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