hw/omap_clk.c

   1 /*
   2  * OMAP clocks.
   3  *
   4  * Copyright (C) 2006-2008 Andrzej Zaborowski  <balrog@zabor.org>
   5  *
   6  * Clocks data comes in part from arch/arm/mach-omap1/clock.h in Linux.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23 #include "hw.h"
  24 #include "omap.h"
  25
  26 struct clk {
  27     const char *name;
  28     const char *alias;
  29     struct clk *parent;
  30     struct clk *child1;
  31     struct clk *sibling;
  32 #define ALWAYS_ENABLED          (1 << 0)
  33 #define CLOCK_IN_OMAP310        (1 << 10)
  34 #define CLOCK_IN_OMAP730        (1 << 11)
  35 #define CLOCK_IN_OMAP1510       (1 << 12)
  36 #define CLOCK_IN_OMAP16XX       (1 << 13)
  37 #define CLOCK_IN_OMAP242X       (1 << 14)
  38 #define CLOCK_IN_OMAP243X       (1 << 15)
  39 #define CLOCK_IN_OMAP343X       (1 << 16)
  40     uint32_t flags;
  41     int id;
  42
  43     int running;                /* Is currently ticking */
  44     int enabled;                /* Is enabled, regardless of its input clk */
  45     unsigned long rate;         /* Current rate (if .running) */
  46     unsigned int divisor;       /* Rate relative to input (if .enabled) */
  47     unsigned int multiplier;    /* Rate relative to input (if .enabled) */
  48     qemu_irq users[16];         /* Who to notify on change */
  49     int usecount;               /* Automatically idle when unused */
  50 };
  51
  52 static struct clk xtal_osc12m = {
  53     .name       = "xtal_osc_12m",
  54     .rate       = 12000000,
  55     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
  56 };
  57
  58 static struct clk xtal_osc32k = {
  59     .name       = "xtal_osc_32k",
  60     .rate       = 32768,
  61     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
  62             CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
  63 };
  64
  65 static struct clk ck_ref = {
  66     .name       = "ck_ref",
  67     .alias      = "clkin",
  68     .parent     = &xtal_osc12m,
  69     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
  70             ALWAYS_ENABLED,
  71 };
  72
  73 /* If a dpll is disabled it becomes a bypass, child clocks don't stop */
  74 static struct clk dpll1 = {
  75     .name       = "dpll1",
  76     .parent     = &ck_ref,
  77     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
  78             ALWAYS_ENABLED,
  79 };
  80
  81 static struct clk dpll2 = {
  82     .name       = "dpll2",
  83     .parent     = &ck_ref,
  84     .flags      = CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
  85 };
  86
  87 static struct clk dpll3 = {
  88     .name       = "dpll3",
  89     .parent     = &ck_ref,
  90     .flags      = CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
  91 };
  92
  93 static struct clk dpll4 = {
  94     .name       = "dpll4",
  95     .parent     = &ck_ref,
  96     .multiplier = 4,
  97     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
  98 };
  99
 100 static struct clk apll = {
 101     .name       = "apll",
 102     .parent     = &ck_ref,
 103     .multiplier = 48,
 104     .divisor    = 12,
 105     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
 106 };
 107
 108 static struct clk ck_48m = {
 109     .name       = "ck_48m",
 110     .parent     = &dpll4,       /* either dpll4 or apll */
 111     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
 112 };
 113
 114 static struct clk ck_dpll1out = {
 115     .name       = "ck_dpll1out",
 116     .parent     = &dpll1,
 117     .flags      = CLOCK_IN_OMAP16XX,
 118 };
 119
 120 static struct clk sossi_ck = {
 121     .name       = "ck_sossi",
 122     .parent     = &ck_dpll1out,
 123     .flags      = CLOCK_IN_OMAP16XX,
 124 };
 125
 126 static struct clk clkm1 = {
 127     .name       = "clkm1",
 128     .alias      = "ck_gen1",
 129     .parent     = &dpll1,
 130     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
 131             ALWAYS_ENABLED,
 132 };
 133
 134 static struct clk clkm2 = {
 135     .name       = "clkm2",
 136     .alias      = "ck_gen2",
 137     .parent     = &dpll1,
 138     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
 139             ALWAYS_ENABLED,
 140 };
 141
 142 static struct clk clkm3 = {
 143     .name       = "clkm3",
 144     .alias      = "ck_gen3",
 145     .parent     = &dpll1,       /* either dpll1 or ck_ref */
 146     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
 147             ALWAYS_ENABLED,
 148 };
 149
 150 static struct clk arm_ck = {
 151     .name       = "arm_ck",
 152     .alias      = "mpu_ck",
 153     .parent     = &clkm1,
 154     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
 155             ALWAYS_ENABLED,
 156 };
 157
 158 static struct clk armper_ck = {
 159     .name       = "armper_ck",
 160     .alias      = "mpuper_ck",
 161     .parent     = &clkm1,
 162     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
 163 };
 164
 165 static struct clk arm_gpio_ck = {
 166     .name       = "arm_gpio_ck",
 167     .alias      = "mpu_gpio_ck",
 168     .parent     = &clkm1,
 169     .divisor    = 1,
 170     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
 171 };
 172
 173 static struct clk armxor_ck = {
 174     .name       = "armxor_ck",
 175     .alias      = "mpuxor_ck",
 176     .parent     = &ck_ref,
 177     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
 178 };
 179
 180 static struct clk armtim_ck = {
 181     .name       = "armtim_ck",
 182     .alias      = "mputim_ck",
 183     .parent     = &ck_ref,      /* either CLKIN or DPLL1 */
 184     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
 185 };
 186
 187 static struct clk armwdt_ck = {
 188     .name       = "armwdt_ck",
 189     .alias      = "mpuwd_ck",
 190     .parent     = &clkm1,
 191     .divisor    = 14,
 192     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
 193             ALWAYS_ENABLED,
 194 };
 195
 196 static struct clk arminth_ck16xx = {
 197     .name       = "arminth_ck",
 198     .parent     = &arm_ck,
 199     .flags      = CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,
 200     /* Note: On 16xx the frequency can be divided by 2 by programming
 201      * ARM_CKCTL:ARM_INTHCK_SEL(14) to 1
 202      *
 203      * 1510 version is in TC clocks.
