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 ***************************************************************************/
26 #include "replacements.h"
35 #include "binarybuffer.h"
36 #include "../target/embeddedice.h"
39 static int ecosflash_register_commands(struct command_context_s
*cmd_ctx
);
40 static int ecosflash_flash_bank_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
, struct flash_bank_s
*bank
);
41 static int ecosflash_erase(struct flash_bank_s
*bank
, int first
, int last
);
42 static int ecosflash_protect(struct flash_bank_s
*bank
, int set
, int first
, int last
);
43 static int ecosflash_write(struct flash_bank_s
*bank
, u8
*buffer
, u32 offset
, u32 count
);
44 static int ecosflash_probe(struct flash_bank_s
*bank
);
45 static int ecosflash_protect_check(struct flash_bank_s
*bank
);
46 static int ecosflash_info(struct flash_bank_s
*bank
, char *buf
, int buf_size
);
49 static u32
ecosflash_get_flash_status(flash_bank_t
*bank
);
50 static void ecosflash_set_flash_mode(flash_bank_t
*bank
,int mode
);
51 static u32
ecosflash_wait_status_busy(flash_bank_t
*bank
, u32 waitbits
, int timeout
);
52 static int ecosflash_handle_gpnvm_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
55 flash_driver_t ecosflash_flash
=
58 .register_commands
= ecosflash_register_commands
,
59 .flash_bank_command
= ecosflash_flash_bank_command
,
60 .erase
= ecosflash_erase
,
61 .protect
= ecosflash_protect
,
62 .write
= ecosflash_write
,
63 .probe
= ecosflash_probe
,
64 .auto_probe
= ecosflash_probe
,
65 .erase_check
= default_flash_blank_check
,
66 .protect_check
= ecosflash_protect_check
,
67 .info
= ecosflash_info
70 typedef struct ecosflash_flash_bank_s
72 struct target_s
*target
;
73 working_area_t
*write_algorithm
;
74 working_area_t
*erase_check_algorithm
;
77 } ecosflash_flash_bank_t
;
79 static const int sectorSize
=0x10000;
82 flash_errmsg(int err
);
85 #define FLASH_ERR_OK 0x00 /* No error - operation complete */
86 #define FLASH_ERR_INVALID 0x01 /* Invalid FLASH address */
87 #define FLASH_ERR_ERASE 0x02 /* Error trying to erase */
88 #define FLASH_ERR_LOCK 0x03 /* Error trying to lock/unlock */
89 #define FLASH_ERR_PROGRAM 0x04 /* Error trying to program */
90 #define FLASH_ERR_PROTOCOL 0x05 /* Generic error */
91 #define FLASH_ERR_PROTECT 0x06 /* Device/region is write-protected */
92 #define FLASH_ERR_NOT_INIT 0x07 /* FLASH info not yet initialized */
93 #define FLASH_ERR_HWR 0x08 /* Hardware (configuration?) problem */
94 #define FLASH_ERR_ERASE_SUSPEND 0x09 /* Device is in erase suspend mode */
95 #define FLASH_ERR_PROGRAM_SUSPEND 0x0a /* Device is in in program suspend mode */
96 #define FLASH_ERR_DRV_VERIFY 0x0b /* Driver failed to verify data */
97 #define FLASH_ERR_DRV_TIMEOUT 0x0c /* Driver timed out waiting for device */
98 #define FLASH_ERR_DRV_WRONG_PART 0x0d /* Driver does not support device */
99 #define FLASH_ERR_LOW_VOLTAGE 0x0e /* Not enough juice to complete job */
102 flash_errmsg(int err
)
106 return "No error - operation complete";
107 case FLASH_ERR_ERASE_SUSPEND
:
108 return "Device is in erase suspend state";
109 case FLASH_ERR_PROGRAM_SUSPEND
:
110 return "Device is in program suspend state";
111 case FLASH_ERR_INVALID
:
112 return "Invalid FLASH address";
113 case FLASH_ERR_ERASE
:
114 return "Error trying to erase";
116 return "Error trying to lock/unlock";
117 case FLASH_ERR_PROGRAM
:
118 return "Error trying to program";
119 case FLASH_ERR_PROTOCOL
:
120 return "Generic error";
121 case FLASH_ERR_PROTECT
:
122 return "Device/region is write-protected";
123 case FLASH_ERR_NOT_INIT
:
124 return "FLASH sub-system not initialized";
125 case FLASH_ERR_DRV_VERIFY
:
126 return "Data verify failed after operation";
127 case FLASH_ERR_DRV_TIMEOUT
:
128 return "Driver timed out waiting for device";
129 case FLASH_ERR_DRV_WRONG_PART
:
130 return "Driver does not support device";
131 case FLASH_ERR_LOW_VOLTAGE
:
132 return "Device reports low voltage";
134 return "Unknown error";
139 /* flash bank ecosflash <base> <size> <chip_width> <bus_width> <target#> <driverPath>
141 static int ecosflash_flash_bank_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
, struct flash_bank_s
*bank
)
143 ecosflash_flash_bank_t
*info
;
147 LOG_WARNING("incomplete flash_bank ecosflash configuration");
148 return ERROR_FLASH_BANK_INVALID
;
151 info
= malloc(sizeof(ecosflash_flash_bank_t
));
154 LOG_ERROR("no memory for flash bank info");
157 bank
->driver_priv
= info
;
158 info
->driverPath
=strdup(args
[6]);
160 /* eCos flash sector sizes are not exposed to OpenOCD, use 0x10000 as
161 * a way to improve impeadance matach between OpenOCD and eCos flash
166 bank
->num_sectors
=bank
->size
/sectorSize
;
167 bank
->sectors
= malloc(sizeof(flash_sector_t
) * bank
->num_sectors
);
168 for (i
= 0; i
< bank
->num_sectors
; i
++)
170 bank
->sectors
[i
].offset
= offset
;
171 bank
->sectors
[i
].size
= sectorSize
;
172 offset
+= bank
->sectors
[i
].size
;
173 bank
->sectors
[i
].is_erased
= -1;
174 bank
->sectors
[i
].is_protected
= 0;
177 info
->target
= get_target_by_num(strtoul(args
[5], NULL
, 0));
178 if (info
->target
== NULL
)
180 LOG_ERROR("no target '%i' configured", (int)strtoul(args
[5], NULL
, 0));
186 static int loadDriver(ecosflash_flash_bank_t
*info
)
192 image
.base_address_set
= 0;
193 image
.start_address_set
= 0;
194 target_t
*target
=info
->target
;
197 if ((retval
=image_open(&image
, info
->driverPath
, NULL
)) != ERROR_OK
)
202 info
->start_address
=image
.start_address
;
206 for (i
= 0; i
< image
.num_sections
; i
++)
208 void *buffer
= malloc(image
.sections
[i
].size
);
210 if ((retval
= image_read_section(&image
, i
, 0x0, image
.sections
[i
].size
, buffer
, &buf_cnt
)) != ERROR_OK
)
216 target_write_buffer(target
, image
.sections
[i
].base_address
, buf_cnt
, buffer
);
217 image_size
+= buf_cnt
;
218 LOG_DEBUG("%u byte written at address 0x%8.8x", buf_cnt
, image
.sections
[i
].base_address
);
228 static int const OFFSET_ERASE
=0x0;
229 static int const OFFSET_ERASE_SIZE
=0x8;
230 static int const OFFSET_FLASH
=0xc;
231 static int const OFFSET_FLASH_SIZE
=0x8;
232 static int const OFFSET_GET_WORKAREA
=0x18;
233 static int const OFFSET_GET_WORKAREA_SIZE
=0x4;
235 static int runCode(ecosflash_flash_bank_t
*info
,
236 u32 codeStart
, u32 codeStop
, u32 r0
, u32 r1
, u32 r2
,
241 target_t
*target
=info
->target
;
243 reg_param_t reg_params
[3];
244 armv4_5_algorithm_t armv4_5_info
;
245 armv4_5_info
.common_magic
= ARMV4_5_COMMON_MAGIC
;
246 armv4_5_info
.core_mode
= ARMV4_5_MODE_SVC
;
247 armv4_5_info
.core_state
= ARMV4_5_STATE_ARM
;
249 init_reg_param(®_params
[0], "r0", 32, PARAM_IN_OUT
);
250 init_reg_param(®_params
[1], "r1", 32, PARAM_OUT
);
251 init_reg_param(®_params
[2], "r2", 32, PARAM_OUT
);
253 buf_set_u32(reg_params
[0].value
, 0, 32, r0
);
254 buf_set_u32(reg_params
[1].value
, 0, 32, r1
);
255 buf_set_u32(reg_params
[2].value
, 0, 32, r2
);
258 if ((retval
= target
->type
->run_algorithm(target
, 0, NULL
, 3, reg_params
,
261 &armv4_5_info
)) != ERROR_OK
)
