1 /* 2 * B53 switch driver main logic 3 * 4 * Copyright (C) 2011-2013 Jonas Gorski <[email protected]> 5 * Copyright (C) 2016 Florian Fainelli <[email protected]> 6 * 7 * Permission to use, copy, modify, and/or distribute this software for any 8 * purpose with or without fee is hereby granted, provided that the above 9 * copyright notice and this permission notice appear in all copies. 10 * 11 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 12 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 13 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 14 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 15 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 16 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 17 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #include <linux/delay.h> 21 #include <linux/export.h> 22 #include <linux/gpio.h> 23 #include <linux/kernel.h> 24 #include <linux/module.h> 25 #include <linux/platform_data/b53.h> 26 #include <linux/phy.h> 27 #include <linux/phylink.h> 28 #include <linux/etherdevice.h> 29 #include <linux/if_bridge.h> 30 #include <net/dsa.h> 31 32 #include "b53_regs.h" 33 #include "b53_priv.h" 34 35 struct b53_mib_desc { 36 u8 size; 37 u8 offset; 38 const char *name; 39 }; 40 41 /* BCM5365 MIB counters */ 42 static const struct b53_mib_desc b53_mibs_65[] = { 43 { 8, 0x00, "TxOctets" }, 44 { 4, 0x08, "TxDropPkts" }, 45 { 4, 0x10, "TxBroadcastPkts" }, 46 { 4, 0x14, "TxMulticastPkts" }, 47 { 4, 0x18, "TxUnicastPkts" }, 48 { 4, 0x1c, "TxCollisions" }, 49 { 4, 0x20, "TxSingleCollision" }, 50 { 4, 0x24, "TxMultipleCollision" }, 51 { 4, 0x28, "TxDeferredTransmit" }, 52 { 4, 0x2c, "TxLateCollision" }, 53 { 4, 0x30, "TxExcessiveCollision" }, 54 { 4, 0x38, "TxPausePkts" }, 55 { 8, 0x44, "RxOctets" }, 56 { 4, 0x4c, "RxUndersizePkts" }, 57 { 4, 0x50, "RxPausePkts" }, 58 { 4, 0x54, "Pkts64Octets" }, 59 { 4, 0x58, "Pkts65to127Octets" }, 60 { 4, 0x5c, "Pkts128to255Octets" }, 61 { 4, 0x60, "Pkts256to511Octets" }, 62 { 4, 0x64, "Pkts512to1023Octets" }, 63 { 4, 0x68, "Pkts1024to1522Octets" }, 64 { 4, 0x6c, "RxOversizePkts" }, 65 { 4, 0x70, "RxJabbers" }, 66 { 4, 0x74, "RxAlignmentErrors" }, 67 { 4, 0x78, "RxFCSErrors" }, 68 { 8, 0x7c, "RxGoodOctets" }, 69 { 4, 0x84, "RxDropPkts" }, 70 { 4, 0x88, "RxUnicastPkts" }, 71 { 4, 0x8c, "RxMulticastPkts" }, 72 { 4, 0x90, "RxBroadcastPkts" }, 73 { 4, 0x94, "RxSAChanges" }, 74 { 4, 0x98, "RxFragments" }, 75 }; 76 77 #define B53_MIBS_65_SIZE ARRAY_SIZE(b53_mibs_65) 78 79 /* BCM63xx MIB counters */ 80 static const struct b53_mib_desc b53_mibs_63xx[] = { 81 { 8, 0x00, "TxOctets" }, 82 { 4, 0x08, "TxDropPkts" }, 83 { 4, 0x0c, "TxQoSPkts" }, 84 { 4, 0x10, "TxBroadcastPkts" }, 85 { 4, 0x14, "TxMulticastPkts" }, 86 { 4, 0x18, "TxUnicastPkts" }, 87 { 4, 0x1c, "TxCollisions" }, 88 { 4, 0x20, "TxSingleCollision" }, 89 { 4, 0x24, "TxMultipleCollision" }, 90 { 4, 0x28, "TxDeferredTransmit" }, 91 { 4, 0x2c, "TxLateCollision" }, 92 { 4, 0x30, "TxExcessiveCollision" }, 93 { 4, 0x38, "TxPausePkts" }, 94 { 8, 0x3c, "TxQoSOctets" }, 95 { 8, 0x44, "RxOctets" }, 96 { 4, 0x4c, "RxUndersizePkts" }, 97 { 4, 0x50, "RxPausePkts" }, 98 { 4, 0x54, "Pkts64Octets" }, 99 { 4, 0x58, "Pkts65to127Octets" }, 100 { 4, 0x5c, "Pkts128to255Octets" }, 101 { 4, 0x60, "Pkts256to511Octets" }, 102 { 4, 0x64, "Pkts512to1023Octets" }, 103 { 4, 0x68, "Pkts1024to1522Octets" }, 104 { 4, 0x6c, "RxOversizePkts" }, 105 { 4, 0x70, "RxJabbers" }, 106 { 4, 0x74, "RxAlignmentErrors" }, 107 { 4, 0x78, "RxFCSErrors" }, 108 { 8, 0x7c, "RxGoodOctets" }, 109 { 4, 0x84, "RxDropPkts" }, 110 { 4, 0x88, "RxUnicastPkts" }, 111 { 4, 0x8c, "RxMulticastPkts" }, 112 { 4, 0x90, "RxBroadcastPkts" }, 113 { 4, 0x94, "RxSAChanges" }, 114 { 4, 0x98, "RxFragments" }, 115 { 4, 0xa0, "RxSymbolErrors" }, 116 { 4, 0xa4, "RxQoSPkts" }, 117 { 8, 0xa8, "RxQoSOctets" }, 118 { 4, 0xb0, "Pkts1523to2047Octets" }, 119 { 4, 0xb4, "Pkts2048to4095Octets" }, 120 { 4, 0xb8, "Pkts4096to8191Octets" }, 121 { 4, 0xbc, "Pkts8192to9728Octets" }, 122 { 4, 0xc0, "RxDiscarded" }, 123 }; 124 125 #define B53_MIBS_63XX_SIZE ARRAY_SIZE(b53_mibs_63xx) 126 127 /* MIB counters */ 128 static const struct b53_mib_desc b53_mibs[] = { 129 { 8, 0x00, "TxOctets" }, 130 { 4, 0x08, "TxDropPkts" }, 131 { 4, 0x10, "TxBroadcastPkts" }, 132 { 4, 0x14, "TxMulticastPkts" }, 133 { 4, 0x18, "TxUnicastPkts" }, 134 { 4, 0x1c, "TxCollisions" }, 135 { 4, 0x20, "TxSingleCollision" }, 136 { 4, 0x24, "TxMultipleCollision" }, 137 { 4, 0x28, "TxDeferredTransmit" }, 138 { 4, 0x2c, "TxLateCollision" }, 139 { 4, 0x30, "TxExcessiveCollision" }, 140 { 4, 0x38, "TxPausePkts" }, 141 { 8, 0x50, "RxOctets" }, 142 { 4, 0x58, "RxUndersizePkts" }, 143 { 4, 0x5c, "RxPausePkts" }, 144 { 4, 0x60, "Pkts64Octets" }, 145 { 4, 0x64, "Pkts65to127Octets" }, 146 { 4, 0x68, "Pkts128to255Octets" }, 147 { 4, 0x6c, "Pkts256to511Octets" }, 148 { 4, 0x70, "Pkts512to1023Octets" }, 149 { 4, 0x74, "Pkts1024to1522Octets" }, 150 { 4, 0x78, "RxOversizePkts" }, 151 { 4, 0x7c, "RxJabbers" }, 152 { 4, 0x80, "RxAlignmentErrors" }, 153 { 4, 0x84, "RxFCSErrors" }, 154 { 8, 0x88, "RxGoodOctets" }, 155 { 4, 0x90, "RxDropPkts" }, 156 { 4, 0x94, "RxUnicastPkts" }, 157 { 4, 0x98, "RxMulticastPkts" }, 158 { 4, 0x9c, "RxBroadcastPkts" }, 159 { 4, 0xa0, "RxSAChanges" }, 160 { 4, 0xa4, "RxFragments" }, 161 { 4, 0xa8, "RxJumboPkts" }, 162 { 4, 0xac, "RxSymbolErrors" }, 163 { 4, 0xc0, "RxDiscarded" }, 164 }; 165 166 #define B53_MIBS_SIZE ARRAY_SIZE(b53_mibs) 167 168 static const struct b53_mib_desc b53_mibs_58xx[] = { 169 { 8, 0x00, "TxOctets" }, 170 { 4, 0x08, "TxDropPkts" }, 171 { 4, 0x0c, "TxQPKTQ0" }, 172 { 4, 0x10, "TxBroadcastPkts" }, 173 { 4, 0x14, "TxMulticastPkts" }, 174 { 4, 0x18, "TxUnicastPKts" }, 175 { 4, 0x1c, "TxCollisions" }, 176 { 4, 0x20, "TxSingleCollision" }, 177 { 4, 0x24, "TxMultipleCollision" }, 178 { 4, 0x28, "TxDeferredCollision" }, 179 { 4, 0x2c, "TxLateCollision" }, 180 { 4, 0x30, "TxExcessiveCollision" }, 181 { 4, 0x34, "TxFrameInDisc" }, 182 { 4, 0x38, "TxPausePkts" }, 183 { 4, 0x3c, "TxQPKTQ1" }, 184 { 4, 0x40, "TxQPKTQ2" }, 185 { 4, 0x44, "TxQPKTQ3" }, 186 { 4, 0x48, "TxQPKTQ4" }, 187 { 4, 0x4c, "TxQPKTQ5" }, 188 { 8, 0x50, "RxOctets" }, 189 { 4, 0x58, "RxUndersizePkts" }, 190 { 4, 0x5c, "RxPausePkts" }, 191 { 4, 0x60, "RxPkts64Octets" }, 192 { 4, 0x64, "RxPkts65to127Octets" }, 193 { 4, 0x68, "RxPkts128to255Octets" }, 194 { 4, 0x6c, "RxPkts256to511Octets" }, 195 { 4, 0x70, "RxPkts512to1023Octets" }, 196 { 4, 0x74, "RxPkts1024toMaxPktsOctets" }, 197 { 4, 0x78, "RxOversizePkts" }, 198 { 4, 0x7c, "RxJabbers" }, 199 { 4, 0x80, "RxAlignmentErrors" }, 200 { 4, 0x84, "RxFCSErrors" }, 201 { 8, 0x88, "RxGoodOctets" }, 202 { 4, 0x90, "RxDropPkts" }, 203 { 4, 0x94, "RxUnicastPkts" }, 204 { 4, 0x98, "RxMulticastPkts" }, 205 { 4, 0x9c, "RxBroadcastPkts" }, 206 { 4, 0xa0, "RxSAChanges" }, 207 { 4, 0xa4, "RxFragments" }, 208 { 4, 0xa8, "RxJumboPkt" }, 209 { 4, 0xac, "RxSymblErr" }, 210 { 4, 0xb0, "InRangeErrCount" }, 211 { 4, 0xb4, "OutRangeErrCount" }, 212 { 4, 0xb8, "EEELpiEvent" }, 213 { 4, 0xbc, "EEELpiDuration" }, 214 { 4, 0xc0, "RxDiscard" }, 215 { 4, 0xc8, "TxQPKTQ6" }, 216 { 4, 0xcc, "TxQPKTQ7" }, 217 { 4, 0xd0, "TxPkts64Octets" }, 218 { 4, 0xd4, "TxPkts65to127Octets" }, 219 { 4, 0xd8, "TxPkts128to255Octets" }, 220 { 4, 0xdc, "TxPkts256to511Ocets" }, 221 { 4, 0xe0, "TxPkts512to1023Ocets" }, 222 { 4, 0xe4, "TxPkts1024toMaxPktOcets" }, 223 }; 224 225 #define B53_MIBS_58XX_SIZE ARRAY_SIZE(b53_mibs_58xx) 226 227 static int b53_do_vlan_op(struct b53_device *dev, u8 op) 228 { 229 unsigned int i; 230 231 b53_write8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], VTA_START_CMD | op); 232 233 for (i = 0; i < 10; i++) { 234 u8 vta; 235 236 b53_read8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], &vta); 237 if (!(vta & VTA_START_CMD)) 238 return 0; 239 240 usleep_range(100, 200); 241 } 242 243 return -EIO; 244 } 245 246 static void b53_set_vlan_entry(struct b53_device *dev, u16 vid, 247 struct b53_vlan *vlan) 248 { 249 if (is5325(dev)) { 250 u32 entry = 0; 251 252 if (vlan->members) { 253 entry = ((vlan->untag & VA_UNTAG_MASK_25) << 254 VA_UNTAG_S_25) | vlan->members; 255 if (dev->core_rev >= 3) 256 entry |= VA_VALID_25_R4 | vid << VA_VID_HIGH_S; 257 else 258 entry |= VA_VALID_25; 259 } 260 261 b53_write32(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_25, entry); 262 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, vid | 263 VTA_RW_STATE_WR | VTA_RW_OP_EN); 264 } else if (is5365(dev)) { 265 u16 entry = 0; 266 267 if (vlan->members) 268 entry = ((vlan->untag & VA_UNTAG_MASK_65) << 269 VA_UNTAG_S_65) | vlan->members | VA_VALID_65; 270 271 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_65, entry); 272 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_65, vid | 273 VTA_RW_STATE_WR | VTA_RW_OP_EN); 274 } else { 275 b53_write16(dev, B53_ARLIO_PAGE, dev->vta_regs[1], vid); 276 b53_write32(dev, B53_ARLIO_PAGE, dev->vta_regs[2], 277 (vlan->untag << VTE_UNTAG_S) | vlan->members); 278 279 b53_do_vlan_op(dev, VTA_CMD_WRITE); 280 } 281 282 dev_dbg(dev->ds->dev, "VID: %d, members: 0x%04x, untag: 0x%04x\n", 283 vid, vlan->members, vlan->untag); 284 } 285 286 static void b53_get_vlan_entry(struct b53_device *dev, u16 vid, 287 struct b53_vlan *vlan) 288 { 289 if (is5325(dev)) { 290 u32 entry = 0; 291 292 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, vid | 293 VTA_RW_STATE_RD | VTA_RW_OP_EN); 294 b53_read32(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_25, &entry); 295 296 if (dev->core_rev >= 3) 297 vlan->valid = !!(entry & VA_VALID_25_R4); 298 else 299 vlan->valid = !!