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
|
/*
* QEMU ETRAX System Emulator
*
* Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <time.h>
#include <sys/time.h>
#include "hw.h"
#include "net.h"
#include "flash.h"
#include "sysemu.h"
#include "devices.h"
#include "boards.h"
#include "etraxfs_dma.h"
static void main_cpu_reset(void *opaque)
{
CPUState *env = opaque;
cpu_reset(env);
}
/* Init functions for different blocks. */
extern qemu_irq *etraxfs_pic_init(CPUState *env, target_phys_addr_t base);
void etraxfs_timer_init(CPUState *env, qemu_irq *irqs,
target_phys_addr_t base);
void *etraxfs_eth_init(NICInfo *nd, CPUState *env,
qemu_irq *irq, target_phys_addr_t base);
void etraxfs_ser_init(CPUState *env, qemu_irq *irq, CharDriverState *chr,
target_phys_addr_t base);
#define FLASH_SIZE 0x2000000
#define INTMEM_SIZE (128 * 1024)
static void *etraxfs_dmac;
static
void bareetraxfs_init (ram_addr_t ram_size, int vga_ram_size,
const char *boot_device, DisplayState *ds,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
CPUState *env;
qemu_irq *pic;
struct etraxfs_dma_client *eth[2] = {NULL, NULL};
int kernel_size;
int i;
ram_addr_t phys_ram;
ram_addr_t phys_intmem;
/* init CPUs */
if (cpu_model == NULL) {
cpu_model = "crisv32";
}
env = cpu_init(cpu_model);
/* register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); */
qemu_register_reset(main_cpu_reset, env);
/* allocate RAM */
phys_ram = qemu_ram_alloc(ram_size);
cpu_register_physical_memory(0x40000000, ram_size, phys_ram | IO_MEM_RAM);
/* Unached mapping. */
cpu_register_physical_memory(0xc0000000, ram_size, phys_ram | IO_MEM_RAM);
/* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the
internal memory. Cached and uncached mappings. */
phys_intmem = qemu_ram_alloc(INTMEM_SIZE);
cpu_register_physical_memory(0xb8000000, INTMEM_SIZE,
phys_intmem | IO_MEM_RAM);
cpu_register_physical_memory(0x38000000, INTMEM_SIZE,
phys_intmem | IO_MEM_RAM);
cpu_register_physical_memory(0, FLASH_SIZE, IO_MEM_ROM);
cpu_register_physical_memory(0x80000000, FLASH_SIZE, IO_MEM_ROM);
cpu_register_physical_memory(0x04000000, FLASH_SIZE, IO_MEM_ROM);
cpu_register_physical_memory(0x84000000, FLASH_SIZE,
0x04000000 | IO_MEM_ROM);
i = drive_get_index(IF_PFLASH, 0, 0);
pflash_cfi02_register(0x80000000, qemu_ram_alloc(FLASH_SIZE),
drives_table[i].bdrv, (64 * 1024),
FLASH_SIZE >> 16,
1, 2, 0x0000, 0x0000, 0x0000, 0x0000, 0x555, 0x2aa);
pic = etraxfs_pic_init(env, 0xb001c000);
etraxfs_dmac = etraxfs_dmac_init(env, 0xb0000000, 10);
for (i = 0; i < 10; i++) {
/* On ETRAX, odd numbered channels are inputs. */
etraxfs_dmac_connect(etraxfs_dmac, i, pic + 7 + i, i & 1);
}
/* Add the two ethernet blocks. */
eth[0] = etraxfs_eth_init(&nd_table[0], env, pic + 25, 0xb0034000);
if (nb_nics > 1)
eth[1] = etraxfs_eth_init(&nd_table[1], env, pic + 26, 0xb0036000);
/* The DMA Connector block is missing, hardwire things for now. */
etraxfs_dmac_connect_client(etraxfs_dmac, 0, eth[0]);
etraxfs_dmac_connect_client(etraxfs_dmac, 1, eth[0] + 1);
if (eth[1]) {
etraxfs_dmac_connect_client(etraxfs_dmac, 6, eth[1]);
etraxfs_dmac_connect_client(etraxfs_dmac, 7, eth[1] + 1);
}
/* 2 timers. */
etraxfs_timer_init(env, pic + 0x1b, 0xb001e000);
etraxfs_timer_init(env, pic + 0x1b, 0xb005e000);
for (i = 0; i < 4; i++) {
if (serial_hds[i]) {
etraxfs_ser_init(env, pic + 0x14 + i,
serial_hds[i], 0xb0026000 + i * 0x2000);
}
}
#if 1
/* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis devboard
SDK. */
kernel_size = load_elf(kernel_filename, 0, &env->pc, NULL, NULL);
#else
/* Takes a kimage from the axis devboard SDK. */
kernel_size = load_image(kernel_filename, phys_ram_base + 0x4000);
env->pc = 0x40004000;
#endif
/* magic for boot. */
env->regs[8] = 0x56902387;
env->regs[9] = 0x40004000 + kernel_size;
{
unsigned char *ptr = phys_ram_base + 0x4000;
int i;
for (i = 0; i < 8; i++)
{
printf ("%2.2x ", ptr[i]);
}
printf("\n");
}
printf ("pc =%x\n", env->pc);
printf ("ram size =%ld\n", ram_size);
printf ("kernel name =%s\n", kernel_filename);
printf ("kernel size =%d\n", kernel_size);
printf ("cpu haltd =%d\n", env->halted);
}
void DMA_run(void)
{
etraxfs_dmac_run(etraxfs_dmac);
}
QEMUMachine bareetraxfs_machine = {
"bareetraxfs",
"Bare ETRAX FS board",
bareetraxfs_init,
0x4000000,
};
|
