Commit 5856de800df5789b8641c47be5399afff7773910
1 parent
fde7d5bd
MIPS Malta system and devices support, by Aurelien Jarno and Stefan Weil.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2319 c046a42c-6fe2-441c-8c8c-71466251a162
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601 additions
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2 deletions
Makefile.target
| ... | ... | @@ -361,8 +361,10 @@ VL_OBJS+= grackle_pci.o prep_pci.o unin_pci.o |
| 361 | 361 | CPPFLAGS += -DHAS_AUDIO |
| 362 | 362 | endif |
| 363 | 363 | ifeq ($(TARGET_ARCH), mips) |
| 364 | -VL_OBJS+= mips_r4k.o mips_timer.o dma.o vga.o serial.o i8254.o i8259.o ide.o | |
| 365 | -VL_OBJS+= mc146818rtc.o #pckbd.o fdc.o m48t59.o | |
| 364 | +VL_OBJS+= mips_r4k.o mips_malta.o mips_timer.o dma.o vga.o serial.o i8254.o i8259.o | |
| 365 | +VL_OBJS+= ide.o gt64xxx.o pckbd.o ps2.o fdc.o mc146818rtc.o usb-uhci.o acpi.o | |
| 366 | +VL_OBJS+= piix_pci.o parallel.o mixeng.o cirrus_vga.o $(SOUND_HW) $(AUDIODRV) | |
| 367 | +DEFINES += -DHAS_AUDIO | |
| 366 | 368 | endif |
| 367 | 369 | ifeq ($(TARGET_BASE_ARCH), sparc) |
| 368 | 370 | ifeq ($(TARGET_ARCH), sparc64) | ... | ... |
hw/mips_malta.c
0 → 100644
| 1 | +/* | |
| 2 | + * QEMU Malta board support | |
| 3 | + * | |
| 4 | + * Copyright (c) 2006 Aurelien Jarno | |
| 5 | + * | |
| 6 | + * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| 7 | + * of this software and associated documentation files (the "Software"), to deal | |
| 8 | + * in the Software without restriction, including without limitation the rights | |
| 9 | + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| 10 | + * copies of the Software, and to permit persons to whom the Software is | |
| 11 | + * furnished to do so, subject to the following conditions: | |
| 12 | + * | |
| 13 | + * The above copyright notice and this permission notice shall be included in | |
| 14 | + * all copies or substantial portions of the Software. | |
| 15 | + * | |
| 16 | + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 17 | + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 18 | + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
| 19 | + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 20 | + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 21 | + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
| 22 | + * THE SOFTWARE. | |
| 23 | + */ | |
| 24 | + | |
| 25 | +#include "vl.h" | |
| 26 | + | |
| 27 | +#define BIOS_FILENAME "mips_bios.bin" | |
| 28 | +#ifdef MIPS_HAS_MIPS64 | |
| 29 | +#define INITRD_LOAD_ADDR (uint64_t)0x80800000 | |
| 30 | +#define ENVP_ADDR (uint64_t)0x80002000 | |
| 31 | +#else | |
| 32 | +#define INITRD_LOAD_ADDR (uint32_t)0x80800000 | |
| 33 | +#define ENVP_ADDR (uint32_t)0x80002000 | |
| 34 | +#endif | |
| 35 | + | |
| 36 | +#define VIRT_TO_PHYS_ADDEND (-((uint64_t)(uint32_t)0x80000000)) | |
| 37 | + | |
| 38 | +#define ENVP_NB_ENTRIES 16 | |
| 39 | +#define ENVP_ENTRY_SIZE 256 | |
| 40 | + | |
| 41 | + | |
| 42 | +extern FILE *logfile; | |
| 43 | + | |
