1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (c) 2014 Broadcom Corporation 4 */ 5 #include <linux/kernel.h> 6 #include <linux/delay.h> 7 #include <linux/list.h> 8 #include <linux/ssb/ssb_regs.h> 9 #include <linux/bcma/bcma.h> 10 #include <linux/bcma/bcma_regs.h> 11 12 #include <defs.h> 13 #include <soc.h> 14 #include <brcm_hw_ids.h> 15 #include <brcmu_utils.h> 16 #include <chipcommon.h> 17 #include "debug.h" 18 #include "chip.h" 19 20 /* SOC Interconnect types (aka chip types) */ 21 #define SOCI_SB 0 22 #define SOCI_AI 1 23 24 /* PL-368 DMP definitions */ 25 #define DMP_DESC_TYPE_MSK 0x0000000F 26 #define DMP_DESC_EMPTY 0x00000000 27 #define DMP_DESC_VALID 0x00000001 28 #define DMP_DESC_COMPONENT 0x00000001 29 #define DMP_DESC_MASTER_PORT 0x00000003 30 #define DMP_DESC_ADDRESS 0x00000005 31 #define DMP_DESC_ADDRSIZE_GT32 0x00000008 32 #define DMP_DESC_EOT 0x0000000F 33 34 #define DMP_COMP_DESIGNER 0xFFF00000 35 #define DMP_COMP_DESIGNER_S 20 36 #define DMP_COMP_PARTNUM 0x000FFF00 37 #define DMP_COMP_PARTNUM_S 8 38 #define DMP_COMP_CLASS 0x000000F0 39 #define DMP_COMP_CLASS_S 4 40 #define DMP_COMP_REVISION 0xFF000000 41 #define DMP_COMP_REVISION_S 24 42 #define DMP_COMP_NUM_SWRAP 0x00F80000 43 #define DMP_COMP_NUM_SWRAP_S 19 44 #define DMP_COMP_NUM_MWRAP 0x0007C000 45 #define DMP_COMP_NUM_MWRAP_S 14 46 #define DMP_COMP_NUM_SPORT 0x00003E00 47 #define DMP_COMP_NUM_SPORT_S 9 48 #define DMP_COMP_NUM_MPORT 0x000001F0 49 #define DMP_COMP_NUM_MPORT_S 4 50 51 #define DMP_MASTER_PORT_UID 0x0000FF00 52 #define DMP_MASTER_PORT_UID_S 8 53 #define DMP_MASTER_PORT_NUM 0x000000F0 54 #define DMP_MASTER_PORT_NUM_S 4 55 56 #define DMP_SLAVE_ADDR_BASE 0xFFFFF000 57 #define DMP_SLAVE_ADDR_BASE_S 12 58 #define DMP_SLAVE_PORT_NUM 0x00000F00 59 #define DMP_SLAVE_PORT_NUM_S 8 60 #define DMP_SLAVE_TYPE 0x000000C0 61 #define DMP_SLAVE_TYPE_S 6 62 #define DMP_SLAVE_TYPE_SLAVE 0 63 #define DMP_SLAVE_TYPE_BRIDGE 1 64 #define DMP_SLAVE_TYPE_SWRAP 2 65 #define DMP_SLAVE_TYPE_MWRAP 3 66 #define DMP_SLAVE_SIZE_TYPE 0x00000030 67 #define DMP_SLAVE_SIZE_TYPE_S 4 68 #define DMP_SLAVE_SIZE_4K 0 69 #define DMP_SLAVE_SIZE_8K 1 70 #define DMP_SLAVE_SIZE_16K 2 71 #define DMP_SLAVE_SIZE_DESC 3 72 73 /* EROM CompIdentB */ 74 #define CIB_REV_MASK 0xff000000 75 #define CIB_REV_SHIFT 24 76 77 /* ARM CR4 core specific control flag bits */ 78 #define ARMCR4_BCMA_IOCTL_CPUHALT 0x0020 79 80 /* D11 core specific control flag bits */ 81 #define D11_BCMA_IOCTL_PHYCLOCKEN 0x0004 82 #define D11_BCMA_IOCTL_PHYRESET 0x0008 83 84 /* chip core base & ramsize */ 85 /* bcm4329 */ 86 /* SDIO device core, ID 0x829 */ 87 #define BCM4329_CORE_BUS_BASE 0x18011000 88 /* internal memory core, ID 0x80e */ 89 #define BCM4329_CORE_SOCRAM_BASE 0x18003000 90 /* ARM Cortex M3 core, ID 0x82a */ 91 #define BCM4329_CORE_ARM_BASE 0x18002000 92 93 /* Max possibly supported memory size (limited by IO mapped memory) */ 94 #define BRCMF_CHIP_MAX_MEMSIZE (4 * 1024 * 1024) 95 96 #define CORE_SB(base, field) \ 97 (base + SBCONFIGOFF + offsetof(struct sbconfig, field)) 98 #define SBCOREREV(sbidh) \ 99 ((((sbidh) & SSB_IDHIGH_RCHI) >> SSB_IDHIGH_RCHI_SHIFT) | \ 100 ((sbidh) & SSB_IDHIGH_RCLO)) 101 102 struct sbconfig { 103 u32 PAD[2]; 104 u32 sbipsflag; /* initiator port ocp slave flag */ 105 u32 PAD[3]; 106 u32 sbtpsflag; /* target port ocp slave flag */ 107 u32 PAD[11]; 108 u32 sbtmerrloga; /* (sonics >= 2.3) */ 109 u32 PAD; 110 u32 sbtmerrlog; /* (sonics >= 2.3) */ 111 u32 PAD[3]; 112 u32 sbadmatch3; /* address match3 */ 113 u32 PAD; 114 u32 sbadmatch2; /* address match2 */ 115 u32 PAD; 116 u32 sbadmatch1; /* address match1 */ 117 u32 PAD[7]; 118 u32 sbimstate; /* initiator agent state */ 119 u32 sbintvec; /* interrupt mask */ 120 u32 sbtmstatelow; /* target state */ 121 u32 sbtmstatehigh; /* target state */ 122 u32 sbbwa0; /* bandwidth allocation table0 */ 123 u32 PAD; 124 u32 sbimconfiglow; /* initiator configuration */ 125 u32 sbimconfighigh; /* initiator configuration */ 126 u32 sbadmatch0; /* address match0 */ 127 u32 PAD; 128 u32 sbtmconfiglow; /* target configuration */ 129 u32 sbtmconfighigh; /* target configuration */ 130 u32 sbbconfig; /* broadcast configuration */ 131 u32 PAD; 132 u32 sbbstate; /* broadcast state */ 133 u32 PAD[3]; 134 u32 sbactcnfg; /* activate configuration */ 135 u32 PAD[3]; 136 u32 sbflagst; /* current sbflags */ 137 u32 PAD[3]; 138 u32 sbidlow; /* identification */ 139 u32 sbidhigh; /* identification */ 140 }; 141 142 /* bankidx and bankinfo reg defines corerev >= 8 */ 143 #define SOCRAM_BANKINFO_RETNTRAM_MASK 0x00010000 144 #define SOCRAM_BANKINFO_SZMASK 0x0000007f 145 #define SOCRAM_BANKIDX_ROM_MASK 0x00000100 146 147 #define SOCRAM_BANKIDX_MEMTYPE_SHIFT 8 148 /* socram bankinfo memtype */ 149 #define SOCRAM_MEMTYPE_RAM 0 150 #define SOCRAM_MEMTYPE_R0M 1 151 #define SOCRAM_MEMTYPE_DEVRAM 2 152 153 #define SOCRAM_BANKINFO_SZBASE 8192 154 #define SRCI_LSS_MASK 0x00f00000 155 #define SRCI_LSS_SHIFT 20 156 #define SRCI_SRNB_MASK 0xf0 157 #define SRCI_SRNB_MASK_EXT 0x100 158 #define SRCI_SRNB_SHIFT 4 159 #define SRCI_SRBSZ_MASK 0xf 