1 /* 2 * TI OMAP processors emulation. 3 * 4 * Copyright (C) 2006-2008 Andrzej Zaborowski <balrog@zabor.org> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 or 9 * (at your option) version 3 of the License. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License along 17 * with this program; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #include "hw/boards.h" 21 #include "hw/hw.h" 22 #include "hw/arm/arm.h" 23 #include "hw/arm/omap.h" 24 #include "sysemu/sysemu.h" 25 #include "hw/arm/soc_dma.h" 26 #include "sysemu/block-backend.h" 27 #include "sysemu/blockdev.h" 28 #include "qemu/range.h" 29 #include "hw/sysbus.h" 30 31 /* Should signal the TCMI/GPMC */ 32 uint32_t omap_badwidth_read8(void *opaque, hwaddr addr) 33 { 34 uint8_t ret; 35 36 OMAP_8B_REG(addr); 37 cpu_physical_memory_read(addr, &ret, 1); 38 return ret; 39 } 40 41 void omap_badwidth_write8(void *opaque, hwaddr addr, 42 uint32_t value) 43 { 44 uint8_t val8 = value; 45 46 OMAP_8B_REG(addr); 47 cpu_physical_memory_write(addr, &val8, 1); 48 } 49 50 uint32_t omap_badwidth_read16(void *opaque, hwaddr addr) 51 { 52 uint16_t ret; 53 54 OMAP_16B_REG(addr); 55 cpu_physical_memory_read(addr, &ret, 2); 56 return ret; 57 } 58 59 void omap_badwidth_write16(void *opaque, hwaddr addr, 60 uint32_t value) 61 { 62 uint16_t val16 = value; 63 64 OMAP_16B_REG(addr); 65 cpu_physical_memory_write(addr, &val16, 2); 66 } 67 68 uint32_t omap_badwidth_read32(void *opaque, hwaddr addr) 69 { 70 uint32_t ret; 71 72 OMAP_32B_REG(addr); 73 cpu_physical_memory_read(addr, &ret, 4); 74 return ret; 75 } 76 77 void omap_badwidth_write32(void *opaque, hwaddr addr, 78 uint32_t value) 79 { 80 OMAP_32B_REG(addr); 81 cpu_physical_memory_write(addr, &value, 4); 82 } 83 84 /* MPU OS timers */ 85 struct omap_mpu_timer_s { 86 MemoryRegion iomem; 87 qemu_irq irq; 88 omap_clk clk; 89 uint32_t val; 90 int64_t time; 91 QEMUTimer *timer; 92 QEMUBH *tick; 93 int64_t rate; 94 int it_ena; 95 96 int enable; 97 int ptv; 98 int ar; 99 int st; 100 uint32_t reset_val; 101 }; 102 103 static inline uint32_t omap_timer_read(struct omap_mpu_timer_s *timer) 104 { 105 uint64_t distance = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - timer->time; 106 107 if (timer->st && timer->enable && timer->rate) 108 return timer->val - muldiv64(distance >> (timer->ptv + 1), 109 timer->rate, get_ticks_per_sec()); 110 else 111 return timer->val; 112 } 113 114 static inline void omap_timer_sync(struct omap_mpu_timer_s *timer) 115 { 116 timer->val = omap_timer_read(timer); 117 timer->time = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 118 } 119 120 static inline void omap_timer_update(struct omap_mpu_timer_s *timer) 121 { 122 int64_t expires; 123 124 if (timer->enable && timer->st && timer->rate) { 125 timer->val = timer->reset_val; /* Should skip this on clk enable */ 126 expires = muldiv64((uint64_t) timer->val << (timer->ptv + 1), 127 get_ticks_per_sec(), timer->rate); 128 129 /* If timer expiry would be sooner than in about 1 ms and 130 * auto-reload isn't set, then fire immediately. This is a hack 131 * to make systems like PalmOS run in acceptable time. PalmOS 132 * sets the interval to a very low value and polls the status bit 133 * in a busy loop when it wants to sleep just a couple of CPU 134 * ticks. */ 135 if (expires > (get_ticks_per_sec() >> 10) || timer->ar) 136 timer_mod(timer->timer, timer->time + expires); 137 else 138 qemu_bh_schedule(timer->tick); 139 } else 140 timer_del(timer->timer); 141 } 142 143 static void omap_timer_fire(void *opaque) 144 { 145 struct omap_mpu_timer_s *timer = opaque; 146 147 if (!timer->ar) { 148 timer->val = 0; 149 timer->st = 0; 150 } 151 152 if (timer->it_ena) 153 /* Edge-triggered irq */ 154 qemu_irq_pulse(timer->irq); 155 } 156 157 static void omap_timer_tick(void *opaque) 158 { 159 struct omap_mpu_timer_s *timer = (struct omap_mpu_timer_s *) opaque; 160 161 omap_timer_sync(timer); 162 omap_timer_fire(timer); 163 omap_timer_update(timer); 164 } 165 166 static void omap_timer_clk_update(void *opaque, int line, int on) 167 { 168 struct omap_mpu_timer_s *timer = (struct omap_mpu_timer_s *) opaque; 169 170 omap_timer_sync(timer); 171 timer->rate = on ? omap_clk_getrate(timer->clk) : 0; 172 omap_timer_update(timer); 173 } 174 175 static void omap_timer_clk_setup(struct omap_mpu_timer_s *timer) 176 { 177 omap_clk_adduser(timer->clk, 178 qemu_allocate_irq(omap_timer_clk_update, timer, 0)); 179 timer->rate = omap_clk_getrate(timer->clk); 180 } 181 182 static uint64_t omap_mpu_timer_read(void *opaque, hwaddr addr, 183 unsigned size) 184 { 185 struct omap_mpu_timer_s *s = (struct omap_mpu_timer_s *) opaque; 186 187 if (size != 4) { 188 return omap_badwidth_read32(opaque, addr); 189 } 190 191 switch (addr) { 192 case 0x00: /* CNTL_TIMER */ 193 return (s->enable << 5) | (s->ptv << 2) | (s->ar << 1) | s->st; 194 195 case 0x04: /* LOAD_TIM */ 196 break; 197 198 case 0x08: /* READ_TIM */ 199 return omap_timer_read(s); 200 } 201 202 OMAP_BAD_REG(addr); 203 return 0; 204 } 205 206 static void omap_mpu_timer_write(void *opaque, hwaddr addr, 207 uint64_t value, unsigned size) 208 { 209 struct omap_mpu_timer_s *s = (struct omap_mpu_timer_s *) opaque; 210 211 if (size != 4) { 212 omap_badwidth_write32(opaque, addr, value); 213 return; 214 } 215 216 switch (addr) { 217 case 0x00: /* CNTL_TIMER */ 218 omap_timer_sync(s); 219 s->enable = (value >> 5) & 1; 220 s->ptv = (value >> 2) & 7; 221 s->ar = (value >> 1) & 1; 222 s->st = value & 1; 223 omap_timer_update(s); 224 return; 225 226 case 0x04: /* LOAD_TIM */ 227 s->reset_val = value; 228 return; 229 230 case 0x08: /* READ_TIM */ 231 OMAP_RO_REG(addr); 232 break; 233 234 default: 235 OMAP_BAD_REG(addr); 236 } 237 } 238 239 static const MemoryRegionOps omap_mpu_timer_ops = { 240 .read = omap_mpu_timer_read, 241 .write = omap_mpu_timer_write, 242 .endianness = DEVICE_LITTLE_ENDIAN, 243 }; 244 245 static void omap_mpu_timer_reset(struct omap_mpu_timer_s *s) 246 { 247 timer_del(s->timer); 248 s->enable = 0; 249 s->reset_val = 31337; 250 s->val = 0; 251 s->ptv = 0; 252 s->ar = 0; 253 s->st = 0; 254 s->it_ena = 1; 255 } 256 257 static struct omap_mpu_timer_s *omap_mpu_timer_init(MemoryRegion *system_memory, 258 hwaddr base, 259 qemu_irq irq, omap_clk clk) 260 { 261 struct omap_mpu_timer_s *s = (struct omap_mpu_timer_s *) 262 g_malloc0(sizeof(struct omap_mpu_timer_s)); 263 264 s->irq = irq; 265 s->clk = clk; 266 s->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, omap_timer_tick, s); 267 s->tick = qemu_bh_new(omap_timer_fire, s); 268 omap_mpu_timer_reset(s); 269 omap_timer_clk_setup(s); 270 271 memory_region_init_io(&s->iomem, NULL, &omap_mpu_timer_ops, s, 272 "omap-mpu-timer", 0x100); 273 274 memory_region_add_subregion(system_memory, base, &s->iomem); 275 276 return s; 277 } 278 279 /* Watchdog timer */ 280 struct omap_watchdog_timer_s { 281 struct omap_mpu_timer_s timer; 282 MemoryRegion iomem; 283 uint8_t last_wr; 284 int mode; 285 int free; 286 int reset; 287 }; 288 289 static uint64_t omap_wd_timer_read(void *opaque, hwaddr addr, 290 unsigned size) 291 { 292 struct omap_watchdog_timer_s *s = (struct omap_watchdog_timer_s *) opaque; 293 294 if (size != 2) { 295 return omap_badwidth_read16(opaque, addr); 296 } 297 298 switch (addr) { 299 case 0x00: /* CNTL_TIMER */ 300 return (s->timer.ptv << 9) | (s->timer.ar << 8) | 301 (s->timer.st << 7) | (s->free << 1); 302 303 case 0x04: /* READ_TIMER */ 304 return omap_timer_read(&s->timer); 305 306 case 0x08: /* TIMER_MODE */ 307 return s->mode << 15; 308 } 309 310 OMAP_BAD_REG(addr); 311 return 0; 312 } 313 314 static void omap_wd_timer_write(void *opaque, hwaddr addr, 315 uint64_t value, unsigned size) 316 { 317 struct omap_watchdog_timer_s *s = (struct omap_watchdog_timer_s *) opaque; 318 319 if (size != 2) { 320 omap_badwidth_write16(opaque, addr, value); 321 return; 322 } 323 324 switch (addr) { 325 case 0x00: /* CNTL_TIMER */ 326 omap_timer_sync(&s->timer); 327 s->timer.ptv = (value >> 9) & 7; 328 s->timer.ar = (value >> 8) & 1; 329 s->timer.st = (value >> 7) & 1; 330 s->free = (value >> 1) & 1; 331 omap_timer_update(&s->timer); 332 break; 333 334 case 0x04: /* LOAD_TIMER */ 335 s->timer.reset_val = value & 0xffff; 336 break; 337 338 case 0x08: /* TIMER_MODE */ 339 if (!s->mode && ((value >> 15) & 1)) 340 omap_clk_get(s->timer.clk); 341 s->mode |= (value >> 15) & 1; 342 if (s->last_wr == 0xf5) { 343 if ((value & 0xff) == 0xa0) { 344 if (s->mode) { 345 s->mode = 0; 346 omap_clk_put(s->timer.clk); 347 } 348 } else { 349 /* XXX: on T|E hardware somehow this has no effect, 350 * on Zire 71 it works as specified. */ 351 s->reset = 1; 352 qemu_system_reset_request(); 353 } 354 } 355 s->last_wr = value & 0xff; 356 break; 357 358 default: 359 OMAP_BAD_REG(addr); 360 } 361 } 362 363 static const MemoryRegionOps omap_wd_timer_ops = { 364 .read = omap_wd_timer_read, 365 .write = omap_wd_timer_write, 366 .endianness = DEVICE_NATIVE_ENDIAN, 367 }; 368 369 static void omap_wd_timer_reset(struct omap_watchdog_timer_s *s) 370 { 371 timer_del(s->timer.timer); 372 if (!s->mode) 373 omap_clk_get(s->timer.clk); 374 s->mode = 1; 375 s->free = 1; 376 s->reset = 0; 377 s->timer.enable = 1; 378 s->timer.it_ena = 1; 379 s->timer.reset_val = 0xffff; 380 s->timer.val = 0; 381 s->timer.st = 0; 382 s->timer.ptv = 0; 383 s->timer.ar = 0; 384 omap_timer_update(&s->timer); 385 } 386 387 static struct omap_watchdog_timer_s *omap_wd_timer_init(MemoryRegion *memory, 388 hwaddr base, 389 qemu_irq irq, omap_clk clk) 390 { 391 struct omap_watchdog_timer_s *s = (struct omap_watchdog_timer_s *) 392 g_malloc0(sizeof(struct omap_watchdog_timer_s)); 393 394 s->timer.irq = irq; 395 s->timer.clk = clk; 396 s->timer.timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, omap_timer_tick, &s->timer); 397 omap_wd_timer_reset(s); 398 omap_timer_clk_setup(&s->timer); 399 400 memory_region_init_io(&s->iomem, NULL, &omap_wd_timer_ops, s, 401 "omap-wd-timer", 0x100); 402 memory_region_add_subregion(memory, base, &s->iomem); 403 404 return s; 405 } 406 407 /* 32-kHz timer */ 408 struct omap_32khz_timer_s { 409 struct omap_mpu_timer_s timer; 410 MemoryRegion iomem; 411 }; 412 413 static uint64_t omap_os_timer_read(void *opaque, hwaddr addr, 414 unsigned size) 415 { 416 struct omap_32khz_timer_s *s = (struct omap_32khz_timer_s *) opaque; 417 int offset = addr & OMAP_MPUI_REG_MASK; 418 419 if (size != 4) { 420 return omap_badwidth_read32(opaque, addr); 421 } 422 423 switch (offset) { 424 case 0x00: /* TVR */ 425 return s->timer.reset_val; 426 427 case 0x04: /* TCR */ 428 return omap_timer_read(&s->timer); 429 430 case 0x08: /* CR */ 431 return (s->timer.ar << 3) | (s->timer.it_ena << 2) | s->timer.st; 432 433 default: 434 break; 435 } 436 OMAP_BAD_REG(addr); 437 return 0; 438 } 439 440 static void omap_os_timer_write(void *opaque, hwaddr addr, 441 uint64_t value, unsigned size) 442 { 443 struct omap_32khz_timer_s *s = (struct omap_32khz_timer_s *) opaque; 444 int offset = addr & OMAP_MPUI_REG_MASK; 445 446 if (size != 4) { 447 omap_badwidth_write32(opaque, addr, value); 448 return; 449 } 450 451 switch (offset) { 452 case 0x00: /* TVR */ 453 s->timer.reset_val = value & 0x00ffffff; 454 break; 455 456 case 0x04: /* TCR */ 457 OMAP_RO_REG(addr); 458 break; 459 460 case 0x08: /* CR */ 461 s->timer.ar = (value >> 3) & 1; 462 s->timer.it_ena = (value >> 2) & 1; 463 if (s->timer.st != (value & 1) || (value & 2)) { 464 omap_timer_sync(&s->timer); 465 s->timer.enable = value & 1; 466 s->timer.st = value & 1; 467 omap_timer_update(&s->timer); 468 } 469 break; 470 471 default: 472 OMAP_BAD_REG(addr); 473 } 474 } 475 476 static const MemoryRegionOps omap_os_timer_ops = { 477 .read = omap_os_timer_read, 478 .write = omap_os_timer_write, 479 .endianness = DEVICE_NATIVE_ENDIAN, 480 }; 481 482 static void omap_os_timer_reset(struct omap_32khz_timer_s *s) 483 { 484 timer_del(s->timer.timer); 485 s->timer.enable = 0; 486 s->timer.it_ena = 0; 487 s->timer.reset_val = 0x00ffffff; 488 s->timer.val = 0; 489 s->timer.st = 0; 490 s->timer.ptv = 0; 491 s->timer.ar = 1; 492 } 493 494 static struct omap_32khz_timer_s *omap_os_timer_init(MemoryRegion *memory, 495 hwaddr base, 496 qemu_irq irq, omap_clk clk) 497 { 498 struct omap_32khz_timer_s *s = (struct omap_32khz_timer_s *) 499 g_malloc0(sizeof(struct omap_32khz_timer_s)); 500 501 s->timer.irq = irq; 502 s->timer.clk = clk; 503 s->timer.timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, omap_timer_tick, &s->timer); 504 omap_os_timer_reset(s); 505 omap_timer_clk_setup(&s->timer); 506 507 memory_region_init_io(&s->iomem, NULL, &omap_os_timer_ops, s, 508 "omap-os-timer", 0x800); 509 memory_region_add_subregion(memory, base, &s->iomem); 510 511 return s; 512 } 513 514 /* Ultra Low-Power Device Module */ 515 static uint64_t omap_ulpd_pm_read(void *opaque, hwaddr addr, 516 unsigned size) 517 { 518 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 519 uint16_t ret; 520 521 if (size != 2) { 522 return omap_badwidth_read16(opaque, addr); 523 } 524 525 switch (addr) { 526 case 0x14: /* IT_STATUS */ 527 ret = s->ulpd_pm_regs[addr >> 2]; 528 s->ulpd_pm_regs[addr >> 2] = 0; 529 qemu_irq_lower(qdev_get_gpio_in(s->ih[1], OMAP_INT_GAUGE_32K)); 530 return ret; 531 532 case 0x18: /* Reserved */ 533 case 0x1c: /* Reserved */ 534 case 0x20: /* Reserved */ 535 case 0x28: /* Reserved */ 536 case 0x2c: /* Reserved */ 537 OMAP_BAD_REG(addr); 538 /* fall through */ 539 case 0x00: /* COUNTER_32_LSB */ 540 case 0x04: /* COUNTER_32_MSB */ 541 case 0x08: /* COUNTER_HIGH_FREQ_LSB */ 542 case 0x0c: /* COUNTER_HIGH_FREQ_MSB */ 543 case 0x10: /* GAUGING_CTRL */ 544 case 0x24: /* SETUP_ANALOG_CELL3_ULPD1 */ 545 case 0x30: /* CLOCK_CTRL */ 546 case 0x34: /* SOFT_REQ */ 547 case 0x38: /* COUNTER_32_FIQ */ 548 case 0x3c: /* DPLL_CTRL */ 549 case 0x40: /* STATUS_REQ */ 550 /* XXX: check clk::usecount state for every clock */ 551 case 0x48: /* LOCL_TIME */ 552 case 0x4c: /* APLL_CTRL */ 553 case 0x50: /* POWER_CTRL */ 554 return s->ulpd_pm_regs[addr >> 2]; 555 } 556 557 OMAP_BAD_REG(addr); 558 return 0; 559 } 560 561 static inline void omap_ulpd_clk_update(struct omap_mpu_state_s *s, 562 uint16_t diff, uint16_t value) 563 { 564 if (diff & (1 << 4)) /* USB_MCLK_EN */ 565 omap_clk_onoff(omap_findclk(s, "usb_clk0"), (value >> 4) & 1); 566 if (diff & (1 << 5)) /* DIS_USB_PVCI_CLK */ 567 omap_clk_onoff(omap_findclk(s, "usb_w2fc_ck"), (~value >> 5) & 1); 568 } 569 570 static inline void omap_ulpd_req_update(struct omap_mpu_state_s *s, 571 uint16_t diff, uint16_t value) 572 { 573 if (diff & (1 << 0)) /* SOFT_DPLL_REQ */ 574 omap_clk_canidle(omap_findclk(s, "dpll4"), (~value >> 0) & 1); 575 if (diff & (1 << 1)) /* SOFT_COM_REQ */ 576 omap_clk_canidle(omap_findclk(s, "com_mclk_out"), (~value >> 1) & 1); 577 if (diff & (1 << 2)) /* SOFT_SDW_REQ */ 578 omap_clk_canidle(omap_findclk(s, "bt_mclk_out"), (~value >> 2) & 1); 579 if (diff & (1 << 3)) /* SOFT_USB_REQ */ 580 omap_clk_canidle(omap_findclk(s, "usb_clk0"), (~value >> 3) & 1); 581 } 582 583 static void omap_ulpd_pm_write(void *opaque, hwaddr addr, 584 uint64_t value, unsigned size) 585 { 586 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 587 int64_t now, ticks; 588 int div, mult; 589 static const int bypass_div[4] = { 1, 2, 4, 4 }; 590 uint16_t diff; 591 592 if (size != 2) { 593 omap_badwidth_write16(opaque, addr, value); 594 return; 595 } 596 597 switch (addr) { 598 case 0x00: /* COUNTER_32_LSB */ 599 case 0x04: /* COUNTER_32_MSB */ 600 case 0x08: /* COUNTER_HIGH_FREQ_LSB */ 601 case 0x0c: /* COUNTER_HIGH_FREQ_MSB */ 602 case 0x14: /* IT_STATUS */ 603 case 0x40: /* STATUS_REQ */ 604 OMAP_RO_REG(addr); 605 break; 606 607 case 0x10: /* GAUGING_CTRL */ 608 /* Bits 0 and 1 seem to be confused in the OMAP 310 TRM */ 609 if ((s->ulpd_pm_regs[addr >> 2] ^ value) & 1) { 610 now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL); 611 612 if (value & 1) 613 s->ulpd_gauge_start = now; 614 else { 615 now -= s->ulpd_gauge_start; 616 617 /* 32-kHz ticks */ 618 ticks = muldiv64(now, 32768, get_ticks_per_sec()); 619 s->ulpd_pm_regs[0x00 >> 2] = (ticks >> 0) & 0xffff; 620 s->ulpd_pm_regs[0x04 >> 2] = (ticks >> 16) & 0xffff; 621 if (ticks >> 32) /* OVERFLOW_32K */ 622 s->ulpd_pm_regs[0x14 >> 2] |= 1 << 2; 623 624 /* High frequency ticks */ 625 ticks = muldiv64(now, 12000000, get_ticks_per_sec()); 626 s->ulpd_pm_regs[0x08 >> 2] = (ticks >> 0) & 0xffff; 627 s->ulpd_pm_regs[0x0c >> 2] = (ticks >> 16) & 0xffff; 628 if (ticks >> 32) /* OVERFLOW_HI_FREQ */ 629 s->ulpd_pm_regs[0x14 >> 2] |= 1 << 1; 630 631 s->ulpd_pm_regs[0x14 >> 2] |= 1 << 0; /* IT_GAUGING */ 632 qemu_irq_raise(qdev_get_gpio_in(s->ih[1], OMAP_INT_GAUGE_32K)); 633 } 634 } 635 s->ulpd_pm_regs[addr >> 2] = value; 636 break; 637 638 case 0x18: /* Reserved */ 639 case 0x1c: /* Reserved */ 640 case 0x20: /* Reserved */ 641 case 0x28: /* Reserved */ 642 case 0x2c: /* Reserved */ 643 OMAP_BAD_REG(addr); 644 /* fall through */ 645 case 0x24: /* SETUP_ANALOG_CELL3_ULPD1 */ 646 case 0x38: /* COUNTER_32_FIQ */ 647 case 0x48: /* LOCL_TIME */ 648 case 0x50: /* POWER_CTRL */ 649 s->ulpd_pm_regs[addr >> 2] = value; 650 break; 651 652 case 0x30: /* CLOCK_CTRL */ 653 diff = s->ulpd_pm_regs[addr >> 2] ^ value; 654 s->ulpd_pm_regs[addr >> 2] = value & 0x3f; 655 omap_ulpd_clk_update(s, diff, value); 656 break; 657 658 case 0x34: /* SOFT_REQ */ 659 diff = s->ulpd_pm_regs[addr >> 2] ^ value; 660 s->ulpd_pm_regs[addr >> 2] = value & 0x1f; 661 omap_ulpd_req_update(s, diff, value); 662 break; 663 664 case 0x3c: /* DPLL_CTRL */ 665 /* XXX: OMAP310 TRM claims bit 3 is PLL_ENABLE, and bit 4 is 666 * omitted altogether, probably a typo. */ 667 /* This register has identical semantics with DPLL(1:3) control 668 * registers, see omap_dpll_write() */ 669 diff = s->ulpd_pm_regs[addr >> 2] & value; 670 s->ulpd_pm_regs[addr >> 2] = value & 0x2fff; 671 if (diff & (0x3ff << 2)) { 672 if (value & (1 << 4)) { /* PLL_ENABLE */ 673 div = ((value >> 5) & 3) + 1; /* PLL_DIV */ 674 mult = MIN((value >> 7) & 0x1f, 1); /* PLL_MULT */ 675 } else { 676 div = bypass_div[((value >> 2) & 3)]; /* BYPASS_DIV */ 677 mult = 1; 678 } 679 omap_clk_setrate(omap_findclk(s, "dpll4"), div, mult); 680 } 681 682 /* Enter the desired mode. */ 683 s->ulpd_pm_regs[addr >> 2] = 684 (s->ulpd_pm_regs[addr >> 2] & 0xfffe) | 685 ((s->ulpd_pm_regs[addr >> 2] >> 4) & 1); 686 687 /* Act as if the lock is restored. */ 688 s->ulpd_pm_regs[addr >> 2] |= 2; 689 break; 690 691 case 0x4c: /* APLL_CTRL */ 692 diff = s->ulpd_pm_regs[addr >> 2] & value; 693 s->ulpd_pm_regs[addr >> 2] = value & 0xf; 694 if (diff & (1 << 0)) /* APLL_NDPLL_SWITCH */ 695 omap_clk_reparent(omap_findclk(s, "ck_48m"), omap_findclk(s, 696 (value & (1 << 0)) ? "apll" : "dpll4")); 697 break; 698 699 default: 700 OMAP_BAD_REG(addr); 701 } 702 } 703 704 static const MemoryRegionOps omap_ulpd_pm_ops = { 705 .read = omap_ulpd_pm_read, 706 .write = omap_ulpd_pm_write, 707 .endianness = DEVICE_NATIVE_ENDIAN, 708 }; 709 710 static void omap_ulpd_pm_reset(struct omap_mpu_state_s *mpu) 711 { 712 mpu->ulpd_pm_regs[0x00 >> 2] = 0x0001; 713 mpu->ulpd_pm_regs[0x04 >> 2] = 0x0000; 714 mpu->ulpd_pm_regs[0x08 >> 2] = 0x0001; 715 mpu->ulpd_pm_regs[0x0c >> 2] = 0x0000; 716 mpu->ulpd_pm_regs[0x10 >> 2] = 0x0000; 717 mpu->ulpd_pm_regs[0x18 >> 2] = 0x01; 718 mpu->ulpd_pm_regs[0x1c >> 2] = 0x01; 719 mpu->ulpd_pm_regs[0x20 >> 2] = 0x01; 720 mpu->ulpd_pm_regs[0x24 >> 2] = 0x03ff; 721 mpu->ulpd_pm_regs[0x28 >> 2] = 0x01; 722 mpu->ulpd_pm_regs[0x2c >> 2] = 0x01; 723 omap_ulpd_clk_update(mpu, mpu->ulpd_pm_regs[0x30 >> 2], 0x0000); 724 mpu->ulpd_pm_regs[0x30 >> 2] = 0x0000; 725 omap_ulpd_req_update(mpu, mpu->ulpd_pm_regs[0x34 >> 2], 0x0000); 726 mpu->ulpd_pm_regs[0x34 >> 2] = 0x0000; 727 mpu->ulpd_pm_regs[0x38 >> 2] = 0x0001; 728 mpu->ulpd_pm_regs[0x3c >> 2] = 0x2211; 729 mpu->ulpd_pm_regs[0x40 >> 2] = 0x0000; /* FIXME: dump a real STATUS_REQ */ 730 mpu->ulpd_pm_regs[0x48 >> 2] = 0x960; 731 mpu->ulpd_pm_regs[0x4c >> 2] = 0x08; 732 mpu->ulpd_pm_regs[0x50 >> 2] = 0x08; 733 omap_clk_setrate(omap_findclk(mpu, "dpll4"), 1, 4); 734 omap_clk_reparent(omap_findclk(mpu, "ck_48m"), omap_findclk(mpu, "dpll4")); 735 } 736 737 static void omap_ulpd_pm_init(MemoryRegion *system_memory, 738 hwaddr base, 739 struct omap_mpu_state_s *mpu) 740 { 741 memory_region_init_io(&mpu->ulpd_pm_iomem, NULL, &omap_ulpd_pm_ops, mpu, 742 "omap-ulpd-pm", 0x800); 743 memory_region_add_subregion(system_memory, base, &mpu->ulpd_pm_iomem); 744 omap_ulpd_pm_reset(mpu); 745 } 746 747 /* OMAP Pin Configuration */ 748 static uint64_t omap_pin_cfg_read(void *opaque, hwaddr addr, 749 unsigned size) 750 { 751 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 752 753 if (size != 4) { 754 return omap_badwidth_read32(opaque, addr); 755 } 756 757 switch (addr) { 758 case 0x00: /* FUNC_MUX_CTRL_0 */ 759 case 0x04: /* FUNC_MUX_CTRL_1 */ 760 case 0x08: /* FUNC_MUX_CTRL_2 */ 761 return s->func_mux_ctrl[addr >> 2]; 762 763 case 0x0c: /* COMP_MODE_CTRL_0 */ 764 return s->comp_mode_ctrl[0]; 765 766 case 0x10: /* FUNC_MUX_CTRL_3 */ 767 case 0x14: /* FUNC_MUX_CTRL_4 */ 768 case 0x18: /* FUNC_MUX_CTRL_5 */ 769 case 0x1c: /* FUNC_MUX_CTRL_6 */ 770 case 0x20: /* FUNC_MUX_CTRL_7 */ 771 case 0x24: /* FUNC_MUX_CTRL_8 */ 772 case 0x28: /* FUNC_MUX_CTRL_9 */ 773 case 0x2c: /* FUNC_MUX_CTRL_A */ 774 case 0x30: /* FUNC_MUX_CTRL_B */ 775 case 0x34: /* FUNC_MUX_CTRL_C */ 776 case 0x38: /* FUNC_MUX_CTRL_D */ 777 return s->func_mux_ctrl[(addr >> 2) - 1]; 778 779 case 0x40: /* PULL_DWN_CTRL_0 */ 780 case 0x44: /* PULL_DWN_CTRL_1 */ 781 case 0x48: /* PULL_DWN_CTRL_2 */ 782 case 0x4c: /* PULL_DWN_CTRL_3 */ 783 return s->pull_dwn_ctrl[(addr & 0xf) >> 2]; 784 785 case 0x50: /* GATE_INH_CTRL_0 */ 786 return s->gate_inh_ctrl[0]; 787 788 case 0x60: /* VOLTAGE_CTRL_0 */ 789 return s->voltage_ctrl[0]; 790 791 case 0x70: /* TEST_DBG_CTRL_0 */ 792 return s->test_dbg_ctrl[0]; 793 794 case 0x80: /* MOD_CONF_CTRL_0 */ 795 return s->mod_conf_ctrl[0]; 796 } 797 798 OMAP_BAD_REG(addr); 799 return 0; 800 } 801 802 static inline void omap_pin_funcmux0_update(struct omap_mpu_state_s *s, 803 uint32_t diff, uint32_t value) 804 { 805 if (s->compat1509) { 806 if (diff & (1 << 9)) /* BLUETOOTH */ 807 omap_clk_onoff(omap_findclk(s, "bt_mclk_out"), 808 (~value >> 9) & 1); 809 if (diff & (1 << 7)) /* USB.CLKO */ 810 omap_clk_onoff(omap_findclk(s, "usb.clko"), 811 (value >> 7) & 1); 812 } 813 } 814 815 static inline void omap_pin_funcmux1_update(struct omap_mpu_state_s *s, 816 uint32_t diff, uint32_t value) 817 { 818 if (s->compat1509) { 819 if (diff & (1U << 31)) { 820 /* MCBSP3_CLK_HIZ_DI */ 821 omap_clk_onoff(omap_findclk(s, "mcbsp3.clkx"), (value >> 31) & 1); 822 } 823 if (diff & (1 << 1)) { 824 /* CLK32K */ 825 omap_clk_onoff(omap_findclk(s, "clk32k_out"), (~value >> 1) & 1); 826 } 827 } 828 } 829 830 static inline void omap_pin_modconf1_update(struct omap_mpu_state_s *s, 831 uint32_t diff, uint32_t value) 832 { 833 if (diff & (1U << 31)) { 834 /* CONF_MOD_UART3_CLK_MODE_R */ 835 omap_clk_reparent(omap_findclk(s, "uart3_ck"), 836 omap_findclk(s, ((value >> 31) & 1) ? 837 "ck_48m" : "armper_ck")); 838 } 839 if (diff & (1 << 30)) /* CONF_MOD_UART2_CLK_MODE_R */ 840 omap_clk_reparent(omap_findclk(s, "uart2_ck"), 841 omap_findclk(s, ((value >> 30) & 1) ? 842 "ck_48m" : "armper_ck")); 843 if (diff & (1 << 29)) /* CONF_MOD_UART1_CLK_MODE_R */ 844 omap_clk_reparent(omap_findclk(s, "uart1_ck"), 845 omap_findclk(s, ((value >> 29) & 1) ? 846 "ck_48m" : "armper_ck")); 847 if (diff & (1 << 23)) /* CONF_MOD_MMC_SD_CLK_REQ_R */ 848 omap_clk_reparent(omap_findclk(s, "mmc_ck"), 849 omap_findclk(s, ((value >> 23) & 1) ? 850 "ck_48m" : "armper_ck")); 851 if (diff & (1 << 12)) /* CONF_MOD_COM_MCLK_12_48_S */ 852 omap_clk_reparent(omap_findclk(s, "com_mclk_out"), 853 omap_findclk(s, ((value >> 12) & 1) ? 854 "ck_48m" : "armper_ck")); 855 if (diff & (1 << 9)) /* CONF_MOD_USB_HOST_HHC_UHO */ 856 omap_clk_onoff(omap_findclk(s, "usb_hhc_ck"), (value >> 9) & 1); 857 } 858 859 static void omap_pin_cfg_write(void *opaque, hwaddr addr, 860 uint64_t value, unsigned size) 861 { 862 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 863 uint32_t diff; 864 865 if (size != 4) { 866 omap_badwidth_write32(opaque, addr, value); 867 return; 868 } 869 870 switch (addr) { 871 case 0x00: /* FUNC_MUX_CTRL_0 */ 872 diff = s->func_mux_ctrl[addr >> 2] ^ value; 873 s->func_mux_ctrl[addr >> 2] = value; 874 omap_pin_funcmux0_update(s, diff, value); 875 return; 876 877 case 0x04: /* FUNC_MUX_CTRL_1 */ 878 diff = s->func_mux_ctrl[addr >> 2] ^ value; 879 s->func_mux_ctrl[addr >> 2] = value; 880 omap_pin_funcmux1_update(s, diff, value); 881 return; 882 883 case 0x08: /* FUNC_MUX_CTRL_2 */ 884 s->func_mux_ctrl[addr >> 2] = value; 885 return; 886 887 case 0x0c: /* COMP_MODE_CTRL_0 */ 888 s->comp_mode_ctrl[0] = value; 889 s->compat1509 = (value != 0x0000eaef); 890 omap_pin_funcmux0_update(s, ~0, s->func_mux_ctrl[0]); 891 omap_pin_funcmux1_update(s, ~0, s->func_mux_ctrl[1]); 892 return; 893 894 case 0x10: /* FUNC_MUX_CTRL_3 */ 895 case 0x14: /* FUNC_MUX_CTRL_4 */ 896 case 0x18: /* FUNC_MUX_CTRL_5 */ 897 case 0x1c: /* FUNC_MUX_CTRL_6 */ 898 case 0x20: /* FUNC_MUX_CTRL_7 */ 899 case 0x24: /* FUNC_MUX_CTRL_8 */ 900 case 0x28: /* FUNC_MUX_CTRL_9 */ 901 case 0x2c: /* FUNC_MUX_CTRL_A */ 902 case 0x30: /* FUNC_MUX_CTRL_B */ 903 case 0x34: /* FUNC_MUX_CTRL_C */ 904 case 0x38: /* FUNC_MUX_CTRL_D */ 905 s->func_mux_ctrl[(addr >> 2) - 1] = value; 906 return; 907 908 case 0x40: /* PULL_DWN_CTRL_0 */ 909 case 0x44: /* PULL_DWN_CTRL_1 */ 910 case 0x48: /* PULL_DWN_CTRL_2 */ 911 case 0x4c: /* PULL_DWN_CTRL_3 */ 912 s->pull_dwn_ctrl[(addr & 0xf) >> 2] = value; 913 return; 914 915 case 0x50: /* GATE_INH_CTRL_0 */ 916 s->gate_inh_ctrl[0] = value; 917 return; 918 919 case 0x60: /* VOLTAGE_CTRL_0 */ 920 s->voltage_ctrl[0] = value; 921 return; 922 923 case 0x70: /* TEST_DBG_CTRL_0 */ 924 s->test_dbg_ctrl[0] = value; 925 return; 926 927 case 0x80: /* MOD_CONF_CTRL_0 */ 928 diff = s->mod_conf_ctrl[0] ^ value; 929 s->mod_conf_ctrl[0] = value; 930 omap_pin_modconf1_update(s, diff, value); 931 return; 932 933 default: 934 OMAP_BAD_REG(addr); 935 } 936 } 937 938 static const MemoryRegionOps omap_pin_cfg_ops = { 939 .read = omap_pin_cfg_read, 940 .write = omap_pin_cfg_write, 941 .endianness = DEVICE_NATIVE_ENDIAN, 942 }; 943 944 static void omap_pin_cfg_reset(struct omap_mpu_state_s *mpu) 945 { 946 /* Start in Compatibility Mode. */ 947 mpu->compat1509 = 1; 948 omap_pin_funcmux0_update(mpu, mpu->func_mux_ctrl[0], 0); 949 omap_pin_funcmux1_update(mpu, mpu->func_mux_ctrl[1], 0); 950 omap_pin_modconf1_update(mpu, mpu->mod_conf_ctrl[0], 0); 951 memset(mpu->func_mux_ctrl, 0, sizeof(mpu->func_mux_ctrl)); 952 memset(mpu->comp_mode_ctrl, 0, sizeof(mpu->comp_mode_ctrl)); 953 memset(mpu->pull_dwn_ctrl, 0, sizeof(mpu->pull_dwn_ctrl)); 954 memset(mpu->gate_inh_ctrl, 0, sizeof(mpu->gate_inh_ctrl)); 955 memset(mpu->voltage_ctrl, 0, sizeof(mpu->voltage_ctrl)); 956 memset(mpu->test_dbg_ctrl, 0, sizeof(mpu->test_dbg_ctrl)); 957 memset(mpu->mod_conf_ctrl, 0, sizeof(mpu->mod_conf_ctrl)); 958 } 959 960 static void omap_pin_cfg_init(MemoryRegion *system_memory, 961 hwaddr base, 962 struct omap_mpu_state_s *mpu) 963 { 964 memory_region_init_io(&mpu->pin_cfg_iomem, NULL, &omap_pin_cfg_ops, mpu, 965 "omap-pin-cfg", 0x800); 966 memory_region_add_subregion(system_memory, base, &mpu->pin_cfg_iomem); 967 omap_pin_cfg_reset(mpu); 968 } 969 970 /* Device Identification, Die Identification */ 971 static uint64_t omap_id_read(void *opaque, hwaddr addr, 972 unsigned size) 973 { 974 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 975 976 if (size != 4) { 977 return omap_badwidth_read32(opaque, addr); 978 } 979 980 switch (addr) { 981 case 0xfffe1800: /* DIE_ID_LSB */ 982 return 0xc9581f0e; 983 case 0xfffe1804: /* DIE_ID_MSB */ 984 return 0xa8858bfa; 985 986 case 0xfffe2000: /* PRODUCT_ID_LSB */ 987 return 0x00aaaafc; 988 case 0xfffe2004: /* PRODUCT_ID_MSB */ 989 return 0xcafeb574; 990 991 case 0xfffed400: /* JTAG_ID_LSB */ 992 switch (s->mpu_model) { 993 case omap310: 994 return 0x03310315; 995 case omap1510: 996 return 0x03310115; 997 default: 998 hw_error("%s: bad mpu model\n", __FUNCTION__); 999 } 1000 break; 1001 1002 case 0xfffed404: /* JTAG_ID_MSB */ 1003 switch (s->mpu_model) { 1004 case omap310: 1005 return 0xfb57402f; 1006 case omap1510: 1007 return 0xfb47002f; 1008 default: 1009 hw_error("%s: bad mpu model\n", __FUNCTION__); 1010 } 1011 break; 1012 } 1013 1014 OMAP_BAD_REG(addr); 1015 return 0; 1016 } 1017 1018 static void omap_id_write(void *opaque, hwaddr addr, 1019 uint64_t value, unsigned size) 1020 { 1021 if (size != 4) { 1022 omap_badwidth_write32(opaque, addr, value); 1023 return; 1024 } 1025 1026 OMAP_BAD_REG(addr); 1027 } 1028 1029 static const MemoryRegionOps omap_id_ops = { 1030 .read = omap_id_read, 1031 .write = omap_id_write, 1032 .endianness = DEVICE_NATIVE_ENDIAN, 1033 }; 1034 1035 static void omap_id_init(MemoryRegion *memory, struct omap_mpu_state_s *mpu) 1036 { 1037 memory_region_init_io(&mpu->id_iomem, NULL, &omap_id_ops, mpu, 1038 "omap-id", 0x100000000ULL); 1039 memory_region_init_alias(&mpu->id_iomem_e18, NULL, "omap-id-e18", &mpu->id_iomem, 1040 0xfffe1800, 0x800); 1041 memory_region_add_subregion(memory, 0xfffe1800, &mpu->id_iomem_e18); 1042 memory_region_init_alias(&mpu->id_iomem_ed4, NULL, "omap-id-ed4", &mpu->id_iomem, 1043 0xfffed400, 0x100); 1044 memory_region_add_subregion(memory, 0xfffed400, &mpu->id_iomem_ed4); 1045 if (!cpu_is_omap15xx(mpu)) { 1046 memory_region_init_alias(&mpu->id_iomem_ed4, NULL, "omap-id-e20", 1047 &mpu->id_iomem, 0xfffe2000, 0x800); 1048 memory_region_add_subregion(memory, 0xfffe2000, &mpu->id_iomem_e20); 1049 } 1050 } 1051 1052 /* MPUI Control (Dummy) */ 1053 static uint64_t omap_mpui_read(void *opaque, hwaddr addr, 1054 unsigned size) 1055 { 1056 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 1057 1058 if (size != 4) { 1059 return omap_badwidth_read32(opaque, addr); 1060 } 1061 1062 switch (addr) { 1063 case 0x00: /* CTRL */ 1064 return s->mpui_ctrl; 1065 case 0x04: /* DEBUG_ADDR */ 1066 return 0x01ffffff; 1067 case 0x08: /* DEBUG_DATA */ 1068 return 0xffffffff; 1069 case 0x0c: /* DEBUG_FLAG */ 1070 return 0x00000800; 1071 case 0x10: /* STATUS */ 1072 return 0x00000000; 1073 1074 /* Not in OMAP310 */ 1075 case 0x14: /* DSP_STATUS */ 1076 case 0x18: /* DSP_BOOT_CONFIG */ 1077 return 0x00000000; 1078 case 0x1c: /* DSP_MPUI_CONFIG */ 1079 return 0x0000ffff; 1080 } 1081 1082 OMAP_BAD_REG(addr); 1083 return 0; 1084 } 1085 1086 static void omap_mpui_write(void *opaque, hwaddr addr, 1087 uint64_t value, unsigned size) 1088 { 1089 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 1090 1091 if (size != 4) { 1092 omap_badwidth_write32(opaque, addr, value); 1093 return; 1094 } 1095 1096 switch (addr) { 1097 case 0x00: /* CTRL */ 1098 s->mpui_ctrl = value & 0x007fffff; 1099 break; 1100 1101 case 0x04: /* DEBUG_ADDR */ 1102 case 0x08: /* DEBUG_DATA */ 1103 case 0x0c: /* DEBUG_FLAG */ 1104 case 0x10: /* STATUS */ 1105 /* Not in OMAP310 */ 1106 case 0x14: /* DSP_STATUS */ 1107 OMAP_RO_REG(addr); 1108 break; 1109 case 0x18: /* DSP_BOOT_CONFIG */ 1110 case 0x1c: /* DSP_MPUI_CONFIG */ 1111 break; 1112 1113 default: 1114 OMAP_BAD_REG(addr); 1115 } 1116 } 1117 1118 static const MemoryRegionOps omap_mpui_ops = { 1119 .read = omap_mpui_read, 1120 .write = omap_mpui_write, 1121 .endianness = DEVICE_NATIVE_ENDIAN, 1122 }; 1123 1124 static void omap_mpui_reset(struct omap_mpu_state_s *s) 1125 { 1126 s->mpui_ctrl = 0x0003ff1b; 1127 } 1128 1129 static void omap_mpui_init(MemoryRegion *memory, hwaddr base, 1130 struct omap_mpu_state_s *mpu) 1131 { 1132 memory_region_init_io(&mpu->mpui_iomem, NULL, &omap_mpui_ops, mpu, 1133 "omap-mpui", 0x100); 1134 memory_region_add_subregion(memory, base, &mpu->mpui_iomem); 1135 1136 omap_mpui_reset(mpu); 1137 } 1138 1139 /* TIPB Bridges */ 1140 struct omap_tipb_bridge_s { 1141 qemu_irq abort; 1142 MemoryRegion iomem; 1143 1144 int width_intr; 1145 uint16_t control; 1146 uint16_t alloc; 1147 uint16_t buffer; 1148 uint16_t enh_control; 1149 }; 1150 1151 static uint64_t omap_tipb_bridge_read(void *opaque, hwaddr addr, 1152 unsigned size) 1153 { 1154 struct omap_tipb_bridge_s *s = (struct omap_tipb_bridge_s *) opaque; 1155 1156 if (size < 2) { 1157 return omap_badwidth_read16(opaque, addr); 1158 } 1159 1160 switch (addr) { 1161 case 0x00: /* TIPB_CNTL */ 1162 return s->control; 1163 case 0x04: /* TIPB_BUS_ALLOC */ 1164 return s->alloc; 1165 case 0x08: /* MPU_TIPB_CNTL */ 1166 return s->buffer; 1167 case 0x0c: /* ENHANCED_TIPB_CNTL */ 1168 return s->enh_control; 1169 case 0x10: /* ADDRESS_DBG */ 1170 case 0x14: /* DATA_DEBUG_LOW */ 1171 case 0x18: /* DATA_DEBUG_HIGH */ 1172 return 0xffff; 1173 case 0x1c: /* DEBUG_CNTR_SIG */ 1174 return 0x00f8; 1175 } 1176 1177 OMAP_BAD_REG(addr); 1178 return 0; 1179 } 1180 1181 static void omap_tipb_bridge_write(void *opaque, hwaddr addr, 1182 uint64_t value, unsigned size) 1183 { 1184 struct omap_tipb_bridge_s *s = (struct omap_tipb_bridge_s *) opaque; 1185 1186 if (size < 2) { 1187 omap_badwidth_write16(opaque, addr, value); 1188 return; 1189 } 1190 1191 switch (addr) { 1192 case 0x00: /* TIPB_CNTL */ 1193 s->control = value & 0xffff; 1194 break; 1195 1196 case 0x04: /* TIPB_BUS_ALLOC */ 1197 s->alloc = value & 0x003f; 1198 break; 1199 1200 case 0x08: /* MPU_TIPB_CNTL */ 1201 s->buffer = value & 0x0003; 1202 break; 1203 1204 case 0x0c: /* ENHANCED_TIPB_CNTL */ 1205 s->width_intr = !(value & 2); 1206 s->enh_control = value & 0x000f; 1207 break; 1208 1209 case 0x10: /* ADDRESS_DBG */ 1210 case 0x14: /* DATA_DEBUG_LOW */ 1211 case 0x18: /* DATA_DEBUG_HIGH */ 1212 case 0x1c: /* DEBUG_CNTR_SIG */ 1213 OMAP_RO_REG(addr); 1214 break; 1215 1216 default: 1217 OMAP_BAD_REG(addr); 1218 } 1219 } 1220 1221 static const MemoryRegionOps omap_tipb_bridge_ops = { 1222 .read = omap_tipb_bridge_read, 1223 .write = omap_tipb_bridge_write, 1224 .endianness = DEVICE_NATIVE_ENDIAN, 1225 }; 1226 1227 static void omap_tipb_bridge_reset(struct omap_tipb_bridge_s *s) 1228 { 1229 s->control = 0xffff; 1230 s->alloc = 0x0009; 1231 s->buffer = 0x0000; 1232 s->enh_control = 0x000f; 1233 } 1234 1235 static struct omap_tipb_bridge_s *omap_tipb_bridge_init( 1236 MemoryRegion *memory, hwaddr base, 1237 qemu_irq abort_irq, omap_clk clk) 1238 { 1239 struct omap_tipb_bridge_s *s = (struct omap_tipb_bridge_s *) 1240 g_malloc0(sizeof(struct omap_tipb_bridge_s)); 1241 1242 s->abort = abort_irq; 1243 omap_tipb_bridge_reset(s); 1244 1245 memory_region_init_io(&s->iomem, NULL, &omap_tipb_bridge_ops, s, 1246 "omap-tipb-bridge", 0x100); 1247 memory_region_add_subregion(memory, base, &s->iomem); 1248 1249 return s; 1250 } 1251 1252 /* Dummy Traffic Controller's Memory Interface */ 1253 static uint64_t omap_tcmi_read(void *opaque, hwaddr addr, 1254 unsigned size) 1255 { 1256 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 1257 uint32_t ret; 1258 1259 if (size != 4) { 1260 return omap_badwidth_read32(opaque, addr); 1261 } 1262 1263 switch (addr) { 1264 case 0x00: /* IMIF_PRIO */ 1265 case 0x04: /* EMIFS_PRIO */ 1266 case 0x08: /* EMIFF_PRIO */ 1267 case 0x0c: /* EMIFS_CONFIG */ 1268 case 0x10: /* EMIFS_CS0_CONFIG */ 1269 case 0x14: /* EMIFS_CS1_CONFIG */ 1270 case 0x18: /* EMIFS_CS2_CONFIG */ 1271 case 0x1c: /* EMIFS_CS3_CONFIG */ 1272 case 0x24: /* EMIFF_MRS */ 1273 case 0x28: /* TIMEOUT1 */ 1274 case 0x2c: /* TIMEOUT2 */ 1275 case 0x30: /* TIMEOUT3 */ 1276 case 0x3c: /* EMIFF_SDRAM_CONFIG_2 */ 1277 case 0x40: /* EMIFS_CFG_DYN_WAIT */ 1278 return s->tcmi_regs[addr >> 2]; 1279 1280 case 0x20: /* EMIFF_SDRAM_CONFIG */ 1281 ret = s->tcmi_regs[addr >> 2]; 1282 s->tcmi_regs[addr >> 2] &= ~1; /* XXX: Clear SLRF on SDRAM access */ 1283 /* XXX: We can try using the VGA_DIRTY flag for this */ 1284 return ret; 1285 } 1286 1287 OMAP_BAD_REG(addr); 1288 return 0; 1289 } 1290 1291 static void omap_tcmi_write(void *opaque, hwaddr addr, 1292 uint64_t value, unsigned size) 1293 { 1294 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 1295 1296 if (size != 4) { 1297 omap_badwidth_write32(opaque, addr, value); 1298 return; 1299 } 1300 1301 switch (addr) { 1302 case 0x00: /* IMIF_PRIO */ 1303 case 0x04: /* EMIFS_PRIO */ 1304 case 0x08: /* EMIFF_PRIO */ 1305 case 0x10: /* EMIFS_CS0_CONFIG */ 1306 case 0x14: /* EMIFS_CS1_CONFIG */ 1307 case 0x18: /* EMIFS_CS2_CONFIG */ 1308 case 0x1c: /* EMIFS_CS3_CONFIG */ 1309 case 0x20: /* EMIFF_SDRAM_CONFIG */ 1310 case 0x24: /* EMIFF_MRS */ 1311 case 0x28: /* TIMEOUT1 */ 1312 case 0x2c: /* TIMEOUT2 */ 1313 case 0x30: /* TIMEOUT3 */ 1314 case 0x3c: /* EMIFF_SDRAM_CONFIG_2 */ 1315 case 0x40: /* EMIFS_CFG_DYN_WAIT */ 1316 s->tcmi_regs[addr >> 2] = value; 1317 break; 1318 case 0x0c: /* EMIFS_CONFIG */ 1319 s->tcmi_regs[addr >> 2] = (value & 0xf) | (1 << 4); 1320 break; 1321 1322 default: 1323 OMAP_BAD_REG(addr); 1324 } 1325 } 1326 1327 static const MemoryRegionOps omap_tcmi_ops = { 1328 .read = omap_tcmi_read, 1329 .write = omap_tcmi_write, 1330 .endianness = DEVICE_NATIVE_ENDIAN, 1331 }; 1332 1333 static void omap_tcmi_reset(struct omap_mpu_state_s *mpu) 1334 { 1335 mpu->tcmi_regs[0x00 >> 2] = 0x00000000; 1336 mpu->tcmi_regs[0x04 >> 2] = 0x00000000; 1337 mpu->tcmi_regs[0x08 >> 2] = 0x00000000; 1338 mpu->tcmi_regs[0x0c >> 2] = 0x00000010; 1339 mpu->tcmi_regs[0x10 >> 2] = 0x0010fffb; 1340 mpu->tcmi_regs[0x14 >> 2] = 0x0010fffb; 1341 mpu->tcmi_regs[0x18 >> 2] = 0x0010fffb; 1342 mpu->tcmi_regs[0x1c >> 2] = 0x0010fffb; 1343 mpu->tcmi_regs[0x20 >> 2] = 0x00618800; 1344 mpu->tcmi_regs[0x24 >> 2] = 0x00000037; 1345 mpu->tcmi_regs[0x28 >> 2] = 0x00000000; 1346 mpu->tcmi_regs[0x2c >> 2] = 0x00000000; 1347 mpu->tcmi_regs[0x30 >> 2] = 0x00000000; 1348 mpu->tcmi_regs[0x3c >> 2] = 0x00000003; 1349 mpu->tcmi_regs[0x40 >> 2] = 0x00000000; 1350 } 1351 1352 static void omap_tcmi_init(MemoryRegion *memory, hwaddr base, 1353 struct omap_mpu_state_s *mpu) 1354 { 1355 memory_region_init_io(&mpu->tcmi_iomem, NULL, &omap_tcmi_ops, mpu, 1356 "omap-tcmi", 0x100); 1357 memory_region_add_subregion(memory, base, &mpu->tcmi_iomem); 1358 omap_tcmi_reset(mpu); 1359 } 1360 1361 /* Digital phase-locked loops control */ 1362 struct dpll_ctl_s { 1363 MemoryRegion iomem; 1364 uint16_t mode; 1365 omap_clk dpll; 1366 }; 1367 1368 static uint64_t omap_dpll_read(void *opaque, hwaddr addr, 1369 unsigned size) 1370 { 1371 struct dpll_ctl_s *s = (struct dpll_ctl_s *) opaque; 1372 1373 if (size != 2) { 1374 return omap_badwidth_read16(opaque, addr); 1375 } 1376 1377 if (addr == 0x00) /* CTL_REG */ 1378 return s->mode; 1379 1380 OMAP_BAD_REG(addr); 1381 return 0; 1382 } 1383 1384 static void omap_dpll_write(void *opaque, hwaddr addr, 1385 uint64_t value, unsigned size) 1386 { 1387 struct dpll_ctl_s *s = (struct dpll_ctl_s *) opaque; 1388 uint16_t diff; 1389 static const int bypass_div[4] = { 1, 2, 4, 4 }; 1390 int div, mult; 1391 1392 if (size != 2) { 1393 omap_badwidth_write16(opaque, addr, value); 1394 return; 1395 } 1396 1397 if (addr == 0x00) { /* CTL_REG */ 1398 /* See omap_ulpd_pm_write() too */ 1399 diff = s->mode & value; 1400 s->mode = value & 0x2fff; 1401 if (diff & (0x3ff << 2)) { 1402 if (value & (1 << 4)) { /* PLL_ENABLE */ 1403 div = ((value >> 5) & 3) + 1; /* PLL_DIV */ 1404 mult = MIN((value >> 7) & 0x1f, 1); /* PLL_MULT */ 1405 } else { 1406 div = bypass_div[((value >> 2) & 3)]; /* BYPASS_DIV */ 1407 mult = 1; 1408 } 1409 omap_clk_setrate(s->dpll, div, mult); 1410 } 1411 1412 /* Enter the desired mode. */ 1413 s->mode = (s->mode & 0xfffe) | ((s->mode >> 4) & 1); 1414 1415 /* Act as if the lock is restored. */ 1416 s->mode |= 2; 1417 } else { 1418 OMAP_BAD_REG(addr); 1419 } 1420 } 1421 1422 static const MemoryRegionOps omap_dpll_ops = { 1423 .read = omap_dpll_read, 1424 .write = omap_dpll_write, 1425 .endianness = DEVICE_NATIVE_ENDIAN, 1426 }; 1427 1428 static void omap_dpll_reset(struct dpll_ctl_s *s) 1429 { 1430 s->mode = 0x2002; 1431 omap_clk_setrate(s->dpll, 1, 1); 1432 } 1433 1434 static struct dpll_ctl_s *omap_dpll_init(MemoryRegion *memory, 1435 hwaddr base, omap_clk clk) 1436 { 1437 struct dpll_ctl_s *s = g_malloc0(sizeof(*s)); 1438 memory_region_init_io(&s->iomem, NULL, &omap_dpll_ops, s, "omap-dpll", 0x100); 1439 1440 s->dpll = clk; 1441 omap_dpll_reset(s); 1442 1443 memory_region_add_subregion(memory, base, &s->iomem); 1444 return s; 1445 } 1446 1447 /* MPU Clock/Reset/Power Mode Control */ 1448 static uint64_t omap_clkm_read(void *opaque, hwaddr addr, 1449 unsigned size) 1450 { 1451 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 1452 1453 if (size != 2) { 1454 return omap_badwidth_read16(opaque, addr); 1455 } 1456 1457 switch (addr) { 1458 case 0x00: /* ARM_CKCTL */ 1459 return s->clkm.arm_ckctl; 1460 1461 case 0x04: /* ARM_IDLECT1 */ 1462 return s->clkm.arm_idlect1; 1463 1464 case 0x08: /* ARM_IDLECT2 */ 1465 return s->clkm.arm_idlect2; 1466 1467 case 0x0c: /* ARM_EWUPCT */ 1468 return s->clkm.arm_ewupct; 1469 1470 case 0x10: /* ARM_RSTCT1 */ 1471 return s->clkm.arm_rstct1; 1472 1473 case 0x14: /* ARM_RSTCT2 */ 1474 return s->clkm.arm_rstct2; 1475 1476 case 0x18: /* ARM_SYSST */ 1477 return (s->clkm.clocking_scheme << 11) | s->clkm.cold_start; 1478 1479 case 0x1c: /* ARM_CKOUT1 */ 1480 return s->clkm.arm_ckout1; 1481 1482 case 0x20: /* ARM_CKOUT2 */ 1483 break; 1484 } 1485 1486 OMAP_BAD_REG(addr); 1487 return 0; 1488 } 1489 1490 static inline void omap_clkm_ckctl_update(struct omap_mpu_state_s *s, 1491 uint16_t diff, uint16_t value) 1492 { 1493 omap_clk clk; 1494 1495 if (diff & (1 << 14)) { /* ARM_INTHCK_SEL */ 1496 if (value & (1 << 14)) 1497 /* Reserved */; 1498 else { 1499 clk = omap_findclk(s, "arminth_ck"); 1500 omap_clk_reparent(clk, omap_findclk(s, "tc_ck")); 1501 } 1502 } 1503 if (diff & (1 << 12)) { /* ARM_TIMXO */ 1504 clk = omap_findclk(s, "armtim_ck"); 1505 if (value & (1 << 12)) 1506 omap_clk_reparent(clk, omap_findclk(s, "clkin")); 1507 else 1508 omap_clk_reparent(clk, omap_findclk(s, "ck_gen1")); 1509 } 1510 /* XXX: en_dspck */ 1511 if (diff & (3 << 10)) { /* DSPMMUDIV */ 1512 clk = omap_findclk(s, "dspmmu_ck"); 1513 omap_clk_setrate(clk, 1 << ((value >> 10) & 3), 1); 1514 } 1515 if (diff & (3 << 8)) { /* TCDIV */ 1516 clk = omap_findclk(s, "tc_ck"); 1517 omap_clk_setrate(clk, 1 << ((value >> 8) & 3), 1); 1518 } 1519 if (diff & (3 << 6)) { /* DSPDIV */ 1520 clk = omap_findclk(s, "dsp_ck"); 1521 omap_clk_setrate(clk, 1 << ((value >> 6) & 3), 1); 1522 } 1523 if (diff & (3 << 4)) { /* ARMDIV */ 1524 clk = omap_findclk(s, "arm_ck"); 1525 omap_clk_setrate(clk, 1 << ((value >> 4) & 3), 1); 1526 } 1527 if (diff & (3 << 2)) { /* LCDDIV */ 1528 clk = omap_findclk(s, "lcd_ck"); 1529 omap_clk_setrate(clk, 1 << ((value >> 2) & 3), 1); 1530 } 1531 if (diff & (3 << 0)) { /* PERDIV */ 1532 clk = omap_findclk(s, "armper_ck"); 1533 omap_clk_setrate(clk, 1 << ((value >> 0) & 3), 1); 1534 } 1535 } 1536 1537 static inline void omap_clkm_idlect1_update(struct omap_mpu_state_s *s, 1538 uint16_t diff, uint16_t value) 1539 { 1540 omap_clk clk; 1541 1542 if (value & (1 << 11)) { /* SETARM_IDLE */ 1543 cpu_interrupt(CPU(s->cpu), CPU_INTERRUPT_HALT); 1544 } 1545 if (!