hw/misc/imx6ul_ccm.c

   1 /*
   2  * IMX6UL Clock Control Module
   3  *
   4  * Copyright (c) 2018 Jean-Christophe Dubois <jcd@tribudubois.net>
   5  *
   6  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   7  * See the COPYING file in the top-level directory.
   8  *
   9  * To get the timer frequencies right, we need to emulate at least part of
  10  * the CCM.
  11  */
  12
  13 #include "qemu/osdep.h"
  14 #include "hw/registerfields.h"
  15 #include "migration/vmstate.h"
  16 #include "hw/misc/imx6ul_ccm.h"
  17 #include "qemu/log.h"
  18 #include "qemu/module.h"
  19
  20 #include "trace.h"
  21
  22 static const uint32_t ccm_mask[CCM_MAX] = {
  23     [CCM_CCR] = 0xf01fef80,
  24     [CCM_CCDR] = 0xfffeffff,
  25     [CCM_CSR] = 0xffffffff,
  26     [CCM_CCSR] = 0xfffffef2,
  27     [CCM_CACRR] = 0xfffffff8,
  28     [CCM_CBCDR] = 0xc1f8e000,
  29     [CCM_CBCMR] = 0xfc03cfff,
  30     [CCM_CSCMR1] = 0x80700000,
  31     [CCM_CSCMR2] = 0xe01ff003,
  32     [CCM_CSCDR1] = 0xfe00c780,
  33     [CCM_CS1CDR] = 0xfe00fe00,
  34     [CCM_CS2CDR] = 0xf8007000,
  35     [CCM_CDCDR] = 0xf00fffff,
  36     [CCM_CHSCCDR] = 0xfffc01ff,
  37     [CCM_CSCDR2] = 0xfe0001ff,
  38     [CCM_CSCDR3] = 0xffffc1ff,
  39     [CCM_CDHIPR] = 0xffffffff,
  40     [CCM_CTOR] = 0x00000000,
  41     [CCM_CLPCR] = 0xf39ff01c,
  42     [CCM_CISR] = 0xfb85ffbe,
  43     [CCM_CIMR] = 0xfb85ffbf,
  44     [CCM_CCOSR] = 0xfe00fe00,
  45     [CCM_CGPR] = 0xfffc3fea,
  46     [CCM_CCGR0] = 0x00000000,
  47     [CCM_CCGR1] = 0x00000000,
  48     [CCM_CCGR2] = 0x00000000,
  49     [CCM_CCGR3] = 0x00000000,
  50     [CCM_CCGR4] = 0x00000000,
  51     [CCM_CCGR5] = 0x00000000,
  52     [CCM_CCGR6] = 0x00000000,
  53     [CCM_CMEOR] = 0xafffff1f,
  54 };
  55
  56 static const uint32_t analog_mask[CCM_ANALOG_MAX] = {
  57     [CCM_ANALOG_PLL_ARM] = 0xfff60f80,
  58     [CCM_ANALOG_PLL_USB1] = 0xfffe0fbc,
  59     [CCM_ANALOG_PLL_USB2] = 0xfffe0fbc,
  60     [CCM_ANALOG_PLL_SYS] = 0xfffa0ffe,
  61     [CCM_ANALOG_PLL_SYS_SS] = 0x00000000,
  62     [CCM_ANALOG_PLL_SYS_NUM] = 0xc0000000,
  63     [CCM_ANALOG_PLL_SYS_DENOM] = 0xc0000000,
  64     [CCM_ANALOG_PLL_AUDIO] = 0xffe20f80,
  65     [CCM_ANALOG_PLL_AUDIO_NUM] = 0xc0000000,
  66     [CCM_ANALOG_PLL_AUDIO_DENOM] = 0xc0000000,
  67     [CCM_ANALOG_PLL_VIDEO] = 0xffe20f80,
  68     [CCM_ANALOG_PLL_VIDEO_NUM] = 0xc0000000,
  69     [CCM_ANALOG_PLL_VIDEO_DENOM] = 0xc0000000,
  70     [CCM_ANALOG_PLL_ENET] = 0xffc20ff0,
  71     [CCM_ANALOG_PFD_480] = 0x40404040,
  72     [CCM_ANALOG_PFD_528] = 0x40404040,
  73     [PMU_MISC0] = 0x01fe8306,
  74     [PMU_MISC1] = 0x07fcede0,
  75     [PMU_MISC2] = 0x005f5f5f,
  76 };
  77
  78 static const char *imx6ul_ccm_reg_name(uint32_t reg)
  79 {
  80     static char unknown[20];
  81
  82     switch (reg) {
  83     case CCM_CCR:
  84         return "CCR";
  85     case CCM_CCDR:
  86         return "CCDR";
  87     case CCM_CSR:
  88         return "CSR";
  89     case CCM_CCSR:
  90         return "CCSR";
  91     case CCM_CACRR:
  92         return "CACRR";
  93     case CCM_CBCDR:
  94         return "CBCDR";
  95     case CCM_CBCMR:
  96         return "CBCMR";
  97     case CCM_CSCMR1:
  98         return "CSCMR1";
  99     case CCM_CSCMR2:
 100         return "CSCMR2";
 101     case CCM_CSCDR1:
 102         return "CSCDR1";
 103     case CCM_CS1CDR:
 104         return "CS1CDR";
 105     case CCM_CS2CDR:
 106         return "CS2CDR";
 107     case CCM_CDCDR:
 108         return "CDCDR";
 109     case CCM_CHSCCDR:
 110         return "CHSCCDR";
 111     case CCM_CSCDR2:
 112         return "CSCDR2";
 113     case CCM_CSCDR3:
 114         return "CSCDR3";
 115     case CCM_CDHIPR:
 116         return "CDHIPR";
 117     case CCM_CTOR:
 118         return "CTOR";
 119     case CCM_CLPCR:
 120         return "CLPCR";
 121     case CCM_CISR:
 122         return "CISR";