263 LOG_ERROR("error executing eCos flash algorithm");
267 *result
=buf_get_u32(reg_params
[0].value
, 0, 32);
269 destroy_reg_param(®_params
[0]);
270 destroy_reg_param(®_params
[1]);
271 destroy_reg_param(®_params
[2]);
276 static int eCosBoard_erase(ecosflash_flash_bank_t
*info
, u32 address
, u32 len
)
279 int timeout
= (len
/ 20480 + 1) * 1000; /*asume 20 KB/s*/
281 retval
=loadDriver(info
);
282 if (retval
!=ERROR_OK
)
287 info
->start_address
+OFFSET_ERASE
,
288 info
->start_address
+OFFSET_ERASE
+OFFSET_ERASE_SIZE
,
295 if (retval
!=ERROR_OK
)
300 LOG_ERROR("Flash erase failed with %d (%s)\n", flashErr
, flash_errmsg(flashErr
));
307 static int eCosBoard_flash(ecosflash_flash_bank_t
*info
, void *data
, u32 address
, u32 len
)
309 target_t
*target
=info
->target
;
310 const int chunk
=8192;
312 int timeout
= (chunk
/ 20480 + 1) * 1000; /*asume 20 KB/s + 1 second*/
314 retval
=loadDriver(info
);
315 if (retval
!=ERROR_OK
)
320 info
->start_address
+OFFSET_GET_WORKAREA
,
321 info
->start_address
+OFFSET_GET_WORKAREA
+OFFSET_GET_WORKAREA_SIZE
,
327 if (retval
!=ERROR_OK
)
332 for (i
=0; i
<len
; i
+=chunk
)
341 retval
=target_write_buffer(target
, buffer
, t
, ((u8
*)data
)+i
);
342 if (retval
!= ERROR_OK
)
347 info
->start_address
+OFFSET_FLASH
,
348 info
->start_address
+OFFSET_FLASH
+OFFSET_FLASH_SIZE
,
354 if (retval
!= ERROR_OK
)
359 LOG_ERROR("Flash prog failed with %d (%s)\n", flashErr
, flash_errmsg(flashErr
));
366 static int ecosflash_probe(struct flash_bank_s
*bank
)
371 static int ecosflash_register_commands(struct command_context_s
*cmd_ctx
)
373 register_command(cmd_ctx
, NULL
, "ecosflash", NULL
, COMMAND_ANY
, NULL
);
379 static void command(flash_bank_t
*bank
, u8 cmd
, u8
*cmd_buf
)
381 ecosflash_flash_bank_t
*info
= bank
->driver_priv
;
384 if (info
->target
->endianness
== TARGET_LITTLE_ENDIAN
)
386 for (i
= bank
->bus_width
; i
> 0; i
--)
388 *cmd_buf
++ = (i
& (bank
->chip_width
- 1)) ? 0x0 : cmd
;
393 for (i
= 1; i
<= bank
->bus_width
; i
++)
395 *cmd_buf
++ = (i
& (bank
->chip_width
- 1)) ? 0x0 : cmd
;
402 static u32
ecosflash_address(struct flash_bank_s
*bank
, u32 address
)
405 switch(bank
->bus_width
)
408 retval
= address
& 0xfffffffc;
410 retval
= address
& 0xfffffffe;
415 return retval
+ bank
->base
;
419 static int ecosflash_erase(struct flash_bank_s
*bank
, int first
, int last
)
421 struct flash_bank_s
*c
=bank
;
422 ecosflash_flash_bank_t
*info
= bank
->driver_priv
;
423 return eCosBoard_erase(info
, c
->base
+first
*sectorSize
, sectorSize
*(last
-first
+1));
426 static int ecosflash_protect(struct flash_bank_s
*bank
, int set
, int first
, int last
)
431 static int ecosflash_write(struct flash_bank_s
*bank
, u8
*buffer
, u32 offset
, u32 count
)
433 ecosflash_flash_bank_t
*info
= bank
->driver_priv
;
434 struct flash_bank_s
*c
=bank
;
435 return eCosBoard_flash(info
, buffer
, c
->base
+offset
, count
);
438 static int ecosflash_protect_check(struct flash_bank_s
*bank
)
443 static int ecosflash_info(struct flash_bank_s
*bank
, char *buf
, int buf_size
)
445 ecosflash_flash_bank_t
*info
= bank
->driver_priv
;
446 snprintf(buf
, buf_size
, "eCos flash driver: %s", info
->driverPath
);
451 static u32
ecosflash_get_flash_status(flash_bank_t
*bank
)
456 static void ecosflash_set_flash_mode(flash_bank_t
*bank
,int mode
)
461 static u32
ecosflash_wait_status_busy(flash_bank_t
*bank
, u32 waitbits
, int timeout
)
466 static int ecosflash_handle_gpnvm_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
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