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 "qapi/error.h" 23 #include "hw/hw.h" 24 #include "hw/devices.h" 25 #include "net/net.h" 26 #include "sysemu/sysemu.h" 27 #include "hw/boards.h" 28 #include "hw/loader.h" 29 #include "sysemu/block-backend.h" 30 #include "exec/address-spaces.h" 31 #include "hw/block/flash.h" 32 #include "elf.h" 33 #include "hw/tricore/tricore.h" 34 #include "qemu/error-report.h" 35 36 37 /* Board init. */ 38 39 static struct tricore_boot_info tricoretb_binfo; 40 41 static void tricore_load_kernel(CPUTriCoreState *env) 42 { 43 uint64_t entry; 44 long kernel_size; 45 46 kernel_size = load_elf(tricoretb_binfo.kernel_filename, NULL, 47 NULL, (uint64_t *)&entry, NULL, 48 NULL, 0, 49 EM_TRICORE, 1, 0); 50 if (kernel_size <= 0) { 51 error_report("qemu: no kernel file '%s'", 52 tricoretb_binfo.kernel_filename); 53 exit(1); 54 } 55 env->PC = entry; 56 57 } 58 59 static void tricore_testboard_init(MachineState *machine, int board_id) 60 { 61 TriCoreCPU *cpu; 62 CPUTriCoreState *env; 63 64 MemoryRegion *sysmem = get_system_memory(); 65 MemoryRegion *ext_cram = g_new(MemoryRegion, 1); 66 MemoryRegion *ext_dram = g_new(MemoryRegion, 1); 67 MemoryRegion *int_cram = g_new(MemoryRegion, 1); 68 MemoryRegion *int_dram = g_new(MemoryRegion, 1); 69 MemoryRegion *pcp_data = g_new(MemoryRegion, 1); 70 MemoryRegion *pcp_text = g_new(MemoryRegion, 1); 71 72 if (!machine->cpu_model) { 73 machine->cpu_model = "tc1796"; 74 } 75 cpu = cpu_tricore_init(machine->cpu_model); 76 if (!cpu) { 77 error_report("Unable to find CPU definition"); 78 exit(1); 79 } 80 env = &cpu->env; 81 memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram", 2*1024*1024, 82 &error_fatal); 83 vmstate_register_ram_global(ext_cram); 84 memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram", 4*1024*1024, 85 &error_fatal); 86 vmstate_register_ram_global(ext_dram); 87 memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48*1024, 88 &error_fatal); 89 vmstate_register_ram_global(int_cram); 90 memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48*1024, 91 &error_fatal); 92 vmstate_register_ram_global(int_dram); 93 memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram", 16*1024, 94 &error_fatal); 95 vmstate_register_ram_global(pcp_data); 96 memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram", 32*1024, 97 &error_fatal); 98 vmstate_register_ram_global(pcp_text); 99 100 memory_region_add_subregion(sysmem, 0x80000000, ext_cram); 101 memory_region_add_subregion(sysmem, 0xa1000000, ext_dram); 102 memory_region_add_subregion(sysmem, 0xd4000000, int_cram); 103 memory_region_add_subregion(sysmem, 0xd0000000, int_dram); 104 memory_region_add_subregion(sysmem, 0xf0050000, pcp_data); 105 memory_region_add_subregion(sysmem, 0xf0060000, pcp_text); 106 107 tricoretb_binfo.ram_size = machine->ram_size; 108 tricoretb_binfo.kernel_filename = machine->kernel_filename; 109 110 if (machine->kernel_filename) { 111 tricore_load_kernel(env); 112 } 113 } 114 115 static void tricoreboard_init(MachineState *machine) 116 { 117 tricore_testboard_init(machine, 0x183); 118 } 119 120 static void ttb_machine_init(MachineClass *mc) 121 { 122 mc->desc = "a minimal TriCore board"; 123 mc->init = tricoreboard_init; 124 mc->is_default = 0; 125 } 126 127 DEFINE_MACHINE("tricore_testboard", ttb_machine_init) 128