(entry & VA_VALID_25); 300 vlan->members = entry & VA_MEMBER_MASK; 301 vlan->untag = (entry >> VA_UNTAG_S_25) & VA_UNTAG_MASK_25; 302 303 } else if (is5365(dev)) { 304 u16 entry = 0; 305 306 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_65, vid | 307 VTA_RW_STATE_WR | VTA_RW_OP_EN); 308 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_65, &entry); 309 310 vlan->valid = !!(entry & VA_VALID_65); 311 vlan->members = entry & VA_MEMBER_MASK; 312 vlan->untag = (entry >> VA_UNTAG_S_65) & VA_UNTAG_MASK_65; 313 } else { 314 u32 entry = 0; 315 316 b53_write16(dev, B53_ARLIO_PAGE, dev->vta_regs[1], vid); 317 b53_do_vlan_op(dev, VTA_CMD_READ); 318 b53_read32(dev, B53_ARLIO_PAGE, dev->vta_regs[2], &entry); 319 vlan->members = entry & VTE_MEMBERS; 320 vlan->untag = (entry >> VTE_UNTAG_S) & VTE_MEMBERS; 321 vlan->valid = true; 322 } 323 } 324 325 static void b53_set_forwarding(struct b53_device *dev, int enable) 326 { 327 u8 mgmt; 328 329 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); 330 331 if (enable) 332 mgmt |= SM_SW_FWD_EN; 333 else 334 mgmt &= ~SM_SW_FWD_EN; 335 336 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt); 337 338 /* Include IMP port in dumb forwarding mode 339 */ 340 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, &mgmt); 341 mgmt |= B53_MII_DUMB_FWDG_EN; 342 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, mgmt); 343 344 /* Look at B53_UC_FWD_EN and B53_MC_FWD_EN to decide whether 345 * frames should be flooded or not. 346 */ 347 b53_read8(dev, B53_CTRL_PAGE, B53_IP_MULTICAST_CTRL, &mgmt); 348 mgmt |= B53_UC_FWD_EN | B53_MC_FWD_EN | B53_IPMC_FWD_EN; 349 b53_write8(dev, B53_CTRL_PAGE, B53_IP_MULTICAST_CTRL, mgmt); 350 } 351 352 static void b53_enable_vlan(struct b53_device *dev, bool enable, 353 bool enable_filtering) 354 { 355 u8 mgmt, vc0, vc1, vc4 = 0, vc5; 356 357 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); 358 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, &vc0); 359 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, &vc1); 360 361 if (is5325(dev) || is5365(dev)) { 362 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4); 363 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, &vc5); 364 } else if (is63xx(dev)) { 365 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, &vc4); 366 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, &vc5); 367 } else { 368 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, &vc4); 369 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, &vc5); 370 } 371 372 if (enable) { 373 vc0 |= VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID; 374 vc1 |= VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN; 375 vc4 &= ~VC4_ING_VID_CHECK_MASK; 376 if (enable_filtering) { 377 vc4 |= VC4_ING_VID_VIO_DROP << VC4_ING_VID_CHECK_S; 378 vc5 |= VC5_DROP_VTABLE_MISS; 379 } else { 380 vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S; 381 vc5 &= ~VC5_DROP_VTABLE_MISS; 382 } 383 384 if (is5325(dev)) 385 vc0 &= ~VC0_RESERVED_1; 386 387 if (is5325(dev) || is5365(dev)) 388 vc1 |= VC1_RX_MCST_TAG_EN; 389 390 } else { 391 vc0 &= ~(VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID); 392 vc1 &= ~(VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN); 393 vc4 &= ~VC4_ING_VID_CHECK_MASK; 394 vc5 &= ~VC5_DROP_VTABLE_MISS; 395 396 if (is5325(dev) || is5365(dev)) 397 vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S; 398 else 399 vc4 |= VC4_ING_VID_VIO_TO_IMP << VC4_ING_VID_CHECK_S; 400 401 if (is5325(dev) || is5365(dev)) 402 vc1 &= ~VC1_RX_MCST_TAG_EN; 403 } 404 405 if (!is5325(dev) && !is5365(dev)) 406 vc5 &= ~VC5_VID_FFF_EN; 407 408 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, vc0); 409 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, vc1); 410 411 if (is5325(dev) || is5365(dev)) { 412 /* enable the high 8 bit vid check on 5325 */ 413 if (is5325(dev) && enable) 414 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 415 VC3_HIGH_8BIT_EN); 416 else 417 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0); 418 419 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, vc4); 420 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, vc5); 421 } else if (is63xx(dev)) { 422 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3_63XX, 0); 423 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, vc4); 424 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, vc5); 425 } else { 426 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0); 427 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, vc4); 428 b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, vc5); 429 } 430 431 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt); 432 433 dev->vlan_enabled = enable; 434 } 435 436 static int b53_set_jumbo(struct b53_device *dev, bool enable, bool allow_10_100) 437 { 438 u32 port_mask = 0; 439 u16 max_size = JMS_MIN_SIZE; 440 441 if (is5325(dev) || is5365(dev)) 442 return -EINVAL; 443 444 if (enable) { 445 port_mask = dev->enabled_ports; 446 max_size = JMS_MAX_SIZE; 447 if (allow_10_100) 448 port_mask |= JPM_10_100_JUMBO_EN; 449 } 450 451 b53_write32(dev, B53_JUMBO_PAGE, dev->jumbo_pm_reg, port_mask); 452 return b53_write16(dev, B53_JUMBO_PAGE, dev->jumbo_size_reg, max_size); 453 } 454 455 static int b53_flush_arl(struct b53_device *dev, u8 mask) 456 { 457 unsigned int i; 458 459 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, 460 FAST_AGE_DONE | FAST_AGE_DYNAMIC | mask); 461 462 for (i = 0; i < 10; i++) { 463 u8 fast_age_ctrl; 464 465 b53_read8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, 466 &fast_age_ctrl); 467 468 if (!(fast_age_ctrl & FAST_AGE_DONE)) 469 goto out; 470 471 msleep(1); 472 } 473 474 return -ETIMEDOUT; 475 out: 476 /* Only age dynamic entries (default behavior) */ 477 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, FAST_AGE_DYNAMIC); 478 return 0; 479 } 480 481 static int b53_fast_age_port(struct b53_device *dev, int port) 482 { 483 b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_PORT_CTRL, port); 484 485 return b53_flush_arl(dev, FAST_AGE_PORT); 486 } 487 488 static int b53_fast_age_vlan(struct b53_device *dev, u16 vid) 489 { 490 b53_write16(dev, B53_CTRL_PAGE, B53_FAST_AGE_VID_CTRL, vid); 491 492 return b53_flush_arl(dev, FAST_AGE_VLAN); 493 } 494 495 void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port) 496 { 497 struct b53_device *dev = ds->priv; 498 unsigned int i; 499 u16 pvlan; 500 501 /* Enable the IMP port to be in the same VLAN as the other ports 502 * on a per-port basis such that we only have Port i and IMP in 503 * the same VLAN. 504 */ 505 b53_for_each_port(dev, i) { 506 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), &pvlan); 507 pvlan |= BIT(cpu_port); 508 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), pvlan); 509 } 510 } 511 EXPORT_SYMBOL(b53_imp_vlan_setup); 512 513 int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy) 514 { 515 struct b53_device *dev = ds->priv; 516 unsigned int cpu_port; 517 int ret = 0; 518 u16 pvlan; 519 520 if (!dsa_is_user_port(ds, port)) 521 return 0; 522 523 cpu_port = dsa_to_port(ds, port)->cpu_dp->index; 524 525 b53_br_egress_floods(ds, port, true, true); 526 527 if (dev->ops->irq_enable) 528 ret = dev->ops->irq_enable(dev, port); 529 if (ret) 530 return ret; 531 532 /* Clear the Rx and Tx disable bits and set to no spanning tree */ 533 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), 0); 534 535 /* Set this port, and only this one to be in the default VLAN, 536 * if member of a bridge, restore its membership prior to 537 * bringing down this port. 538 */ 539 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan); 540 pvlan &= ~0x1ff; 541 pvlan |= BIT(port); 542 pvlan |= dev->ports[port].vlan_ctl_mask; 543 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan); 544 545 b53_imp_vlan_setup(ds, cpu_port); 546 547 /* If EEE was enabled, restore it */ 548 if (dev->ports[port].eee.eee_enabled) 549 b53_eee_enable_set(ds, port, true); 550 551 return 0; 552 } 553 EXPORT_SYMBOL(b53_enable_port); 554 555 void b53_disable_port(struct dsa_switch *ds, int port) 556 { 557 struct b53_device *dev = ds->priv; 558 u8 reg; 559 560 /* Disable Tx/Rx for the port */ 561 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®); 562 reg |= PORT_CTRL_RX_DISABLE | PORT_CTRL_TX_DISABLE; 563 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg); 564 565 if (dev->ops->irq_disable) 566 dev->ops->irq_disable(dev, port); 567 } 568 EXPORT_SYMBOL(b53_disable_port); 569 570 void b53_brcm_hdr_setup(struct dsa_switch *ds, int port) 571 { 572 struct b53_device *dev = ds->priv; 573 bool tag_en = !