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