 123     case CCM_CIMR:
 124         return "CIMR";
 125     case CCM_CCOSR:
 126         return "CCOSR";
 127     case CCM_CGPR:
 128         return "CGPR";
 129     case CCM_CCGR0:
 130         return "CCGR0";
 131     case CCM_CCGR1:
 132         return "CCGR1";
 133     case CCM_CCGR2:
 134         return "CCGR2";
 135     case CCM_CCGR3:
 136         return "CCGR3";
 137     case CCM_CCGR4:
 138         return "CCGR4";
 139     case CCM_CCGR5:
 140         return "CCGR5";
 141     case CCM_CCGR6:
 142         return "CCGR6";
 143     case CCM_CMEOR:
 144         return "CMEOR";
 145     default:
 146         sprintf(unknown, "%u ?", reg);
 147         return unknown;
 148     }
 149 }
 150
 151 static const char *imx6ul_analog_reg_name(uint32_t reg)
 152 {
 153     static char unknown[20];
 154
 155     switch (reg) {
 156     case CCM_ANALOG_PLL_ARM:
 157         return "PLL_ARM";
 158     case CCM_ANALOG_PLL_ARM_SET:
 159         return "PLL_ARM_SET";
 160     case CCM_ANALOG_PLL_ARM_CLR:
 161         return "PLL_ARM_CLR";
 162     case CCM_ANALOG_PLL_ARM_TOG:
 163         return "PLL_ARM_TOG";
 164     case CCM_ANALOG_PLL_USB1:
 165         return "PLL_USB1";
 166     case CCM_ANALOG_PLL_USB1_SET:
 167         return "PLL_USB1_SET";
 168     case CCM_ANALOG_PLL_USB1_CLR:
 169         return "PLL_USB1_CLR";
 170     case CCM_ANALOG_PLL_USB1_TOG:
 171         return "PLL_USB1_TOG";
 172     case CCM_ANALOG_PLL_USB2:
 173         return "PLL_USB2";
 174     case CCM_ANALOG_PLL_USB2_SET:
 175         return "PLL_USB2_SET";
 176     case CCM_ANALOG_PLL_USB2_CLR:
 177         return "PLL_USB2_CLR";
 178     case CCM_ANALOG_PLL_USB2_TOG:
 179         return "PLL_USB2_TOG";
 180     case CCM_ANALOG_PLL_SYS:
 181         return "PLL_SYS";
 182     case CCM_ANALOG_PLL_SYS_SET:
 183         return "PLL_SYS_SET";
 184     case CCM_ANALOG_PLL_SYS_CLR:
 185         return "PLL_SYS_CLR";
 186     case CCM_ANALOG_PLL_SYS_TOG:
 187         return "PLL_SYS_TOG";
 188     case CCM_ANALOG_PLL_SYS_SS:
 189         return "PLL_SYS_SS";
 190     case CCM_ANALOG_PLL_SYS_NUM:
 191         return "PLL_SYS_NUM";
 192     case CCM_ANALOG_PLL_SYS_DENOM:
 193         return "PLL_SYS_DENOM";
 194     case CCM_ANALOG_PLL_AUDIO:
 195         return "PLL_AUDIO";
 196     case CCM_ANALOG_PLL_AUDIO_SET:
 197         return "PLL_AUDIO_SET";
 198     case CCM_ANALOG_PLL_AUDIO_CLR:
 199         return "PLL_AUDIO_CLR";
 200     case CCM_ANALOG_PLL_AUDIO_TOG:
 201         return "PLL_AUDIO_TOG";
 202     case CCM_ANALOG_PLL_AUDIO_NUM:
 203         return "PLL_AUDIO_NUM";
 204     case CCM_ANALOG_PLL_AUDIO_DENOM:
 205         return "PLL_AUDIO_DENOM";
 206     case CCM_ANALOG_PLL_VIDEO:
 207         return "PLL_VIDEO";
 208     case CCM_ANALOG_PLL_VIDEO_SET:
 209         return "PLL_VIDEO_SET";
 210     case CCM_ANALOG_PLL_VIDEO_CLR:
 211         return "PLL_VIDEO_CLR";
 212     case CCM_ANALOG_PLL_VIDEO_TOG:
 213         return "PLL_VIDEO_TOG";
 214     case CCM_ANALOG_PLL_VIDEO_NUM:
 215         return "PLL_VIDEO_NUM";
 216     case CCM_ANALOG_PLL_VIDEO_DENOM:
 217         return "PLL_VIDEO_DENOM";
 218     case CCM_ANALOG_PLL_ENET:
 219         return "PLL_ENET";
 220     case CCM_ANALOG_PLL_ENET_SET:
 221         return "PLL_ENET_SET";
 222     case CCM_ANALOG_PLL_ENET_CLR:
 223         return "PLL_ENET_CLR";
 224     case CCM_ANALOG_PLL_ENET_TOG:
 225         return "PLL_ENET_TOG";
 226     case CCM_ANALOG_PFD_480:
 227         return "PFD_480";
 228     case CCM_ANALOG_PFD_480_SET:
 229         return "PFD_480_SET";
 230     case CCM_ANALOG_PFD_480_CLR:
 231         return "PFD_480_CLR";
 232     case CCM_ANALOG_PFD_480_TOG:
 233         return "PFD_480_TOG";
 234     case CCM_ANALOG_PFD_528:
 235         return "PFD_528";
 236     case CCM_ANALOG_PFD_528_SET:
 237         return "PFD_528_SET";
 238     case CCM_ANALOG_PFD_528_CLR:
 239         return "PFD_528_CLR";
