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) 119