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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); |