hw/ppc_newworld.c

   1 /*
   2  * QEMU PowerPC CHRP (currently NewWorld PowerMac) hardware System Emulator
   3  *
   4  * Copyright (c) 2004-2007 Fabrice Bellard
   5  * Copyright (c) 2007 Jocelyn Mayer
   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 "hw.h"
  26 #include "ppc.h"
  27 #include "ppc_mac.h"
  28 #include "mac_dbdma.h"
  29 #include "nvram.h"
  30 #include "pc.h"
  31 #include "pci.h"
  32 #include "net.h"
  33 #include "sysemu.h"
  34 #include "boards.h"
  35 #include "fw_cfg.h"
  36 #include "escc.h"
  37 #include "openpic.h"
  38 #include "ide.h"
  39 #include "loader.h"
  40 #include "elf.h"
  41
  42 #define MAX_IDE_BUS 2
  43 #define VGA_BIOS_SIZE 65536
  44 #define CFG_ADDR 0xf0000510
  45
  46 /* debug UniNorth */
  47 //#define DEBUG_UNIN
  48
  49 #ifdef DEBUG_UNIN
  50 #define UNIN_DPRINTF(fmt, ...)                                  \
  51     do { printf("UNIN: " fmt , ## __VA_ARGS__); } while (0)
  52 #else
  53 #define UNIN_DPRINTF(fmt, ...)
  54 #endif
  55
  56 /* UniN device */
  57 static void unin_writel (void *opaque, target_phys_addr_t addr, uint32_t value)
  58 {
  59     UNIN_DPRINTF("writel addr " TARGET_FMT_plx " val %x\n", addr, value);
  60 }
  61
  62 static uint32_t unin_readl (void *opaque, target_phys_addr_t addr)
  63 {
  64     uint32_t value;
  65
  66     value = 0;
  67     UNIN_DPRINTF("readl addr " TARGET_FMT_plx " val %x\n", addr, value);
  68
  69     return value;
  70 }
  71
  72 static CPUWriteMemoryFunc * const unin_write[] = {
  73     &unin_writel,
  74     &unin_writel,
  75     &unin_writel,
  76 };
  77
  78 static CPUReadMemoryFunc * const unin_read[] = {
  79     &unin_readl,
  80     &unin_readl,
  81     &unin_readl,
  82 };
  83
  84 static int fw_cfg_boot_set(void *opaque, const char *boot_device)
  85 {
  86     fw_cfg_add_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
  87     return 0;
  88 }
  89
  90 /* PowerPC Mac99 hardware initialisation */
  91 static void ppc_core99_init (ram_addr_t ram_size,
  92                              const char *boot_device,
  93                              const char *kernel_filename,
  94                              const char *kernel_cmdline,
  95                              const char *initrd_filename,
  96                              const char *cpu_model)
  97 {
  98     CPUState *env = NULL, *envs[MAX_CPUS];
  99     char *filename;
 100     qemu_irq *pic, **openpic_irqs;
 101     int unin_memory;
 102     int linux_boot, i;
 103     ram_addr_t ram_offset, bios_offset, vga_bios_offset;
 104     uint32_t kernel_base, kernel_size, initrd_base, initrd_size;
 105     PCIBus *pci_bus;
 106     MacIONVRAMState *nvr;
 107     int nvram_mem_index;
 108     int vga_bios_size, bios_size;
 109     qemu_irq *dummy_irq;
 110     int pic_mem_index, dbdma_mem_index, cuda_mem_index, escc_mem_index;
 111     int ppc_boot_device;
 112     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
 113     void *fw_cfg;
 114     void *dbdma;
 115     uint8_t *vga_bios_ptr;
 116
 117     linux_boot = (kernel_filename != NULL);
 118
 119     /* init CPUs */
 120     if (cpu_model == NULL)
 121         cpu_model = "G4";
 122     for (i = 0; i < smp_cpus; i++) {
 123         env = cpu_init(cpu_model);
 124         if (!env) {
 125             fprintf(stderr, "Unable to find PowerPC CPU definition\n");
 126             exit(1);
 127         }
 128         /* Set time-base frequency to 100 Mhz */
 129         cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);
 130 #if 0
 131         env->osi_call = vga_osi_call;
 132 #endif
 133         qemu_register_reset(&cpu_ppc_reset, env);
 134         envs[i] = env;
 135     }
 136
 137     /* allocate RAM */
 138     ram_offset = qemu_ram_alloc(ram_size);
 139     cpu_register_physical_memory(0, ram_size, ram_offset);
 140
 141     /* allocate and load BIOS */
 142     bios_offset = qemu_ram_alloc(BIOS_SIZE);
 143     if (bios_name == NULL)
 144         bios_name = PROM_FILENAME;
 145     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
 146     cpu_register_physical_memory(PROM_ADDR, BIOS_SIZE, bios_offset | IO_MEM_ROM);
