1 /* 2 * Copyright 2011 Freescale Semiconductor, Inc. 3 * Andy Fleming <afleming@freescale.com> 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation; either version 2 of 8 * the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 18 * MA 02111-1307 USA 19 * 20 * This file pretty much stolen from Linux's mii.h/ethtool.h/phy.h 21 */ 22 23 #ifndef _PHY_H 24 #define _PHY_H 25 26 #include <linux/list.h> 27 #include <linux/mii.h> 28 #include <linux/ethtool.h> 29 #include <linux/mdio.h> 30 31 #define PHY_MAX_ADDR 32 32 33 #define PHY_BASIC_FEATURES (SUPPORTED_10baseT_Half | \ 34 SUPPORTED_10baseT_Full | \ 35 SUPPORTED_100baseT_Half | \ 36 SUPPORTED_100baseT_Full | \ 37 SUPPORTED_Autoneg | \ 38 SUPPORTED_TP | \ 39 SUPPORTED_MII) 40 41 #define PHY_GBIT_FEATURES (PHY_BASIC_FEATURES | \ 42 SUPPORTED_1000baseT_Half | \ 43 SUPPORTED_1000baseT_Full) 44 45 #define PHY_10G_FEATURES (PHY_GBIT_FEATURES | \ 46 SUPPORTED_10000baseT_Full) 47 48 #define PHY_ANEG_TIMEOUT 4000 49 50 51 typedef enum { 52 PHY_INTERFACE_MODE_MII, 53 PHY_INTERFACE_MODE_GMII, 54 PHY_INTERFACE_MODE_SGMII, 55 PHY_INTERFACE_MODE_TBI, 56 PHY_INTERFACE_MODE_RMII, 57 PHY_INTERFACE_MODE_RGMII, 58 PHY_INTERFACE_MODE_RGMII_ID, 59 PHY_INTERFACE_MODE_RGMII_RXID, 60 PHY_INTERFACE_MODE_RGMII_TXID, 61 PHY_INTERFACE_MODE_RTBI, 62 PHY_INTERFACE_MODE_XGMII, 63 PHY_INTERFACE_MODE_NONE /* Must be last */ 64 } phy_interface_t; 65 66 static const char *phy_interface_strings[] = { 67 [PHY_INTERFACE_MODE_MII] = "mii", 68 [PHY_INTERFACE_MODE_GMII] = "gmii", 69 [PHY_INTERFACE_MODE_SGMII] = "sgmii", 70 [PHY_INTERFACE_MODE_TBI] = "tbi", 71 [PHY_INTERFACE_MODE_RMII] = "rmii", 72 [PHY_INTERFACE_MODE_RGMII] = "rgmii", 73 [PHY_INTERFACE_MODE_RGMII_ID] = "rgmii-id", 74 [PHY_INTERFACE_MODE_RGMII_RXID] = "rgmii-rxid", 75 [PHY_INTERFACE_MODE_RGMII_TXID] = "rgmii-txid", 76 [PHY_INTERFACE_MODE_RTBI] = "rtbi", 77 [PHY_INTERFACE_MODE_XGMII] = "xgmii", 78 [PHY_INTERFACE_MODE_NONE] = "", 79 }; 80 81 static inline const char *phy_string_for_interface(phy_interface_t i) 82 { 83 /* Default to unknown */ 84 if (i > PHY_INTERFACE_MODE_NONE) 85 i = PHY_INTERFACE_MODE_NONE; 86 87 return phy_interface_strings[i]; 88 } 89 90 91 struct phy_device; 92 93 #define MDIO_NAME_LEN 32 94 95 struct mii_dev { 96 struct list_head link; 97 char name[MDIO_NAME_LEN]; 98 void *priv; 99 int (*read)(struct mii_dev *bus, int addr, int devad, int reg); 100 int (*write)(struct mii_dev *bus, int addr, int devad, int reg, 101 u16 val); 102 int (*reset)(struct mii_dev *bus); 103 struct phy_device *phymap[PHY_MAX_ADDR]; 104 u32 phy_mask; 105 }; 106 107 /* struct phy_driver: a structure which defines PHY behavior 108 * 109 * uid will contain a number which represents the PHY. During 110 * startup, the driver will poll the PHY to find out what its 111 * UID--as defined by registers 2 and 3--is. The 32-bit result 112 * gotten from the PHY will be masked to 113 * discard any bits which may change based on revision numbers 114 * unimportant to functionality 115 * 116 */ 117 struct phy_driver { 118 char *name; 119 unsigned int uid; 120 unsigned int mask; 121 unsigned int mmds; 122 123 u32 features; 124 125 /* Called to do any driver