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riscv-openocd/src/flash/flash.c

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/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2007,2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "flash.h"
#include "command.h"
#include "target.h"
#include "time_support.h"
#include "fileio.h"
#include "image.h"
#include "log.h"
#include "armv4_5.h"
#include "algorithm.h"
#include "binarybuffer.h"
#include "armv7m.h"
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <inttypes.h>
/* command handlers */
int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_write_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr);
/* flash drivers
*/
extern flash_driver_t lpc2000_flash;
extern flash_driver_t cfi_flash;
extern flash_driver_t at91sam7_flash;
extern flash_driver_t at91sam7_old_flash;
extern flash_driver_t str7x_flash;
extern flash_driver_t str9x_flash;
extern flash_driver_t aduc702x_flash;
extern flash_driver_t stellaris_flash;
extern flash_driver_t str9xpec_flash;
extern flash_driver_t stm32x_flash;
extern flash_driver_t tms470_flash;
extern flash_driver_t ecosflash_flash;
extern flash_driver_t lpc288x_flash;
extern flash_driver_t ocl_flash;
flash_driver_t *flash_drivers[] = {
&lpc2000_flash,
&cfi_flash,
&at91sam7_flash,
&at91sam7_old_flash,
&str7x_flash,
&str9x_flash,
&aduc702x_flash,
&stellaris_flash,
&str9xpec_flash,
&stm32x_flash,
&tms470_flash,
&ecosflash_flash,
&lpc288x_flash,
&ocl_flash,
NULL,
};
flash_bank_t *flash_banks;
static command_t *flash_cmd;
/* wafer thin wrapper for invoking the flash driver */
static int flash_driver_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
{
int retval;
retval=bank->driver->write(bank, buffer, offset, count);
if (retval!=ERROR_OK)
{
LOG_ERROR("error writing to flash at address 0x%08x at offset 0x%8.8x (%d)", bank->base, offset, retval);
}
return retval;
}
static int flash_driver_erase(struct flash_bank_s *bank, int first, int last)
{
int retval;
retval=bank->driver->erase(bank, first, last);
if (retval!=ERROR_OK)
{
LOG_ERROR("failed erasing sectors %d to %d (%d)", first, last, retval);
}
return retval;
}
int flash_driver_protect(struct flash_bank_s *bank, int set, int first, int last)
{
int retval;
retval=bank->driver->protect(bank, set, first, last);
if (retval!=ERROR_OK)
{
LOG_ERROR("failed setting protection for areas %d to %d (%d)", first, last, retval);
}
return retval;
}
int flash_register_commands(struct command_context_s *cmd_ctx)
{
flash_cmd = register_command(cmd_ctx, NULL, "flash", NULL, COMMAND_ANY, NULL);
register_command(cmd_ctx, flash_cmd, "bank", handle_flash_bank_command, COMMAND_CONFIG, "flash bank <driver> <base> <size> <chip_width> <bus_width> <target> [driver_options ...]");
return ERROR_OK;
}
static int jim_flash_banks(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
flash_bank_t *p;
if (argc != 1) {
Jim_WrongNumArgs(interp, 1, argv, "no arguments to flash_banks command");
return JIM_ERR;
}
Jim_Obj *list=Jim_NewListObj(interp, NULL, 0);
for (p = flash_banks; p; p = p->next)
{
Jim_Obj *elem=Jim_NewListObj(interp, NULL, 0);
Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "name", -1));
Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, p->driver->name, -1));
Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "base", -1));
Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->base));
Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "size", -1));
Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->size));
Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "bus_width", -1));
Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->bus_width));
Jim_ListAppendElement(interp, elem, Jim_NewStringObj(interp, "chip_width", -1));
Jim_ListAppendElement(interp, elem, Jim_NewIntObj(interp, p->chip_width));
Jim_ListAppendElement(interp, list, elem);
}
Jim_SetResult(interp, list);
return JIM_OK;
}
