hw/mips_pica61.c

   1 /*
   2  * QEMU Acer Pica Machine support
   3  *
   4  * Copyright (c) 2007 Hervé Poussineau
   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 "hw.h"
  26 #include "mips.h"
  27 #include "isa.h"
  28 #include "pc.h"
  29 #include "fdc.h"
  30 #include "sysemu.h"
  31 #include "boards.h"
  32
  33 #ifdef TARGET_WORDS_BIGENDIAN
  34 #define BIOS_FILENAME "mips_bios.bin"
  35 #else
  36 #define BIOS_FILENAME "mipsel_bios.bin"
  37 #endif
  38
  39 #ifdef TARGET_MIPS64
  40 #define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffULL)
  41 #else
  42 #define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffU)
  43 #endif
  44
  45 #define VIRT_TO_PHYS_ADDEND (-((int64_t)(int32_t)0x80000000))
  46
  47 #define MAX_IDE_BUS 2
  48 #define MAX_FD 2
  49
  50 static const int ide_iobase[2] = { 0x1f0, 0x170 };
  51 static const int ide_iobase2[2] = { 0x3f6, 0x376 };
  52 static const int ide_irq[2] = { 14, 15 };
  53
  54 static uint32_t serial_base[MAX_SERIAL_PORTS] = { 0x80006000, 0x80007000 };
  55 static int serial_irq[MAX_SERIAL_PORTS] = { 8, 9 };
  56
  57 extern FILE *logfile;
  58
  59 static void main_cpu_reset(void *opaque)
  60 {
  61     CPUState *env = opaque;
  62     cpu_reset(env);
  63 }
  64
  65 static
  66 void mips_pica61_init (int ram_size, int vga_ram_size,
  67                        const char *boot_device, DisplayState *ds,
  68                     const char *kernel_filename, const char *kernel_cmdline,
  69                     const char *initrd_filename, const char *cpu_model)
  70 {
  71     char buf[1024];
  72     unsigned long bios_offset;
  73     int bios_size;
  74     CPUState *env;
  75     int i;
  76     int available_ram;
  77     qemu_irq *i8259;
  78     int index;
  79     BlockDriverState *fd[MAX_FD];
  80
  81     /* init CPUs */
  82     if (cpu_model == NULL) {
  83 #ifdef TARGET_MIPS64
  84         cpu_model = "R4000";
  85 #else
  86         /* FIXME: All wrong, this maybe should be R3000 for the older PICAs. */
  87         cpu_model = "24Kf";
  88 #endif
  89     }
  90     env = cpu_init(cpu_model);
  91     if (!env) {
  92         fprintf(stderr, "Unable to find CPU definition\n");
  93         exit(1);
  94     }
  95     register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
  96     qemu_register_reset(main_cpu_reset, env);
  97
  98     /* allocate RAM (limited to 256 MB) */
  99     if (ram_size < 256 * 1024 * 1024)
 100         available_ram = ram_size;
 101     else
 102         available_ram = 256 * 1024 * 1024;
 103     cpu_register_physical_memory(0, available_ram, IO_MEM_RAM);
 104
 105     /* load a BIOS image */
 106     bios_offset = ram_size + vga_ram_size;
 107     if (bios_name == NULL)
 108         bios_name = BIOS_FILENAME;
 109     snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
 110     bios_size = load_image(buf, phys_ram_base + bios_offset);
 111     if ((bios_size <= 0) || (bios_size > BIOS_SIZE)) {
 112         /* fatal */
 113         fprintf(stderr, "qemu: Error, could not load MIPS bios '%s'\n",
 114                 buf);
 115         exit(1);
 116     }
 117     cpu_register_physical_memory(0x1fc00000,
 118                                      BIOS_SIZE, bios_offset | IO_MEM_ROM);
 119
 120     /* Device map
 121      *
 122      * addr 0xe0004000: mc146818
 123      * addr 0xe0005000 intr 6: ps2 keyboard
 124      * addr 0xe0005000 intr 7: ps2 mouse
 125      * addr 0xe0006000 intr 8: ns16550a,
 126      * addr 0xe0007000 intr 9: ns16550a
 127      * isa_io_base 0xe2000000 isa_mem_base 0xe3000000
 128      */
 129
 130     /* Init CPU internal devices */
 131     cpu_mips_irq_init_cpu(env);
 132     cpu_mips_clock_init(env);
 133     cpu_mips_irqctrl_init();
 134
 135     /* Register 64 KB of ISA IO space at 0x10000000 */
 136     isa_mmio_init(0x10000000, 0x00010000);
 137     isa_mem_base = 0x11000000;
 138
 139     /* PC style IRQ (i8259/i8254) and DMA (i8257) */
 140     /* The PIC is attached to the MIPS CPU INT0 pin */
 141     i8259 = i8259_init(env->irq[2]);
 142     rtc_mm_init(0x80004070, 1, i8259[14]);
 143     pit_init(0x40, 0);
 144
 145     /* Keyboard (i8042) */
 146     i8042_mm_init(i8259[6], i8259[7], 0x80005060, 0);
 147
 148     /* IDE controller */
 149
 150     if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
 151         fprintf(stderr, "qemu: too many IDE bus\n");
 152         exit(1);
 153     }
 154
 155     for(i = 0; i < MAX_IDE_BUS; i++) {
 156         int hd0, hd1;
 157         hd0 = drive_get_index(IF_IDE, i, 0);
 158         hd1 = drive_get_index(IF_IDE, i, 1);
 159         isa_ide_init(ide_iobase[i], ide_iobase2[i], i8259[ide_irq[i]],
 160                      hd0 == -1 ? NULL : drives_table[hd0].bdrv,
 161                      hd1 == -1 ? NULL : drives_table[hd1].bdrv);
 162     }
 163
 164     /* Network controller */
 165     /* FIXME: missing NS SONIC DP83932 */
 166
 167     /* SCSI adapter */
 168     /* FIXME: missing NCR 53C94 */
 169
 170     /* ISA devices (floppy, serial, parallel) */
 171
 172     for (i = 0; i < MAX_FD; i++) {
 173         index = drive_get_index(IF_FLOPPY, 0, i);
 174         if (index == -1)
 175             fd[i] = NULL;
 176         else
 177             fd[i] = drives_table[index].bdrv;
 178     }
 179     fdctrl_init(i8259[1], 1, 1, 0x80003000, fd);
 180     for(i = 0; i < MAX_SERIAL_PORTS; i++) {
 181         if (serial_hds[i]) {
 182             serial_mm_init(serial_base[i], 0, i8259[serial_irq[i]], serial_hds[i], 1);
 183         }
 184     }
 185     /* Parallel port */
 186     if (parallel_hds[0]) parallel_mm_init(0x80008000, 0, i8259[1], parallel_hds[0]);
 187
 188     /* Sound card */
 189     /* FIXME: missing Jazz sound, IRQ 18 */
 190
 191     /* LED indicator */
 192     /* FIXME: missing LED indicator */
 193
 194     /* NVRAM */
 195     ds1225y_init(0x80009000, "nvram");
 196
 197     /* Video card */
 198     /* FIXME: This card is not the real one which was in the original PICA,
 199      * but let's do with what Qemu currenly emulates... */
 200     isa_vga_mm_init(ds, phys_ram_base + ram_size, ram_size, vga_ram_size,
 201                     0x40000000, 0x60000000, 0);
 202
 203     /* LED indicator */
 204     jazz_led_init(ds, 0x8000f000);
 205 }
 206
 207 QEMUMachine mips_pica61_machine = {
 208     "pica61",
 209     "Acer Pica 61",
 210     mips_pica61_init,
 211 };