 240     case CCM_ANALOG_PFD_528_TOG:
 241         return "PFD_528_TOG";
 242     case CCM_ANALOG_MISC0:
 243         return "MISC0";
 244     case CCM_ANALOG_MISC0_SET:
 245         return "MISC0_SET";
 246     case CCM_ANALOG_MISC0_CLR:
 247         return "MISC0_CLR";
 248     case CCM_ANALOG_MISC0_TOG:
 249         return "MISC0_TOG";
 250     case CCM_ANALOG_MISC2:
 251         return "MISC2";
 252     case CCM_ANALOG_MISC2_SET:
 253         return "MISC2_SET";
 254     case CCM_ANALOG_MISC2_CLR:
 255         return "MISC2_CLR";
 256     case CCM_ANALOG_MISC2_TOG:
 257         return "MISC2_TOG";
 258     case PMU_REG_1P1:
 259         return "PMU_REG_1P1";
 260     case PMU_REG_3P0:
 261         return "PMU_REG_3P0";
 262     case PMU_REG_2P5:
 263         return "PMU_REG_2P5";
 264     case PMU_REG_CORE:
 265         return "PMU_REG_CORE";
 266     case PMU_MISC1:
 267         return "PMU_MISC1";
 268     case PMU_MISC1_SET:
 269         return "PMU_MISC1_SET";
 270     case PMU_MISC1_CLR:
 271         return "PMU_MISC1_CLR";
 272     case PMU_MISC1_TOG:
 273         return "PMU_MISC1_TOG";
 274     case USB_ANALOG_DIGPROG:
 275         return "USB_ANALOG_DIGPROG";
 276     default:
 277         sprintf(unknown, "%u ?", reg);
 278         return unknown;
 279     }
 280 }
 281
 282 #define CKIH_FREQ 24000000 /* 24MHz crystal input */
 283
 284 static const VMStateDescription vmstate_imx6ul_ccm = {
 285     .name = TYPE_IMX6UL_CCM,
 286     .version_id = 1,
 287     .minimum_version_id = 1,
 288     .fields = (VMStateField[]) {
 289         VMSTATE_UINT32_ARRAY(ccm, IMX6ULCCMState, CCM_MAX),
 290         VMSTATE_UINT32_ARRAY(analog, IMX6ULCCMState, CCM_ANALOG_MAX),
 291         VMSTATE_END_OF_LIST()
 292     },
 293 };
 294
 295 static uint64_t imx6ul_analog_get_osc_clk(IMX6ULCCMState *dev)
 296 {
 297     uint64_t freq = CKIH_FREQ;
 298
 299     trace_ccm_freq((uint32_t)freq);
 300
 301     return freq;
 302 }
 303
 304 static uint64_t imx6ul_analog_get_pll2_clk(IMX6ULCCMState *dev)
 305 {
 306     uint64_t freq = imx6ul_analog_get_osc_clk(dev);
 307
 308     if (FIELD_EX32(dev->analog[CCM_ANALOG_PLL_SYS],
 309                    ANALOG_PLL_SYS, DIV_SELECT)) {
 310         freq *= 22;
 311     } else {
 312         freq *= 20;
 313     }
 314
 315     trace_ccm_freq((uint32_t)freq);
 316
 317     return freq;
 318 }
 319
 320 static uint64_t imx6ul_analog_get_pll3_clk(IMX6ULCCMState *dev)
 321 {
 322     uint64_t freq = imx6ul_analog_get_osc_clk(dev) * 20;
 323
 324     trace_ccm_freq((uint32_t)freq);
 325
 326     return freq;
 327 }
 328
 329 static uint64_t imx6ul_analog_get_pll2_pfd0_clk(IMX6ULCCMState *dev)
 330 {
 331     uint64_t freq = 0;
 332
 333     freq = imx6ul_analog_get_pll2_clk(dev) * 18
 334            / FIELD_EX32(dev->analog[CCM_ANALOG_PFD_528],
 335                         ANALOG_PFD_528, PFD0_FRAC);
 336
 337     trace_ccm_freq((uint32_t)freq);
 338
 339     return freq;
 340 }
 341
 342 static uint64_t imx6ul_analog_get_pll2_pfd2_clk(IMX6ULCCMState *dev)
 343 {
 344     uint64_t freq = 0;
 345
 346     freq = imx6ul_analog_get_pll2_clk(dev) * 18
 347            / FIELD_EX32(dev->analog[CCM_ANALOG_PFD_528],
 348                         ANALOG_PFD_528, PFD2_FRAC);
 349
 350     trace_ccm_freq((uint32_t)freq);
 351
 352     return freq;
 353 }
 354
 355 static uint64_t imx6ul_analog_pll2_bypass_clk(IMX6ULCCMState *dev)
 356 {
 357     uint64_t freq = 0;
 358
 359     trace_ccm_freq((uint32_t)freq);
 360
 361     return freq;
 362 }
 363
 364 static uint64_t imx6ul_ccm_get_periph_clk2_sel_clk(IMX6ULCCMState *dev)
 365 {
 366     uint64_t freq = 0;
 367
 368     switch (FIELD_EX32(dev->ccm[CCM_CBCMR], CBCMR, PERIPH_CLK2_SEL)) {
 369     case 0:
 370         freq = imx6ul_analog_get_pll3_clk(dev);
 371         break;
 372     case 1:
 373         freq = imx6ul_analog_get_osc_clk(dev);
 374         break;