(dev->tag_protocol == DSA_TAG_PROTO_NONE); 574 u8 hdr_ctl, val; 575 u16 reg; 576 577 /* Resolve which bit controls the Broadcom tag */ 578 switch (port) { 579 case 8: 580 val = BRCM_HDR_P8_EN; 581 break; 582 case 7: 583 val = BRCM_HDR_P7_EN; 584 break; 585 case 5: 586 val = BRCM_HDR_P5_EN; 587 break; 588 default: 589 val = 0; 590 break; 591 } 592 593 /* Enable management mode if tagging is requested */ 594 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &hdr_ctl); 595 if (tag_en) 596 hdr_ctl |= SM_SW_FWD_MODE; 597 else 598 hdr_ctl &= ~SM_SW_FWD_MODE; 599 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, hdr_ctl); 600 601 /* Configure the appropriate IMP port */ 602 b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &hdr_ctl); 603 if (port == 8) 604 hdr_ctl |= GC_FRM_MGMT_PORT_MII; 605 else if (port == 5) 606 hdr_ctl |= GC_FRM_MGMT_PORT_M; 607 b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, hdr_ctl); 608 609 /* Enable Broadcom tags for IMP port */ 610 b53_read8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, &hdr_ctl); 611 if (tag_en) 612 hdr_ctl |= val; 613 else 614 hdr_ctl &= ~val; 615 b53_write8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, hdr_ctl); 616 617 /* Registers below are only accessible on newer devices */ 618 if (!is58xx(dev)) 619 return; 620 621 /* Enable reception Broadcom tag for CPU TX (switch RX) to 622 * allow us to tag outgoing frames 623 */ 624 b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, ®); 625 if (tag_en) 626 reg &= ~BIT(port); 627 else 628 reg |= BIT(port); 629 b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, reg); 630 631 /* Enable transmission of Broadcom tags from the switch (CPU RX) to 632 * allow delivering frames to the per-port net_devices 633 */ 634 b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, ®); 635 if (tag_en) 636 reg &= ~BIT(port); 637 else 638 reg |= BIT(port); 639 b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, reg); 640 } 641 EXPORT_SYMBOL(b53_brcm_hdr_setup); 642 643 static void b53_enable_cpu_port(struct b53_device *dev, int port) 644 { 645 u8 port_ctrl; 646 647 /* BCM5325 CPU port is at 8 */ 648 if ((is5325(dev) || is5365(dev)) && port == B53_CPU_PORT_25) 649 port = B53_CPU_PORT; 650 651 port_ctrl = PORT_CTRL_RX_BCST_EN | 652 PORT_CTRL_RX_MCST_EN | 653 PORT_CTRL_RX_UCST_EN; 654 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), port_ctrl); 655 656 b53_brcm_hdr_setup(dev->ds, port); 657 658 b53_br_egress_floods(dev->ds, port, true, true); 659 } 660 661 static void b53_enable_mib(struct b53_device *dev) 662 { 663 u8 gc; 664 665 b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc); 666 gc &= ~(GC_RESET_MIB | GC_MIB_AC_EN); 667 b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc); 668 } 669 670 static u16 b53_default_pvid(struct b53_device *dev) 671 { 672 if (is5325(dev) || is5365(dev)) 673 return 1; 674 else 675 return 0; 676 } 677 678 int b53_configure_vlan(struct dsa_switch *ds) 679 { 680 struct b53_device *dev = ds->priv; 681 struct b53_vlan vl = { 0 }; 682 struct b53_vlan *v; 683 int i, def_vid; 684 u16 vid; 685 686 def_vid = b53_default_pvid(dev); 687 688 /* clear all vlan entries */ 689 if (is5325(dev) || is5365(dev)) { 690 for (i = def_vid; i < dev->num_vlans; i++) 691 b53_set_vlan_entry(dev, i, &vl); 692 } else { 693 b53_do_vlan_op(dev, VTA_CMD_CLEAR); 694 } 695 696 b53_enable_vlan(dev, dev->vlan_enabled, ds->vlan_filtering); 697 698 b53_for_each_port(dev, i) 699 b53_write16(dev, B53_VLAN_PAGE, 700 B53_VLAN_PORT_DEF_TAG(i), def_vid); 701 702 /* Upon initial call we have not set-up any VLANs, but upon 703 * system resume, we need to restore all VLAN entries. 704 */ 705 for (vid = def_vid; vid < dev->num_vlans; vid++) { 706 v = &dev->vlans[vid]; 707 708 if (!v->members) 709 continue; 710 711 b53_set_vlan_entry(dev, vid, v); 712 b53_fast_age_vlan(dev, vid); 713 } 714 715 return 0; 716 } 717 EXPORT_SYMBOL(b53_configure_vlan); 718 719 static void b53_switch_reset_gpio(struct b53_device *dev) 720 { 721 int gpio = dev->reset_gpio; 722 723 if (gpio < 0) 724 return; 725 726 /* Reset sequence: RESET low(50ms)->high(20ms) 727 */ 728 gpio_set_value(gpio, 0); 729 mdelay(50); 730 731 gpio_set_value(gpio, 1); 732 mdelay(20); 733 734 dev->current_page = 0xff; 735 } 736 737 static int b53_switch_reset(struct b53_device *dev) 738 { 739 unsigned int timeout = 1000; 740 u8 mgmt, reg; 741 742 b53_switch_reset_gpio(dev); 743 744 if (is539x(dev)) { 745 b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x83); 746 b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x00); 747 } 748 749 /* This is specific to 58xx devices here, do not use is58xx() which 750 * covers the larger Starfigther 2 family, including 7445/7278 which 751 * still use this driver as a library and need to perform the reset 752 * earlier. 753 */ 754 if (dev->chip_id == BCM58XX_DEVICE_ID || 755 dev->chip_id == BCM583XX_DEVICE_ID) { 756 b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®); 757 reg |= SW_RST | EN_SW_RST | EN_CH_RST; 758 b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, reg); 759 760 do { 761 b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®); 762 if (!(reg & SW_RST)) 763 break; 764 765 usleep_range(1000, 2000); 766 } while (timeout-- > 0); 767 768 if (timeout == 0) { 769 dev_err(dev->dev, 770 "Timeout waiting for SW_RST to clear!\n"); 771 return -ETIMEDOUT; 772 } 773 } 774 775 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); 776 777 if (!(mgmt & SM_SW_FWD_EN)) { 778 mgmt &= ~SM_SW_FWD_MODE; 779 mgmt |= SM_SW_FWD_EN; 780 781 b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt); 782 b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); 783 784 if (!(mgmt & SM_SW_FWD_EN)) { 785 dev_err(dev->dev, "Failed to enable switch!\n"); 786 return -EINVAL; 787 } 788 } 789 790 b53_enable_mib(dev); 791 792 return b53_flush_arl(dev, FAST_AGE_STATIC); 793 } 794 795 static int b53_phy_read16(struct dsa_switch *ds, int addr, int reg) 796 { 797 struct b53_device *priv = ds->priv; 798 u16 value = 0; 799 int ret; 800 801 if (priv->ops->phy_read16) 802 ret = priv->ops->phy_read16(priv, addr, reg, &value); 803 else 804 ret = b53_read16(priv, B53_PORT_MII_PAGE(addr), 805 reg * 2, &value); 806 807 return ret ? ret : value; 808 } 809 810 static int b53_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val) 811 { 812 struct b53_device *priv = ds->priv; 813 814 if (priv->ops->phy_write16) 815 return priv->ops->phy_write16(priv, addr, reg, val); 816 817 return b53_write16(priv, B53_PORT_MII_PAGE(addr), reg * 2, val); 818 } 819 820 static int b53_reset_switch(struct b53_device *priv) 821 { 822 /* reset vlans */ 823 memset(priv->vlans, 0, sizeof(*priv->vlans) * priv->num_vlans); 824 memset(priv->ports, 0, sizeof(*priv->ports) * priv->num_ports); 825 826 priv->serdes_lane = B53_INVALID_LANE; 827 828 return b53_switch_reset(priv); 829 } 830 831 static int b53_apply_config(struct b53_device *priv) 832 { 833 /* disable switching */ 834 b53_set_forwarding(priv, 0); 835 836 b53_configure_vlan(priv->ds); 837 838 /* enable switching */ 839 b53_set_forwarding(priv, 1); 840 841 return 0; 842 } 843 844 static void b53_reset_mib(struct b53_device *priv) 845 { 846 u8 gc; 847 848 b53_read8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc); 849 850 b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc | GC_RESET_MIB); 851 msleep(1); 852 b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc & ~GC_RESET_MIB); 853 msleep(1); 854 } 855 856 static const struct b53_mib_desc *b53_get_mib(struct b53_device *dev) 857 { 858 if (is5365(dev)) 859 return b53_mibs_65; 860 else if (is63xx(dev)) 861 return b53_mibs_63xx; 862 else if (is58xx(dev)) 863 return b53_mibs_58xx; 864 else 865 return b53_mibs; 866 } 867 868 static unsigned int b53_get_mib_size(struct b53_device *dev) 869 { 870 if (is5365(dev)) 871 return B53_MIBS_65_SIZE; 872 else if (is63xx(dev)) 873 return B53_MIBS_63XX_SIZE; 874 else if (is58xx(dev)) 875 return B53_MIBS_58XX_SIZE; 876 else 877 return B53_MIBS_SIZE; 878 } 879 880 static struct phy_device *b53_get_phy_device(struct dsa_switch *ds, int port) 881 { 882 /* These ports typically do not have built-in PHYs */ 883 switch (port) { 884 case B53_CPU_PORT_25: 885 case 7: 886 case B53_CPU_PORT: 887 return NULL; 888 } 889 890 return mdiobus_get_phy(ds->slave_mii_bus, port); 891 } 892 893 void b53_get_strings(struct dsa_switch *ds, int port, u32 stringset, 894 uint8_t *data) 895 { 896 struct b53_device *dev = ds->priv; 897 const struct b53_mib_desc *mibs = b53_get_mib(dev); 898 unsigned int mib_size = b53_get_mib_size(dev); 899 struct phy_device *phydev; 900 unsigned int i; 901 902 if (stringset == ETH_SS_STATS) { 903 for (i = 0; i < mib_size; i++) 904 strlcpy(data + i * ETH_GSTRING_LEN, 905 mibs[i].name, ETH_GSTRING_LEN); 906 } else if (stringset == ETH_SS_PHY_STATS) { 907 phydev = b53_get_phy_device(ds, port); 908 if (!phydev) 909 return; 910 911 phy_ethtool_get_strings(phydev, data); 912 } 913 } 914 EXPORT_SYMBOL(b53_get_strings); 915 916 void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data) 917 { 918 struct b53_device *dev = ds->priv; 919 const struct b53_mib_desc *mibs = b53_get_mib(dev); 920 unsigned int mib_size = b53_get_mib_size(dev); 921 const struct b53_mib_desc *s; 922 unsigned int i; 923 u64 val = 0; 924 925 if (is5365(dev) && port == 5) 926 port = 8; 927 928 mutex_lock(&dev->stats_mutex); 929 930 for (i = 0; i < mib_size; i++) { 931 s = &mibs[i]; 932 933 if (s->size == 8) { 934 b53_read64(dev, B53_MIB_PAGE(port), s->offset, &val); 935 } else { 936 u32 val32; 937 938 b53_read32(dev, B53_MIB_PAGE(port), s->offset, 939 &val32); 940 val = val32; 941 } 942 data[i] = (u64)val; 943 } 944 945 mutex_unlock(&dev->stats_mutex); 946 } 947 EXPORT_SYMBOL(b53_get_ethtool_stats); 948 949 void b53_get_ethtool_phy_stats(struct dsa_switch *ds, int port, uint64_t *data) 950 { 951 struct phy_device *phydev; 952 953 phydev = b53_get_phy_device(ds, port); 954 if (!phydev) 955 return; 956 957 phy_ethtool_get_stats(phydev, NULL, data); 958 } 959 EXPORT_SYMBOL(b53_get_ethtool_phy_stats); 960 961 int b53_get_sset_count(struct dsa_switch *ds, int port, int sset) 962 { 963 struct b53_device *dev = ds->priv; 964 struct phy_device *phydev; 965 966 if (sset == ETH_SS_STATS) { 967 return b53_get_mib_size(dev); 968 } else if (sset == ETH_SS_PHY_STATS) { 969 phydev = b53_get_phy_device(ds, port); 970 if (!phydev) 971 return 0; 972 973 return phy_ethtool_get_sset_count(phydev); 974 } 975 976 return 0; 977 } 978 EXPORT_SYMBOL(b53_get_sset_count); 979 980 enum b53_devlink_resource_id { 981 B53_DEVLINK_PARAM_ID_VLAN_TABLE, 982 }; 983 984 static u64 b53_devlink_vlan_table_get(void *priv) 985 { 986 struct b53_device *dev = priv; 987 struct b53_vlan *vl; 988 unsigned int i; 989 u64 count = 0; 990 991 for (i = 0; i < dev->num_vlans; i++) { 992 vl = &dev->vlans[i]; 993 if (vl->members) 994 count++; 995 } 996 997 return count; 998 } 999 1000 int b53_setup_devlink_resources(struct dsa_switch *ds) 1001 { 1002 struct devlink_resource_size_params size_params; 1003 struct b53_device *dev = ds->priv; 1004 int err; 1005 1006 