 204      */
 205 };
 206
 207 static struct clk dsp_ck = {
 208     .name       = "dsp_ck",
 209     .parent     = &clkm2,
 210     .flags      = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
 211 };
 212
 213 static struct clk dspmmu_ck = {
 214     .name       = "dspmmu_ck",
 215     .parent     = &clkm2,
 216     .flags      = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |
 217             ALWAYS_ENABLED,
 218 };
 219
 220 static struct clk dspper_ck = {
 221     .name       = "dspper_ck",
 222     .parent     = &clkm2,
 223     .flags      = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
 224 };
 225
 226 static struct clk dspxor_ck = {
 227     .name       = "dspxor_ck",
 228     .parent     = &ck_ref,
 229     .flags      = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
 230 };
 231
 232 static struct clk dsptim_ck = {
 233     .name       = "dsptim_ck",
 234     .parent     = &ck_ref,
 235     .flags      = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
 236 };
 237
 238 static struct clk tc_ck = {
 239     .name       = "tc_ck",
 240     .parent     = &clkm3,
 241     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |
 242             CLOCK_IN_OMAP730 | CLOCK_IN_OMAP310 |
 243             ALWAYS_ENABLED,
 244 };
 245
 246 static struct clk arminth_ck15xx = {
 247     .name       = "arminth_ck",
 248     .parent     = &tc_ck,
 249     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
 250     /* Note: On 1510 the frequency follows TC_CK
 251      *
 252      * 16xx version is in MPU clocks.
 253      */
 254 };
 255
 256 static struct clk tipb_ck = {
 257     /* No-idle controlled by "tc_ck" */
 258     .name       = "tipb_ck",
 259     .parent     = &tc_ck,
 260     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
 261 };
 262
 263 static struct clk l3_ocpi_ck = {
 264     /* No-idle controlled by "tc_ck" */
 265     .name       = "l3_ocpi_ck",
 266     .parent     = &tc_ck,
 267     .flags      = CLOCK_IN_OMAP16XX,
 268 };
 269
 270 static struct clk tc1_ck = {
 271     .name       = "tc1_ck",
 272     .parent     = &tc_ck,
 273     .flags      = CLOCK_IN_OMAP16XX,
 274 };
 275
 276 static struct clk tc2_ck = {
 277     .name       = "tc2_ck",
 278     .parent     = &tc_ck,
 279     .flags      = CLOCK_IN_OMAP16XX,
 280 };
 281
 282 static struct clk dma_ck = {
 283     /* No-idle controlled by "tc_ck" */
 284     .name       = "dma_ck",
 285     .parent     = &tc_ck,
 286     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
 287             ALWAYS_ENABLED,
 288 };
 289
 290 static struct clk dma_lcdfree_ck = {
 291     .name       = "dma_lcdfree_ck",
 292     .parent     = &tc_ck,
 293     .flags      = CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,
 294 };
 295
 296 static struct clk api_ck = {
 297     .name       = "api_ck",
 298     .alias      = "mpui_ck",
 299     .parent     = &tc_ck,
 300     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
 301 };
 302
 303 static struct clk lb_ck = {
 304     .name       = "lb_ck",
 305     .parent     = &tc_ck,
 306     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
 307 };
 308
 309 static struct clk lbfree_ck = {
 310     .name       = "lbfree_ck",
 311     .parent     = &tc_ck,
 312     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
 313 };
 314
 315 static struct clk hsab_ck = {
 316     .name       = "hsab_ck",
 317     .parent     = &tc_ck,
 318     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
 319 };
 320
 321 static struct clk rhea1_ck = {
 322     .name       = "rhea1_ck",
 323     .parent     = &tc_ck,
 324     .flags      = CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,
 325 };
 326
 327 static struct clk rhea2_ck = {
 328     .name       = "rhea2_ck",
 329     .parent     = &tc_ck,
 330     .flags      = CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,
 331 };
 332
 333 static struct clk lcd_ck_16xx = {
 334     .name       = "lcd_ck",
 335     .parent     = &clkm3,
 336     .flags      = CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP730,
 337 };
 338
 339 static struct clk lcd_ck_1510 = {
 340     .name       = "lcd_ck",
 341     .parent     = &clkm3,
 342     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
 343 };
 344
 345 static struct clk uart1_1510 = {
 346     .name       = "uart1_ck",
 347     /* Direct from ULPD, no real parent */
 348     .parent     = &armper_ck,   /* either armper_ck or dpll4 */
 349     .rate       = 12000000,
 350     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
 351 };
 352
 353 static struct clk uart1_16xx = {
 354     .name       = "uart1_ck",