 147
 148     /* Load OpenBIOS (ELF) */
 149     if (filename) {
 150         bios_size = load_elf(filename, 0, NULL, NULL, NULL, 1, ELF_MACHINE, 0);
 151
 152         qemu_free(filename);
 153     } else {
 154         bios_size = -1;
 155     }
 156     if (bios_size < 0 || bios_size > BIOS_SIZE) {
 157         hw_error("qemu: could not load PowerPC bios '%s'\n", bios_name);
 158         exit(1);
 159     }
 160
 161     /* allocate and load VGA BIOS */
 162     vga_bios_offset = qemu_ram_alloc(VGA_BIOS_SIZE);
 163     vga_bios_ptr = qemu_get_ram_ptr(vga_bios_offset);
 164     filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, VGABIOS_FILENAME);
 165     if (filename) {
 166         vga_bios_size = load_image(filename, vga_bios_ptr + 8);
 167         qemu_free(filename);
 168     } else {
 169         vga_bios_size = -1;
 170     }
 171     if (vga_bios_size < 0) {
 172         /* if no bios is present, we can still work */
 173         fprintf(stderr, "qemu: warning: could not load VGA bios '%s'\n",
 174                 VGABIOS_FILENAME);
 175         vga_bios_size = 0;
 176     } else {
 177         /* set a specific header (XXX: find real Apple format for NDRV
 178            drivers) */
 179         vga_bios_ptr[0] = 'N';
 180         vga_bios_ptr[1] = 'D';
 181         vga_bios_ptr[2] = 'R';
 182         vga_bios_ptr[3] = 'V';
 183         cpu_to_be32w((uint32_t *)(vga_bios_ptr + 4), vga_bios_size);
 184         vga_bios_size += 8;
 185
 186         /* Round to page boundary */
 187         vga_bios_size = (vga_bios_size + TARGET_PAGE_SIZE - 1) &
 188             TARGET_PAGE_MASK;
 189     }
 190
 191     if (linux_boot) {
 192         uint64_t lowaddr = 0;
 193         int bswap_needed;
 194
 195 #ifdef BSWAP_NEEDED
 196         bswap_needed = 1;
 197 #else
 198         bswap_needed = 0;
 199 #endif
 200         kernel_base = KERNEL_LOAD_ADDR;
 201
 202         /* Now we can load the kernel. The first step tries to load the kernel
 203            supposing PhysAddr = 0x00000000. If that was wrong the kernel is
 204            loaded again, the new PhysAddr being computed from lowaddr. */
 205         kernel_size = load_elf(kernel_filename, kernel_base, NULL, &lowaddr, NULL,
 206                                1, ELF_MACHINE, 0);
 207         if (kernel_size > 0 && lowaddr != KERNEL_LOAD_ADDR) {
 208             kernel_size = load_elf(kernel_filename, (2 * kernel_base) - lowaddr,
 209                                    NULL, NULL, NULL, 1, ELF_MACHINE, 0);
 210         }
 211         if (kernel_size < 0)
 212             kernel_size = load_aout(kernel_filename, kernel_base,
 213                                     ram_size - kernel_base, bswap_needed,
 214                                     TARGET_PAGE_SIZE);
 215         if (kernel_size < 0)
 216             kernel_size = load_image_targphys(kernel_filename,
 217                                               kernel_base,
 218                                               ram_size - kernel_base);
 219         if (kernel_size < 0) {
 220             hw_error("qemu: could not load kernel '%s'\n", kernel_filename);
 221             exit(1);
 222         }
 223         /* load initrd */
 224         if (initrd_filename) {
 225             initrd_base = INITRD_LOAD_ADDR;
 226             initrd_size = load_image_targphys(initrd_filename, initrd_base,
 227                                               ram_size - initrd_base);
 228             if (initrd_size < 0) {
 229                 hw_error("qemu: could not load initial ram disk '%s'\n",
 230                          initrd_filename);
 231                 exit(1);
 232             }
 233         } else {
 234             initrd_base = 0;
 235             initrd_size = 0;
 236         }
 237         ppc_boot_device = 'm';
 238     } else {
 239         kernel_base = 0;
 240         kernel_size = 0;
 241         initrd_base = 0;
 242         initrd_size = 0;
 243         ppc_boot_device = '\0';
 244         /* We consider that NewWorld PowerMac never have any floppy drive
 245          * For now, OHW cannot boot from the network.
