1 /* SPDX-License-Identifier: GPL-2.0 OR IBM-pibs */
3 * Additions (C) Copyright 2009 Industrie Dial Face S.p.A.
5 /*----------------------------------------------------------------------------+
9 | Function: Include file defining PHY registers.
13 +----------------------------------------------------------------------------*/
18 #include <linux/mii.h>
19 #include <linux/list.h>
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);
37 void miiphy_init(void);
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 list_head *mdio_get_list_head(void);
43 struct mii_dev *miiphy_get_dev_by_name(const char *devname);
44 struct phy_device *mdio_phydev_for_ethname(const char *devname);
46 void miiphy_listdev(void);
48 struct mii_dev *mdio_alloc(void);
49 void mdio_free(struct mii_dev *bus);
50 int mdio_register(struct mii_dev *bus);
53 * mdio_register_seq - Register mdio bus with sequence number
54 * @bus: mii device structure
55 * @seq: sequence number
57 * Return: 0 if success, negative value if error
59 int mdio_register_seq(struct mii_dev *bus, int seq);
60 int mdio_unregister(struct mii_dev *bus);
61 void mdio_list_devices(void);
63 #ifdef CONFIG_BITBANGMII
65 #define BB_MII_DEVNAME "bb_miiphy"
67 struct bb_miiphy_bus {
69 int (*init)(struct bb_miiphy_bus *bus);
70 int (*mdio_active)(struct bb_miiphy_bus *bus);
71 int (*mdio_tristate)(struct bb_miiphy_bus *bus);
72 int (*set_mdio)(struct bb_miiphy_bus *bus, int v);
73 int (*get_mdio)(struct bb_miiphy_bus *bus, int *v);
74 int (*set_mdc)(struct bb_miiphy_bus *bus, int v);
75 int (*delay)(struct bb_miiphy_bus *bus);
76 #ifdef CONFIG_BITBANGMII_MULTI
81 extern struct bb_miiphy_bus bb_miiphy_buses[];
82 extern int bb_miiphy_buses_num;
85 * bb_miiphy_init() - Initialize bit-banged MII bus driver
87 * It is called during the generic post-relocation init sequence.
91 int bb_miiphy_init(void);
93 int bb_miiphy_read(struct mii_dev *miidev, int addr, int devad, int reg);
94 int bb_miiphy_write(struct mii_dev *miidev, int addr, int devad, int reg,
100 #define _1000BASET 1000
101 #define _100BASET 100
106 /* phy register offsets */
107 #define MII_MIPSCR 0x11
110 #define PHY_ANLPAR_PSB_802_3 0x0001
111 #define PHY_ANLPAR_PSB_802_9 0x0002
113 /* MII_CTRL1000 masks */
114 #define PHY_1000BTCR_1000FD 0x0200
115 #define PHY_1000BTCR_1000HD 0x0100
117 /* MII_STAT1000 masks */
118 #define PHY_1000BTSR_MSCF 0x8000
119 #define PHY_1000BTSR_MSCR 0x4000
120 #define PHY_1000BTSR_LRS 0x2000
121 #define PHY_1000BTSR_RRS 0x1000
122 #define PHY_1000BTSR_1000FD 0x0800
123 #define PHY_1000BTSR_1000HD 0x0400
126 #define ESTATUS_1000XF 0x8000
127 #define ESTATUS_1000XH 0x4000
130 * struct mdio_perdev_priv - Per-device class data for MDIO DM
132 * @mii_bus: Supporting MII legacy bus
134 struct mdio_perdev_priv {
135 struct mii_dev *mii_bus;
139 * struct mdio_ops - MDIO bus operations
141 * @read: Read from a PHY register
142 * @write: Write to a PHY register
143 * @reset: Reset the MDIO bus, NULL if not supported
146 int (*read)(struct udevice *mdio_dev, int addr, int devad, int reg);
147 int (*write)(struct udevice *mdio_dev, int addr, int devad, int reg,
149 int (*reset)(struct udevice *mdio_dev);
152 #define mdio_get_ops(dev) ((struct mdio_ops *)(dev)->driver->ops)
155 * dm_mdio_probe_devices - Call probe on all MII devices, currently used for
156 * MDIO console commands.
158 void dm_mdio_probe_devices(void);
161 * dm_mdio_read - Wrapper over .read() operation for DM MDIO
163 * @mdiodev: mdio device
164 * @addr: PHY address on MDIO bus
165 * @devad: device address on PHY if C45; should be MDIO_DEVAD_NONE if C22
166 * @reg: register address
167 * Return: register value if non-negative, -error code otherwise
169 int dm_mdio_read(struct udevice *mdio_dev, int addr, int devad, int reg);
172 * dm_mdio_write - Wrapper over .write() operation for DM MDIO
174 * @mdiodev: mdio device
175 * @addr: PHY address on MDIO bus
176 * @devad: device address on PHY if C45; should be MDIO_DEVAD_NONE if C22
177 * @reg: register address
178 * @val: value to write
179 * Return: 0 on success, -error code otherwise
181 int dm_mdio_write(struct udevice *mdio_dev, int addr, int devad, int reg, u16 val);
184 * dm_mdio_reset - Wrapper over .reset() operation for DM MDIO
186 * @mdiodev: mdio device
187 * Return: 0 on success, -error code otherwise
189 int dm_mdio_reset(struct udevice *mdio_dev);
192 * dm_phy_find_by_ofnode - Find PHY device by ofnode
194 * @phynode: PHY's ofnode
196 * Return: pointer to phy_device, or NULL on error
198 struct phy_device *dm_phy_find_by_ofnode(ofnode phynode);
201 * dm_mdio_phy_connect - Wrapper over phy_connect for DM MDIO
203 * @mdiodev: mdio device the PHY is accesible on
204 * @phyaddr: PHY address on MDIO bus
205 * @ethdev: ethernet device to connect to the PHY
206 * @interface: MAC-PHY protocol
208 * Return: pointer to phy_device, or 0 on error
210 struct phy_device *dm_mdio_phy_connect(struct udevice *mdiodev, int phyaddr,
211 struct udevice *ethdev,
212 phy_interface_t interface);
215 * dm_eth_phy_connect - Connect an Eth device to a PHY based on device tree
217 * Picks up the DT phy-handle and phy-mode from ethernet device node and
218 * connects the ethernet device to the linked PHY.
220 * @ethdev: ethernet device
222 * Return: pointer to phy_device, or 0 on error
224 struct phy_device *dm_eth_phy_connect(struct udevice *ethdev);
226 /* indicates none of the child buses is selected */
227 #define MDIO_MUX_SELECT_NONE -1
230 * struct mdio_mux_ops - MDIO MUX operations
232 * @select: Selects a child bus
233 * @deselect: Clean up selection. Optional, can be NULL
235 struct mdio_mux_ops {
236 int (*select)(struct udevice *mux, int cur, int sel);
237 int (*deselect)(struct udevice *mux, int sel);
240 #define mdio_mux_get_ops(dev) ((struct mdio_mux_ops *)(dev)->driver->ops)