hw/sh7750.c

   1 /*
   2  * SH7750 device
   3  *
   4  * Copyright (c) 2007 Magnus Damm
   5  * Copyright (c) 2005 Samuel Tardieu
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a copy
   8  * of this software and associated documentation files (the "Software"), to deal
   9  * in the Software without restriction, including without limitation the rights
  10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  11  * copies of the Software, and to permit persons to whom the Software is
  12  * furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included in
  15  * all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  23  * THE SOFTWARE.
  24  */
  25 #include <stdio.h>
  26 #include "hw.h"
  27 #include "sh.h"
  28 #include "sysemu.h"
  29 #include "sh7750_regs.h"
  30 #include "sh7750_regnames.h"
  31 #include "sh_intc.h"
  32 #include "cpu.h"
  33 #include "exec-memory.h"
  34
  35 #define NB_DEVICES 4
  36
  37 typedef struct SH7750State {
  38     MemoryRegion iomem;
  39     MemoryRegion iomem_1f0;
  40     MemoryRegion iomem_ff0;
  41     MemoryRegion iomem_1f8;
  42     MemoryRegion iomem_ff8;
  43     MemoryRegion iomem_1fc;
  44     MemoryRegion iomem_ffc;
  45     MemoryRegion mmct_iomem;
  46     /* CPU */
  47     CPUSH4State *cpu;
  48     /* Peripheral frequency in Hz */
  49     uint32_t periph_freq;
  50     /* SDRAM controller */
  51     uint32_t bcr1;
  52     uint16_t bcr2;
  53     uint16_t bcr3;
  54     uint32_t bcr4;
  55     uint16_t rfcr;
  56     /* PCMCIA controller */
  57     uint16_t pcr;
  58     /* IO ports */
  59     uint16_t gpioic;
  60     uint32_t pctra;
  61     uint32_t pctrb;
  62     uint16_t portdira;          /* Cached */
  63     uint16_t portpullupa;       /* Cached */
  64     uint16_t portdirb;          /* Cached */
  65     uint16_t portpullupb;       /* Cached */
  66     uint16_t pdtra;
  67     uint16_t pdtrb;
  68     uint16_t periph_pdtra;      /* Imposed by the peripherals */
  69     uint16_t periph_portdira;   /* Direction seen from the peripherals */
  70     uint16_t periph_pdtrb;      /* Imposed by the peripherals */
  71     uint16_t periph_portdirb;   /* Direction seen from the peripherals */
  72     sh7750_io_device *devices[NB_DEVICES];      /* External peripherals */
  73
  74     /* Cache */
  75     uint32_t ccr;
  76
  77     struct intc_desc intc;
  78 } SH7750State;
  79
  80 static inline int has_bcr3_and_bcr4(SH7750State * s)
  81 {
  82         return (s->cpu->features & SH_FEATURE_BCR3_AND_BCR4);
  83 }
  84 /**********************************************************************
  85  I/O ports
  86 **********************************************************************/
  87
  88 int sh7750_register_io_device(SH7750State * s, sh7750_io_device * device)
  89 {
  90     int i;
  91
  92     for (i = 0; i < NB_DEVICES; i++) {
  93         if (s->devices[i] == NULL) {
  94             s->devices[i] = device;
  95             return 0;
  96         }
  97     }
  98     return -1;
  99 }
 100
 101 static uint16_t portdir(uint32_t v)
 102 {
 103 #define EVENPORTMASK(n) ((v & (1<<((n)<<1))) >> (n))
 104     return
 105         EVENPORTMASK(15) | EVENPORTMASK(14) | EVENPORTMASK(13) |
 106         EVENPORTMASK(12) | EVENPORTMASK(11) | EVENPORTMASK(10) |
 107         EVENPORTMASK(9) | EVENPORTMASK(8) | EVENPORTMASK(7) |
 108         EVENPORTMASK(6) | EVENPORTMASK(5) | EVENPORTMASK(4) |
 109         EVENPORTMASK(3) | EVENPORTMASK(2) | EVENPORTMASK(1) |
 110         EVENPORTMASK(0);
 111 }
 112
 113 static uint16_t portpullup(uint32_t v)
 114 {
 115 #define ODDPORTMASK(n) ((v & (1<<(((n)<<1)+1))) >> (n))
 116     return
 117         ODDPORTMASK(15) | ODDPORTMASK(14) | ODDPORTMASK(13) |
