1 /***************************************************************************
2 * Copyright (C) 2007 by Pavel Chromy *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
26 #include "embeddedice.h"
29 static int ocl_register_commands(struct command_context_s
*cmd_ctx
);
30 static int ocl_flash_bank_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
, struct flash_bank_s
*bank
);
31 static int ocl_erase(struct flash_bank_s
*bank
, int first
, int last
);
32 static int ocl_protect(struct flash_bank_s
*bank
, int set
, int first
, int last
);
33 static int ocl_write(struct flash_bank_s
*bank
, uint8_t *buffer
, uint32_t offset
, uint32_t count
);
34 static int ocl_probe(struct flash_bank_s
*bank
);
35 static int ocl_erase_check(struct flash_bank_s
*bank
);
36 static int ocl_protect_check(struct flash_bank_s
*bank
);
37 static int ocl_info(struct flash_bank_s
*bank
, char *buf
, int buf_size
);
38 static int ocl_auto_probe(struct flash_bank_s
*bank
);
40 flash_driver_t ocl_flash
=
43 .register_commands
= ocl_register_commands
,
44 .flash_bank_command
= ocl_flash_bank_command
,
46 .protect
= ocl_protect
,
49 .erase_check
= ocl_erase_check
,
50 .protect_check
= ocl_protect_check
,
52 .auto_probe
= ocl_auto_probe
55 typedef struct ocl_priv_s
57 arm_jtag_t
*jtag_info
;
59 unsigned int bufalign
;
62 static int ocl_register_commands(struct command_context_s
*cmd_ctx
)
67 static int ocl_erase_check(struct flash_bank_s
*bank
)
72 static int ocl_protect_check(struct flash_bank_s
*bank
)
77 /* flash_bank ocl 0 0 0 0 <target#> */
78 static int ocl_flash_bank_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
, struct flash_bank_s
*bank
)
81 armv4_5_common_t
*armv4_5
;
82 arm7_9_common_t
*arm7_9
;
87 LOG_WARNING("incomplete flash_bank ocl configuration");
88 return ERROR_FLASH_BANK_INVALID
;
91 if ((retval
= arm7_9_get_arch_pointers(bank
->target
, &armv4_5
, &arm7_9
)) != ERROR_OK
)
94 ocl
= bank
->driver_priv
= malloc(sizeof(ocl_priv_t
));
95 ocl
->jtag_info
= &arm7_9
->jtag_info
;
102 static int ocl_erase(struct flash_bank_s
*bank
, int first
, int last
)
104 ocl_priv_t
*ocl
= bank
->driver_priv
;
106 uint32_t dcc_buffer
[3];
108 /* check preconditions */
109 if (bank
->num_sectors
== 0)
110 return ERROR_FLASH_BANK_NOT_PROBED
;
112 if (bank
->target
->state
!= TARGET_RUNNING
)
114 LOG_ERROR("target has to be running to communicate with the loader");
115 return ERROR_TARGET_NOT_RUNNING
;
118 if ((first
== 0) && (last
== bank
->num_sectors
- 1))
120 dcc_buffer
[0] = OCL_ERASE_ALL
;
121 if ((retval
= embeddedice_send(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
126 dcc_buffer
[0] = OCL_ERASE_BLOCK
;
127 dcc_buffer
[1] = first
;
128 dcc_buffer
[2] = last
;
129 if ((retval
= embeddedice_send(ocl
->jtag_info
, dcc_buffer
, 3) != ERROR_OK
))
133 /* wait for response, fixed timeout of 1 s */
134 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 1000) != ERROR_OK
))
136 if (retval
== ERROR_TARGET_TIMEOUT
)
137 LOG_ERROR("loader not responding");
141 /* receive response */
142 if ((retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
+1, 1) != ERROR_OK
))
145 if (dcc_buffer
[1] != OCL_CMD_DONE
)
147 if (dcc_buffer
[0] == OCL_ERASE_ALL
)
148 LOG_ERROR("loader response to OCL_ERASE_ALL 0x%08" PRIx32
"", dcc_buffer
[1]);
150 LOG_ERROR("loader response to OCL_ERASE_BLOCK 0x%08" PRIx32
"", dcc_buffer
[1]);
151 return ERROR_FLASH_OPERATION_FAILED
;
157 static int ocl_protect(struct flash_bank_s
*bank
, int set
, int first
, int last
)
162 static int ocl_write(struct flash_bank_s
*bank
, uint8_t *buffer
, uint32_t offset
, uint32_t count
)
164 ocl_priv_t
*ocl
= bank
->driver_priv
;
166 uint32_t *dcc_buffer
;
167 uint32_t *dcc_bufptr
;
174 /* check preconditions */
175 if (ocl
->buflen
== 0 || ocl
->bufalign
==0)
176 return ERROR_FLASH_BANK_NOT_PROBED
;
178 if (bank
->target
->state
!= TARGET_RUNNING
)
180 LOG_ERROR("target has to be running to communicate with the loader");
181 return ERROR_TARGET_NOT_RUNNING
;
184 /* allocate buffer for max. ocl buffer + overhead */
185 dcc_buffer
= malloc(sizeof(uint32_t)*(ocl
->buflen
/4+3));
189 if (count
+ (offset
% ocl
->bufalign
) > ocl
->buflen
)
190 runlen
= ocl
->buflen
- (offset
% ocl
->bufalign
);
194 dcc_buffer
[0] = OCL_FLASH_BLOCK
| runlen
;
