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 ***************************************************************************/
24 #include "replacements.h"
31 #include "binarybuffer.h"
33 #include "embeddedice.h"
34 #include "arm7_9_common.h"
40 int ocl_register_commands(struct command_context_s
*cmd_ctx
);
41 int ocl_flash_bank_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
, struct flash_bank_s
*bank
);
42 int ocl_erase(struct flash_bank_s
*bank
, int first
, int last
);
43 int ocl_protect(struct flash_bank_s
*bank
, int set
, int first
, int last
);
44 int ocl_write(struct flash_bank_s
*bank
, u8
*buffer
, u32 offset
, u32 count
);
45 int ocl_probe(struct flash_bank_s
*bank
);
46 int ocl_erase_check(struct flash_bank_s
*bank
);
47 int ocl_protect_check(struct flash_bank_s
*bank
);
48 int ocl_info(struct flash_bank_s
*bank
, char *buf
, int buf_size
);
49 int ocl_auto_probe(struct flash_bank_s
*bank
);
51 flash_driver_t ocl_flash
=
54 .register_commands
= ocl_register_commands
,
55 .flash_bank_command
= ocl_flash_bank_command
,
57 .protect
= ocl_protect
,
60 .erase_check
= ocl_erase_check
,
61 .protect_check
= ocl_protect_check
,
63 .auto_probe
= ocl_auto_probe
67 typedef struct ocl_priv_s
69 arm_jtag_t
*jtag_info
;
75 int ocl_register_commands(struct command_context_s
*cmd_ctx
)
81 int ocl_erase_check(struct flash_bank_s
*bank
)
87 int ocl_protect_check(struct flash_bank_s
*bank
)
93 /* flash_bank ocl 0 0 0 0 <target#> */
94 int ocl_flash_bank_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
, struct flash_bank_s
*bank
)
97 armv4_5_common_t
*armv4_5
;
98 arm7_9_common_t
*arm7_9
;
103 LOG_WARNING("incomplete flash_bank ocl configuration");
104 return ERROR_FLASH_BANK_INVALID
;
107 if ((retval
= arm7_9_get_arch_pointers(bank
->target
, &armv4_5
, &arm7_9
)) != ERROR_OK
)
110 ocl
= bank
->driver_priv
= malloc(sizeof(ocl_priv_t
));
111 ocl
->jtag_info
= &arm7_9
->jtag_info
;
119 int ocl_erase(struct flash_bank_s
*bank
, int first
, int last
)
121 ocl_priv_t
*ocl
= bank
->driver_priv
;
125 /* check preconditions */
126 if (bank
->num_sectors
== 0)
127 return ERROR_FLASH_BANK_NOT_PROBED
;
129 if (bank
->target
->state
!= TARGET_RUNNING
)
131 LOG_ERROR("target has to be running to communicate with the loader");
132 return ERROR_TARGET_NOT_RUNNING
;
135 if ((first
== 0) && (last
== bank
->num_sectors
- 1))
137 dcc_buffer
[0] = OCL_ERASE_ALL
;
138 if ((retval
= embeddedice_send(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
143 dcc_buffer
[0] = OCL_ERASE_BLOCK
;
144 dcc_buffer
[1] = first
;
145 dcc_buffer
[2] = last
;
146 if ((retval
= embeddedice_send(ocl
->jtag_info
, dcc_buffer
, 3) != ERROR_OK
))
150 /* wait for response, fixed timeout of 1 s */
151 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 1000) != ERROR_OK
))
153 if (retval
== ERROR_TARGET_TIMEOUT
)
154 LOG_ERROR("loader not responding");
158 /* receive response */
159 if ((retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
+1, 1) != ERROR_OK
))
162 if (dcc_buffer
[1] != OCL_CMD_DONE
)
164 if (dcc_buffer
[0] == OCL_ERASE_ALL
)
165 LOG_ERROR("loader response to OCL_ERASE_ALL 0x%08lX", dcc_buffer
[1]);
167 LOG_ERROR("loader response to OCL_ERASE_BLOCK 0x%08lX", dcc_buffer
[1]);
168 return ERROR_FLASH_OPERATION_FAILED
;
175 int ocl_protect(struct flash_bank_s
*bank
, int set
, int first
, int last
)
181 int ocl_write(struct flash_bank_s
*bank
, u8
*buffer
, u32 offset
, u32 count
)
183 ocl_priv_t
*ocl
= bank
->driver_priv
;
193 /* check preconditions */
194 if (ocl
->buflen
== 0 || ocl
->bufalign
==0)
195 return ERROR_FLASH_BANK_NOT_PROBED
;
197 if (bank
->target
->state
!= TARGET_RUNNING
)
199 LOG_ERROR("target has to be running to communicate with the loader");
200 return ERROR_TARGET_NOT_RUNNING
;
203 /* allocate buffer for max. ocl buffer + overhead */
204 dcc_buffer
= malloc(sizeof(u32
)*(ocl
->buflen
/4+3));
208 if (count
+ (offset
% ocl
->bufalign
) > ocl
->buflen
)
209 runlen
= ocl
->buflen
- (offset
% ocl
->bufalign
);
213 dcc_buffer
[0] = OCL_FLASH_BLOCK
| runlen
;
214 dcc_buffer
[1] = offset
;
215 dcc_bufptr
= &dcc_buffer
[2];
217 *dcc_bufptr
= 0xffffffff;
