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 "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
  36 static struct tricore_boot_info tricoretb_binfo;
  37
  38 static 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, 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
  56 static 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
  99 static void tricoreboard_init(MachineState *machine)
 100 {
 101     tricore_testboard_init(machine, 0x183);
 102 }
 103
 104 static void ttb_machine_init(MachineClass *mc)
 105 {
 106     mc->desc = "a minimal TriCore board";
 107     mc->init = tricoreboard_init;
 108     mc->is_default = 0;
 109     mc->default_cpu_type = TRICORE_CPU_TYPE_NAME("tc1796");
 110 }
 111
 112 DEFINE_MACHINE("tricore_testboard", ttb_machine_init)