| 44 | +typedef struct { | |
| 45 | + uint32_t leds; | |
| 46 | + uint32_t brk; | |
| 47 | + uint32_t gpout; | |
| 48 | + uint32_t i2coe; | |
| 49 | + uint32_t i2cout; | |
| 50 | + uint32_t i2csel; | |
| 51 | + CharDriverState *display; | |
| 52 | + char display_text[9]; | |
| 53 | +} MaltaFPGAState; | |
| 54 | + | |
| 55 | +static PITState *pit; | |
| 56 | + | |
| 57 | +static void pic_irq_request(void *opaque, int level) | |
| 58 | +{ | |
| 59 | + CPUState *env = first_cpu; | |
| 60 | + if (level) { | |
| 61 | + env->CP0_Cause |= 0x00000400; | |
| 62 | + cpu_interrupt(env, CPU_INTERRUPT_HARD); | |
| 63 | + } else { | |
| 64 | + env->CP0_Cause &= ~0x00000400; | |
| 65 | + cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); | |
| 66 | + } | |
| 67 | +} | |
| 68 | + | |
| 69 | +/* Malta FPGA */ | |
| 70 | +static void malta_fpga_update_display(void *opaque) | |
| 71 | +{ | |
| 72 | + char leds_text[9]; | |
| 73 | + int i; | |
| 74 | + MaltaFPGAState *s = opaque; | |
| 75 | + | |
| 76 | + for (i = 7 ; i >= 0 ; i--) { | |
| 77 | + if (s->leds & (1 << i)) | |
| 78 | + leds_text[i] = '#'; | |
| 79 | + else | |
| 80 | + leds_text[i] = ' '; | |
| 81 | + } | |
| 82 | + leds_text[8] = '\0'; | |
| 83 | + | |
| 84 | + qemu_chr_printf(s->display, "\e[H\n\n|\e[31m%-8.8s\e[00m|\r\n", leds_text); | |
| 85 | + qemu_chr_printf(s->display, "\n\n\n\n|\e[32m%-8.8s\e[00m|", s->display_text); | |
| 86 | +} | |
| 87 | + | |
| 88 | +static uint32_t malta_fpga_readl(void *opaque, target_phys_addr_t addr) | |
| 89 | +{ | |
| 90 | + MaltaFPGAState *s = opaque; | |
| 91 | + uint32_t val = 0; | |
| 92 | + uint32_t saddr; | |
| 93 | + | |
| 94 | + saddr = (addr & 0xfffff); | |
| 95 | + | |
| 96 | + switch (saddr) { | |
| 97 | + | |
| 98 | + /* SWITCH Register */ | |
| 99 | + case 0x00200: | |
| 100 | + val = 0x00000000; /* All switches closed */ | |
| 101 | + break; | |
| 102 | + | |
| 103 | + /* STATUS Register */ | |
| 104 | + case 0x00208: | |
| 105 | +#ifdef TARGET_WORDS_BIGENDIAN | |
| 106 | + val = 0x00000012; | |
| 107 | +#else | |
| 108 | + val = 0x00000010; | |
| 109 | +#endif | |
| 110 | + break; | |
| 111 | + | |
| 112 | + /* JMPRS Register */ | |
| 113 | + case 0x00210: | |
| 114 | + val = 0x00; | |
| 115 | + break; | |
| 116 | + | |
| 117 | + /* LEDBAR Register */ | |
| 118 | + case 0x00408: | |
| 119 | + val = s->leds; | |
| 120 | + break; | |
| 121 | + | |
| 122 | + /* BRKRES Register */ | |
| 123 | + case 0x00508: | |
| 124 | + val = s->brk; | |
| 125 | + break; | |
| 126 | + | |
| 127 | + /* GPOUT Register */ | |
| 128 | + case 0x00a00: | |
| 129 | + val = s->gpout; | |
| 130 | + break; | |
| 131 | + | |
| 132 | + /* XXX: implement a real I2C controller */ | |
| 133 | + | |
| 134 | + /* GPINP Register */ | |
| 135 | + case 0x00a08: | |
| 136 | + /* IN = OUT until a real I2C control is implemented */ | |
| 137 | + if (s->i2csel) | |
| 138 | + val = s->i2cout; | |
| 139 | + else | |
| 140 | + val = 0x00; | |
| 141 | + break; | |
| 142 | + | |
| 143 | + /* I2CINP Register */ | |
