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 "qemu/error-report.h" 31 32 33 /* Board init. */ 34 35 static struct tricore_boot_info tricoretb_binfo; 36 37 static void tricore_load_kernel(CPUTriCoreState *env) 38 { 39 uint64_t entry; 40 long kernel_size; 41 42 kernel_size = load_elf(tricoretb_binfo.kernel_filename, NULL, 43 NULL, NULL, &entry, NULL, 44 NULL, NULL, 0, 45 EM_TRICORE, 1, 0); 46 if (kernel_size <= 0) { 47 error_report("no kernel file '%s'", 48 tricoretb_binfo.kernel_filename); 49 exit(1); 50 } 51 env->PC = entry; 52 53 } 54 55 static void tricore_testboard_init(MachineState *machine, int board_id) 56 { 57 TriCoreCPU *cpu; 58 CPUTriCoreState *env; 59 60 MemoryRegion *sysmem = get_system_memory(); 61 MemoryRegion *ext_cram = g_new(MemoryRegion, 1); 62 MemoryRegion *ext_dram = g_new(MemoryRegion, 1); 63 MemoryRegion *int_cram = g_new(MemoryRegion, 1); 64 MemoryRegion *int_dram = g_new(MemoryRegion, 1); 65 MemoryRegion *pcp_data = g_new(MemoryRegion, 1); 66 MemoryRegion *pcp_text = g_new(MemoryRegion, 1); 67 68 cpu = TRICORE_CPU(cpu_create(machine->cpu_type)); 69 env = &cpu->env; 70 memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram", 71 2 * MiB, &error_fatal); 72 memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram", 73 4 * MiB, &error_fatal); 74 memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48 * KiB, 75 &error_fatal); 76 memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48 * KiB, 77 &error_fatal); 78 memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram", 79 16 * KiB, &error_fatal); 80 memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram", 81 32 * KiB, &error_fatal); 82 83 memory_region_add_subregion(sysmem, 0x80000000, ext_cram); 84 memory_region_add_subregion(sysmem, 0xa1000000, ext_dram); 85 memory_region_add_subregion(sysmem, 0xd4000000, int_cram); 86 memory_region_add_subregion(sysmem, 0xd0000000, int_dram); 87 memory_region_add_subregion(sysmem, 0xf0050000, pcp_data); 88 memory_region_add_subregion(sysmem, 0xf0060000, pcp_text); 89 90 tricoretb_binfo.ram_size = machine->ram_size; 91 tricoretb_binfo.kernel_filename = machine->kernel_filename; 92 93 if (machine->kernel_filename) { 94 tricore_load_kernel(env); 95 } 96 } 97 98 static void tricoreboard_init(MachineState *machine) 99 { 100 tricore_testboard_init(machine, 0x183); 101 } 102 103 static void ttb_machine_init(MachineClass *mc) 104 { 105 mc->desc = "a minimal TriCore board"; 106 mc->init = tricoreboard_init; 107 mc->default_cpu_type = TRICORE_CPU_TYPE_NAME("tc1796"); 108 } 109 110 DEFINE_MACHINE("tricore_testboard", ttb_machine_init) 111