hw/misc/arm_sysctl.c

   1 /*
   2  * Status and system control registers for ARM RealView/Versatile boards.
   3  *
   4  * Copyright (c) 2006-2007 CodeSourcery.
   5  * Written by Paul Brook
   6  *
   7  * This code is licensed under the GPL.
   8  */
   9
  10 #include "hw/hw.h"
  11 #include "qemu/timer.h"
  12 #include "qemu/bitops.h"
  13 #include "hw/sysbus.h"
  14 #include "hw/arm/primecell.h"
  15 #include "sysemu/sysemu.h"
  16
  17 #define LOCK_VALUE 0xa05f
  18
  19 typedef struct {
  20     SysBusDevice busdev;
  21     MemoryRegion iomem;
  22     qemu_irq pl110_mux_ctrl;
  23
  24     uint32_t sys_id;
  25     uint32_t leds;
  26     uint16_t lockval;
  27     uint32_t cfgdata1;
  28     uint32_t cfgdata2;
  29     uint32_t flags;
  30     uint32_t nvflags;
  31     uint32_t resetlevel;
  32     uint32_t proc_id;
  33     uint32_t sys_mci;
  34     uint32_t sys_cfgdata;
  35     uint32_t sys_cfgctrl;
  36     uint32_t sys_cfgstat;
  37     uint32_t sys_clcd;
  38     uint32_t mb_clock[6];
  39     uint32_t *db_clock;
  40     uint32_t db_num_vsensors;
  41     uint32_t *db_voltage;
  42     uint32_t db_num_clocks;
  43     uint32_t *db_clock_reset;
  44 } arm_sysctl_state;
  45
  46 static const VMStateDescription vmstate_arm_sysctl = {
  47     .name = "realview_sysctl",
  48     .version_id = 4,
  49     .minimum_version_id = 1,
  50     .fields = (VMStateField[]) {
  51         VMSTATE_UINT32(leds, arm_sysctl_state),
  52         VMSTATE_UINT16(lockval, arm_sysctl_state),
  53         VMSTATE_UINT32(cfgdata1, arm_sysctl_state),
  54         VMSTATE_UINT32(cfgdata2, arm_sysctl_state),
  55         VMSTATE_UINT32(flags, arm_sysctl_state),
  56         VMSTATE_UINT32(nvflags, arm_sysctl_state),
  57         VMSTATE_UINT32(resetlevel, arm_sysctl_state),
  58         VMSTATE_UINT32_V(sys_mci, arm_sysctl_state, 2),
  59         VMSTATE_UINT32_V(sys_cfgdata, arm_sysctl_state, 2),
  60         VMSTATE_UINT32_V(sys_cfgctrl, arm_sysctl_state, 2),
  61         VMSTATE_UINT32_V(sys_cfgstat, arm_sysctl_state, 2),
  62         VMSTATE_UINT32_V(sys_clcd, arm_sysctl_state, 3),
  63         VMSTATE_UINT32_ARRAY_V(mb_clock, arm_sysctl_state, 6, 4),
  64         VMSTATE_VARRAY_UINT32(db_clock, arm_sysctl_state, db_num_clocks,
  65                               4, vmstate_info_uint32, uint32_t),
  66         VMSTATE_END_OF_LIST()
  67     }
  68 };
  69
  70 /* The PB926 actually uses a different format for
  71  * its SYS_ID register. Fortunately the bits which are
  72  * board type on later boards are distinct.