(value & (1 << 10))) /* WKUP_MODE */ 1546 qemu_system_shutdown_request(); /* XXX: disable wakeup from IRQ */ 1547 1548 #define SET_CANIDLE(clock, bit) \ 1549 if (diff & (1 << bit)) { \ 1550 clk = omap_findclk(s, clock); \ 1551 omap_clk_canidle(clk, (value >> bit) & 1); \ 1552 } 1553 SET_CANIDLE("mpuwd_ck", 0) /* IDLWDT_ARM */ 1554 SET_CANIDLE("armxor_ck", 1) /* IDLXORP_ARM */ 1555 SET_CANIDLE("mpuper_ck", 2) /* IDLPER_ARM */ 1556 SET_CANIDLE("lcd_ck", 3) /* IDLLCD_ARM */ 1557 SET_CANIDLE("lb_ck", 4) /* IDLLB_ARM */ 1558 SET_CANIDLE("hsab_ck", 5) /* IDLHSAB_ARM */ 1559 SET_CANIDLE("tipb_ck", 6) /* IDLIF_ARM */ 1560 SET_CANIDLE("dma_ck", 6) /* IDLIF_ARM */ 1561 SET_CANIDLE("tc_ck", 6) /* IDLIF_ARM */ 1562 SET_CANIDLE("dpll1", 7) /* IDLDPLL_ARM */ 1563 SET_CANIDLE("dpll2", 7) /* IDLDPLL_ARM */ 1564 SET_CANIDLE("dpll3", 7) /* IDLDPLL_ARM */ 1565 SET_CANIDLE("mpui_ck", 8) /* IDLAPI_ARM */ 1566 SET_CANIDLE("armtim_ck", 9) /* IDLTIM_ARM */ 1567 } 1568 1569 static inline void omap_clkm_idlect2_update(struct omap_mpu_state_s *s, 1570 uint16_t diff, uint16_t value) 1571 { 1572 omap_clk clk; 1573 1574 #define SET_ONOFF(clock, bit) \ 1575 if (diff & (1 << bit)) { \ 1576 clk = omap_findclk(s, clock); \ 1577 omap_clk_onoff(clk, (value >> bit) & 1); \ 1578 } 1579 SET_ONOFF("mpuwd_ck", 0) /* EN_WDTCK */ 1580 SET_ONOFF("armxor_ck", 1) /* EN_XORPCK */ 1581 SET_ONOFF("mpuper_ck", 2) /* EN_PERCK */ 1582 SET_ONOFF("lcd_ck", 3) /* EN_LCDCK */ 1583 SET_ONOFF("lb_ck", 4) /* EN_LBCK */ 1584 SET_ONOFF("hsab_ck", 5) /* EN_HSABCK */ 1585 SET_ONOFF("mpui_ck", 6) /* EN_APICK */ 1586 SET_ONOFF("armtim_ck", 7) /* EN_TIMCK */ 1587 SET_CANIDLE("dma_ck", 8) /* DMACK_REQ */ 1588 SET_ONOFF("arm_gpio_ck", 9) /* EN_GPIOCK */ 1589 SET_ONOFF("lbfree_ck", 10) /* EN_LBFREECK */ 1590 } 1591 1592 static inline void omap_clkm_ckout1_update(struct omap_mpu_state_s *s, 1593 uint16_t diff, uint16_t value) 1594 { 1595 omap_clk clk; 1596 1597 if (diff & (3 << 4)) { /* TCLKOUT */ 1598 clk = omap_findclk(s, "tclk_out"); 1599 switch ((value >> 4) & 3) { 1600 case 1: 1601 omap_clk_reparent(clk, omap_findclk(s, "ck_gen3")); 1602 omap_clk_onoff(clk, 1); 1603 break; 1604 case 2: 1605 omap_clk_reparent(clk, omap_findclk(s, "tc_ck")); 1606 omap_clk_onoff(clk, 1); 1607 break; 1608 default: 1609 omap_clk_onoff(clk, 0); 1610 } 1611 } 1612 if (diff & (3 << 2)) { /* DCLKOUT */ 1613 clk = omap_findclk(s, "dclk_out"); 1614 switch ((value >> 2) & 3) { 1615 case 0: 1616 omap_clk_reparent(clk, omap_findclk(s, "dspmmu_ck")); 1617 break; 1618 case 1: 1619 omap_clk_reparent(clk, omap_findclk(s, "ck_gen2")); 1620 break; 1621 case 2: 1622 omap_clk_reparent(clk, omap_findclk(s, "dsp_ck")); 1623 break; 1624 case 3: 1625 omap_clk_reparent(clk, omap_findclk(s, "ck_ref14")); 1626 break; 1627 } 1628 } 1629 if (diff & (3 << 0)) { /* ACLKOUT */ 1630 clk = omap_findclk(s, "aclk_out"); 1631 switch ((value >> 0) & 3) { 1632 case 1: 1633 omap_clk_reparent(clk, omap_findclk(s, "ck_gen1")); 1634 omap_clk_onoff(clk, 1); 1635 break; 1636 case 2: 1637 omap_clk_reparent(clk, omap_findclk(s, "arm_ck")); 1638 omap_clk_onoff(clk, 1); 1639 break; 1640 case 3: 1641 omap_clk_reparent(clk, omap_findclk(s, "ck_ref14")); 1642 omap_clk_onoff(clk, 1); 1643 break; 1644 default: 1645 omap_clk_onoff(clk, 0); 1646 } 1647 } 1648 } 1649 1650 static void omap_clkm_write(void *opaque, hwaddr addr, 1651 uint64_t value, unsigned size) 1652 { 1653 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 1654 uint16_t diff; 1655 omap_clk clk; 1656 static const char *clkschemename[8] = { 1657 "fully synchronous", "fully asynchronous", "synchronous scalable", 1658 "mix mode 1", "mix mode 2", "bypass mode", "mix mode 3", "mix mode 4", 1659 }; 1660 1661 if (size != 2) { 1662 omap_badwidth_write16(opaque, addr, value); 1663 return; 1664 } 1665 1666 switch (addr) { 1667 case 0x00: /* ARM_CKCTL */ 1668 diff = s->clkm.arm_ckctl ^ value; 1669 s->clkm.arm_ckctl = value & 0x7fff; 1670 omap_clkm_ckctl_update(s, diff, value); 1671 return; 1672 1673 case 0x04: /* ARM_IDLECT1 */ 1674 diff = s->clkm.arm_idlect1 ^ value; 1675 s->clkm.arm_idlect1 = value & 0x0fff; 1676 omap_clkm_idlect1_update(s, diff, value); 1677 return; 1678 1679 case 0x08: /* ARM_IDLECT2 */ 1680 diff = s->clkm.arm_idlect2 ^ value; 1681 s->clkm.arm_idlect2 = value & 0x07ff; 1682 omap_clkm_idlect2_update(s, diff, value); 1683 return; 1684 1685 case 0x0c: /* ARM_EWUPCT */ 1686 s->clkm.arm_ewupct = value & 0x003f; 1687 return; 1688 1689 case 0x10: /* ARM_RSTCT1 */ 1690 diff = s->clkm.arm_rstct1 ^ value; 1691 s->clkm.arm_rstct1 = value & 0x0007; 1692 if (value & 9) { 1693 qemu_system_reset_request(); 1694 s->clkm.cold_start = 0xa; 1695 } 1696 if (diff & ~value & 4) { /* DSP_RST */ 1697 omap_mpui_reset(s); 1698 omap_tipb_bridge_reset(s->private_tipb); 1699 omap_tipb_bridge_reset(s->public_tipb); 1700 } 1701 if (diff & 2) { /* DSP_EN */ 1702 clk = omap_findclk(s, "dsp_ck"); 1703 omap_clk_canidle(clk, (~value >> 1) & 1); 1704 } 1705 return; 1706 1707 case 0x14: /* ARM_RSTCT2 */ 1708 s->clkm.arm_rstct2 = value & 0x0001; 1709 return; 1710 1711 case 0x18: /* ARM_SYSST */ 1712 if ((s->clkm.clocking_scheme ^ (value >> 11)) & 7) { 1713 s->clkm.clocking_scheme = (value >> 11) & 7; 1714 printf("%s: clocking scheme set to %s\n", __FUNCTION__, 1715 clkschemename[s->clkm.clocking_scheme]); 1716 } 1717 s->clkm.cold_start &= value & 0x3f; 1718 return; 1719 1720 case 0x1c: /* ARM_CKOUT1 */ 1721 diff = s->clkm.arm_ckout1 ^ value; 1722 s->clkm.arm_ckout1 = value & 0x003f; 1723 omap_clkm_ckout1_update(s, diff, value); 1724 return; 1725 1726 case 0x20: /* ARM_CKOUT2 */ 1727 default: 1728 OMAP_BAD_REG(addr); 1729 } 1730 } 1731 1732 static const MemoryRegionOps omap_clkm_ops = { 1733 .read = omap_clkm_read, 1734 .write = omap_clkm_write, 1735 .endianness = DEVICE_NATIVE_ENDIAN, 1736 }; 1737 1738 static uint64_t omap_clkdsp_read(void *opaque, hwaddr addr, 1739 unsigned size) 1740 { 1741 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 1742 CPUState *cpu = CPU(s->cpu); 1743 1744 if (size != 2) { 1745 return omap_badwidth_read16(opaque, addr); 1746 } 1747 1748 switch (addr) { 1749 case 0x04: /* DSP_IDLECT1 */ 1750 return s->clkm.dsp_idlect1; 1751 1752 case 0x08: /* DSP_IDLECT2 */ 1753 return s->clkm.dsp_idlect2; 1754 1755 case 0x14: /* DSP_RSTCT2 */ 1756 return s->clkm.dsp_rstct2; 1757 1758 case 0x18: /* DSP_SYSST */ 1759 cpu = CPU(s->cpu); 1760 return (s->clkm.clocking_scheme << 11) | s->clkm.cold_start | 1761 (cpu->halted << 6); /* Quite useless... */ 1762 } 1763 1764 OMAP_BAD_REG(addr); 1765 return 0; 1766 } 1767 1768 static inline void omap_clkdsp_idlect1_update(struct omap_mpu_state_s *s, 1769 uint16_t diff, uint16_t value) 1770 { 1771 omap_clk clk; 1772 1773 SET_CANIDLE("dspxor_ck", 1); /* IDLXORP_DSP */ 1774 } 1775 1776 static inline void omap_clkdsp_idlect2_update(struct omap_mpu_state_s *s, 1777 uint16_t diff, uint16_t value) 1778 { 1779 omap_clk clk; 1780 1781 SET_ONOFF("dspxor_ck", 1); /* EN_XORPCK */ 1782 } 1783 1784 static void omap_clkdsp_write(void *opaque, hwaddr addr, 1785 uint64_t value, unsigned size) 1786 { 1787 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque; 1788 uint16_t diff; 1789 1790 if (size != 2) { 1791 omap_badwidth_write16(opaque, addr, value); 1792 return; 1793 } 1794 1795 switch (addr) { 1796 case 0x04: /* DSP_IDLECT1 */ 1797 diff = s->clkm.dsp_idlect1 ^ value; 1798 s->clkm.dsp_idlect1 = value & 0x01f7; 1799 omap_clkdsp_idlect1_update(s, diff, value); 1800 break; 1801 1802 case 0x08: /* DSP_IDLECT2 */ 1803 s->clkm.dsp_idlect2 = value & 0x0037; 1804 diff = s->clkm.dsp_idlect1 ^ value; 1805 omap_clkdsp_idlect2_update(s, diff, value); 1806 break; 1807 1808 case 0x14: /* DSP_RSTCT2 */ 1809 s->clkm.dsp_rstct2 = value & 0x0001; 1810 break; 1811 1812 case 0x18: /* DSP_SYSST */ 1813 s->clkm.cold_start &= value & 0x3f; 1814 break; 1815 1816 default: 1817 OMAP_BAD_REG(addr); 1818 } 1819 } 1820 1821 static const MemoryRegionOps omap_clkdsp_ops = { 1822 .read = omap_clkdsp_read, 1823 .write = omap_clkdsp_write, 1824 .endianness = DEVICE_NATIVE_ENDIAN, 1825 }; 1826 1827 static void omap_clkm_reset(struct omap_mpu_state_s *s) 1828 { 1829 if (s->wdt && s->wdt->reset) 1830 s->clkm.cold_start = 0x6; 1831 s->clkm.clocking_scheme = 0; 1832 omap_clkm_ckctl_update(s, ~0, 0x3000); 1833 s->clkm.arm_ckctl = 0x3000; 1834 omap_clkm_idlect1_update(s, s->clkm.arm_idlect1 ^ 0x0400, 0x0400); 1835 s->clkm.arm_idlect1 = 0x0400; 1836 omap_clkm_idlect2_update(s, s->clkm.arm_idlect2 ^ 0x0100, 0x0100); 1837 s->clkm.arm_idlect2 = 0x0100; 1838 s->clkm.arm_ewupct = 0x003f; 1839 s->clkm.arm_rstct1 = 0x0000; 1840 s->clkm.arm_rstct2 = 0x0000; 1841 s->clkm.arm_ckout1 = 0x0015; 1842 s->clkm.dpll1_mode = 0x2002; 1843 omap_clkdsp_idlect1_update(s, s->clkm.dsp_idlect1 ^ 0x0040, 0x0040); 1844 s->clkm.dsp_idlect1 = 0x0040; 1845 omap_clkdsp_idlect2_update(s, ~0, 0x0000); 1846 s->clkm.dsp_idlect2 = 0x0000; 1847 s->clkm.dsp_rstct2 = 0x0000; 1848 } 1849 1850 static void omap_clkm_init(MemoryRegion *memory, hwaddr mpu_base, 1851 hwaddr dsp_base, struct omap_mpu_state_s *s) 1852 { 1853 memory_region_init_io(&s->clkm_iomem, NULL, &omap_clkm_ops, s, 1854 "omap-clkm", 0x100); 1855 memory_region_init_io(&s->clkdsp_iomem, NULL, &omap_clkdsp_ops, s, 1856 "omap-clkdsp", 0x1000); 1857 1858 s->clkm.arm_idlect1 = 0x03ff; 1859 s->clkm.arm_idlect2 = 0x0100; 1860 s->clkm.dsp_idlect1 = 0x0002; 1861 omap_clkm_reset(s); 1862 s->clkm.cold_start = 0x3a; 1863 1864 memory_region_add_subregion(memory, mpu_base, &s->clkm_iomem); 1865 memory_region_add_subregion(memory, dsp_base, &s->clkdsp_iomem); 1866 } 1867 1868 /* MPU I/O */ 1869 struct omap_mpuio_s { 1870 qemu_irq irq; 1871 qemu_irq kbd_irq; 1872 qemu_irq *in; 1873 qemu_irq handler[16]; 1874 qemu_irq wakeup; 1875 MemoryRegion iomem; 1876 1877 uint16_t inputs; 1878 uint16_t outputs; 1879 uint16_t dir; 1880 uint16_t edge; 1881 uint16_t mask; 1882 uint16_t ints; 1883 1884 uint16_t debounce; 1885 uint16_t latch; 1886 uint8_t event; 1887 1888 uint8_t buttons[5]; 1889 uint8_t row_latch; 1890 uint8_t cols; 1891 int kbd_mask; 1892 int clk; 1893 }; 1894 1895 static void omap_mpuio_set(void *opaque, int line, int level) 1896 { 1897 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque; 1898 uint16_t prev = s->inputs; 1899 1900 if (level) 1901 s->inputs |= 1 << line; 1902 else 1903 s->inputs &= ~(1 << line); 1904 1905 if (((1 << line) & s->dir & ~s->mask) && s->clk) { 1906 if ((s->edge & s->inputs & ~prev) | (~s->edge & ~s->inputs & prev)) { 1907 s->ints |= 1 << line; 1908 qemu_irq_raise(s->irq); 1909 /* TODO: wakeup */ 1910 } 1911 if ((s->event & (1 << 0)) && /* SET_GPIO_EVENT_MODE */ 1912 (s->event >> 1) == line) /* PIN_SELECT */ 1913 s->latch = s->inputs; 1914 } 1915 } 1916 1917 static void omap_mpuio_kbd_update(struct omap_mpuio_s *s) 1918 { 1919 int i; 1920 uint8_t *row, rows = 0, cols = ~s->cols; 1921 1922 for (row = s->buttons + 4, i = 1 << 4; i; row --, i >>= 1) 1923 if (*row & cols) 1924 rows |= i; 1925 1926 qemu_set_irq(s->kbd_irq, rows && !s->kbd_mask && s->clk); 1927 s->row_latch = ~rows; 1928 } 1929 1930 static uint64_t omap_mpuio_read(void *opaque, hwaddr addr, 1931 unsigned size) 1932 { 1933 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque; 1934 int offset = addr & OMAP_MPUI_REG_MASK; 1935 uint16_t ret; 1936 1937 if (size != 2) { 1938 return omap_badwidth_read16(opaque, addr); 1939 } 1940 1941 switch (offset) { 1942 case 0x00: /* INPUT_LATCH */ 1943 return s->inputs; 1944 1945 case 0x04: /* OUTPUT_REG */ 1946 return s->outputs; 1947 1948 case 0x08: /* IO_CNTL */ 1949 return s->dir; 1950 1951 case 0x10: /* KBR_LATCH */ 1952 return s->row_latch; 1953 1954 case 0x14: /* KBC_REG */ 1955 return s->cols; 1956 1957 case 0x18: /* GPIO_EVENT_MODE_REG */ 1958 return s->event; 1959 1960 case 0x1c: /* GPIO_INT_EDGE_REG */ 1961 return s->edge; 1962 1963 case 0x20: /* KBD_INT */ 1964 return (~s->row_latch & 0x1f) && !s->kbd_mask; 1965 1966 case 0x24: /* GPIO_INT */ 1967 ret = s->ints; 1968 s->ints &= s->mask; 1969 if (ret) 1970 qemu_irq_lower(s->irq); 1971 return ret; 1972 1973 case 0x28: /* KBD_MASKIT */ 1974 return s->kbd_mask; 1975 1976 case 0x2c: /* GPIO_MASKIT */ 1977 return s->mask; 1978 1979 case 0x30: /* GPIO_DEBOUNCING_REG */ 1980 return s->debounce; 1981 1982 case 0x34: /* GPIO_LATCH_REG */ 1983 return s->latch; 1984 } 1985 1986 OMAP_BAD_REG(addr); 1987 return 0; 1988 } 1989 1990 static void omap_mpuio_write(void *opaque, hwaddr addr, 1991 uint64_t value, unsigned size) 1992 { 1993 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque; 1994 int offset = addr & OMAP_MPUI_REG_MASK; 1995 uint16_t diff; 1996 int ln; 1997 1998 if (size != 2) { 1999 omap_badwidth_write16(opaque, addr, value); 2000 return; 2001 } 2002 2003 switch (offset) { 2004 case 0x04: /* OUTPUT_REG */ 2005 diff = (s->outputs ^ value) & ~s->dir; 2006 s->outputs = value; 2007 while ((ln = ctz32(diff)) != 32) { 2008 if (s->handler[ln]) 2009 qemu_set_irq(s->handler[ln], (value >> ln) & 1); 2010 diff &= ~(1 << ln); 2011 } 2012 break; 2013 2014 case 0x08: /* IO_CNTL */ 2015 diff = s->outputs & (s->dir ^ value); 2016 s->dir = value; 2017 2018 value = s->outputs & ~s->dir; 2019 while ((ln = ctz32(diff)) != 32) { 2020 if (s->handler[ln]) 2021 qemu_set_irq(s->handler[ln], (value >> ln) & 1); 2022 diff &= ~(1 << ln); 2023 } 2024 break; 2025 2026 case 0x14: /* KBC_REG */ 2027 s->cols = value; 2028 omap_mpuio_kbd_update(s); 2029 break; 2030 2031 case 0x18: /* GPIO_EVENT_MODE_REG */ 2032 s->event = value & 0x1f; 2033 break; 2034 2035 case 0x1c: /* GPIO_INT_EDGE_REG */ 2036 s->edge = value; 2037 break; 2038 2039 case 0x28: /* KBD_MASKIT */ 2040 s->kbd_mask = value & 1; 2041 omap_mpuio_kbd_update(s); 2042 break; 2043 2044 case 0x2c: /* GPIO_MASKIT */ 2045 s->mask = value; 2046 break; 2047 2048 case 0x30: /* GPIO_DEBOUNCING_REG */ 2049 s->debounce = value & 0x1ff; 2050 break; 2051 2052 case 0x00: /* INPUT_LATCH */ 2053 case 0x10: /* KBR_LATCH */ 2054 case 0x20: /* KBD_INT */ 2055 case 0x24: /* GPIO_INT */ 2056 case 0x34: /* GPIO_LATCH_REG */ 2057 OMAP_RO_REG(addr); 2058 return; 2059 2060 default: 2061 OMAP_BAD_REG(addr); 2062 return; 2063 } 2064 } 2065 2066 static const MemoryRegionOps omap_mpuio_ops = { 2067 .read = omap_mpuio_read, 2068 .write = omap_mpuio_write, 2069 .endianness = DEVICE_NATIVE_ENDIAN, 2070 }; 2071 2072 static void omap_mpuio_reset(struct omap_mpuio_s *s) 2073 { 2074 s->inputs = 0; 2075 s->outputs = 0; 2076 s->dir = ~0; 2077 s->event = 0; 2078 s->edge = 0; 2079 s->kbd_mask = 0; 2080 s->mask = 0; 2081 s->debounce = 0; 2082 s->latch = 0; 2083 s->ints = 0; 2084 s->row_latch = 0x1f; 2085 s->clk = 1; 2086 } 2087 2088 static void omap_mpuio_onoff(void *opaque, int line, int on) 2089 { 2090 struct omap_mpuio_s *s = (struct omap_mpuio_s *) opaque; 2091 2092 s->clk = on; 2093 if (on) 2094 omap_mpuio_kbd_update(s); 2095 } 2096 2097 static struct omap_mpuio_s *omap_mpuio_init(MemoryRegion *memory, 2098 hwaddr base, 2099 qemu_irq kbd_int, qemu_irq gpio_int, qemu_irq wakeup, 2100 omap_clk clk) 2101 { 2102 struct omap_mpuio_s *s = (struct omap_mpuio_s *) 2103 g_malloc0(sizeof(struct omap_mpuio_s)); 2104 2105 s->irq = gpio_int; 2106 s->kbd_irq = kbd_int; 2107 s->wakeup = wakeup; 2108 s->in = qemu_allocate_irqs(omap_mpuio_set, s, 16); 2109 omap_mpuio_reset(s); 2110 2111 memory_region_init_io(&s->iomem, NULL, &omap_mpuio_ops, s, 2112 "omap-mpuio", 0x800); 2113 memory_region_add_subregion(memory, base, &s->iomem); 2114 2115 omap_clk_adduser(clk, qemu_allocate_irq(omap_mpuio_onoff, s, 0)); 2116 2117 return s; 2118 } 2119 2120 qemu_irq *omap_mpuio_in_get(struct omap_mpuio_s *s) 2121 { 2122 return s->in; 2123 } 2124 2125 void omap_mpuio_out_set(struct omap_mpuio_s *s, int line, qemu_irq handler) 2126 { 2127 if (line >= 16 || line < 0) 2128 hw_error("%s: No GPIO line %i\n", __FUNCTION__, line); 2129 s->handler[line] = handler; 2130 } 2131 2132 void omap_mpuio_key(struct omap_mpuio_s *s, int row, int col, int down) 2133 { 2134 if (row >= 5 || row < 0) 2135 hw_error("%s: No key %i-%i\n", __FUNCTION__, col, row); 2136 2137 if (down) 2138 s->buttons[row] |= 1 << col; 2139 else 2140 s->buttons[row] &= ~(1 << col); 2141 2142 omap_mpuio_kbd_update(s); 2143 } 2144 2145 /* MicroWire Interface */ 2146 struct omap_uwire_s { 2147 MemoryRegion iomem; 2148 qemu_irq txirq; 2149 qemu_irq rxirq; 2150 qemu_irq txdrq; 2151 2152 uint16_t txbuf; 2153 uint16_t rxbuf; 2154 uint16_t control; 2155 uint16_t setup[5]; 2156 2157 uWireSlave *chip[4]; 2158 }; 2159 2160 static void omap_uwire_transfer_start(struct omap_uwire_s *s) 2161 { 2162 int chipselect = (s->control >> 10) & 3; /* INDEX */ 2163 uWireSlave *slave = s->chip[chipselect]; 2164 2165 if ((s->control >> 5) & 0x1f) { /* NB_BITS_WR */ 2166 if (s->control & (1 << 12)) /* CS_CMD */ 2167 if (slave && slave->send) 2168 slave->send(slave->opaque, 2169 s->txbuf >> (16 - ((s->control >> 5) & 0x1f))); 2170 s->control &= ~(1 << 14); /* CSRB */ 2171 /* TODO: depending on s->setup[4] bits [1:0] assert an IRQ or 2172 * a DRQ. When is the level IRQ supposed to be reset? */ 2173 } 2174 2175 if ((s->control >> 0) & 0x1f) { /* NB_BITS_RD */ 2176 if (s->control & (1 << 12)) /* CS_CMD */ 2177 if (slave && slave->receive) 2178 s->rxbuf = slave->receive(slave->opaque); 2179 s->control |= 1 << 15; /* RDRB */ 2180 /* TODO: depending on s->setup[4] bits [1:0] assert an IRQ or 2181 * a DRQ. When is the level IRQ supposed to be reset? */ 2182 } 2183 } 2184 2185 static uint64_t omap_uwire_read(void *opaque, hwaddr addr, 2186 unsigned size) 2187 { 2188 struct omap_uwire_s *s = (struct omap_uwire_s *) opaque; 2189 int offset = addr & OMAP_MPUI_REG_MASK; 2190 2191 if (size != 2) { 2192 return omap_badwidth_read16(opaque, addr); 2193 } 2194 2195 switch (offset) { 2196 case 0x00: /* RDR */ 2197 s->control &= ~(1 << 15); /* RDRB */ 2198 return s->rxbuf; 2199 2200 case 0x04: /* CSR */ 2201 return s->control; 2202 2203 case 0x08: /* SR1 */ 2204 return s->setup[0]; 2205 case 0x0c: /* SR2 */ 2206 return s->setup[1]; 2207 case 0x10: /* SR3 */ 2208 return s->setup[2]; 2209 case 0x14: /* SR4 */ 2210 return s->setup[3]; 2211 case 0x18: /* SR5 */ 2212 return s->setup[4]; 2213 } 2214 2215 OMAP_BAD_REG(addr); 2216 return 0; 2217 } 2218 2219 static void omap_uwire_write(void *opaque, hwaddr addr, 2220 uint64_t value, unsigned size) 2221 { 2222 struct omap_uwire_s *s = (struct omap_uwire_s *) opaque; 2223 int offset = addr & OMAP_MPUI_REG_MASK; 2224 2225 if (size != 2) { 2226 omap_badwidth_write16(opaque, addr, value); 2227 return; 2228 } 2229 2230 switch (offset) { 2231 case 0x00: /* TDR */ 2232 s->txbuf = value; /* TD */ 2233 if ((s->setup[4] & (1 << 2)) && /* AUTO_TX_EN */ 2234 ((s->setup[4] & (1 << 3)) || /* CS_TOGGLE_TX_EN */ 2235 (s->control & (1 << 12)))) { /* CS_CMD */ 2236 s->control |= 1 << 14; /* CSRB */ 2237 omap_uwire_transfer_start(s); 2238 } 2239 break; 2240 2241 case 0x04: /* CSR */ 2242 s->control = value & 0x1fff; 2243 if (value & (1 << 13)) /* START */ 2244 omap_uwire_transfer_start(s); 2245 break; 2246 2247 case 0x08: /* SR1 */ 2248 s->setup[0] = value & 0x003f; 2249 break; 2250 2251 case 0x0c: /* SR2 */ 2252 s->setup[1] = value & 0x0fc0; 2253 break; 2254 2255 case 0x10: /* SR3 */ 2256 s->setup[2] = value & 0x0003; 2257 break; 2258 2259 case 0x14: /* SR4 */ 2260 s->setup[3] = value & 0x0001; 2261 break; 2262 2263 case 0x18: /* SR5 */ 2264 s->setup[4] = value & 0x000f; 2265 break; 2266 2267 default: 2268 OMAP_BAD_REG(addr); 2269 return; 2270 } 2271 } 2272 2273 static const MemoryRegionOps omap_uwire_ops = { 2274 .read = omap_uwire_read, 2275 .write = omap_uwire_write, 2276 .endianness = DEVICE_NATIVE_ENDIAN, 2277 }; 2278 2279 static void omap_uwire_reset(struct omap_uwire_s *s) 2280 { 2281 s->control = 0; 2282 s->setup[0] = 0; 2283 s->setup[1] = 0; 2284 s->setup[2] = 0; 2285 s->setup[3] = 0; 2286 s->setup[4] = 0; 2287 } 2288 2289 static struct omap_uwire_s *omap_uwire_init(MemoryRegion *system_memory, 2290 hwaddr base, 2291 qemu_irq txirq, qemu_irq rxirq, 2292 qemu_irq dma, 2293 omap_clk clk) 2294 { 2295 struct omap_uwire_s *s = (struct omap_uwire_s *) 2296 g_malloc0(sizeof(struct omap_uwire_s)); 2297 2298 s->txirq = txirq; 2299 s->rxirq = rxirq; 2300 s->txdrq = dma; 2301 omap_uwire_reset(s); 2302 2303 memory_region_init_io(&s->iomem, NULL, &omap_uwire_ops, s, "omap-uwire", 0x800); 2304 memory_region_add_subregion(system_memory, base, &s->iomem); 2305 2306 return s; 2307 } 2308 2309 void omap_uwire_attach(struct omap_uwire_s *s, 2310 uWireSlave *slave, int chipselect) 2311 { 2312 if (chipselect < 0 || chipselect > 3) { 2313 fprintf(stderr, "%s: Bad chipselect %i\n", __FUNCTION__, chipselect); 2314 exit(-1); 2315 } 2316 2317 s->chip[chipselect] = slave; 2318 } 2319 2320 /* Pseudonoise Pulse-Width Light Modulator */ 2321 struct omap_pwl_s { 2322 MemoryRegion iomem; 2323 uint8_t output; 2324 uint8_t level; 2325 uint8_t enable; 2326 int clk; 2327 }; 2328 2329 static void omap_pwl_update(struct omap_pwl_s *s) 2330 { 2331 int output = (s->clk && s->enable) ? s->level : 0; 2332 2333 if (output != s->output) { 2334 s->output = output; 2335 printf("%s: Backlight now at %i/256\n", __FUNCTION__, output); 2336 } 2337 } 2338 2339 static uint64_t omap_pwl_read(void *opaque, hwaddr addr, 2340 unsigned size) 2341 { 2342 struct omap_pwl_s *s = (struct omap_pwl_s *) opaque; 2343 int offset = addr & OMAP_MPUI_REG_MASK; 2344 2345 if (size != 1) { 2346 return omap_badwidth_read8(opaque, addr); 2347 } 2348 2349 switch (offset) { 2350 case 0x00: /* PWL_LEVEL */ 2351 return s->level; 2352 case 0x04: /* PWL_CTRL */ 2353 return s->enable; 2354 } 2355 OMAP_BAD_REG(addr); 2356 return 0; 2357 } 2358 2359 static void omap_pwl_write(void *opaque, hwaddr addr, 2360 uint64_t value, unsigned size) 2361 { 2362 struct omap_pwl_s *s = (struct omap_pwl_s *) opaque; 2363 int offset = addr & OMAP_MPUI_REG_MASK; 2364 2365 if (size != 1) { 2366 omap_badwidth_write8(opaque, addr, value); 2367 return; 2368 } 2369 2370 switch (offset) { 2371 case 0x00: /* PWL_LEVEL */ 2372 s->level = value; 2373 omap_pwl_update(s); 2374 break; 2375 case 0x04: /* PWL_CTRL */ 2376 s->enable = value & 1; 2377 omap_pwl_update(s); 2378 break; 2379 default: 2380 OMAP_BAD_REG(addr); 2381 return; 2382 } 2383 } 2384 2385 static const MemoryRegionOps omap_pwl_ops = { 2386 .read = omap_pwl_read, 2387 .write = omap_pwl_write, 2388 .endianness = DEVICE_NATIVE_ENDIAN, 2389 }; 2390 2391 static void omap_pwl_reset(struct omap_pwl_s *s) 2392 { 2393 s->output = 0; 2394 s->level = 0; 2395 s->enable = 0; 2396 s->clk = 1; 2397 omap_pwl_update(s); 2398 } 2399 2400 static void omap_pwl_clk_update(void *opaque, int line, int on) 2401 { 2402 struct omap_pwl_s *s = (struct omap_pwl_s *) opaque; 2403 2404 s->clk = on; 2405 omap_pwl_update(s); 2406 } 2407 2408 static struct omap_pwl_s *omap_pwl_init(MemoryRegion *system_memory, 2409 hwaddr base, 2410 omap_clk clk) 2411 { 2412 struct omap_pwl_s *s = g_malloc0(sizeof(*s)); 2413 2414 omap_pwl_reset(s); 2415 2416 memory_region_init_io(&s->iomem, NULL, &omap_pwl_ops, s, 2417 "omap-pwl", 0x800); 2418 memory_region_add_subregion(system_memory, base, &s->iomem); 2419 2420 omap_clk_adduser(clk, qemu_allocate_irq(omap_pwl_clk_update, s, 0)); 2421 return s; 2422 } 2423 2424 /* Pulse-Width Tone module */ 2425 struct omap_pwt_s { 2426 MemoryRegion iomem; 2427 uint8_t frc; 2428 uint8_t vrc; 2429 uint8_t gcr; 2430 omap_clk clk; 2431 }; 2432 2433 static uint64_t omap_pwt_read(void *opaque, hwaddr addr, 2434 unsigned size) 2435 { 2436 struct omap_pwt_s *s = (struct omap_pwt_s *) opaque; 2437 int offset = addr & OMAP_MPUI_REG_MASK; 2438 2439 if (size != 1) { 2440 return omap_badwidth_read8(opaque, addr); 2441 } 2442 2443 switch (offset) { 2444 case 0x00: /* FRC */ 2445 return s->frc; 2446 case 0x04: /* VCR */ 2447 return s->vrc; 2448 case 0x08: /* GCR */ 2449 return s->gcr; 2450 } 2451 OMAP_BAD_REG(addr); 2452 return 0; 2453 } 2454 2455 static void omap_pwt_write(void *opaque, hwaddr addr, 2456 uint64_t value, unsigned size) 2457 { 2458 struct omap_pwt_s *s = (struct omap_pwt_s *) opaque; 2459 int offset = addr & OMAP_MPUI_REG_MASK; 2460 2461 if (size != 1) { 2462 omap_badwidth_write8(opaque, addr, value); 2463 return; 2464 } 2465 2466 switch (offset) { 2467 case 0x00: /* FRC */ 2468 s->frc = value & 0x3f; 2469 break; 2470 case 0x04: /* VRC */ 2471 if ((value ^ s->vrc) & 1) { 2472 if (value & 1) 2473 printf("%s: %iHz buzz on\n", __FUNCTION__, (int) 2474 /* 1.5 MHz from a 12-MHz or 13-MHz PWT_CLK */ 2475 ((omap_clk_getrate(s->clk) >> 3) / 2476 /* Pre-multiplexer divider */ 2477 ((s->gcr & 2) ? 1 : 154) / 2478 /* Octave multiplexer */ 2479 (2 << (value & 3)) * 2480 /* 101/107 divider */ 2481 ((value & (1 << 2)) ? 101 : 107) * 2482 /* 49/55 divider */ 2483 ((value & (1 << 3)) ? 49 : 55) * 2484 /* 50/63 divider */ 2485 ((value & (1 << 4)) ? 50 : 63) * 2486 /* 80/127 divider */ 2487 ((value & (1 << 5)) ? 80 : 127) / 2488 (107 * 55 * 63 * 127))); 2489 else 2490 printf("%s: silence!\n", __FUNCTION__); 2491 } 2492 s->vrc = value & 0x7f; 2493 break; 2494 case 0x08: /* GCR */ 2495 s->gcr = value & 3; 2496 break; 2497 default: 2498 OMAP_BAD_REG(addr); 2499 return; 2500 } 2501 } 2502 2503 static const MemoryRegionOps omap_pwt_ops = { 2504 .read =omap_pwt_read, 2505 .write = omap_pwt_write, 2506 .endianness = DEVICE_NATIVE_ENDIAN, 2507 }; 2508 2509 static void omap_pwt_reset(struct omap_pwt_s *s) 2510 { 2511 s->frc = 0; 2512 s->vrc = 0; 2513 s->gcr = 0; 2514 } 2515 2516 static struct omap_pwt_s *omap_pwt_init(MemoryRegion *system_memory, 2517 hwaddr base, 2518 omap_clk clk) 2519 { 2520 struct omap_pwt_s *s = g_malloc0(sizeof(*s)); 2521 s->clk = clk; 2522 omap_pwt_reset(s); 2523 2524 memory_region_init_io(&s->iomem, NULL, &omap_pwt_ops, s, 2525 "omap-pwt", 0x800); 2526 memory_region_add_subregion(system_memory, base, &s->iomem); 2527 return s; 2528 } 2529 2530 /* Real-time Clock module */ 2531 struct omap_rtc_s { 2532 MemoryRegion iomem; 2533 qemu_irq irq; 2534 qemu_irq alarm; 2535 QEMUTimer *clk; 2536 2537 uint8_t interrupts; 2538 uint8_t status; 2539 int16_t comp_reg; 2540 int running; 2541 int pm_am; 2542 int auto_comp; 2543 int round; 2544 struct tm alarm_tm; 2545 time_t alarm_ti; 2546 2547 struct tm current_tm; 2548 time_t ti; 2549 uint64_t tick; 2550 }; 2551 2552 static void omap_rtc_interrupts_update(struct omap_rtc_s *s) 2553 { 2554 /* s->alarm is level-triggered */ 2555 qemu_set_irq(s->alarm, (s->status >> 6) & 1); 2556 } 2557 2558 static void omap_rtc_alarm_update(struct omap_rtc_s *s) 2559 { 2560 s->alarm_ti = mktimegm(&s->alarm_tm); 2561 if (s->alarm_ti == -1) 2562 printf("%s: conversion failed\n", __FUNCTION__); 2563 } 2564 2565 static uint64_t omap_rtc_read(void *opaque, hwaddr addr, 2566 unsigned size) 2567 { 2568 struct omap_rtc_s *s = (struct omap_rtc_s *) opaque; 2569 int offset = addr & OMAP_MPUI_REG_MASK; 2570 uint8_t i; 2571 2572 if (size != 1) { 2573 return omap_badwidth_read8(opaque, addr); 2574 } 2575 2576 switch (offset) { 2577 case 0x00: /* SECONDS_REG */ 2578 return to_bcd(s->current_tm.tm_sec); 2579 2580 case 0x04: /* MINUTES_REG */ 2581 return to_bcd(s->current_tm.tm_min); 2582 2583 case 0x08: /* HOURS_REG */ 2584 if (s->pm_am) 2585 return ((s->current_tm.tm_hour > 11) << 7) | 2586 to_bcd(((s->current_tm.tm_hour - 1) % 12) + 1); 2587 else 2588 return to_bcd(s->current_tm.tm_hour); 2589 2590 case 0x0c: /* DAYS_REG */ 2591 return to_bcd(s->current_tm.tm_mday); 2592 2593 case 0x10: /* MONTHS_REG */ 2594 return to_bcd(s->current_tm.tm_mon + 1); 2595 2596 case 0x14: /* YEARS_REG */ 2597 return to_bcd(s->current_tm.tm_year % 100); 2598 2599 case 0x18: /* WEEK_REG */ 2600 return s->current_tm.tm_wday; 2601 2602 case 0x20: /* ALARM_SECONDS_REG */ 2603 return to_bcd(s->alarm_tm.tm_sec); 2604 2605 case 0x24: /* ALARM_MINUTES_REG */ 2606 return to_bcd(s->alarm_tm.tm_min); 2607 2608 case 0x28: /* ALARM_HOURS_REG */ 2609 if (s->pm_am) 2610 return ((s->alarm_tm.tm_hour > 11) << 7) | 2611 to_bcd(((s->alarm_tm.tm_hour - 1) % 12) + 1); 2612 else 2613 return to_bcd(s->alarm_tm.tm_hour); 2614 2615 case 0x2c: /* ALARM_DAYS_REG */ 2616 return to_bcd(s->alarm_tm.tm_mday); 2617 2618 case 0x30: /* ALARM_MONTHS_REG */ 2619 return to_bcd(s->alarm_tm.tm_mon + 1); 2620 