 355     /* Direct from ULPD, no real parent */
 356     .parent     = &armper_ck,
 357     .rate       = 48000000,
 358     .flags      = CLOCK_IN_OMAP16XX,
 359 };
 360
 361 static struct clk uart2_ck = {
 362     .name       = "uart2_ck",
 363     /* Direct from ULPD, no real parent */
 364     .parent     = &armper_ck,   /* either armper_ck or dpll4 */
 365     .rate       = 12000000,
 366     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310 |
 367             ALWAYS_ENABLED,
 368 };
 369
 370 static struct clk uart3_1510 = {
 371     .name       = "uart3_ck",
 372     /* Direct from ULPD, no real parent */
 373     .parent     = &armper_ck,   /* either armper_ck or dpll4 */
 374     .rate       = 12000000,
 375     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310 | ALWAYS_ENABLED,
 376 };
 377
 378 static struct clk uart3_16xx = {
 379     .name       = "uart3_ck",
 380     /* Direct from ULPD, no real parent */
 381     .parent     = &armper_ck,
 382     .rate       = 48000000,
 383     .flags      = CLOCK_IN_OMAP16XX,
 384 };
 385
 386 static struct clk usb_clk0 = {  /* 6 MHz output on W4_USB_CLK0 */
 387     .name       = "usb_clk0",
 388     .alias      = "usb.clko",
 389     /* Direct from ULPD, no parent */
 390     .rate       = 6000000,
 391     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
 392 };
 393
 394 static struct clk usb_hhc_ck1510 = {
 395     .name       = "usb_hhc_ck",
 396     /* Direct from ULPD, no parent */
 397     .rate       = 48000000, /* Actually 2 clocks, 12MHz and 48MHz */
 398     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP310,
 399 };
 400
 401 static struct clk usb_hhc_ck16xx = {
 402     .name       = "usb_hhc_ck",
 403     /* Direct from ULPD, no parent */
 404     .rate       = 48000000,
 405     /* OTG_SYSCON_2.OTG_PADEN == 0 (not 1510-compatible) */
 406     .flags      = CLOCK_IN_OMAP16XX,
 407 };
 408
 409 static struct clk usb_w2fc_mclk = {
 410     .name       = "usb_w2fc_mclk",
 411     .alias      = "usb_w2fc_ck",
 412     .parent     = &ck_48m,
 413     .rate       = 48000000,
 414     .flags      = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
 415 };
 416
 417 static struct clk mclk_1510 = {
 418     .name       = "mclk",
 419     /* Direct from ULPD, no parent. May be enabled by ext hardware. */
 420     .rate       = 12000000,
 421     .flags      = CLOCK_IN_OMAP1510,
 422 };
 423
 424 static struct clk bclk_310 = {
 425     .name       = "bt_mclk_out",        /* Alias midi_mclk_out? */
 426     .parent     = &armper_ck,
 427     .flags      = CLOCK_IN_OMAP310,
 428 };
 429
 430 static struct clk mclk_310 = {
 431     .name       = "com_mclk_out",
 432     .parent     = &armper_ck,
 433     .flags      = CLOCK_IN_OMAP310,
 434 };
 435
 436 static struct clk mclk_16xx = {
 437     .name       = "mclk",
 438     /* Direct from ULPD, no parent. May be enabled by ext hardware. */
 439     .flags      = CLOCK_IN_OMAP16XX,
 440 };
 441
 442 static struct clk bclk_1510 = {
 443     .name       = "bclk",
 444     /* Direct from ULPD, no parent. May be enabled by ext hardware. */
 445     .rate       = 12000000,
 446     .flags      = CLOCK_IN_OMAP1510,
 447 };
 448
 449 static struct clk bclk_16xx = {
 450     .name       = "bclk",
 451     /* Direct from ULPD, no parent. May be enabled by ext hardware. */
 452     .flags      = CLOCK_IN_OMAP16XX,
 453 };
 454
 455 static struct clk mmc1_ck = {
 456     .name       = "mmc_ck",
 457     .id         = 1,
 458     /* Functional clock is direct from ULPD, interface clock is ARMPER */
 459     .parent     = &armper_ck,   /* either armper_ck or dpll4 */
 460     .rate       = 48000000,
 461     .flags      = CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX | CLOCK_IN_OMAP310,
 462 };
 463
 464 static struct clk mmc2_ck = {
 465     .name       = "mmc_ck",
 466     .id         = 2,
 467     /* Functional clock is direct from ULPD, interface clock is ARMPER */
 468     .parent     = &armper_ck,
 469     .rate       = 48000000,
 470     .flags      = CLOCK_IN_OMAP16XX,
 471 };
 472
 473 static struct clk cam_mclk = {
 474     .name       = "cam.mclk",
 475     .flags      = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
 476     .rate       = 12000000,
 477 };
 478
 479 static struct clk cam_exclk = {
 480     .name       = "cam.exclk",
 481     .flags      = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
 482     /* Either 12M from cam.mclk or 48M from dpll4 */
 483     .parent     = &cam_mclk,
 484 };
 485
 486 static struct clk cam_lclk = {
 487     .name       = "cam.lclk",
 488     .flags      = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX,