 375     case 2:
 376         freq = imx6ul_analog_pll2_bypass_clk(dev);
 377         break;
 378     case 3:
 379         /* We should never get there as 3 is a reserved value */
 380         qemu_log_mask(LOG_GUEST_ERROR,
 381                       "[%s]%s: unsupported PERIPH_CLK2_SEL value 3\n",
 382                       TYPE_IMX6UL_CCM, __func__);
 383         /* freq is set to 0 as we don't know what it should be */
 384         break;
 385     default:
 386         g_assert_not_reached();
 387     }
 388
 389     trace_ccm_freq((uint32_t)freq);
 390
 391     return freq;
 392 }
 393
 394 static uint64_t imx6ul_ccm_get_periph_clk_sel_clk(IMX6ULCCMState *dev)
 395 {
 396     uint64_t freq = 0;
 397
 398     switch (FIELD_EX32(dev->ccm[CCM_CBCMR], CBCMR, PRE_PERIPH_CLK_SEL)) {
 399     case 0:
 400         freq = imx6ul_analog_get_pll2_clk(dev);
 401         break;
 402     case 1:
 403         freq = imx6ul_analog_get_pll2_pfd2_clk(dev);
 404         break;
 405     case 2:
 406         freq = imx6ul_analog_get_pll2_pfd0_clk(dev);
 407         break;
 408     case 3:
 409         freq = imx6ul_analog_get_pll2_pfd2_clk(dev) / 2;
 410         break;
 411     default:
 412         g_assert_not_reached();
 413     }
 414
 415     trace_ccm_freq((uint32_t)freq);
 416
 417     return freq;
 418 }
 419
 420 static uint64_t imx6ul_ccm_get_periph_clk2_clk(IMX6ULCCMState *dev)
 421 {
 422     uint64_t freq = 0;
 423
 424     freq = imx6ul_ccm_get_periph_clk2_sel_clk(dev)
 425            / (1 + FIELD_EX32(dev->ccm[CCM_CBCDR], CBCDR, PERIPH_CLK2_PODF));
 426
 427     trace_ccm_freq((uint32_t)freq);
 428
 429     return freq;
 430 }
 431
 432 static uint64_t imx6ul_ccm_get_periph_sel_clk(IMX6ULCCMState *dev)
 433 {
 434     uint64_t freq = 0;
 435
 436     switch (FIELD_EX32(dev->ccm[CCM_CBCDR], CBCDR, PERIPH_CLK_SEL)) {
 437     case 0:
 438         freq = imx6ul_ccm_get_periph_clk_sel_clk(dev);
 439         break;
 440     case 1:
 441         freq = imx6ul_ccm_get_periph_clk2_clk(dev);
 442         break;
 443     default:
 444         g_assert_not_reached();
 445     }
 446
 447     trace_ccm_freq((uint32_t)freq);
 448
 449     return freq;
 450 }
 451
 452 static uint64_t imx6ul_ccm_get_ahb_clk(IMX6ULCCMState *dev)
 453 {
 454     uint64_t freq = 0;
 455
 456     freq = imx6ul_ccm_get_periph_sel_clk(dev)
 457            / (1 + FIELD_EX32(dev->ccm[CCM_CBCDR], CBCDR, AHB_PODF));
 458
 459     trace_ccm_freq((uint32_t)freq);
 460
 461     return freq;
 462 }
 463
 464 static uint64_t imx6ul_ccm_get_ipg_clk(IMX6ULCCMState *dev)
 465 {
 466     uint64_t freq = 0;
 467
 468     freq = imx6ul_ccm_get_ahb_clk(dev)
 469            / (1 + FIELD_EX32(dev->ccm[CCM_CBCDR], CBCDR, IPG_PODF));
 470
 471     trace_ccm_freq((uint32_t)freq);
 472
 473     return freq;
 474 }
 475
 476 static uint64_t imx6ul_ccm_get_per_sel_clk(IMX6ULCCMState *dev)
 477 {
 478     uint64_t freq = 0;
 479
 480     switch (FIELD_EX32(dev->ccm[CCM_CSCMR1], CSCMR1, PERCLK_CLK_SEL)) {
 481     case 0:
 482         freq = imx6ul_ccm_get_ipg_clk(dev);
 483         break;
 484     case 1:
 485         freq = imx6ul_analog_get_osc_clk(dev);
 486         break;
 487     default:
 488         g_assert_not_reached();
 489     }
 490
 491     trace_ccm_freq((uint32_t)freq);
 492
 493     return freq;
 494 }
 495
 496 static uint64_t imx6ul_ccm_get_per_clk(IMX6ULCCMState *dev)
 497 {
 498     uint64_t freq = 0;
 499
 500     freq = imx6ul_ccm_get_per_sel_clk(dev)
 501            / (1 + FIELD_EX32(dev->ccm[CCM_CSCMR1], CSCMR1, PERCLK_PODF));
 502
 503     trace_ccm_freq((uint32_t)freq);
 504
 505     return freq;
 506 }
 507
 508 static uint32_t imx6ul_ccm_get_clock_frequency(IMXCCMState *dev, IMXClk clock)
 509 {
 510     uint32_t freq = 0;
 511     IMX6ULCCMState *s = IMX6UL_CCM(dev);
 512
 513     switch (clock) {
 514     case CLK_NONE:
 515         break;
 516     case CLK_IPG:
 517         freq = imx6ul_ccm_get_ipg_clk(s);
 518         break;
 519     case CLK_IPG_HIGH:
 520         freq = imx6ul_ccm_get_per_clk(s);
 521         break;
 522     case CLK_32k:
 523         freq = CKIL_FREQ;
 524         break;
 525     case CLK_HIGH:
 526         freq = CKIH_FREQ;
 527         break;
 528     case CLK_HIGH_DIV:
 529         freq = CKIH_FREQ / 8;
 530         break;
 531     default:
 532         qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: unsupported clock %d\n",
 533                       TYPE_IMX6UL_CCM, __func__, clock);
 534         break;
 535     }
 536
 537     trace_ccm_clock_freq(clock, freq);
 538
 539     return freq;
 540 }
 541
 542 static void imx6ul_ccm_reset(DeviceState *dev)
 543 {
 544     IMX6ULCCMState *s = IMX6UL_CCM(dev);
 545
 546     trace_ccm_entry();
 547
 548     s->ccm[CCM_CCR] = 0x0401167F;
 549     s->ccm[CCM_CCDR] = 0x00000000;
 550     s->ccm[CCM_CSR] = 0x00000010;
 551     s->ccm[CCM_CCSR] = 0x00000100;
 552     s->ccm[CCM_CACRR] = 0x00000000;
 553     s->ccm[CCM_CBCDR] = 0x00018D00;
 554     s->ccm[CCM_CBCMR] = 0x24860324;
 555     s->ccm[CCM_CSCMR1] = 0x04900080;
 556     s->ccm[CCM_CSCMR2] = 0x03192F06;
 557     s->ccm[CCM_CSCDR1] = 0x00490B00;
 558     s->ccm[CCM_CS1CDR] = 0x0EC102C1;
 559     s->ccm[CCM_CS2CDR] = 0x000336C1;
 560     s->ccm[CCM_CDCDR] = 0x33F71F92;
 561     s->ccm[CCM_CHSCCDR] = 0x000248A4;
 562     s->ccm[CCM_CSCDR2] = 0x00029B48;
 563     s->ccm[CCM_CSCDR3] = 0x00014841;
 564     s->ccm[CCM_CDHIPR] = 0x00000000;
 565     s->ccm[CCM_CTOR] = 0x00000000;
 566     s->ccm[CCM_CLPCR] = 0x00000079;
 567     s->ccm[CCM_CISR] = 0x00000000;
 568     s->ccm[CCM_CIMR] = 0xFFFFFFFF;
 569     s->ccm[CCM_CCOSR] = 0x000A0001;
 570     s->ccm[CCM_CGPR] = 0x0000FE62;
 571     s->ccm[CCM_CCGR0] = 0xFFFFFFFF;
 572     s->ccm[CCM_CCGR1] = 0xFFFFFFFF;
 573     s->ccm[CCM_CCGR2] = 0xFC3FFFFF;
 574     s->ccm[CCM_CCGR3] = 0xFFFFFFFF;
 575     s->ccm[CCM_CCGR4] = 0xFFFFFFFF;
 576     s->ccm[CCM_CCGR5] = 0xFFFFFFFF;
 577     s->ccm[CCM_CCGR6] = 0xFFFFFFFF;
 578     s->ccm[CCM_CMEOR] = 0xFFFFFFFF;
 579
 580     s->analog[CCM_ANALOG_PLL_ARM] = 0x00013063;
 581     s->analog[CCM_ANALOG_PLL_USB1] = 0x00012000;
 582     s->analog[CCM_ANALOG_PLL_USB2] = 0x00012000;
 583     s->analog[CCM_ANALOG_PLL_SYS] = 0x00013001;
 584     s->analog[CCM_ANALOG_PLL_SYS_SS] = 0x00000000;
 585     s->analog[CCM_ANALOG_PLL_SYS_NUM] = 0x00000000;
 586     s->analog[CCM_ANALOG_PLL_SYS_DENOM] = 0x00000012;
 587     s->analog[CCM_ANALOG_PLL_AUDIO] = 0x00011006;
 588     s->analog[CCM_ANALOG_PLL_AUDIO_NUM] = 0x05F5E100;
 589     s->analog[CCM_ANALOG_PLL_AUDIO_DENOM] = 0x2964619C;
 590     s->analog[CCM_ANALOG_PLL_VIDEO] = 0x0001100C;
 591     s->analog[CCM_ANALOG_PLL_VIDEO_NUM] = 0x05F5E100;
 592     s->analog[CCM_ANALOG_PLL_VIDEO_DENOM] = 0x10A24447;
 593     s->analog[CCM_ANALOG_PLL_ENET] = 0x00011001;
 594     s->analog[CCM_ANALOG_PFD_480] = 0x1311100C;
 595     s->analog[CCM_ANALOG_PFD_528] = 0x1018101B;
 596
 597     s->analog[PMU_REG_1P1] = 0x00001073;
 598     s->analog[PMU_REG_3P0] = 0x00000F74;
 599     s->analog[PMU_REG_2P5] = 0x00001073;
 600     s->analog[PMU_REG_CORE] = 0x00482012;
 601     s->analog[PMU_MISC0] = 0x04000000;
 602     s->analog[PMU_MISC1] = 0x00000000;
 603     s->analog[PMU_MISC2] = 0x00272727;
 604     s->analog[PMU_LOWPWR_CTRL] = 0x00004009;
 605
 606     s->analog[USB_ANALOG_USB1_VBUS_DETECT] = 0x01000004;
 607     s->analog[USB_ANALOG_USB1_CHRG_DETECT] = 0x00000000;
 608     s->analog[USB_ANALOG_USB1_VBUS_DETECT_STAT] = 0x00000000;
 609     s->analog[USB_ANALOG_USB1_CHRG_DETECT_STAT] = 0x00000000;
 610     s->analog[USB_ANALOG_USB1_MISC] = 0x00000002;
 611     s->analog[USB_ANALOG_USB2_VBUS_DETECT] = 0x01000004;
 612     s->analog[USB_ANALOG_USB2_CHRG_DETECT] = 0x00000000;
 613     s->analog[USB_ANALOG_USB2_MISC] = 0x00000002;