 246          */
 247         for (i = 0; boot_device[i] != '\0'; i++) {
 248             if (boot_device[i] >= 'c' && boot_device[i] <= 'f') {
 249                 ppc_boot_device = boot_device[i];
 250                 break;
 251             }
 252         }
 253         if (ppc_boot_device == '\0') {
 254             fprintf(stderr, "No valid boot device for Mac99 machine\n");
 255             exit(1);
 256         }
 257     }
 258
 259     isa_mem_base = 0x80000000;
 260
 261     /* Register 8 MB of ISA IO space */
 262     isa_mmio_init(0xf2000000, 0x00800000);
 263
 264     /* UniN init */
 265     unin_memory = cpu_register_io_memory(unin_read, unin_write, NULL);
 266     cpu_register_physical_memory(0xf8000000, 0x00001000, unin_memory);
 267
 268     openpic_irqs = qemu_mallocz(smp_cpus * sizeof(qemu_irq *));
 269     openpic_irqs[0] =
 270         qemu_mallocz(smp_cpus * sizeof(qemu_irq) * OPENPIC_OUTPUT_NB);
 271     for (i = 0; i < smp_cpus; i++) {
 272         /* Mac99 IRQ connection between OpenPIC outputs pins
 273          * and PowerPC input pins
 274          */
 275         switch (PPC_INPUT(env)) {
 276         case PPC_FLAGS_INPUT_6xx:
 277             openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB);
 278             openpic_irqs[i][OPENPIC_OUTPUT_INT] =
 279                 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
 280             openpic_irqs[i][OPENPIC_OUTPUT_CINT] =
 281                 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
 282             openpic_irqs[i][OPENPIC_OUTPUT_MCK] =
 283                 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_MCP];
 284             /* Not connected ? */
 285             openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL;
 286             /* Check this */
 287             openpic_irqs[i][OPENPIC_OUTPUT_RESET] =
 288                 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_HRESET];
 289             break;
 290 #if defined(TARGET_PPC64)
 291         case PPC_FLAGS_INPUT_970:
 292             openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB);
 293             openpic_irqs[i][OPENPIC_OUTPUT_INT] =
 294                 ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT];
 295             openpic_irqs[i][OPENPIC_OUTPUT_CINT] =
 296                 ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT];
 297             openpic_irqs[i][OPENPIC_OUTPUT_MCK] =
 298                 ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_MCP];
 299             /* Not connected ? */
 300             openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL;
 301             /* Check this */
 302             openpic_irqs[i][OPENPIC_OUTPUT_RESET] =
 303                 ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_HRESET];
 304             break;
 305 #endif /* defined(TARGET_PPC64) */
 306         default:
 307             hw_error("Bus model not supported on mac99 machine\n");
 308             exit(1);
 309         }
 310     }
 311     pic = openpic_init(NULL, &pic_mem_index, smp_cpus, openpic_irqs, NULL);
 312     pci_bus = pci_pmac_init(pic);
 313     /* init basic PC hardware */
 314     pci_vga_init(pci_bus, vga_bios_offset, vga_bios_size);
 315
 316     /* XXX: suppress that */
 317     dummy_irq = i8259_init(NULL);
 318
 319     escc_mem_index = escc_init(0x80013000, dummy_irq[4], dummy_irq[5],
 320                                serial_hds[0], serial_hds[1], ESCC_CLOCK, 4);
 321
 322     for(i = 0; i < nb_nics; i++)
 323         pci_nic_init_nofail(&nd_table[i], "ne2k_pci", NULL);
 324
 325     if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
 326         fprintf(stderr, "qemu: too many IDE bus\n");
 327         exit(1);
 328     }
 329     for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
 330         hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
 331     }
 332     dbdma = DBDMA_init(&dbdma_mem_index);
 333     pci_cmd646_ide_init(pci_bus, hd, 0);
 334
 335     /* cuda also initialize ADB */
 336     cuda_init(&cuda_mem_index, pic[0x19]);
 337
 338     adb_kbd_init(&adb_bus);
 339     adb_mouse_init(&adb_bus);
 340
 341
 342     macio_init(pci_bus, PCI_DEVICE_ID_APPLE_UNI_N_KEYL, 0, pic_mem_index,
 343                dbdma_mem_index, cuda_mem_index, NULL, 0, NULL,
 344                escc_mem_index);
 345
 346     if (usb_enabled) {
 347         usb_ohci_init_pci(pci_bus, -1);
 348     }
 349
 350     if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
 351         graphic_depth = 15;
 352
 353     /* The NewWorld NVRAM is not located in the MacIO device */
 354     nvr = macio_nvram_init(&nvram_mem_index, 0x2000, 1);
 355     pmac_format_nvram_partition(nvr, 0x2000);
 356     macio_nvram_map(nvr, 0xFFF04000);
 357     /* No PCI init: the BIOS will do it */
 358
 359     fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2);
 360     fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
 361     fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
 362     fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_MAC99);
 363     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
 364     fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
 365     if (kernel_cmdline) {
 366         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
 367         pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
 368     } else {
 369         fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
 370     }
 371     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
 372     fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
 373     fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
 374
 375     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
 376     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
 377     fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
 378
 379     qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
 380 }
 381
 382 static QEMUMachine core99_machine = {
 383     .name = "mac99",
 384     .desc = "Mac99 based PowerMAC",
 385     .init = ppc_core99_init,
 386     .max_cpus = MAX_CPUS,
 387 };
 388
 389 static void core99_machine_init(void)
 390 {
 391     qemu_register_machine(&core99_machine);
 392 }
 393
 394 machine_init(core99_machine_init);