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