160 #define SRCI_SRBSZ_SHIFT 0 161 #define SR_BSZ_BASE 14 162 163 struct sbsocramregs { 164 u32 coreinfo; 165 u32 bwalloc; 166 u32 extracoreinfo; 167 u32 biststat; 168 u32 bankidx; 169 u32 standbyctrl; 170 171 u32 errlogstatus; /* rev 6 */ 172 u32 errlogaddr; /* rev 6 */ 173 /* used for patching rev 3 & 5 */ 174 u32 cambankidx; 175 u32 cambankstandbyctrl; 176 u32 cambankpatchctrl; 177 u32 cambankpatchtblbaseaddr; 178 u32 cambankcmdreg; 179 u32 cambankdatareg; 180 u32 cambankmaskreg; 181 u32 PAD[1]; 182 u32 bankinfo; /* corev 8 */ 183 u32 bankpda; 184 u32 PAD[14]; 185 u32 extmemconfig; 186 u32 extmemparitycsr; 187 u32 extmemparityerrdata; 188 u32 extmemparityerrcnt; 189 u32 extmemwrctrlandsize; 190 u32 PAD[84]; 191 u32 workaround; 192 u32 pwrctl; /* corerev >= 2 */ 193 u32 PAD[133]; 194 u32 sr_control; /* corerev >= 15 */ 195 u32 sr_status; /* corerev >= 15 */ 196 u32 sr_address; /* corerev >= 15 */ 197 u32 sr_data; /* corerev >= 15 */ 198 }; 199 200 #define SOCRAMREGOFFS(_f) offsetof(struct sbsocramregs, _f) 201 #define SYSMEMREGOFFS(_f) offsetof(struct sbsocramregs, _f) 202 203 #define ARMCR4_CAP (0x04) 204 #define ARMCR4_BANKIDX (0x40) 205 #define ARMCR4_BANKINFO (0x44) 206 #define ARMCR4_BANKPDA (0x4C) 207 208 #define ARMCR4_TCBBNB_MASK 0xf0 209 #define ARMCR4_TCBBNB_SHIFT 4 210 #define ARMCR4_TCBANB_MASK 0xf 211 #define ARMCR4_TCBANB_SHIFT 0 212 213 #define ARMCR4_BSZ_MASK 0x3f 214 #define ARMCR4_BSZ_MULT 8192 215 216 struct brcmf_core_priv { 217 struct brcmf_core pub; 218 u32 wrapbase; 219 struct list_head list; 220 struct brcmf_chip_priv *chip; 221 }; 222 223 struct brcmf_chip_priv { 224 struct brcmf_chip pub; 225 const struct brcmf_buscore_ops *ops; 226 void *ctx; 227 /* assured first core is chipcommon, second core is buscore */ 228 struct list_head cores; 229 u16 num_cores; 230 231 bool (*iscoreup)(struct brcmf_core_priv *core); 232 void (*coredisable)(struct brcmf_core_priv *core, u32 prereset, 233 u32 reset); 234 void (*resetcore)(struct brcmf_core_priv *core, u32 prereset, u32 reset, 235 u32 postreset); 236 }; 237 238 static void brcmf_chip_sb_corerev(struct brcmf_chip_priv *ci, 239 struct brcmf_core *core) 240 { 241 u32 regdata; 242 243 regdata = ci->ops->read32(ci->ctx, CORE_SB(core->base, sbidhigh)); 244 core->rev = SBCOREREV(regdata); 245 } 246 247 static bool brcmf_chip_sb_iscoreup(struct brcmf_core_priv *core) 248 { 249 struct brcmf_chip_priv *ci; 250 u32 regdata; 251 u32 address; 252 253 ci = core->chip; 254 address = CORE_SB(core->pub.base, sbtmstatelow); 255 regdata = ci->ops->read32(ci->ctx, address); 256 regdata &= (SSB_TMSLOW_RESET | SSB_TMSLOW_REJECT | 257 SSB_IMSTATE_REJECT | SSB_TMSLOW_CLOCK); 258 return SSB_TMSLOW_CLOCK == regdata; 259 } 260 261 static bool brcmf_chip_ai_iscoreup(struct brcmf_core_priv *core) 262 { 263 struct brcmf_chip_priv *ci; 264 u32 regdata; 265 bool ret; 266 267 ci = core->chip; 268 regdata = ci->ops->read32(ci->ctx, core->wrapbase + BCMA_IOCTL); 269 ret = (regdata & (BCMA_IOCTL_FGC | BCMA_IOCTL_CLK)) == BCMA_IOCTL_CLK; 270 271 regdata = ci->ops->read32(ci->ctx, core->wrapbase + BCMA_RESET_CTL); 272 ret = ret && ((regdata & BCMA_RESET_CTL_RESET) == 0); 273 274 return ret; 275 } 276 277 static void brcmf_chip_sb_coredisable(struct brcmf_core_priv *core, 278 u32 prereset, u32 reset) 279 { 280 struct brcmf_chip_priv *ci; 281 u32 val, base; 282 283 ci = core->chip; 284 base = core->pub.base; 285 val = ci->ops->read32(ci->ctx, CORE_SB(base, sbtmstatelow)); 286 if (val & SSB_TMSLOW_RESET) 287 return; 288 289 val = ci->ops->read32(ci->ctx, CORE_SB(base, sbtmstatelow)); 290 if ((val & SSB_TMSLOW_CLOCK) != 0) { 291 /* 292 * set target reject and spin until busy is clear 293 * (preserve core-specific bits) 294 */ 295 val = ci->ops->read32(ci->ctx, CORE_SB(base, sbtmstatelow)); 296 ci->ops->write32(ci->ctx, CORE_SB(base, sbtmstatelow), 297 val | SSB_TMSLOW_REJECT); 298 299 val = ci->ops->read32(ci->ctx, CORE_SB(base, sbtmstatelow)); 300 udelay(1); 301 SPINWAIT((ci->ops->read32(ci->ctx, CORE_SB(base, sbtmstatehigh)) 302 & SSB_TMSHIGH_BUSY), 100000); 303 304 val = ci->ops->read32(ci->ctx, CORE_SB(base, sbtmstatehigh)); 305 if (val & SSB_TMSHIGH_BUSY) 306 brcmf_err("core state still busy\n"); 307 308 val = ci->ops->read32(ci->ctx, CORE_SB(base, sbidlow)); 309 if (val & SSB_IDLOW_INITIATOR) { 310 val = ci->ops->read32(ci->ctx, 311 CORE_SB(base, sbimstate)); 312 val |= SSB_IMSTATE_REJECT; 313 ci->ops->write32(ci->ctx, 314 CORE_SB(base, sbimstate), val); 315 val = ci->ops->read32(ci->ctx, 316 CORE_SB(base, sbimstate)); 317 udelay(1); 318 SPINWAIT((ci->ops->read32(ci->ctx, 319 CORE_SB(base, sbimstate)) & 320 SSB_IMSTATE_BUSY), 100000); 321 } 322 323 /* set reset and reject while enabling the clocks */ 324 val = SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK | 325 SSB_TMSLOW_REJECT | SSB_TMSLOW_RESET; 326 ci->ops->write32(ci->ctx, CORE_SB(base, sbtmstatelow), val); 327 val = ci->ops->read32(ci->ctx, CORE_SB(base, sbtmstatelow)); 328 udelay(10); 329 330 /* clear the initiator reject bit */ 331 val = ci->ops->read32(ci->ctx, CORE_SB(base, sbidlow)); 