1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
/*
* RX QEMU GDB simulator
*
* Copyright (c) 2019 Yoshinori Sato
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2 or later, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "qemu/cutils.h"
#include "qemu/error-report.h"
#include "qapi/error.h"
#include "qemu-common.h"
#include "cpu.h"
#include "hw/loader.h"
#include "hw/rx/rx62n.h"
#include "sysemu/qtest.h"
#include "sysemu/device_tree.h"
#include "hw/boards.h"
#include "qom/object.h"
/* Same address of GDB integrated simulator */
#define SDRAM_BASE EXT_CS_BASE
struct RxGdbSimMachineClass {
/*< private >*/
MachineClass parent_class;
/*< public >*/
const char *mcu_name;
uint32_t xtal_freq_hz;
};
typedef struct RxGdbSimMachineClass RxGdbSimMachineClass;
struct RxGdbSimMachineState {
/*< private >*/
MachineState parent_obj;
/*< public >*/
RX62NState mcu;
};
typedef struct RxGdbSimMachineState RxGdbSimMachineState;
#define TYPE_RX_GDBSIM_MACHINE MACHINE_TYPE_NAME("rx62n-common")
DECLARE_OBJ_CHECKERS(RxGdbSimMachineState, RxGdbSimMachineClass,
RX_GDBSIM_MACHINE, TYPE_RX_GDBSIM_MACHINE)
static void rx_load_image(RXCPU *cpu, const char *filename,
uint32_t start, uint32_t size)
{
static uint32_t extable[32];
long kernel_size;
int i;
kernel_size = load_image_targphys(filename, start, size);
if (kernel_size < 0) {
fprintf(stderr, "qemu: could not load kernel '%s'\n", filename);
exit(1);
}
cpu->env.pc = start;
/* setup exception trap trampoline */
/* linux kernel only works little-endian mode */
for (i = 0; i < ARRAY_SIZE(extable); i++) {
extable[i] = cpu_to_le32(0x10 + i * 4);
}
rom_add_blob_fixed("extable", extable, sizeof(extable), VECTOR_TABLE_BASE);
}
static void rx_gdbsim_init(MachineState *machine)
{
MachineClass *mc = MACHINE_GET_CLASS(machine);
RxGdbSimMachineState *s = RX_GDBSIM_MACHINE(machine);
RxGdbSimMachineClass *rxc = RX_GDBSIM_MACHINE_GET_CLASS(machine);
MemoryRegion *sysmem = get_system_memory();
const char *kernel_filename = machine->kernel_filename;
const char *dtb_filename = machine->dtb;
if (machine->ram_size < mc->default_ram_size) {
char *sz = size_to_str(mc->default_ram_size);
error_report("Invalid RAM size, should be more than %s", sz);
g_free(sz);
}
/* Allocate memory space */
memory_region_add_subregion(sysmem, SDRAM_BASE, machine->ram);
/* Initialize MCU */
object_initialize_child(OBJECT(machine), "mcu", &s->mcu, rxc->mcu_name);
object_property_set_link(OBJECT(&s->mcu), "main-bus", OBJECT(sysmem),
&error_abort);
object_property_set_uint(OBJECT(&s->mcu), "xtal-frequency-hz",
rxc->xtal_freq_hz, &error_abort);
object_property_set_bool(OBJECT(&s->mcu), "load-kernel",
kernel_filename != NULL, &error_abort);
if (!kernel_filename) {
if (machine->firmware) {
rom_add_file_fixed(machine->firmware, RX62N_CFLASH_BASE, 0);
} else if (!qtest_enabled()) {
error_report("No bios or kernel specified");
exit(1);
}
}
qdev_realize(DEVICE(&s->mcu), NULL, &error_abort);
/* Load kernel and dtb */
if (kernel_filename) {
ram_addr_t kernel_offset;
/*
* The kernel image is loaded into
* the latter half of the SDRAM space.
*/
kernel_offset = machine->ram_size / 2;
rx_load_image(RX_CPU(first_cpu), kernel_filename,
SDRAM_BASE + kernel_offset, kernel_offset);
if (dtb_filename) {
ram_addr_t dtb_offset;
int dtb_size;
g_autofree void *dtb = load_device_tree(dtb_filename, &dtb_size);
if (dtb == NULL) {
error_report("Couldn't open dtb file %s", dtb_filename);
exit(1);
}
if (machine->kernel_cmdline &&
qemu_fdt_setprop_string(dtb, "/chosen", "bootargs",
machine->kernel_cmdline) < 0) {
error_report("Couldn't set /chosen/bootargs");
exit(1);
}
/* DTB is located at the end of SDRAM space. */
dtb_offset = machine->ram_size - dtb_size;
rom_add_blob_fixed("dtb", dtb, dtb_size,
SDRAM_BASE + dtb_offset);
/* Set dtb address to R1 */
RX_CPU(first_cpu)->env.regs[1] = SDRAM_BASE + dtb_offset;
}
}
}
static void rx_gdbsim_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->init = rx_gdbsim_init;
mc->default_cpu_type = TYPE_RX62N_CPU;
mc->default_ram_size = 16 * MiB;
mc->default_ram_id = "ext-sdram";
}
static void rx62n7_class_init(ObjectClass *oc, void *data)
{
RxGdbSimMachineClass *rxc = RX_GDBSIM_MACHINE_CLASS(oc);
MachineClass *mc = MACHINE_CLASS(oc);
rxc->mcu_name = TYPE_R5F562N7_MCU;
rxc->xtal_freq_hz = 12 * 1000 * 1000;
mc->desc = "gdb simulator (R5F562N7 MCU and external RAM)";
};
static void rx62n8_class_init(ObjectClass *oc, void *data)
{
RxGdbSimMachineClass *rxc = RX_GDBSIM_MACHINE_CLASS(oc);
MachineClass *mc = MACHINE_CLASS(oc);
rxc->mcu_name = TYPE_R5F562N8_MCU;
rxc->xtal_freq_hz = 12 * 1000 * 1000;
mc->desc = "gdb simulator (R5F562N8 MCU and external RAM)";
};
static const TypeInfo rx_gdbsim_types[] = {
{
.name = MACHINE_TYPE_NAME("gdbsim-r5f562n7"),
.parent = TYPE_RX_GDBSIM_MACHINE,
.class_init = rx62n7_class_init,
}, {
.name = MACHINE_TYPE_NAME("gdbsim-r5f562n8"),
.parent = TYPE_RX_GDBSIM_MACHINE,
.class_init = rx62n8_class_init,
}, {
.name = TYPE_RX_GDBSIM_MACHINE,
.parent = TYPE_MACHINE,
.instance_size = sizeof(RxGdbSimMachineState),
.class_size = sizeof(RxGdbSimMachineClass),
.class_init = rx_gdbsim_class_init,
.abstract = true,
}
};
DEFINE_TYPES(rx_gdbsim_types)
|