 614     s->analog[USB_ANALOG_DIGPROG] = 0x00640000;
 615
 616     /* all PLLs need to be locked */
 617     s->analog[CCM_ANALOG_PLL_ARM]   |= CCM_ANALOG_PLL_LOCK;
 618     s->analog[CCM_ANALOG_PLL_USB1]  |= CCM_ANALOG_PLL_LOCK;
 619     s->analog[CCM_ANALOG_PLL_USB2]  |= CCM_ANALOG_PLL_LOCK;
 620     s->analog[CCM_ANALOG_PLL_SYS]   |= CCM_ANALOG_PLL_LOCK;
 621     s->analog[CCM_ANALOG_PLL_AUDIO] |= CCM_ANALOG_PLL_LOCK;
 622     s->analog[CCM_ANALOG_PLL_VIDEO] |= CCM_ANALOG_PLL_LOCK;
 623     s->analog[CCM_ANALOG_PLL_ENET]  |= CCM_ANALOG_PLL_LOCK;
 624
 625     s->analog[TEMPMON_TEMPSENSE0] = 0x00000001;
 626     s->analog[TEMPMON_TEMPSENSE1] = 0x00000001;
 627     s->analog[TEMPMON_TEMPSENSE2] = 0x00000000;
 628 }
 629
 630 static uint64_t imx6ul_ccm_read(void *opaque, hwaddr offset, unsigned size)
 631 {
 632     uint32_t value = 0;
 633     uint32_t index = offset >> 2;
 634     IMX6ULCCMState *s = (IMX6ULCCMState *)opaque;
 635
 636     assert(index < CCM_MAX);
 637
 638     value = s->ccm[index];
 639
 640     trace_ccm_read_reg(imx6ul_ccm_reg_name(index), (uint32_t)value);
 641
 642     return (uint64_t)value;
 643 }
 644
 645 static void imx6ul_ccm_write(void *opaque, hwaddr offset, uint64_t value,
 646                            unsigned size)
 647 {
 648     uint32_t index = offset >> 2;
 649     IMX6ULCCMState *s = (IMX6ULCCMState *)opaque;
 650
 651     assert(index < CCM_MAX);
 652
 653     trace_ccm_write_reg(imx6ul_ccm_reg_name(index), (uint32_t)value);
 654
 655     s->ccm[index] = (s->ccm[index] & ccm_mask[index]) |
 656                            ((uint32_t)value & ~ccm_mask[index]);
 657 }
 658
 659 static uint64_t imx6ul_analog_read(void *opaque, hwaddr offset, unsigned size)
 660 {
 661     uint32_t value;
 662     uint32_t index = offset >> 2;
 663     IMX6ULCCMState *s = (IMX6ULCCMState *)opaque;
 664
 665     assert(index < CCM_ANALOG_MAX);
 666
 667     switch (index) {
 668     case CCM_ANALOG_PLL_ARM_SET:
 669     case CCM_ANALOG_PLL_USB1_SET:
 670     case CCM_ANALOG_PLL_USB2_SET:
 671     case CCM_ANALOG_PLL_SYS_SET:
 672     case CCM_ANALOG_PLL_AUDIO_SET:
 673     case CCM_ANALOG_PLL_VIDEO_SET:
 674     case CCM_ANALOG_PLL_ENET_SET:
 675     case CCM_ANALOG_PFD_480_SET:
 676     case CCM_ANALOG_PFD_528_SET:
 677     case CCM_ANALOG_MISC0_SET:
 678     case PMU_MISC1_SET:
 679     case CCM_ANALOG_MISC2_SET:
 680     case USB_ANALOG_USB1_VBUS_DETECT_SET:
 681     case USB_ANALOG_USB1_CHRG_DETECT_SET:
 682     case USB_ANALOG_USB1_MISC_SET:
 683     case USB_ANALOG_USB2_VBUS_DETECT_SET:
 684     case USB_ANALOG_USB2_CHRG_DETECT_SET:
 685     case USB_ANALOG_USB2_MISC_SET:
 686     case TEMPMON_TEMPSENSE0_SET:
 687     case TEMPMON_TEMPSENSE1_SET:
 688     case TEMPMON_TEMPSENSE2_SET:
 689         /*
 690          * All REG_NAME_SET register access are in fact targeting
 691          * the REG_NAME register.
 692          */
 693         value = s->analog[index - 1];
 694         break;
 695     case CCM_ANALOG_PLL_ARM_CLR:
 696     case CCM_ANALOG_PLL_USB1_CLR:
 697     case CCM_ANALOG_PLL_USB2_CLR:
 698     case CCM_ANALOG_PLL_SYS_CLR:
 699     case CCM_ANALOG_PLL_AUDIO_CLR:
 700     case CCM_ANALOG_PLL_VIDEO_CLR:
 701     case CCM_ANALOG_PLL_ENET_CLR:
 702     case CCM_ANALOG_PFD_480_CLR:
 703     case CCM_ANALOG_PFD_528_CLR:
 704     case CCM_ANALOG_MISC0_CLR:
 705     case PMU_MISC1_CLR:
 706     case CCM_ANALOG_MISC2_CLR:
 707     case USB_ANALOG_USB1_VBUS_DETECT_CLR:
 708     case USB_ANALOG_USB1_CHRG_DETECT_CLR:
 709     case USB_ANALOG_USB1_MISC_CLR:
 710     case USB_ANALOG_USB2_VBUS_DETECT_CLR:
 711     case USB_ANALOG_USB2_CHRG_DETECT_CLR:
 712     case USB_ANALOG_USB2_MISC_CLR:
 713     case TEMPMON_TEMPSENSE0_CLR:
 714     case TEMPMON_TEMPSENSE1_CLR:
 715     case TEMPMON_TEMPSENSE2_CLR:
 716         /*
 717          * All REG_NAME_CLR register access are in fact targeting
 718          * the REG_NAME register.