| 144 | + case 0x00b00: | |
| 145 | + val = 0x00000003; | |
| 146 | + break; | |
| 147 | + | |
| 148 | + /* I2COE Register */ | |
| 149 | + case 0x00b08: | |
| 150 | + val = s->i2coe; | |
| 151 | + break; | |
| 152 | + | |
| 153 | + /* I2COUT Register */ | |
| 154 | + case 0x00b10: | |
| 155 | + val = s->i2cout; | |
| 156 | + break; | |
| 157 | + | |
| 158 | + /* I2CSEL Register */ | |
| 159 | + case 0x00b18: | |
| 160 | + val = s->i2cout; | |
| 161 | + break; | |
| 162 | + | |
| 163 | + default: | |
| 164 | +#if 0 | |
| 165 | + printf ("malta_fpga_read: Bad register offset 0x%x\n", (int)addr); | |
| 166 | +#endif | |
| 167 | + break; | |
| 168 | + } | |
| 169 | + return val; | |
| 170 | +} | |
| 171 | + | |
| 172 | +static void malta_fpga_writel(void *opaque, target_phys_addr_t addr, | |
| 173 | + uint32_t val) | |
| 174 | +{ | |
| 175 | + MaltaFPGAState *s = opaque; | |
| 176 | + uint32_t saddr; | |
| 177 | + | |
| 178 | + saddr = (addr & 0xfffff); | |
| 179 | + | |
| 180 | + switch (saddr) { | |
| 181 | + | |
| 182 | + /* SWITCH Register */ | |
| 183 | + case 0x00200: | |
| 184 | + break; | |
| 185 | + | |
| 186 | + /* JMPRS Register */ | |
| 187 | + case 0x00210: | |
| 188 | + break; | |
| 189 | + | |
| 190 | + /* LEDBAR Register */ | |
| 191 | + /* XXX: implement a 8-LED array */ | |
| 192 | + case 0x00408: | |
| 193 | + s->leds = val & 0xff; | |
| 194 | + break; | |
| 195 | + | |
| 196 | + /* ASCIIWORD Register */ | |
| 197 | + case 0x00410: | |
| 198 | + snprintf(s->display_text, 9, "%08X", val); | |
| 199 | + malta_fpga_update_display(s); | |
| 200 | + break; | |
| 201 | + | |
| 202 | + /* ASCIIPOS0 to ASCIIPOS7 Registers */ | |
| 203 | + case 0x00418: | |
| 204 | + case 0x00420: | |
| 205 | + case 0x00428: | |
| 206 | + case 0x00430: | |
| 207 | + case 0x00438: | |
| 208 | + case 0x00440: | |
| 209 | + case 0x00448: | |
| 210 | + case 0x00450: | |
| 211 | + s->display_text[(saddr - 0x00418) >> 3] = (char) val; | |
| 212 | + malta_fpga_update_display(s); | |
| 213 | + break; | |
| 214 | + | |
| 215 | + /* SOFTRES Register */ | |
| 216 | + case 0x00500: | |
| 217 | + if (val == 0x42) | |
| 218 | + qemu_system_reset_request (); | |
| 219 | + break; | |
| 220 | + | |
| 221 | + /* BRKRES Register */ | |
| 222 | + case 0x00508: | |
| 223 | + s->brk = val & 0xff; | |
| 224 | + break; | |
| 225 | + | |
| 226 | + /* GPOUT Register */ | |
| 227 | + case 0x00a00: | |
| 228 | + s->gpout = val & 0xff; | |
| 229 | + break; | |
| 230 | + | |
| 231 | + /* I2COE Register */ | |
| 232 | + case 0x00b08: | |
| 233 | + s->i2coe = val & 0x03; | |
| 234 | + break; | |
| 235 | + | |
| 236 | + /* I2COUT Register */ | |
| 237 | + case 0x00b10: | |
| 238 | + s->i2cout = val & 0x03; | |
| 239 | + break; | |
| 240 | + | |
| 241 | + /* I2CSEL Register */ | |
| 242 | + case 0x00b18: | |
| 243 | + s->i2cout = val & 0x01; | |
| 244 | + break; | |
| 245 | + | |
| 246 | + default: | |
| 247 | +#if 0 | |
| 248 | + printf ("malta_fpga_write: Bad register offset 0x%x\n", (int)addr); | |
| 249 | +#endif | |