devlink_resource_size_params_init(&size_params, dev->num_vlans, 1007 dev->num_vlans, 1008 1, DEVLINK_RESOURCE_UNIT_ENTRY); 1009 1010 err = dsa_devlink_resource_register(ds, "VLAN", dev->num_vlans, 1011 B53_DEVLINK_PARAM_ID_VLAN_TABLE, 1012 DEVLINK_RESOURCE_ID_PARENT_TOP, 1013 &size_params); 1014 if (err) 1015 goto out; 1016 1017 dsa_devlink_resource_occ_get_register(ds, 1018 B53_DEVLINK_PARAM_ID_VLAN_TABLE, 1019 b53_devlink_vlan_table_get, dev); 1020 1021 return 0; 1022 out: 1023 dsa_devlink_resources_unregister(ds); 1024 return err; 1025 } 1026 EXPORT_SYMBOL(b53_setup_devlink_resources); 1027 1028 static int b53_setup(struct dsa_switch *ds) 1029 { 1030 struct b53_device *dev = ds->priv; 1031 unsigned int port; 1032 int ret; 1033 1034 ret = b53_reset_switch(dev); 1035 if (ret) { 1036 dev_err(ds->dev, "failed to reset switch\n"); 1037 return ret; 1038 } 1039 1040 b53_reset_mib(dev); 1041 1042 ret = b53_apply_config(dev); 1043 if (ret) { 1044 dev_err(ds->dev, "failed to apply configuration\n"); 1045 return ret; 1046 } 1047 1048 /* Configure IMP/CPU port, disable all other ports. Enabled 1049 * ports will be configured with .port_enable 1050 */ 1051 for (port = 0; port < dev->num_ports; port++) { 1052 if (dsa_is_cpu_port(ds, port)) 1053 b53_enable_cpu_port(dev, port); 1054 else 1055 b53_disable_port(ds, port); 1056 } 1057 1058 /* Let DSA handle the case were multiple bridges span the same switch 1059 * device and different VLAN awareness settings are requested, which 1060 * would be breaking filtering semantics for any of the other bridge 1061 * devices. (not hardware supported) 1062 */ 1063 ds->vlan_filtering_is_global = true; 1064 1065 return b53_setup_devlink_resources(ds); 1066 } 1067 1068 static void b53_teardown(struct dsa_switch *ds) 1069 { 1070 dsa_devlink_resources_unregister(ds); 1071 } 1072 1073 static void b53_force_link(struct b53_device *dev, int port, int link) 1074 { 1075 u8 reg, val, off; 1076 1077 /* Override the port settings */ 1078 if (port == dev->cpu_port) { 1079 off = B53_PORT_OVERRIDE_CTRL; 1080 val = PORT_OVERRIDE_EN; 1081 } else { 1082 off = B53_GMII_PORT_OVERRIDE_CTRL(port); 1083 val = GMII_PO_EN; 1084 } 1085 1086 b53_read8(dev, B53_CTRL_PAGE, off, ®); 1087 reg |= val; 1088 if (link) 1089 reg |= PORT_OVERRIDE_LINK; 1090 else 1091 reg &= ~PORT_OVERRIDE_LINK; 1092 b53_write8(dev, B53_CTRL_PAGE, off, reg); 1093 } 1094 1095 static void b53_force_port_config(struct b53_device *dev, int port, 1096 int speed, int duplex, 1097 bool tx_pause, bool rx_pause) 1098 { 1099 u8 reg, val, off; 1100 1101 /* Override the port settings */ 1102 if (port == dev->cpu_port) { 1103 off = B53_PORT_OVERRIDE_CTRL; 1104 val = PORT_OVERRIDE_EN; 1105 } else { 1106 off = B53_GMII_PORT_OVERRIDE_CTRL(port); 1107 val = GMII_PO_EN; 1108 } 1109 1110 b53_read8(dev, B53_CTRL_PAGE, off, ®); 1111 reg |= val; 1112 if (duplex == DUPLEX_FULL) 1113 reg |= PORT_OVERRIDE_FULL_DUPLEX; 1114 else 1115 reg &= ~PORT_OVERRIDE_FULL_DUPLEX; 1116 1117 switch (speed) { 1118 case 2000: 1119 reg |= PORT_OVERRIDE_SPEED_2000M; 1120 fallthrough; 1121 case SPEED_1000: 1122 reg |= PORT_OVERRIDE_SPEED_1000M; 1123 break; 1124 case SPEED_100: 1125 reg |= PORT_OVERRIDE_SPEED_100M; 1126 break; 1127 case SPEED_10: 1128 reg |= PORT_OVERRIDE_SPEED_10M; 1129 break; 1130 default: 1131 dev_err(dev->dev, "unknown speed: %d\n", speed); 1132 return; 1133 } 1134 1135 if (rx_pause) 1136 reg |= PORT_OVERRIDE_RX_FLOW; 1137 if (tx_pause) 1138 reg |= PORT_OVERRIDE_TX_FLOW; 1139 1140 b53_write8(dev, B53_CTRL_PAGE, off, reg); 1141 } 1142 1143 static void b53_adjust_link(struct dsa_switch *ds, int port, 1144 struct phy_device *phydev) 1145 { 1146 struct b53_device *dev = ds->priv; 1147 struct ethtool_eee *p = &dev->ports[port].eee; 1148 u8 rgmii_ctrl = 0, reg = 0, off; 1149 bool tx_pause = false; 1150 bool rx_pause = false; 1151 1152 if (!phy_is_pseudo_fixed_link(phydev)) 1153 return; 1154 1155 /* Enable flow control on BCM5301x's CPU port */ 1156 if (is5301x(dev) && port == dev->cpu_port) 1157 tx_pause = rx_pause = true; 1158 1159 if (phydev->pause) { 1160 if (phydev->asym_pause) 1161 tx_pause = true; 1162 rx_pause = true; 1163 } 1164 1165 b53_force_port_config(dev, port, phydev->speed, phydev->duplex, 1166 tx_pause, rx_pause); 1167 b53_force_link(dev, port, phydev->link); 1168 1169 if (is531x5(dev) && phy_interface_is_rgmii(phydev)) { 1170 if (port == 8) 1171 off = B53_RGMII_CTRL_IMP; 1172 else 1173 off = B53_RGMII_CTRL_P(port); 1174 1175 /* Configure the port RGMII clock delay by DLL disabled and 1176 * tx_clk aligned timing (restoring to reset defaults) 1177 */ 1178 b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl); 1179 rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC | 1180 RGMII_CTRL_TIMING_SEL); 1181 1182 /* PHY_INTERFACE_MODE_RGMII_TXID means TX internal delay, make 1183 * sure that we enable the port TX clock internal delay to 1184 * account for this internal delay that is inserted, otherwise 1185 * the switch won't be able to receive correctly. 1186 * 1187 * PHY_INTERFACE_MODE_RGMII means that we are not introducing 1188 * any delay neither on transmission nor reception, so the 1189 * BCM53125 must also be configured accordingly to account for 1190 * the lack of delay and introduce 1191 * 1192 * The BCM53125 switch has its RX clock and TX clock control 1193 * swapped, hence the reason why we modify the TX clock path in 1194 * the "RGMII" case 1195 */ 1196 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) 1197 rgmii_ctrl |= RGMII_CTRL_DLL_TXC; 1198 if (phydev->interface == PHY_INTERFACE_MODE_RGMII) 1199 rgmii_ctrl |= RGMII_CTRL_DLL_TXC | RGMII_CTRL_DLL_RXC; 1200 rgmii_ctrl |= RGMII_CTRL_TIMING_SEL; 1201 b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl); 1202 1203 dev_info(ds->dev, "Configured port %d for %s\n", port, 1204 phy_modes(phydev->interface)); 1205 } 1206 1207 /* configure MII port if necessary */ 1208 if (is5325(dev)) { 1209 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, 1210 ®); 1211 1212 /* reverse mii needs to be enabled */ 1213 if (!(reg & PORT_OVERRIDE_RV_MII_25)) { 1214 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, 1215 reg | PORT_OVERRIDE_RV_MII_25); 1216 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, 1217 ®); 1218 1219 if (!(reg & PORT_OVERRIDE_RV_MII_25)) { 1220 dev_err(ds->dev, 1221 "Failed to enable reverse MII mode\n"); 1222 return; 1223 } 1224 } 1225 } else if (is5301x(dev)) { 1226 if (port != dev->cpu_port) { 1227 b53_force_port_config(dev, dev->cpu_port, 2000, 1228 DUPLEX_FULL, true, true); 1229 b53_force_link(dev, dev->cpu_port, 1); 1230 } 1231 } 1232 1233 /* Re-negotiate EEE if it was enabled already */ 1234 p->eee_enabled = b53_eee_init(ds, port, phydev); 1235 } 1236 1237 void b53_port_event(struct dsa_switch *ds, int port) 1238 { 1239 struct b53_device *dev = ds->priv; 1240 bool link; 1241 u16 sts; 1242 1243 b53_read16(dev, B53_STAT_PAGE, B53_LINK_STAT, &sts); 1244 link = !!(sts & BIT(port)); 1245 dsa_port_phylink_mac_change(ds, port, link); 1246 } 1247 EXPORT_SYMBOL(b53_port_event); 1248 1249 void b53_phylink_validate(struct dsa_switch *ds, int port, 1250 unsigned long *supported, 1251 struct phylink_link_state *state) 1252 { 1253 struct b53_device *dev = ds->priv; 1254 __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, }; 1255 1256 if (dev->ops->serdes_phylink_validate) 1257 dev->ops->serdes_phylink_validate(dev, port, mask, state); 1258 1259 /* Allow all the expected bits */ 1260 phylink_set(mask, Autoneg); 1261 phylink_set_port_modes(mask); 1262 phylink_set(mask, Pause); 1263 phylink_set(mask, Asym_Pause); 1264 1265 /* With the exclusion of 5325/5365, MII, Reverse MII and 802.3z, we 1266 * support Gigabit, including Half duplex. 1267 */ 1268 if (state->interface != PHY_INTERFACE_MODE_MII && 1269 state->interface != PHY_INTERFACE_MODE_REVMII && 1270 !phy_interface_mode_is_8023z(state->interface) && 1271 !(is5325(dev) || is5365(dev))) { 1272 phylink_set(mask, 1000baseT_Full); 1273 phylink_set(mask, 1000baseT_Half); 1274 } 1275 1276 if (!phy_interface_mode_is_8023z(state->interface)) { 1277 phylink_set(mask, 10baseT_Half); 1278 phylink_set(mask, 10baseT_Full); 1279 phylink_set(mask, 100baseT_Half); 1280 phylink_set(mask, 100baseT_Full); 1281 } 1282 1283 bitmap_and(supported, supported, mask, 1284 __ETHTOOL_LINK_MODE_MASK_NBITS); 1285 bitmap_and(state->advertising, state->advertising, mask, 1286 __ETHTOOL_LINK_MODE_MASK_NBITS); 1287 1288 phylink_helper_basex_speed(state); 1289 } 1290 EXPORT_SYMBOL(b53_phylink_validate); 1291 1292 int b53_phylink_mac_link_state(struct dsa_switch *ds, int port, 1293 struct phylink_link_state *state) 1294 { 1295 struct b53_device *dev = ds->priv; 1296 int ret = -EOPNOTSUPP; 1297 1298 if ((phy_interface_mode_is_8023z(state->interface) || 1299 state->interface == PHY_INTERFACE_MODE_SGMII) && 1300 dev->ops->serdes_link_state) 1301 ret = dev->ops->serdes_link_state(dev, port, state); 1302 1303 return ret; 1304 } 1305 EXPORT_SYMBOL(b53_phylink_mac_link_state); 1306 1307 void b53_phylink_mac_config(struct dsa_switch *ds, int port, 1308 unsigned int mode, 1309 const struct phylink_link_state *state) 1310 { 1311 struct b53_device *dev = ds->priv; 1312 1313 if (mode == MLO_AN_PHY || mode == MLO_AN_FIXED) 1314 return; 1315 1316 if ((phy_interface_mode_is_8023z(state->interface) || 1317 state->interface == PHY_INTERFACE_MODE_SGMII) && 1318 dev->ops->serdes_config) 1319 dev->ops->serdes_config(dev, port, mode, state); 1320 } 1321 EXPORT_SYMBOL(b53_phylink_mac_config); 1322 1323 void b53_phylink_mac_an_restart(struct dsa_switch *ds, int port) 1324 { 1325 struct b53_device *dev = ds->priv; 1326 1327 if (dev->ops->serdes_an_restart) 1328 dev->ops->serdes_an_restart(dev, port); 1329 } 1330 EXPORT_SYMBOL(b53_phylink_mac_an_restart); 1331 1332 void