218 byteofs
= (offset
% ocl
->bufalign
) % 4;
219 chksum
= OCL_CHKS_INIT
;
221 /* copy data to DCC buffer in proper byte order and properly aligned */
222 for (i
=0; i
<runlen
; i
++)
227 *dcc_bufptr
&= *(buffer
++) | 0xffffff00;
230 *dcc_bufptr
&= ((*(buffer
++))<<8) | 0xffff00ff;
233 *dcc_bufptr
&= ((*(buffer
++))<<16) | 0xff00ffff;
236 *dcc_bufptr
&= ((*(buffer
++))<<24) | 0x00ffffff;
237 chksum
^= *(dcc_bufptr
++);
238 *dcc_bufptr
= 0xffffffff;
244 /* add the remaining word to checksum */
246 chksum
^= *(dcc_bufptr
++);
248 *(dcc_bufptr
++) = chksum
;
251 if ((retval
= embeddedice_send(ocl
->jtag_info
, dcc_buffer
, dcc_bufptr
-dcc_buffer
)) != ERROR_OK
)
257 /* wait for response, fixed timeout of 1 s */
258 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 1000) != ERROR_OK
))
260 if (retval
== ERROR_TARGET_TIMEOUT
)
261 LOG_ERROR("loader not responding");
266 /* receive response */
267 if ((retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
273 if (dcc_buffer
[0] != OCL_CMD_DONE
)
275 LOG_ERROR("loader response to OCL_FLASH_BLOCK 0x%08lX", dcc_buffer
[0]);
277 return ERROR_FLASH_OPERATION_FAILED
;
289 int ocl_probe(struct flash_bank_s
*bank
)
291 ocl_priv_t
*ocl
= bank
->driver_priv
;
297 /* purge pending data in DCC */
298 embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1);
300 dcc_buffer
[0] = OCL_PROBE
;
301 if ((retval
= embeddedice_send(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
304 /* wait for response, fixed timeout of 1 s */
305 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 1000) != ERROR_OK
))
307 if (retval
== ERROR_TARGET_TIMEOUT
)
308 LOG_ERROR("loader not responding");
312 /* receive response */
313 if ((retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
316 if (dcc_buffer
[0] != OCL_CMD_DONE
)
318 LOG_ERROR("loader response to OCL_PROBE 0x%08lX", dcc_buffer
[0]);
319 return ERROR_FLASH_OPERATION_FAILED
;
322 /* receive and fill in parameters, detection of loader is important, receive it one by one */
323 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 0) != ERROR_OK
)
324 || (retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
326 bank
->base
= dcc_buffer
[0];
328 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 0) != ERROR_OK
)
329 || (retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
331 bank
->size
= dcc_buffer
[0];
333 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 0) != ERROR_OK
)
334 || (retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
336 bank
->num_sectors
= dcc_buffer
[0];
338 if ((retval
= embeddedice_handshake(ocl
->jtag_info
, EICE_COMM_CTRL_WBIT
, 0) != ERROR_OK
)
339 || (retval
= embeddedice_receive(ocl
->jtag_info
, dcc_buffer
, 1) != ERROR_OK
))
341 ocl
->buflen
= dcc_buffer
[0] & 0xffff;
342 ocl
->bufalign
= dcc_buffer
[0] >> 16;
344 bank
->sectors
= realloc(bank
->sectors
, sizeof(flash_sector_t
)*bank
->num_sectors
);
345 if (bank
->num_sectors
== 0)
347 LOG_ERROR("number of sectors shall be non zero value");
348 return ERROR_FLASH_BANK_INVALID
;
350 if (bank
->size
% bank
->num_sectors
) {
351 LOG_ERROR("bank size not divisible by number of sectors");
352 return ERROR_FLASH_BANK_INVALID
;
354 sectsize
= bank
->size
/ bank
->num_sectors
;
355 for (i
=0; i
<bank
->num_sectors
; i
++)
357 bank
->sectors
[i
].offset
= i
* sectsize
;
358 bank
->sectors
[i
].size
= sectsize
;
359 bank
->sectors
[i
].is_erased
= -1;
360 bank
->sectors
[i
].is_protected
= -1;
363 if (ocl
->bufalign
== 0)
366 if (ocl
->buflen
== 0)
368 LOG_ERROR("buflen shall be non zero value");
369 return ERROR_FLASH_BANK_INVALID
;
372 if ((ocl
->bufalign
> ocl
->buflen
) || (ocl
->buflen
% ocl
->bufalign
))
374 LOG_ERROR("buflen is not multiple of bufalign");
375 return ERROR_FLASH_BANK_INVALID
;
380 LOG_ERROR("buflen shall be divisible by 4");
381 return ERROR_FLASH_BANK_INVALID
;
388 int ocl_info(struct flash_bank_s
*bank
, char *buf
, int buf_size
)
394 int ocl_auto_probe(struct flash_bank_s
*bank
)
396 ocl_priv_t
*ocl
= bank
->driver_priv
;
398 if (ocl
->buflen
== 0 || ocl
->bufalign
==0)
399 return ERROR_FLASH_BANK_NOT_PROBED
;
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