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 "cpu.h"
  25#include "net/net.h"
  26#include "hw/boards.h"
  27#include "hw/loader.h"
  28#include "exec/address-spaces.h"
  29#include "elf.h"
  30#include "hw/tricore/tricore.h"
  31#include "qemu/error-report.h"
  32
  33
  34/* Board init.  */
  35
  36static struct tricore_boot_info tricoretb_binfo;
  37
  38static void tricore_load_kernel(CPUTriCoreState *env)
  39{
  40    uint64_t entry;
  41    long kernel_size;
  42
  43    kernel_size = load_elf(tricoretb_binfo.kernel_filename, NULL,
  44                           NULL, NULL, &entry, NULL,
  45                           NULL, NULL, 0,
  46                           EM_TRICORE, 1, 0);
  47    if (kernel_size <= 0) {
  48        error_report("no kernel file '%s'",
  49                tricoretb_binfo.kernel_filename);
  50        exit(1);
  51    }
  52    env->PC = entry;
  53
  54}
  55
  56static void tricore_testboard_init(MachineState *machine, int board_id)
  57{
  58    TriCoreCPU *cpu;
  59    CPUTriCoreState *env;
  60
  61    MemoryRegion *sysmem = get_system_memory();
  62    MemoryRegion *ext_cram = g_new(MemoryRegion, 1);
  63    MemoryRegion *ext_dram = g_new(MemoryRegion, 1);
  64    MemoryRegion *int_cram = g_new(MemoryRegion, 1);
  65    MemoryRegion *int_dram = g_new(MemoryRegion, 1);
  66    MemoryRegion *pcp_data = g_new(MemoryRegion, 1);
  67    MemoryRegion *pcp_text = g_new(MemoryRegion, 1);
  68
  69    cpu = TRICORE_CPU(cpu_create(machine->cpu_type));
  70    env = &cpu->env;
  71    memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram",
  72                           2 * MiB, &error_fatal);
  73    memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram",
  74                           4 * MiB, &error_fatal);
  75    memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48 * KiB,
  76                           &error_fatal);
  77    memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48 * KiB,
  78                           &error_fatal);
  79    memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram",
  80                           16 * KiB, &error_fatal);
  81    memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram",
  82                           32 * KiB, &error_fatal);
  83
  84    memory_region_add_subregion(sysmem, 0x80000000, ext_cram);
  85    memory_region_add_subregion(sysmem, 0xa1000000, ext_dram);
  86    memory_region_add_subregion(sysmem, 0xd4000000, int_cram);
  87    memory_region_add_subregion(sysmem, 0xd0000000, int_dram);
  88    memory_region_add_subregion(sysmem, 0xf0050000, pcp_data);
  89    memory_region_add_subregion(sysmem, 0xf0060000, pcp_text);
  90
  91    tricoretb_binfo.ram_size = machine->ram_size;
  92    tricoretb_binfo.kernel_filename = machine->kernel_filename;
  93
  94    if (machine->kernel_filename) {
  95        tricore_load_kernel(env);
  96    }
  97}
  98
  99static void tricoreboard_init(MachineState *machine)
 100{
 101    tricore_testboard_init(machine, 0x183);
 102}
 103
 104static void ttb_machine_init(MachineClass *mc)
 105{
 106    mc->desc = "a minimal TriCore board";
 107    mc->init = tricoreboard_init;
 108    mc->default_cpu_type = TRICORE_CPU_TYPE_NAME("tc1796");
 109}
 110
 111DEFINE_MACHINE("tricore_testboard", ttb_machine_init)
 112