1 /* 2 * B53 common definitions 3 * 4 * Copyright (C) 2011-2013 Jonas Gorski <jogo@openwrt.org> 5 * 6 * Permission to use, copy, modify, and/or distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #ifndef __B53_PRIV_H 20 #define __B53_PRIV_H 21 22 #include <linux/kernel.h> 23 #include <linux/mutex.h> 24 #include <linux/phy.h> 25 #include <net/dsa.h> 26 27 #include "b53_regs.h" 28 29 struct b53_device; 30 struct net_device; 31 32 struct b53_io_ops { 33 int (*read8)(struct b53_device *dev, u8 page, u8 reg, u8 *value); 34 int (*read16)(struct b53_device *dev, u8 page, u8 reg, u16 *value); 35 int (*read32)(struct b53_device *dev, u8 page, u8 reg, u32 *value); 36 int (*read48)(struct b53_device *dev, u8 page, u8 reg, u64 *value); 37 int (*read64)(struct b53_device *dev, u8 page, u8 reg, u64 *value); 38 int (*write8)(struct b53_device *dev, u8 page, u8 reg, u8 value); 39 int (*write16)(struct b53_device *dev, u8 page, u8 reg, u16 value); 40 int (*write32)(struct b53_device *dev, u8 page, u8 reg, u32 value); 41 int (*write48)(struct b53_device *dev, u8 page, u8 reg, u64 value); 42 int (*write64)(struct b53_device *dev, u8 page, u8 reg, u64 value); 43 int (*phy_read16)(struct b53_device *dev, int addr, int reg, u16 *value); 44 int (*phy_write16)(struct b53_device *dev, int addr, int reg, u16 value); 45 }; 46 47 enum { 48 BCM5325_DEVICE_ID = 0x25, 49 BCM5365_DEVICE_ID = 0x65, 50 BCM5395_DEVICE_ID = 0x95, 51 BCM5397_DEVICE_ID = 0x97, 52 BCM5398_DEVICE_ID = 0x98, 53 BCM53115_DEVICE_ID = 0x53115, 54 BCM53125_DEVICE_ID = 0x53125, 55 BCM53128_DEVICE_ID = 0x53128, 56 BCM63XX_DEVICE_ID = 0x6300, 57 BCM53010_DEVICE_ID = 0x53010, 58 BCM53011_DEVICE_ID = 0x53011, 59 BCM53012_DEVICE_ID = 0x53012, 60 BCM53018_DEVICE_ID = 0x53018, 61 BCM53019_DEVICE_ID = 0x53019, 62 BCM58XX_DEVICE_ID = 0x5800, 63 BCM7445_DEVICE_ID = 0x7445, 64 }; 65 66 #define B53_N_PORTS 9 67 #define B53_N_PORTS_25 6 68 69 struct b53_port { 70 u16 vlan_ctl_mask; 71 struct net_device *bridge_dev; 72 }; 73 74 struct b53_vlan { 75 u16 members; 76 u16 untag; 77 bool valid; 78 }; 79 80 struct b53_device { 81 struct dsa_switch *ds; 82 struct b53_platform_data *pdata; 83 const char *name; 84 85 struct mutex reg_mutex; 86 struct mutex stats_mutex; 87 const struct b53_io_ops *ops; 88 89 /* chip specific data */ 90 u32 chip_id; 91 u8 core_rev; 92 u8 vta_regs[3]; 93 u8 duplex_reg; 94 u8 jumbo_pm_reg; 95 u8 jumbo_size_reg; 96 int reset_gpio; 97 u8 num_arl_entries; 98 99 /* used ports mask */ 100 u16 enabled_ports; 101 unsigned int cpu_port; 102 103 /* connect specific data */ 104 u8 current_page; 105 struct device *dev; 106 107 /* Master MDIO bus we got probed from */ 108 struct mii_bus *bus; 109 110 void *priv; 111 112 /* run time configuration */ 113 bool enable_jumbo; 114 115 unsigned int num_vlans; 116 struct b53_vlan *vlans; 117 unsigned int num_ports; 118 struct b53_port *ports; 119 }; 120 121 #define b53_for_each_port(dev, i) \ 122 for (i = 0; i < B53_N_PORTS; i++) \ 123 if (dev->enabled_ports & BIT(i)) 124 125 126 static inline int is5325(struct b53_device *dev) 127 { 128 return dev->chip_id == BCM5325_DEVICE_ID; 129 } 130 131 static inline int is5365(struct b53_device *dev) 132 { 