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 203