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 "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
  41 static struct tricore_boot_info tricoretb_binfo;
  42
  43 static 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("qemu: no kernel file '%s'",
  54                 tricoretb_binfo.kernel_filename);
  55         exit(1);
  56     }
  57     env->PC = entry;
  58
  59 }
  60
  61 static 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", 2*1024*1024,
  84                            &error_fatal);
  85     vmstate_register_ram_global(ext_cram);
  86     memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram", 4*1024*1024,
  87                            &error_fatal);
  88     vmstate_register_ram_global(ext_dram);
  89     memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48*1024,
  90                            &error_fatal);
  91     vmstate_register_ram_global(int_cram);
  92     memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48*1024,
  93                            &error_fatal);
  94     vmstate_register_ram_global(int_dram);
  95     memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram", 16*1024,
  96                            &error_fatal);
  97     vmstate_register_ram_global(pcp_data);
  98     memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram", 32*1024,
  99                            &error_fatal);
 100     vmstate_register_ram_global(pcp_text);
 101
 102     memory_region_add_subregion(sysmem, 0x80000000, ext_cram);
 103     memory_region_add_subregion(sysmem, 0xa1000000, ext_dram);
 104     memory_region_add_subregion(sysmem, 0xd4000000, int_cram);
 105     memory_region_add_subregion(sysmem, 0xd0000000, int_dram);
 106     memory_region_add_subregion(sysmem, 0xf0050000, pcp_data);
 107     memory_region_add_subregion(sysmem, 0xf0060000, pcp_text);
 108
 109     tricoretb_binfo.ram_size = machine->ram_size;
 110     tricoretb_binfo.kernel_filename = machine->kernel_filename;
 111
 112     if (machine->kernel_filename) {
 113         tricore_load_kernel(env);
 114     }
 115 }
 116
 117 static void tricoreboard_init(MachineState *machine)
 118 {
 119     tricore_testboard_init(machine, 0x183);
 120 }
 121
 122 static void ttb_machine_init(MachineClass *mc)
 123 {
 124     mc->desc = "a minimal TriCore board";
 125     mc->init = tricoreboard_init;
 126     mc->is_default = 0;
 127 }
 128
 129 DEFINE_MACHINE("tricore_testboard", ttb_machine_init)