 118         ODDPORTMASK(12) | ODDPORTMASK(11) | ODDPORTMASK(10) |
 119         ODDPORTMASK(9) | ODDPORTMASK(8) | ODDPORTMASK(7) | ODDPORTMASK(6) |
 120         ODDPORTMASK(5) | ODDPORTMASK(4) | ODDPORTMASK(3) | ODDPORTMASK(2) |
 121         ODDPORTMASK(1) | ODDPORTMASK(0);
 122 }
 123
 124 static uint16_t porta_lines(SH7750State * s)
 125 {
 126     return (s->portdira & s->pdtra) |   /* CPU */
 127         (s->periph_portdira & s->periph_pdtra) |        /* Peripherals */
 128         (~(s->portdira | s->periph_portdira) & s->portpullupa); /* Pullups */
 129 }
 130
 131 static uint16_t portb_lines(SH7750State * s)
 132 {
 133     return (s->portdirb & s->pdtrb) |   /* CPU */
 134         (s->periph_portdirb & s->periph_pdtrb) |        /* Peripherals */
 135         (~(s->portdirb | s->periph_portdirb) & s->portpullupb); /* Pullups */
 136 }
 137
 138 static void gen_port_interrupts(SH7750State * s)
 139 {
 140     /* XXXXX interrupts not generated */
 141 }
 142
 143 static void porta_changed(SH7750State * s, uint16_t prev)
 144 {
 145     uint16_t currenta, changes;
 146     int i, r = 0;
 147
 148 #if 0
 149     fprintf(stderr, "porta changed from 0x%04x to 0x%04x\n",
 150             prev, porta_lines(s));
 151     fprintf(stderr, "pdtra=0x%04x, pctra=0x%08x\n", s->pdtra, s->pctra);
 152 #endif
 153     currenta = porta_lines(s);
 154     if (currenta == prev)
 155         return;
 156     changes = currenta ^ prev;
 157
 158     for (i = 0; i < NB_DEVICES; i++) {
 159         if (s->devices[i] && (s->devices[i]->portamask_trigger & changes)) {
 160             r |= s->devices[i]->port_change_cb(currenta, portb_lines(s),
 161                                                &s->periph_pdtra,
 162                                                &s->periph_portdira,
 163                                                &s->periph_pdtrb,
 164                                                &s->periph_portdirb);
 165         }
 166     }
 167
 168     if (r)
 169         gen_port_interrupts(s);
 170 }
 171
 172 static void portb_changed(SH7750State * s, uint16_t prev)
 173 {
 174     uint16_t currentb, changes;
 175     int i, r = 0;
 176
 177     currentb = portb_lines(s);
 178     if (currentb == prev)
 179         return;
 180     changes = currentb ^ prev;
 181
 182     for (i = 0; i < NB_DEVICES; i++) {
 183         if (s->devices[i] && (s->devices[i]->portbmask_trigger & changes)) {
 184             r |= s->devices[i]->port_change_cb(portb_lines(s), currentb,
 185                                                &s->periph_pdtra,
 186                                                &s->periph_portdira,
 187                                                &s->periph_pdtrb,
 188                                                &s->periph_portdirb);
 189         }
 190     }
 191
 192     if (r)
 193         gen_port_interrupts(s);
 194 }
 195
 196 /**********************************************************************
 197  Memory
 198 **********************************************************************/
 199
 200 static void error_access(const char *kind, hwaddr addr)
 201 {
 202     fprintf(stderr, "%s to %s (0x" TARGET_FMT_plx ") not supported\n",
 203             kind, regname(addr), addr);
 204 }
 205
 206 static void ignore_access(const char *kind, hwaddr addr)
 207 {
 208     fprintf(stderr, "%s to %s (0x" TARGET_FMT_plx ") ignored\n",
 209             kind, regname(addr), addr);
 210 }
 211
 212 static uint32_t sh7750_mem_readb(void *opaque, hwaddr addr)
 213 {
 214     switch (addr) {
 215     default:
 216         error_access("byte read", addr);
 217         abort();
 218     }
 219 }
 220
 221 static uint32_t sh7750_mem_readw(void *opaque, hwaddr addr)
 222 {