| 250 | + break; | |
| 251 | + } | |
| 252 | +} | |
| 253 | + | |
| 254 | +static CPUReadMemoryFunc *malta_fpga_read[] = { | |
| 255 | + malta_fpga_readl, | |
| 256 | + malta_fpga_readl, | |
| 257 | + malta_fpga_readl | |
| 258 | +}; | |
| 259 | + | |
| 260 | +static CPUWriteMemoryFunc *malta_fpga_write[] = { | |
| 261 | + malta_fpga_writel, | |
| 262 | + malta_fpga_writel, | |
| 263 | + malta_fpga_writel | |
| 264 | +}; | |
| 265 | + | |
| 266 | +void malta_fpga_reset(void *opaque) | |
| 267 | +{ | |
| 268 | + MaltaFPGAState *s = opaque; | |
| 269 | + | |
| 270 | + s->leds = 0x00; | |
| 271 | + s->brk = 0x0a; | |
| 272 | + s->gpout = 0x00; | |
| 273 | + s->i2coe = 0x0; | |
| 274 | + s->i2cout = 0x3; | |
| 275 | + s->i2csel = 0x1; | |
| 276 | + | |
| 277 | + s->display_text[8] = '\0'; | |
| 278 | + snprintf(s->display_text, 9, " "); | |
| 279 | + malta_fpga_update_display(s); | |
| 280 | +} | |
| 281 | + | |
| 282 | +MaltaFPGAState *malta_fpga_init(target_phys_addr_t base) | |
| 283 | +{ | |
| 284 | + MaltaFPGAState *s; | |
| 285 | + int malta; | |
| 286 | + | |
| 287 | + s = (MaltaFPGAState *)qemu_mallocz(sizeof(MaltaFPGAState)); | |
| 288 | + | |
| 289 | + malta = cpu_register_io_memory(0, malta_fpga_read, | |
| 290 | + malta_fpga_write, s); | |
| 291 | + cpu_register_physical_memory(base, 0x100000, malta); | |
| 292 | + | |
| 293 | + s->display = qemu_chr_open("vc"); | |
| 294 | + qemu_chr_printf(s->display, "\e[HMalta LEBDAR\r\n"); | |
| 295 | + qemu_chr_printf(s->display, "+--------+\r\n"); | |
| 296 | + qemu_chr_printf(s->display, "+ +\r\n"); | |
| 297 | + qemu_chr_printf(s->display, "+--------+\r\n"); | |
| 298 | + qemu_chr_printf(s->display, "\n"); | |
| 299 | + qemu_chr_printf(s->display, "Malta ASCII\r\n"); | |
| 300 | + qemu_chr_printf(s->display, "+--------+\r\n"); | |
| 301 | + qemu_chr_printf(s->display, "+ +\r\n"); | |
| 302 | + qemu_chr_printf(s->display, "+--------+\r\n"); | |
| 303 | + | |
| 304 | + malta_fpga_reset(s); | |
| 305 | + qemu_register_reset(malta_fpga_reset, s); | |
| 306 | + | |
| 307 | + return s; | |
| 308 | +} | |
| 309 | + | |
| 310 | +/* Audio support */ | |
| 311 | +#ifdef HAS_AUDIO | |
| 312 | +static void audio_init (PCIBus *pci_bus) | |
| 313 | +{ | |
| 314 | + struct soundhw *c; | |
| 315 | + int audio_enabled = 0; | |
| 316 | + | |
| 317 | + for (c = soundhw; !audio_enabled && c->name; ++c) { | |
| 318 | + audio_enabled = c->enabled; | |
| 319 | + } | |
| 320 | + | |
| 321 | + if (audio_enabled) { | |
| 322 | + AudioState *s; | |
| 323 | + | |
| 324 | + s = AUD_init (); | |
| 325 | + if (s) { | |
| 326 | + for (c = soundhw; c->name; ++c) { | |
| 327 | + if (c->enabled) { | |
| 328 | + if (c->isa) { | |
| 329 | + fprintf(stderr, "qemu: Unsupported Sound Card: %s\n", c->name); | |
| 330 | + exit(1); | |
| 331 | + } | |
| 332 | + else { | |
| 333 | + if (pci_bus) { | |
| 334 | + c->init.init_pci (pci_bus, s); | |
| 335 | + } | |
| 336 | + } | |
| 337 | + } | |
| 338 | + } | |
| 339 | + } | |
| 340 | + } | |
| 341 | +} | |
| 342 | +#endif | |
