1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
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 "algorithm.h"
32 #include "binarybuffer.h"
38 str9x_mem_layout_t mem_layout_str9[] = {
39 {0x00000000, 0x10000, 0x01},
40 {0x00010000, 0x10000, 0x02},
41 {0x00020000, 0x10000, 0x04},
42 {0x00030000, 0x10000, 0x08},
43 {0x00040000, 0x10000, 0x10},
44 {0x00050000, 0x10000, 0x20},
45 {0x00060000, 0x10000, 0x40},
46 {0x00070000, 0x10000, 0x80},
47 {0x00080000, 0x02000, 0x100},
48 {0x00082000, 0x02000, 0x200},
49 {0x00084000, 0x02000, 0x400},
50 {0x00086000, 0x02000, 0x800}
53 int str9x_register_commands(struct command_context_s *cmd_ctx);
54 int str9x_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
55 int str9x_erase(struct flash_bank_s *bank, int first, int last);
56 int str9x_protect(struct flash_bank_s *bank, int set, int first, int last);
57 int str9x_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
58 int str9x_probe(struct flash_bank_s *bank);
59 int str9x_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
60 int str9x_protect_check(struct flash_bank_s *bank);
61 int str9x_erase_check(struct flash_bank_s *bank);
62 int str9x_info(struct flash_bank_s *bank, char *buf, int buf_size);
64 int str9x_handle_flash_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
66 flash_driver_t str9x_flash =
69 .register_commands = str9x_register_commands,
70 .flash_bank_command = str9x_flash_bank_command,
72 .protect = str9x_protect,
75 .erase_check = str9x_erase_check,
76 .protect_check = str9x_protect_check,
80 int str9x_register_commands(struct command_context_s *cmd_ctx)
82 command_t *str9x_cmd = register_command(cmd_ctx, NULL, "str9x", NULL, COMMAND_ANY, NULL);
84 register_command(cmd_ctx, str9x_cmd, "flash_config", str9x_handle_flash_config_command, COMMAND_EXEC,
85 "configure str9 flash controller");
90 int str9x_build_block_list(struct flash_bank_s *bank)
92 str9x_flash_bank_t *str9x_info = bank->driver_priv;
95 int num_sectors = 0, b0_sectors = 0;
106 ERROR("BUG: unknown bank->size encountered");
110 num_sectors = b0_sectors + 4;
112 bank->num_sectors = num_sectors;
113 bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors);
114 str9x_info->sector_bits = malloc(sizeof(u32) * num_sectors);
118 for (i = 0; i < b0_sectors; i++)
120 bank->sectors[num_sectors].offset = mem_layout_str9[i].sector_start;
121 bank->sectors[num_sectors].size = mem_layout_str9[i].sector_size;
122 bank->sectors[num_sectors].is_erased = -1;
123 bank->sectors[num_sectors].is_protected = 1;
124 str9x_info->sector_bits[num_sectors++] = mem_layout_str9[i].sector_bit;
127 for (i = 8; i < 12; i++)
129 bank->sectors[num_sectors].offset = mem_layout_str9[i].sector_start;
130 bank->sectors[num_sectors].size = mem_layout_str9[i].sector_size;
131 bank->sectors[num_sectors].is_erased = -1;
132 bank->sectors[num_sectors].is_protected = 1;
133 str9x_info->sector_bits[num_sectors++] = mem_layout_str9[i].sector_bit;
139 /* flash bank str9x <base> <size> 0 0 <target#>
141 int str9x_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
143 str9x_flash_bank_t *str9x_info;
147 WARNING("incomplete flash_bank str9x configuration");
148 return ERROR_FLASH_BANK_INVALID;
151 str9x_info = malloc(sizeof(str9x_flash_bank_t));
152 bank->driver_priv = str9x_info;
154 if (bank->base != 0x00000000)
156 WARNING("overriding flash base address for STR91x device with 0x00000000");