 223     SH7750State *s = opaque;
 224
 225     switch (addr) {
 226     case SH7750_BCR2_A7:
 227         return s->bcr2;
 228     case SH7750_BCR3_A7:
 229         if(!has_bcr3_and_bcr4(s))
 230             error_access("word read", addr);
 231         return s->bcr3;
 232     case SH7750_FRQCR_A7:
 233         return 0;
 234     case SH7750_PCR_A7:
 235         return s->pcr;
 236     case SH7750_RFCR_A7:
 237         fprintf(stderr,
 238                 "Read access to refresh count register, incrementing\n");
 239         return s->rfcr++;
 240     case SH7750_PDTRA_A7:
 241         return porta_lines(s);
 242     case SH7750_PDTRB_A7:
 243         return portb_lines(s);
 244     case SH7750_RTCOR_A7:
 245     case SH7750_RTCNT_A7:
 246     case SH7750_RTCSR_A7:
 247         ignore_access("word read", addr);
 248         return 0;
 249     default:
 250         error_access("word read", addr);
 251         abort();
 252     }
 253 }
 254
 255 static uint32_t sh7750_mem_readl(void *opaque, hwaddr addr)
 256 {
 257     SH7750State *s = opaque;
 258
 259     switch (addr) {
 260     case SH7750_BCR1_A7:
 261         return s->bcr1;
 262     case SH7750_BCR4_A7:
 263         if(!has_bcr3_and_bcr4(s))
 264             error_access("long read", addr);
 265         return s->bcr4;
 266     case SH7750_WCR1_A7:
 267     case SH7750_WCR2_A7:
 268     case SH7750_WCR3_A7:
 269     case SH7750_MCR_A7:
 270         ignore_access("long read", addr);
 271         return 0;
 272     case SH7750_MMUCR_A7:
 273         return s->cpu->mmucr;
 274     case SH7750_PTEH_A7:
 275         return s->cpu->pteh;
 276     case SH7750_PTEL_A7:
 277         return s->cpu->ptel;
 278     case SH7750_TTB_A7:
 279         return s->cpu->ttb;
 280     case SH7750_TEA_A7:
 281         return s->cpu->tea;
 282     case SH7750_TRA_A7:
 283         return s->cpu->tra;
 284     case SH7750_EXPEVT_A7:
 285         return s->cpu->expevt;
 286     case SH7750_INTEVT_A7:
 287         return s->cpu->intevt;
 288     case SH7750_CCR_A7:
 289         return s->ccr;
 290     case 0x1f000030:            /* Processor version */
 291         return s->cpu->pvr;
 292     case 0x1f000040:            /* Cache version */
 293         return s->cpu->cvr;
 294     case 0x1f000044:            /* Processor revision */
 295         return s->cpu->prr;
 296     default:
 297         error_access("long read", addr);
 298         abort();
 299     }
 300 }
 301
 302 #define is_in_sdrmx(a, x) (a >= SH7750_SDMR ## x ## _A7 \
 303                         && a <= (SH7750_SDMR ## x ## _A7 + SH7750_SDMR ## x ## _REGNB))
 304 static void sh7750_mem_writeb(void *opaque, hwaddr addr,
 305                               uint32_t mem_value)
 306 {
 307
 308     if (is_in_sdrmx(addr, 2) || is_in_sdrmx(addr, 3)) {
 309         ignore_access("byte write", addr);
 310         return;
 311     }
 312
 313     error_access("byte write", addr);
 314     abort();
 315 }
 316
 317 static void sh7750_mem_writew(void *opaque, hwaddr addr,
 318                               uint32_t mem_value)
 319 {
 320     SH7750State *s = opaque;
 321     uint16_t temp;
 322
 323     switch (addr) {
 324         /* SDRAM controller */
 325     case SH7750_BCR2_A7:
 326         s->bcr2 = mem_value;
 327         return;
 328     case SH7750_BCR3_A7:
 329         if(!has_bcr3_and_bcr4(s))
 330             error_access("word write", addr);
 331         s->bcr3 = mem_value;
 332         return;
 333     case SH7750_PCR_A7:
 334         s->pcr = mem_value;
 335         return;
 336     case SH7750_RTCNT_A7:
 337     case SH7750_RTCOR_A7:
 338     case SH7750_RTCSR_A7:
 339         ignore_access("word write", addr);
 340         return;
 341         /* IO ports */
