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
|
/*
* U-Boot command for OneNAND support
*
* Copyright (C) 2005-2007 Samsung Electronics
* Kyungmin Park <kyungmin.park@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <common.h>
#include <command.h>
#include <linux/mtd/compat.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/onenand.h>
#include <asm/io.h>
extern struct mtd_info onenand_mtd;
extern struct onenand_chip onenand_chip;
int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
int ret = 0;
switch (argc) {
case 0:
case 1:
printf("Usage:\n%s\n", cmdtp->usage);
return 1;
case 2:
if (strncmp(argv[1], "open", 4) == 0) {
onenand_init();
return 0;
}
printf("%s\n", onenand_mtd.name);
return 0;
default:
/* At least 4 args */
if (strncmp(argv[1], "erase", 5) == 0) {
struct erase_info instr = {
.callback = NULL,
};
ulong start, end;
ulong block;
char *endtail;
if (strncmp(argv[2], "block", 5) == 0) {
start = simple_strtoul(argv[3], NULL, 10);
endtail = strchr(argv[3], '-');
end = simple_strtoul(endtail + 1, NULL, 10);
} else {
start = simple_strtoul(argv[2], NULL, 10);
end = simple_strtoul(argv[3], NULL, 10);
start >>= onenand_chip.erase_shift;
end >>= onenand_chip.erase_shift;
/* Don't include the end block */
end--;
}
if (!end || end < 0)
end = start;
printf("Erase block from %lu to %lu\n", start, end);
for (block = start; block <= end; block++) {
instr.addr = block << onenand_chip.erase_shift;
instr.len = 1 << onenand_chip.erase_shift;
ret = onenand_erase(&onenand_mtd, &instr);
if (ret) {
printf("erase failed %lu\n", block);
break;
}
}
return 0;
}
if (strncmp(argv[1], "read", 4) == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong ofs = simple_strtoul(argv[3], NULL, 16);
size_t len = simple_strtoul(argv[4], NULL, 16);
int oob = strncmp(argv[1], "read.oob", 8) ? 0 : 1;
struct mtd_oob_ops ops;
ops.mode = MTD_OOB_PLACE;
if (oob) {
ops.len = 0;
ops.datbuf = NULL;
ops.ooblen = len;
ops.oobbuf = (u_char *) addr;
} else {
ops.len = len;
ops.datbuf = (u_char *) addr;
ops.ooblen = 0;
ops.oobbuf = NULL;
}
ops.retlen = ops.oobretlen = 0;
onenand_mtd.read_oob(&onenand_mtd, ofs, &ops);
printf("Done\n");
return 0;
}
if (strncmp(argv[1], "write", 5) == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong ofs = simple_strtoul(argv[3], NULL, 16);
size_t len = simple_strtoul(argv[4], NULL, 16);
size_t retlen = 0;
onenand_write(&onenand_mtd, ofs, len, &retlen,
(u_char *) addr);
printf("Done\n");
return 0;
}
if (strncmp(argv[1], "block", 5) == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong block = simple_strtoul(argv[3], NULL, 10);
ulong page = simple_strtoul(argv[4], NULL, 10);
size_t len = simple_strtol(argv[5], NULL, 10);
ulong ofs;
int oob = strncmp(argv[1], "block.oob", 9) ? 0 : 1;
struct mtd_oob_ops ops;
ops.mode = MTD_OOB_PLACE;
ofs = block << onenand_chip.erase_shift;
if (page)
ofs += page << onenand_chip.page_shift;
if (!len) {
if (oob)
ops.ooblen = 64;
else
ops.len = 512;
}
if (oob) {
ops.datbuf = NULL;
ops.oobbuf = (u_char *) addr;
} else {
ops.datbuf = (u_char *) addr;
ops.oobbuf = NULL;
}
ops.retlen = ops.oobretlen = 0;
onenand_read_oob(&onenand_mtd, ofs, &ops);
return 0;
}
break;
}
return 0;
}
U_BOOT_CMD(
onenand, 6, 1, do_onenand,
"onenand - OneNAND sub-system\n",
"info - show available OneNAND devices\n"
"onenand read[.oob] addr ofs len - read data at ofs with len to addr\n"
"onenand write addr ofs len - write data at ofs with len from addr\n"
"onenand erase saddr eaddr - erase block start addr to end addr\n"
"onenand block[.oob] addr block [page] [len] - "
"read data with (block [, page]) to addr"
);
|