  73  */
  74 #define BOARD_ID_PB926 0x100
  75 #define BOARD_ID_EB 0x140
  76 #define BOARD_ID_PBA8 0x178
  77 #define BOARD_ID_PBX 0x182
  78 #define BOARD_ID_VEXPRESS 0x190
  79
  80 static int board_id(arm_sysctl_state *s)
  81 {
  82     /* Extract the board ID field from the SYS_ID register value */
  83     return (s->sys_id >> 16) & 0xfff;
  84 }
  85
  86 static void arm_sysctl_reset(DeviceState *d)
  87 {
  88     arm_sysctl_state *s = FROM_SYSBUS(arm_sysctl_state, SYS_BUS_DEVICE(d));
  89     int i;
  90
  91     s->leds = 0;
  92     s->lockval = 0;
  93     s->cfgdata1 = 0;
  94     s->cfgdata2 = 0;
  95     s->flags = 0;
  96     s->resetlevel = 0;
  97     /* Motherboard oscillators (in Hz) */
  98     s->mb_clock[0] = 50000000; /* Static memory clock: 50MHz */
  99     s->mb_clock[1] = 23750000; /* motherboard CLCD clock: 23.75MHz */
 100     s->mb_clock[2] = 24000000; /* IO FPGA peripheral clock: 24MHz */
 101     s->mb_clock[3] = 24000000; /* IO FPGA reserved clock: 24MHz */
 102     s->mb_clock[4] = 24000000; /* System bus global clock: 24MHz */
 103     s->mb_clock[5] = 24000000; /* IO FPGA reserved clock: 24MHz */
 104     /* Daughterboard oscillators: reset from property values */
 105     for (i = 0; i < s->db_num_clocks; i++) {
 106         s->db_clock[i] = s->db_clock_reset[i];
 107     }
 108     if (board_id(s) == BOARD_ID_VEXPRESS) {
 109         /* On VExpress this register will RAZ/WI */
 110         s->sys_clcd = 0;
 111     } else {
 112         /* All others: CLCDID 0x1f, indicating VGA */
 113         s->sys_clcd = 0x1f00;
 114     }
 115 }
 116
 117 static uint64_t arm_sysctl_read(void *opaque, hwaddr offset,
 118                                 unsigned size)
 119 {
 120     arm_sysctl_state *s = (arm_sysctl_state *)opaque;
 121
 122     switch (offset) {
 123     case 0x00: /* ID */
 124         return s->sys_id;
 125     case 0x04: /* SW */
 126         /* General purpose hardware switches.
 127            We don't have a useful way of exposing these to the user.  */
 128         return 0;
 129     case 0x08: /* LED */
 130         return s->leds;
 131     case 0x20: /* LOCK */
 132         return s->lockval;
 133     case 0x0c: /* OSC0 */
 134     case 0x10: /* OSC1 */
 135     case 0x14: /* OSC2 */
 136     case 0x18: /* OSC3 */
 137     case 0x1c: /* OSC4 */
 138     case 0x24: /* 100HZ */
 139         /* ??? Implement these.  */
 140         return 0;
 141     case 0x28: /* CFGDATA1 */
 142         return s->cfgdata1;
 143     case 0x2c: /* CFGDATA2 */
 144         return s->cfgdata2;
 145     case 0x30: /* FLAGS */
 146         return s->flags;
 147     case 0x38: /* NVFLAGS */
 148         return s->nvflags;
 149     case 0x40: /* RESETCTL */
 150         if (board_id(s) == BOARD_ID_VEXPRESS) {
 151             /* reserved: RAZ/WI */
 152             return 0;
 153         }
 154         return s->resetlevel;
 155     case 0x44: /* PCICTL */