 342     case SH7750_PDTRA_A7:
 343         temp = porta_lines(s);
 344         s->pdtra = mem_value;
 345         porta_changed(s, temp);
 346         return;
 347     case SH7750_PDTRB_A7:
 348         temp = portb_lines(s);
 349         s->pdtrb = mem_value;
 350         portb_changed(s, temp);
 351         return;
 352     case SH7750_RFCR_A7:
 353         fprintf(stderr, "Write access to refresh count register\n");
 354         s->rfcr = mem_value;
 355         return;
 356     case SH7750_GPIOIC_A7:
 357         s->gpioic = mem_value;
 358         if (mem_value != 0) {
 359             fprintf(stderr, "I/O interrupts not implemented\n");
 360             abort();
 361         }
 362         return;
 363     default:
 364         error_access("word write", addr);
 365         abort();
 366     }
 367 }
 368
 369 static void sh7750_mem_writel(void *opaque, hwaddr addr,
 370                               uint32_t mem_value)
 371 {
 372     SH7750State *s = opaque;
 373     uint16_t temp;
 374
 375     switch (addr) {
 376         /* SDRAM controller */
 377     case SH7750_BCR1_A7:
 378         s->bcr1 = mem_value;
 379         return;
 380     case SH7750_BCR4_A7:
 381         if(!has_bcr3_and_bcr4(s))
 382             error_access("long write", addr);
 383         s->bcr4 = mem_value;
 384         return;
 385     case SH7750_WCR1_A7:
 386     case SH7750_WCR2_A7:
 387     case SH7750_WCR3_A7:
 388     case SH7750_MCR_A7:
 389         ignore_access("long write", addr);
 390         return;
 391         /* IO ports */
 392     case SH7750_PCTRA_A7:
 393         temp = porta_lines(s);
 394         s->pctra = mem_value;
 395         s->portdira = portdir(mem_value);
 396         s->portpullupa = portpullup(mem_value);
 397         porta_changed(s, temp);
 398         return;
 399     case SH7750_PCTRB_A7:
 400         temp = portb_lines(s);
 401         s->pctrb = mem_value;
 402         s->portdirb = portdir(mem_value);
 403         s->portpullupb = portpullup(mem_value);
 404         portb_changed(s, temp);
 405         return;
 406     case SH7750_MMUCR_A7:
 407         if (mem_value & MMUCR_TI) {
 408             cpu_sh4_invalidate_tlb(s->cpu);
 409         }
 410         s->cpu->mmucr = mem_value & ~MMUCR_TI;
 411         return;
 412     case SH7750_PTEH_A7:
 413         /* If asid changes, clear all registered tlb entries. */
 414         if ((s->cpu->pteh & 0xff) != (mem_value & 0xff))
 415             tlb_flush(s->cpu, 1);
 416         s->cpu->pteh = mem_value;
 417         return;
 418     case SH7750_PTEL_A7:
 419         s->cpu->ptel = mem_value;
 420         return;
 421     case SH7750_PTEA_A7:
 422         s->cpu->ptea = mem_value & 0x0000000f;
 423         return;
 424     case SH7750_TTB_A7:
 425         s->cpu->ttb = mem_value;
 426         return;
 427     case SH7750_TEA_A7:
 428         s->cpu->tea = mem_value;
 429         return;
 430     case SH7750_TRA_A7:
 431         s->cpu->tra = mem_value & 0x000007ff;
 432         return;
 433     case SH7750_EXPEVT_A7:
 434         s->cpu->expevt = mem_value & 0x000007ff;
 435         return;
 436     case SH7750_INTEVT_A7:
 437         s->cpu->intevt = mem_value & 0x000007ff;
 438         return;
 439     case SH7750_CCR_A7:
 440         s->ccr = mem_value;
 441         return;
 442     default:
 443         error_access("long write", addr);
 444         abort();
 445     }
 446 }
 447
 448 static const MemoryRegionOps sh7750_mem_ops = {
 449     .old_mmio = {
 450         .read = {sh7750_mem_readb,
 451                  sh7750_mem_readw,
 452                  sh7750_mem_readl },
 453         .write = {sh7750_mem_writeb,
 454                   sh7750_mem_writew,
 455                   sh7750_mem_writel },
