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 "hw/hw.h" 23 #include "hw/devices.h" 24 #include "net/net.h" 25 #include "sysemu/sysemu.h" 26 #include "hw/boards.h" 27 #include "hw/loader.h" 28 #include "sysemu/block-backend.h" 29 #include "exec/address-spaces.h" 30 #include "hw/block/flash.h" 31 #include "elf.h" 32 #include "hw/tricore/tricore.h" 33 #include "qemu/error-report.h" 34 35 36 /* Board init. */ 37 38 static struct tricore_boot_info tricoretb_binfo; 39 40 static void tricore_load_kernel(CPUTriCoreState *env) 41 { 42 uint64_t entry; 43 long kernel_size; 44 45 kernel_size = load_elf(tricoretb_binfo.kernel_filename, NULL, 46 NULL, (uint64_t *)&entry, NULL, 47 NULL, 0, 48 EM_TRICORE, 1); 49 if (kernel_size <= 0) { 50 error_report("qemu: no kernel file '%s'", 51 tricoretb_binfo.kernel_filename); 52 exit(1); 53 } 54 env->PC = entry; 55 56 } 57 58 static void tricore_testboard_init(MachineState *machine, int board_id) 59 { 60 TriCoreCPU *cpu; 61 CPUTriCoreState *env; 62 63 MemoryRegion *sysmem = get_system_memory(); 64 MemoryRegion *ext_cram = g_new(MemoryRegion, 1); 65 MemoryRegion *ext_dram = g_new(MemoryRegion, 1); 66 MemoryRegion *int_cram = g_new(MemoryRegion, 1); 67 MemoryRegion *int_dram = g_new(MemoryRegion, 1); 68 MemoryRegion *pcp_data = g_new(MemoryRegion, 1); 69 MemoryRegion *pcp_text = g_new(MemoryRegion, 1); 70 71 if (!machine->cpu_model) { 72 machine->cpu_model = "tc1796"; 73 } 74 cpu = cpu_tricore_init(machine->cpu_model); 75 if (!cpu) { 76 error_report("Unable to find CPU definition"); 77 exit(1); 78 } 79 env = &cpu->env; 80 memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram", 2*1024*1024, 81 &error_fatal); 82 vmstate_register_ram_global(ext_cram); 83 memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram", 4*1024*1024, 84 &error_fatal); 85 vmstate_register_ram_global(ext_dram); 86 memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48*1024, 87 &error_fatal); 88 vmstate_register_ram_global(int_cram); 89 memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48*1024, 90 &error_fatal); 91 vmstate_register_ram_global(int_dram); 92 memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram", 16*1024, 93 &error_fatal); 94 vmstate_register_ram_global(pcp_data); 95 memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram", 32*1024, 96 &error_fatal); 97 vmstate_register_ram_global(pcp_text); 98 99 memory_region_add_subregion(sysmem, 0x80000000, ext_cram); 100 memory_region_add_subregion(sysmem, 0xa1000000, ext_dram); 101 memory_region_add_subregion(sysmem, 0xd4000000, int_cram); 102 memory_region_add_subregion(sysmem, 0xd0000000, int_dram); 103 memory_region_add_subregion(sysmem, 0xf0050000, pcp_data); 104 memory_region_add_subregion(sysmem, 0xf0060000, pcp_text); 105 106 tricoretb_binfo.ram_size = machine->ram_size; 107 tricoretb_binfo.kernel_filename = machine->kernel_filename; 108 109 if (machine->kernel_filename) { 110 tricore_load_kernel(env); 111 } 112 } 113 114 static void tricoreboard_init(MachineState *machine) 115 { 116 tricore_testboard_init(machine, 0x183); 117 } 118 119 static void ttb_machine_init(MachineClass *mc) 120 { 121 mc->desc = "a minimal TriCore board"; 122 mc->init = tricoreboard_init; 123 mc->is_default = 0; 124 } 125 126 DEFINE_MACHINE("tricore_testboard", ttb_machine_init) 127