 489 };
 490
 491 static struct clk i2c_fck = {
 492     .name       = "i2c_fck",
 493     .id         = 1,
 494     .flags      = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |
 495             ALWAYS_ENABLED,
 496     .parent     = &armxor_ck,
 497 };
 498
 499 static struct clk i2c_ick = {
 500     .name       = "i2c_ick",
 501     .id         = 1,
 502     .flags      = CLOCK_IN_OMAP16XX | ALWAYS_ENABLED,
 503     .parent     = &armper_ck,
 504 };
 505
 506 static struct clk clk32k = {
 507     .name       = "clk32-kHz",
 508     .flags      = CLOCK_IN_OMAP310 | CLOCK_IN_OMAP1510 | CLOCK_IN_OMAP16XX |
 509             CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
 510     .parent     = &xtal_osc32k,
 511 };
 512
 513 static struct clk ref_clk = {
 514     .name       = "ref_clk",
 515     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
 516     .rate       = 12000000,     /* 12 MHz or 13 MHz or 19.2 MHz */
 517     /*.parent   = sys.xtalin */
 518 };
 519
 520 static struct clk apll_96m = {
 521     .name       = "apll_96m",
 522     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
 523     .rate       = 96000000,
 524     /*.parent   = ref_clk */
 525 };
 526
 527 static struct clk apll_54m = {
 528     .name       = "apll_54m",
 529     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
 530     .rate       = 54000000,
 531     /*.parent   = ref_clk */
 532 };
 533
 534 static struct clk sys_clk = {
 535     .name       = "sys_clk",
 536     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
 537     .rate       = 32768,
 538     /*.parent   = sys.xtalin */
 539 };
 540
 541 static struct clk sleep_clk = {
 542     .name       = "sleep_clk",
 543     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
 544     .rate       = 32768,
 545     /*.parent   = sys.xtalin */
 546 };
 547
 548 static struct clk dpll_ck = {
 549     .name       = "dpll",
 550     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
 551     .parent     = &ref_clk,
 552 };
 553
 554 static struct clk dpll_x2_ck = {
 555     .name       = "dpll_x2",
 556     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
 557     .parent     = &ref_clk,
 558 };
 559
 560 static struct clk wdt1_sys_clk = {
 561     .name       = "wdt1_sys_clk",
 562     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X | ALWAYS_ENABLED,
 563     .rate       = 32768,
 564     /*.parent   = sys.xtalin */
 565 };
 566
 567 static struct clk func_96m_clk = {
 568     .name       = "func_96m_clk",
 569     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 570     .divisor    = 1,
 571     .parent     = &apll_96m,
 572 };
 573
 574 static struct clk func_48m_clk = {
 575     .name       = "func_48m_clk",
 576     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 577     .divisor    = 2,
 578     .parent     = &apll_96m,
 579 };
 580
 581 static struct clk func_12m_clk = {
 582     .name       = "func_12m_clk",
 583     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 584     .divisor    = 8,
 585     .parent     = &apll_96m,
 586 };
 587
 588 static struct clk func_54m_clk = {
 589     .name       = "func_54m_clk",
 590     .flags      = CLOCK_IN_OMAP242X,
 591     .divisor    = 1,
 592     .parent     = &apll_54m,
 593 };
 594
 595 static struct clk sys_clkout = {
 596     .name       = "clkout",
 597     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 598     .parent     = &sys_clk,
 599 };
 600
 601 static struct clk sys_clkout2 = {
 602     .name       = "clkout2",
 603     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 604     .parent     = &sys_clk,
 605 };
 606
 607 static struct clk core_clk = {
 608     .name       = "core_clk",
 609     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 610     .parent     = &dpll_x2_ck,  /* Switchable between dpll_ck and clk32k */
 611 };
 612
 613 static struct clk l3_clk = {
 614     .name       = "l3_clk",
 615     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 616     .parent     = &core_clk,
 617 };
 618
 619 static struct clk core_l4_iclk = {
 620     .name       = "core_l4_iclk",
 621     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 622     .parent     = &l3_clk,
 623 };
 624
 625 static struct clk wu_l4_iclk = {
 626     .name       = "wu_l4_iclk",
 627     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 628     .parent     = &l3_clk,
 629 };
 630
 631 static struct clk core_l3_iclk = {
 632     .name       = "core_l3_iclk",
 633     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 634     .parent     = &core_clk,
 635 };
 636
 637 static struct clk core_l4_usb_clk = {
 638     .name       = "core_l4_usb_clk",