133 #ifdef CONFIG_BCM47XX 134 return dev->chip_id == BCM5365_DEVICE_ID; 135 #else 136 return 0; 137 #endif 138 } 139 140 static inline int is5397_98(struct b53_device *dev) 141 { 142 return dev->chip_id == BCM5397_DEVICE_ID || 143 dev->chip_id == BCM5398_DEVICE_ID; 144 } 145 146 static inline int is539x(struct b53_device *dev) 147 { 148 return dev->chip_id == BCM5395_DEVICE_ID || 149 dev->chip_id == BCM5397_DEVICE_ID || 150 dev->chip_id == BCM5398_DEVICE_ID; 151 } 152 153 static inline int is531x5(struct b53_device *dev) 154 { 155 return dev->chip_id == BCM53115_DEVICE_ID || 156 dev->chip_id == BCM53125_DEVICE_ID || 157 dev->chip_id == BCM53128_DEVICE_ID; 158 } 159 160 static inline int is63xx(struct b53_device *dev) 161 { 162 #ifdef CONFIG_BCM63XX 163 return dev->chip_id == BCM63XX_DEVICE_ID; 164 #else 165 return 0; 166 #endif 167 } 168 169 static inline int is5301x(struct b53_device *dev) 170 { 171 return dev->chip_id == BCM53010_DEVICE_ID || 172 dev->chip_id == BCM53011_DEVICE_ID || 173 dev->chip_id == BCM53012_DEVICE_ID || 174 dev->chip_id == BCM53018_DEVICE_ID || 175 dev->chip_id == BCM53019_DEVICE_ID; 176 } 177 178 static inline int is58xx(struct b53_device *dev) 179 { 180 return dev->chip_id == BCM58XX_DEVICE_ID || 181 dev->chip_id == BCM7445_DEVICE_ID; 182 } 183 184 #define B53_CPU_PORT_25 5 185 #define B53_CPU_PORT 8 186 187 static inline int is_cpu_port(struct b53_device *dev, int port) 188 { 189 return dev->cpu_port; 190 } 191 192 struct b53_device *b53_switch_alloc(struct device *base, 193 const struct b53_io_ops *ops, 194 void *priv); 195 196 int b53_switch_detect(struct b53_device *dev); 197 198 int b53_switch_register(struct b53_device *dev); 199 200 static inline void b53_switch_remove(struct b53_device *dev) 201 { 202 dsa_unregister_switch(dev->ds); 203 } 204 205 static inline int b53_read8(struct b53_device *dev, u8 page, u8 reg, u8 *val) 206 { 207 int ret; 208 209 mutex_lock(&dev->reg_mutex); 210 ret = dev->ops->read8(dev, page, reg, val); 211 mutex_unlock(&dev->reg_mutex); 212 213 return ret; 214 } 215 216 static inline int b53_read16(struct b53_device *dev, u8 page, u8 reg, u16 *val) 217 { 218 int ret; 219 220 mutex_lock(&dev->reg_mutex); 221 ret = dev->ops->read16(dev, page, reg, val); 222 mutex_unlock(&dev->reg_mutex); 223 224 return ret; 225 } 226 227 static inline int b53_read32(struct b53_device *dev, u8 page, u8 reg, u32 *val) 228 { 229 int ret; 230 231 mutex_lock(&dev->reg_mutex); 232 ret = dev->ops->read32(dev, page, reg, val); 233 mutex_unlock(&dev->reg_mutex); 234 235 return ret; 236 } 237 238 static inline int b53_read48(struct b53_device *dev, u8 page, u8 reg, u64 *val) 239 { 240 int ret; 241 242 mutex_lock(&dev->reg_mutex); 243 ret = dev->ops->read48(dev, page, reg, val); 244 mutex_unlock(&dev->reg_mutex); 245 246 return ret; 247 } 248 249 static inline int b53_read64(struct b53_device *dev, u8 page, u8 reg, u64 *val) 250 { 251 int ret; 252 253 mutex_lock(&dev->reg_mutex); 254 ret = dev->ops->read64(dev, page, reg, val); 255 mutex_unlock(&dev->reg_mutex); 256 257 return ret; 258 } 259 260 static inline int b53_write8(struct b53_device *dev, u8 page, u8 reg, u8 value) 261 { 262 int ret; 263 264 