1 /***************************************************************************
2 * Copyright (C) 2007 by Dominic Rath <Dominic.Rath@gmx.de> *
3 * Copyright (C) 2002 Thomas Gleixner <tglx@linutronix.de> *
4 * Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net> *
6 * Partially based on drivers/mtd/nand_ids.c from Linux. *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
22 ***************************************************************************/
31 static struct nand_ecclayout nand_oob_16
= {
33 .eccpos
= {0, 1, 2, 3, 6, 7},
40 static struct nand_ecclayout nand_oob_64
= {
43 40, 41, 42, 43, 44, 45, 46, 47,
44 48, 49, 50, 51, 52, 53, 54, 55,
45 56, 57, 58, 59, 60, 61, 62, 63
53 void nand_fileio_init(struct nand_fileio_state
*state
)
55 memset(state
, 0, sizeof(*state
));
56 state
->oob_format
= NAND_OOB_NONE
;
59 int nand_fileio_start(struct command_context
*cmd_ctx
,
60 struct nand_device
*nand
, const char *filename
, int filemode
,
61 struct nand_fileio_state
*state
)
63 if (state
->address
% nand
->page_size
) {
64 command_print(cmd_ctx
, "only page-aligned addresses are supported");
65 return ERROR_COMMAND_SYNTAX_ERROR
;
68 duration_start(&state
->bench
);
70 if (NULL
!= filename
) {
71 int retval
= fileio_open(&state
->fileio
, filename
, filemode
, FILEIO_BINARY
);
72 if (ERROR_OK
!= retval
) {
73 const char *msg
= (FILEIO_READ
== filemode
) ? "read" : "write";
74 command_print(cmd_ctx
, "failed to open '%s' for %s access",
78 state
->file_opened
= true;
81 if (!(state
->oob_format
& NAND_OOB_ONLY
)) {
82 state
->page_size
= nand
->page_size
;
83 state
->page
= malloc(nand
->page_size
);
86 if (state
->oob_format
& (NAND_OOB_RAW
| NAND_OOB_SW_ECC
| NAND_OOB_SW_ECC_KW
)) {
87 if (nand
->page_size
== 512) {
89 state
->eccpos
= nand_oob_16
.eccpos
;
90 } else if (nand
->page_size
== 2048) {
92 state
->eccpos
= nand_oob_64
.eccpos
;
94 state
->oob
= malloc(state
->oob_size
);
99 int nand_fileio_cleanup(struct nand_fileio_state
*state
)
101 if (state
->file_opened
)
102 fileio_close(state
->fileio
);
114 int nand_fileio_finish(struct nand_fileio_state
*state
)
116 nand_fileio_cleanup(state
);
117 return duration_measure(&state
->bench
);
120 COMMAND_HELPER(nand_fileio_parse_args
, struct nand_fileio_state
*state
,
121 struct nand_device
**dev
, enum fileio_access filemode
,
122 bool need_size
, bool sw_ecc
)
124 nand_fileio_init(state
);
126 unsigned minargs
= need_size
? 4 : 3;
127 if (CMD_ARGC
< minargs
)
128 return ERROR_COMMAND_SYNTAX_ERROR
;
130 struct nand_device
*nand
;
131 int retval
= CALL_COMMAND_HANDLER(nand_command_get_device
, 0, &nand
);
132 if (ERROR_OK
!= retval
)
135 if (NULL
== nand
->device
) {
136 command_print(CMD_CTX
, "#%s: not probed", CMD_ARGV
[0]);
140 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[2], state
->address
);
142 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[3], state
->size
);
143 if (state
->size
% nand
->page_size
) {
144 command_print(CMD_CTX
, "only page-aligned sizes are supported");
145 return ERROR_COMMAND_SYNTAX_ERROR
;
149 if (CMD_ARGC
> minargs
) {
150 for (unsigned i
= minargs
; i
< CMD_ARGC
; i
++) {
151 if (!strcmp(CMD_ARGV
[i
], "oob_raw"))
152 state
->oob_format
|= NAND_OOB_RAW
;
153 else if (!strcmp(CMD_ARGV
[i
], "oob_only"))
154 state
->oob_format
|= NAND_OOB_RAW
| NAND_OOB_ONLY
;
155 else if (sw_ecc
&& !strcmp(CMD_ARGV
[i
], "oob_softecc"))
156 state
->oob_format
|= NAND_OOB_SW_ECC
;
157 else if (sw_ecc
&& !strcmp(CMD_ARGV
[i
], "oob_softecc_kw"))
158 state
->oob_format
|= NAND_OOB_SW_ECC_KW
;
160 command_print(CMD_CTX
, "unknown option: %s", CMD_ARGV
[i
]);
161 return ERROR_COMMAND_SYNTAX_ERROR
;
166 retval
= nand_fileio_start(CMD_CTX
, nand
, CMD_ARGV
[1], filemode
, state
);
167 if (ERROR_OK
!= retval
)
172 retval
= fileio_size(state
->fileio
, &filesize
);
173 if (retval
!= ERROR_OK
)
175 state
->size
= filesize
;
184 * @returns If no error occurred, returns number of bytes consumed;
185 * otherwise, returns a negative error code.)