 156         return 1;
 157     case 0x48: /* MCI */
 158         return s->sys_mci;
 159     case 0x4c: /* FLASH */
 160         return 0;
 161     case 0x50: /* CLCD */
 162         return s->sys_clcd;
 163     case 0x54: /* CLCDSER */
 164         return 0;
 165     case 0x58: /* BOOTCS */
 166         return 0;
 167     case 0x5c: /* 24MHz */
 168         return muldiv64(qemu_get_clock_ns(vm_clock), 24000000, get_ticks_per_sec());
 169     case 0x60: /* MISC */
 170         return 0;
 171     case 0x84: /* PROCID0 */
 172         return s->proc_id;
 173     case 0x88: /* PROCID1 */
 174         return 0xff000000;
 175     case 0x64: /* DMAPSR0 */
 176     case 0x68: /* DMAPSR1 */
 177     case 0x6c: /* DMAPSR2 */
 178     case 0x70: /* IOSEL */
 179     case 0x74: /* PLDCTL */
 180     case 0x80: /* BUSID */
 181     case 0x8c: /* OSCRESET0 */
 182     case 0x90: /* OSCRESET1 */
 183     case 0x94: /* OSCRESET2 */
 184     case 0x98: /* OSCRESET3 */
 185     case 0x9c: /* OSCRESET4 */
 186     case 0xc0: /* SYS_TEST_OSC0 */
 187     case 0xc4: /* SYS_TEST_OSC1 */
 188     case 0xc8: /* SYS_TEST_OSC2 */
 189     case 0xcc: /* SYS_TEST_OSC3 */
 190     case 0xd0: /* SYS_TEST_OSC4 */
 191         return 0;
 192     case 0xa0: /* SYS_CFGDATA */
 193         if (board_id(s) != BOARD_ID_VEXPRESS) {
 194             goto bad_reg;
 195         }
 196         return s->sys_cfgdata;
 197     case 0xa4: /* SYS_CFGCTRL */
 198         if (board_id(s) != BOARD_ID_VEXPRESS) {
 199             goto bad_reg;
 200         }
 201         return s->sys_cfgctrl;
 202     case 0xa8: /* SYS_CFGSTAT */
 203         if (board_id(s) != BOARD_ID_VEXPRESS) {
 204             goto bad_reg;
 205         }
 206         return s->sys_cfgstat;
 207     default:
 208     bad_reg:
 209         qemu_log_mask(LOG_GUEST_ERROR,
 210                       "arm_sysctl_read: Bad register offset 0x%x\n",
 211                       (int)offset);
 212         return 0;
 213     }
 214 }
 215
 216 /* SYS_CFGCTRL functions */
 217 #define SYS_CFG_OSC 1
 218 #define SYS_CFG_VOLT 2
 219 #define SYS_CFG_AMP 3
 220 #define SYS_CFG_TEMP 4
 221 #define SYS_CFG_RESET 5
 222 #define SYS_CFG_SCC 6
 223 #define SYS_CFG_MUXFPGA 7
 224 #define SYS_CFG_SHUTDOWN 8
 225 #define SYS_CFG_REBOOT 9
 226 #define SYS_CFG_DVIMODE 11
 227 #define SYS_CFG_POWER 12
 228 #define SYS_CFG_ENERGY 13
 229
 230 /* SYS_CFGCTRL site field values */
 231 #define SYS_CFG_SITE_MB 0
 232 #define SYS_CFG_SITE_DB1 1
 233 #define SYS_CFG_SITE_DB2 2
 234
 235 /**
 236  * vexpress_cfgctrl_read:
 237  * @s: arm_sysctl_state pointer
 238  * @dcc, @function, @site, @position, @device: split out values from
 239  * SYS_CFGCTRL register
 240  * @val: pointer to where to put the read data on success
 241  *
 242  * Handle a VExpress SYS_CFGCTRL register read. On success, return true and
 243  * write the read value to *val. On failure, return false (and val may
 244  * or may not be written to).