 639     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 640     .parent     = &l3_clk,
 641 };
 642
 643 static struct clk wu_gpt1_clk = {
 644     .name       = "wu_gpt1_clk",
 645     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 646     .parent     = &sys_clk,
 647 };
 648
 649 static struct clk wu_32k_clk = {
 650     .name       = "wu_32k_clk",
 651     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 652     .parent     = &sys_clk,
 653 };
 654
 655 static struct clk uart1_fclk = {
 656     .name       = "uart1_fclk",
 657     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 658     .parent     = &func_48m_clk,
 659 };
 660
 661 static struct clk uart1_iclk = {
 662     .name       = "uart1_iclk",
 663     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 664     .parent     = &core_l4_iclk,
 665 };
 666
 667 static struct clk uart2_fclk = {
 668     .name       = "uart2_fclk",
 669     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 670     .parent     = &func_48m_clk,
 671 };
 672
 673 static struct clk uart2_iclk = {
 674     .name       = "uart2_iclk",
 675     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 676     .parent     = &core_l4_iclk,
 677 };
 678
 679 static struct clk uart3_fclk = {
 680     .name       = "uart3_fclk",
 681     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 682     .parent     = &func_48m_clk,
 683 };
 684
 685 static struct clk uart3_iclk = {
 686     .name       = "uart3_iclk",
 687     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 688     .parent     = &core_l4_iclk,
 689 };
 690
 691 static struct clk mpu_fclk = {
 692     .name       = "mpu_fclk",
 693     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 694     .parent     = &core_clk,
 695 };
 696
 697 static struct clk mpu_iclk = {
 698     .name       = "mpu_iclk",
 699     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 700     .parent     = &core_clk,
 701 };
 702
 703 static struct clk int_m_fclk = {
 704     .name       = "int_m_fclk",
 705     .alias      = "mpu_intc_fclk",
 706     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 707     .parent     = &core_clk,
 708 };
 709
 710 static struct clk int_m_iclk = {
 711     .name       = "int_m_iclk",
 712     .alias      = "mpu_intc_iclk",
 713     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 714     .parent     = &core_clk,
 715 };
 716
 717 static struct clk core_gpt2_clk = {
 718     .name       = "core_gpt2_clk",
 719     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 720     .parent     = &sys_clk,
 721 };
 722
 723 static struct clk core_gpt3_clk = {
 724     .name       = "core_gpt3_clk",
 725     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 726     .parent     = &sys_clk,
 727 };
 728
 729 static struct clk core_gpt4_clk = {
 730     .name       = "core_gpt4_clk",
 731     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 732     .parent     = &sys_clk,
 733 };
 734
 735 static struct clk core_gpt5_clk = {
 736     .name       = "core_gpt5_clk",
 737     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 738     .parent     = &sys_clk,
 739 };
 740
 741 static struct clk core_gpt6_clk = {
 742     .name       = "core_gpt6_clk",
 743     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 744     .parent     = &sys_clk,
 745 };
 746
 747 static struct clk core_gpt7_clk = {
 748     .name       = "core_gpt7_clk",
 749     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 750     .parent     = &sys_clk,
 751 };
 752
 753 static struct clk core_gpt8_clk = {
 754     .name       = "core_gpt8_clk",
 755     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 756     .parent     = &sys_clk,
 757 };
 758
 759 static struct clk core_gpt9_clk = {
 760     .name       = "core_gpt9_clk",
 761     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 762     .parent     = &sys_clk,
 763 };
 764
 765 static struct clk core_gpt10_clk = {
 766     .name       = "core_gpt10_clk",
 767     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 768     .parent     = &sys_clk,
 769 };
 770
 771 static struct clk core_gpt11_clk = {
 772     .name       = "core_gpt11_clk",
 773     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 774     .parent     = &sys_clk,
 775 };
 776
 777 static struct clk core_gpt12_clk = {
 778     .name       = "core_gpt12_clk",
 779     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 780     .parent     = &sys_clk,
 781 };
 782
 783 static struct clk mcbsp1_clk = {
 784     .name       = "mcbsp1_cg",
 785     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 786     .divisor    = 2,