157 bank->base = 0x00000000;
160 str9x_build_block_list(bank);
162 str9x_info->write_algorithm = NULL;
167 int str9x_blank_check(struct flash_bank_s *bank, int first, int last)
169 target_t *target = bank->target;
174 if ((first < 0) || (last > bank->num_sectors))
175 return ERROR_FLASH_SECTOR_INVALID;
177 if (bank->target->state != TARGET_HALTED)
179 return ERROR_TARGET_NOT_HALTED;
182 buffer = malloc(256);
184 for (i = first; i <= last; i++)
186 bank->sectors[i].is_erased = 1;
188 target->type->read_memory(target, bank->base + bank->sectors[i].offset, 4, 256/4, buffer);
190 for (nBytes = 0; nBytes < 256; nBytes++)
192 if (buffer[nBytes] != 0xFF)
194 bank->sectors[i].is_erased = 0;
205 int str9x_protect_check(struct flash_bank_s *bank)
207 str9x_flash_bank_t *str9x_info = bank->driver_priv;
208 target_t *target = bank->target;
214 if (bank->target->state != TARGET_HALTED)
216 return ERROR_TARGET_NOT_HALTED;
219 /* read level one protection */
221 adr = mem_layout_str9[10].sector_start + 4;
223 target_write_u32(target, adr, 0x90);
224 target_read_u16(target, adr, &status);
225 target_write_u32(target, adr, 0xFF);
227 for (i = 0; i < bank->num_sectors; i++)
229 if (status & str9x_info->sector_bits[i])
230 bank->sectors[i].is_protected = 1;
232 bank->sectors[i].is_protected = 0;
238 int str9x_erase(struct flash_bank_s *bank, int first, int last)
240 target_t *target = bank->target;
245 if (bank->target->state != TARGET_HALTED)
247 return ERROR_TARGET_NOT_HALTED;
250 for (i = first; i <= last; i++)
252 adr = bank->sectors[i].offset;
255 target_write_u16(target, adr, 0x20);
256 target_write_u16(target, adr, 0xD0);
259 target_write_u16(target, adr, 0x70);
262 target_read_u8(target, adr, &status);
268 /* clear status, also clear read array */
269 target_write_u16(target, adr, 0x50);
271 /* read array command */
272 target_write_u16(target, adr, 0xFF);
276 ERROR("error erasing flash bank, status: 0x%x", status);
277 return ERROR_FLASH_OPERATION_FAILED;
281 for (i = first; i <= last; i++)
282 bank->sectors[i].is_erased = 1;
287 int str9x_protect(struct flash_bank_s *bank, int set, int first, int last)
289 target_t *target = bank->target;
294 if (bank->target->state != TARGET_HALTED)
296 return ERROR_TARGET_NOT_HALTED;
299 for (i = first; i <= last; i++)
301 /* Level One Protection */
303 adr = bank->sectors[i].offset;
305 target_write_u16(target, adr, 0x60);
307 target_write_u16(target, adr, 0x01);
309 target_write_u16(target, adr, 0xD0);
312 target_read_u8(target, adr, &status);
318 int str9x_write_block(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
320 str9x_flash_bank_t *str9x_info = bank->driver_priv;
321 target_t *target = bank->target;
322 u32 buffer_size = 8192;
323 working_area_t *source;
324 u32 address = bank->base + offset;
325 reg_param_t reg_params[4];
326 armv4_5_algorithm_t armv4_5_info;
329 u32 str9x_flash_write_code[] = {
331 0xe3c14003, /* bic r4, r1, #3 */
332 0xe3a03040, /* mov r3, #0x40 */
333 0xe1c430b0, /* strh r3, [r4, #0] */
334 0xe0d030b2, /* ldrh r3, [r0], #2 */
335 0xe0c130b2, /* strh r3, [r1], #2 */
336 0xe3a03070, /* mov r3, #0x70 */
337 0xe1c430b0, /* strh r3, [r4, #0] */
339 0xe5d43000, /* ldrb r3, [r4, #0] */
340 0xe3130080, /* tst r3, #0x80 */
341 0x0afffffc, /* beq busy */
342 0xe3a05050, /* mov r5, #0x50 */
343 0xe1c450b0, /* strh r5, [r4, #0] */
344 0xe3a050ff, /* mov r5, #0xFF */
