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
|
/*
* (C) Copyright 2002
* Stäubli Faverges - <www.staubli.com>
* Pierre AUBERT p.aubert@staubli.com
*
* 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
*/
/*
* Dos floppy support
*/
#include <common.h>
#include <config.h>
#include <command.h>
#include <fdc.h>
/*-----------------------------------------------------------------------------
* do_fdosboot --
*-----------------------------------------------------------------------------
*/
int do_fdosboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
char *name;
char *ep;
int size;
char buf [12];
int drive = CONFIG_SYS_FDC_DRIVE_NUMBER;
/* pre-set load_addr */
if ((ep = getenv("loadaddr")) != NULL) {
load_addr = simple_strtoul(ep, NULL, 16);
}
/* pre-set Boot file name */
if ((name = getenv("bootfile")) == NULL) {
name = "uImage";
}
switch (argc) {
case 1:
break;
case 2:
/* only one arg - accept two forms:
* just load address, or just boot file name.
* The latter form must be written "filename" here.
*/
if (argv[1][0] == '"') { /* just boot filename */
name = argv [1];
} else { /* load address */
load_addr = simple_strtoul(argv[1], NULL, 16);
}
break;
case 3:
load_addr = simple_strtoul(argv[1], NULL, 16);
name = argv [2];
break;
default:
return cmd_usage(cmdtp);
}
/* Init physical layer */
if (!fdc_fdos_init (drive)) {
return (-1);
}
/* Open file */
if (dos_open (name) < 0) {
printf ("Unable to open %s\n", name);
return 1;
}
if ((size = dos_read (load_addr)) < 0) {
printf ("boot error\n");
return 1;
}
flush_cache (load_addr, size);
sprintf(buf, "%x", size);
setenv("filesize", buf);
printf("Floppy DOS load complete: %d bytes loaded to 0x%lx\n",
size, load_addr);
return bootm_maybe_autostart(cmdtp, argv[0]);
}
/*-----------------------------------------------------------------------------
* do_fdosls --
*-----------------------------------------------------------------------------
*/
int do_fdosls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
char *path = "";
int drive = CONFIG_SYS_FDC_DRIVE_NUMBER;
switch (argc) {
case 1:
break;
case 2:
path = argv [1];
break;
}
/* Init physical layer */
if (!fdc_fdos_init (drive)) {
return (-1);
}
/* Open directory */
if (dos_open (path) < 0) {
printf ("Unable to open %s\n", path);
return 1;
}
return (dos_dir ());
}
U_BOOT_CMD(
fdosboot, 3, 0, do_fdosboot,
"boot from a dos floppy file",
"[loadAddr] [filename]"
);
U_BOOT_CMD(
fdosls, 2, 0, do_fdosls,
"list files in a directory",
"[directory]"
);
|