b53_phylink_mac_link_down(struct dsa_switch *ds, int port, 1333 unsigned int mode, 1334 phy_interface_t interface) 1335 { 1336 struct b53_device *dev = ds->priv; 1337 1338 if (mode == MLO_AN_PHY) 1339 return; 1340 1341 if (mode == MLO_AN_FIXED) { 1342 b53_force_link(dev, port, false); 1343 return; 1344 } 1345 1346 if (phy_interface_mode_is_8023z(interface) && 1347 dev->ops->serdes_link_set) 1348 dev->ops->serdes_link_set(dev, port, mode, interface, false); 1349 } 1350 EXPORT_SYMBOL(b53_phylink_mac_link_down); 1351 1352 void b53_phylink_mac_link_up(struct dsa_switch *ds, int port, 1353 unsigned int mode, 1354 phy_interface_t interface, 1355 struct phy_device *phydev, 1356 int speed, int duplex, 1357 bool tx_pause, bool rx_pause) 1358 { 1359 struct b53_device *dev = ds->priv; 1360 1361 if (mode == MLO_AN_PHY) 1362 return; 1363 1364 if (mode == MLO_AN_FIXED) { 1365 b53_force_port_config(dev, port, speed, duplex, 1366 tx_pause, rx_pause); 1367 b53_force_link(dev, port, true); 1368 return; 1369 } 1370 1371 if (phy_interface_mode_is_8023z(interface) && 1372 dev->ops->serdes_link_set) 1373 dev->ops->serdes_link_set(dev, port, mode, interface, true); 1374 } 1375 EXPORT_SYMBOL(b53_phylink_mac_link_up); 1376 1377 int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering) 1378 { 1379 struct b53_device *dev = ds->priv; 1380 1381 b53_enable_vlan(dev, dev->vlan_enabled, vlan_filtering); 1382 1383 return 0; 1384 } 1385 EXPORT_SYMBOL(b53_vlan_filtering); 1386 1387 int b53_vlan_prepare(struct dsa_switch *ds, int port, 1388 const struct switchdev_obj_port_vlan *vlan) 1389 { 1390 struct b53_device *dev = ds->priv; 1391 1392 if ((is5325(dev) || is5365(dev)) && vlan->vid == 0) 1393 return -EOPNOTSUPP; 1394 1395 /* Port 7 on 7278 connects to the ASP's UniMAC which is not capable of 1396 * receiving VLAN tagged frames at all, we can still allow the port to 1397 * be configured for egress untagged. 1398 */ 1399 if (dev->chip_id == BCM7278_DEVICE_ID && port == 7 && 1400 !(vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED)) 1401 return -EINVAL; 1402 1403 if (vlan->vid > dev->num_vlans) 1404 return -ERANGE; 1405 1406 b53_enable_vlan(dev, true, ds->vlan_filtering); 1407 1408 return 0; 1409 } 1410 EXPORT_SYMBOL(b53_vlan_prepare); 1411 1412 void b53_vlan_add(struct dsa_switch *ds, int port, 1413 const struct switchdev_obj_port_vlan *vlan) 1414 { 1415 struct b53_device *dev = ds->priv; 1416 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; 1417 bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; 1418 struct b53_vlan *vl; 1419 1420 vl = &dev->vlans[vlan->vid]; 1421 1422 b53_get_vlan_entry(dev, vlan->vid, vl); 1423 1424 if (vlan->vid == 0 && vlan->vid == b53_default_pvid(dev)) 1425 untagged = true; 1426 1427 vl->members |= BIT(port); 1428 if (untagged && !dsa_is_cpu_port(ds, port)) 1429 vl->untag |= BIT(port); 1430 else 1431 vl->untag &= ~BIT(port); 1432 1433 b53_set_vlan_entry(dev, vlan->vid, vl); 1434 b53_fast_age_vlan(dev, vlan->vid); 1435 1436 if (pvid && !dsa_is_cpu_port(ds, port)) { 1437 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), 1438 vlan->vid); 1439 b53_fast_age_vlan(dev, vlan->vid); 1440 } 1441 } 1442 EXPORT_SYMBOL(b53_vlan_add); 1443 1444 int b53_vlan_del(struct dsa_switch *ds, int port, 1445 const struct switchdev_obj_port_vlan *vlan) 1446 { 1447 struct b53_device *dev = ds->priv; 1448 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; 1449 struct b53_vlan *vl; 1450 u16 pvid; 1451 1452 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), &pvid); 1453 1454 vl = &dev->vlans[vlan->vid]; 1455 1456 b53_get_vlan_entry(dev, vlan->vid, vl); 1457 1458 vl->members &= ~BIT(port); 1459 1460 if (pvid == vlan->vid) 1461 pvid = b53_default_pvid(dev); 1462 1463 if (untagged && !dsa_is_cpu_port(ds, port)) 1464 vl->untag &= ~(BIT(port)); 1465 1466 b53_set_vlan_entry(dev, vlan->vid, vl); 1467 b53_fast_age_vlan(dev, vlan->vid); 1468 1469 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), pvid); 1470 b53_fast_age_vlan(dev, pvid); 1471 1472 return 0; 1473 } 1474 EXPORT_SYMBOL(b53_vlan_del); 1475 1476 /* Address Resolution Logic routines */ 1477 static int b53_arl_op_wait(struct b53_device *dev) 1478 { 1479 unsigned int timeout = 10; 1480 u8 reg; 1481 1482 do { 1483 b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®); 1484 if (!(reg & ARLTBL_START_DONE)) 1485 return 0; 1486 1487 usleep_range(1000, 2000); 1488 } while (timeout--); 1489 1490 dev_warn(dev->dev, "timeout waiting for ARL to finish: 0x%02x\n", reg); 1491 1492 return -ETIMEDOUT; 1493 } 1494 1495 static int b53_arl_rw_op(struct b53_device *dev, unsigned int op) 1496 { 1497 u8 reg; 1498 1499 if (op > ARLTBL_RW) 1500 return -EINVAL; 1501 1502 b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®); 1503 reg |= ARLTBL_START_DONE; 1504 if (op) 1505 reg |= ARLTBL_RW; 1506 else 1507 reg &= ~ARLTBL_RW; 1508 if (dev->vlan_enabled) 1509 reg &= ~ARLTBL_IVL_SVL_SELECT; 1510 else 1511 reg |= ARLTBL_IVL_SVL_SELECT; 1512 b53_write8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, reg); 1513 1514 return b53_arl_op_wait(dev); 1515 } 1516 1517 static int b53_arl_read(struct b53_device *dev, u64 mac, 1518 u16 vid, struct b53_arl_entry *ent, u8 *idx) 1519 { 1520 DECLARE_BITMAP(free_bins, B53_ARLTBL_MAX_BIN_ENTRIES); 1521 unsigned int i; 1522 int ret; 1523 1524 ret = b53_arl_op_wait(dev); 1525 if (ret) 1526 return ret; 1527 1528 bitmap_zero(free_bins, dev->num_arl_bins); 1529 1530 /* Read the bins */ 1531 for (i = 0; i < dev->num_arl_bins; i++) { 1532 u64 mac_vid; 1533 u32 fwd_entry; 1534 1535 b53_read64(dev, B53_ARLIO_PAGE, 1536 B53_ARLTBL_MAC_VID_ENTRY(i), &mac_vid); 1537 b53_read32(dev, B53_ARLIO_PAGE, 1538 B53_ARLTBL_DATA_ENTRY(i), &fwd_entry); 1539 b53_arl_to_entry(ent, mac_vid, fwd_entry); 1540 1541 if (!(fwd_entry & ARLTBL_VALID)) { 1542 set_bit(i, free_bins); 1543 continue; 1544 } 1545 if ((mac_vid & ARLTBL_MAC_MASK) != mac) 1546 continue; 1547 if (dev->vlan_enabled && 1548 ((mac_vid >> ARLTBL_VID_S) & ARLTBL_VID_MASK) != vid) 1549 continue; 1550 *idx = i; 1551 return 0; 1552 } 1553 1554 if (bitmap_weight(free_bins, dev->num_arl_bins) == 0) 1555 return -ENOSPC; 1556 1557 *idx = find_first_bit(free_bins, dev->num_arl_bins); 1558 1559 return -ENOENT; 1560 } 1561 1562 static int b53_arl_op(struct b53_device *dev, int op, int port, 1563 const unsigned char *addr, u16 vid, bool is_valid) 1564 { 1565 struct b53_arl_entry ent; 1566 u32 fwd_entry; 1567 u64 mac, mac_vid = 0; 1568 u8 idx = 0; 1569 int ret; 1570 1571 /* Convert the array into a 64-bit MAC */ 1572 mac = ether_addr_to_u64(addr); 1573 1574 /* Perform a read for the given MAC and VID */ 1575 b53_write48(dev, B53_ARLIO_PAGE, B53_MAC_ADDR_IDX, mac); 1576 b53_write16(dev, B53_ARLIO_PAGE, B53_VLAN_ID_IDX, vid); 1577 1578 /* Issue a read operation for this MAC */ 1579 ret = b53_arl_rw_op(dev, 1); 1580 if (ret) 1581 return ret; 1582 1583 ret = b53_arl_read(dev, mac, vid, &ent, &idx); 1584 1585 /* If this is a read, just finish now */ 1586 if (op) 1587 return ret; 1588 1589 switch (ret) { 1590 case -ETIMEDOUT: 1591 return ret; 1592 case -ENOSPC: 1593 dev_dbg(dev->dev, "{%pM,%.4d} no space left in ARL\n", 1594 addr, vid); 1595 return is_valid ? ret : 0; 1596 case -ENOENT: 1597 /* We could not find a matching MAC, so reset to a new entry */ 1598 dev_dbg(dev->dev, "{%pM,%.4d} not found, using idx: %d\n", 1599 addr, vid, idx); 1600 fwd_entry = 0; 1601 break; 1602 default: 1603 dev_dbg(dev->dev, "{%pM,%.4d} found, using idx: %d\n", 1604 addr, vid, idx); 1605 break; 1606 } 1607 1608 /* For multicast address, the port is a bitmask and the validity 1609 * is determined by having at least one port being still active 1610 */ 1611 if (!is_multicast_ether_addr(addr)) { 1612 ent.port = port; 1613 ent.is_valid = is_valid; 1614 } else { 1615 if (is_valid) 1616 ent.port |= BIT(port); 1617 else 1618 ent.port &= ~BIT(port); 1619 1620 ent.is_valid = !!(ent.port); 1621 } 1622 1623 ent.vid = vid; 1624 ent.is_static = true; 1625 ent.is_age = false; 1626 memcpy(ent.mac, addr, ETH_ALEN); 1627 b53_arl_from_entry(&mac_vid, &fwd_entry, &ent); 1628 1629 b53_write64(dev, B53_ARLIO_PAGE, 1630 B53_ARLTBL_MAC_VID_ENTRY(idx), mac_vid); 1631 b53_write32(dev, B53_ARLIO_PAGE, 1632 B53_ARLTBL_DATA_ENTRY(idx), fwd_entry); 1633 1634 return b53_arl_rw_op(dev, 0); 1635 } 1636 1637 int b53_fdb_add(struct dsa_switch *ds, int port, 1638 const unsigned char *addr, u16 vid) 1639 { 1640 struct b53_device *priv = ds->priv; 1641 1642 /* 5325 and 5365 require some more massaging, but could 1643 * be supported eventually 1644 */ 1645 if (is5325(priv) || is5365(priv)) 1646 return -EOPNOTSUPP; 1647 1648 return b53_arl_op(priv, 0, port, addr, vid, true); 1649 } 1650 EXPORT_SYMBOL(b53_fdb_add); 1651 1652 int b53_fdb_del(struct dsa_switch *ds, int port, 1653 const unsigned char *addr, u16 vid) 1654 { 1655 struct b53_device *priv = ds->priv; 1656 1657 return b53_arl_op(priv, 0, port, addr, vid, false); 1658 } 1659 EXPORT_SYMBOL(b53_fdb_del); 1660 1661 static int b53_arl_search_wait(struct b53_device *dev) 1662 { 1663 unsigned int timeout = 1000; 1664 u8 reg; 1665 1666 do { 1667 b53_read8(dev, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, ®); 1668 if (!