LXR qemu/hw/tricore/tricore

   1/*
   2 * TriCore Baseboard System emulation.
   3 *
   4 * Copyright (c) 2013-2014 Bastian Koppelmann C-Lab/University Paderborn
   5 *
   6 * This library is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU Lesser General Public
   8 * License as published by the Free Software Foundation; either
   9 * version 2 of the License, or (at your option) any later version.
  10 *
  11 * This library is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 * Lesser General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU Lesser General Public
  17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20
  21#include "qemu/osdep.h"
  22#include "qemu/units.h"
  23#include "qapi/error.h"
  24#include "qemu-common.h"
  25#include "cpu.h"
  26#include "hw/hw.h"
  27#include "hw/devices.h"
  28#include "net/net.h"
  29#include "sysemu/sysemu.h"
  30#include "hw/boards.h"
  31#include "hw/loader.h"
  32#include "exec/address-spaces.h"
  33#include "elf.h"
  34#include "hw/tricore/tricore.h"
  35#include "qemu/error-report.h"
  36
  37
  38/* Board init.  */
  39
  40static struct tricore_boot_info tricoretb_binfo;
  41
  42static void tricore_load_kernel(CPUTriCoreState *env)
  43{
  44    uint64_t entry;
  45    long kernel_size;
  46
  47    kernel_size = load_elf(tricoretb_binfo.kernel_filename, NULL,
  48                           NULL, &entry, NULL,
  49                           NULL, 0,
  50                           EM_TRICORE, 1, 0);
  51    if (kernel_size <= 0) {
  52        error_report("no kernel file '%s'",
  53                tricoretb_binfo.kernel_filename);
  54        exit(1);
  55    }
  56    env->PC = entry;
  57
  58}
  59
  60static void tricore_testboard_init(MachineState *machine, int board_id)
  61{
  62    TriCoreCPU *cpu;
  63    CPUTriCoreState *env;
  64
  65    MemoryRegion *sysmem = get_system_memory();
  66    MemoryRegion *ext_cram = g_new(MemoryRegion, 1);
  67    MemoryRegion *ext_dram = g_new(MemoryRegion, 1);
  68    MemoryRegion *int_cram = g_new(MemoryRegion, 1);
  69    MemoryRegion *int_dram = g_new(MemoryRegion, 1);
  70    MemoryRegion *pcp_data = g_new(MemoryRegion, 1);
  71    MemoryRegion *pcp_text = g_new(MemoryRegion, 1);
  72
  73    cpu = TRICORE_CPU(cpu_create(machine->cpu_type));
  74    env = &cpu->env;
  75    memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram",
  76                           2 * MiB, &error_fatal);
  77    memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram",
  78                           4 * MiB, &error_fatal);
  79    memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48 * KiB,
  80                           &error_fatal);
  81    memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48 * KiB,
  82                           &error_fatal);
  83    memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram",
  84                           16 * KiB, &error_fatal);
  85    memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram",
  86                           32 * KiB, &error_fatal);
  87
  88    memory_region_add_subregion(sysmem, 0x80000000, ext_cram);
  89    memory_region_add_subregion(sysmem, 0xa1000000, ext_dram);
  90    memory_region_add_subregion(sysmem, 0xd4000000, int_cram);
  91    memory_region_add_subregion(sysmem, 0xd0000000, int_dram);
  92    memory_region_add_subregion(sysmem, 0xf0050000, pcp_data);
  93    memory_region_add_subregion(sysmem, 0xf0060000, pcp_text);
  94
  95    tricoretb_binfo.ram_size = machine->ram_size;
  96    tricoretb_binfo.kernel_filename = machine->kernel_filename;
  97
  98    if (machine->kernel_filename) {
  99        tricore_load_kernel(env);
 100    }
 101}
 102
 103static void tricoreboard_init(MachineState *machine)
 104{
 105    tricore_testboard_init(machine, 0x183);
 106}
 107
 108static void ttb_machine_init(MachineClass *mc)
 109{
 110    mc->desc = "a minimal TriCore board";
 111    mc->init = tricoreboard_init;
 112    mc->is_default = 0;
 113    mc->default_cpu_type = TRICORE_CPU_TYPE_NAME("tc1796");
 114}
 115
 116DEFINE_MACHINE("tricore_testboard", ttb_machine_init)
 117