| 343 | + | |
| 344 | +/* Network support */ | |
| 345 | +static void network_init (PCIBus *pci_bus) | |
| 346 | +{ | |
| 347 | + int i; | |
| 348 | + NICInfo *nd; | |
| 349 | + | |
| 350 | + for(i = 0; i < nb_nics; i++) { | |
| 351 | + nd = &nd_table[i]; | |
| 352 | + if (!nd->model) { | |
| 353 | + nd->model = "pcnet"; | |
| 354 | + } | |
| 355 | + if (i == 0 && strcmp(nd->model, "pcnet") == 0) { | |
| 356 | + /* The malta board has a PCNet card using PCI SLOT 11 */ | |
| 357 | + pci_nic_init(pci_bus, nd, 88); | |
| 358 | + } else { | |
| 359 | + pci_nic_init(pci_bus, nd, -1); | |
| 360 | + } | |
| 361 | + } | |
| 362 | +} | |
| 363 | + | |
| 364 | +/* ROM and pseudo bootloader | |
| 365 | + | |
| 366 | + The following code implements a very very simple bootloader. It first | |
| 367 | + loads the registers a0 to a3 to the values expected by the OS, and | |
| 368 | + then jump at the kernel address. | |
| 369 | + | |
| 370 | + The bootloader should pass the locations of the kernel arguments and | |
| 371 | + environment variables tables. Those tables contain the 32-bit address | |
| 372 | + of NULL terminated strings. The environment variables table should be | |
| 373 | + terminated by a NULL address. | |
| 374 | + | |
| 375 | + For a simpler implementation, the number of kernel arguments is fixed | |
| 376 | + to two (the name of the kernel and the command line), and the two | |
| 377 | + tables are actually the same one. | |
| 378 | + | |
| 379 | + The registers a0 to a3 should contain the following values: | |
| 380 | + a0 - number of kernel arguments | |
| 381 | + a1 - 32-bit address of the kernel arguments table | |
| 382 | + a2 - 32-bit address of the environment variables table | |
| 383 | + a3 - RAM size in bytes | |
| 384 | +*/ | |
| 385 | + | |
| 386 | +static void write_bootloader (CPUState *env, unsigned long bios_offset, int64_t kernel_addr) | |
| 387 | +{ | |
| 388 | + uint32_t *p; | |
| 389 | + | |
| 390 | + /* Small bootloader */ | |
| 391 | + p = (uint32_t *) (phys_ram_base + bios_offset); | |
| 392 | + stl_raw(p++, 0x0bf00010); /* j 0x1fc00040 */ | |
| 393 | + stl_raw(p++, 0x00000000); /* nop */ | |
| 394 | + | |
| 395 | + /* Second part of the bootloader */ | |
| 396 | + p = (uint32_t *) (phys_ram_base + bios_offset + 0x040); | |
| 397 | + stl_raw(p++, 0x3c040000); /* lui a0, 0 */ | |
| 398 | + stl_raw(p++, 0x34840002); /* ori a0, a0, 2 */ | |
| 399 | + stl_raw(p++, 0x3c050000 | ((ENVP_ADDR) >> 16)); /* lui a1, high(ENVP_ADDR) */ | |
| 400 | + stl_raw(p++, 0x34a50000 | ((ENVP_ADDR) & 0xffff)); /* ori a1, a0, low(ENVP_ADDR) */ | |
| 401 | + stl_raw(p++, 0x3c060000 | ((ENVP_ADDR + 8) >> 16)); /* lui a2, high(ENVP_ADDR + 8) */ | |
| 402 | + stl_raw(p++, 0x34c60000 | ((ENVP_ADDR + 8) & 0xffff)); /* ori a2, a2, low(ENVP_ADDR + 8) */ | |
| 403 | + stl_raw(p++, 0x3c070000 | ((env->ram_size) >> 16)); /* lui a3, high(env->ram_size) */ | |
| 404 | + stl_raw(p++, 0x34e70000 | ((env->ram_size) & 0xffff)); /* ori a3, a3, low(env->ram_size) */ | |