 787     .parent     = &func_96m_clk,
 788 };
 789
 790 static struct clk mcbsp2_clk = {
 791     .name       = "mcbsp2_cg",
 792     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 793     .divisor    = 2,
 794     .parent     = &func_96m_clk,
 795 };
 796
 797 static struct clk emul_clk = {
 798     .name       = "emul_ck",
 799     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 800     .parent     = &func_54m_clk,
 801 };
 802
 803 static struct clk sdma_fclk = {
 804     .name       = "sdma_fclk",
 805     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 806     .parent     = &l3_clk,
 807 };
 808
 809 static struct clk sdma_iclk = {
 810     .name       = "sdma_iclk",
 811     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 812     .parent     = &core_l3_iclk, /* core_l4_iclk for the configuration port */
 813 };
 814
 815 static struct clk i2c1_fclk = {
 816     .name       = "i2c1.fclk",
 817     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 818     .parent     = &func_12m_clk,
 819     .divisor    = 1,
 820 };
 821
 822 static struct clk i2c1_iclk = {
 823     .name       = "i2c1.iclk",
 824     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 825     .parent     = &core_l4_iclk,
 826 };
 827
 828 static struct clk i2c2_fclk = {
 829     .name       = "i2c2.fclk",
 830     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 831     .parent     = &func_12m_clk,
 832     .divisor    = 1,
 833 };
 834
 835 static struct clk i2c2_iclk = {
 836     .name       = "i2c2.iclk",
 837     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 838     .parent     = &core_l4_iclk,
 839 };
 840
 841 static struct clk gpio_dbclk[4] = {
 842     {
 843         .name   = "gpio1_dbclk",
 844         .flags  = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 845         .parent = &wu_32k_clk,
 846     }, {
 847         .name   = "gpio2_dbclk",
 848         .flags  = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 849         .parent = &wu_32k_clk,
 850     }, {
 851         .name   = "gpio3_dbclk",
 852         .flags  = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 853         .parent = &wu_32k_clk,
 854     }, {
 855         .name   = "gpio4_dbclk",
 856         .flags  = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 857         .parent = &wu_32k_clk,
 858     },
 859 };
 860
 861 static struct clk gpio_iclk = {
 862     .name       = "gpio_iclk",
 863     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 864     .parent     = &wu_l4_iclk,
 865 };
 866
 867 static struct clk mmc_fck = {
 868     .name       = "mmc_fclk",
 869     .flags      = CLOCK_IN_OMAP242X,
 870     .parent     = &func_96m_clk,
 871 };
 872
 873 static struct clk mmc_ick = {
 874     .name       = "mmc_iclk",
 875     .flags      = CLOCK_IN_OMAP242X,
 876     .parent     = &core_l4_iclk,
 877 };
 878
 879 static struct clk spi_fclk[3] = {
 880     {
 881         .name   = "spi1_fclk",
 882         .flags  = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 883         .parent = &func_48m_clk,
 884     }, {
 885         .name   = "spi2_fclk",
 886         .flags  = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 887         .parent = &func_48m_clk,
 888     }, {
 889         .name   = "spi3_fclk",
 890         .flags  = CLOCK_IN_OMAP243X,
 891         .parent = &func_48m_clk,
 892     },
 893 };
 894
 895 static struct clk dss_clk[2] = {
 896     {
 897         .name   = "dss_clk1",
 898         .flags  = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 899         .parent = &core_clk,
 900     }, {
 901         .name   = "dss_clk2",
 902         .flags  = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 903         .parent = &sys_clk,
 904     },
 905 };
 906
 907 static struct clk dss_54m_clk = {
 908     .name       = "dss_54m_clk",
 909     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 910     .parent     = &func_54m_clk,
 911 };
 912
 913 static struct clk dss_l3_iclk = {
 914     .name       = "dss_l3_iclk",
 915     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 916     .parent     = &core_l3_iclk,
 917 };
 918
 919 static struct clk dss_l4_iclk = {
 920     .name       = "dss_l4_iclk",
 921     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 922     .parent     = &core_l4_iclk,
 923 };
 924
 925 static struct clk spi_iclk[3] = {
 926     {
 927         .name   = "spi1_iclk",
 928         .flags  = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 929         .parent = &core_l4_iclk,
 930     }, {
 931         .name   = "spi2_iclk",
 932         .flags  = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 933         .parent = &core_l4_iclk,
