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
|
/*
* (C) Copyright 2007 Schindler Lift Inc.
* (C) Copyright 2007 Semihalf
*
* Author: Michel Marti <mma@objectxp.com>
* Adapted for U-Boot 1.2 by Piotr Kruszynski <ppk@semihalf.com>:
* - code clean-up
* - bugfix for overwriting bootargs by user
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
#include <malloc.h>
#include <image.h>
#include <usb.h>
#include <fat.h>
#include "fwupdate.h"
extern int do_bootm(cmd_tbl_t *, int, int, char *[]);
extern long do_fat_read(const char *, void *, unsigned long, int);
extern int do_fat_fsload(cmd_tbl_t *, int, int, char *[]);
static int load_rescue_image(ulong);
void cm1_fwupdate(void)
{
cmd_tbl_t *bcmd;
char *rsargs;
char *tmp = NULL;
char ka[16];
char *argv[3] = { "bootm", ka, NULL };
/* Check if rescue system is disabled... */
if (getenv("norescue")) {
printf(LOG_PREFIX "Rescue System disabled.\n");
return;
}
/* Check if we have a USB storage device and load image */
if (load_rescue_image(LOAD_ADDR))
return;
bcmd = find_cmd("bootm");
if (!bcmd)
return;
sprintf(ka, "%lx", LOAD_ADDR);
/* prepare our bootargs */
rsargs = getenv("rs-args");
if (!rsargs)
rsargs = RS_BOOTARGS;
else {
tmp = malloc(strlen(rsargs+1));
if (!tmp) {
printf(LOG_PREFIX "Memory allocation failed\n");
return;
}
strcpy(tmp, rsargs);
rsargs = tmp;
}
setenv("bootargs", rsargs);
if (rsargs == tmp)
free(rsargs);
printf(LOG_PREFIX "Starting update system (bootargs=%s)...\n", rsargs);
do_bootm(bcmd, 0, 2, argv);
}
static int load_rescue_image(ulong addr)
{
disk_partition_t info;
int devno;
int partno;
int i;
char fwdir[64];
char nxri[128];
char *tmp;
char dev[7];
char addr_str[16];
char *argv[6] = { "fatload", "usb", dev, addr_str, nxri, NULL };
block_dev_desc_t *stor_dev = NULL;
cmd_tbl_t *bcmd;
/* Get name of firmware directory */
tmp = getenv("fw-dir");
/* Copy it into fwdir */
strncpy(fwdir, tmp ? tmp : FW_DIR, sizeof(fwdir));
fwdir[sizeof(fwdir) - 1] = 0; /* Terminate string */
printf(LOG_PREFIX "Checking for firmware image directory '%s' on USB"
" storage...\n", fwdir);
usb_stop();
if (usb_init() != 0)
return 1;
/* Check for storage device */
if (usb_stor_scan(1) != 0) {
usb_stop();
return 1;
}
/* Detect storage device */
for (devno = 0; devno < USB_MAX_STOR_DEV; devno++) {
stor_dev = usb_stor_get_dev(devno);
if (stor_dev->type != DEV_TYPE_UNKNOWN)
break;
}
if (!stor_dev || stor_dev->type == DEV_TYPE_UNKNOWN) {
printf(LOG_PREFIX "No valid storage device found...\n");
usb_stop();
return 1;
}
/* Detect partition */
for (partno = -1, i = 0; i < 6; i++) {
if (get_partition_info(stor_dev, i, &info) == 0) {
if (fat_register_device(stor_dev, i) == 0) {
/* Check if rescue image is present */
FW_DEBUG("Looking for firmware directory '%s'"
" on partition %d\n", fwdir, i);
if (do_fat_read(fwdir, NULL, 0, LS_NO) == -1) {
FW_DEBUG("No NX rescue image on "
"partition %d.\n", i);
} else {
partno = i;
FW_DEBUG("Partition %d contains "
"firmware directory\n", partno);
break;
}
}
}
}
if (partno == -1) {
printf(LOG_PREFIX "Error: No valid (FAT) partition detected\n");
usb_stop();
return 1;
}
/* Load the rescue image */
bcmd = find_cmd("fatload");
if (!bcmd) {
printf(LOG_PREFIX "Error - 'fatload' command not present.\n");
usb_stop();
return 1;
}
tmp = getenv("nx-rescue-image");
sprintf(nxri, "%s/%s", fwdir, tmp ? tmp : RESCUE_IMAGE);
sprintf(dev, "%d:%d", devno, partno);
sprintf(addr_str, "%lx", addr);
FW_DEBUG("fat_fsload device='%s', addr='%s', file: %s\n",
dev, addr_str, nxri);
if (do_fat_fsload(bcmd, 0, 5, argv) != 0) {
usb_stop();
return 1;
}
/* Stop USB */
usb_stop();
return 0;
}
|
