1 /***************************************************************************
2 * Copyright (C) 2007,2008 Øyvind Harboe *
3 * oyvind.harboe@zylin.com *
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 ***************************************************************************/
25 #include "embeddedice.h"
29 static int ecosflash_register_commands(struct command_context_s
*cmd_ctx
);
30 static int ecosflash_flash_bank_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
, struct flash_bank_s
*bank
);
31 static int ecosflash_erase(struct flash_bank_s
*bank
, int first
, int last
);
32 static int ecosflash_protect(struct flash_bank_s
*bank
, int set
, int first
, int last
);
33 static int ecosflash_write(struct flash_bank_s
*bank
, uint8_t *buffer
, uint32_t offset
, uint32_t count
);
34 static int ecosflash_probe(struct flash_bank_s
*bank
);
35 static int ecosflash_protect_check(struct flash_bank_s
*bank
);
36 static int ecosflash_info(struct flash_bank_s
*bank
, char *buf
, int buf_size
);
39 static uint32_t ecosflash_get_flash_status(flash_bank_t
*bank
);
40 static void ecosflash_set_flash_mode(flash_bank_t
*bank
,int mode
);
41 static uint32_t ecosflash_wait_status_busy(flash_bank_t
*bank
, uint32_t waitbits
, int timeout
);
42 static int ecosflash_handle_gpnvm_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
45 flash_driver_t ecosflash_flash
=
48 .register_commands
= ecosflash_register_commands
,
49 .flash_bank_command
= ecosflash_flash_bank_command
,
50 .erase
= ecosflash_erase
,
51 .protect
= ecosflash_protect
,
52 .write
= ecosflash_write
,
53 .probe
= ecosflash_probe
,
54 .auto_probe
= ecosflash_probe
,
55 .erase_check
= default_flash_blank_check
,
56 .protect_check
= ecosflash_protect_check
,
57 .info
= ecosflash_info
60 typedef struct ecosflash_flash_bank_s
62 struct target_s
*target
;
63 working_area_t
*write_algorithm
;
64 working_area_t
*erase_check_algorithm
;
66 uint32_t start_address
;
67 } ecosflash_flash_bank_t
;
69 static const int sectorSize
= 0x10000;
72 flash_errmsg(int err
);
75 #define FLASH_ERR_OK 0x00 /* No error - operation complete */
76 #define FLASH_ERR_INVALID 0x01 /* Invalid FLASH address */
77 #define FLASH_ERR_ERASE 0x02 /* Error trying to erase */
78 #define FLASH_ERR_LOCK 0x03 /* Error trying to lock/unlock */
79 #define FLASH_ERR_PROGRAM 0x04 /* Error trying to program */
80 #define FLASH_ERR_PROTOCOL 0x05 /* Generic error */
81 #define FLASH_ERR_PROTECT 0x06 /* Device/region is write-protected */
82 #define FLASH_ERR_NOT_INIT 0x07 /* FLASH info not yet initialized */
83 #define FLASH_ERR_HWR 0x08 /* Hardware (configuration?) problem */
84 #define FLASH_ERR_ERASE_SUSPEND 0x09 /* Device is in erase suspend mode */
85 #define FLASH_ERR_PROGRAM_SUSPEND 0x0a /* Device is in in program suspend mode */
86 #define FLASH_ERR_DRV_VERIFY 0x0b /* Driver failed to verify data */
87 #define FLASH_ERR_DRV_TIMEOUT 0x0c /* Driver timed out waiting for device */
88 #define FLASH_ERR_DRV_WRONG_PART 0x0d /* Driver does not support device */
89 #define FLASH_ERR_LOW_VOLTAGE 0x0e /* Not enough juice to complete job */
96 return "No error - operation complete";
97 case FLASH_ERR_ERASE_SUSPEND
:
98 return "Device is in erase suspend state";
99 case FLASH_ERR_PROGRAM_SUSPEND
:
100 return "Device is in program suspend state";
101 case FLASH_ERR_INVALID
:
102 return "Invalid FLASH address";
103 case FLASH_ERR_ERASE
:
104 return "Error trying to erase";
106 return "Error trying to lock/unlock";
107 case FLASH_ERR_PROGRAM
:
108 return "Error trying to program";
109 case FLASH_ERR_PROTOCOL
:
110 return "Generic error";
111 case FLASH_ERR_PROTECT
:
112 return "Device/region is write-protected";
113 case FLASH_ERR_NOT_INIT
:
114 return "FLASH sub-system not initialized";
115 case FLASH_ERR_DRV_VERIFY
:
116 return "Data verify failed after operation";
117 case FLASH_ERR_DRV_TIMEOUT
:
118 return "Driver timed out waiting for device";
119 case FLASH_ERR_DRV_WRONG_PART
:
120 return "Driver does not support device";
121 case FLASH_ERR_LOW_VOLTAGE
:
122 return "Device reports low voltage";
124 return "Unknown error";
129 /* flash bank ecosflash <base> <size> <chip_width> <bus_width> <target#> <driverPath>
131 static int ecosflash_flash_bank_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
, struct flash_bank_s
*bank
)
133 ecosflash_flash_bank_t
*info
;
137 LOG_WARNING("incomplete flash_bank ecosflash configuration");
138 return ERROR_FLASH_BANK_INVALID
;
141 info
= malloc(sizeof(ecosflash_flash_bank_t
));
144 LOG_ERROR("no memory for flash bank info");
147 bank
->driver_priv
= info
;
148 info
->driverPath
= strdup(args
[6]);
150 /* eCos flash sector sizes are not exposed to OpenOCD, use 0x10000 as
151 * a way to improve impeadance matach between OpenOCD and eCos flash
156 bank
->num_sectors
= bank
->size
/sectorSize
;
157 bank
->sectors
= malloc(sizeof(flash_sector_t
) * bank
->num_sectors
);
158 for (i
= 0; i
< bank
->num_sectors
; i
++)
160 bank
->sectors
[i
].offset
= offset
;
161 bank
->sectors
[i
].size
= sectorSize
;
162 offset
+= bank
->sectors
[i
].size
;
163 bank
->sectors
[i
].is_erased
= -1;
164 bank
->sectors
[i
].is_protected
= 0;
167 info
->target
= get_target(args
[5]);
168 if (info
->target
== NULL
)
170 LOG_ERROR("target '%s' not defined", args
[5]);
176 static int loadDriver(ecosflash_flash_bank_t
*info
)
182 image
.base_address_set
= 0;
183 image
.start_address_set
= 0;
184 target_t
*target
= info
->target
;
187 if ((retval
= image_open(&image
, info
->driverPath
, NULL
)) != ERROR_OK
)
192 info
->start_address
= image
.start_address
;
196 for (i
= 0; i
< image
.num_sections
; i
++)
198 void *buffer
= malloc(image
.sections
[i
].size
);
200 if ((retval
= image_read_section(&image
, i
, 0x0, image
.sections
[i
].size
, buffer
, &buf_cnt
)) != ERROR_OK
)
206 target_write_buffer(target
, image
.sections
[i
].base_address
, buf_cnt
, buffer
);
207 image_size
+= buf_cnt
;
208 LOG_DEBUG("%" PRIu32
" byte written at address 0x%8.8" PRIx32
"", buf_cnt
, image
.sections
[i
].base_address
);
218 static int const OFFSET_ERASE
= 0x0;
219 static int const OFFSET_ERASE_SIZE
= 0x8;
220 static int const OFFSET_FLASH
= 0xc;
221 static int const OFFSET_FLASH_SIZE
= 0x8;
222 static int const OFFSET_GET_WORKAREA
= 0x18;
223 static int const OFFSET_GET_WORKAREA_SIZE
= 0x4;
225 static int runCode(ecosflash_flash_bank_t
*info
,
226 uint32_t codeStart
, uint32_t codeStop
, uint32_t r0
, uint32_t r1
, uint32_t r2
,
231 target_t
*target
= info
->target
;
233 reg_param_t reg_params
[3];
234 armv4_5_algorithm_t armv4_5_info
;
235 armv4_5_info
.common_magic
= ARMV4_5_COMMON_MAGIC
;
236 armv4_5_info
.core_mode
= ARMV4_5_MODE_SVC
;
237 armv4_5_info
.core_state
= ARMV4_5_STATE_ARM
;
239 init_reg_param(®_params
[0], "r0", 32, PARAM_IN_OUT
);
240 init_reg_param(®_params
[1], "r1", 32, PARAM_OUT
);
241 init_reg_param(®_params
[2], "r2", 32, PARAM_OUT
);
243 buf_set_u32(reg_params
[0].value
, 0, 32, r0
);
244 buf_set_u32(reg_params
[1].value
, 0, 32, r1
);
245 buf_set_u32(reg_params
[2].value
, 0, 32, r2
);
248 if ((retval
= target_run_algorithm(target
, 0, NULL
, 3, reg_params
,
251 &armv4_5_info
)) != ERROR_OK
)
253 LOG_ERROR("error executing eCos flash algorithm");
257 *result
= buf_get_u32(reg_params
[0].value
, 0, 32);
259 destroy_reg_param(®_params
