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 /** 85 * bb_miiphy_init() - Initialize bit-banged MII bus driver 86 * 87 * It is called during the generic post-relocation init sequence. 88 * 89 * Return: 0 if OK 90 */ 91 int bb_miiphy_init(void); 92 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, 95 u16 value); 96 #endif 97 98 /* phy seed setup */ 99 #define AUTO 99 100 #define _1000BASET 1000 101 #define _100BASET 100 102 #define _10BASET 10 103 #define HALF 22 104 #define FULL 44 105 106 /* phy register offsets */ 107 #define MII_MIPSCR 0x11 108 109 /* MII_LPA */ 110 #define PHY_ANLPAR_PSB_802_3 0x0001 111 #define PHY_ANLPAR_PSB_802_9 0x0002 112 113 /* MII_CTRL1000 masks */ 114 #define PHY_1000BTCR_1000FD 0x0200 115 #define PHY_1000BTCR_1000HD 0x0100 116 117 /* 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 124 125 /* phy EXSR */ 126 #define ESTATUS_1000XF 0x8000 127 #define ESTATUS_1000XH 0x4000 128 129 #ifdef CONFIG_DM_MDIO 130 131 /** 132 * struct mdio_perdev_priv - Per-device class data for MDIO DM 133 * 134 * @mii_bus: Supporting MII legacy bus 135 */ 136 struct mdio_perdev_priv { 137 struct mii_dev *mii_bus; 138 }; 139 140 /** 141 * struct mdio_ops - MDIO bus operations 142 * 143 * @read: Read from a PHY register 144 * @write: Write to a PHY register 145 * @reset: Reset the MDIO bus, NULL if not supported 146 */ 147 struct mdio_ops { 148 int (*read)(struct udevice *mdio_dev, int addr, int devad, int reg); 149 int (*write)(struct udevice *mdio_dev, int addr, int devad, int reg, 150 u16 val); 151 int (*reset)(struct udevice *mdio_dev); 152 }; 153 154 #define mdio_get_ops(dev) ((struct mdio_ops *)(dev)->driver->ops) 155 156 /** 157 * dm_mdio_probe_devices - Call probe on all MII devices, currently used for 158 * MDIO console commands. 159 */ 160 void dm_mdio_probe_devices(void); 161 162 /** 163 * dm_mdio_phy_connect - Wrapper over phy_connect for DM MDIO 164 * 165 * @mdiodev: mdio device the PHY is accesible on 166 * @phyaddr: PHY address on MDIO bus 167 * @ethdev: ethernet device to connect to the PHY 168 * @interface: MAC-PHY protocol 169 * 170 * @return pointer to phy_device, or 0 on error 171 */ 172 struct phy_device *dm_mdio_phy_connect(struct udevice *mdiodev, int phyaddr, 173 struct udevice *ethdev, 174 phy_interface_t interface); 175 176 /** 177 * dm_eth_phy_connect - Connect an Eth device to a PHY based on device tree 178 * 179 * Picks up the DT phy-handle and phy-mode from ethernet device node and 180 * connects the ethernet device to the linked PHY. 181 * 182 * @ethdev: ethernet device 183 * 184 * @return pointer to phy_device, or 0 on error 185 */ 186 struct phy_device *dm_eth_phy_connect(struct udevice *ethdev); 187 188 #endif 189 190 #ifdef CONFIG_DM_MDIO_MUX 191 192 /* indicates none of the child buses is selected */ 193 #define MDIO_MUX_SELECT_NONE -1 194 195 /** 196 * struct mdio_mux_ops - MDIO MUX operations 197 * 198 * @select: Selects a child bus 199 * @deselect: Clean up selection. Optional, can be NULL 200 */ 201 struct mdio_mux_ops { 202 int (*select)(struct udevice *mux, int cur, int sel); 203 int (*deselect)(struct udevice *mux, int sel); 204 }; 205 206 #define mdio_mux_get_ops(dev) ((struct mdio_mux_ops *)(dev)->driver->ops) 207 208 #endif 209 210 #endif 211