332 if (val & SSB_IDLOW_INITIATOR) { 333 val = ci->ops->read32(ci->ctx, 334 CORE_SB(base, sbimstate)); 335 val &= ~SSB_IMSTATE_REJECT; 336 ci->ops->write32(ci->ctx, 337 CORE_SB(base, sbimstate), val); 338 } 339 } 340 341 /* leave reset and reject asserted */ 342 ci->ops->write32(ci->ctx, CORE_SB(base, sbtmstatelow), 343 (SSB_TMSLOW_REJECT | SSB_TMSLOW_RESET)); 344 udelay(1); 345 } 346 347 static void brcmf_chip_ai_coredisable(struct brcmf_core_priv *core, 348 u32 prereset, u32 reset) 349 { 350 struct brcmf_chip_priv *ci; 351 u32 regdata; 352 353 ci = core->chip; 354 355 /* if core is already in reset, skip reset */ 356 regdata = ci->ops->read32(ci->ctx, core->wrapbase + BCMA_RESET_CTL); 357 if ((regdata & BCMA_RESET_CTL_RESET) != 0) 358 goto in_reset_configure; 359 360 /* configure reset */ 361 ci->ops->write32(ci->ctx, core->wrapbase + BCMA_IOCTL, 362 prereset | BCMA_IOCTL_FGC | BCMA_IOCTL_CLK); 363 ci->ops->read32(ci->ctx, core->wrapbase + BCMA_IOCTL); 364 365 /* put in reset */ 366 ci->ops->write32(ci->ctx, core->wrapbase + BCMA_RESET_CTL, 367 BCMA_RESET_CTL_RESET); 368 usleep_range(10, 20); 369 370 /* wait till reset is 1 */ 371 SPINWAIT(ci->ops->read32(ci->ctx, core->wrapbase + BCMA_RESET_CTL) != 372 BCMA_RESET_CTL_RESET, 300); 373 374 in_reset_configure: 375 /* in-reset configure */ 376 ci->ops->write32(ci->ctx, core->wrapbase + BCMA_IOCTL, 377 reset | BCMA_IOCTL_FGC | BCMA_IOCTL_CLK); 378 ci->ops->read32(ci->ctx, core->wrapbase + BCMA_IOCTL); 379 } 380 381 static void brcmf_chip_sb_resetcore(struct brcmf_core_priv *core, u32 prereset, 382 u32 reset, u32 postreset) 383 { 384 struct brcmf_chip_priv *ci; 385 u32 regdata; 386 u32 base; 387 388 ci = core->chip; 389 base = core->pub.base; 390 /* 391 * Must do the disable sequence first to work for 392 * arbitrary current core state. 393 */ 394 brcmf_chip_sb_coredisable(core, 0, 0); 395 396 /* 397 * Now do the initialization sequence. 398 * set reset while enabling the clock and 399 * forcing them on throughout the core 400 */ 401 ci->ops->write32(ci->ctx, CORE_SB(base, sbtmstatelow), 402 SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK | 403 SSB_TMSLOW_RESET); 404 regdata = ci->ops->read32(ci->ctx, CORE_SB(base, sbtmstatelow)); 405 udelay(1); 406 407 /* clear any serror */ 408 regdata = ci->ops->read32(ci->ctx, CORE_SB(base, sbtmstatehigh)); 409 if (regdata & SSB_TMSHIGH_SERR) 410 ci->ops->write32(ci->ctx, CORE_SB(base, sbtmstatehigh), 0); 411 412 regdata = ci->ops->read32(ci->ctx, CORE_SB(base, sbimstate)); 413 if (regdata & (SSB_IMSTATE_IBE | SSB_IMSTATE_TO)) { 414 regdata &= ~(SSB_IMSTATE_IBE | SSB_IMSTATE_TO); 415 ci->ops->write32(ci->ctx, CORE_SB(base, sbimstate), regdata); 416 } 417 418 /* clear reset and allow it to propagate throughout the core */ 419 ci->ops->write32(ci->ctx, CORE_SB(base, sbtmstatelow), 420 SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK); 421 regdata = ci->ops->read32(ci->ctx, CORE_SB(base, sbtmstatelow)); 422 udelay(1); 423 424 /* leave clock enabled */ 425 ci->ops->write32(ci->ctx, CORE_SB(base, sbtmstatelow), 426 SSB_TMSLOW_CLOCK); 427 regdata = ci->ops->read32(ci->ctx, CORE_SB(base, sbtmstatelow)); 428 udelay(1); 429 } 430 431 static void brcmf_chip_ai_resetcore(struct brcmf_core_priv *core, u32 prereset, 432 u32 reset, u32 postreset) 433 { 434 struct brcmf_chip_priv *ci; 435 int count; 436 437 ci = core->chip; 438 439 /* must disable first to work for arbitrary current core state */ 440 brcmf_chip_ai_coredisable(core, prereset, reset); 441 442 count = 0; 443 while (ci->ops->read32(ci->ctx, core->wrapbase + BCMA_RESET_CTL) & 444 BCMA_RESET_CTL_RESET) { 445 ci->ops->write32(ci->ctx, core->wrapbase + BCMA_RESET_CTL, 0); 446 count++; 447 if (count > 50) 448 break; 449 usleep_range(40, 60); 450 } 451 452 ci->ops->write32(ci->ctx, core->wrapbase + BCMA_IOCTL, 453 postreset | BCMA_IOCTL_CLK); 454 ci->ops->read32(ci->ctx, core->wrapbase + BCMA_IOCTL); 455 } 456 457 char *brcmf_chip_name(u32 id, u32 rev, char *buf, uint len) 458 { 459 const char *fmt; 460 461 fmt = ((id > 0xa000) || (id < 0x4000)) ? "BCM%d/%u" : "BCM%x/%u"; 462 snprintf(buf, len, fmt, id, rev); 463 return buf; 464 } 465 466 static struct brcmf_core *brcmf_chip_add_core(struct brcmf_chip_priv *ci, 467 u16 coreid, u32 base, 468 u32 wrapbase) 469 { 470 struct brcmf_core_priv *core; 471 472 core = kzalloc(sizeof(*core), GFP_KERNEL); 473 if (!core) 474 return ERR_PTR(-ENOMEM); 475 476 core->pub.id = coreid; 477 core->pub.base = base; 478 core->chip = ci; 479 core->wrapbase = wrapbase; 480 481 list_add_tail(&core->list, &ci->cores); 482 return &core->pub; 483 } 484 485 /* safety check for chipinfo */ 486 static int brcmf_chip_cores_check(struct brcmf_chip_priv *ci) 487 { 488 struct brcmf_core_priv *core; 489 bool need_socram = false; 490 bool has_socram = false; 491 bool cpu_found = false; 492 int idx = 1; 493 494 list_for_each_entry(core, &ci->cores, list) { 495 brcmf_dbg(INFO, " [%-2d] core 0x%x:%-2d base 0x%08x wrap 0x%08x\n", 496 idx++, core->pub.id, core->pub.rev, core->pub.base, 497 core->wrapbase); 498 499 switch (core->pub.id) { 