 245  */
 246 static bool vexpress_cfgctrl_read(arm_sysctl_state *s, unsigned int dcc,
 247                                   unsigned int function, unsigned int site,
 248                                   unsigned int position, unsigned int device,
 249                                   uint32_t *val)
 250 {
 251     /* We don't support anything other than DCC 0, board stack position 0
 252      * or sites other than motherboard/daughterboard:
 253      */
 254     if (dcc != 0 || position != 0 ||
 255         (site != SYS_CFG_SITE_MB && site != SYS_CFG_SITE_DB1)) {
 256         goto cfgctrl_unimp;
 257     }
 258
 259     switch (function) {
 260     case SYS_CFG_VOLT:
 261         if (site == SYS_CFG_SITE_DB1 && device < s->db_num_vsensors) {
 262             *val = s->db_voltage[device];
 263             return true;
 264         }
 265         if (site == SYS_CFG_SITE_MB && device == 0) {
 266             /* There is only one motherboard voltage sensor:
 267              * VIO : 3.3V : bus voltage between mother and daughterboard
 268              */
 269             *val = 3300000;
 270             return true;
 271         }
 272         break;
 273     case SYS_CFG_OSC:
 274         if (site == SYS_CFG_SITE_MB && device < sizeof(s->mb_clock)) {
 275             /* motherboard clock */
 276             *val = s->mb_clock[device];
 277             return true;
 278         }
 279         if (site == SYS_CFG_SITE_DB1 && device < s->db_num_clocks) {
 280             /* daughterboard clock */
 281             *val = s->db_clock[device];
 282             return true;
 283         }
 284         break;
 285     default:
 286         break;
 287     }
 288
 289 cfgctrl_unimp:
 290     qemu_log_mask(LOG_UNIMP,
 291                   "arm_sysctl: Unimplemented SYS_CFGCTRL read of function "
 292                   "0x%x DCC 0x%x site 0x%x position 0x%x device 0x%x\n",
 293                   function, dcc, site, position, device);
 294     return false;
 295 }
 296
 297 /**
 298  * vexpress_cfgctrl_write:
 299  * @s: arm_sysctl_state pointer
 300  * @dcc, @function, @site, @position, @device: split out values from
 301  * SYS_CFGCTRL register
 302  * @val: data to write
 303  *
 304  * Handle a VExpress SYS_CFGCTRL register write. On success, return true.
 305  * On failure, return false.
 306  */
 307 static bool vexpress_cfgctrl_write(arm_sysctl_state *s, unsigned int dcc,
 308                                    unsigned int function, unsigned int site,
 309                                    unsigned int position, unsigned int device,
 310                                    uint32_t val)
 311 {
 312     /* We don't support anything other than DCC 0, board stack position 0
 313      * or sites other than motherboard/daughterboard:
 314      */
 315     if (dcc != 0 || position != 0 ||
 316         (site != SYS_CFG_SITE_MB && site != SYS_CFG_SITE_DB1)) {
 317         goto cfgctrl_unimp;
 318     }
 319
 320     switch (function) {
 321     case SYS_CFG_OSC:
 322         if (site == SYS_CFG_SITE_MB && device < sizeof(s->mb_clock)) {
 323             /* motherboard clock */
 324             s->mb_clock[device] = val;
 325             return true;
 326         }
 327         if (site == SYS_CFG_SITE_DB1 && device < s->db_num_clocks) {
 328             /* daughterboard clock */
 329             s->db_clock[device] = val;
 330             return true;
 331         }
 332         break;
 333     case SYS_CFG_MUXFPGA:
 334         if (site == SYS_CFG_SITE_MB && device == 0) {
 335             /* Select whether video output comes from motherboard
 336              * or daughterboard: log and ignore as QEMU doesn't
 337              * support this.
 338              */
 339             qemu_log_mask(LOG_UNIMP, "arm_sysctl: selection of video output "
 340                           "not supported, ignoring\n");
 341             return true;
 342         }
 343         break;
 344     case SYS_CFG_SHUTDOWN:
 345         if (site == SYS_CFG_SITE_MB && device == 0) {
 346             qemu_system_shutdown_request();
 347             return true;
 348         }
 349         break;
 350     case SYS_CFG_REBOOT:
 351         if (site == SYS_CFG_SITE_MB && device == 0) {
 352             qemu_system_reset_request();
 353             return true;
 354         }
 355         break;
 356     case SYS_CFG_DVIMODE:
 357         if (site == SYS_CFG_SITE_MB && device == 0) {
 358             /* Selecting DVI mode is meaningless for QEMU: we will
 359              * always display the output correctly according to the
 360              * pixel height/width programmed into the CLCD controller.
