_dev *bus, int seq);
59 int mdio_unregister(struct mii_dev *bus);
60 void mdio_list_devices(void);
61 
62 #ifdef CONFIG_BITBANGMII
63 
64 #define BB_MII_DEVNAME	"bb_miiphy"
65 
66 struct bb_miiphy_bus {
67 	char name[16];
68 	int (*init)(struct bb_miiphy_bus *bus);
69 	int (*mdio_active)(struct bb_miiphy_bus *bus);
70 	int (*mdio_tristate)(struct bb_miiphy_bus *bus);
71 	int (*set_mdio)(struct bb_miiphy_bus *bus, int v);
72 	int (*get_mdio)(struct bb_miiphy_bus *bus, int *v);
73 	int (*set_mdc)(struct bb_miiphy_bus *bus, int v);
74 	int (*delay)(struct bb_miiphy_bus *bus);
75 #ifdef CONFIG_BITBANGMII_MULTI
76 	void *priv;
77 #endif
78 };
79 
80 extern struct bb_miiphy_bus bb_miiphy_buses[];
81 extern int bb_miiphy_buses_num;
82 
83 void bb_miiphy_init(void);
84 int bb_miiphy_read(struct mii_dev *miidev, int addr, int devad, int reg);
85 int bb_miiphy_write(struct mii_dev *miidev, int addr, int devad, int reg,
86 		    u16 value);
87 #endif
88 
89 /* phy seed setup */
90 #define AUTO			99
91 #define _1000BASET		1000
92 #define _100BASET		100
93 #define _10BASET		10
94 #define HALF			22
95 #define FULL			44
96 
97 /* phy register offsets */
98 #define MII_MIPSCR		0x11
99 
100 /* MII_LPA */
101 #define PHY_ANLPAR_PSB_802_3	0x0001
102 #define PHY_ANLPAR_PSB_802_9	0x0002
103 
104 /* MII_CTRL1000 masks */
105 #define PHY_1000BTCR_1000FD	0x0200
106 #define PHY_1000BTCR_1000HD	0x0100
107 
108 /* MII_STAT1000 masks */
109 #define PHY_1000BTSR_MSCF	0x8000
110 #define PHY_1000BTSR_MSCR	0x4000
111 #define PHY_1000BTSR_LRS	0x2000
112 #define PHY_1000BTSR_RRS	0x1000
113 #define PHY_1000BTSR_1000FD	0x0800
114 #define PHY_1000BTSR_1000HD	0x0400
115 
116 /* phy EXSR */
117 #define ESTATUS_1000XF		0x8000
118 #define ESTATUS_1000XH		0x4000
119 
120 #endif
121