500 case BCMA_CORE_ARM_CM3: 501 cpu_found = true; 502 need_socram = true; 503 break; 504 case BCMA_CORE_INTERNAL_MEM: 505 has_socram = true; 506 break; 507 case BCMA_CORE_ARM_CR4: 508 cpu_found = true; 509 break; 510 case BCMA_CORE_ARM_CA7: 511 cpu_found = true; 512 break; 513 default: 514 break; 515 } 516 } 517 518 if (!cpu_found) { 519 brcmf_err("CPU core not detected\n"); 520 return -ENXIO; 521 } 522 /* check RAM core presence for ARM CM3 core */ 523 if (need_socram && !has_socram) { 524 brcmf_err("RAM core not provided with ARM CM3 core\n"); 525 return -ENODEV; 526 } 527 return 0; 528 } 529 530 static u32 brcmf_chip_core_read32(struct brcmf_core_priv *core, u16 reg) 531 { 532 return core->chip->ops->read32(core->chip->ctx, core->pub.base + reg); 533 } 534 535 static void brcmf_chip_core_write32(struct brcmf_core_priv *core, 536 u16 reg, u32 val) 537 { 538 core->chip->ops->write32(core->chip->ctx, core->pub.base + reg, val); 539 } 540 541 static bool brcmf_chip_socram_banksize(struct brcmf_core_priv *core, u8 idx, 542 u32 *banksize) 543 { 544 u32 bankinfo; 545 u32 bankidx = (SOCRAM_MEMTYPE_RAM << SOCRAM_BANKIDX_MEMTYPE_SHIFT); 546 547 bankidx |= idx; 548 brcmf_chip_core_write32(core, SOCRAMREGOFFS(bankidx), bankidx); 549 bankinfo = brcmf_chip_core_read32(core, SOCRAMREGOFFS(bankinfo)); 550 *banksize = (bankinfo & SOCRAM_BANKINFO_SZMASK) + 1; 551 *banksize *= SOCRAM_BANKINFO_SZBASE; 552 return !!(bankinfo & SOCRAM_BANKINFO_RETNTRAM_MASK); 553 } 554 555 static void brcmf_chip_socram_ramsize(struct brcmf_core_priv *sr, u32 *ramsize, 556 u32 *srsize) 557 { 558 u32 coreinfo; 559 uint nb, banksize, lss; 560 bool retent; 561 int i; 562 563 *ramsize = 0; 564 *srsize = 0; 565 566 if (WARN_ON(sr->pub.rev < 4)) 567 return; 568 569 if (!brcmf_chip_iscoreup(&sr->pub)) 570 brcmf_chip_resetcore(&sr->pub, 0, 0, 0); 571 572 /* Get info for determining size */ 573 coreinfo = brcmf_chip_core_read32(sr, SOCRAMREGOFFS(coreinfo)); 574 nb = (coreinfo & SRCI_SRNB_MASK) >> SRCI_SRNB_SHIFT; 575 576 if ((sr->pub.rev <= 7) || (sr->pub.rev == 12)) { 577 banksize = (coreinfo & SRCI_SRBSZ_MASK); 578 lss = (coreinfo & SRCI_LSS_MASK) >> SRCI_LSS_SHIFT; 579 if (lss != 0) 580 nb--; 581 *ramsize = nb * (1 << (banksize + SR_BSZ_BASE)); 582 if (lss != 0) 583 *ramsize += (1 << ((lss - 1) + SR_BSZ_BASE)); 584 } else { 585 /* length of SRAM Banks increased for corerev greater than 23 */ 586 if (sr->pub.rev >= 23) { 587 nb = (coreinfo & (SRCI_SRNB_MASK | SRCI_SRNB_MASK_EXT)) 588 >> SRCI_SRNB_SHIFT; 589 } else { 590 nb = (coreinfo & SRCI_SRNB_MASK) >> SRCI_SRNB_SHIFT; 591 } 592 for (i = 0; i < nb; i++) { 593 retent = brcmf_chip_socram_banksize(sr, i, &banksize); 594 *ramsize += banksize; 595 if (retent) 596 *srsize += banksize; 597 } 598 } 599 600 /* hardcoded save&restore memory sizes */ 601 switch (sr->chip->pub.chip) { 602 case BRCM_CC_4334_CHIP_ID: 603 if (sr->chip->pub.chiprev < 2) 604 *srsize = (32 * 1024); 605 break; 606 case BRCM_CC_43430_CHIP_ID: 607 /* assume sr for now as we can not check 608 * firmware sr capability at this point. 609 */ 610 *srsize = (64 * 1024); 611 break; 612 default: 613 break; 614 } 615 } 616 617 /** Return the SYS MEM size */ 618 static u32 brcmf_chip_sysmem_ramsize(struct brcmf_core_priv *sysmem) 619 { 620 u32 memsize = 0; 621 u32 coreinfo; 622 u32 idx; 623 u32 nb; 624 u32 banksize; 625 626 if (!brcmf_chip_iscoreup(&sysmem->pub)) 627 brcmf_chip_resetcore(&sysmem->pub, 0, 0, 0); 628 629 coreinfo = brcmf_chip_core_read32(sysmem, SYSMEMREGOFFS(coreinfo)); 630 nb = (coreinfo & SRCI_SRNB_MASK) >> SRCI_SRNB_SHIFT; 631 632 for (idx = 0; idx < nb; idx++) { 633 brcmf_chip_socram_banksize(sysmem, idx, &banksize); 634 memsize += banksize; 635 } 636 637 return memsize; 638 } 639 640 /** Return the TCM-RAM size of the ARMCR4 core. */ 641 static u32 brcmf_chip_tcm_ramsize(struct brcmf_core_priv *cr4) 642 { 643 u32 corecap; 644 u32 memsize = 0; 645 u32 nab; 646 u32 nbb; 647 u32 totb; 648 u32 bxinfo; 649 u32 idx; 650 651 corecap = brcmf_chip_core_read32(cr4, ARMCR4_CAP); 652 653 nab = (corecap & ARMCR4_TCBANB_MASK) >> ARMCR4_TCBANB_SHIFT; 654 nbb = (corecap & ARMCR4_TCBBNB_MASK) >> ARMCR4_TCBBNB_SHIFT; 655 totb = nab + nbb; 656 657 for (idx = 0; idx < totb; idx++) { 658 brcmf_chip_core_write32(cr4, ARMCR4_BANKIDX, idx); 659 bxinfo = brcmf_chip_core_read32(cr4, ARMCR4_BANKINFO); 660 memsize += ((bxinfo & ARMCR4_BSZ_MASK) + 1) * ARMCR4_BSZ_MULT; 661 } 662 663 return memsize; 664 } 665 666 static u32 brcmf_chip_tcm_rambase(struct brcmf_chip_priv *ci) 667 { 668 switch (ci->pub.chip) { 669 case BRCM_CC_4345_CHIP_ID: 670 return 0x198000; 671 case BRCM_CC_4335_CHIP_ID: 672 case BRCM_CC_4339_CHIP_ID: 673 case BRCM_CC_4350_CHIP_ID: 674 case BRCM_CC_4354_CHIP_ID: 675 case BRCM_CC_4356_CHIP_ID: 676 case BRCM_CC_43567_CHIP_ID: 677 case BRCM_CC_43569_CHIP_ID: 678 case BRCM_CC_43570_CHIP_ID: 679 case BRCM_CC_4358_CHIP_ID: 680 case BRCM_CC_4359_CHIP_ID: 681 case BRCM_CC_43602_CHIP_ID: 682 case BRCM_CC_4371_CHIP_ID: 683 return 0x180000; 684 case BRCM_CC_43465_CHIP_ID: 685 case BRCM_CC_43525_CHIP_ID: 686 case