2621 case 0x34: /* ALARM_YEARS_REG */ 2622 return to_bcd(s->alarm_tm.tm_year % 100); 2623 2624 case 0x40: /* RTC_CTRL_REG */ 2625 return (s->pm_am << 3) | (s->auto_comp << 2) | 2626 (s->round << 1) | s->running; 2627 2628 case 0x44: /* RTC_STATUS_REG */ 2629 i = s->status; 2630 s->status &= ~0x3d; 2631 return i; 2632 2633 case 0x48: /* RTC_INTERRUPTS_REG */ 2634 return s->interrupts; 2635 2636 case 0x4c: /* RTC_COMP_LSB_REG */ 2637 return ((uint16_t) s->comp_reg) & 0xff; 2638 2639 case 0x50: /* RTC_COMP_MSB_REG */ 2640 return ((uint16_t) s->comp_reg) >> 8; 2641 } 2642 2643 OMAP_BAD_REG(addr); 2644 return 0; 2645 } 2646 2647 static void omap_rtc_write(void *opaque, hwaddr addr, 2648 uint64_t value, unsigned size) 2649 { 2650 struct omap_rtc_s *s = (struct omap_rtc_s *) opaque; 2651 int offset = addr & OMAP_MPUI_REG_MASK; 2652 struct tm new_tm; 2653 time_t ti[2]; 2654 2655 if (size != 1) { 2656 omap_badwidth_write8(opaque, addr, value); 2657 return; 2658 } 2659 2660 switch (offset) { 2661 case 0x00: /* SECONDS_REG */ 2662 #ifdef ALMDEBUG 2663 printf("RTC SEC_REG <-- %02x\n", value); 2664 #endif 2665 s->ti -= s->current_tm.tm_sec; 2666 s->ti += from_bcd(value); 2667 return; 2668 2669 case 0x04: /* MINUTES_REG */ 2670 #ifdef ALMDEBUG 2671 printf("RTC MIN_REG <-- %02x\n", value); 2672 #endif 2673 s->ti -= s->current_tm.tm_min * 60; 2674 s->ti += from_bcd(value) * 60; 2675 return; 2676 2677 case 0x08: /* HOURS_REG */ 2678 #ifdef ALMDEBUG 2679 printf("RTC HRS_REG <-- %02x\n", value); 2680 #endif 2681 s->ti -= s->current_tm.tm_hour * 3600; 2682 if (s->pm_am) { 2683 s->ti += (from_bcd(value & 0x3f) & 12) * 3600; 2684 s->ti += ((value >> 7) & 1) * 43200; 2685 } else 2686 s->ti += from_bcd(value & 0x3f) * 3600; 2687 return; 2688 2689 case 0x0c: /* DAYS_REG */ 2690 #ifdef ALMDEBUG 2691 printf("RTC DAY_REG <-- %02x\n", value); 2692 #endif 2693 s->ti -= s->current_tm.tm_mday * 86400; 2694 s->ti += from_bcd(value) * 86400; 2695 return; 2696 2697 case 0x10: /* MONTHS_REG */ 2698 #ifdef ALMDEBUG 2699 printf("RTC MTH_REG <-- %02x\n", value); 2700 #endif 2701 memcpy(&new_tm, &s->current_tm, sizeof(new_tm)); 2702 new_tm.tm_mon = from_bcd(value); 2703 ti[0] = mktimegm(&s->current_tm); 2704 ti[1] = mktimegm(&new_tm); 2705 2706 if (ti[0] != -1 && ti[1] != -1) { 2707 s->ti -= ti[0]; 2708 s->ti += ti[1]; 2709 } else { 2710 /* A less accurate version */ 2711 s->ti -= s->current_tm.tm_mon * 2592000; 2712 s->ti += from_bcd(value) * 2592000; 2713 } 2714 return; 2715 2716 case 0x14: /* YEARS_REG */ 2717 #ifdef ALMDEBUG 2718 printf("RTC YRS_REG <-- %02x\n", value); 2719 #endif 2720 memcpy(&new_tm, &s->current_tm, sizeof(new_tm)); 2721 new_tm.tm_year += from_bcd(value) - (new_tm.tm_year % 100); 2722 ti[0] = mktimegm(&s->current_tm); 2723 ti[1] = mktimegm(&new_tm); 2724 2725 if (ti[0] != -1 && ti[1] != -1) { 2726 s->ti -= ti[0]; 2727 s->ti += ti[1]; 2728 } else { 2729 /* A less accurate version */ 2730 s->ti -= (time_t)(s->current_tm.tm_year % 100) * 31536000; 2731 s->ti += (time_t)from_bcd(value) * 31536000; 2732 } 2733 return; 2734 2735 case 0x18: /* WEEK_REG */ 2736 return; /* Ignored */ 2737 2738 case 0x20: /* ALARM_SECONDS_REG */ 2739 #ifdef ALMDEBUG 2740 printf("ALM SEC_REG <-- %02x\n", value); 2741 #endif 2742 s->alarm_tm.tm_sec = from_bcd(value); 2743 omap_rtc_alarm_update(s); 2744 return; 2745 2746 case 0x24: /* ALARM_MINUTES_REG */ 2747 #ifdef ALMDEBUG 2748 printf("ALM MIN_REG <-- %02x\n", value); 2749 #endif 2750 s->alarm_tm.tm_min = from_bcd(value); 2751 omap_rtc_alarm_update(s); 2752 return; 2753 2754 case 0x28: /* ALARM_HOURS_REG */ 2755 #ifdef ALMDEBUG 2756 printf("ALM HRS_REG <-- %02x\n", value); 2757 #endif 2758 if (s->pm_am) 2759 s->alarm_tm.tm_hour = 2760 ((from_bcd(value & 0x3f)) % 12) + 2761 ((value >> 7) & 1) * 12; 2762 else 2763 s->alarm_tm.tm_hour = from_bcd(value); 2764 omap_rtc_alarm_update(s); 2765 return; 2766 2767 case 0x2c: /* ALARM_DAYS_REG */ 2768 #ifdef ALMDEBUG 2769 printf("ALM DAY_REG <-- %02x\n", value); 2770 #endif 2771 s->alarm_tm.tm_mday = from_bcd(value); 2772 omap_rtc_alarm_update(s); 2773 return; 2774 2775 case 0x30: /* ALARM_MONTHS_REG */ 2776 #ifdef ALMDEBUG 2777 printf("ALM MON_REG <-- %02x\n", value); 2778 #endif 2779 s->alarm_tm.tm_mon = from_bcd(value); 2780 omap_rtc_alarm_update(s); 2781 return; 2782 2783 case 0x34: /* ALARM_YEARS_REG */ 2784 #ifdef ALMDEBUG 2785 printf("ALM YRS_REG <-- %02x\n", value); 2786 #endif 2787 s->alarm_tm.tm_year = from_bcd(value); 2788 omap_rtc_alarm_update(s); 2789 return; 2790 2791 case 0x40: /* RTC_CTRL_REG */ 2792 #ifdef ALMDEBUG 2793 printf("RTC CONTROL <-- %02x\n", value); 2794 #endif 2795 s->pm_am = (value >> 3) & 1; 2796 s->auto_comp = (value >> 2) & 1; 2797 s->round = (value >> 1) & 1; 2798 s->running = value & 1; 2799 s->status &= 0xfd; 2800 s->status |= s->running << 1; 2801 return; 2802 2803 case 0x44: /* RTC_STATUS_REG */ 2804 #ifdef ALMDEBUG 2805 printf("RTC STATUSL <-- %02x\n", value); 2806 #endif 2807 s->status &= ~((value & 0xc0) ^ 0x80); 2808 omap_rtc_interrupts_update(s); 2809 return; 2810 2811 case 0x48: /* RTC_INTERRUPTS_REG */ 2812 #ifdef ALMDEBUG 2813 printf("RTC INTRS <-- %02x\n", value); 2814 #endif 2815 s->interrupts = value; 2816 return; 2817 2818 case 0x4c: /* RTC_COMP_LSB_REG */ 2819 #ifdef ALMDEBUG 2820 printf("RTC COMPLSB <-- %02x\n", value); 2821 #endif 2822 s->comp_reg &= 0xff00; 2823 s->comp_reg |= 0x00ff & value; 2824 return; 2825 2826 case 0x50: /* RTC_COMP_MSB_REG */ 2827 #ifdef ALMDEBUG 2828 printf("RTC COMPMSB <-- %02x\n", value); 2829 #endif 2830 s->comp_reg &= 0x00ff; 2831 s->comp_reg |= 0xff00 & (value << 8); 2832 return; 2833 2834 default: 2835 OMAP_BAD_REG(addr); 2836 return; 2837 } 2838 } 2839 2840 static const MemoryRegionOps omap_rtc_ops = { 2841 .read = omap_rtc_read, 2842 .write = omap_rtc_write, 2843 .endianness = DEVICE_NATIVE_ENDIAN, 2844 }; 2845 2846 static void omap_rtc_tick(void *opaque) 2847 { 2848 struct omap_rtc_s *s = opaque; 2849 2850 if (s->round) { 2851 /* Round to nearest full minute. */ 2852 if (s->current_tm.tm_sec < 30) 2853 s->ti -= s->current_tm.tm_sec; 2854 else 2855 s->ti += 60 - s->current_tm.tm_sec; 2856 2857 s->round = 0; 2858 } 2859 2860 localtime_r(&s->ti, &s->current_tm); 2861 2862 if ((s->interrupts & 0x08) && s->ti == s->alarm_ti) { 2863 s->status |= 0x40; 2864 omap_rtc_interrupts_update(s); 2865 } 2866 2867 if (s->interrupts & 0x04) 2868 switch (s->interrupts & 3) { 2869 case 0: 2870 s->status |= 0x04; 2871 qemu_irq_pulse(s->irq); 2872 break; 2873 case 1: 2874 if (s->current_tm.tm_sec) 2875 break; 2876 s->status |= 0x08; 2877 qemu_irq_pulse(s->irq); 2878 break; 2879 case 2: 2880 if (s->current_tm.tm_sec || s->current_tm.tm_min) 2881 break; 2882 s->status |= 0x10; 2883 qemu_irq_pulse(s->irq); 2884 break; 2885 case 3: 2886 if (s->current_tm.tm_sec || 2887 s->current_tm.tm_min || s->current_tm.tm_hour) 2888 break; 2889 s->status |= 0x20; 2890 qemu_irq_pulse(s->irq); 2891 break; 2892 } 2893 2894 /* Move on */ 2895 if (s->running) 2896 s->ti ++; 2897 s->tick += 1000; 2898 2899 /* 2900 * Every full hour add a rough approximation of the compensation 2901 * register to the 32kHz Timer (which drives the RTC) value. 2902 */ 2903 if (s->auto_comp && !s->current_tm.tm_sec && !s->current_tm.tm_min) 2904 s->tick += s->comp_reg * 1000 / 32768; 2905 2906 timer_mod(s->clk, s->tick); 2907 } 2908 2909 static void omap_rtc_reset(struct omap_rtc_s *s) 2910 { 2911 struct tm tm; 2912 2913 s->interrupts = 0; 2914 s->comp_reg = 0; 2915 s->running = 0; 2916 s->pm_am = 0; 2917 s->auto_comp = 0; 2918 s->round = 0; 2919 s->tick = qemu_clock_get_ms(rtc_clock); 2920 memset(&s->alarm_tm, 0, sizeof(s->alarm_tm)); 2921 s->alarm_tm.tm_mday = 0x01; 2922 s->status = 1 << 7; 2923 qemu_get_timedate(&tm, 0); 2924 s->ti = mktimegm(&tm); 2925 2926 omap_rtc_alarm_update(s); 2927 omap_rtc_tick(s); 2928 } 2929 2930 static struct omap_rtc_s *omap_rtc_init(MemoryRegion *system_memory, 2931 hwaddr base, 2932 qemu_irq timerirq, qemu_irq alarmirq, 2933 omap_clk clk) 2934 { 2935 struct omap_rtc_s *s = (struct omap_rtc_s *) 2936 g_malloc0(sizeof(struct omap_rtc_s)); 2937 2938 s->irq = timerirq; 2939 s->alarm = alarmirq; 2940 s->clk = timer_new_ms(rtc_clock, omap_rtc_tick, s); 2941 2942 omap_rtc_reset(s); 2943 2944 memory_region_init_io(&s->iomem, NULL, &omap_rtc_ops, s, 2945 "omap-rtc", 0x800); 2946 memory_region_add_subregion(system_memory, base, &s->iomem); 2947 2948 return s; 2949 } 2950 2951 /* Multi-channel Buffered Serial Port interfaces */ 2952 struct omap_mcbsp_s { 2953 MemoryRegion iomem; 2954 qemu_irq txirq; 2955 qemu_irq rxirq; 2956 qemu_irq txdrq; 2957 qemu_irq rxdrq; 2958 2959 uint16_t spcr[2]; 2960 uint16_t rcr[2]; 2961 uint16_t xcr[2]; 2962 uint16_t srgr[2]; 2963 uint16_t mcr[2]; 2964 uint16_t pcr; 2965 uint16_t rcer[8]; 2966 uint16_t xcer[8]; 2967 int tx_rate; 2968 int rx_rate; 2969 int tx_req; 2970 int rx_req; 2971 2972 I2SCodec *codec; 2973 QEMUTimer *source_timer; 2974 QEMUTimer *sink_timer; 2975 }; 2976 2977 static void omap_mcbsp_intr_update(struct omap_mcbsp_s *s) 2978 { 2979 int irq; 2980 2981 switch ((s->spcr[0] >> 4) & 3) { /* RINTM */ 2982 case 0: 2983 irq = (s->spcr[0] >> 1) & 1; /* RRDY */ 2984 break; 2985 case 3: 2986 irq = (s->spcr[0] >> 3) & 1; /* RSYNCERR */ 2987 break; 2988 default: 2989 irq = 0; 2990 break; 2991 } 2992 2993 if (irq) 2994 qemu_irq_pulse(s->rxirq); 2995 2996 switch ((s->spcr[1] >> 4) & 3) { /* XINTM */ 2997 case 0: 2998 irq = (s->spcr[1] >> 1) & 1; /* XRDY */ 2999 break; 3000 case 3: 3001 irq = (s->spcr[1] >> 3) & 1; /* XSYNCERR */ 3002 break; 3003 default: 3004 irq = 0; 3005 break; 3006 } 3007 3008 if (irq) 3009 qemu_irq_pulse(s->txirq); 3010 } 3011 3012 static void omap_mcbsp_rx_newdata(struct omap_mcbsp_s *s) 3013 { 3014 if ((s->spcr[0] >> 1) & 1) /* RRDY */ 3015 s->spcr[0] |= 1 << 2; /* RFULL */ 3016 s->spcr[0] |= 1 << 1; /* RRDY */ 3017 qemu_irq_raise(s->rxdrq); 3018 omap_mcbsp_intr_update(s); 3019 } 3020 3021 static void omap_mcbsp_source_tick(void *opaque) 3022 { 3023 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; 3024 static const int bps[8] = { 0, 1, 1, 2, 2, 2, -255, -255 }; 3025 3026 if (!s->rx_rate) 3027 return; 3028 if (s->rx_req) 3029 printf("%s: Rx FIFO overrun\n", __FUNCTION__); 3030 3031 s->rx_req = s->rx_rate << bps[(s->rcr[0] >> 5) & 7]; 3032 3033 omap_mcbsp_rx_newdata(s); 3034 timer_mod(s->source_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 3035 get_ticks_per_sec()); 3036 } 3037 3038 static void omap_mcbsp_rx_start(struct omap_mcbsp_s *s) 3039 { 3040 if (!s->codec || !s->codec->rts) 3041 omap_mcbsp_source_tick(s); 3042 else if (s->codec->in.len) { 3043 s->rx_req = s->codec->in.len; 3044 omap_mcbsp_rx_newdata(s); 3045 } 3046 } 3047 3048 static void omap_mcbsp_rx_stop(struct omap_mcbsp_s *s) 3049 { 3050 timer_del(s->source_timer); 3051 } 3052 3053 static void omap_mcbsp_rx_done(struct omap_mcbsp_s *s) 3054 { 3055 s->spcr[0] &= ~(1 << 1); /* RRDY */ 3056 qemu_irq_lower(s->rxdrq); 3057 omap_mcbsp_intr_update(s); 3058 } 3059 3060 static void omap_mcbsp_tx_newdata(struct omap_mcbsp_s *s) 3061 { 3062 s->spcr[1] |= 1 << 1; /* XRDY */ 3063 qemu_irq_raise(s->txdrq); 3064 omap_mcbsp_intr_update(s); 3065 } 3066 3067 static void omap_mcbsp_sink_tick(void *opaque) 3068 { 3069 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; 3070 static const int bps[8] = { 0, 1, 1, 2, 2, 2, -255, -255 }; 3071 3072 if (!s->tx_rate) 3073 return; 3074 if (s->tx_req) 3075 printf("%s: Tx FIFO underrun\n", __FUNCTION__); 3076 3077 s->tx_req = s->tx_rate << bps[(s->xcr[0] >> 5) & 7]; 3078 3079 omap_mcbsp_tx_newdata(s); 3080 timer_mod(s->sink_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + 3081 get_ticks_per_sec()); 3082 } 3083 3084 static void omap_mcbsp_tx_start(struct omap_mcbsp_s *s) 3085 { 3086 if (!s->codec || !s->codec->cts) 3087 omap_mcbsp_sink_tick(s); 3088 else if (s->codec->out.size) { 3089 s->tx_req = s->codec->out.size; 3090 omap_mcbsp_tx_newdata(s); 3091 } 3092 } 3093 3094 static void omap_mcbsp_tx_done(struct omap_mcbsp_s *s) 3095 { 3096 s->spcr[1] &= ~(1 << 1); /* XRDY */ 3097 qemu_irq_lower(s->txdrq); 3098 omap_mcbsp_intr_update(s); 3099 if (s->codec && s->codec->cts) 3100 s->codec->tx_swallow(s->codec->opaque); 3101 } 3102 3103 static void omap_mcbsp_tx_stop(struct omap_mcbsp_s *s) 3104 { 3105 s->tx_req = 0; 3106 omap_mcbsp_tx_done(s); 3107 timer_del(s->sink_timer); 3108 } 3109 3110 static void omap_mcbsp_req_update(struct omap_mcbsp_s *s) 3111 { 3112 int prev_rx_rate, prev_tx_rate; 3113 int rx_rate = 0, tx_rate = 0; 3114 int cpu_rate = 1500000; /* XXX */ 3115 3116 /* TODO: check CLKSTP bit */ 3117 if (s->spcr[1] & (1 << 6)) { /* GRST */ 3118 if (s->spcr[0] & (1 << 0)) { /* RRST */ 3119 if ((s->srgr[1] & (1 << 13)) && /* CLKSM */ 3120 (s->pcr & (1 << 8))) { /* CLKRM */ 3121 if (~s->pcr & (1 << 7)) /* SCLKME */ 3122 rx_rate = cpu_rate / 3123 ((s->srgr[0] & 0xff) + 1); /* CLKGDV */ 3124 } else 3125 if (s->codec) 3126 rx_rate = s->codec->rx_rate; 3127 } 3128 3129 if (s->spcr[1] & (1 << 0)) { /* XRST */ 3130 if ((s->srgr[1] & (1 << 13)) && /* CLKSM */ 3131 (s->pcr & (1 << 9))) { /* CLKXM */ 3132 if (~s->pcr & (1 << 7)) /* SCLKME */ 3133 tx_rate = cpu_rate / 3134 ((s->srgr[0] & 0xff) + 1); /* CLKGDV */ 3135 } else 3136 if (s->codec) 3137 tx_rate = s->codec->tx_rate; 3138 } 3139 } 3140 prev_tx_rate = s->tx_rate; 3141 prev_rx_rate = s->rx_rate; 3142 s->tx_rate = tx_rate; 3143 s->rx_rate = rx_rate; 3144 3145 if (s->codec) 3146 s->codec->set_rate(s->codec->opaque, rx_rate, tx_rate); 3147 3148 if (!prev_tx_rate && tx_rate) 3149 omap_mcbsp_tx_start(s); 3150 else if (s->tx_rate && !tx_rate) 3151 omap_mcbsp_tx_stop(s); 3152 3153 if (!prev_rx_rate && rx_rate) 3154 omap_mcbsp_rx_start(s); 3155 else if (prev_tx_rate && !tx_rate) 3156 omap_mcbsp_rx_stop(s); 3157 } 3158 3159 static uint64_t omap_mcbsp_read(void *opaque, hwaddr addr, 3160 unsigned size) 3161 { 3162 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; 3163 int offset = addr & OMAP_MPUI_REG_MASK; 3164 uint16_t ret; 3165 3166 if (size != 2) { 3167 return omap_badwidth_read16(opaque, addr); 3168 } 3169 3170 switch (offset) { 3171 case 0x00: /* DRR2 */ 3172 if (((s->rcr[0] >> 5) & 7) < 3) /* RWDLEN1 */ 3173 return 0x0000; 3174 /* Fall through. */ 3175 case 0x02: /* DRR1 */ 3176 if (s->rx_req < 2) { 3177 printf("%s: Rx FIFO underrun\n", __FUNCTION__); 3178 omap_mcbsp_rx_done(s); 3179 } else { 3180 s->tx_req -= 2; 3181 if (s->codec && s->codec->in.len >= 2) { 3182 ret = s->codec->in.fifo[s->codec->in.start ++] << 8; 3183 ret |= s->codec->in.fifo[s->codec->in.start ++]; 3184 s->codec->in.len -= 2; 3185 } else 3186 ret = 0x0000; 3187 if (!s->tx_req) 3188 omap_mcbsp_rx_done(s); 3189 return ret; 3190 } 3191 return 0x0000; 3192 3193 case 0x04: /* DXR2 */ 3194 case 0x06: /* DXR1 */ 3195 return 0x0000; 3196 3197 case 0x08: /* SPCR2 */ 3198 return s->spcr[1]; 3199 case 0x0a: /* SPCR1 */ 3200 return s->spcr[0]; 3201 case 0x0c: /* RCR2 */ 3202 return s->rcr[1]; 3203 case 0x0e: /* RCR1 */ 3204 return s->rcr[0]; 3205 case 0x10: /* XCR2 */ 3206 return s->xcr[1]; 3207 case 0x12: /* XCR1 */ 3208 return s->xcr[0]; 3209 case 0x14: /* SRGR2 */ 3210 return s->srgr[1]; 3211 case 0x16: /* SRGR1 */ 3212 return s->srgr[0]; 3213 case 0x18: /* MCR2 */ 3214 return s->mcr[1]; 3215 case 0x1a: /* MCR1 */ 3216 return s->mcr[0]; 3217 case 0x1c: /* RCERA */ 3218 return s->rcer[0]; 3219 case 0x1e: /* RCERB */ 3220 return s->rcer[1]; 3221 case 0x20: /* XCERA */ 3222 return s->xcer[0]; 3223 case 0x22: /* XCERB */ 3224 return s->xcer[1]; 3225 case 0x24: /* PCR0 */ 3226 return s->pcr; 3227 case 0x26: /* RCERC */ 3228 return s->rcer[2]; 3229 case 0x28: /* RCERD */ 3230 return s->rcer[3]; 3231 case 0x2a: /* XCERC */ 3232 return s->xcer[2]; 3233 case 0x2c: /* XCERD */ 3234 return s->xcer[3]; 3235 case 0x2e: /* RCERE */ 3236 return s->rcer[4]; 3237 case 0x30: /* RCERF */ 3238 return s->rcer[5]; 3239 case 0x32: /* XCERE */ 3240 return s->xcer[4]; 3241 case 0x34: /* XCERF */ 3242 return s->xcer[5]; 3243 case 0x36: /* RCERG */ 3244 return s->rcer[6]; 3245 case 0x38: /* RCERH */ 3246 return s->rcer[7]; 3247 case 0x3a: /* XCERG */ 3248 return s->xcer[6]; 3249 case 0x3c: /* XCERH */ 3250 return s->xcer[7]; 3251 } 3252 3253 OMAP_BAD_REG(addr); 3254 return 0; 3255 } 3256 3257 static void omap_mcbsp_writeh(void *opaque, hwaddr addr, 3258 uint32_t value) 3259 { 3260 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; 3261 int offset = addr & OMAP_MPUI_REG_MASK; 3262 3263 switch (offset) { 3264 case 0x00: /* DRR2 */ 3265 case 0x02: /* DRR1 */ 3266 OMAP_RO_REG(addr); 3267 return; 3268 3269 case 0x04: /* DXR2 */ 3270 if (((s->xcr[0] >> 5) & 7) < 3) /* XWDLEN1 */ 3271 return; 3272 /* Fall through. */ 3273 case 0x06: /* DXR1 */ 3274 if (s->tx_req > 1) { 3275 s->tx_req -= 2; 3276 if (s->codec && s->codec->cts) { 3277 s->codec->out.fifo[s->codec->out.len ++] = (value >> 8) & 0xff; 3278 s->codec->out.fifo[s->codec->out.len ++] = (value >> 0) & 0xff; 3279 } 3280 if (s->tx_req < 2) 3281 omap_mcbsp_tx_done(s); 3282 } else 3283 printf("%s: Tx FIFO overrun\n", __FUNCTION__); 3284 return; 3285 3286 case 0x08: /* SPCR2 */ 3287 s->spcr[1] &= 0x0002; 3288 s->spcr[1] |= 0x03f9 & value; 3289 s->spcr[1] |= 0x0004 & (value << 2); /* XEMPTY := XRST */ 3290 if (~value & 1) /* XRST */ 3291 s->spcr[1] &= ~6; 3292 omap_mcbsp_req_update(s); 3293 return; 3294 case 0x0a: /* SPCR1 */ 3295 s->spcr[0] &= 0x0006; 3296 s->spcr[0] |= 0xf8f9 & value; 3297 if (value & (1 << 15)) /* DLB */ 3298 printf("%s: Digital Loopback mode enable attempt\n", __FUNCTION__); 3299 if (~value & 1) { /* RRST */ 3300 s->spcr[0] &= ~6; 3301 s->rx_req = 0; 3302 omap_mcbsp_rx_done(s); 3303 } 3304 omap_mcbsp_req_update(s); 3305 return; 3306 3307 case 0x0c: /* RCR2 */ 3308 s->rcr[1] = value & 0xffff; 3309 return; 3310 case 0x0e: /* RCR1 */ 3311 s->rcr[0] = value & 0x7fe0; 3312 return; 3313 case 0x10: /* XCR2 */ 3314 s->xcr[1] = value & 0xffff; 3315 return; 3316 case 0x12: /* XCR1 */ 3317 s->xcr[0] = value & 0x7fe0; 3318 return; 3319 case 0x14: /* SRGR2 */ 3320 s->srgr[1] = value & 0xffff; 3321 omap_mcbsp_req_update(s); 3322 return; 3323 case 0x16: /* SRGR1 */ 3324 s->srgr[0] = value & 0xffff; 3325 omap_mcbsp_req_update(s); 3326 return; 3327 case 0x18: /* MCR2 */ 3328 s->mcr[1] = value & 0x03e3; 3329 if (value & 3) /* XMCM */ 3330 printf("%s: Tx channel selection mode enable attempt\n", 3331 __FUNCTION__); 3332 return; 3333 case 0x1a: /* MCR1 */ 3334 s->mcr[0] = value & 0x03e1; 3335 if (value & 1) /* RMCM */ 3336 printf("%s: Rx channel selection mode enable attempt\n", 3337 __FUNCTION__); 3338 return; 3339 case 0x1c: /* RCERA */ 3340 s->rcer[0] = value & 0xffff; 3341 return; 3342 case 0x1e: /* RCERB */ 3343 s->rcer[1] = value & 0xffff; 3344 return; 3345 case 0x20: /* XCERA */ 3346 s->xcer[0] = value & 0xffff; 3347 return; 3348 case 0x22: /* XCERB */ 3349 s->xcer[1] = value & 0xffff; 3350 return; 3351 case 0x24: /* PCR0 */ 3352 s->pcr = value & 0x7faf; 3353 return; 3354 case 0x26: /* RCERC */ 3355 s->rcer[2] = value & 0xffff; 3356 return; 3357 case 0x28: /* RCERD */ 3358 s->rcer[3] = value & 0xffff; 3359 return; 3360 case 0x2a: /* XCERC */ 3361 s->xcer[2] = value & 0xffff; 3362 return; 3363 case 0x2c: /* XCERD */ 3364 s->xcer[3] = value & 0xffff; 3365 return; 3366 case 0x2e: /* RCERE */ 3367 s->rcer[4] = value & 0xffff; 3368 return; 3369 case 0x30: /* RCERF */ 3370 s->rcer[5] = value & 0xffff; 3371 return; 3372 case 0x32: /* XCERE */ 3373 s->xcer[4] = value & 0xffff; 3374 return; 3375 case 0x34: /* XCERF */ 3376 s->xcer[5] = value & 0xffff; 3377 return; 3378 case 0x36: /* RCERG */ 3379 s->rcer[6] = value & 0xffff; 3380 return; 3381 case 0x38: /* RCERH */ 3382 s->rcer[7] = value & 0xffff; 3383 return; 3384 case 0x3a: /* XCERG */ 3385 s->xcer[6] = value & 0xffff; 3386 return; 3387 case 0x3c: /* XCERH */ 3388 s->xcer[7] = value & 0xffff; 3389 return; 3390 } 3391 3392 OMAP_BAD_REG(addr); 3393 } 3394 3395 static void omap_mcbsp_writew(void *opaque, hwaddr addr, 3396 uint32_t value) 3397 { 3398 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; 3399 int offset = addr & OMAP_MPUI_REG_MASK; 3400 3401 if (offset == 0x04) { /* DXR */ 3402 if (((s->xcr[0] >> 5) & 7) < 3) /* XWDLEN1 */ 3403 return; 3404 if (s->tx_req > 3) { 3405 s->tx_req -= 4; 3406 if (s->codec && s->codec->cts) { 3407 s->codec->out.fifo[s->codec->out.len ++] = 3408 (value >> 24) & 0xff; 3409 s->codec->out.fifo[s->codec->out.len ++] = 3410 (value >> 16) & 0xff; 3411 s->codec->out.fifo[s->codec->out.len ++] = 3412 (value >> 8) & 0xff; 3413 s->codec->out.fifo[s->codec->out.len ++] = 3414 (value >> 0) & 0xff; 3415 } 3416 if (s->tx_req < 4) 3417 omap_mcbsp_tx_done(s); 3418 } else 3419 printf("%s: Tx FIFO overrun\n", __FUNCTION__); 3420 return; 3421 } 3422 3423 omap_badwidth_write16(opaque, addr, value); 3424 } 3425 3426 static void omap_mcbsp_write(void *opaque, hwaddr addr, 3427 uint64_t value, unsigned size) 3428 { 3429 switch (size) { 3430 case 2: 3431 omap_mcbsp_writeh(opaque, addr, value); 3432 break; 3433 case 4: 3434 omap_mcbsp_writew(opaque, addr, value); 3435 break; 3436 default: 3437 omap_badwidth_write16(opaque, addr, value); 3438 } 3439 } 3440 3441 static const MemoryRegionOps omap_mcbsp_ops = { 3442 .read = omap_mcbsp_read, 3443 .write = omap_mcbsp_write, 3444 .endianness = DEVICE_NATIVE_ENDIAN, 3445 }; 3446 3447 static void omap_mcbsp_reset(struct omap_mcbsp_s *s) 3448 { 3449 memset(&s->spcr, 0, sizeof(s->spcr)); 3450 memset(&s->rcr, 0, sizeof(s->rcr)); 3451 memset(&s->xcr, 0, sizeof(s->xcr)); 3452 s->srgr[0] = 0x0001; 3453 s->srgr[1] = 0x2000; 3454 memset(&s->mcr, 0, sizeof(s->mcr)); 3455 memset(&s->pcr, 0, sizeof(s->pcr)); 3456 memset(&s->rcer, 0, sizeof(s->rcer)); 3457 memset(&s->xcer, 0, sizeof(s->xcer)); 3458 s->tx_req = 0; 3459 s->rx_req = 0; 3460 s->tx_rate = 0; 3461 s->rx_rate = 0; 3462 timer_del(s->source_timer); 3463 timer_del(s->sink_timer); 3464 } 3465 3466 static struct omap_mcbsp_s *omap_mcbsp_init(MemoryRegion *system_memory, 3467 hwaddr base, 3468 qemu_irq txirq, qemu_irq rxirq, 3469 qemu_irq *dma, omap_clk clk) 3470 { 3471 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) 3472 g_malloc0(sizeof(struct omap_mcbsp_s)); 3473 3474 s->txirq = txirq; 3475 s->rxirq = rxirq; 3476 s->txdrq = dma[0]; 3477 s->rxdrq = dma[1]; 3478 s->sink_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, omap_mcbsp_sink_tick, s); 3479 s->source_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, omap_mcbsp_source_tick, s); 3480 omap_mcbsp_reset(s); 3481 3482 memory_region_init_io(&s->iomem, NULL, &omap_mcbsp_ops, s, "omap-mcbsp", 0x800); 3483 memory_region_add_subregion(system_memory, base, &s->iomem); 3484 3485 return s; 3486 } 3487 3488 static void omap_mcbsp_i2s_swallow(void *opaque, int line, int level) 3489 { 3490 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; 3491 3492 if (s->rx_rate) { 3493 s->rx_req = s->codec->in.len; 3494 omap_mcbsp_rx_newdata(s); 3495 } 3496 } 3497 3498 static void omap_mcbsp_i2s_start(void *opaque, int line, int level) 3499 { 3500 struct omap_mcbsp_s *s = (struct omap_mcbsp_s *) opaque; 3501 3502 if (s->tx_rate) { 3503 s->tx_req = s->codec->out.size; 3504 omap_mcbsp_tx_newdata(s); 3505 } 3506 } 3507 3508 void omap_mcbsp_i2s_attach(struct omap_mcbsp_s *s, I2SCodec *slave) 3509 { 3510 s->codec = slave; 3511 slave->rx_swallow = qemu_allocate_irq(omap_mcbsp_i2s_swallow, s, 0); 3512 slave->tx_start = qemu_allocate_irq(omap_mcbsp_i2s_start, s, 0); 3513 } 3514 3515 /* LED Pulse Generators */ 3516 struct omap_lpg_s { 3517 MemoryRegion iomem; 3518 QEMUTimer *tm; 3519 3520 uint8_t control; 3521 uint8_t power; 3522 int64_t on; 3523 int64_t period; 3524 int clk; 3525 int cycle; 3526 }; 3527 3528 static void omap_lpg_tick(void *opaque) 3529 { 3530 struct omap_lpg_s *s = opaque; 3531 3532 if (s->cycle) 3533 timer_mod(s->tm, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + s->period - s->on); 3534 else 3535 timer_mod(s->tm, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + s->on); 3536 3537 s->cycle = !s->cycle; 3538 printf("%s: LED is %s\n", __FUNCTION__, s->cycle ? "on" : "off"); 3539 } 3540 3541 static void omap_lpg_update(struct omap_lpg_s *s) 3542 { 3543 int64_t on, period = 1, ticks = 1000; 3544 static const int per[8] = { 1, 2, 4, 8, 12, 16, 20, 24 }; 3545 3546 if (~s->control & (1 << 6)) /* LPGRES */ 3547 on = 0; 3548 else if (s->control & (1 << 7)) /* PERM_ON */ 3549 on = period; 3550 else { 3551 period = muldiv64(ticks, per[s->control & 7], /* PERCTRL */ 3552 256 / 32); 3553 on = (s->clk && s->power) ? muldiv64(ticks, 3554 per[(s->control >> 3) & 7], 256) : 0; /* ONCTRL */ 3555 } 3556 3557 timer_del(s->tm); 3558 if (on == period && s->on < s->period) 3559 printf("%s: LED is on\n", __FUNCTION__); 3560 else if (on == 0 && s->on) 3561 printf("%s: LED is off\n", __FUNCTION__); 3562 else if (on && (on != s->on || period != s->period)) { 3563 s->cycle = 0; 3564 s->on = on; 3565 s->period = period; 3566 omap_lpg_tick(s); 3567 return; 3568 } 3569 3570 s->on = on; 3571 s->period = period; 3572 } 3573 3574 static void omap_lpg_reset(struct omap_lpg_s *s) 3575 { 3576 s->control = 0x00; 3577 s->power = 0x00; 3578 s->clk = 1; 3579 omap_lpg_update(s); 3580 } 3581 3582 static uint64_t omap_lpg_read(void *opaque, hwaddr addr, 3583 unsigned size) 3584 { 3585 struct omap_lpg_s *s = (struct omap_lpg_s *) opaque; 3586 int offset = addr & OMAP_MPUI_REG_MASK; 3587 3588 if (size != 1) { 3589 return omap_badwidth_read8(opaque, addr); 3590 } 3591 3592 switch (offset) { 3593 case 0x00: /* LCR */ 3594 return s->control; 3595 3596 case 0x04: /* PMR */ 3597 return s->power; 3598 } 3599 3600 OMAP_BAD_REG(addr); 3601 return 0; 3602 } 3603 3604 static void omap_lpg_write(void *opaque, hwaddr addr, 3605 uint64_t value, unsigned size) 3606 { 3607 struct omap_lpg_s *s = (struct omap_lpg_s *) opaque; 3608 int offset = addr & OMAP_MPUI_REG_MASK; 3609 3610 if (size != 1) { 3611 omap_badwidth_write8(opaque, addr, value); 3612 return; 3613 } 3614 3615 switch (offset) { 3616 case 0x00: /* LCR */ 3617 if (~value & (1 << 6)) /* LPGRES */ 3618 omap_lpg_reset(s); 3619 s->control = value & 0xff; 3620 omap_lpg_update(s); 3621 return; 3622 3623 case 0x04: /* PMR */ 3624 s->power = value & 0x01; 3625 omap_lpg_update(s); 3626 return; 3627 3628 default: 3629 OMAP_BAD_REG(addr); 3630 return; 3631 } 3632 } 3633 3634 static const MemoryRegionOps omap_lpg_ops = { 3635 .read = omap_lpg_read, 3636 .write = omap_lpg_write, 3637 .endianness = DEVICE_NATIVE_ENDIAN, 3638 }; 3639 3640 static void omap_lpg_clk_update(void *opaque, int line, int on) 3641 { 3642 struct omap_lpg_s *s = (struct omap_lpg_s *) opaque; 3643 3644 s->clk = on; 3645 omap_lpg_update(s); 3646 } 3647 3648 static struct omap_lpg_s *omap_lpg_init(MemoryRegion *system_memory, 3649 hwaddr base, omap_clk clk) 3650 { 3651 struct omap_lpg_s *s = (struct omap_lpg_s *) 3652 g_malloc0(sizeof(struct omap_lpg_s)); 3653 3654 s->tm = timer_new_ms(QEMU_CLOCK_VIRTUAL, omap_lpg_tick, s); 3655 3656 omap_lpg_reset(s); 3657 3658 memory_region_init_io(&s->iomem, NULL, &omap_lpg_ops, s, "omap-lpg", 0x800); 3659 memory_region_add_subregion(system_memory, base, &s->iomem); 3660 3661 omap_clk_adduser(clk, qemu_allocate_irq(omap_lpg_clk_update, s, 0)); 3662 3663 return s; 3664 } 3665 3666 /* MPUI Peripheral Bridge configuration */ 3667 static uint64_t omap_mpui_io_read(void *opaque, hwaddr addr, 3668 unsigned size) 3669 { 3670 if (size != 2) { 3671 return omap_badwidth_read16(opaque, addr); 3672 } 3673 3674 if (addr == OMAP_MPUI_BASE) /* CMR */ 3675 return 0xfe4d; 3676 3677 OMAP_BAD_REG(addr); 3678 return 0; 3679 } 3680 3681 static void omap_mpui_io_write(void *opaque, hwaddr addr, 3682 uint64_t value, unsigned size) 3683 { 3684 /* FIXME: infinite loop */ 3685 omap_badwidth_write16(opaque, addr, value); 3686 } 3687 3688 static const MemoryRegionOps omap_mpui_io_ops = { 3689 .read = omap_mpui_io_read, 3690 .write = omap_mpui_io_write, 3691 .endianness = DEVICE_NATIVE_ENDIAN, 3692 }; 3693 3694 static void omap_setup_mpui_io(MemoryRegion *system_memory, 3695 struct omap_mpu_state_s *mpu) 3696 { 3697 memory_region_init_io(&mpu->mpui_io_iomem, NULL, &omap_mpui_io_ops, mpu, 3698 "omap-mpui-io", 0x7fff); 3699 memory_region_add_subregion(system_memory, OMAP_MPUI_BASE, 3700 &mpu->mpui_io_iomem); 3701 } 3702 3703 /* General chip reset */ 3704 static void omap1_mpu_reset(void *opaque) 3705 { 3706 struct omap_mpu_state_s *mpu = (struct omap_mpu_state_s *) opaque; 3707 3708 omap_dma_reset(mpu->dma); 3709 omap_mpu_timer_reset(mpu->timer[0]); 3710 omap_mpu_timer_reset(mpu->timer[1]); 3711 