| 405 | + stl_raw(p++, 0x3c1f0000 | ((kernel_addr) >> 16)); /* lui ra, high(kernel_addr) */; | |
| 406 | + stl_raw(p++, 0x37ff0000 | ((kernel_addr) & 0xffff)); /* ori ra, ra, low(kernel_addr) */ | |
| 407 | + stl_raw(p++, 0x03e00008); /* jr ra */ | |
| 408 | + stl_raw(p++, 0x00000000); /* nop */ | |
| 409 | +} | |
| 410 | + | |
| 411 | +static void prom_set(int index, const char *string, ...) | |
| 412 | +{ | |
| 413 | + va_list ap; | |
| 414 | + uint32_t *p; | |
| 415 | + uint32_t table_addr; | |
| 416 | + char *s; | |
| 417 | + | |
| 418 | + if (index >= ENVP_NB_ENTRIES) | |
| 419 | + return; | |
| 420 | + | |
| 421 | + p = (uint32_t *) (phys_ram_base + ENVP_ADDR + VIRT_TO_PHYS_ADDEND); | |
| 422 | + p += index; | |
| 423 | + | |
| 424 | + if (string == NULL) { | |
| 425 | + stl_raw(p, 0); | |
| 426 | + return; | |
| 427 | + } | |
| 428 | + | |
| 429 | + table_addr = ENVP_ADDR + sizeof(uint32_t) * ENVP_NB_ENTRIES + index * ENVP_ENTRY_SIZE; | |
| 430 | + s = (char *) (phys_ram_base + VIRT_TO_PHYS_ADDEND + table_addr); | |
| 431 | + | |
| 432 | + stl_raw(p, table_addr); | |
| 433 | + | |
| 434 | + va_start(ap, string); | |
| 435 | + vsnprintf (s, ENVP_ENTRY_SIZE, string, ap); | |
| 436 | + va_end(ap); | |
| 437 | +} | |
| 438 | + | |
| 439 | +/* Kernel */ | |
| 440 | +static int64_t load_kernel (CPUState *env) | |
| 441 | +{ | |
| 442 | + int64_t kernel_addr = 0; | |
| 443 | + int index = 0; | |
| 444 | + long initrd_size; | |
| 445 | + | |
| 446 | + if (load_elf(env->kernel_filename, VIRT_TO_PHYS_ADDEND, &kernel_addr) < 0) { | |
| 447 | + fprintf(stderr, "qemu: could not load kernel '%s'\n", | |
| 448 | + env->kernel_filename); | |
| 449 | + exit(1); | |
| 450 | + } | |
| 451 | + | |
| 452 | + /* load initrd */ | |
| 453 | + initrd_size = 0; | |
| 454 | + if (env->initrd_filename) { | |
| 455 | + initrd_size = load_image(env->initrd_filename, | |
| 456 | + phys_ram_base + INITRD_LOAD_ADDR + VIRT_TO_PHYS_ADDEND); | |
| 457 | + if (initrd_size == (target_ulong) -1) { | |
| 458 | + fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", | |
| 459 | + env->initrd_filename); | |
| 460 | + exit(1); | |
| 461 | + } | |
| 462 | + } | |
| 463 | + | |
| 464 | + /* Store command line. */ | |
| 465 | + prom_set(index++, env->kernel_filename); | |
| 466 | + if (initrd_size > 0) | |
| 467 | + prom_set(index++, "rd_start=0x%08x rd_size=%li %s", INITRD_LOAD_ADDR, initrd_size, env->kernel_cmdline); | |
| 468 | + else | |
| 469 | + prom_set(index++, env->kernel_cmdline); | |
| 470 | + | |
| 471 | + /* Setup minimum environment variables */ | |
| 472 | + prom_set(index++, "memsize"); | |
| 473 | + prom_set(index++, "%i", env->ram_size); | |
| 474 | + prom_set(index++, "modetty0"); | |
| 475 | + prom_set(index++, "38400n8r"); | |
| 476 | + prom_set(index++, NULL); | |
| 477 | + | |
| 478 | + return kernel_addr; | |
| 479 | +} | |
| 480 | + | |
| 481 | +static void main_cpu_reset(void *opaque) | |
| 482 | +{ | |
| 483 | + CPUState *env = opaque; | |
| 484 | + cpu_reset(env); | |
| 485 | + | |