 934     }, {
 935         .name   = "spi3_iclk",
 936         .flags  = CLOCK_IN_OMAP243X,
 937         .parent = &core_l4_iclk,
 938     },
 939 };
 940
 941 static struct clk omapctrl_clk = {
 942     .name       = "omapctrl_iclk",
 943     .flags      = CLOCK_IN_OMAP242X | CLOCK_IN_OMAP243X,
 944     /* XXX Should be in WKUP domain */
 945     .parent     = &core_l4_iclk,
 946 };
 947
 948 static struct clk *onchip_clks[] = {
 949     /* OMAP 1 */
 950
 951     /* non-ULPD clocks */
 952     &xtal_osc12m,
 953     &xtal_osc32k,
 954     &ck_ref,
 955     &dpll1,
 956     &dpll2,
 957     &dpll3,
 958     &dpll4,
 959     &apll,
 960     &ck_48m,
 961     /* CK_GEN1 clocks */
 962     &clkm1,
 963     &ck_dpll1out,
 964     &sossi_ck,
 965     &arm_ck,
 966     &armper_ck,
 967     &arm_gpio_ck,
 968     &armxor_ck,
 969     &armtim_ck,
 970     &armwdt_ck,
 971     &arminth_ck15xx,  &arminth_ck16xx,
 972     /* CK_GEN2 clocks */
 973     &clkm2,
 974     &dsp_ck,
 975     &dspmmu_ck,
 976     &dspper_ck,
 977     &dspxor_ck,
 978     &dsptim_ck,
 979     /* CK_GEN3 clocks */
 980     &clkm3,
 981     &tc_ck,
 982     &tipb_ck,
 983     &l3_ocpi_ck,
 984     &tc1_ck,
 985     &tc2_ck,
 986     &dma_ck,
 987     &dma_lcdfree_ck,
 988     &api_ck,
 989     &lb_ck,
 990     &lbfree_ck,
 991     &hsab_ck,
 992     &rhea1_ck,
 993     &rhea2_ck,
 994     &lcd_ck_16xx,
 995     &lcd_ck_1510,
 996     /* ULPD clocks */
 997     &uart1_1510,
 998     &uart1_16xx,
 999     &uart2_ck,
1000     &uart3_1510,
1001     &uart3_16xx,
1002     &usb_clk0,
1003     &usb_hhc_ck1510, &usb_hhc_ck16xx,
1004     &mclk_1510,  &mclk_16xx, &mclk_310,
1005     &bclk_1510,  &bclk_16xx, &bclk_310,
1006     &mmc1_ck,
1007     &mmc2_ck,
1008     &cam_mclk,
1009     &cam_exclk,
1010     &cam_lclk,
1011     &clk32k,
1012     &usb_w2fc_mclk,
1013     /* Virtual clocks */
1014     &i2c_fck,
1015     &i2c_ick,
1016
1017     /* OMAP 2 */
1018
1019     &ref_clk,
1020     &apll_96m,
1021     &apll_54m,
1022     &sys_clk,
1023     &sleep_clk,
1024     &dpll_ck,
1025     &dpll_x2_ck,
1026     &wdt1_sys_clk,
1027     &func_96m_clk,
1028     &func_48m_clk,
1029     &func_12m_clk,
1030     &func_54m_clk,
1031     &sys_clkout,
1032     &sys_clkout2,
1033     &core_clk,
1034     &l3_clk,
1035     &core_l4_iclk,
1036     &wu_l4_iclk,
1037     &core_l3_iclk,
1038     &core_l4_usb_clk,
1039     &wu_gpt1_clk,
1040     &wu_32k_clk,
1041     &uart1_fclk,
1042     &uart1_iclk,
1043     &uart2_fclk,
1044     &uart2_iclk,
1045     &uart3_fclk,
1046     &uart3_iclk,
1047     &mpu_fclk,
1048     &mpu_iclk,
1049     &int_m_fclk,
1050     &int_m_iclk,
1051     &core_gpt2_clk,
1052     &core_gpt3_clk,
1053     &core_gpt4_clk,
1054     &core_gpt5_clk,
1055     &core_gpt6_clk,
1056     &core_gpt7_clk,
1057     &core_gpt8_clk,
1058     &core_gpt9_clk,
1059     &core_gpt10_clk,
1060     &core_gpt11_clk,
1061     &core_gpt12_clk,
1062     &mcbsp1_clk,
1063     &mcbsp2_clk,
1064     &emul_clk,
1065     &sdma_fclk,
1066     &sdma_iclk,
1067     &i2c1_fclk,
1068     &i2c1_iclk,
1069     &i2c2_fclk,
1070     &i2c2_iclk,
1071     &gpio_dbclk[0],
1072     &gpio_dbclk[1],
1073     &gpio_dbclk[2],
1074     &gpio_dbclk[3],
1075     &gpio_iclk,
1076     &mmc_fck,
1077     &mmc_ick,
1078     &spi_fclk[0],
1079     &spi_iclk[0],
1080     &spi_fclk[1],
1081     &spi_iclk[1],
1082     &spi_fclk[2],
1083     &spi_iclk[2],
1084     &dss_clk[0],
1085     &dss_clk[1],
1086     &dss_54m_clk,
1087     &dss_l3_iclk,
1088     &dss_l4_iclk,
1089     &omapctrl_clk,
1090
1091     0
1092 };
1093
1094 void omap_clk_adduser(struct clk *clk, qemu_irq user)
1095 {
1096     qemu_irq *i;
1097
1098     for (i = clk->users; *i; i ++);
1099     *i = user;
1100 }
1101
1102 /* If a clock is allowed to idle, it is disabled automatically when
1103  * all of clock domains using it are disabled.  */
1104 int omap_clk_is_idle(struct clk *clk)
1105 {
1106     struct clk *chld;
1107
1108     if (!clk->enabled && (!clk->usecount || !(clk->flags && ALWAYS_ENABLED)))
1109         return 1;
1110     if (clk->usecount)
1111         return 0;
1112
1113     for (chld = clk->child1; chld; chld = chld->sibling)
1114         if (!omap_clk_is_idle(chld))
1115             return 0;
1116     return 1;
1117 }
1118
1119 struct clk *omap_findclk(struct omap_mpu_state_s *mpu, const char *name)
1120 {
1121     struct clk *i;
1122
1123     for (i = mpu->clks; i->name; i ++)
1124         if (!strcmp(i->name, name) || (i->alias && !strcmp(i->alias, name)))
1125             return i;
1126     cpu_abort(mpu->env, "%s: %s not found\n", __FUNCTION__, name);
1127 }
1128