omap_mpu_timer_reset(mpu->timer[2]); 3712 omap_wd_timer_reset(mpu->wdt); 3713 omap_os_timer_reset(mpu->os_timer); 3714 omap_lcdc_reset(mpu->lcd); 3715 omap_ulpd_pm_reset(mpu); 3716 omap_pin_cfg_reset(mpu); 3717 omap_mpui_reset(mpu); 3718 omap_tipb_bridge_reset(mpu->private_tipb); 3719 omap_tipb_bridge_reset(mpu->public_tipb); 3720 omap_dpll_reset(mpu->dpll[0]); 3721 omap_dpll_reset(mpu->dpll[1]); 3722 omap_dpll_reset(mpu->dpll[2]); 3723 omap_uart_reset(mpu->uart[0]); 3724 omap_uart_reset(mpu->uart[1]); 3725 omap_uart_reset(mpu->uart[2]); 3726 omap_mmc_reset(mpu->mmc); 3727 omap_mpuio_reset(mpu->mpuio); 3728 omap_uwire_reset(mpu->microwire); 3729 omap_pwl_reset(mpu->pwl); 3730 omap_pwt_reset(mpu->pwt); 3731 omap_rtc_reset(mpu->rtc); 3732 omap_mcbsp_reset(mpu->mcbsp1); 3733 omap_mcbsp_reset(mpu->mcbsp2); 3734 omap_mcbsp_reset(mpu->mcbsp3); 3735 omap_lpg_reset(mpu->led[0]); 3736 omap_lpg_reset(mpu->led[1]); 3737 omap_clkm_reset(mpu); 3738 cpu_reset(CPU(mpu->cpu)); 3739 } 3740 3741 static const struct omap_map_s { 3742 hwaddr phys_dsp; 3743 hwaddr phys_mpu; 3744 uint32_t size; 3745 const char *name; 3746 } omap15xx_dsp_mm[] = { 3747 /* Strobe 0 */ 3748 { 0xe1010000, 0xfffb0000, 0x800, "UART1 BT" }, /* CS0 */ 3749 { 0xe1010800, 0xfffb0800, 0x800, "UART2 COM" }, /* CS1 */ 3750 { 0xe1011800, 0xfffb1800, 0x800, "McBSP1 audio" }, /* CS3 */ 3751 { 0xe1012000, 0xfffb2000, 0x800, "MCSI2 communication" }, /* CS4 */ 3752 { 0xe1012800, 0xfffb2800, 0x800, "MCSI1 BT u-Law" }, /* CS5 */ 3753 { 0xe1013000, 0xfffb3000, 0x800, "uWire" }, /* CS6 */ 3754 { 0xe1013800, 0xfffb3800, 0x800, "I^2C" }, /* CS7 */ 3755 { 0xe1014000, 0xfffb4000, 0x800, "USB W2FC" }, /* CS8 */ 3756 { 0xe1014800, 0xfffb4800, 0x800, "RTC" }, /* CS9 */ 3757 { 0xe1015000, 0xfffb5000, 0x800, "MPUIO" }, /* CS10 */ 3758 { 0xe1015800, 0xfffb5800, 0x800, "PWL" }, /* CS11 */ 3759 { 0xe1016000, 0xfffb6000, 0x800, "PWT" }, /* CS12 */ 3760 { 0xe1017000, 0xfffb7000, 0x800, "McBSP3" }, /* CS14 */ 3761 { 0xe1017800, 0xfffb7800, 0x800, "MMC" }, /* CS15 */ 3762 { 0xe1019000, 0xfffb9000, 0x800, "32-kHz timer" }, /* CS18 */ 3763 { 0xe1019800, 0xfffb9800, 0x800, "UART3" }, /* CS19 */ 3764 { 0xe101c800, 0xfffbc800, 0x800, "TIPB switches" }, /* CS25 */ 3765 /* Strobe 1 */ 3766 { 0xe101e000, 0xfffce000, 0x800, "GPIOs" }, /* CS28 */ 3767 3768 { 0 } 3769 }; 3770 3771 static void omap_setup_dsp_mapping(MemoryRegion *system_memory, 3772 const struct omap_map_s *map) 3773 { 3774 MemoryRegion *io; 3775 3776 for (; map->phys_dsp; map ++) { 3777 io = g_new(MemoryRegion, 1); 3778 memory_region_init_alias(io, NULL, map->name, 3779 system_memory, map->phys_mpu, map->size); 3780 memory_region_add_subregion(system_memory, map->phys_dsp, io); 3781 } 3782 } 3783 3784 void omap_mpu_wakeup(void *opaque, int irq, int req) 3785 { 3786 struct omap_mpu_state_s *mpu = (struct omap_mpu_state_s *) opaque; 3787 CPUState *cpu = CPU(mpu->cpu); 3788 3789 if (cpu->halted) { 3790 cpu_interrupt(cpu, CPU_INTERRUPT_EXITTB); 3791 } 3792 } 3793 3794 static const struct dma_irq_map omap1_dma_irq_map[] = { 3795 { 0, OMAP_INT_DMA_CH0_6 }, 3796 { 0, OMAP_INT_DMA_CH1_7 }, 3797 { 0, OMAP_INT_DMA_CH2_8 }, 3798 { 0, OMAP_INT_DMA_CH3 }, 3799 { 0, OMAP_INT_DMA_CH4 }, 3800 { 0, OMAP_INT_DMA_CH5 }, 3801 { 1, OMAP_INT_1610_DMA_CH6 }, 3802 { 1, OMAP_INT_1610_DMA_CH7 }, 3803 { 1, OMAP_INT_1610_DMA_CH8 }, 3804 { 1, OMAP_INT_1610_DMA_CH9 }, 3805 { 1, OMAP_INT_1610_DMA_CH10 }, 3806 { 1, OMAP_INT_1610_DMA_CH11 }, 3807 { 1, OMAP_INT_1610_DMA_CH12 }, 3808 { 1, OMAP_INT_1610_DMA_CH13 }, 3809 { 1, OMAP_INT_1610_DMA_CH14 }, 3810 { 1, OMAP_INT_1610_DMA_CH15 } 3811 }; 3812 3813 /* DMA ports for OMAP1 */ 3814 static int omap_validate_emiff_addr(struct omap_mpu_state_s *s, 3815 hwaddr addr) 3816 { 3817 return range_covers_byte(OMAP_EMIFF_BASE, s->sdram_size, addr); 3818 } 3819 3820 static int omap_validate_emifs_addr(struct omap_mpu_state_s *s, 3821 hwaddr addr) 3822 { 3823 return range_covers_byte(OMAP_EMIFS_BASE, OMAP_EMIFF_BASE - OMAP_EMIFS_BASE, 3824 addr); 3825 } 3826 3827 static int omap_validate_imif_addr(struct omap_mpu_state_s *s, 3828 hwaddr addr) 3829 { 3830 return range_covers_byte(OMAP_IMIF_BASE, s->sram_size, addr); 3831 } 3832 3833 static int omap_validate_tipb_addr(struct omap_mpu_state_s *s, 3834 hwaddr addr) 3835 { 3836 return range_covers_byte(0xfffb0000, 0xffff0000 - 0xfffb0000, addr); 3837 } 3838 3839 static int omap_validate_local_addr(struct omap_mpu_state_s *s, 3840 hwaddr addr) 3841 { 3842 return range_covers_byte(OMAP_LOCALBUS_BASE, 0x1000000, addr); 3843 } 3844 3845 static int omap_validate_tipb_mpui_addr(struct omap_mpu_state_s *s, 3846 hwaddr addr) 3847 { 3848 return range_covers_byte(0xe1010000, 0xe1020004 - 0xe1010000, addr); 3849 } 3850 3851 struct omap_mpu_state_s *omap310_mpu_init(MemoryRegion *system_memory, 3852 unsigned long sdram_size, 3853 const char *core) 3854 { 3855 int i; 3856 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) 3857 g_malloc0(sizeof(struct omap_mpu_state_s)); 3858 qemu_irq dma_irqs[6]; 3859 DriveInfo *dinfo; 3860 SysBusDevice *busdev; 3861 3862 if (!core) 3863 core = "ti925t"; 3864 3865 /* Core */ 3866 s->mpu_model = omap310; 3867 s->cpu = cpu_arm_init(core); 3868 if (s->cpu == NULL) { 3869 fprintf(stderr, "Unable to find CPU definition\n"); 3870 exit(1); 3871 } 3872 s->sdram_size = sdram_size; 3873 s->sram_size = OMAP15XX_SRAM_SIZE; 3874 3875 s->wakeup = qemu_allocate_irq(omap_mpu_wakeup, s, 0); 3876 3877 /* Clocks */ 3878 omap_clk_init(s); 3879 3880 /* Memory-mapped stuff */ 3881 memory_region_allocate_system_memory(&s->emiff_ram, NULL, "omap1.dram", 3882 s->sdram_size); 3883 memory_region_add_subregion(system_memory, OMAP_EMIFF_BASE, &s->emiff_ram); 3884 memory_region_init_ram(&s->imif_ram, NULL, "omap1.sram", s->sram_size, 3885 &error_abort); 3886 vmstate_register_ram_global(&s->imif_ram); 3887 memory_region_add_subregion(system_memory, OMAP_IMIF_BASE, &s->imif_ram); 3888 3889 omap_clkm_init(system_memory, 0xfffece00, 0xe1008000, s); 3890 3891 s->ih[0] = qdev_create(NULL, "omap-intc"); 3892 qdev_prop_set_uint32(s->ih[0], "size", 0x100); 3893 qdev_prop_set_ptr(s->ih[0], "clk", omap_findclk(s, "arminth_ck")); 3894 qdev_init_nofail(s->ih[0]); 3895 busdev = SYS_BUS_DEVICE(s->ih[0]); 3896 sysbus_connect_irq(busdev, 0, 3897 qdev_get_gpio_in(DEVICE(s->cpu), ARM_CPU_IRQ)); 3898 sysbus_connect_irq(busdev, 1, 3899 qdev_get_gpio_in(DEVICE(s->cpu), ARM_CPU_FIQ)); 3900 sysbus_mmio_map(busdev, 0, 0xfffecb00); 3901 s->ih[1] = qdev_create(NULL, "omap-intc"); 3902 qdev_prop_set_uint32(s->ih[1], "size", 0x800); 3903 qdev_prop_set_ptr(s->ih[1], "clk", omap_findclk(s, "arminth_ck")); 3904 qdev_init_nofail(s->ih[1]); 3905 busdev = SYS_BUS_DEVICE(s->ih[1]); 3906 sysbus_connect_irq(busdev, 0, 3907 qdev_get_gpio_in(s->ih[0], OMAP_INT_15XX_IH2_IRQ)); 3908 /* The second interrupt controller's FIQ output is not wired up */ 3909 sysbus_mmio_map(busdev, 0, 0xfffe0000); 3910 3911 for (i = 0; i < 6; i++) { 3912 dma_irqs[i] = qdev_get_gpio_in(s->ih[omap1_dma_irq_map[i].ih], 3913 omap1_dma_irq_map[i].intr); 3914 } 3915 s->dma = omap_dma_init(0xfffed800, dma_irqs, system_memory, 3916 qdev_get_gpio_in(s->ih[0], OMAP_INT_DMA_LCD), 3917 s, omap_findclk(s, "dma_ck"), omap_dma_3_1); 3918 3919 s->port[emiff ].addr_valid = omap_validate_emiff_addr; 3920 s->port[emifs ].addr_valid = omap_validate_emifs_addr; 3921 s->port[imif ].addr_valid = omap_validate_imif_addr; 3922 s->port[tipb ].addr_valid = omap_validate_tipb_addr; 3923 s->port[local ].addr_valid = omap_validate_local_addr; 3924 s->port[tipb_mpui].addr_valid = omap_validate_tipb_mpui_addr; 3925 3926 /* Register SDRAM and SRAM DMA ports for fast transfers. */ 3927 soc_dma_port_add_mem(s->dma, memory_region_get_ram_ptr(&s->emiff_ram), 3928 OMAP_EMIFF_BASE, s->sdram_size); 3929 soc_dma_port_add_mem(s->dma, memory_region_get_ram_ptr(&s->imif_ram), 3930 OMAP_IMIF_BASE, s->sram_size); 3931 3932 s->timer[0] = omap_mpu_timer_init(system_memory, 0xfffec500, 3933 qdev_get_gpio_in(s->ih[0], OMAP_INT_TIMER1), 3934 omap_findclk(s, "mputim_ck")); 3935 s->timer[1] = omap_mpu_timer_init(system_memory, 0xfffec600, 3936 qdev_get_gpio_in(s->ih[0], OMAP_INT_TIMER2), 3937 omap_findclk(s, "mputim_ck")); 3938 s->timer[2] = omap_mpu_timer_init(system_memory, 0xfffec700, 3939 qdev_get_gpio_in(s->ih[0], OMAP_INT_TIMER3), 3940 omap_findclk(s, "mputim_ck")); 3941 3942 s->wdt = omap_wd_timer_init(system_memory, 0xfffec800, 3943 qdev_get_gpio_in(s->ih[0], OMAP_INT_WD_TIMER), 3944 omap_findclk(s, "armwdt_ck")); 3945 3946 s->os_timer = omap_os_timer_init(system_memory, 0xfffb9000, 3947 qdev_get_gpio_in(s->ih[1], OMAP_INT_OS_TIMER), 3948 omap_findclk(s, "clk32-kHz")); 3949 3950 s->lcd = omap_lcdc_init(system_memory, 0xfffec000, 3951 qdev_get_gpio_in(s->ih[0], OMAP_INT_LCD_CTRL), 3952 omap_dma_get_lcdch(s->dma), 3953 omap_findclk(s, "lcd_ck")); 3954 3955 omap_ulpd_pm_init(system_memory, 0xfffe0800, s); 3956 omap_pin_cfg_init(system_memory, 0xfffe1000, s); 3957 omap_id_init(system_memory, s); 3958 3959 omap_mpui_init(system_memory, 0xfffec900, s); 3960 3961 s->private_tipb = omap_tipb_bridge_init(system_memory, 0xfffeca00, 3962 qdev_get_gpio_in(s->ih[0], OMAP_INT_BRIDGE_PRIV), 3963 omap_findclk(s, "tipb_ck")); 3964 s->public_tipb = omap_tipb_bridge_init(system_memory, 0xfffed300, 3965 qdev_get_gpio_in(s->ih[0], OMAP_INT_BRIDGE_PUB), 3966 omap_findclk(s, "tipb_ck")); 3967 3968 omap_tcmi_init(system_memory, 0xfffecc00, s); 3969 3970 s->uart[0] = omap_uart_init(0xfffb0000, 3971 qdev_get_gpio_in(s->ih[1], OMAP_INT_UART1), 3972 omap_findclk(s, "uart1_ck"), 3973 omap_findclk(s, "uart1_ck"), 3974 s->drq[OMAP_DMA_UART1_TX], s->drq[OMAP_DMA_UART1_RX], 3975 "uart1", 3976 serial_hds[0]); 3977 s->uart[1] = omap_uart_init(0xfffb0800, 3978 qdev_get_gpio_in(s->ih[1], OMAP_INT_UART2), 3979 omap_findclk(s, "uart2_ck"), 3980 omap_findclk(s, "uart2_ck"), 3981 s->drq[OMAP_DMA_UART2_TX], s->drq[OMAP_DMA_UART2_RX], 3982 "uart2", 3983 serial_hds[0] ? serial_hds[1] : NULL); 3984 s->uart[2] = omap_uart_init(0xfffb9800, 3985 qdev_get_gpio_in(s->ih[0], OMAP_INT_UART3), 3986 omap_findclk(s, "uart3_ck"), 3987 omap_findclk(s, "uart3_ck"), 3988 s->drq[OMAP_DMA_UART3_TX], s->drq[OMAP_DMA_UART3_RX], 3989 "uart3", 3990 serial_hds[0] && serial_hds[1] ? serial_hds[2] : NULL); 3991 3992 s->dpll[0] = omap_dpll_init(system_memory, 0xfffecf00, 3993 omap_findclk(s, "dpll1")); 3994 s->dpll[1] = omap_dpll_init(system_memory, 0xfffed000, 3995 omap_findclk(s, "dpll2")); 3996 s->dpll[2] = omap_dpll_init(system_memory, 0xfffed100, 3997 omap_findclk(s, "dpll3")); 3998 3999 dinfo = drive_get(IF_SD, 0, 0); 4000 if (!dinfo) { 4001 fprintf(stderr, "qemu: missing SecureDigital device\n"); 4002 exit(1); 4003 } 4004 s->mmc = omap_mmc_init(0xfffb7800, system_memory, 4005 blk_by_legacy_dinfo(dinfo), 4006 qdev_get_gpio_in(s->ih[1], OMAP_INT_OQN), 4007 &s->drq[OMAP_DMA_MMC_TX], 4008 omap_findclk(s, "mmc_ck")); 4009 4010 s->mpuio = omap_mpuio_init(system_memory, 0xfffb5000, 4011 qdev_get_gpio_in(s->ih[1], OMAP_INT_KEYBOARD), 4012 qdev_get_gpio_in(s->ih[1], OMAP_INT_MPUIO), 4013 s->wakeup, omap_findclk(s, "clk32-kHz")); 4014 4015 s->gpio = qdev_create(NULL, "omap-gpio"); 4016 qdev_prop_set_int32(s->gpio, "mpu_model", s->mpu_model); 4017 qdev_prop_set_ptr(s->gpio, "clk", omap_findclk(s, "arm_gpio_ck")); 4018 qdev_init_nofail(s->gpio); 4019 sysbus_connect_irq(SYS_BUS_DEVICE(s->gpio), 0, 4020 qdev_get_gpio_in(s->ih[0], OMAP_INT_GPIO_BANK1)); 4021 sysbus_mmio_map(SYS_BUS_DEVICE(s->gpio), 0, 0xfffce000); 4022 4023 s->microwire = omap_uwire_init(system_memory, 0xfffb3000, 4024 qdev_get_gpio_in(s->ih[1], OMAP_INT_uWireTX), 4025 qdev_get_gpio_in(s->ih[1], OMAP_INT_uWireRX), 4026 s->drq[OMAP_DMA_UWIRE_TX], omap_findclk(s, "mpuper_ck")); 4027 4028 s->pwl = omap_pwl_init(system_memory, 0xfffb5800, 4029 omap_findclk(s, "armxor_ck")); 4030 s->pwt = omap_pwt_init(system_memory, 0xfffb6000, 4031 omap_findclk(s, "armxor_ck")); 4032 4033 s->i2c[0] = qdev_create(NULL, "omap_i2c"); 4034 qdev_prop_set_uint8(s->i2c[0], "revision", 0x11); 4035 qdev_prop_set_ptr(s->i2c[0], "fclk", omap_findclk(s, "mpuper_ck")); 4036 qdev_init_nofail(s->i2c[0]); 4037 busdev = SYS_BUS_DEVICE(s->i2c[0]); 4038 sysbus_connect_irq(busdev, 0, qdev_get_gpio_in(s->ih[1], OMAP_INT_I2C)); 4039 sysbus_connect_irq(busdev, 1, s->drq[OMAP_DMA_I2C_TX]); 4040 sysbus_connect_irq(busdev, 2, s->drq[OMAP_DMA_I2C_RX]); 4041 sysbus_mmio_map(busdev, 0, 0xfffb3800); 4042 4043 s->rtc = omap_rtc_init(system_memory, 0xfffb4800, 4044 qdev_get_gpio_in(s->ih[1], OMAP_INT_RTC_TIMER), 4045 qdev_get_gpio_in(s->ih[1], OMAP_INT_RTC_ALARM), 4046 omap_findclk(s, "clk32-kHz")); 4047 4048 s->mcbsp1 = omap_mcbsp_init(system_memory, 0xfffb1800, 4049 qdev_get_gpio_in(s->ih[1], OMAP_INT_McBSP1TX), 4050 qdev_get_gpio_in(s->ih[1], OMAP_INT_McBSP1RX), 4051 &s->drq[OMAP_DMA_MCBSP1_TX], omap_findclk(s, "dspxor_ck")); 4052 s->mcbsp2 = omap_mcbsp_init(system_memory, 0xfffb1000, 4053 qdev_get_gpio_in(s->ih[0], 4054 OMAP_INT_310_McBSP2_TX), 4055 qdev_get_gpio_in(s->ih[0], 4056 OMAP_INT_310_McBSP2_RX), 4057 &s->drq[OMAP_DMA_MCBSP2_TX], omap_findclk(s, "mpuper_ck")); 4058 s->mcbsp3 = omap_mcbsp_init(system_memory, 0xfffb7000, 4059 qdev_get_gpio_in(s->ih[1], OMAP_INT_McBSP3TX), 4060 qdev_get_gpio_in(s->ih[1], OMAP_INT_McBSP3RX), 4061 &s->drq[OMAP_DMA_MCBSP3_TX], omap_findclk(s, "dspxor_ck")); 4062 4063 s->led[0] = omap_lpg_init(system_memory, 4064 0xfffbd000, omap_findclk(s, "clk32-kHz")); 4065 s->led[1] = omap_lpg_init(system_memory, 4066 0xfffbd800, omap_findclk(s, "clk32-kHz")); 4067 4068 /* Register mappings not currenlty implemented: 4069 * MCSI2 Comm fffb2000 - fffb27ff (not mapped on OMAP310) 4070 * MCSI1 Bluetooth fffb2800 - fffb2fff (not mapped on OMAP310) 4071 * USB W2FC fffb4000 - fffb47ff 4072 * Camera Interface fffb6800 - fffb6fff 4073 * USB Host fffba000 - fffba7ff 4074 * FAC fffba800 - fffbafff 4075 * HDQ/1-Wire fffbc000 - fffbc7ff 4076 * TIPB switches fffbc800 - fffbcfff 4077 * Mailbox fffcf000 - fffcf7ff 4078 * Local bus IF fffec100 - fffec1ff 4079 * Local bus MMU fffec200 - fffec2ff 4080 * DSP MMU fffed200 - fffed2ff 4081 */ 4082 4083 omap_setup_dsp_mapping(system_memory, omap15xx_dsp_mm); 4084 omap_setup_mpui_io(system_memory, s); 4085 4086 qemu_register_reset(omap1_mpu_reset, s); 4087 4088 return s; 4089 } 4090