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 "hw/hw.h" 22 #include "hw/devices.h" 23 #include "net/net.h" 24 #include "sysemu/sysemu.h" 25 #include "hw/boards.h" 26 #include "hw/loader.h" 27 #include "sysemu/blockdev.h" 28 #include "exec/address-spaces.h" 29 #include "hw/block/flash.h" 30 #include "elf.h" 31 #include "hw/tricore/tricore.h" 32 #include "qemu/error-report.h" 33 34 35 /* Board init. */ 36 37 static struct tricore_boot_info tricoretb_binfo; 38 39 static void tricore_load_kernel(CPUTriCoreState *env) 40 { 41 uint64_t entry; 42 long kernel_size; 43 44 kernel_size = load_elf(tricoretb_binfo.kernel_filename, NULL, 45 NULL, (uint64_t *)&entry, NULL, 46 NULL, 0, 47 ELF_MACHINE, 1); 48 if (kernel_size <= 0) { 49 error_report("qemu: no kernel file '%s'", 50 tricoretb_binfo.kernel_filename); 51 exit(1); 52 } 53 env->PC = entry; 54 55 } 56 57 static void tricore_testboard_init(MachineState *machine, int board_id) 58 { 59 TriCoreCPU *cpu; 60 CPUTriCoreState *env; 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 if (!machine->cpu_model) { 71 machine->cpu_model = "tc1796"; 72 } 73 cpu = cpu_tricore_init(machine->cpu_model); 74 env = &cpu->env; 75 if (!cpu) { 76 error_report("Unable to find CPU definition"); 77 exit(1); 78 } 79 memory_region_init_ram(ext_cram, NULL, "powerlink_ext_c.ram", 2*1024*1024); 80 vmstate_register_ram_global(ext_cram); 81 memory_region_init_ram(ext_dram, NULL, "powerlink_ext_d.ram", 4*1024*1024); 82 vmstate_register_ram_global(ext_dram); 83 memory_region_init_ram(int_cram, NULL, "powerlink_int_c.ram", 48*1024); 84 vmstate_register_ram_global(int_cram); 85 memory_region_init_ram(int_dram, NULL, "powerlink_int_d.ram", 48*1024); 86 vmstate_register_ram_global(int_dram); 87 memory_region_init_ram(pcp_data, NULL, "powerlink_pcp_data.ram", 16*1024); 88 vmstate_register_ram_global(pcp_data); 89 memory_region_init_ram(pcp_text, NULL, "powerlink_pcp_text.ram", 32*1024); 90 vmstate_register_ram_global(pcp_text); 91 92 memory_region_add_subregion(sysmem, 0x80000000, ext_cram); 93 memory_region_add_subregion(sysmem, 0xa1000000, ext_dram); 94 memory_region_add_subregion(sysmem, 0xd4000000, int_cram); 95 memory_region_add_subregion(sysmem, 0xd0000000, int_dram); 96 memory_region_add_subregion(sysmem, 0xf0050000, pcp_data); 97 memory_region_add_subregion(sysmem, 0xf0060000, pcp_text); 98 99 tricoretb_binfo.ram_size = machine->ram_size; 100 tricoretb_binfo.kernel_filename = machine->kernel_filename; 101 102 if (machine->kernel_filename) { 103 tricore_load_kernel(env); 104 } 105 } 106 107 static void tricoreboard_init(MachineState *machine) 108 { 109 tricore_testboard_init(machine, 0x183); 110 } 111 112 static QEMUMachine ttb_machine = { 113 .name = "tricore_testboard", 114 .desc = "a minimal TriCore board", 115 .init = tricoreboard_init, 116 .is_default = 0, 117 }; 118 119 static void tricore_testboard_machine_init(void) 120 { 121 qemu_register_machine(&ttb_machine); 122 } 123 124 machine_init(tricore_testboard_machine_init); 125