 361              */
 362             return true;
 363         }
 364     default:
 365         break;
 366     }
 367
 368 cfgctrl_unimp:
 369     qemu_log_mask(LOG_UNIMP,
 370                   "arm_sysctl: Unimplemented SYS_CFGCTRL write of function "
 371                   "0x%x DCC 0x%x site 0x%x position 0x%x device 0x%x\n",
 372                   function, dcc, site, position, device);
 373     return false;
 374 }
 375
 376 static void arm_sysctl_write(void *opaque, hwaddr offset,
 377                              uint64_t val, unsigned size)
 378 {
 379     arm_sysctl_state *s = (arm_sysctl_state *)opaque;
 380
 381     switch (offset) {
 382     case 0x08: /* LED */
 383         s->leds = val;
 384         break;
 385     case 0x0c: /* OSC0 */
 386     case 0x10: /* OSC1 */
 387     case 0x14: /* OSC2 */
 388     case 0x18: /* OSC3 */
 389     case 0x1c: /* OSC4 */
 390         /* ??? */
 391         break;
 392     case 0x20: /* LOCK */
 393         if (val == LOCK_VALUE)
 394             s->lockval = val;
 395         else
 396             s->lockval = val & 0x7fff;
 397         break;
 398     case 0x28: /* CFGDATA1 */
 399         /* ??? Need to implement this.  */
 400         s->cfgdata1 = val;
 401         break;
 402     case 0x2c: /* CFGDATA2 */
 403         /* ??? Need to implement this.  */
 404         s->cfgdata2 = val;
 405         break;
 406     case 0x30: /* FLAGSSET */
 407         s->flags |= val;
 408         break;
 409     case 0x34: /* FLAGSCLR */
 410         s->flags &= ~val;
 411         break;
 412     case 0x38: /* NVFLAGSSET */
 413         s->nvflags |= val;
 414         break;
 415     case 0x3c: /* NVFLAGSCLR */
 416         s->nvflags &= ~val;
 417         break;
 418     case 0x40: /* RESETCTL */
 419         switch (board_id(s)) {
 420         case BOARD_ID_PB926:
 421             if (s->lockval == LOCK_VALUE) {
 422                 s->resetlevel = val;
 423                 if (val & 0x100) {
 424                     qemu_system_reset_request();
 425                 }
 426             }
 427             break;
 428         case BOARD_ID_PBX:
 429         case BOARD_ID_PBA8:
 430             if (s->lockval == LOCK_VALUE) {
 431                 s->resetlevel = val;
 432                 if (val & 0x04) {
 433                     qemu_system_reset_request();
 434                 }
 435             }
 436             break;
 437         case BOARD_ID_VEXPRESS:
 438         case BOARD_ID_EB:
 439         default:
 440             /* reserved: RAZ/WI */
 441             break;
 442         }
 443         break;
 444     case 0x44: /* PCICTL */
 445         /* nothing to do.  */
 446         break;
 447     case 0x4c: /* FLASH */
 448         break;
 449     case 0x50: /* CLCD */
 450         switch (board_id(s)) {
 451         case BOARD_ID_PB926:
 452             /* On 926 bits 13:8 are R/O, bits 1:0 control
 453              * the mux that defines how to interpret the PL110
 454              * graphics format, and other bits are r/w but we
 455              * don't implement them to do anything.
 456              */
 457             s->sys_clcd &= 0x3f00;
 458             s->sys_clcd |= val & ~0x3f00;
 459             qemu_set_irq(s->pl110_mux_ctrl, val & 3);
 460             break;
 461         case BOARD_ID_EB:
 462             /* The EB is the same except that there is no mux since
 463              * the EB has a PL111.
 464              */
 465             s->sys_clcd &= 0x3f00;
 466             s->sys_clcd |= val & ~0x3f00;
 467             break;
 468         case BOARD_ID_PBA8:
 469         case BOARD_ID_PBX:
 470             /* On PBA8 and PBX bit 7 is r/w and all other bits
 471              * are either r/o or RAZ/WI.