| 486 | + /* The bootload does not need to be rewritten as it is located in a | |
| 487 | + read only location. The kernel location and the arguments table | |
| 488 | + location does not change. */ | |
| 489 | + if (env->kernel_filename) | |
| 490 | + load_kernel (env); | |
| 491 | +} | |
| 492 | + | |
| 493 | +void mips_malta_init (int ram_size, int vga_ram_size, int boot_device, | |
| 494 | + DisplayState *ds, const char **fd_filename, int snapshot, | |
| 495 | + const char *kernel_filename, const char *kernel_cmdline, | |
| 496 | + const char *initrd_filename) | |
| 497 | +{ | |
| 498 | + char buf[1024]; | |
| 499 | + unsigned long bios_offset; | |
| 500 | + int64_t kernel_addr; | |
| 501 | + PCIBus *pci_bus; | |
| 502 | + CPUState *env; | |
| 503 | + RTCState *rtc_state; | |
| 504 | + fdctrl_t *floppy_controller; | |
| 505 | + MaltaFPGAState *malta_fpga; | |
| 506 | + int ret; | |
| 507 | + | |
| 508 | + env = cpu_init(); | |
| 509 | + register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); | |
| 510 | + qemu_register_reset(main_cpu_reset, env); | |
| 511 | + | |
| 512 | + /* allocate RAM */ | |
| 513 | + cpu_register_physical_memory(0, ram_size, IO_MEM_RAM); | |
| 514 | + | |
| 515 | + /* Map the bios at two physical locations, as on the real board */ | |
| 516 | + bios_offset = ram_size + vga_ram_size; | |
| 517 | + cpu_register_physical_memory(0x1e000000LL, | |
| 518 | + BIOS_SIZE, bios_offset | IO_MEM_ROM); | |
| 519 | + cpu_register_physical_memory(0x1fc00000LL, | |
| 520 | + BIOS_SIZE, bios_offset | IO_MEM_ROM); | |
| 521 | + | |
| 522 | + /* Load a BIOS image except if a kernel image has been specified. In | |
| 523 | + the later case, just write a small bootloader to the flash | |
| 524 | + location. */ | |
| 525 | + if (kernel_filename) { | |
| 526 | + env->ram_size = ram_size; | |
| 527 | + env->kernel_filename = kernel_filename; | |
| 528 | + env->kernel_cmdline = kernel_cmdline; | |
| 529 | + env->initrd_filename = initrd_filename; | |
| 530 | + kernel_addr = load_kernel(env); | |
| 531 | + write_bootloader(env, bios_offset, kernel_addr); | |
| 532 | + } else { | |
| 533 | + snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME); | |
| 534 | + ret = load_image(buf, phys_ram_base + bios_offset); | |
| 535 | + if (ret != BIOS_SIZE) { | |
| 536 | + fprintf(stderr, "qemu: Warning, could not load MIPS bios '%s'\n", | |
| 537 | + buf); | |
| 538 | + exit(1); | |
| 539 | + } | |
| 540 | + } | |
| 541 | + | |
| 542 | + /* Board ID = 0x420 (Malta Board with CoreLV) | |
| 543 | + XXX: theoretically 0x1e000010 should map to flash and 0x1fc00010 should | |
| 544 | + map to the board ID. */ | |
| 545 | + stl_raw(phys_ram_base + bios_offset + 0x10, 0x00000420); | |
| 546 | + | |
| 547 | + /* Init internal devices */ | |
| 548 | + cpu_mips_clock_init(env); | |
| 549 | + cpu_mips_irqctrl_init(); | |
| 550 | + | |
| 551 | + /* FPGA */ | |
| 552 | + malta_fpga = malta_fpga_init(0x1f000000LL); | |
| 553 | + | |
| 554 | + /* Interrupt controller */ | |
| 555 | + isa_pic = pic_init(pic_irq_request, env); | |
