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