BRCM_CC_4365_CHIP_ID: 687 case BRCM_CC_4366_CHIP_ID: 688 case BRCM_CC_43664_CHIP_ID: 689 return 0x200000; 690 case CY_CC_4373_CHIP_ID: 691 return 0x160000; 692 default: 693 brcmf_err("unknown chip: %s\n", ci->pub.name); 694 break; 695 } 696 return 0; 697 } 698 699 int brcmf_chip_get_raminfo(struct brcmf_chip *pub) 700 { 701 struct brcmf_chip_priv *ci = container_of(pub, struct brcmf_chip_priv, 702 pub); 703 struct brcmf_core_priv *mem_core; 704 struct brcmf_core *mem; 705 706 mem = brcmf_chip_get_core(&ci->pub, BCMA_CORE_ARM_CR4); 707 if (mem) { 708 mem_core = container_of(mem, struct brcmf_core_priv, pub); 709 ci->pub.ramsize = brcmf_chip_tcm_ramsize(mem_core); 710 ci->pub.rambase = brcmf_chip_tcm_rambase(ci); 711 if (!ci->pub.rambase) { 712 brcmf_err("RAM base not provided with ARM CR4 core\n"); 713 return -EINVAL; 714 } 715 } else { 716 mem = brcmf_chip_get_core(&ci->pub, BCMA_CORE_SYS_MEM); 717 if (mem) { 718 mem_core = container_of(mem, struct brcmf_core_priv, 719 pub); 720 ci->pub.ramsize = brcmf_chip_sysmem_ramsize(mem_core); 721 ci->pub.rambase = brcmf_chip_tcm_rambase(ci); 722 if (!ci->pub.rambase) { 723 brcmf_err("RAM base not provided with ARM CA7 core\n"); 724 return -EINVAL; 725 } 726 } else { 727 mem = brcmf_chip_get_core(&ci->pub, 728 BCMA_CORE_INTERNAL_MEM); 729 if (!mem) { 730 brcmf_err("No memory cores found\n"); 731 return -ENOMEM; 732 } 733 mem_core = container_of(mem, struct brcmf_core_priv, 734 pub); 735 brcmf_chip_socram_ramsize(mem_core, &ci->pub.ramsize, 736 &ci->pub.srsize); 737 } 738 } 739 brcmf_dbg(INFO, "RAM: base=0x%x size=%d (0x%x) sr=%d (0x%x)\n", 740 ci->pub.rambase, ci->pub.ramsize, ci->pub.ramsize, 741 ci->pub.srsize, ci->pub.srsize); 742 743 if (!ci->pub.ramsize) { 744 brcmf_err("RAM size is undetermined\n"); 745 return -ENOMEM; 746 } 747 748 if (ci->pub.ramsize > BRCMF_CHIP_MAX_MEMSIZE) { 749 brcmf_err("RAM size is incorrect\n"); 750 return -ENOMEM; 751 } 752 753 return 0; 754 } 755 756 static u32 brcmf_chip_dmp_get_desc(struct brcmf_chip_priv *ci, u32 *eromaddr, 757 u8 *type) 758 { 759 u32 val; 760 761 /* read next descriptor */ 762 val = ci->ops->read32(ci->ctx, *eromaddr); 763 *eromaddr += 4; 764 765 if (!type) 766 return val; 767 768 /* determine descriptor type */ 769 *type = (val & DMP_DESC_TYPE_MSK); 770 if ((*type & ~DMP_DESC_ADDRSIZE_GT32) == DMP_DESC_ADDRESS) 771 *type = DMP_DESC_ADDRESS; 772 773 return val; 774 } 775 776 static int brcmf_chip_dmp_get_regaddr(struct brcmf_chip_priv *ci, u32 *eromaddr, 777 u32 *regbase, u32 *wrapbase) 778 { 779 u8 desc; 780 u32 val, szdesc; 781 u8 mpnum = 0; 782 u8 stype, sztype, wraptype; 783 784 *regbase = 0; 785 *wrapbase = 0; 786 787 val = brcmf_chip_dmp_get_desc(ci, eromaddr, &desc); 788 if (desc == DMP_DESC_MASTER_PORT) { 789 mpnum = (val & DMP_MASTER_PORT_NUM) >> DMP_MASTER_PORT_NUM_S; 790 wraptype = DMP_SLAVE_TYPE_MWRAP; 791 } else if (desc == DMP_DESC_ADDRESS) { 792 /* revert erom address */ 793 *eromaddr -= 4; 794 wraptype = DMP_SLAVE_TYPE_SWRAP; 795 } else { 796 *eromaddr -= 4; 797 return -EILSEQ; 798 } 799 800 do { 801 /* locate address descriptor */ 802 do { 803 val = brcmf_chip_dmp_get_desc(ci, eromaddr, &desc); 804 /* unexpected table end */ 805 if (desc == DMP_DESC_EOT) { 806 *eromaddr -= 4; 807 return -EFAULT; 808 } 809 } while (desc != DMP_DESC_ADDRESS && 810 desc != DMP_DESC_COMPONENT); 811 812 /* stop if we crossed current component border */ 813 if (desc == DMP_DESC_COMPONENT) { 814 *eromaddr -= 4; 815 return 0; 816 } 817 818 /* skip upper 32-bit address descriptor */ 819 if (val & DMP_DESC_ADDRSIZE_GT32) 820 brcmf_chip_dmp_get_desc(ci, eromaddr, NULL); 821 822 sztype = (val & DMP_SLAVE_SIZE_TYPE) >> DMP_SLAVE_SIZE_TYPE_S; 823 824 /* next size descriptor can be skipped */ 825 if (sztype == DMP_SLAVE_SIZE_DESC) { 826 szdesc = brcmf_chip_dmp_get_desc(ci, eromaddr, NULL); 827 /* skip upper size descriptor if present */ 828 if (szdesc & DMP_DESC_ADDRSIZE_GT32) 829 brcmf_chip_dmp_get_desc(ci, eromaddr, NULL); 830 } 831 832 /* look for 4K or 8K register regions */ 833 if (sztype != DMP_SLAVE_SIZE_4K && 834 sztype != DMP_SLAVE_SIZE_8K) 835 continue; 836 837 stype = (val & DMP_SLAVE_TYPE) >> DMP_SLAVE_TYPE_S; 838 839 /* only regular slave and wrapper */ 840 if (*regbase == 0 && stype == DMP_SLAVE_TYPE_SLAVE) 841 *regbase = val & DMP_SLAVE_ADDR_BASE; 842 if (*wrapbase == 0 && stype == wraptype) 843 *wrapbase = val & DMP_SLAVE_ADDR_BASE; 844 } while (*regbase == 0 || *wrapbase == 0); 845 846 return 0; 847 } 848 849 static 850 int brcmf_chip_dmp_erom_scan(struct brcmf_chip_priv *ci) 851 { 852 struct brcmf_core *core; 853 u32 eromaddr; 854 u8 desc_type = 0; 855 u32 val; 856 u16 id; 857 u8 nmp, nsp, nmw, nsw, rev; 858 u32 base, wrap; 859 int err; 860 861 eromaddr = ci->ops->read32(ci->ctx, CORE_CC_REG(SI_ENUM_BASE, eromptr)); 862 863 while (desc_type != DMP_DESC_EOT) { 864 val = brcmf_chip_dmp_get_desc(ci, &eromaddr, &desc_type); 865 if (!