(reg & ARL_SRCH_STDN)) 1669 return 0; 1670 1671 if (reg & ARL_SRCH_VLID) 1672 return 0; 1673 1674 usleep_range(1000, 2000); 1675 } while (timeout--); 1676 1677 return -ETIMEDOUT; 1678 } 1679 1680 static void b53_arl_search_rd(struct b53_device *dev, u8 idx, 1681 struct b53_arl_entry *ent) 1682 { 1683 u64 mac_vid; 1684 u32 fwd_entry; 1685 1686 b53_read64(dev, B53_ARLIO_PAGE, 1687 B53_ARL_SRCH_RSTL_MACVID(idx), &mac_vid); 1688 b53_read32(dev, B53_ARLIO_PAGE, 1689 B53_ARL_SRCH_RSTL(idx), &fwd_entry); 1690 b53_arl_to_entry(ent, mac_vid, fwd_entry); 1691 } 1692 1693 static int b53_fdb_copy(int port, const struct b53_arl_entry *ent, 1694 dsa_fdb_dump_cb_t *cb, void *data) 1695 { 1696 if (!ent->is_valid) 1697 return 0; 1698 1699 if (port != ent->port) 1700 return 0; 1701 1702 return cb(ent->mac, ent->vid, ent->is_static, data); 1703 } 1704 1705 int b53_fdb_dump(struct dsa_switch *ds, int port, 1706 dsa_fdb_dump_cb_t *cb, void *data) 1707 { 1708 struct b53_device *priv = ds->priv; 1709 struct b53_arl_entry results[2]; 1710 unsigned int count = 0; 1711 int ret; 1712 u8 reg; 1713 1714 /* Start search operation */ 1715 reg = ARL_SRCH_STDN; 1716 b53_write8(priv, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, reg); 1717 1718 do { 1719 ret = b53_arl_search_wait(priv); 1720 if (ret) 1721 return ret; 1722 1723 b53_arl_search_rd(priv, 0, &results[0]); 1724 ret = b53_fdb_copy(port, &results[0], cb, data); 1725 if (ret) 1726 return ret; 1727 1728 if (priv->num_arl_bins > 2) { 1729 b53_arl_search_rd(priv, 1, &results[1]); 1730 ret = b53_fdb_copy(port, &results[1], cb, data); 1731 if (ret) 1732 return ret; 1733 1734 if (!results[0].is_valid && !results[1].is_valid) 1735 break; 1736 } 1737 1738 } while (count++ < b53_max_arl_entries(priv) / 2); 1739 1740 return 0; 1741 } 1742 EXPORT_SYMBOL(b53_fdb_dump); 1743 1744 int b53_mdb_prepare(struct dsa_switch *ds, int port, 1745 const struct switchdev_obj_port_mdb *mdb) 1746 { 1747 struct b53_device *priv = ds->priv; 1748 1749 /* 5325 and 5365 require some more massaging, but could 1750 * be supported eventually 1751 */ 1752 if (is5325(priv) || is5365(priv)) 1753 return -EOPNOTSUPP; 1754 1755 return 0; 1756 } 1757 EXPORT_SYMBOL(b53_mdb_prepare); 1758 1759 void b53_mdb_add(struct dsa_switch *ds, int port, 1760 const struct switchdev_obj_port_mdb *mdb) 1761 { 1762 struct b53_device *priv = ds->priv; 1763 int ret; 1764 1765 ret = b53_arl_op(priv, 0, port, mdb->addr, mdb->vid, true); 1766 if (ret) 1767 dev_err(ds->dev, "failed to add MDB entry\n"); 1768 } 1769 EXPORT_SYMBOL(b53_mdb_add); 1770 1771 int b53_mdb_del(struct dsa_switch *ds, int port, 1772 const struct switchdev_obj_port_mdb *mdb) 1773 { 1774 struct b53_device *priv = ds->priv; 1775 int ret; 1776 1777 ret = b53_arl_op(priv, 0, port, mdb->addr, mdb->vid, false); 1778 if (ret) 1779 dev_err(ds->dev, "failed to delete MDB entry\n"); 1780 1781 return ret; 1782 } 1783 EXPORT_SYMBOL(b53_mdb_del); 1784 1785 int b53_br_join(struct dsa_switch *ds, int port, struct net_device *br) 1786 { 1787 struct b53_device *dev = ds->priv; 1788 s8 cpu_port = dsa_to_port(ds, port)->cpu_dp->index; 1789 u16 pvlan, reg; 1790 unsigned int i; 1791 1792 /* On 7278, port 7 which connects to the ASP should only receive 1793 * traffic from matching CFP rules. 1794 */ 1795 if (dev->chip_id == BCM7278_DEVICE_ID && port == 7) 1796 return -EINVAL; 1797 1798 /* Make this port leave the all VLANs join since we will have proper 1799 * VLAN entries from now on 1800 */ 1801 if (is58xx(dev)) { 1802 b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®); 1803 reg &= ~BIT(port); 1804 if ((reg & BIT(cpu_port)) == BIT(cpu_port)) 1805 reg &= ~BIT(cpu_port); 1806 b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg); 1807 } 1808 1809 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan); 1810 1811 b53_for_each_port(dev, i) { 1812 if (dsa_to_port(ds, i)->bridge_dev != br) 1813 continue; 1814 1815 /* Add this local port to the remote port VLAN control 1816 * membership and update the remote port bitmask 1817 */ 1818 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®); 1819 reg |= BIT(port); 1820 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg); 1821 dev->ports[i].vlan_ctl_mask = reg; 1822 1823 pvlan |= BIT(i); 1824 } 1825 1826 /* Configure the local port VLAN control membership to include 1827 * remote ports and update the local port bitmask 1828 */ 1829 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan); 1830 dev->ports[port].vlan_ctl_mask = pvlan; 1831 1832 return 0; 1833 } 1834 EXPORT_SYMBOL(b53_br_join); 1835 1836 void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *br) 1837 { 1838 struct b53_device *dev = ds->priv; 1839 struct b53_vlan *vl = &dev->vlans[0]; 1840 s8 cpu_port = dsa_to_port(ds, port)->cpu_dp->index; 1841 unsigned int i; 1842 u16 pvlan, reg, pvid; 1843 1844 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan); 1845 1846 b53_for_each_port(dev, i) { 1847 /* Don't touch the remaining ports */ 1848 if (dsa_to_port(ds, i)->bridge_dev != br) 1849 continue; 1850 1851 b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®); 1852 reg &= ~BIT(port); 1853 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg); 1854 dev->ports[port].vlan_ctl_mask = reg; 1855 1856 /* Prevent self removal to preserve isolation */ 1857 if (port != i) 1858 pvlan &= ~BIT(i); 1859 } 1860 1861 b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan); 1862 dev->ports[port].vlan_ctl_mask = pvlan; 1863 1864 pvid = b53_default_pvid(dev); 1865 1866 /* Make this port join all VLANs without VLAN entries */ 1867 if (is58xx(dev)) { 1868 b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®); 1869 reg |= BIT(port); 1870 if (!(reg & BIT(cpu_port))) 1871 reg |= BIT(cpu_port); 1872 b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg); 1873 } else { 1874 b53_get_vlan_entry(dev, pvid, vl); 1875 vl->members |= BIT(port) | BIT(cpu_port); 1876 vl->untag |= BIT(port) | BIT(cpu_port); 1877 b53_set_vlan_entry(dev, pvid, vl); 1878 } 1879 } 1880 EXPORT_SYMBOL(b53_br_leave); 1881 1882 void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state) 1883 { 1884 struct b53_device *dev = ds->priv; 1885 u8 hw_state; 1886 u8 reg; 1887 1888 switch (state) { 1889 case BR_STATE_DISABLED: 1890 hw_state = PORT_CTRL_DIS_STATE; 1891 break; 1892 case BR_STATE_LISTENING: 1893 hw_state = PORT_CTRL_LISTEN_STATE; 1894 break; 1895 case BR_STATE_LEARNING: 1896 hw_state = PORT_CTRL_LEARN_STATE; 1897 break; 1898 case BR_STATE_FORWARDING: 1899 hw_state = PORT_CTRL_FWD_STATE; 1900 break; 1901 case BR_STATE_BLOCKING: 1902 hw_state = PORT_CTRL_BLOCK_STATE; 1903 break; 1904 default: 1905 dev_err(ds->dev, "invalid STP state: %d\n", state); 1906 return; 1907 } 1908 1909 b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®); 1910 reg &= ~PORT_CTRL_STP_STATE_MASK; 1911 reg |= hw_state; 1912 b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg); 1913 } 1914 EXPORT_SYMBOL(b53_br_set_stp_state); 1915 1916 void b53_br_fast_age(struct dsa_switch *ds, int port) 1917 { 1918 struct b53_device *dev = ds->priv; 1919 1920 if (b53_fast_age_port(dev, port)) 1921 dev_err(ds->dev, "fast ageing failed\n"); 1922 } 1923 EXPORT_SYMBOL(b53_br_fast_age); 1924 1925 int b53_br_egress_floods(struct dsa_switch *ds, int port, 1926 bool unicast, bool multicast) 1927 { 1928 struct b53_device *dev = ds->priv; 1929 u16 uc, mc; 1930 1931 b53_read16(dev, B53_CTRL_PAGE, B53_UC_FLOOD_MASK, &uc); 1932 if (unicast) 1933 uc |= BIT(port); 1934 else 1935 uc &= ~BIT(port); 1936 b53_write16(dev, B53_CTRL_PAGE, B53_UC_FLOOD_MASK, uc); 1937 1938 b53_read16(dev, B53_CTRL_PAGE, B53_MC_FLOOD_MASK, &mc); 1939 if (multicast) 1940 mc |= BIT(port); 1941 else 1942 mc &= ~BIT(port); 1943 b53_write16(dev, B53_CTRL_PAGE, B53_MC_FLOOD_MASK, mc); 1944 1945 b53_read16(dev, B53_CTRL_PAGE, B53_IPMC_FLOOD_MASK, &mc); 1946 if (multicast) 1947 mc |= BIT(port); 1948 else 1949 mc &= ~BIT(port); 1950 b53_write16(dev, B53_CTRL_PAGE, B53_IPMC_FLOOD_MASK, mc); 1951 1952 return 0; 1953 1954 } 1955 EXPORT_SYMBOL(b53_br_egress_floods); 1956 1957 static bool b53_possible_cpu_port(struct dsa_switch *ds, int port) 1958 { 1959 /* Broadcom switches will accept enabling Broadcom tags on the 1960 * following ports: 5, 7 and 8, any other port is not supported 1961 */ 1962 switch (port) { 1963 case B53_CPU_PORT_25: 1964 case 7: 1965 case B53_CPU_PORT: 1966 return true; 1967 } 1968 1969 return false; 1970 } 1971 1972 static bool b53_can_enable_brcm_tags(struct dsa_switch *ds, int port, 1973 enum dsa_tag_protocol tag_protocol) 1974 { 1975 bool ret = b53_possible_cpu_port(ds, port); 1976 1977 if (!ret) { 1978 dev_warn(ds->dev, "Port %d is not Broadcom tag capable\n", 1979 port); 1980 return ret; 1981 } 1982 1983 switch (tag_protocol) { 1984 case DSA_TAG_PROTO_BRCM: 1985 case DSA_TAG_PROTO_BRCM_PREPEND: 1986 dev_warn(ds->dev, 1987 "Port %d is stacked to Broadcom tag switch\n", port); 1988 ret = false; 1989 break; 1990 default: 1991 ret = true; 1992 break; 1993 } 1994 1995 return ret; 1996 } 1997 1998 enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port, 1999 enum dsa_tag_protocol mprot) 2000 { 2001 struct b53_device *dev = ds->priv; 2002 2003 /* Older models (5325, 5365) support a different tag format that we do 2004 * not support in net/dsa/tag_brcm.c yet. 2005 */ 2006 if (is5325(dev) || is5365(dev) || 2007 !b53_can_enable_brcm_tags(ds, port, mprot)) { 2008 dev->tag_protocol = DSA_TAG_PROTO_NONE; 2009 goto out; 2010 } 2011 2012 /* Broadcom BCM58xx chips have a flow accelerator on Port 8 2013 * which requires us to use the prepended Broadcom tag type 2014 */ 2015 if (dev->chip_id == BCM58XX_DEVICE_ID && port == B53_CPU_PORT) { 2016 dev->tag_protocol = DSA_TAG_PROTO_BRCM_PREPEND; 2017 goto out; 2018 } 2019 2020 dev->tag_protocol = DSA_TAG_PROTO_BRCM; 2021 out: 2022 return dev->tag_protocol; 2023 } 2024 EXPORT_SYMBOL(b53_get_tag_protocol); 2025 2026 int b53_mirror_add(struct dsa_switch *ds, int port, 2027 struct dsa_mall_mirror_tc_entry *mirror, bool ingress) 2028 { 2029 struct b53_device *dev = ds->priv; 2030 u16 reg, loc; 2031 2032 if (ingress) 2033 loc = B53_IG_MIR_CTL; 2034 else 2035 loc = B53_EG_MIR_CTL; 2036 2037 b53_read16(dev, B53_MGMT_PAGE, loc, ®); 2038 reg |= BIT(port); 2039 b53_write16(dev, B53_MGMT_PAGE, loc, reg); 2040 2041 b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®); 2042 reg &= ~CAP_PORT_MASK; 2043 reg |= mirror->to_local_port; 2044 reg |= MIRROR_EN; 2045 b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg); 2046 2047 return 0; 2048 } 2049 EXPORT_SYMBOL(b53_mirror_add); 2050 2051 void b53_mirror_del(struct dsa_switch *ds, int port, 2052 struct dsa_mall_mirror_tc_entry *mirror) 2053 { 2054 struct b53_device *dev = ds->priv; 2055 bool loc_disable = false, other_loc_disable = false; 2056 u16 reg, loc; 2057 2058 if (mirror->ingress) 2059 loc = B53_IG_MIR_CTL; 2060 else 2061 loc = B53_EG_MIR_CTL; 2062 2063 /* Update the desired ingress/egress register */ 2064 b53_read16(dev, B53_MGMT_PAGE, loc, ®); 2065 reg &= ~BIT(port); 2066 if (!