| 556 | + | |
| 557 | + /* Northbridge */ | |
| 558 | + pci_bus = pci_gt64120_init(isa_pic); | |
| 559 | + | |
| 560 | + /* Southbridge */ | |
| 561 | + piix4_init(pci_bus, 80); | |
| 562 | + pci_piix3_ide_init(pci_bus, bs_table, 81); | |
| 563 | + usb_uhci_init(pci_bus, 82); | |
| 564 | + piix4_pm_init(pci_bus, 83); | |
| 565 | + pit = pit_init(0x40, 0); | |
| 566 | + DMA_init(0); | |
| 567 | + | |
| 568 | + /* Super I/O */ | |
| 569 | + kbd_init(); | |
| 570 | + rtc_state = rtc_init(0x70, 8); | |
| 571 | + serial_init(&pic_set_irq_new, isa_pic, 0x3f8, 4, serial_hds[0]); | |
| 572 | + parallel_init(0x378, 7, parallel_hds[0]); | |
| 573 | + /* XXX: The floppy controller does not work correctly, something is | |
| 574 | + probably wrong */ | |
| 575 | + floppy_controller = fdctrl_init(6, 2, 0, 0x3f0, fd_table); | |
| 576 | + | |
| 577 | + /* Sound card */ | |
| 578 | +#ifdef HAS_AUDIO | |
| 579 | + audio_init(pci_bus); | |
| 580 | +#endif | |
| 581 | + | |
| 582 | + /* Network card */ | |
| 583 | + network_init(pci_bus); | |
| 584 | +} | |
| 585 | + | |
| 586 | +QEMUMachine mips_malta_machine = { | |
| 587 | + "malta", | |
| 588 | + "MIPS Malta Core LV", | |
| 589 | + mips_malta_init, | |
| 590 | +}; | ... | ... |
vl.c
| ... | ... | @@ -6370,6 +6370,7 @@ void register_machines(void) |
| 6370 | 6370 | qemu_register_machine(&prep_machine); |
| 6371 | 6371 | #elif defined(TARGET_MIPS) |
| 6372 | 6372 | qemu_register_machine(&mips_machine); |
| 6373 | + qemu_register_machine(&mips_malta_machine); | |
| 6373 | 6374 | #elif defined(TARGET_SPARC) |
| 6374 | 6375 | #ifdef TARGET_SPARC64 |
| 6375 | 6376 | qemu_register_machine(&sun4u_machine); | ... | ... |
vl.h
| ... | ... | @@ -302,6 +302,7 @@ typedef struct CharDriverState { |
| 302 | 302 | QEMUBH *bh; |
| 303 | 303 | } CharDriverState; |
| 304 | 304 | |
| 305 | +CharDriverState *qemu_chr_open(const char *filename); | |
| 305 | 306 | void qemu_chr_printf(CharDriverState *s, const char *fmt, ...); |
| 306 | 307 | int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len); |
| 307 | 308 | void qemu_chr_send_event(CharDriverState *s, int event); |
| ... | ... | @@ -824,6 +825,8 @@ void i440fx_set_smm(PCIDevice *d, int val); |
| 824 | 825 | int piix3_init(PCIBus *bus, int devfn); |
| 825 | 826 | void i440fx_init_memory_mappings(PCIDevice *d); |
| 826 | 827 | |
| 828 | +int piix4_init(PCIBus *bus, int devfn); | |
| 829 | + | |
| 827 | 830 | /* openpic.c */ |
| 828 | 831 | typedef struct openpic_t openpic_t; |
| 829 | 832 | void openpic_set_irq(void *opaque, int n_IRQ, int level); |
| ... | ... | @@ -1059,6 +1062,9 @@ extern QEMUMachine heathrow_machine; |
| 1059 | 1062 | /* mips_r4k.c */ |
| 1060 | 1063 | extern QEMUMachine mips_machine; |
| 1061 | 1064 | |
| 1065 | +/* mips_malta.c */ | |
| 1066 | +extern QEMUMachine mips_malta_machine; | |
| 1067 | + | |
| 1062 | 1068 | /* mips_timer.c */ |
| 1063 | 1069 | extern void cpu_mips_clock_init(CPUState *); |
| 1064 | 1070 | extern void cpu_mips_irqctrl_init (void); | ... | ... |