mutex_lock(&dev->reg_mutex); 265 ret = dev->ops->write8(dev, page, reg, value); 266 mutex_unlock(&dev->reg_mutex); 267 268 return ret; 269 } 270 271 static inline int b53_write16(struct b53_device *dev, u8 page, u8 reg, 272 u16 value) 273 { 274 int ret; 275 276 mutex_lock(&dev->reg_mutex); 277 ret = dev->ops->write16(dev, page, reg, value); 278 mutex_unlock(&dev->reg_mutex); 279 280 return ret; 281 } 282 283 static inline int b53_write32(struct b53_device *dev, u8 page, u8 reg, 284 u32 value) 285 { 286 int ret; 287 288 mutex_lock(&dev->reg_mutex); 289 ret = dev->ops->write32(dev, page, reg, value); 290 mutex_unlock(&dev->reg_mutex); 291 292 return ret; 293 } 294 295 static inline int b53_write48(struct b53_device *dev, u8 page, u8 reg, 296 u64 value) 297 { 298 int ret; 299 300 mutex_lock(&dev->reg_mutex); 301 ret = dev->ops->write48(dev, page, reg, value); 302 mutex_unlock(&dev->reg_mutex); 303 304 return ret; 305 } 306 307 static inline int b53_write64(struct b53_device *dev, u8 page, u8 reg, 308 u64 value) 309 { 310 int ret; 311 312 mutex_lock(&dev->reg_mutex); 313 ret = dev->ops->write64(dev, page, reg, value); 314 mutex_unlock(&dev->reg_mutex); 315 316 return ret; 317 } 318 319 struct b53_arl_entry { 320 u8 port; 321 u8 mac[ETH_ALEN]; 322 u16 vid; 323 u8 is_valid:1; 324 u8 is_age:1; 325 u8 is_static:1; 326 }; 327 328 static inline void b53_mac_from_u64(u64 src, u8 *dst) 329 { 330 unsigned int i; 331 332 for (i = 0; i < ETH_ALEN; i++) 333 dst[ETH_ALEN - 1 - i] = (src >> (8 * i)) & 0xff; 334 } 335 336 static inline u64 b53_mac_to_u64(const u8 *src) 337 { 338 unsigned int i; 339 u64 dst = 0; 340 341 for (i = 0; i < ETH_ALEN; i++) 342 dst |= (u64)src[ETH_ALEN - 1 - i] << (8 * i); 343 344 return dst; 345 } 346 347 static inline void b53_arl_to_entry(struct b53_arl_entry *ent, 348 u64 mac_vid, u32 fwd_entry) 349 { 350 memset(ent, 0, sizeof(*ent)); 351 ent->port = fwd_entry & ARLTBL_DATA_PORT_ID_MASK; 352 ent->is_valid = !!(fwd_entry & ARLTBL_VALID); 353 ent->is_age = !!(fwd_entry & ARLTBL_AGE); 354 ent->is_static = !!(fwd_entry & ARLTBL_STATIC); 355 b53_mac_from_u64(mac_vid, ent->mac); 356 ent->vid = mac_vid >> ARLTBL_VID_S; 357 } 358 359 static inline void b53_arl_from_entry(u64 *mac_vid, u32 *fwd_entry, 360 const struct b53_arl_entry *ent) 361 { 362 *mac_vid = b53_mac_to_u64(ent->mac); 363 *mac_vid |= (u64)(ent->vid & ARLTBL_VID_MASK) << ARLTBL_VID_S; 364 *fwd_entry = ent->port & ARLTBL_DATA_PORT_ID_MASK; 365 if (ent->is_valid) 366 *fwd_entry |= ARLTBL_VALID; 367 if (ent->is_static) 368 *fwd_entry |= ARLTBL_STATIC; 369 if (ent->is_age) 370 *fwd_entry |= ARLTBL_AGE; 371 } 372 373 #ifdef CONFIG_BCM47XX 374 375 #include <linux/bcm47xx_nvram.h> 376 #include <bcm47xx_board.h> 377 static inline int b53_switch_get_reset_gpio(struct b53_device *dev) 378 { 379 enum bcm47xx_board board = bcm47xx_board_get(); 380 381 switch (board) { 382 case BCM47XX_BOARD_LINKSYS_WRT300NV11: 383 case BCM47XX_BOARD_LINKSYS_WRT310NV1: 384 return 8; 385 default: 386 return bcm47xx_nvram_gpio_pin("robo_reset"); 387 } 388 } 389 #else 390 static inline int b53_switch_get_reset_gpio(struct b53_device *dev) 391 { 392 return -ENOENT; 393 } 394 #endif 395 #endif 396