(val & DMP_DESC_VALID)) 866 continue; 867 868 if (desc_type == DMP_DESC_EMPTY) 869 continue; 870 871 /* need a component descriptor */ 872 if (desc_type != DMP_DESC_COMPONENT) 873 continue; 874 875 id = (val & DMP_COMP_PARTNUM) >> DMP_COMP_PARTNUM_S; 876 877 /* next descriptor must be component as well */ 878 val = brcmf_chip_dmp_get_desc(ci, &eromaddr, &desc_type); 879 if (WARN_ON((val & DMP_DESC_TYPE_MSK) != DMP_DESC_COMPONENT)) 880 return -EFAULT; 881 882 /* only look at cores with master port(s) */ 883 nmp = (val & DMP_COMP_NUM_MPORT) >> DMP_COMP_NUM_MPORT_S; 884 nsp = (val & DMP_COMP_NUM_SPORT) >> DMP_COMP_NUM_SPORT_S; 885 nmw = (val & DMP_COMP_NUM_MWRAP) >> DMP_COMP_NUM_MWRAP_S; 886 nsw = (val & DMP_COMP_NUM_SWRAP) >> DMP_COMP_NUM_SWRAP_S; 887 rev = (val & DMP_COMP_REVISION) >> DMP_COMP_REVISION_S; 888 889 /* need core with ports */ 890 if (nmw + nsw == 0 && 891 id != BCMA_CORE_PMU && 892 id != BCMA_CORE_GCI) 893 continue; 894 895 /* try to obtain register address info */ 896 err = brcmf_chip_dmp_get_regaddr(ci, &eromaddr, &base, &wrap); 897 if (err) 898 continue; 899 900 /* finally a core to be added */ 901 core = brcmf_chip_add_core(ci, id, base, wrap); 902 if (IS_ERR(core)) 903 return PTR_ERR(core); 904 905 core->rev = rev; 906 } 907 908 return 0; 909 } 910 911 static int brcmf_chip_recognition(struct brcmf_chip_priv *ci) 912 { 913 struct brcmf_core *core; 914 u32 regdata; 915 u32 socitype; 916 int ret; 917 918 /* Get CC core rev 919 * Chipid is assume to be at offset 0 from SI_ENUM_BASE 920 * For different chiptypes or old sdio hosts w/o chipcommon, 921 * other ways of recognition should be added here. 922 */ 923 regdata = ci->ops->read32(ci->ctx, CORE_CC_REG(SI_ENUM_BASE, chipid)); 924 ci->pub.chip = regdata & CID_ID_MASK; 925 ci->pub.chiprev = (regdata & CID_REV_MASK) >> CID_REV_SHIFT; 926 socitype = (regdata & CID_TYPE_MASK) >> CID_TYPE_SHIFT; 927 928 brcmf_chip_name(ci->pub.chip, ci->pub.chiprev, 929 ci->pub.name, sizeof(ci->pub.name)); 930 brcmf_dbg(INFO, "found %s chip: %s\n", 931 socitype == SOCI_SB ? "SB" : "AXI", ci->pub.name); 932 933 if (socitype == SOCI_SB) { 934 if (ci->pub.chip != BRCM_CC_4329_CHIP_ID) { 935 brcmf_err("SB chip is not supported\n"); 936 return -ENODEV; 937 } 938 ci->iscoreup = brcmf_chip_sb_iscoreup; 939 ci->coredisable = brcmf_chip_sb_coredisable; 940 ci->resetcore = brcmf_chip_sb_resetcore; 941 942 core = brcmf_chip_add_core(ci, BCMA_CORE_CHIPCOMMON, 943 SI_ENUM_BASE, 0); 944 brcmf_chip_sb_corerev(ci, core); 945 core = brcmf_chip_add_core(ci, BCMA_CORE_SDIO_DEV, 946 BCM4329_CORE_BUS_BASE, 0); 947 brcmf_chip_sb_corerev(ci, core); 948 core = brcmf_chip_add_core(ci, BCMA_CORE_INTERNAL_MEM, 949 BCM4329_CORE_SOCRAM_BASE, 0); 950 brcmf_chip_sb_corerev(ci, core); 951 core = brcmf_chip_add_core(ci, BCMA_CORE_ARM_CM3, 952 BCM4329_CORE_ARM_BASE, 0); 953 brcmf_chip_sb_corerev(ci, core); 954 955 core = brcmf_chip_add_core(ci, BCMA_CORE_80211, 0x18001000, 0); 956 brcmf_chip_sb_corerev(ci, core); 957 } else if (socitype == SOCI_AI) { 958 ci->iscoreup = brcmf_chip_ai_iscoreup; 959 ci->coredisable = brcmf_chip_ai_coredisable; 960 ci->resetcore = brcmf_chip_ai_resetcore; 961 962 brcmf_chip_dmp_erom_scan(ci); 963 } else { 964 brcmf_err("chip backplane type %u is not supported\n", 965 socitype); 966 return -ENODEV; 967 } 968 969 ret = brcmf_chip_cores_check(ci); 970 if (ret) 971 return ret; 972 973 /* assure chip is passive for core access */ 974 brcmf_chip_set_passive(&ci->pub); 975 976 /* Call bus specific reset function now. Cores have been determined 977 * but further access may require a chip specific reset at this point. 978 */ 979 if (ci->ops->reset) { 980 ci->ops->reset(ci->ctx, &ci->pub); 981 brcmf_chip_set_passive(&ci->pub); 982 } 983 984 return brcmf_chip_get_raminfo(&ci->pub); 985 } 986 987 static void brcmf_chip_disable_arm(struct brcmf_chip_priv *chip, u16 id) 988 { 989 struct brcmf_core *core; 990 struct brcmf_core_priv *cpu; 991 u32 val; 992 993 994 core = brcmf_chip_get_core(&chip->pub, id); 995 if (!core) 996 return; 997 998 switch (id) { 999 case BCMA_CORE_ARM_CM3: 1000 brcmf_chip_coredisable(core, 0, 0); 1001 break; 1002 case BCMA_CORE_ARM_CR4: 1003 case BCMA_CORE_ARM_CA7: 1004 cpu = container_of(core, struct brcmf_core_priv, pub); 1005 1006 /* clear all IOCTL bits except HALT bit */ 1007 val = chip->ops->read32(chip->ctx, cpu->wrapbase + BCMA_IOCTL); 1008 val &= ARMCR4_BCMA_IOCTL_CPUHALT; 1009 brcmf_chip_resetcore(core, val, ARMCR4_BCMA_IOCTL_CPUHALT, 1010 ARMCR4_BCMA_IOCTL_CPUHALT); 1011 break; 1012 default: 1013 brcmf_err("unknown id: %u\n", id); 1014 break; 1015 } 1016 } 1017 1018 static int brcmf_chip_setup(struct brcmf_chip_priv *chip) 1019 { 1020 struct brcmf_chip *pub; 1021 struct brcmf_core_priv *cc; 1022 struct brcmf_core *pmu; 1023 u32 base; 1024 u32 val; 1025 int ret = 0; 1026 1027 pub = &chip->pub; 1028 cc = list_first_entry(&chip->cores, struct brcmf_core_priv, list); 1029 base = cc->pub.base; 1030 1031 /* get chipcommon capabilites */ 1032 pub->cc_caps = chip->ops->read32(chip->ctx, 1033 CORE_CC_REG(base, capabilities)); 1034 pub->cc_caps_ext = chip->ops->read32(chip->ctx, 1035 CORE_CC_REG(base, 1036 capabilities_ext)); 1037 1038 /* get pmu caps & rev */ 1039 pmu = brcmf_chip_get_pmu(pub); /* after