(reg & MIRROR_MASK)) 2067 loc_disable = true; 2068 b53_write16(dev, B53_MGMT_PAGE, loc, reg); 2069 2070 /* Now look at the other one to know if we can disable mirroring 2071 * entirely 2072 */ 2073 if (mirror->ingress) 2074 b53_read16(dev, B53_MGMT_PAGE, B53_EG_MIR_CTL, ®); 2075 else 2076 b53_read16(dev, B53_MGMT_PAGE, B53_IG_MIR_CTL, ®); 2077 if (!(reg & MIRROR_MASK)) 2078 other_loc_disable = true; 2079 2080 b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®); 2081 /* Both no longer have ports, let's disable mirroring */ 2082 if (loc_disable && other_loc_disable) { 2083 reg &= ~MIRROR_EN; 2084 reg &= ~mirror->to_local_port; 2085 } 2086 b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg); 2087 } 2088 EXPORT_SYMBOL(b53_mirror_del); 2089 2090 void b53_eee_enable_set(struct dsa_switch *ds, int port, bool enable) 2091 { 2092 struct b53_device *dev = ds->priv; 2093 u16 reg; 2094 2095 b53_read16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, ®); 2096 if (enable) 2097 reg |= BIT(port); 2098 else 2099 reg &= ~BIT(port); 2100 b53_write16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, reg); 2101 } 2102 EXPORT_SYMBOL(b53_eee_enable_set); 2103 2104 2105 /* Returns 0 if EEE was not enabled, or 1 otherwise 2106 */ 2107 int b53_eee_init(struct dsa_switch *ds, int port, struct phy_device *phy) 2108 { 2109 int ret; 2110 2111 ret = phy_init_eee(phy, 0); 2112 if (ret) 2113 return 0; 2114 2115 b53_eee_enable_set(ds, port, true); 2116 2117 return 1; 2118 } 2119 EXPORT_SYMBOL(b53_eee_init); 2120 2121 int b53_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e) 2122 { 2123 struct b53_device *dev = ds->priv; 2124 struct ethtool_eee *p = &dev->ports[port].eee; 2125 u16 reg; 2126 2127 if (is5325(dev) || is5365(dev)) 2128 return -EOPNOTSUPP; 2129 2130 b53_read16(dev, B53_EEE_PAGE, B53_EEE_LPI_INDICATE, ®); 2131 e->eee_enabled = p->eee_enabled; 2132 e->eee_active = !!(reg & BIT(port)); 2133 2134 return 0; 2135 } 2136 EXPORT_SYMBOL(b53_get_mac_eee); 2137 2138 int b53_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e) 2139 { 2140 struct b53_device *dev = ds->priv; 2141 struct ethtool_eee *p = &dev->ports[port].eee; 2142 2143 if (is5325(dev) || is5365(dev)) 2144 return -EOPNOTSUPP; 2145 2146 p->eee_enabled = e->eee_enabled; 2147 b53_eee_enable_set(ds, port, e->eee_enabled); 2148 2149 return 0; 2150 } 2151 EXPORT_SYMBOL(b53_set_mac_eee); 2152 2153 static int b53_change_mtu(struct dsa_switch *ds, int port, int mtu) 2154 { 2155 struct b53_device *dev = ds->priv; 2156 bool enable_jumbo; 2157 bool allow_10_100; 2158 2159 if (is5325(dev) || is5365(dev)) 2160 return -EOPNOTSUPP; 2161 2162 enable_jumbo = (mtu >= JMS_MIN_SIZE); 2163 allow_10_100 = (dev->chip_id == BCM583XX_DEVICE_ID); 2164 2165 return b53_set_jumbo(dev, enable_jumbo, allow_10_100); 2166 } 2167 2168 static int b53_get_max_mtu(struct dsa_switch *ds, int port) 2169 { 2170 return JMS_MAX_SIZE; 2171 } 2172 2173 static const struct dsa_switch_ops b53_switch_ops = { 2174 .get_tag_protocol = b53_get_tag_protocol, 2175 .setup = b53_setup, 2176 .teardown = b53_teardown, 2177 .get_strings = b53_get_strings, 2178 .get_ethtool_stats = b53_get_ethtool_stats, 2179 .get_sset_count = b53_get_sset_count, 2180 .get_ethtool_phy_stats = b53_get_ethtool_phy_stats, 2181 .phy_read = b53_phy_read16, 2182 .phy_write = b53_phy_write16, 2183 .adjust_link = b53_adjust_link, 2184 .phylink_validate = b53_phylink_validate, 2185 .phylink_mac_link_state = b53_phylink_mac_link_state, 2186 .phylink_mac_config = b53_phylink_mac_config, 2187 .phylink_mac_an_restart = b53_phylink_mac_an_restart, 2188 .phylink_mac_link_down = b53_phylink_mac_link_down, 2189 .phylink_mac_link_up = b53_phylink_mac_link_up, 2190 .port_enable = b53_enable_port, 2191 .port_disable = b53_disable_port, 2192 .get_mac_eee = b53_get_mac_eee, 2193 .set_mac_eee = b53_set_mac_eee, 2194 .port_bridge_join = b53_br_join, 2195 .port_bridge_leave = b53_br_leave, 2196 .port_stp_state_set = b53_br_set_stp_state, 2197 .port_fast_age = b53_br_fast_age, 2198 .port_egress_floods = b53_br_egress_floods, 2199 .port_vlan_filtering = b53_vlan_filtering, 2200 .port_vlan_prepare = b53_vlan_prepare, 2201 .port_vlan_add = b53_vlan_add, 2202 .port_vlan_del = b53_vlan_del, 2203 .port_fdb_dump = b53_fdb_dump, 2204 .port_fdb_add = b53_fdb_add, 2205 .port_fdb_del = b53_fdb_del, 2206 .port_mirror_add = b53_mirror_add, 2207 .port_mirror_del = b53_mirror_del, 2208 .port_mdb_prepare = b53_mdb_prepare, 2209 .port_mdb_add = b53_mdb_add, 2210 .port_mdb_del = b53_mdb_del, 2211 .port_max_mtu = b53_get_max_mtu, 2212 .port_change_mtu = b53_change_mtu, 2213 }; 2214 2215 struct b53_chip_data { 2216 u32 chip_id; 2217 const char *dev_name; 2218 u16 vlans; 2219 u16 enabled_ports; 2220 u8 cpu_port; 2221 u8 vta_regs[3]; 2222 u8 arl_bins; 2223 u16 arl_buckets; 2224 u8 duplex_reg; 2225 u8 jumbo_pm_reg; 2226 u8 jumbo_size_reg; 2227 }; 2228 2229 #define B53_VTA_REGS \ 2230 { B53_VT_ACCESS, B53_VT_INDEX, B53_VT_ENTRY } 2231 #define B53_VTA_REGS_9798 \ 2232 { B53_VT_ACCESS_9798, B53_VT_INDEX_9798, B53_VT_ENTRY_9798 } 2233 #define B53_VTA_REGS_63XX \ 2234 { B53_VT_ACCESS_63XX, B53_VT_INDEX_63XX, B53_VT_ENTRY_63XX } 2235 2236 static const struct b53_chip_data b53_switch_chips[] = { 2237 { 2238 .chip_id = BCM5325_DEVICE_ID, 2239 .dev_name = "BCM5325", 2240 .vlans = 16, 2241 .enabled_ports = 0x1f, 2242 .arl_bins = 2, 2243 .arl_buckets = 1024, 2244 .cpu_port = B53_CPU_PORT_25, 2245 .duplex_reg = B53_DUPLEX_STAT_FE, 2246 }, 2247 { 2248 .chip_id = BCM5365_DEVICE_ID, 2249 .dev_name = "BCM5365", 2250 .vlans = 256, 2251 .enabled_ports = 0x1f, 2252 .arl_bins = 2, 2253 .arl_buckets = 1024, 2254 .cpu_port = B53_CPU_PORT_25, 2255 .duplex_reg = B53_DUPLEX_STAT_FE, 2256 }, 2257 { 2258 .chip_id = BCM5389_DEVICE_ID, 2259 .dev_name = "BCM5389", 2260 .vlans = 4096, 2261 .enabled_ports = 0x1f, 2262 .arl_bins = 4, 2263 .arl_buckets = 1024, 2264 .cpu_port = B53_CPU_PORT, 2265 .vta_regs = B53_VTA_REGS, 2266 .duplex_reg = B53_DUPLEX_STAT_GE, 2267 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2268 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2269 }, 2270 { 2271 .chip_id = BCM5395_DEVICE_ID, 2272 .dev_name = "BCM5395", 2273 .vlans = 4096, 2274 .enabled_ports = 0x1f, 2275 .arl_bins = 4, 2276 .arl_buckets = 1024, 2277 .cpu_port = B53_CPU_PORT, 2278 .vta_regs = B53_VTA_REGS, 2279 .duplex_reg = B53_DUPLEX_STAT_GE, 2280 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2281 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2282 }, 2283 { 2284 .chip_id = BCM5397_DEVICE_ID, 2285 .dev_name = "BCM5397", 2286 .vlans = 4096, 2287 .enabled_ports = 0x1f, 2288 .arl_bins = 4, 2289 .arl_buckets = 1024, 2290 .cpu_port = B53_CPU_PORT, 2291 .vta_regs = B53_VTA_REGS_9798, 2292 .duplex_reg = B53_DUPLEX_STAT_GE, 2293 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2294 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2295 }, 2296 { 2297 .chip_id = BCM5398_DEVICE_ID, 2298 .dev_name = "BCM5398", 2299 .vlans = 4096, 2300 .enabled_ports = 0x7f, 2301 .arl_bins = 4, 2302 .arl_buckets = 1024, 2303 .cpu_port = B53_CPU_PORT, 2304 .vta_regs = B53_VTA_REGS_9798, 2305 .duplex_reg = B53_DUPLEX_STAT_GE, 2306 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2307 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2308 }, 2309 { 2310 .chip_id = BCM53115_DEVICE_ID, 2311 .dev_name = "BCM53115", 2312 .vlans = 4096, 2313 .enabled_ports = 0x1f, 2314 .arl_bins = 4, 2315 .arl_buckets = 1024, 2316 .vta_regs = B53_VTA_REGS, 2317 .cpu_port = B53_CPU_PORT, 2318 .duplex_reg = B53_DUPLEX_STAT_GE, 2319 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2320 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2321 }, 2322 { 2323 .chip_id = BCM53125_DEVICE_ID, 2324 .dev_name = "BCM53125", 2325 .vlans = 4096, 2326 .enabled_ports = 0xff, 2327 .arl_bins = 4, 2328 .arl_buckets = 1024, 2329 .cpu_port = B53_CPU_PORT, 2330 .vta_regs = B53_VTA_REGS, 2331 .duplex_reg = B53_DUPLEX_STAT_GE, 2332 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2333 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2334 }, 2335 { 2336 .chip_id = BCM53128_DEVICE_ID, 2337 .dev_name = "BCM53128", 2338 .vlans = 4096, 2339 .enabled_ports = 0x1ff, 2340 .arl_bins = 4, 2341 .arl_buckets = 1024, 2342 .cpu_port = B53_CPU_PORT, 2343 .vta_regs = B53_VTA_REGS, 2344 .duplex_reg = B53_DUPLEX_STAT_GE, 2345 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2346 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2347 }, 2348 { 2349 .chip_id = BCM63XX_DEVICE_ID, 2350 .dev_name = "BCM63xx", 2351 .vlans = 4096, 2352 .enabled_ports = 0, /* pdata must provide them */ 2353 .arl_bins = 4, 2354 .arl_buckets = 1024, 2355 .cpu_port = B53_CPU_PORT, 2356 .vta_regs = B53_VTA_REGS_63XX, 2357 .duplex_reg = B53_DUPLEX_STAT_63XX, 2358 .jumbo_pm_reg = B53_JUMBO_PORT_MASK_63XX, 2359 .jumbo_size_reg = B53_JUMBO_MAX_SIZE_63XX, 2360 }, 2361 { 2362 .chip_id = BCM53010_DEVICE_ID, 2363 .dev_name = "BCM53010", 2364 .vlans = 4096, 2365 .enabled_ports = 0x1f, 2366 .arl_bins = 4, 2367 .arl_buckets = 1024, 2368 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ 2369 .vta_regs = B53_VTA_REGS, 2370 .duplex_reg = B53_DUPLEX_STAT_GE, 2371 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2372 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2373 }, 2374 { 2375 .chip_id = BCM53011_DEVICE_ID, 2376 .dev_name = "BCM53011", 2377 .vlans = 4096, 2378 .enabled_ports = 0x1bf, 2379 .arl_bins = 4, 2380 .arl_buckets = 1024, 2381 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ 2382 .vta_regs = B53_VTA_REGS, 2383 .duplex_reg = B53_DUPLEX_STAT_GE, 2384 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2385 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2386 }, 2387 { 2388 .chip_id = BCM53012_DEVICE_ID, 2389 .dev_name = "BCM53012", 2390 .vlans = 4096, 2391 .enabled_ports = 0x1bf, 2392 .arl_bins = 4, 2393 .arl_buckets = 1024, 2394 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ 2395 .vta_regs = B53_VTA_REGS, 2396 .duplex_reg = B53_DUPLEX_STAT_GE, 2397 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2398 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2399 }, 2400 { 2401 .chip_id = BCM53018_DEVICE_ID, 2402 .dev_name = "BCM53018", 2403 .vlans = 4096, 2404 .enabled_ports = 0x1f, 2405 .arl_bins = 4, 2406 .arl_buckets = 1024, 2407 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ 2408 .vta_regs = B53_VTA_REGS, 2409 .duplex_reg = B53_DUPLEX_STAT_GE, 2410 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2411 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2412 }, 2413 { 2414 .chip_id = BCM53019_DEVICE_ID, 2415 .dev_name = "BCM53019", 2416 .vlans = 4096, 2417 .enabled_ports = 0x1f, 2418 .arl_bins = 4, 2419 .arl_buckets = 1024, 2420 .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ 2421 .vta_regs = B53_VTA_REGS, 2422 .duplex_reg = B53_DUPLEX_STAT_GE, 2423 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2424 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2425 }, 2426 { 2427 .chip_id = BCM58XX_DEVICE_ID, 2428 .dev_name = "BCM585xx/586xx/88312", 2429 .vlans = 4096, 2430 .enabled_ports = 0x1ff, 2431 .arl_bins = 4, 2432 .arl_buckets = 1024, 2433 .cpu_port = B53_CPU_PORT, 2434 .vta_regs = B53_VTA_REGS, 2435 .duplex_reg = B53_DUPLEX_STAT_GE, 2436 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2437 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2438 }, 2439 { 2440 .chip_id = BCM583XX_DEVICE_ID, 2441 .dev_name = "BCM583xx/11360", 2442 .vlans = 4096, 2443 .enabled_ports = 0x103, 2444 .arl_bins = 4, 2445 .arl_buckets = 1024, 2446 .cpu_port = B53_CPU_PORT, 2447 .vta_regs = B53_VTA_REGS, 2448 .duplex_reg = B53_DUPLEX_STAT_GE, 2449 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2450 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2451 }, 2452 /* Starfighter 2 */ 2453 { 2454 .chip_id = BCM4908_DEVICE_ID, 2455 .dev_name = "BCM4908", 2456 .vlans = 4096, 2457 .enabled_ports = 0x1bf, 2458 .arl_bins = 4, 2459 .arl_buckets = 256, 2460 .cpu_port = 8, /* TODO: ports 4, 5, 8 */ 2461 .vta_regs = B53_VTA_REGS, 2462 .duplex_reg = B53_DUPLEX_STAT_GE, 2463 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2464 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2465 }, 2466 { 2467 .chip_id = BCM7445_DEVICE_ID, 2468 .dev_name = "BCM7445", 2469 .vlans = 4096, 2470 .enabled_ports = 0x1ff, 2471 .arl_bins = 4, 2472 .arl_buckets = 1024, 2473 .cpu_port = B53_CPU_PORT, 2474 .vta_regs = B53_VTA_REGS, 2475 .duplex_reg = B53_DUPLEX_STAT_GE, 2476 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2477 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2478 }, 2479 { 2480 .chip_id = BCM7278_DEVICE_ID, 2481 .dev_name = "BCM7278", 2482 .vlans = 4096, 2483 .enabled_ports = 0x1ff, 2484 .arl_bins = 4, 2485 .arl_buckets = 256, 2486 .cpu_port = B53_CPU_PORT, 2487 .vta_regs = B53_VTA_REGS, 2488 .duplex_reg = B53_DUPLEX_STAT_GE, 2489 .jumbo_pm_reg = B53_JUMBO_PORT_MASK, 2490 .jumbo_size_reg = B53_JUMBO_MAX_SIZE, 2491 }, 2492 }; 2493 2494 static int b53_switch_init(struct b53_device *dev) 2495 { 2496 unsigned int i; 2497 int ret; 2498 2499 for (i = 0; i < ARRAY_SIZE(b53_switch_chips); i++) { 2500 const struct b53_chip_data *chip = &b53_switch_chips[i]; 2501 2502 if (chip->chip_id == dev->chip_id) { 2503 if (!dev->enabled_ports) 2504 dev->enabled_ports = chip->enabled_ports; 2505 dev->name = chip->dev_name; 2506 dev->duplex_reg = chip->duplex_reg; 2507 dev->vta_regs[0] = chip->vta_regs[0]; 2508 dev->vta_regs[1] = chip->vta_regs[1]; 2509 dev->vta_regs[2] = chip->vta_regs[2]; 2510 dev->jumbo_pm_reg = chip->jumbo_pm_reg; 2511 dev->cpu_port = chip->cpu_port; 2512 dev->num_vlans = chip->vlans; 2513 dev->num_arl_bins = chip->arl_bins; 2514 dev->num_arl_buckets = chip->arl_buckets; 2515 break; 2516 } 2517 } 2518 2519 /* check which BCM5325x version we have */ 2520 if (is5325(dev)) { 2521 u8 vc4; 2522 2523 b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4); 2524 2525 /* check reserved bits */ 2526 switch (vc4 & 3) { 2527 case 1: 2528 /* BCM5325E */ 2529 break; 2530 case 3: 2531 /* BCM5325F - do not use port 4 */ 2532 dev->enabled_ports &= ~BIT(4); 2533 break; 2534 default: 2535 /* On the BCM47XX SoCs this is the supported internal switch.*/ 2536 #ifndef CONFIG_BCM47XX 2537 /* BCM5325M */ 2538 return -EINVAL; 2539 #else 2540 break; 2541 #endif 2542 } 2543 } else if (dev->chip_id == BCM53115_DEVICE_ID) { 2544 u64 strap_value; 2545 2546 b53_read48(dev, B53_STAT_PAGE, B53_STRAP_VALUE, &strap_value); 2547 /* use second IMP port if GMII is enabled */ 2548 if (strap_value & SV_GMII_CTRL_115) 2549 dev->cpu_port = 5; 2550 } 2551 2552 /* cpu port is always last */ 2553 dev->num_ports = dev->cpu_port + 1; 2554 dev->enabled_ports |= BIT(dev->cpu_port); 2555 2556 /* Include non standard CPU port built-in PHYs to be probed */ 2557 if (is539x(dev) || is531x5(dev)) { 2558 for (i = 0; i < dev->num_ports; i++) { 2559 if (!(dev->ds->phys_mii_mask & BIT(i)) && 2560 !b53_possible_cpu_port(dev->ds, i)) 2561 dev->ds->phys_mii_mask |= BIT(i); 2562 } 2563 } 2564 2565 dev->ports = devm_kcalloc(dev->dev, 2566 dev->num_ports, sizeof(struct b53_port), 2567 GFP_KERNEL); 2568 if (!dev->ports) 2569 return -ENOMEM; 2570 2571 dev->vlans = devm_kcalloc(dev->dev, 2572 dev->num_vlans, sizeof(struct b53_vlan), 2573 GFP_KERNEL); 2574 if (!dev->vlans) 2575 return -ENOMEM; 2576 2577 dev->reset_gpio = b53_switch_get_reset_gpio(dev); 2578 if (dev->reset_gpio >= 0) { 2579 ret = devm_gpio_request_one(dev->dev, dev->reset_gpio, 2580 GPIOF_OUT_INIT_HIGH, "robo_reset"); 2581 if (ret) 2582 return ret; 2583 } 2584 2585 return 0; 2586 } 2587 2588 struct b53_device *b53_switch_alloc(struct device *base, 2589 const struct b53_io_ops *ops, 2590 void *priv) 2591 { 2592 struct dsa_switch *ds; 2593 struct b53_device *dev; 2594 2595 ds = devm_kzalloc(base, sizeof(*ds), GFP_KERNEL); 2596 if (!ds) 2597 return NULL; 2598 2599 ds->dev = base; 2600 ds->num_ports = DSA_MAX_PORTS; 2601 2602 dev = devm_kzalloc(base, sizeof(*dev), GFP_KERNEL); 2603 if (!dev) 2604 return NULL; 2605 2606 ds->priv = dev; 2607 dev->dev = base; 2608 2609 dev->ds = ds; 2610 dev->priv = priv; 2611 dev->ops = ops; 2612 ds->ops = &b53_switch_ops; 2613 ds->configure_vlan_while_not_filtering = true; 2614 ds->untag_bridge_pvid = true; 2615 dev->vlan_enabled = ds->configure_vlan_while_not_filtering; 2616 mutex_init(&dev->reg_mutex); 2617 mutex_init(&dev->stats_mutex); 2618 2619 return dev; 2620 } 2621 EXPORT_SYMBOL(b53_switch_alloc); 2622 2623 int b53_switch_detect(struct b53_device *dev) 2624 { 2625 u32 id32; 2626 u16 tmp; 2627 u8 id8; 2628 int ret; 2629 2630 ret = b53_read8(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id8); 2631 if (ret) 2632 return ret; 2633 2634 switch (id8) { 2635 case 0: 2636 /* BCM5325 and BCM5365 do not have this register so reads 2637 * return 0. But the read operation did succeed, so assume this 2638 * is one of them. 2639 * 2640 * Next check if we can write to the 5325's VTA register; for 2641 * 5365 it is read only. 2642 */ 2643 b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, 0xf); 2644 b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, &tmp); 2645 2646 if (tmp == 0xf) 2647 dev->chip_id = BCM5325_DEVICE_ID; 2648 else 2649 dev->chip_id = BCM5365_DEVICE_ID; 2650 break; 2651 case BCM5389_DEVICE_ID: 2652 case BCM5395_DEVICE_ID: 2653 case BCM5397_DEVICE_ID: 2654 case BCM5398_DEVICE_ID: 2655 dev->chip_id = id8; 2656 break; 2657 default: 2658 ret = b53_read32(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id32); 2659 if (ret) 2660 return ret; 2661 2662 switch (id32) { 2663 case BCM53115_DEVICE_ID: 2664 case BCM53125_DEVICE_ID: 2665 case BCM53128_DEVICE_ID: 2666 case BCM53010_DEVICE_ID: 2667 case BCM53011_DEVICE_ID: 2668 case BCM53012_DEVICE_ID: 2669 case BCM53018_DEVICE_ID: 2670 case BCM53019_DEVICE_ID: 2671 dev->chip_id = id32; 2672 break; 2673 default: 2674 dev_err(dev->dev, 2675 "unsupported switch detected (BCM53%02x/BCM%x)\n", 2676 id8, id32); 2677 return -ENODEV; 2678 } 2679 } 2680 2681 if (dev->chip_id == BCM5325_DEVICE_ID) 2682 return b53_read8(dev, B53_STAT_PAGE, B53_REV_ID_25, 2683 &dev->core_rev); 2684 else 2685 return b53_read8(dev, B53_MGMT_PAGE, B53_REV_ID, 2686 &dev->core_rev); 2687 } 2688 EXPORT_SYMBOL(b53_switch_detect); 2689 2690 int b53_switch_register(struct b53_device *dev) 2691 { 2692 int ret; 2693 2694 if (dev->pdata) { 2695 dev->chip_id = dev->pdata->chip_id; 2696 dev->enabled_ports = dev->pdata->enabled_ports; 2697 } 2698 2699 if (!dev->chip_id && b53_switch_detect(dev)) 2700 return -EINVAL; 2701 2702 ret = b53_switch_init(dev); 2703 if (ret) 2704 return ret; 2705 2706 dev_info(dev->dev, "found switch: %s, rev %i\n", 2707 dev->name, dev->core_rev); 2708 2709 return dsa_register_switch(dev->ds); 2710 } 2711 EXPORT_SYMBOL(b53_switch_register); 2712 2713 MODULE_AUTHOR("Jonas Gorski <[email protected]>"); 2714 MODULE_DESCRIPTION("B53 switch library"); 2715 MODULE_LICENSE("Dual BSD/GPL"); 2716