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