1129 void omap_clk_get(struct clk *clk)
1130 {
1131     clk->usecount ++;
1132 }
1133
1134 void omap_clk_put(struct clk *clk)
1135 {
1136     if (!(clk->usecount --))
1137         cpu_abort(cpu_single_env, "%s: %s is not in use\n",
1138                         __FUNCTION__, clk->name);
1139 }
1140
1141 static void omap_clk_update(struct clk *clk)
1142 {
1143     int parent, running;
1144     qemu_irq *user;
1145     struct clk *i;
1146
1147     if (clk->parent)
1148         parent = clk->parent->running;
1149     else
1150         parent = 1;
1151
1152     running = parent && (clk->enabled ||
1153                     ((clk->flags & ALWAYS_ENABLED) && clk->usecount));
1154     if (clk->running != running) {
1155         clk->running = running;
1156         for (user = clk->users; *user; user ++)
1157             qemu_set_irq(*user, running);
1158         for (i = clk->child1; i; i = i->sibling)
1159             omap_clk_update(i);
1160     }
1161 }
1162
1163 static void omap_clk_rate_update_full(struct clk *clk, unsigned long int rate,
1164                 unsigned long int div, unsigned long int mult)
1165 {
1166     struct clk *i;
1167     qemu_irq *user;
1168
1169     clk->rate = muldiv64(rate, mult, div);
1170     if (clk->running)
1171         for (user = clk->users; *user; user ++)
1172             qemu_irq_raise(*user);
1173     for (i = clk->child1; i; i = i->sibling)
1174         omap_clk_rate_update_full(i, rate,
1175                         div * i->divisor, mult * i->multiplier);
1176 }
1177
1178 static void omap_clk_rate_update(struct clk *clk)
1179 {
1180     struct clk *i;
1181     unsigned long int div, mult = div = 1;
1182
1183     for (i = clk; i->parent; i = i->parent) {
1184         div *= i->divisor;
1185         mult *= i->multiplier;
1186     }
1187
1188     omap_clk_rate_update_full(clk, i->rate, div, mult);
1189 }
1190
1191 void omap_clk_reparent(struct clk *clk, struct clk *parent)
1192 {
1193     struct clk **p;
1194
1195     if (clk->parent) {
1196         for (p = &clk->parent->child1; *p != clk; p = &(*p)->sibling);
1197         *p = clk->sibling;
1198     }
1199
1200     clk->parent = parent;
1201     if (parent) {
1202         clk->sibling = parent->child1;
1203         parent->child1 = clk;
1204         omap_clk_update(clk);
1205         omap_clk_rate_update(clk);
1206     } else
1207         clk->sibling = 0;
1208 }
1209
1210 void omap_clk_onoff(struct clk *clk, int on)
1211 {
1212     clk->enabled = on;
1213     omap_clk_update(clk);
1214 }
1215
1216 void omap_clk_canidle(struct clk *clk, int can)
1217 {
1218     if (can)
1219         omap_clk_put(clk);
1220     else
1221         omap_clk_get(clk);
1222 }
1223
1224 void omap_clk_setrate(struct clk *clk, int divide, int multiply)
1225 {
1226     clk->divisor = divide;
1227     clk->multiplier = multiply;
1228     omap_clk_rate_update(clk);
1229 }
1230
1231 int64_t omap_clk_getrate(omap_clk clk)
1232 {
1233     return clk->rate;
1234 }
1235
1236 void omap_clk_init(struct omap_mpu_state_s *mpu)
1237 {
1238     struct clk **i, *j, *k;
1239     int count;
1240     int flag;
1241
1242     if (cpu_is_omap310(mpu))
1243         flag = CLOCK_IN_OMAP310;
1244     else if (cpu_is_omap1510(mpu))
1245         flag = CLOCK_IN_OMAP1510;
1246     else if (cpu_is_omap2410(mpu) || cpu_is_omap2420(mpu))
1247         flag = CLOCK_IN_OMAP242X;
1248     else if (cpu_is_omap2430(mpu))
1249         flag = CLOCK_IN_OMAP243X;
1250     else if (cpu_is_omap3430(mpu))
1251         flag = CLOCK_IN_OMAP243X;
1252     else
1253         return;
1254
1255     for (i = onchip_clks, count = 0; *i; i ++)
1256         if ((*i)->flags & flag)
1257             count ++;
1258     mpu->clks = (struct clk *) qemu_mallocz(sizeof(struct clk) * (count + 1));
1259     for (i = onchip_clks, j = mpu->clks; *i; i ++)
1260         if ((*i)->flags & flag) {
1261             memcpy(j, *i, sizeof(struct clk));
1262             for (k = mpu->clks; k < j; k ++)
1263                 if (j->parent && !strcmp(j->parent->name, k->name)) {
1264                     j->parent = k;
1265                     j->sibling = k->child1;
1266                     k->child1 = j;
1267                 } else if (k->parent && !strcmp(k->parent->name, j->name)) {
1268                     k->parent = j;
1269                     k->sibling = j->child1;
1270                     j->child1 = k;
1271                 }
1272             j->divisor = j->divisor ?: 1;
1273             j->multiplier = j->multiplier ?: 1;
1274             j ++;
1275         }
1276     for (j = mpu->clks; count --; j ++) {
1277         omap_clk_update(j);
1278         omap_clk_rate_update(j);
1279     }
1280 }