 456     },
 457     .endianness = DEVICE_NATIVE_ENDIAN,
 458 };
 459
 460 /* sh775x interrupt controller tables for sh_intc.c
 461  * stolen from linux/arch/sh/kernel/cpu/sh4/setup-sh7750.c
 462  */
 463
 464 enum {
 465         UNUSED = 0,
 466
 467         /* interrupt sources */
 468         IRL_0, IRL_1, IRL_2, IRL_3, IRL_4, IRL_5, IRL_6, IRL_7,
 469         IRL_8, IRL_9, IRL_A, IRL_B, IRL_C, IRL_D, IRL_E,
 470         IRL0, IRL1, IRL2, IRL3,
 471         HUDI, GPIOI,
 472         DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2, DMAC_DMTE3,
 473         DMAC_DMTE4, DMAC_DMTE5, DMAC_DMTE6, DMAC_DMTE7,
 474         DMAC_DMAE,
 475         PCIC0_PCISERR, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
 476         PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3,
 477         TMU3, TMU4, TMU0, TMU1, TMU2_TUNI, TMU2_TICPI,
 478         RTC_ATI, RTC_PRI, RTC_CUI,
 479         SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI,
 480         SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI,
 481         WDT,
 482         REF_RCMI, REF_ROVI,
 483
 484         /* interrupt groups */
 485         DMAC, PCIC1, TMU2, RTC, SCI1, SCIF, REF,
 486         /* irl bundle */
 487         IRL,
 488
 489         NR_SOURCES,
 490 };
 491
 492 static struct intc_vect vectors[] = {
 493         INTC_VECT(HUDI, 0x600), INTC_VECT(GPIOI, 0x620),
 494         INTC_VECT(TMU0, 0x400), INTC_VECT(TMU1, 0x420),
 495         INTC_VECT(TMU2_TUNI, 0x440), INTC_VECT(TMU2_TICPI, 0x460),
 496         INTC_VECT(RTC_ATI, 0x480), INTC_VECT(RTC_PRI, 0x4a0),
 497         INTC_VECT(RTC_CUI, 0x4c0),
 498         INTC_VECT(SCI1_ERI, 0x4e0), INTC_VECT(SCI1_RXI, 0x500),
 499         INTC_VECT(SCI1_TXI, 0x520), INTC_VECT(SCI1_TEI, 0x540),
 500         INTC_VECT(SCIF_ERI, 0x700), INTC_VECT(SCIF_RXI, 0x720),
 501         INTC_VECT(SCIF_BRI, 0x740), INTC_VECT(SCIF_TXI, 0x760),
 502         INTC_VECT(WDT, 0x560),
 503         INTC_VECT(REF_RCMI, 0x580), INTC_VECT(REF_ROVI, 0x5a0),
 504 };
 505
 506 static struct intc_group groups[] = {
 507         INTC_GROUP(TMU2, TMU2_TUNI, TMU2_TICPI),
 508         INTC_GROUP(RTC, RTC_ATI, RTC_PRI, RTC_CUI),
 509         INTC_GROUP(SCI1, SCI1_ERI, SCI1_RXI, SCI1_TXI, SCI1_TEI),
 510         INTC_GROUP(SCIF, SCIF_ERI, SCIF_RXI, SCIF_BRI, SCIF_TXI),
 511         INTC_GROUP(REF, REF_RCMI, REF_ROVI),
 512 };
 513
 514 static struct intc_prio_reg prio_registers[] = {
 515         { 0xffd00004, 0, 16, 4, /* IPRA */ { TMU0, TMU1, TMU2, RTC } },
 516         { 0xffd00008, 0, 16, 4, /* IPRB */ { WDT, REF, SCI1, 0 } },
 517         { 0xffd0000c, 0, 16, 4, /* IPRC */ { GPIOI, DMAC, SCIF, HUDI } },
 518         { 0xffd00010, 0, 16, 4, /* IPRD */ { IRL0, IRL1, IRL2, IRL3 } },
 519         { 0xfe080000, 0, 32, 4, /* INTPRI00 */ { 0, 0, 0, 0,
 520                                                  TMU4, TMU3,
 521                                                  PCIC1, PCIC0_PCISERR } },
 522 };
 523
 524 /* SH7750, SH7750S, SH7751 and SH7091 all have 4-channel DMA controllers */
 525
 526 static struct intc_vect vectors_dma4[] = {
 527         INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660),
 528         INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0),
 529         INTC_VECT(DMAC_DMAE, 0x6c0),
 530 };
 531
 532 static struct intc_group groups_dma4[] = {
 533         INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2,
 534                    DMAC_DMTE3, DMAC_DMAE),
 535 };
 536
 537 /* SH7750R and SH7751R both have 8-channel DMA controllers */
 538
 539 static struct intc_vect vectors_dma8[] = {
 540         INTC_VECT(DMAC_DMTE0, 0x640), INTC_VECT(DMAC_DMTE1, 0x660),
 541         INTC_VECT(DMAC_DMTE2, 0x680), INTC_VECT(DMAC_DMTE3, 0x6a0),