int flash_init_drivers(struct command_context_s *cmd_ctx)
{
register_jim(cmd_ctx, "ocd_flash_banks", jim_flash_banks, "return information about the flash banks");
if (flash_banks)
{
register_command(cmd_ctx, flash_cmd, "info", handle_flash_info_command, COMMAND_EXEC,
"print info about flash bank <num>");
register_command(cmd_ctx, flash_cmd, "probe", handle_flash_probe_command, COMMAND_EXEC,
"identify flash bank <num>");
register_command(cmd_ctx, flash_cmd, "erase_check", handle_flash_erase_check_command, COMMAND_EXEC,
"check erase state of sectors in flash bank <num>");
register_command(cmd_ctx, flash_cmd, "protect_check", handle_flash_protect_check_command, COMMAND_EXEC,
"check protection state of sectors in flash bank <num>");
register_command(cmd_ctx, flash_cmd, "erase_sector", handle_flash_erase_command, COMMAND_EXEC,
"erase sectors at <bank> <first> <last>");
register_command(cmd_ctx, flash_cmd, "erase_address", handle_flash_erase_address_command, COMMAND_EXEC,
"erase address range <address> <length>");
register_command(cmd_ctx, flash_cmd, "fillw", handle_flash_fill_command, COMMAND_EXEC,
"fill with pattern (no autoerase) <address> <word_pattern> <count>");
register_command(cmd_ctx, flash_cmd, "fillh", handle_flash_fill_command, COMMAND_EXEC,
"fill with pattern <address> <halfword_pattern> <count>");
register_command(cmd_ctx, flash_cmd, "fillb", handle_flash_fill_command, COMMAND_EXEC,
"fill with pattern <address> <byte_pattern> <count>");
register_command(cmd_ctx, flash_cmd, "write_bank", handle_flash_write_bank_command, COMMAND_EXEC,
"write binary data to <bank> <file> <offset>");
register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
"write_image [erase] <file> [offset] [type]");
register_command(cmd_ctx, flash_cmd, "protect", handle_flash_protect_command, COMMAND_EXEC,
"set protection of sectors at <bank> <first> <last> <on|off>");
}
return ERROR_OK;
}
flash_bank_t *get_flash_bank_by_num_noprobe(int num)
{
flash_bank_t *p;
int i = 0;
for (p = flash_banks; p; p = p->next)
{
if (i++ == num)
{
return p;
}
}
LOG_ERROR("flash bank %d does not exist", num);
return NULL;
}
int flash_get_bank_count(void)
{
flash_bank_t *p;
int i = 0;
for (p = flash_banks; p; p = p->next)
{
i++;
}
return i;
}
flash_bank_t *get_flash_bank_by_num(int num)
{
flash_bank_t *p = get_flash_bank_by_num_noprobe(num);
int retval;
if (p == NULL)
return NULL;
retval = p->driver->auto_probe(p);
if (retval != ERROR_OK)
{
LOG_ERROR("auto_probe failed %d\n", retval);
return NULL;
}
return p;
}
int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int retval;
int i;
int found = 0;
target_t *target;
if (argc < 6)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
if ((target = get_target_by_num(strtoul(args[5], NULL, 0))) == NULL)
{
LOG_ERROR("target %lu not defined", strtoul(args[5], NULL, 0));
return ERROR_FAIL;
}
for (i = 0; flash_drivers[i]; i++)
{
if (strcmp(args[0], flash_drivers[i]->name) == 0)
{
flash_bank_t *p, *c;
/* register flash specific commands */
if (flash_drivers[i]->register_commands(cmd_ctx) != ERROR_OK)
{
LOG_ERROR("couldn't register '%s' commands", args[0]);
return ERROR_FAIL;
}
c = malloc(sizeof(flash_bank_t));
c->target = target;
c->driver = flash_drivers[i];
c->driver_priv = NULL;
c->base = strtoul(args[1], NULL, 0);
c->size = strtoul(args[2], NULL, 0);
c->chip_width = strtoul(args[3], NULL, 0);
c->bus_width = strtoul(args[4], NULL, 0);
c->num_sectors = 0;
c->sectors = NULL;
c->next = NULL;
if ((retval=flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c)) != ERROR_OK)
{
LOG_ERROR("'%s' driver rejected flash bank at 0x%8.8x", args[0], c->base);
free(c);
return retval;
}
/* put flash bank in linked list */
if (flash_banks)
{
/* find last flash bank */
for (p = flash_banks; p && p->next; p = p->next);
if (p)
p->next = c;
}
else
{
flash_banks = c;
}
found = 1;
}
}
/* no matching flash driver found */
if (!found)
{
LOG_ERROR("flash driver '%s' not found", args[0]);
return ERROR_FAIL;
