include/miiphy.h

   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 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);
  45
  46 void miiphy_listdev(void);
  47
  48 struct mii_dev *mdio_alloc(void);
  49 void mdio_free(struct mii_dev *bus);
  50 int mdio_register(struct mii_dev *bus);
  51
  52 /**
  53  * mdio_register_seq - Register mdio bus with sequence number
  54  * @bus: mii device structure
  55  * @seq: sequence number
  56  *
  57  * Return: 0 if success, negative value if error
  58  */
  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);
  62
  63 #ifdef CONFIG_BITBANGMII
  64
  65 #define BB_MII_DEVNAME  "bb_miiphy"
  66
  67 struct bb_miiphy_bus {
  68         char name[16];
  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
  77         void *priv;
  78 #endif
  79 };
  80
  81 extern struct bb_miiphy_bus bb_miiphy_buses[];
  82 extern int bb_miiphy_buses_num;
  83
  84 void bb_miiphy_init(void);
  85 int bb_miiphy_read(struct mii_dev *miidev, int addr, int devad, int reg);
  86 int bb_miiphy_write(struct mii_dev *miidev, int addr, int devad, int reg,
  87                     u16 value);
  88 #endif
  89
  90 /* phy seed setup */
  91 #define AUTO                    99
  92 #define _1000BASET              1000
  93 #define _100BASET               100
  94 #define _10BASET                10
  95 #define HALF                    22
  96 #define FULL                    44
  97
  98 /* phy register offsets */
  99 #define MII_MIPSCR              0x11
 100
 101 /* MII_LPA */
 102 #define PHY_ANLPAR_PSB_802_3    0x0001
 103 #define PHY_ANLPAR_PSB_802_9    0x0002
 104
 105 /* MII_CTRL1000 masks */
 106 #define PHY_1000BTCR_1000FD     0x0200
 107 #define PHY_1000BTCR_1000HD     0x0100
 108
 109 /* MII_STAT1000 masks */
 110 #define PHY_1000BTSR_MSCF       0x8000
 111 #define PHY_1000BTSR_MSCR       0x4000
 112 #define PHY_1000BTSR_LRS        0x2000
 113 #define PHY_1000BTSR_RRS        0x1000
 114 #define PHY_1000BTSR_1000FD     0x0800
 115 #define PHY_1000BTSR_1000HD     0x0400
 116
 117 /* phy EXSR */
 118 #define ESTATUS_1000XF          0x8000
 119 #define ESTATUS_1000XH          0x4000
 120
 121 #ifdef CONFIG_DM_MDIO
 122
 123 /**
 124  * struct mdio_perdev_priv - Per-device class data for MDIO DM
 125  *
 126  * @mii_bus: Supporting MII legacy bus
 127  */
 128 struct mdio_perdev_priv {
 129         struct mii_dev *mii_bus;
 130 };
 131
 132 /**
 133  * struct mdio_ops - MDIO bus operations
 134  *
 135  * @read: Read from a PHY register
 136  * @write: Write to a PHY register
 137  * @reset: Reset the MDIO bus, NULL if not supported
 138  */
 139 struct mdio_ops {
 140         int (*read)(struct udevice *mdio_dev, int addr, int devad, int reg);
 141         int (*write)(struct udevice *mdio_dev, int addr, int devad, int reg,
 142                      u16 val);
 143         int (*reset)(struct udevice *mdio_dev);
 144 };
 145
 146 #define mdio_get_ops(dev) ((struct mdio_ops *)(dev)->driver->ops)
 147
 148 /**
 149  * dm_mdio_probe_devices - Call probe on all MII devices, currently used for
 150  * MDIO console commands.
 151  */
 152 void dm_mdio_probe_devices(void);
 153
 154 /**
 155  * dm_mdio_phy_connect - Wrapper over phy_connect for DM MDIO
 156  *
 157  * @mdiodev: mdio device the PHY is accesible on
 158  * @phyaddr: PHY address on MDIO bus
 159  * @ethdev: ethernet device to connect to the PHY
 160  * @interface: MAC-PHY protocol
 161  *
 162  * @return pointer to phy_device, or 0 on error
 163  */
 164 struct phy_device *dm_mdio_phy_connect(struct udevice *mdiodev, int phyaddr,
 165                                        struct udevice *ethdev,
 166                                        phy_interface_t interface);
 167
 168 /**
 169  * dm_eth_phy_connect - Connect an Eth device to a PHY based on device tree
 170  *
 171  * Picks up the DT phy-handle and phy-mode from ethernet device node and
 172  * connects the ethernet device to the linked PHY.
 173  *
 174  * @ethdev: ethernet device
 175  *
 176  * @return pointer to phy_device, or 0 on error
 177  */
 178 struct phy_device *dm_eth_phy_connect(struct udevice *ethdev);
 179
 180 #endif
 181
 182 #ifdef CONFIG_DM_MDIO_MUX
 183
 184 /* indicates none of the child buses is selected */
 185 #define MDIO_MUX_SELECT_NONE    -1
 186
 187 /**
 188  * struct mdio_mux_ops - MDIO MUX operations
 189  *
 190  * @select: Selects a child bus
 191  * @deselect: Clean up selection.  Optional, can be NULL
 192  */
 193 struct mdio_mux_ops {
 194         int (*select)(struct udevice *mux, int cur, int sel);
 195         int (*deselect)(struct udevice *mux, int sel);
 196 };
 197
 198 #define mdio_mux_get_ops(dev) ((struct mdio_mux_ops *)(dev)->driver->ops)
 199
 200 #endif
 201
 202 #endif