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