195 dcc_buffer
[1] = offset
;
196 dcc_bufptr
= &dcc_buffer
[2];
198 *dcc_bufptr
= 0xffffffff;
199 byteofs
= (offset
% ocl
->bufalign
) % 4;
200 chksum
= OCL_CHKS_INIT
;
202 /* copy data to DCC buffer in proper byte order and properly aligned */
203 for (i
=0; i
<runlen
; i
++)
208 *dcc_bufptr
&= *(buffer
++) | 0xffffff00;
211 *dcc_bufptr
&= ((*(buffer
++)) << 8) | 0xffff00ff;
214 *dcc_bufptr
&= ((*(buffer
++)) << 16) | 0xff00ffff;
217 *dcc_bufptr
&= ((*(buffer
++)) << 24) | 0x00ffffff;
218 chksum
^= *(dcc_bufptr
++);
219 *dcc_bufptr
= 0xffffffff;
225 /* add the remaining word to checksum */
227 chksum
^= *(dcc_bufptr
++);
229 *(dcc_bufptr
++) = chksum
;
232 if ((retval
= embeddedice_send(ocl
->jtag_info
, dcc_buffer
, dcc_bufptr
-dcc_buffer
)) != ERROR_OK
)
238 /* wait for response, fixed timeout of 1 s */
239 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 1000) != ERROR_OK
))
241 if (retval
== ERROR_TARGET_TIMEOUT
)
242 LOG_ERROR("loader not responding");
247 /* receive response */
248 if ((retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
254 if (dcc_buffer
[0] != OCL_CMD_DONE
)
256 LOG_ERROR("loader response to OCL_FLASH_BLOCK 0x%08" PRIx32
"", dcc_buffer
[0]);
258 return ERROR_FLASH_OPERATION_FAILED
;
269 static int ocl_probe(struct flash_bank_s
*bank
)
271 ocl_priv_t
*ocl
= bank
->driver_priv
;
273 uint32_t dcc_buffer
[1];
277 /* purge pending data in DCC */
278 embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1);
280 dcc_buffer
[0] = OCL_PROBE
;
281 if ((retval
= embeddedice_send(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
284 /* wait for response, fixed timeout of 1 s */
285 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 1000) != ERROR_OK
))
287 if (retval
== ERROR_TARGET_TIMEOUT
)
288 LOG_ERROR("loader not responding");
292 /* receive response */
293 if ((retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
296 if (dcc_buffer
[0] != OCL_CMD_DONE
)
298 LOG_ERROR("loader response to OCL_PROBE 0x%08" PRIx32
"", dcc_buffer
[0]);
299 return ERROR_FLASH_OPERATION_FAILED
;
302 /* receive and fill in parameters, detection of loader is important, receive it one by one */
303 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 0) != ERROR_OK
)
304 || (retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
306 bank
->base
= dcc_buffer
[0];
308 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 0) != ERROR_OK
)
309 || (retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
311 bank
->size
= dcc_buffer
[0];
313 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 0) != ERROR_OK
)
314 || (retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
316 bank
->num_sectors
= dcc_buffer
[0];
318 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 0) != ERROR_OK
)
319 || (retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
321 ocl
->buflen
= dcc_buffer
[0] & 0xffff;
322 ocl
->bufalign
= dcc_buffer
[0] >> 16;
324 bank
->sectors
= realloc(bank
->sectors
, sizeof(flash_sector_t
)*bank
->num_sectors
);
325 if (bank
->num_sectors
== 0)
327 LOG_ERROR("number of sectors shall be non zero value");
328 return ERROR_FLASH_BANK_INVALID
;
330 if (bank
->size
% bank
->num_sectors
) {
331 LOG_ERROR("bank size not divisible by number of sectors");
332 return ERROR_FLASH_BANK_INVALID
;
334 sectsize
= bank
->size
/ bank
->num_sectors
;
335 for (i
=0; i
<bank
->num_sectors
; i
++)
337 bank
->sectors
[i
].offset
= i
* sectsize
;
338 bank
->sectors
[i
].size
= sectsize
;
339 bank
->sectors
[i
].is_erased
= -1;
340 bank
->sectors
[i
].is_protected
= -1;
343 if (ocl
->bufalign
== 0)
346 if (ocl
->buflen
== 0)
348 LOG_ERROR("buflen shall be non zero value");
349 return ERROR_FLASH_BANK_INVALID
;
352 if ((ocl
->bufalign
> ocl
->buflen
) || (ocl
->buflen
% ocl
->bufalign
))
354 LOG_ERROR("buflen is not multiple of bufalign");
355 return ERROR_FLASH_BANK_INVALID
;
360 LOG_ERROR("buflen shall be divisible by 4");
361 return ERROR_FLASH_BANK_INVALID
;
367 static int ocl_info(struct flash_bank_s
*bank
, char *buf
, int buf_size
)
372 static int ocl_auto_probe(struct flash_bank_s
*bank
)
374 ocl_priv_t
*ocl
= bank
->driver_priv
;
376 if (ocl
->buflen
== 0 || ocl
->bufalign
==0)
377 return ERROR_FLASH_BANK_NOT_PROBED
;
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)