 719          */
 720         value = s->analog[index - 2];
 721         break;
 722     case CCM_ANALOG_PLL_ARM_TOG:
 723     case CCM_ANALOG_PLL_USB1_TOG:
 724     case CCM_ANALOG_PLL_USB2_TOG:
 725     case CCM_ANALOG_PLL_SYS_TOG:
 726     case CCM_ANALOG_PLL_AUDIO_TOG:
 727     case CCM_ANALOG_PLL_VIDEO_TOG:
 728     case CCM_ANALOG_PLL_ENET_TOG:
 729     case CCM_ANALOG_PFD_480_TOG:
 730     case CCM_ANALOG_PFD_528_TOG:
 731     case CCM_ANALOG_MISC0_TOG:
 732     case PMU_MISC1_TOG:
 733     case CCM_ANALOG_MISC2_TOG:
 734     case USB_ANALOG_USB1_VBUS_DETECT_TOG:
 735     case USB_ANALOG_USB1_CHRG_DETECT_TOG:
 736     case USB_ANALOG_USB1_MISC_TOG:
 737     case USB_ANALOG_USB2_VBUS_DETECT_TOG:
 738     case USB_ANALOG_USB2_CHRG_DETECT_TOG:
 739     case USB_ANALOG_USB2_MISC_TOG:
 740     case TEMPMON_TEMPSENSE0_TOG:
 741     case TEMPMON_TEMPSENSE1_TOG:
 742     case TEMPMON_TEMPSENSE2_TOG:
 743         /*
 744          * All REG_NAME_TOG register access are in fact targeting
 745          * the REG_NAME register.
 746          */
 747         value = s->analog[index - 3];
 748         break;
 749     default:
 750         value = s->analog[index];
 751         break;
 752     }
 753
 754     trace_ccm_read_reg(imx6ul_analog_reg_name(index), (uint32_t)value);
 755
 756     return (uint64_t)value;
 757 }
 758
 759 static void imx6ul_analog_write(void *opaque, hwaddr offset, uint64_t value,
 760                               unsigned size)
 761 {
 762     uint32_t index = offset >> 2;
 763     IMX6ULCCMState *s = (IMX6ULCCMState *)opaque;
 764
 765     assert(index < CCM_ANALOG_MAX);
 766
 767     trace_ccm_write_reg(imx6ul_analog_reg_name(index), (uint32_t)value);
 768
 769     switch (index) {
 770     case CCM_ANALOG_PLL_ARM_SET:
 771     case CCM_ANALOG_PLL_USB1_SET:
 772     case CCM_ANALOG_PLL_USB2_SET:
 773     case CCM_ANALOG_PLL_SYS_SET:
 774     case CCM_ANALOG_PLL_AUDIO_SET:
 775     case CCM_ANALOG_PLL_VIDEO_SET:
 776     case CCM_ANALOG_PLL_ENET_SET:
 777     case CCM_ANALOG_PFD_480_SET:
 778     case CCM_ANALOG_PFD_528_SET:
 779     case CCM_ANALOG_MISC0_SET:
 780     case PMU_MISC1_SET:
 781     case CCM_ANALOG_MISC2_SET:
 782     case USB_ANALOG_USB1_VBUS_DETECT_SET:
 783     case USB_ANALOG_USB1_CHRG_DETECT_SET:
 784     case USB_ANALOG_USB1_MISC_SET:
 785     case USB_ANALOG_USB2_VBUS_DETECT_SET:
 786     case USB_ANALOG_USB2_CHRG_DETECT_SET:
 787     case USB_ANALOG_USB2_MISC_SET:
 788         /*
 789          * All REG_NAME_SET register access are in fact targeting
 790          * the REG_NAME register. So we change the value of the
 791          * REG_NAME register, setting bits passed in the value.
 792          */
 793         s->analog[index - 1] |= (value & ~analog_mask[index - 1]);
 794         break;
 795     case CCM_ANALOG_PLL_ARM_CLR:
 796     case CCM_ANALOG_PLL_USB1_CLR:
 797     case CCM_ANALOG_PLL_USB2_CLR:
 798     case CCM_ANALOG_PLL_SYS_CLR:
 799     case CCM_ANALOG_PLL_AUDIO_CLR:
 800     case CCM_ANALOG_PLL_VIDEO_CLR:
 801     case CCM_ANALOG_PLL_ENET_CLR:
 802     case CCM_ANALOG_PFD_480_CLR:
 803     case CCM_ANALOG_PFD_528_CLR:
 804     case CCM_ANALOG_MISC0_CLR:
 805     case PMU_MISC1_CLR:
 806     case CCM_ANALOG_MISC2_CLR:
 807     case USB_ANALOG_USB1_VBUS_DETECT_CLR:
 808     case USB_ANALOG_USB1_CHRG_DETECT_CLR:
 809     case USB_ANALOG_USB1_MISC_CLR:
 810     case USB_ANALOG_USB2_VBUS_DETECT_CLR:
 811     case USB_ANALOG_USB2_CHRG_DETECT_CLR:
 812     case USB_ANALOG_USB2_MISC_CLR:
 813         /*
 814          * All REG_NAME_CLR register access are in fact targeting
 815          * the REG_NAME register. So we change the value of the
 816          * REG_NAME register, unsetting bits passed in the value.
