hw/tricore/triboard.c

   1 /*
   2  * Infineon TriBoard System emulation.
   3  *
   4  * Copyright (c) 2020 Andreas Konopik <andreas.konopik@efs-auto.de>
   5  * Copyright (c) 2020 David Brenken <david.brenken@efs-auto.de>
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "qemu/osdep.h"
  22 #include "qemu/units.h"
  23 #include "qapi/error.h"
  24 #include "hw/qdev-properties.h"
  25 #include "cpu.h"
  26 #include "net/net.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 #include "hw/tricore/triboard.h"
  34 #include "hw/tricore/tc27x_soc.h"
  35
  36 static void tricore_load_kernel(const char *kernel_filename)
  37 {
  38     uint64_t entry;
  39     long kernel_size;
  40     TriCoreCPU *cpu;
  41     CPUTriCoreState *env;
  42
  43     kernel_size = load_elf(kernel_filename, NULL,
  44                            NULL, NULL, &entry, NULL,
  45                            NULL, NULL, 0,
  46                            EM_TRICORE, 1, 0);
  47     if (kernel_size <= 0) {
  48         error_report("no kernel file '%s'", kernel_filename);
  49         exit(1);
  50     }
  51     cpu = TRICORE_CPU(first_cpu);
  52     env = &cpu->env;
  53     env->PC = entry;
  54 }
  55
  56
  57 static void triboard_machine_init(MachineState *machine)
  58 {
  59     TriBoardMachineState *ms = TRIBOARD_MACHINE(machine);
  60     TriBoardMachineClass *amc = TRIBOARD_MACHINE_GET_CLASS(machine);
  61
  62     object_initialize_child(OBJECT(machine), "soc", &ms->tc27x_soc,
  63             amc->soc_name);
  64     sysbus_realize(SYS_BUS_DEVICE(&ms->tc27x_soc), &error_fatal);
  65
  66     if (machine->kernel_filename) {
  67         tricore_load_kernel(machine->kernel_filename);
  68     }
  69 }
  70
  71 static void triboard_machine_tc277d_class_init(ObjectClass *oc,
  72         void *data)
  73 {
  74     MachineClass *mc = MACHINE_CLASS(oc);
  75     TriBoardMachineClass *amc = TRIBOARD_MACHINE_CLASS(oc);
  76
  77     mc->init        = triboard_machine_init;
  78     mc->desc        = "Infineon AURIX TriBoard TC277 (D-Step)";
  79     mc->max_cpus    = 1;
  80     amc->soc_name   = "tc277d-soc";
  81 };
  82
  83 static const TypeInfo triboard_machine_types[] = {
  84     {
  85         .name           = MACHINE_TYPE_NAME("KIT_AURIX_TC277_TRB"),
  86         .parent         = TYPE_TRIBOARD_MACHINE,
  87         .class_init     = triboard_machine_tc277d_class_init,
  88     }, {
  89         .name           = TYPE_TRIBOARD_MACHINE,
  90         .parent         = TYPE_MACHINE,
  91         .instance_size  = sizeof(TriBoardMachineState),
  92         .class_size     = sizeof(TriBoardMachineClass),
  93         .abstract       = true,
  94     },
  95 };
  96
  97 DEFINE_TYPES(triboard_machine_types)