}
return ERROR_OK;
}
int handle_flash_info_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *p;
int i = 0;
int j = 0;
int retval;
if (argc != 1)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
for (p = flash_banks; p; p = p->next, i++)
{
if (i == strtoul(args[0], NULL, 0))
{
char buf[1024];
/* attempt auto probe */
if ((retval = p->driver->auto_probe(p)) != ERROR_OK)
return retval;
command_print(cmd_ctx, "#%i: %s at 0x%8.8x, size 0x%8.8x, buswidth %i, chipwidth %i",
i, p->driver->name, p->base, p->size, p->bus_width, p->chip_width);
for (j = 0; j < p->num_sectors; j++)
{
char *protect_state;
if (p->sectors[j].is_protected == 0)
protect_state = "not protected";
else if (p->sectors[j].is_protected == 1)
protect_state = "protected";
else
protect_state = "protection state unknown";
command_print(cmd_ctx, "\t#%3i: 0x%8.8x (0x%x %ikB) %s",
j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
protect_state);
}
*buf = '\0'; /* initialize buffer, otherwise it migh contain garbage if driver function fails */
retval = p->driver->info(p, buf, sizeof(buf));
command_print(cmd_ctx, "%s", buf);
if (retval != ERROR_OK)
LOG_ERROR("error retrieving flash info (%d)", retval);
}
}
return ERROR_OK;
}
int handle_flash_probe_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *p;
int retval;
if (argc != 1)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
if (p)
{
if ((retval = p->driver->probe(p)) == ERROR_OK)
{
command_print(cmd_ctx, "flash '%s' found at 0x%8.8x", p->driver->name, p->base);
}
else if (retval == ERROR_FLASH_BANK_INVALID)
{
command_print(cmd_ctx, "probing failed for flash bank '#%s' at 0x%8.8x",
args[0], p->base);
}
else
{
command_print(cmd_ctx, "unknown error when probing flash bank '#%s' at 0x%8.8x",
args[0], p->base);
}
}
else
{
command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
}
return ERROR_OK;
}
int handle_flash_erase_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *p;
int retval;
if (argc != 1)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
if (p)
{
int j;
if ((retval = p->driver->erase_check(p)) == ERROR_OK)
{
command_print(cmd_ctx, "successfully checked erase state", p->driver->name, p->base);
}
else
{
command_print(cmd_ctx, "unknown error when checking erase state of flash bank #%s at 0x%8.8x",
args[0], p->base);
}
for (j = 0; j < p->num_sectors; j++)
{
char *erase_state;
if (p->sectors[j].is_erased == 0)
erase_state = "not erased";
else if (p->sectors[j].is_erased == 1)
erase_state = "erased";
else
erase_state = "erase state unknown";
command_print(cmd_ctx, "\t#%3i: 0x%8.8x (0x%x %ikB) %s",
j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
erase_state);
}
}
return ERROR_OK;
}
int handle_flash_erase_address_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *p;
int retval;
int address;
int length;
duration_t duration;
char *duration_text;
target_t *target = get_current_target(cmd_ctx);
if (argc != 2)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
address = strtoul(args[0], NULL, 0);
length = strtoul(args[1], NULL, 0);
if (length <= 0)
{
command_print(cmd_ctx, "Length must be >0");
return ERROR_COMMAND_SYNTAX_ERROR;
}
p = get_flash_bank_by_addr(target, address);
if (p == NULL)
{
return ERROR_FAIL;
}
/* We can't know if we did a resume + halt, in which case we no longer know the erased state */
flash_set_dirty();
duration_start_measure(&duration);
if ((retval = flash_erase_address_range(target, address, length)) == ERROR_OK)
{
if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
{
return retval;
}
command_print(cmd_ctx, "erased address 0x%8.8x length %i in %s", address, length, duration_text);
free(duration_text);
}
return retval;
}
int handle_flash_protect_check_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
flash_bank_t *p;
int retval;
if (argc != 1)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
if (p)
{
if ((retval = p->driver->protect_check(p)) == ERROR_OK)
{
