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 "cpu.h"
  33 #include "hw/sh4/sh.h"
  34 #include "sysemu/qtest.h"
  35 #include "hw/boards.h"
  36 #include "hw/loader.h"
  37 #include "qemu/error-report.h"
  38
  39 #define BIOS_FILENAME "shix_bios.bin"
  40 #define BIOS_ADDRESS 0xA0000000
  41
  42 static void shix_init(MachineState *machine)
  43 {
  44     int ret;
  45     SuperHCPU *cpu;
  46     struct SH7750State *s;
  47     MemoryRegion *sysmem = get_system_memory();
  48     MemoryRegion *rom = g_new(MemoryRegion, 1);
  49     MemoryRegion *sdram = g_new(MemoryRegion, 2);
  50     const char *bios_name = machine->firmware ?: BIOS_FILENAME;
  51
  52     cpu = SUPERH_CPU(cpu_create(machine->cpu_type));
  53
  54     /* Allocate memory space */
  55     memory_region_init_rom(rom, NULL, "shix.rom", 0x4000, &error_fatal);
  56     memory_region_add_subregion(sysmem, 0x00000000, rom);
  57     memory_region_init_ram(&sdram[0], NULL, "shix.sdram1", 0x01000000,
  58                            &error_fatal);
  59     memory_region_add_subregion(sysmem, 0x08000000, &sdram[0]);
  60     memory_region_init_ram(&sdram[1], NULL, "shix.sdram2", 0x01000000,
  61                            &error_fatal);
  62     memory_region_add_subregion(sysmem, 0x0c000000, &sdram[1]);
  63
  64     /* Load BIOS in 0 (and access it through P2, 0xA0000000) */
  65     ret = load_image_targphys(bios_name, 0, 0x4000);
  66     if (ret < 0 && !qtest_enabled()) {
  67         error_report("Could not load SHIX bios '%s'", bios_name);
  68         exit(1);
  69     }
  70
  71     /* Register peripherals */
  72     s = sh7750_init(cpu, sysmem);
  73     /* XXXXX Check success */
  74     tc58128_init(s, "shix_linux_nand.bin", NULL);
  75 }
  76
  77 static void shix_machine_init(MachineClass *mc)
  78 {
  79     mc->desc = "shix card";
  80     mc->init = shix_init;
  81     mc->is_default = true;
  82     mc->default_cpu_type = TYPE_SH7750R_CPU;
  83 }
  84
  85 DEFINE_MACHINE("shix", shix_machine_init)