[0]);
260 destroy_reg_param(®_params
[1]);
261 destroy_reg_param(®_params
[2]);
266 static int eCosBoard_erase(ecosflash_flash_bank_t
*info
, uint32_t address
, uint32_t len
)
269 int timeout
= (len
/ 20480 + 1) * 1000; /*asume 20 KB/s*/
271 retval
= loadDriver(info
);
272 if (retval
!= ERROR_OK
)
276 retval
= runCode(info
,
277 info
->start_address
+ OFFSET_ERASE
,
278 info
->start_address
+ OFFSET_ERASE
+ OFFSET_ERASE_SIZE
,
285 if (retval
!= ERROR_OK
)
290 LOG_ERROR("Flash erase failed with %d (%s)\n", (int)flashErr
, flash_errmsg(flashErr
));
297 static int eCosBoard_flash(ecosflash_flash_bank_t
*info
, void *data
, uint32_t address
, uint32_t len
)
299 target_t
*target
= info
->target
;
300 const int chunk
= 8192;
301 int retval
= ERROR_OK
;
302 int timeout
= (chunk
/ 20480 + 1) * 1000; /*asume 20 KB/s + 1 second*/
304 retval
= loadDriver(info
);
305 if (retval
!= ERROR_OK
)
309 retval
= runCode(info
,
310 info
->start_address
+ OFFSET_GET_WORKAREA
,
311 info
->start_address
+ OFFSET_GET_WORKAREA
+ OFFSET_GET_WORKAREA_SIZE
,
317 if (retval
!= ERROR_OK
)
322 for (i
= 0; i
< len
; i
+= chunk
)
331 retval
= target_write_buffer(target
, buffer
, t
, ((uint8_t *)data
) + i
);
332 if (retval
!= ERROR_OK
)
336 retval
= runCode(info
,
337 info
->start_address
+ OFFSET_FLASH
,
338 info
->start_address
+ OFFSET_FLASH
+ OFFSET_FLASH_SIZE
,
344 if (retval
!= ERROR_OK
)
349 LOG_ERROR("Flash prog failed with %d (%s)\n", (int)flashErr
, flash_errmsg(flashErr
));
356 static int ecosflash_probe(struct flash_bank_s
*bank
)
361 static int ecosflash_register_commands(struct command_context_s
*cmd_ctx
)
363 register_command(cmd_ctx
, NULL
, "ecosflash", NULL
, COMMAND_ANY
, NULL
);
369 static void command(flash_bank_t
*bank
, uint8_t cmd
, uint8_t *cmd_buf
)
371 ecosflash_flash_bank_t
*info
= bank
->driver_priv
;
374 if (info
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
376 for (i
= bank
->bus_width
; i
> 0; i
--)
378 *cmd_buf
++ = (i
& (bank
->chip_width
- 1)) ? 0x0 : cmd
;
383 for (i
= 1; i
<= bank
->bus_width
; i
++)
385 *cmd_buf
++ = (i
& (bank
->chip_width
- 1)) ? 0x0 : cmd
;
392 static uint32_t ecosflash_address(struct flash_bank_s
*bank
, uint32_t address
)
395 switch (bank
->bus_width
)
398 retval
= address
& 0xfffffffc;
400 retval
= address
& 0xfffffffe;
405 return retval
+ bank
->base
;
409 static int ecosflash_erase(struct flash_bank_s
*bank
, int first
, int last
)
411 struct flash_bank_s
*c
= bank
;
412 ecosflash_flash_bank_t
*info
= bank
->driver_priv
;
413 return eCosBoard_erase(info
, c
->base
+ first
*sectorSize
, sectorSize
*(last
-first
+ 1));
416 static int ecosflash_protect(struct flash_bank_s
*bank
, int set
, int first
, int last
)
421 static int ecosflash_write(struct flash_bank_s
*bank
, uint8_t *buffer
, uint32_t offset
, uint32_t count
)
423 ecosflash_flash_bank_t
*info
= bank
->driver_priv
;
424 struct flash_bank_s
*c
= bank
;
425 return eCosBoard_flash(info
, buffer
, c
->base
+ offset
, count
);
428 static int ecosflash_protect_check(struct flash_bank_s
*bank
)
433 static int ecosflash_info(struct flash_bank_s
*bank
, char *buf
, int buf_size
)
435 ecosflash_flash_bank_t
*info
= bank
->driver_priv
;
436 snprintf(buf
, buf_size
, "eCos flash driver: %s", info
->driverPath
);
441 static uint32_t ecosflash_get_flash_status(flash_bank_t
*bank
)
446 static void ecosflash_set_flash_mode(flash_bank_t
*bank
,int mode
)
451 static uint32_t ecosflash_wait_status_busy(flash_bank_t
*bank
, uint32_t waitbits
, int timeout
)
456 static int ecosflash_handle_gpnvm_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
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