startup necessities */ 126 /* Will be called during phy_connect */ 127 int (*probe)(struct phy_device *phydev); 128 129 /* Called to configure the PHY, and modify the controller 130 * based on the results. Should be called after phy_connect */ 131 int (*config)(struct phy_device *phydev); 132 133 /* Called when starting up the controller */ 134 int (*startup)(struct phy_device *phydev); 135 136 /* Called when bringing down the controller */ 137 int (*shutdown)(struct phy_device *phydev); 138 139 struct list_head list; 140 }; 141 142 struct phy_device { 143 /* Information about the PHY type */ 144 /* And management functions */ 145 struct mii_dev *bus; 146 struct phy_driver *drv; 147 void *priv; 148 149 struct eth_device *dev; 150 151 /* forced speed & duplex (no autoneg) 152 * partner speed & duplex & pause (autoneg) 153 */ 154 int speed; 155 int duplex; 156 157 /* The most recently read link state */ 158 int link; 159 int port; 160 phy_interface_t interface; 161 162 u32 advertising; 163 u32 supported; 164 u32 mmds; 165 166 int autoneg; 167 int addr; 168 int pause; 169 int asym_pause; 170 u32 phy_id; 171 u32 flags; 172 }; 173 174 static inline int phy_read(struct phy_device *phydev, int devad, int regnum) 175 { 176 struct mii_dev *bus = phydev->bus; 177 178 return bus->read(bus, phydev->addr, devad, regnum); 179 } 180 181 static inline int phy_write(struct phy_device *phydev, int devad, int regnum, 182 u16 val) 183 { 184 struct mii_dev *bus = phydev->bus; 185 186 return bus->write(bus, phydev->addr, devad, regnum, val); 187 } 188 189 #ifdef CONFIG_PHYLIB_10G 190 extern struct phy_driver gen10g_driver; 191 192 /* For now, XGMII is the only 10G interface */ 193 static inline int is_10g_interface(phy_interface_t interface) 194 { 195 return interface == PHY_INTERFACE_MODE_XGMII; 196 } 197 198 #endif 199 200 int phy_init(void); 201 int phy_reset(struct phy_device *phydev); 202 struct phy_device *phy_connect(struct mii_dev *bus, int addr, 203 struct eth_device *dev, 204 phy_interface_t interface); 205 int phy_startup(struct phy_device *phydev); 206 int phy_config(struct phy_device *phydev); 207 int phy_shutdown(struct phy_device *phydev); 208 int phy_register(struct phy_driver *drv); 209 int genphy_config_aneg(struct phy_device *phydev); 210 int genphy_update_link(struct phy_device *phydev); 211 int genphy_config(struct phy_device *phydev); 212 int genphy_startup(struct phy_device *phydev); 213 int genphy_shutdown(struct phy_device *phydev); 214 int gen10g_config(struct phy_device *phydev); 215 int gen10g_startup(struct phy_device *phydev); 216 int gen10g_shutdown(struct phy_device *phydev); 217 int gen10g_discover_mmds(struct phy_device *phydev); 218 219 int phy_atheros_init(void); 220 int phy_broadcom_init(void); 221 int phy_davicom_init(void); 222 int phy_lxt_init(void); 223 int phy_marvell_init(void); 224 int phy_micrel_init(void); 225 int phy_natsemi_init(void); 226 int phy_realtek_init(void); 227 int phy_smsc_init(void); 228 int phy_teranetics_init(void); 229 int phy_vitesse_init(void); 230 231 /* PHY UIDs for various PHYs that are referenced in external code */ 232 #define PHY_UID_TN2020 0x00a19410 233 234 #endif 235