hw/tricore/tricore_testboard.c

   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
  40 static struct tricore_boot_info tricoretb_binfo;
  41
  42 static 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
  60 static 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
 103 static void tricoreboard_init(MachineState *machine)
 104 {
 105     tricore_testboard_init(machine, 0x183);
 106 }
 107
 108 static 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
 116 DEFINE_MACHINE("tricore_testboard", ttb_machine_init)