345 0xe1c450b0, /* strh r5, [r4, #0] */
346 0xe3130012, /* tst r3, #0x12 */
347 0x1a000001, /* bne exit */
348 0xe2522001, /* subs r2, r2, #1 */
349 0x1affffed, /* bne write */
351 0xeafffffe, /* b exit */
354 u8 str9x_flash_write_code_buf[76];
357 /* flash write code */
358 if (!str9x_info->write_algorithm)
360 if (target_alloc_working_area(target, 4 * 19, &str9x_info->write_algorithm) != ERROR_OK)
362 WARNING("no working area available, can't do block memory writes");
363 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
366 /* convert flash writing code into a buffer in target endianness */
367 for (i = 0; i < 19; i++)
368 target_buffer_set_u32(target, str9x_flash_write_code_buf + i*4, str9x_flash_write_code[i]);
370 target_write_buffer(target, str9x_info->write_algorithm->address, 19 * 4, str9x_flash_write_code_buf);
374 while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
377 if (buffer_size <= 256)
379 /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */
380 if (str9x_info->write_algorithm)
381 target_free_working_area(target, str9x_info->write_algorithm);
383 WARNING("no large enough working area available, can't do block memory writes");
384 return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
388 armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
389 armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
390 armv4_5_info.core_state = ARMV4_5_STATE_ARM;
392 init_reg_param(®_params[0], "r0", 32, PARAM_OUT);
393 init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
394 init_reg_param(®_params[2], "r2", 32, PARAM_OUT);
395 init_reg_param(®_params[3], "r3", 32, PARAM_IN);
399 u32 thisrun_count = (count > (buffer_size / 2)) ? (buffer_size / 2) : count;
401 target_write_buffer(target, source->address, thisrun_count * 2, buffer);
403 buf_set_u32(reg_params[0].value, 0, 32, source->address);
404 buf_set_u32(reg_params[1].value, 0, 32, address);
405 buf_set_u32(reg_params[2].value, 0, 32, thisrun_count);
407 if ((retval = target->type->run_algorithm(target, 0, NULL, 4, reg_params, str9x_info->write_algorithm->address, str9x_info->write_algorithm->address + (18 * 4), 10000, &armv4_5_info)) != ERROR_OK)
409 ERROR("error executing str9x flash write algorithm");
410 return ERROR_FLASH_OPERATION_FAILED;
413 if (buf_get_u32(reg_params[3].value, 0, 32) != 0x80)
415 return ERROR_FLASH_OPERATION_FAILED;
418 buffer += thisrun_count * 2;
419 address += thisrun_count * 2;
420 count -= thisrun_count;
423 destroy_reg_param(®_params[0]);
424 destroy_reg_param(®_params[1]);
425 destroy_reg_param(®_params[2]);
426 destroy_reg_param(®_params[3]);
431 int str9x_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
433 target_t *target = bank->target;
434 u32 words_remaining = (count / 2);
435 u32 bytes_remaining = (count & 0x00000001);
436 u32 address = bank->base + offset;
437 u32 bytes_written = 0;
440 u32 check_address = offset;
444 if (bank->target->state != TARGET_HALTED)
446 return ERROR_TARGET_NOT_HALTED;
451 WARNING("offset 0x%x breaks required 2-byte alignment", offset);
452 return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
455 for (i = 0; i < bank->num_sectors; i++)
457 u32 sec_start = bank->sectors[i].offset;
458 u32 sec_end = sec_start + bank->sectors[i].size;
460 /* check if destination falls within the current sector */
461 if ((check_address >= sec_start) && (check_address < sec_end))