reading cc_caps_ext */ 1040 if (pub->cc_caps & CC_CAP_PMU) { 1041 val = chip->ops->read32(chip->ctx, 1042 CORE_CC_REG(pmu->base, pmucapabilities)); 1043 pub->pmurev = val & PCAP_REV_MASK; 1044 pub->pmucaps = val; 1045 } 1046 1047 brcmf_dbg(INFO, "ccrev=%d, pmurev=%d, pmucaps=0x%x\n", 1048 cc->pub.rev, pub->pmurev, pub->pmucaps); 1049 1050 /* execute bus core specific setup */ 1051 if (chip->ops->setup) 1052 ret = chip->ops->setup(chip->ctx, pub); 1053 1054 return ret; 1055 } 1056 1057 struct brcmf_chip *brcmf_chip_attach(void *ctx, 1058 const struct brcmf_buscore_ops *ops) 1059 { 1060 struct brcmf_chip_priv *chip; 1061 int err = 0; 1062 1063 if (WARN_ON(!ops->read32)) 1064 err = -EINVAL; 1065 if (WARN_ON(!ops->write32)) 1066 err = -EINVAL; 1067 if (WARN_ON(!ops->prepare)) 1068 err = -EINVAL; 1069 if (WARN_ON(!ops->activate)) 1070 err = -EINVAL; 1071 if (err < 0) 1072 return ERR_PTR(-EINVAL); 1073 1074 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 1075 if (!chip) 1076 return ERR_PTR(-ENOMEM); 1077 1078 INIT_LIST_HEAD(&chip->cores); 1079 chip->num_cores = 0; 1080 chip->ops = ops; 1081 chip->ctx = ctx; 1082 1083 err = ops->prepare(ctx); 1084 if (err < 0) 1085 goto fail; 1086 1087 err = brcmf_chip_recognition(chip); 1088 if (err < 0) 1089 goto fail; 1090 1091 err = brcmf_chip_setup(chip); 1092 if (err < 0) 1093 goto fail; 1094 1095 return &chip->pub; 1096 1097 fail: 1098 brcmf_chip_detach(&chip->pub); 1099 return ERR_PTR(err); 1100 } 1101 1102 void brcmf_chip_detach(struct brcmf_chip *pub) 1103 { 1104 struct brcmf_chip_priv *chip; 1105 struct brcmf_core_priv *core; 1106 struct brcmf_core_priv *tmp; 1107 1108 chip = container_of(pub, struct brcmf_chip_priv, pub); 1109 list_for_each_entry_safe(core, tmp, &chip->cores, list) { 1110 list_del(&core->list); 1111 kfree(core); 1112 } 1113 kfree(chip); 1114 } 1115 1116 struct brcmf_core *brcmf_chip_get_core(struct brcmf_chip *pub, u16 coreid) 1117 { 1118 struct brcmf_chip_priv *chip; 1119 struct brcmf_core_priv *core; 1120 1121 chip = container_of(pub, struct brcmf_chip_priv, pub); 1122 list_for_each_entry(core, &chip->cores, list) 1123 if (core->pub.id == coreid) 1124 return &core->pub; 1125 1126 return NULL; 1127 } 1128 1129 struct brcmf_core *brcmf_chip_get_chipcommon(struct brcmf_chip *pub) 1130 { 1131 struct brcmf_chip_priv *chip; 1132 struct brcmf_core_priv *cc; 1133 1134 chip = container_of(pub, struct brcmf_chip_priv, pub); 1135 cc = list_first_entry(&chip->cores, struct brcmf_core_priv, list); 1136 if (WARN_ON(!cc || cc->pub.id != BCMA_CORE_CHIPCOMMON)) 1137 return brcmf_chip_get_core(pub, BCMA_CORE_CHIPCOMMON); 1138 return &cc->pub; 1139 } 1140 1141 struct brcmf_core *brcmf_chip_get_pmu(struct brcmf_chip *pub) 1142 { 1143 struct brcmf_core *cc = brcmf_chip_get_chipcommon(pub); 1144 struct brcmf_core *pmu; 1145 1146 /* See if there is separated PMU core available */ 1147 if (cc->rev >= 35 && 1148 pub->cc_caps_ext & BCMA_CC_CAP_EXT_AOB_PRESENT) { 1149 pmu = brcmf_chip_get_core(pub, BCMA_CORE_PMU); 1150 if (pmu) 1151 return pmu; 1152 } 1153 1154 /* Fallback to ChipCommon core for older hardware */ 1155 return cc; 1156 } 1157 1158 bool brcmf_chip_iscoreup(struct brcmf_core *pub) 1159 { 1160 struct brcmf_core_priv *core; 1161 1162 core = container_of(pub, struct brcmf_core_priv, pub); 1163 return core->chip->iscoreup(core); 1164 } 1165 1166 void brcmf_chip_coredisable(struct brcmf_core *pub, u32 prereset, u32 reset) 1167 { 1168 struct brcmf_core_priv *core; 1169 1170 core = container_of(pub, struct brcmf_core_priv, pub); 1171 core->chip->coredisable(core, prereset, reset); 1172 } 1173 1174 void brcmf_chip_resetcore(struct brcmf_core *pub, u32 prereset, u32 reset, 1175 u32 postreset) 1176 { 1177 struct brcmf_core_priv *core; 1178 1179 core = container_of(pub, struct brcmf_core_priv, pub); 1180 core->chip->resetcore(core, prereset, reset, postreset); 1181 } 1182 1183 static void 1184 brcmf_chip_cm3_set_passive(struct brcmf_chip_priv *chip) 1185 { 1186 struct brcmf_core *core; 1187 struct brcmf_core_priv *sr; 1188 1189 brcmf_chip_disable_arm(chip, BCMA_CORE_ARM_CM3); 1190 core = brcmf_chip_get_core(&chip->pub, BCMA_CORE_80211); 1191 brcmf_chip_resetcore(core, D11_BCMA_IOCTL_PHYRESET | 1192 D11_BCMA_IOCTL_PHYCLOCKEN, 1193 D11_BCMA_IOCTL_PHYCLOCKEN, 1194 D11_BCMA_IOCTL_PHYCLOCKEN); 1195 core = brcmf_chip_get_core(&chip->pub, BCMA_CORE_INTERNAL_MEM); 1196 brcmf_chip_resetcore(core, 0, 0, 0); 1197 1198 /* disable bank #3 remap for this device */ 1199 if (chip->pub.chip == BRCM_CC_43430_CHIP_ID) { 1200 sr = container_of(core, struct brcmf_core_priv, pub); 1201 brcmf_chip_core_write32(sr, SOCRAMREGOFFS(bankidx), 3); 1202 brcmf_chip_core_write32(sr, SOCRAMREGOFFS(bankpda), 0); 1203 } 1204 } 1205 1206 static bool brcmf_chip_cm3_set_active(struct brcmf_chip_priv *chip) 1207 { 1208 struct brcmf_core *core; 1209 1210 core = brcmf_chip_get_core(&chip->pub, BCMA_CORE_INTERNAL_MEM); 1211 if (!brcmf_chip_iscoreup(core)) { 1212 brcmf_err("SOCRAM core is down after reset?