 542         INTC_VECT(DMAC_DMTE4, 0x780), INTC_VECT(DMAC_DMTE5, 0x7a0),
 543         INTC_VECT(DMAC_DMTE6, 0x7c0), INTC_VECT(DMAC_DMTE7, 0x7e0),
 544         INTC_VECT(DMAC_DMAE, 0x6c0),
 545 };
 546
 547 static struct intc_group groups_dma8[] = {
 548         INTC_GROUP(DMAC, DMAC_DMTE0, DMAC_DMTE1, DMAC_DMTE2,
 549                    DMAC_DMTE3, DMAC_DMTE4, DMAC_DMTE5,
 550                    DMAC_DMTE6, DMAC_DMTE7, DMAC_DMAE),
 551 };
 552
 553 /* SH7750R, SH7751 and SH7751R all have two extra timer channels */
 554
 555 static struct intc_vect vectors_tmu34[] = {
 556         INTC_VECT(TMU3, 0xb00), INTC_VECT(TMU4, 0xb80),
 557 };
 558
 559 static struct intc_mask_reg mask_registers[] = {
 560         { 0xfe080040, 0xfe080060, 32, /* INTMSK00 / INTMSKCLR00 */
 561           { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 562             0, 0, 0, 0, 0, 0, TMU4, TMU3,
 563             PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
 564             PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2,
 565             PCIC1_PCIDMA3, PCIC0_PCISERR } },
 566 };
 567
 568 /* SH7750S, SH7750R, SH7751 and SH7751R all have IRLM priority registers */
 569
 570 static struct intc_vect vectors_irlm[] = {
 571         INTC_VECT(IRL0, 0x240), INTC_VECT(IRL1, 0x2a0),
 572         INTC_VECT(IRL2, 0x300), INTC_VECT(IRL3, 0x360),
 573 };
 574
 575 /* SH7751 and SH7751R both have PCI */
 576
 577 static struct intc_vect vectors_pci[] = {
 578         INTC_VECT(PCIC0_PCISERR, 0xa00), INTC_VECT(PCIC1_PCIERR, 0xae0),
 579         INTC_VECT(PCIC1_PCIPWDWN, 0xac0), INTC_VECT(PCIC1_PCIPWON, 0xaa0),
 580         INTC_VECT(PCIC1_PCIDMA0, 0xa80), INTC_VECT(PCIC1_PCIDMA1, 0xa60),
 581         INTC_VECT(PCIC1_PCIDMA2, 0xa40), INTC_VECT(PCIC1_PCIDMA3, 0xa20),
 582 };
 583
 584 static struct intc_group groups_pci[] = {
 585         INTC_GROUP(PCIC1, PCIC1_PCIERR, PCIC1_PCIPWDWN, PCIC1_PCIPWON,
 586                    PCIC1_PCIDMA0, PCIC1_PCIDMA1, PCIC1_PCIDMA2, PCIC1_PCIDMA3),
 587 };
 588
 589 static struct intc_vect vectors_irl[] = {
 590         INTC_VECT(IRL_0, 0x200),
 591         INTC_VECT(IRL_1, 0x220),
 592         INTC_VECT(IRL_2, 0x240),
 593         INTC_VECT(IRL_3, 0x260),
 594         INTC_VECT(IRL_4, 0x280),
 595         INTC_VECT(IRL_5, 0x2a0),
 596         INTC_VECT(IRL_6, 0x2c0),
 597         INTC_VECT(IRL_7, 0x2e0),
 598         INTC_VECT(IRL_8, 0x300),
 599         INTC_VECT(IRL_9, 0x320),
 600         INTC_VECT(IRL_A, 0x340),
 601         INTC_VECT(IRL_B, 0x360),
 602         INTC_VECT(IRL_C, 0x380),
 603         INTC_VECT(IRL_D, 0x3a0),
 604         INTC_VECT(IRL_E, 0x3c0),
 605 };
 606
 607 static struct intc_group groups_irl[] = {
 608         INTC_GROUP(IRL, IRL_0, IRL_1, IRL_2, IRL_3, IRL_4, IRL_5, IRL_6,
 609                 IRL_7, IRL_8, IRL_9, IRL_A, IRL_B, IRL_C, IRL_D, IRL_E),
 610 };
 611
 612 /**********************************************************************
 613  Memory mapped cache and TLB
 614 **********************************************************************/
 615
 616 #define MM_REGION_MASK   0x07000000
 617 #define MM_ICACHE_ADDR   (0)
 618 #define MM_ICACHE_DATA   (1)
 619 #define MM_ITLB_ADDR     (2)
 620 #define MM_ITLB_DATA     (3)
 621 #define MM_OCACHE_ADDR   (4)
 622 #define MM_OCACHE_DATA   (5)
 623 #define MM_UTLB_ADDR     (6)
 624 #define MM_UTLB_DATA     (7)
 625 #define MM_REGION_TYPE(addr)  ((addr & MM_REGION_MASK) >> 24)
 626
 627 static uint64_t invalid_read(void *opaque, hwaddr addr)
 628 {
 629     abort();
 630
 631     return 0;
 632 }
 633
 634 static uint64_t sh7750_mmct_read(void *opaque, hwaddr addr,
 635                                  unsigned size)
 636 {
 637     SH7750State *s = opaque;
