hw/sh4/shix.c

   1 /*
   2  * SHIX 2.0 board description
   3  *
   4  * Copyright (c) 2005 Samuel Tardieu
   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    Shix 2.0 board by Alexis Polti, described at
  26    https://web.archive.org/web/20070917001736/perso.enst.fr/~polti/realisations/shix20
  27
  28    More information in target/sh4/README.sh4
  29 */
  30 #include "qemu/osdep.h"
  31 #include "qapi/error.h"
  32 #include "qemu-common.h"
  33 #include "cpu.h"
  34 #include "hw/hw.h"
  35 #include "hw/sh4/sh.h"
  36 #include "sysemu/sysemu.h"
  37 #include "sysemu/qtest.h"
  38 #include "hw/boards.h"
  39 #include "hw/loader.h"
  40 #include "exec/address-spaces.h"
  41 #include "qemu/error-report.h"
  42
  43 #define BIOS_FILENAME "shix_bios.bin"
  44 #define BIOS_ADDRESS 0xA0000000
  45
  46 static void shix_init(MachineState *machine)
  47 {
  48     const char *cpu_model = machine->cpu_model;
  49     int ret;
  50     SuperHCPU *cpu;
  51     struct SH7750State *s;
  52     MemoryRegion *sysmem = get_system_memory();
  53     MemoryRegion *rom = g_new(MemoryRegion, 1);
  54     MemoryRegion *sdram = g_new(MemoryRegion, 2);
  55
  56     if (!cpu_model)
  57         cpu_model = "any";
  58
  59     cpu = cpu_sh4_init(cpu_model);
  60     if (cpu == NULL) {
  61         fprintf(stderr, "Unable to find CPU definition\n");
  62         exit(1);
  63     }
  64
  65     /* Allocate memory space */
  66     memory_region_init_ram(rom, NULL, "shix.rom", 0x4000, &error_fatal);
  67     vmstate_register_ram_global(rom);
  68     memory_region_set_readonly(rom, true);
  69     memory_region_add_subregion(sysmem, 0x00000000, rom);
  70     memory_region_init_ram(&sdram[0], NULL, "shix.sdram1", 0x01000000,
  71                            &error_fatal);
  72     vmstate_register_ram_global(&sdram[0]);
  73     memory_region_add_subregion(sysmem, 0x08000000, &sdram[0]);
  74     memory_region_init_ram(&sdram[1], NULL, "shix.sdram2", 0x01000000,
  75                            &error_fatal);
  76     vmstate_register_ram_global(&sdram[1]);
  77     memory_region_add_subregion(sysmem, 0x0c000000, &sdram[1]);
  78
  79     /* Load BIOS in 0 (and access it through P2, 0xA0000000) */
  80     if (bios_name == NULL)
  81         bios_name = BIOS_FILENAME;
  82     ret = load_image_targphys(bios_name, 0, 0x4000);
  83     if (ret < 0 && !qtest_enabled()) {
  84         error_report("Could not load SHIX bios '%s'", bios_name);
  85         exit(1);
  86     }
  87
  88     /* Register peripherals */
  89     s = sh7750_init(cpu, sysmem);
  90     /* XXXXX Check success */
  91     tc58128_init(s, "shix_linux_nand.bin", NULL);
  92 }
  93
  94 static void shix_machine_init(MachineClass *mc)
  95 {
  96     mc->desc = "shix card";
  97     mc->init = shix_init;
  98     mc->is_default = 1;
  99 }
 100
 101 DEFINE_MACHINE("shix", shix_machine_init)