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 +----------------------------------------------------------------------------*/
17 #include <linux/mii.h>
18 #include <linux/list.h>
22 int miiphy_read(const char *devname, unsigned char addr, unsigned char reg,
23 unsigned short *value);
24 int miiphy_write(const char *devname, unsigned char addr, unsigned char reg,
25 unsigned short value);
26 int miiphy_info(const char *devname, unsigned char addr, unsigned int *oui,
27 unsigned char *model, unsigned char *rev);
28 int miiphy_reset(const char *devname, unsigned char addr);
29 int miiphy_speed(const char *devname, unsigned char addr);
30 int miiphy_duplex(const char *devname, unsigned char addr);
31 int miiphy_is_1000base_x(const char *devname, unsigned char addr);
32 #ifdef CONFIG_SYS_FAULT_ECHO_LINK_DOWN
33 int miiphy_link(const char *devname, unsigned char addr);
36 void miiphy_init(void);
38 int miiphy_set_current_dev(const char *devname);
39 const char *miiphy_get_current_dev(void);
40 struct mii_dev *mdio_get_current_dev(void);
41 struct list_head *mdio_get_list_head(void);
42 struct mii_dev *miiphy_get_dev_by_name(const char *devname);
43 struct phy_device *mdio_phydev_for_ethname(const char *devname);
45 void miiphy_listdev(void);
47 struct mii_dev *mdio_alloc(void);
48 void mdio_free(struct mii_dev *bus);
49 int mdio_register(struct mii_dev *bus);
52 * mdio_register_seq - Register mdio bus with sequence number
53 * @bus: mii device structure
54 * @seq: sequence number
56 * Return: 0 if success, negative value if error
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);
62 #ifdef CONFIG_BITBANGMII
64 #define BB_MII_DEVNAME "bb_miiphy"
66 struct bb_miiphy_bus {
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
80 extern struct bb_miiphy_bus bb_miiphy_buses[];
81 extern int bb_miiphy_buses_num;
84 * bb_miiphy_init() - Initialize bit-banged MII bus driver
86 * It is called during the generic post-relocation init sequence.
90 int bb_miiphy_init(void);
92 int bb_miiphy_read(struct mii_dev *miidev, int addr, int devad, int reg);
93 int bb_miiphy_write(struct mii_dev *miidev, int addr, int devad, int reg,
99 #define _1000BASET 1000
100 #define _100BASET 100
105 /* phy register offsets */
106 #define MII_MIPSCR 0x11
109 #define PHY_ANLPAR_PSB_802_3 0x0001
110 #define PHY_ANLPAR_PSB_802_9 0x0002
112 /* MII_CTRL1000 masks */
113 #define PHY_1000BTCR_1000FD 0x0200
114 #define PHY_1000BTCR_1000HD 0x0100
116 /* MII_STAT1000 masks */
117 #define PHY_1000BTSR_MSCF 0x8000
118 #define PHY_1000BTSR_MSCR 0x4000
119 #define PHY_1000BTSR_LRS 0x2000
120 #define PHY_1000BTSR_RRS 0x1000
121 #define PHY_1000BTSR_1000FD 0x0800
122 #define PHY_1000BTSR_1000HD 0x0400
125 #define ESTATUS_1000XF 0x8000
126 #define ESTATUS_1000XH 0x4000
129 * struct mdio_perdev_priv - Per-device class data for MDIO DM
131 * @mii_bus: Supporting MII legacy bus
133 struct mdio_perdev_priv {
134 struct mii_dev *mii_bus;
138 * struct mdio_ops - MDIO bus operations
140 * @read: Read from a PHY register
141 * @write: Write to a PHY register
142 * @reset: Reset the MDIO bus, NULL if not supported
145 int (*read)(struct udevice *mdio_dev, int addr, int devad, int reg);
146 int (*write)(struct udevice *mdio_dev, int addr, int devad, int reg,
148 int (*reset)(struct udevice *mdio_dev);
151 #define mdio_get_ops(dev) ((struct mdio_ops *)(dev)->driver->ops)
154 * dm_mdio_probe_devices - Call probe on all MII devices, currently used for
155 * MDIO console commands.
157 void dm_mdio_probe_devices(void);
160 * dm_mdio_read - Wrapper over .read() operation for DM MDIO
162 * @mdiodev: mdio device
163 * @addr: PHY address on MDIO bus
164 * @devad: device address on PHY if C45; should be MDIO_DEVAD_NONE if C22
165 * @reg: register address
166 * Return: register value if non-negative, -error code otherwise
168 int dm_mdio_read(struct udevice *mdio_dev, int addr, int devad, int reg);
171 * dm_mdio_write - Wrapper over .write() operation for DM MDIO
173 * @mdiodev: mdio device
174 * @addr: PHY address on MDIO bus
175 * @devad: device address on PHY if C45; should be MDIO_DEVAD_NONE if C22
176 * @reg: register address
177 * @val: value to write
178 * Return: 0 on success, -error code otherwise
180 int dm_mdio_write(struct udevice *mdio_dev, int addr, int devad, int reg, u16 val);
183 * dm_mdio_reset - Wrapper over .reset() operation for DM MDIO
185 * @mdiodev: mdio device
186 * Return: 0 on success, -error code otherwise
188 int dm_mdio_reset(struct udevice *mdio_dev);
191 * dm_phy_find_by_ofnode - Find PHY device by ofnode
193 * @phynode: PHY's ofnode
195 * Return: pointer to phy_device, or NULL on error
197 struct phy_device *dm_phy_find_by_ofnode(ofnode phynode);
200 * dm_mdio_phy_connect - Wrapper over phy_connect for DM MDIO
202 * @mdiodev: mdio device the PHY is accesible on
203 * @phyaddr: PHY address on MDIO bus
204 * @ethdev: ethernet device to connect to the PHY
205 * @interface: MAC-PHY protocol
207 * Return: pointer to phy_device, or 0 on error
209 struct phy_device *dm_mdio_phy_connect(struct udevice *mdiodev, int phyaddr,
210 struct udevice *ethdev,
211 phy_interface_t interface);
214 * dm_eth_phy_connect - Connect an Eth device to a PHY based on device tree
216 * Picks up the DT phy-handle and phy-mode from ethernet device node and
217 * connects the ethernet device to the linked PHY.
219 * @ethdev: ethernet device
221 * Return: pointer to phy_device, or 0 on error
223 struct phy_device *dm_eth_phy_connect(struct udevice *ethdev);
225 /* indicates none of the child buses is selected */
226 #define MDIO_MUX_SELECT_NONE -1
229 * struct mdio_mux_ops - MDIO MUX operations
231 * @select: Selects a child bus
232 * @deselect: Clean up selection. Optional, can be NULL
234 struct mdio_mux_ops {
235 int (*select)(struct udevice *mux, int cur, int sel);
236 int (*deselect)(struct udevice *mux, int sel);
239 #define mdio_mux_get_ops(dev) ((struct mdio_mux_ops *)(dev)->driver->ops)