 638     uint32_t ret = 0;
 639
 640     if (size != 4) {
 641         return invalid_read(opaque, addr);
 642     }
 643
 644     switch (MM_REGION_TYPE(addr)) {
 645     case MM_ICACHE_ADDR:
 646     case MM_ICACHE_DATA:
 647         /* do nothing */
 648         break;
 649     case MM_ITLB_ADDR:
 650         ret = cpu_sh4_read_mmaped_itlb_addr(s->cpu, addr);
 651         break;
 652     case MM_ITLB_DATA:
 653         ret = cpu_sh4_read_mmaped_itlb_data(s->cpu, addr);
 654         break;
 655     case MM_OCACHE_ADDR:
 656     case MM_OCACHE_DATA:
 657         /* do nothing */
 658         break;
 659     case MM_UTLB_ADDR:
 660         ret = cpu_sh4_read_mmaped_utlb_addr(s->cpu, addr);
 661         break;
 662     case MM_UTLB_DATA:
 663         ret = cpu_sh4_read_mmaped_utlb_data(s->cpu, addr);
 664         break;
 665     default:
 666         abort();
 667     }
 668
 669     return ret;
 670 }
 671
 672 static void invalid_write(void *opaque, hwaddr addr,
 673                           uint64_t mem_value)
 674 {
 675     abort();
 676 }
 677
 678 static void sh7750_mmct_write(void *opaque, hwaddr addr,
 679                               uint64_t mem_value, unsigned size)
 680 {
 681     SH7750State *s = opaque;
 682
 683     if (size != 4) {
 684         invalid_write(opaque, addr, mem_value);
 685     }
 686
 687     switch (MM_REGION_TYPE(addr)) {
 688     case MM_ICACHE_ADDR:
 689     case MM_ICACHE_DATA:
 690         /* do nothing */
 691         break;
 692     case MM_ITLB_ADDR:
 693         cpu_sh4_write_mmaped_itlb_addr(s->cpu, addr, mem_value);
 694         break;
 695     case MM_ITLB_DATA:
 696         cpu_sh4_write_mmaped_itlb_data(s->cpu, addr, mem_value);
 697         abort();
 698         break;
 699     case MM_OCACHE_ADDR:
 700     case MM_OCACHE_DATA:
 701         /* do nothing */
 702         break;
 703     case MM_UTLB_ADDR:
 704         cpu_sh4_write_mmaped_utlb_addr(s->cpu, addr, mem_value);
 705         break;
 706     case MM_UTLB_DATA:
 707         cpu_sh4_write_mmaped_utlb_data(s->cpu, addr, mem_value);
 708         break;
 709     default:
 710         abort();
 711         break;
 712     }
 713 }
 714
 715 static const MemoryRegionOps sh7750_mmct_ops = {
 716     .read = sh7750_mmct_read,
 717     .write = sh7750_mmct_write,
 718     .endianness = DEVICE_NATIVE_ENDIAN,
 719 };
 720
 721 SH7750State *sh7750_init(CPUSH4State * cpu, MemoryRegion *sysmem)
 722 {
 723     SH7750State *s;
 724
 725     s = g_malloc0(sizeof(SH7750State));
 726     s->cpu = cpu;
 727     s->periph_freq = 60000000;  /* 60MHz */
 728     memory_region_init_io(&s->iomem, &sh7750_mem_ops, s,
 729                           "memory", 0x1fc01000);
 730
 731     memory_region_init_alias(&s->iomem_1f0, "memory-1f0",
 732                              &s->iomem, 0x1f000000, 0x1000);
 733     memory_region_add_subregion(sysmem, 0x1f000000, &s->iomem_1f0);
 734
 735     memory_region_init_alias(&s->iomem_ff0, "memory-ff0",
 736                              &s->iomem, 0x1f000000, 0x1000);
 737     memory_region_add_subregion(sysmem, 0xff000000, &s->iomem_ff0);
 738
 739     memory_region_init_alias(&s->iomem_1f8, "memory-1f8",
 740                              &s->iomem, 0x1f800000, 0x1000);
 741     memory_region_add_subregion(sysmem, 0x1f800000, &s->iomem_1f8);
 742
 743     memory_region_init_alias(&s->iomem_ff8, "memory-ff8",
 744                              &s->iomem, 0x1f800000, 0x1000);
 745     memory_region_add_subregion(sysmem, 0xff800000, &s->iomem_ff8);
 746
 747     memory_region_init_alias(&s->iomem_1fc, "memory-1fc",
 748                              &s->iomem, 0x1fc00000, 0x1000);
 749     memory_region_add_subregion(sysmem, 0x1fc00000, &s->iomem_1fc);
 750
