qemu

FORK: QEMU emulator
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tricore_testboard.c (4088B)

      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 2.1 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 "elf.h"
     29 #include "hw/tricore/tricore.h"
     30 #include "hw/tricore/tricore_testdevice.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, 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     TriCoreTestDeviceState *test_dev;
     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     cpu = TRICORE_CPU(cpu_create(machine->cpu_type));
     71     env = &cpu->env;
     72     memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram",
     73                            2 * MiB, &error_fatal);
     74     memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram",
     75                            4 * MiB, &error_fatal);
     76     memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48 * KiB,
     77                            &error_fatal);
     78     memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48 * KiB,
     79                            &error_fatal);
     80     memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram",
     81                            16 * KiB, &error_fatal);
     82     memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram",
     83                            32 * KiB, &error_fatal);
     84 
     85     memory_region_add_subregion(sysmem, 0x80000000, ext_cram);
     86     memory_region_add_subregion(sysmem, 0xa1000000, ext_dram);
     87     memory_region_add_subregion(sysmem, 0xd4000000, int_cram);
     88     memory_region_add_subregion(sysmem, 0xd0000000, int_dram);
     89     memory_region_add_subregion(sysmem, 0xf0050000, pcp_data);
     90     memory_region_add_subregion(sysmem, 0xf0060000, pcp_text);
     91 
     92     test_dev = g_new(TriCoreTestDeviceState, 1);
     93     object_initialize(test_dev, sizeof(TriCoreTestDeviceState),
     94                       TYPE_TRICORE_TESTDEVICE);
     95     memory_region_add_subregion(sysmem, 0xf0000000, &test_dev->iomem);
     96 
     97 
     98     tricoretb_binfo.ram_size = machine->ram_size;
     99     tricoretb_binfo.kernel_filename = machine->kernel_filename;
    100 
    101     if (machine->kernel_filename) {
    102         tricore_load_kernel(env);
    103     }
    104 }
    105 
    106 static void tricoreboard_init(MachineState *machine)
    107 {
    108     tricore_testboard_init(machine, 0x183);
    109 }
    110 
    111 static void ttb_machine_init(MachineClass *mc)
    112 {
    113     mc->desc = "a minimal TriCore board";
    114     mc->init = tricoreboard_init;
    115     mc->default_cpu_type = TRICORE_CPU_TYPE_NAME("tc1796");
    116 }
    117 
    118 DEFINE_MACHINE("tricore_testboard", ttb_machine_init)