 472              */
 473             s->sys_clcd &= (1 << 7);
 474             s->sys_clcd |= val & ~(1 << 7);
 475             break;
 476         case BOARD_ID_VEXPRESS:
 477         default:
 478             /* On VExpress this register is unimplemented and will RAZ/WI */
 479             break;
 480         }
 481         break;
 482     case 0x54: /* CLCDSER */
 483     case 0x64: /* DMAPSR0 */
 484     case 0x68: /* DMAPSR1 */
 485     case 0x6c: /* DMAPSR2 */
 486     case 0x70: /* IOSEL */
 487     case 0x74: /* PLDCTL */
 488     case 0x80: /* BUSID */
 489     case 0x84: /* PROCID0 */
 490     case 0x88: /* PROCID1 */
 491     case 0x8c: /* OSCRESET0 */
 492     case 0x90: /* OSCRESET1 */
 493     case 0x94: /* OSCRESET2 */
 494     case 0x98: /* OSCRESET3 */
 495     case 0x9c: /* OSCRESET4 */
 496         break;
 497     case 0xa0: /* SYS_CFGDATA */
 498         if (board_id(s) != BOARD_ID_VEXPRESS) {
 499             goto bad_reg;
 500         }
 501         s->sys_cfgdata = val;
 502         return;
 503     case 0xa4: /* SYS_CFGCTRL */
 504         if (board_id(s) != BOARD_ID_VEXPRESS) {
 505             goto bad_reg;
 506         }
 507         /* Undefined bits [19:18] are RAZ/WI, and writing to
 508          * the start bit just triggers the action; it always reads
 509          * as zero.
 510          */
 511         s->sys_cfgctrl = val & ~((3 << 18) | (1 << 31));
 512         if (val & (1 << 31)) {
 513             /* Start bit set -- actually do something */
 514             unsigned int dcc = extract32(s->sys_cfgctrl, 26, 4);
 515             unsigned int function = extract32(s->sys_cfgctrl, 20, 6);
 516             unsigned int site = extract32(s->sys_cfgctrl, 16, 2);
 517             unsigned int position = extract32(s->sys_cfgctrl, 12, 4);
 518             unsigned int device = extract32(s->sys_cfgctrl, 0, 12);
 519             s->sys_cfgstat = 1;            /* complete */
 520             if (s->sys_cfgctrl & (1 << 30)) {
 521                 if (!vexpress_cfgctrl_write(s, dcc, function, site, position,
 522                                             device, s->sys_cfgdata)) {
 523                     s->sys_cfgstat |= 2;        /* error */
 524                 }
 525             } else {
 526                 uint32_t val;
 527                 if (!vexpress_cfgctrl_read(s, dcc, function, site, position,
 528                                            device, &val)) {
 529                     s->sys_cfgstat |= 2;        /* error */
 530                 } else {
 531                     s->sys_cfgdata = val;
 532                 }
 533             }
 534         }
 535         s->sys_cfgctrl &= ~(1 << 31);
 536         return;
 537     case 0xa8: /* SYS_CFGSTAT */
 538         if (board_id(s) != BOARD_ID_VEXPRESS) {
 539             goto bad_reg;
 540         }
 541         s->sys_cfgstat = val & 3;
 542         return;
 543     default:
 544     bad_reg:
 545         qemu_log_mask(LOG_GUEST_ERROR,
 546                       "arm_sysctl_write: Bad register offset 0x%x\n",
 547                       (int)offset);
 548         return;
 549     }
 550 }
 551
 552 static const MemoryRegionOps arm_sysctl_ops = {
 553     .read = arm_sysctl_read,
 554     .write = arm_sysctl_write,
 555     .endianness = DEVICE_NATIVE_ENDIAN,
 556 };
 557
 558 static void arm_sysctl_gpio_set(void *opaque, int line, int level)
 559 {
 560     arm_sysctl_state *s = (arm_sysctl_state *)opaque;
 561     switch (line) {
 562     case ARM_SYSCTL_GPIO_MMC_WPROT:
 563     {
 564         /* For PB926 and EB write-protect is bit 2 of SYS_MCI;
 565          * for all later boards it is bit 1.