463 /* check if destination ends in the current sector */
464 if (offset + count < sec_end)
465 check_address = offset + count;
467 check_address = sec_end;
471 if (check_address != offset + count)
472 return ERROR_FLASH_DST_OUT_OF_BANK;
474 /* multiple half words (2-byte) to be programmed? */
475 if (words_remaining > 0)
477 /* try using a block write */
478 if ((retval = str9x_write_block(bank, buffer, offset, words_remaining)) != ERROR_OK)
480 if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
482 /* if block write failed (no sufficient working area),
483 * we use normal (slow) single dword accesses */
484 WARNING("couldn't use block writes, falling back to single memory accesses");
486 else if (retval == ERROR_FLASH_OPERATION_FAILED)
488 ERROR("flash writing failed with error code: 0x%x", retval);
489 return ERROR_FLASH_OPERATION_FAILED;
494 buffer += words_remaining * 2;
495 address += words_remaining * 2;
500 while (words_remaining > 0)
502 bank_adr = address & ~0x03;
504 /* write data command */
505 target_write_u16(target, bank_adr, 0x40);
506 target->type->write_memory(target, address, 2, 1, buffer + bytes_written);
508 /* get status command */
509 target_write_u16(target, bank_adr, 0x70);
512 target_read_u8(target, bank_adr, &status);
518 /* clear status reg and read array */
519 target_write_u16(target, bank_adr, 0x50);
520 target_write_u16(target, bank_adr, 0xFF);
523 return ERROR_FLASH_OPERATION_FAILED;
524 else if (status & 0x02)
525 return ERROR_FLASH_OPERATION_FAILED;
534 u8 last_halfword[2] = {0xff, 0xff};
537 while(bytes_remaining > 0)
539 last_halfword[i++] = *(buffer + bytes_written);
544 bank_adr = address & ~0x03;
546 /* write data comamnd */
547 target_write_u16(target, bank_adr, 0x40);
548 target->type->write_memory(target, address, 2, 1, last_halfword);
550 /* query status command */
551 target_write_u16(target, bank_adr, 0x70);
554 target_read_u8(target, bank_adr, &status);
560 /* clear status reg and read array */
561 target_write_u16(target, bank_adr, 0x50);
562 target_write_u16(target, bank_adr, 0xFF);
565 return ERROR_FLASH_OPERATION_FAILED;
566 else if (status & 0x02)
567 return ERROR_FLASH_OPERATION_FAILED;
573 int str9x_probe(struct flash_bank_s *bank)
578 int str9x_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
583 int str9x_erase_check(struct flash_bank_s *bank)
585 return str9x_blank_check(bank, 0, bank->num_sectors - 1);
588 int str9x_info(struct flash_bank_s *bank, char *buf, int buf_size)
590 snprintf(buf, buf_size, "str9x flash driver info" );
594 int str9x_handle_flash_config_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
596 str9x_flash_bank_t *str9x_info;
598 target_t *target = NULL;
602 command_print(cmd_ctx, "usage: str9x flash_config <b0size> <b1size> <b0start> <b1start>");
606 bank = get_flash_bank_by_num(0);
607 str9x_info = bank->driver_priv;
608 target = bank->target;
610 if (bank->target->state != TARGET_HALTED)
612 return ERROR_TARGET_NOT_HALTED;
615 /* config flash controller */
616 target_write_u32(target, FLASH_BBSR, strtoul(args[0], NULL, 0));
617 target_write_u32(target, FLASH_NBBSR, strtoul(args[1], NULL, 0));
618 target_write_u32(target, FLASH_BBADR, (strtoul(args[2], NULL, 0) >> 2));
619 target_write_u32(target, FLASH_NBBADR, (strtoul(args[3], NULL, 0) >> 2));
621 /* enable flash bank 1 */
622 target_write_u32(target, FLASH_CR, 0x18);