 817          */
 818         s->analog[index - 2] &= ~(value & ~analog_mask[index - 2]);
 819         break;
 820     case CCM_ANALOG_PLL_ARM_TOG:
 821     case CCM_ANALOG_PLL_USB1_TOG:
 822     case CCM_ANALOG_PLL_USB2_TOG:
 823     case CCM_ANALOG_PLL_SYS_TOG:
 824     case CCM_ANALOG_PLL_AUDIO_TOG:
 825     case CCM_ANALOG_PLL_VIDEO_TOG:
 826     case CCM_ANALOG_PLL_ENET_TOG:
 827     case CCM_ANALOG_PFD_480_TOG:
 828     case CCM_ANALOG_PFD_528_TOG:
 829     case CCM_ANALOG_MISC0_TOG:
 830     case PMU_MISC1_TOG:
 831     case CCM_ANALOG_MISC2_TOG:
 832     case USB_ANALOG_USB1_VBUS_DETECT_TOG:
 833     case USB_ANALOG_USB1_CHRG_DETECT_TOG:
 834     case USB_ANALOG_USB1_MISC_TOG:
 835     case USB_ANALOG_USB2_VBUS_DETECT_TOG:
 836     case USB_ANALOG_USB2_CHRG_DETECT_TOG:
 837     case USB_ANALOG_USB2_MISC_TOG:
 838         /*
 839          * All REG_NAME_TOG register access are in fact targeting
 840          * the REG_NAME register. So we change the value of the
 841          * REG_NAME register, toggling bits passed in the value.
 842          */
 843         s->analog[index - 3] ^= (value & ~analog_mask[index - 3]);
 844         break;
 845     default:
 846         s->analog[index] = (s->analog[index] & analog_mask[index]) |
 847                            (value & ~analog_mask[index]);
 848         break;
 849     }
 850 }
 851
 852 static const struct MemoryRegionOps imx6ul_ccm_ops = {
 853     .read = imx6ul_ccm_read,
 854     .write = imx6ul_ccm_write,
 855     .endianness = DEVICE_NATIVE_ENDIAN,
 856     .valid = {
 857         /*
 858          * Our device would not work correctly if the guest was doing
 859          * unaligned access. This might not be a limitation on the real
 860          * device but in practice there is no reason for a guest to access
 861          * this device unaligned.
 862          */
 863         .min_access_size = 4,
 864         .max_access_size = 4,
 865         .unaligned = false,
 866     },
 867 };
 868
 869 static const struct MemoryRegionOps imx6ul_analog_ops = {
 870     .read = imx6ul_analog_read,
 871     .write = imx6ul_analog_write,
 872     .endianness = DEVICE_NATIVE_ENDIAN,
 873     .valid = {
 874         /*
 875          * Our device would not work correctly if the guest was doing
 876          * unaligned access. This might not be a limitation on the real
 877          * device but in practice there is no reason for a guest to access
 878          * this device unaligned.
 879          */
 880         .min_access_size = 4,
 881         .max_access_size = 4,
 882         .unaligned = false,
 883     },
 884 };
 885
 886 static void imx6ul_ccm_init(Object *obj)
 887 {
 888     DeviceState *dev = DEVICE(obj);
 889     SysBusDevice *sd = SYS_BUS_DEVICE(obj);
 890     IMX6ULCCMState *s = IMX6UL_CCM(obj);
 891
 892     /* initialize a container for the all memory range */
 893     memory_region_init(&s->container, OBJECT(dev), TYPE_IMX6UL_CCM, 0x8000);
 894
 895     /* We initialize an IO memory region for the CCM part */
 896     memory_region_init_io(&s->ioccm, OBJECT(dev), &imx6ul_ccm_ops, s,
 897                           TYPE_IMX6UL_CCM ".ccm", CCM_MAX * sizeof(uint32_t));
 898
 899     /* Add the CCM as a subregion at offset 0 */
 900     memory_region_add_subregion(&s->container, 0, &s->ioccm);
 901
 902     /* We initialize an IO memory region for the ANALOG part */
 903     memory_region_init_io(&s->ioanalog, OBJECT(dev), &imx6ul_analog_ops, s,
 904                           TYPE_IMX6UL_CCM ".analog",
 905                           CCM_ANALOG_MAX * sizeof(uint32_t));
 906
 907     /* Add the ANALOG as a subregion at offset 0x4000 */
 908     memory_region_add_subregion(&s->container, 0x4000, &s->ioanalog);
 909
 910     sysbus_init_mmio(sd, &s->container);
 911 }
 912
 913 static void imx6ul_ccm_class_init(ObjectClass *klass, void *data)
 914 {
 915     DeviceClass *dc = DEVICE_CLASS(klass);
 916     IMXCCMClass *ccm = IMX_CCM_CLASS(klass);
 917
 918     dc->reset = imx6ul_ccm_reset;
 919     dc->vmsd = &vmstate_imx6ul_ccm;
 920     dc->desc = "i.MX6UL Clock Control Module";
 921
 922     ccm->get_clock_frequency = imx6ul_ccm_get_clock_frequency;
 923 }
 924
 925 static const TypeInfo imx6ul_ccm_info = {
 926     .name          = TYPE_IMX6UL_CCM,
 927     .parent        = TYPE_IMX_CCM,
 928     .instance_size = sizeof(IMX6ULCCMState),
 929     .instance_init = imx6ul_ccm_init,
 930     .class_init    = imx6ul_ccm_class_init,
 931 };
 932
 933 static void imx6ul_ccm_register_types(void)
 934 {
 935     type_register_static(&imx6ul_ccm_info);
 936 }
 937
 938 type_init(imx6ul_ccm_register_types)