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 "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
  37 static struct tricore_boot_info tricoretb_binfo;
  38
  39 static 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                            ELF_MACHINE, 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
  57 static 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
 113 static void tricoreboard_init(MachineState *machine)
 114 {
 115     tricore_testboard_init(machine, 0x183);
 116 }
 117
 118 static 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
 125 DEFINE_MACHINE("tricore_testboard", ttb_machine_init)