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 "hw/hw.h"
  22#include "hw/devices.h"
  23#include "net/net.h"
  24#include "sysemu/sysemu.h"
  25#include "hw/boards.h"
  26#include "hw/loader.h"
  27#include "sysemu/block-backend.h"
  28#include "exec/address-spaces.h"
  29#include "hw/block/flash.h"
  30#include "elf.h"
  31#include "hw/tricore/tricore.h"
  32#include "qemu/error-report.h"
  33
  34
  35/* Board init.  */
  36
  37static struct tricore_boot_info tricoretb_binfo;
  38
  39static void tricore_load_kernel(CPUTriCoreState *env)
  40{
  41    uint64_t entry;
  42    long kernel_size;
  43
  44    kernel_size = load_elf(tricoretb_binfo.kernel_filename, NULL,
  45                           NULL, (uint64_t *)&entry, NULL,
  46                           NULL, 0,
  47                           EM_TRICORE, 1);
  48    if (kernel_size <= 0) {
  49        error_report("qemu: no kernel file '%s'",
  50                tricoretb_binfo.kernel_filename);
  51        exit(1);
  52    }
  53    env->PC = entry;
  54
  55}
  56
  57static void tricore_testboard_init(MachineState *machine, int board_id)
  58{
  59    TriCoreCPU *cpu;
  60    CPUTriCoreState *env;
  61
  62    MemoryRegion *sysmem = get_system_memory();
  63    MemoryRegion *ext_cram = g_new(MemoryRegion, 1);
  64    MemoryRegion *ext_dram = g_new(MemoryRegion, 1);
  65    MemoryRegion *int_cram = g_new(MemoryRegion, 1);
  66    MemoryRegion *int_dram = g_new(MemoryRegion, 1);
  67    MemoryRegion *pcp_data = g_new(MemoryRegion, 1);
  68    MemoryRegion *pcp_text = g_new(MemoryRegion, 1);
  69
  70    if (!machine->cpu_model) {
  71        machine->cpu_model = "tc1796";
  72    }
  73    cpu = cpu_tricore_init(machine->cpu_model);
  74    if (!cpu) {
  75        error_report("Unable to find CPU definition");
  76        exit(1);
  77    }
  78    env = &cpu->env;
  79    memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram", 2*1024*1024,
  80                           &error_fatal);
  81    vmstate_register_ram_global(ext_cram);
  82    memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram", 4*1024*1024,
  83                           &error_fatal);
  84    vmstate_register_ram_global(ext_dram);
  85    memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48*1024,
  86                           &error_fatal);
  87    vmstate_register_ram_global(int_cram);
  88    memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48*1024,
  89                           &error_fatal);
  90    vmstate_register_ram_global(int_dram);
  91    memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram", 16*1024,
  92                           &error_fatal);
  93    vmstate_register_ram_global(pcp_data);
  94    memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram", 32*1024,
  95                           &error_fatal);
  96    vmstate_register_ram_global(pcp_text);
  97
  98    memory_region_add_subregion(sysmem, 0x80000000, ext_cram);
  99    memory_region_add_subregion(sysmem, 0xa1000000, ext_dram);
 100    memory_region_add_subregion(sysmem, 0xd4000000, int_cram);
 101    memory_region_add_subregion(sysmem, 0xd0000000, int_dram);
 102    memory_region_add_subregion(sysmem, 0xf0050000, pcp_data);
 103    memory_region_add_subregion(sysmem, 0xf0060000, pcp_text);
 104
 105    tricoretb_binfo.ram_size = machine->ram_size;
 106    tricoretb_binfo.kernel_filename = machine->kernel_filename;
 107
 108    if (machine->kernel_filename) {
 109        tricore_load_kernel(env);
 110    }
 111}
 112
 113static void tricoreboard_init(MachineState *machine)
 114{
 115    tricore_testboard_init(machine, 0x183);
 116}
 117
 118static void ttb_machine_init(MachineClass *mc)
 119{
 120    mc->desc = "a minimal TriCore board";
 121    mc->init = tricoreboard_init;
 122    mc->is_default = 0;
 123}
 124
 125DEFINE_MACHINE("tricore_testboard", ttb_machine_init)
 126