187 int nand_fileio_read(struct nand_device
*nand
, struct nand_fileio_state
*s
)
189 size_t total_read
= 0;
192 if (NULL
!= s
->page
) {
193 fileio_read(s
->fileio
, s
->page_size
, s
->page
, &one_read
);
194 if (one_read
< s
->page_size
)
195 memset(s
->page
+ one_read
, 0xff, s
->page_size
- one_read
);
196 total_read
+= one_read
;
199 if (s
->oob_format
& NAND_OOB_SW_ECC
) {
201 memset(s
->oob
, 0xff, s
->oob_size
);
202 for (uint32_t i
= 0, j
= 0; i
< s
->page_size
; i
+= 256) {
203 nand_calculate_ecc(nand
, s
->page
+ i
, ecc
);
204 s
->oob
[s
->eccpos
[j
++]] = ecc
[0];
205 s
->oob
[s
->eccpos
[j
++]] = ecc
[1];
206 s
->oob
[s
->eccpos
[j
++]] = ecc
[2];
208 } else if (s
->oob_format
& NAND_OOB_SW_ECC_KW
) {
210 * In this case eccpos is not used as
211 * the ECC data is always stored contigously
212 * at the end of the OOB area. It consists
213 * of 10 bytes per 512-byte data block.
215 uint8_t *ecc
= s
->oob
+ s
->oob_size
- s
->page_size
/ 512 * 10;
216 memset(s
->oob
, 0xff, s
->oob_size
);
217 for (uint32_t i
= 0; i
< s
->page_size
; i
+= 512) {
218 nand_calculate_ecc_kw(nand
, s
->page
+ i
, ecc
);
221 } else if (NULL
!= s
->oob
) {
222 fileio_read(s
->fileio
, s
->oob_size
, s
->oob
, &one_read
);
223 if (one_read
< s
->oob_size
)
224 memset(s
->oob
+ one_read
, 0xff, s
->oob_size
- one_read
);
225 total_read
+= one_read
;
Linking to existing account procedure
If you already have an account and want to add another login method
you
MUST first sign in with your existing account and
then change URL to read
https://review.openocd.org/login/?link
to get to this page again but this time it'll work for linking. Thank you.
SSH host keys fingerprints
1024 SHA256:YKx8b7u5ZWdcbp7/4AeXNaqElP49m6QrwfXaqQGJAOk gerrit-code-review@openocd.zylin.com (DSA)
384 SHA256:jHIbSQa4REvwCFG4cq5LBlBLxmxSqelQPem/EXIrxjk gerrit-code-review@openocd.org (ECDSA)
521 SHA256:UAOPYkU9Fjtcao0Ul/Rrlnj/OsQvt+pgdYSZ4jOYdgs gerrit-code-review@openocd.org (ECDSA)
256 SHA256:A13M5QlnozFOvTllybRZH6vm7iSt0XLxbA48yfc2yfY gerrit-code-review@openocd.org (ECDSA)
256 SHA256:spYMBqEYoAOtK7yZBrcwE8ZpYt6b68Cfh9yEVetvbXg gerrit-code-review@openocd.org (ED25519)
+--[ED25519 256]--+
|=.. |
|+o.. . |
|*.o . . |
|+B . . . |
|Bo. = o S |
|Oo.+ + = |
|oB=.* = . o |
| =+=.+ + E |
|. .=o . o |
+----[SHA256]-----+
2048 SHA256:0Onrb7/PHjpo6iVZ7xQX2riKN83FJ3KGU0TvI0TaFG4 gerrit-code-review@openocd.zylin.com (RSA)