\n"); 1213 return false; 1214 } 1215 1216 chip->ops->activate(chip->ctx, &chip->pub, 0); 1217 1218 core = brcmf_chip_get_core(&chip->pub, BCMA_CORE_ARM_CM3); 1219 brcmf_chip_resetcore(core, 0, 0, 0); 1220 1221 return true; 1222 } 1223 1224 static inline void 1225 brcmf_chip_cr4_set_passive(struct brcmf_chip_priv *chip) 1226 { 1227 struct brcmf_core *core; 1228 1229 brcmf_chip_disable_arm(chip, BCMA_CORE_ARM_CR4); 1230 1231 core = brcmf_chip_get_core(&chip->pub, BCMA_CORE_80211); 1232 brcmf_chip_resetcore(core, D11_BCMA_IOCTL_PHYRESET | 1233 D11_BCMA_IOCTL_PHYCLOCKEN, 1234 D11_BCMA_IOCTL_PHYCLOCKEN, 1235 D11_BCMA_IOCTL_PHYCLOCKEN); 1236 } 1237 1238 static bool brcmf_chip_cr4_set_active(struct brcmf_chip_priv *chip, u32 rstvec) 1239 { 1240 struct brcmf_core *core; 1241 1242 chip->ops->activate(chip->ctx, &chip->pub, rstvec); 1243 1244 /* restore ARM */ 1245 core = brcmf_chip_get_core(&chip->pub, BCMA_CORE_ARM_CR4); 1246 brcmf_chip_resetcore(core, ARMCR4_BCMA_IOCTL_CPUHALT, 0, 0); 1247 1248 return true; 1249 } 1250 1251 static inline void 1252 brcmf_chip_ca7_set_passive(struct brcmf_chip_priv *chip) 1253 { 1254 struct brcmf_core *core; 1255 1256 brcmf_chip_disable_arm(chip, BCMA_CORE_ARM_CA7); 1257 1258 core = brcmf_chip_get_core(&chip->pub, BCMA_CORE_80211); 1259 brcmf_chip_resetcore(core, D11_BCMA_IOCTL_PHYRESET | 1260 D11_BCMA_IOCTL_PHYCLOCKEN, 1261 D11_BCMA_IOCTL_PHYCLOCKEN, 1262 D11_BCMA_IOCTL_PHYCLOCKEN); 1263 } 1264 1265 static bool brcmf_chip_ca7_set_active(struct brcmf_chip_priv *chip, u32 rstvec) 1266 { 1267 struct brcmf_core *core; 1268 1269 chip->ops->activate(chip->ctx, &chip->pub, rstvec); 1270 1271 /* restore ARM */ 1272 core = brcmf_chip_get_core(&chip->pub, BCMA_CORE_ARM_CA7); 1273 brcmf_chip_resetcore(core, ARMCR4_BCMA_IOCTL_CPUHALT, 0, 0); 1274 1275 return true; 1276 } 1277 1278 void brcmf_chip_set_passive(struct brcmf_chip *pub) 1279 { 1280 struct brcmf_chip_priv *chip; 1281 struct brcmf_core *arm; 1282 1283 brcmf_dbg(TRACE, "Enter\n"); 1284 1285 chip = container_of(pub, struct brcmf_chip_priv, pub); 1286 arm = brcmf_chip_get_core(pub, BCMA_CORE_ARM_CR4); 1287 if (arm) { 1288 brcmf_chip_cr4_set_passive(chip); 1289 return; 1290 } 1291 arm = brcmf_chip_get_core(pub, BCMA_CORE_ARM_CA7); 1292 if (arm) { 1293 brcmf_chip_ca7_set_passive(chip); 1294 return; 1295 } 1296 arm = brcmf_chip_get_core(pub, BCMA_CORE_ARM_CM3); 1297 if (arm) { 1298 brcmf_chip_cm3_set_passive(chip); 1299 return; 1300 } 1301 } 1302 1303 bool brcmf_chip_set_active(struct brcmf_chip *pub, u32 rstvec) 1304 { 1305 struct brcmf_chip_priv *chip; 1306 struct brcmf_core *arm; 1307 1308 brcmf_dbg(TRACE, "Enter\n"); 1309 1310 chip = container_of(pub, struct brcmf_chip_priv, pub); 1311 arm = brcmf_chip_get_core(pub, BCMA_CORE_ARM_CR4); 1312 if (arm) 1313 return brcmf_chip_cr4_set_active(chip, rstvec); 1314 arm = brcmf_chip_get_core(pub, BCMA_CORE_ARM_CA7); 1315 if (arm) 1316 return brcmf_chip_ca7_set_active(chip, rstvec); 1317 arm = brcmf_chip_get_core(pub, BCMA_CORE_ARM_CM3); 1318 if (arm) 1319 return brcmf_chip_cm3_set_active(chip); 1320 1321 return false; 1322 } 1323 1324 bool brcmf_chip_sr_capable(struct brcmf_chip *pub) 1325 { 1326 u32 base, addr, reg, pmu_cc3_mask = ~0; 1327 struct brcmf_chip_priv *chip; 1328 struct brcmf_core *pmu = brcmf_chip_get_pmu(pub); 1329 1330 brcmf_dbg(TRACE, "Enter\n"); 1331 1332 /* old chips with PMU version less than 17 don't support save restore */ 1333 if (pub->pmurev < 17) 1334 return false; 1335 1336 base = brcmf_chip_get_chipcommon(pub)->base; 1337 chip = container_of(pub, struct brcmf_chip_priv, pub); 1338 1339 switch (pub->chip) { 1340 case BRCM_CC_4354_CHIP_ID: 1341 case BRCM_CC_4356_CHIP_ID: 1342 case BRCM_CC_4345_CHIP_ID: 1343 /* explicitly check SR engine enable bit */ 1344 pmu_cc3_mask = BIT(2); 1345 /* fall-through */ 1346 case BRCM_CC_43241_CHIP_ID: 1347 case BRCM_CC_4335_CHIP_ID: 1348 case BRCM_CC_4339_CHIP_ID: 1349 /* read PMU chipcontrol register 3 */ 1350 addr = CORE_CC_REG(pmu->base, chipcontrol_addr); 1351 chip->ops->write32(chip->ctx, addr, 3); 1352 addr = CORE_CC_REG(pmu->base, chipcontrol_data); 1353 reg = chip->ops->read32(chip->ctx, addr); 1354 return (reg & pmu_cc3_mask) != 0; 1355 case BRCM_CC_43430_CHIP_ID: 1356 addr = CORE_CC_REG(base, sr_control1); 1357 reg = chip->ops->read32(chip->ctx, addr); 1358 return reg != 0; 1359 case CY_CC_4373_CHIP_ID: 1360 /* explicitly check SR engine enable bit */ 1361 addr = CORE_CC_REG(base, sr_control0); 1362 reg = chip->ops->read32(chip->ctx, addr); 1363 return (reg & CC_SR_CTL0_ENABLE_MASK) != 0; 1364 case CY_CC_43012_CHIP_ID: 1365 addr = CORE_CC_REG(pmu->base, retention_ctl); 1366 reg = chip->ops->read32(chip->ctx, addr); 1367 return (reg & (PMU_RCTL_MACPHY_DISABLE_MASK | 1368 PMU_RCTL_LOGIC_DISABLE_MASK)) == 0; 1369 default: 1370 addr = CORE_CC_REG(pmu->base, pmucapabilities_ext); 1371 reg = chip->ops->read32(chip->ctx, addr); 1372 if ((reg & PCAPEXT_SR_SUPPORTED_MASK) == 0) 1373 return false; 1374 1375 addr = CORE_CC_REG(pmu->base, retention_ctl); 1376 reg = chip->ops->read32(chip->ctx, addr); 1377 return (reg & (PMU_RCTL_MACPHY_DISABLE_MASK | 1378 PMU_RCTL_LOGIC_DISABLE_MASK)) == 0; 1379 } 1380 } 1381