 566          */
 567         int bit = 2;
 568         if ((board_id(s) == BOARD_ID_PB926) || (board_id(s) == BOARD_ID_EB)) {
 569             bit = 4;
 570         }
 571         s->sys_mci &= ~bit;
 572         if (level) {
 573             s->sys_mci |= bit;
 574         }
 575         break;
 576     }
 577     case ARM_SYSCTL_GPIO_MMC_CARDIN:
 578         s->sys_mci &= ~1;
 579         if (level) {
 580             s->sys_mci |= 1;
 581         }
 582         break;
 583     }
 584 }
 585
 586 static void arm_sysctl_init(Object *obj)
 587 {
 588     DeviceState *dev = DEVICE(obj);
 589     SysBusDevice *sd = SYS_BUS_DEVICE(obj);
 590     arm_sysctl_state *s = FROM_SYSBUS(arm_sysctl_state, sd);
 591
 592     memory_region_init_io(&s->iomem, OBJECT(dev), &arm_sysctl_ops, s,
 593                           "arm-sysctl", 0x1000);
 594     sysbus_init_mmio(sd, &s->iomem);
 595     qdev_init_gpio_in(dev, arm_sysctl_gpio_set, 2);
 596     qdev_init_gpio_out(dev, &s->pl110_mux_ctrl, 1);
 597 }
 598
 599 static void arm_sysctl_realize(DeviceState *d, Error **errp)
 600 {
 601     arm_sysctl_state *s = FROM_SYSBUS(arm_sysctl_state, SYS_BUS_DEVICE(d));
 602     s->db_clock = g_new0(uint32_t, s->db_num_clocks);
 603 }
 604
 605 static void arm_sysctl_finalize(Object *obj)
 606 {
 607     SysBusDevice *dev = SYS_BUS_DEVICE(obj);
 608     arm_sysctl_state *s = FROM_SYSBUS(arm_sysctl_state, dev);
 609     g_free(s->db_voltage);
 610     g_free(s->db_clock);
 611     g_free(s->db_clock_reset);
 612 }
 613
 614 static Property arm_sysctl_properties[] = {
 615     DEFINE_PROP_UINT32("sys_id", arm_sysctl_state, sys_id, 0),
 616     DEFINE_PROP_UINT32("proc_id", arm_sysctl_state, proc_id, 0),
 617     /* Daughterboard power supply voltages (as reported via SYS_CFG) */
 618     DEFINE_PROP_ARRAY("db-voltage", arm_sysctl_state, db_num_vsensors,
 619                       db_voltage, qdev_prop_uint32, uint32_t),
 620     /* Daughterboard clock reset values (as reported via SYS_CFG) */
 621     DEFINE_PROP_ARRAY("db-clock", arm_sysctl_state, db_num_clocks,
 622                       db_clock_reset, qdev_prop_uint32, uint32_t),
 623     DEFINE_PROP_END_OF_LIST(),
 624 };
 625
 626 static void arm_sysctl_class_init(ObjectClass *klass, void *data)
 627 {
 628     DeviceClass *dc = DEVICE_CLASS(klass);
 629
 630     dc->realize = arm_sysctl_realize;
 631     dc->reset = arm_sysctl_reset;
 632     dc->vmsd = &vmstate_arm_sysctl;
 633     dc->props = arm_sysctl_properties;
 634 }
 635
 636 static const TypeInfo arm_sysctl_info = {
 637     .name          = "realview_sysctl",
 638     .parent        = TYPE_SYS_BUS_DEVICE,
 639     .instance_size = sizeof(arm_sysctl_state),
 640     .instance_init = arm_sysctl_init,
 641     .instance_finalize = arm_sysctl_finalize,
 642     .class_init    = arm_sysctl_class_init,
 643 };
 644
 645 static void arm_sysctl_register_types(void)
 646 {
 647     type_register_static(&arm_sysctl_info);
 648 }
 649
 650 type_init(arm_sysctl_register_types)