 751     memory_region_init_alias(&s->iomem_ffc, "memory-ffc",
 752                              &s->iomem, 0x1fc00000, 0x1000);
 753     memory_region_add_subregion(sysmem, 0xffc00000, &s->iomem_ffc);
 754
 755     memory_region_init_io(&s->mmct_iomem, &sh7750_mmct_ops, s,
 756                           "cache-and-tlb", 0x08000000);
 757     memory_region_add_subregion(sysmem, 0xf0000000, &s->mmct_iomem);
 758
 759     sh_intc_init(sysmem, &s->intc, NR_SOURCES,
 760                  _INTC_ARRAY(mask_registers),
 761                  _INTC_ARRAY(prio_registers));
 762
 763     sh_intc_register_sources(&s->intc,
 764                              _INTC_ARRAY(vectors),
 765                              _INTC_ARRAY(groups));
 766
 767     cpu->intc_handle = &s->intc;
 768
 769     sh_serial_init(sysmem, 0x1fe00000,
 770                    0, s->periph_freq, serial_hds[0],
 771                    s->intc.irqs[SCI1_ERI],
 772                    s->intc.irqs[SCI1_RXI],
 773                    s->intc.irqs[SCI1_TXI],
 774                    s->intc.irqs[SCI1_TEI],
 775                    NULL);
 776     sh_serial_init(sysmem, 0x1fe80000,
 777                    SH_SERIAL_FEAT_SCIF,
 778                    s->periph_freq, serial_hds[1],
 779                    s->intc.irqs[SCIF_ERI],
 780                    s->intc.irqs[SCIF_RXI],
 781                    s->intc.irqs[SCIF_TXI],
 782                    NULL,
 783                    s->intc.irqs[SCIF_BRI]);
 784
 785     tmu012_init(sysmem, 0x1fd80000,
 786                 TMU012_FEAT_TOCR | TMU012_FEAT_3CHAN | TMU012_FEAT_EXTCLK,
 787                 s->periph_freq,
 788                 s->intc.irqs[TMU0],
 789                 s->intc.irqs[TMU1],
 790                 s->intc.irqs[TMU2_TUNI],
 791                 s->intc.irqs[TMU2_TICPI]);
 792
 793     if (cpu->id & (SH_CPU_SH7750 | SH_CPU_SH7750S | SH_CPU_SH7751)) {
 794         sh_intc_register_sources(&s->intc,
 795                                  _INTC_ARRAY(vectors_dma4),
 796                                  _INTC_ARRAY(groups_dma4));
 797     }
 798
 799     if (cpu->id & (SH_CPU_SH7750R | SH_CPU_SH7751R)) {
 800         sh_intc_register_sources(&s->intc,
 801                                  _INTC_ARRAY(vectors_dma8),
 802                                  _INTC_ARRAY(groups_dma8));
 803     }
 804
 805     if (cpu->id & (SH_CPU_SH7750R | SH_CPU_SH7751 | SH_CPU_SH7751R)) {
 806         sh_intc_register_sources(&s->intc,
 807                                  _INTC_ARRAY(vectors_tmu34),
 808                                  NULL, 0);
 809         tmu012_init(sysmem, 0x1e100000, 0, s->periph_freq,
 810                     s->intc.irqs[TMU3],
 811                     s->intc.irqs[TMU4],
 812                     NULL, NULL);
 813     }
 814
 815     if (cpu->id & (SH_CPU_SH7751_ALL)) {
 816         sh_intc_register_sources(&s->intc,
 817                                  _INTC_ARRAY(vectors_pci),
 818                                  _INTC_ARRAY(groups_pci));
 819     }
 820
 821     if (cpu->id & (SH_CPU_SH7750S | SH_CPU_SH7750R | SH_CPU_SH7751_ALL)) {
 822         sh_intc_register_sources(&s->intc,
 823                                  _INTC_ARRAY(vectors_irlm),
 824                                  NULL, 0);
 825     }
 826
 827     sh_intc_register_sources(&s->intc,
 828                                 _INTC_ARRAY(vectors_irl),
 829                                 _INTC_ARRAY(groups_irl));
 830     return s;
 831 }
 832
 833 qemu_irq sh7750_irl(SH7750State *s)
 834 {
 835     sh_intc_toggle_source(sh_intc_source(&s->intc, IRL), 1, 0); /* enable */
 836     return qemu_allocate_irqs(sh_intc_set_irl, sh_intc_source(&s->intc, IRL),
 837                                1)[0];
 838 }