command_print(cmd_ctx, "successfully checked protect state");
}
else if (retval == ERROR_FLASH_OPERATION_FAILED)
{
command_print(cmd_ctx, "checking protection state failed (possibly unsupported) by flash #%s at 0x%8.8x", args[0], p->base);
}
else
{
command_print(cmd_ctx, "unknown error when checking protection state of flash bank '#%s' at 0x%8.8x", args[0], p->base);
}
}
else
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
return ERROR_OK;
}
int handle_flash_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc > 2)
{
int first = strtoul(args[1], NULL, 0);
int last = strtoul(args[2], NULL, 0);
int retval;
flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
duration_t duration;
char *duration_text;
duration_start_measure(&duration);
if (!p)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
if ((retval = flash_driver_erase(p, first, last)) == ERROR_OK)
{
if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
{
return retval;
}
command_print(cmd_ctx, "erased sectors %i through %i on flash bank %i in %s", first, last, strtoul(args[0], 0, 0), duration_text);
free(duration_text);
}
}
else
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
return ERROR_OK;
}
int handle_flash_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
if (argc > 3)
{
int first = strtoul(args[1], NULL, 0);
int last = strtoul(args[2], NULL, 0);
int set;
int retval;
flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
if (!p)
{
command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
return ERROR_OK;
}
if (strcmp(args[3], "on") == 0)
set = 1;
else if (strcmp(args[3], "off") == 0)
set = 0;
else
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
retval = flash_driver_protect(p, set, first, last);
if (retval == ERROR_OK)
{
command_print(cmd_ctx, "%s protection for sectors %i through %i on flash bank %i", (set) ? "set" : "cleared", first, last, strtoul(args[0], 0, 0));
}
}
else
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
return ERROR_OK;
}
int handle_flash_write_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
target_t *target = get_current_target(cmd_ctx);
image_t image;
u32 written;
duration_t duration;
char *duration_text;
int retval, retvaltemp;
if (argc < 1)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
/* flash auto-erase is disabled by default*/
int auto_erase = 0;
if (strcmp(args[0], "erase")==0)
{
auto_erase = 1;
args++;
argc--;
command_print(cmd_ctx, "auto erase enabled");
}
if (argc < 1)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
if (!target)
{
LOG_ERROR("no target selected");
return ERROR_FAIL;
}
duration_start_measure(&duration);
if (argc >= 2)
{
image.base_address_set = 1;
image.base_address = strtoul(args[1], NULL, 0);
}
else
{
image.base_address_set = 0;
image.base_address = 0x0;
}
image.start_address_set = 0;
retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL);
if (retval != ERROR_OK)
{
return retval;
}
retval = flash_write(target, &image, &written, auto_erase);
if (retval != ERROR_OK)
{
image_close(&image);
return retval;
}
if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
{
image_close(&image);
return retvaltemp;
}
if (retval == ERROR_OK)
{
command_print(cmd_ctx, "wrote %u byte from file %s in %s (%f kb/s)",
written, args[0], duration_text,
(float)written / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
}
free(duration_text);
image_close(&image);
return retval;
}
int handle_flash_fill_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int err = ERROR_OK, retval;
u32 address;
u32 pattern;
u32 count;
u8 chunk[1024];
u32 wrote = 0;
int chunk_count;
char *duration_text;
duration_t duration;
target_t *target = get_current_target(cmd_ctx);
u32 i;
int wordsize;
if (argc != 3)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
address = strtoul(args[0], NULL, 0);
pattern = strtoul(args[1], NULL, 0);
count = strtoul(args[2], NULL, 0);
if(count == 0)
return ERROR_OK;
switch(cmd[4])
{
case 'w':
wordsize=4;
break;
case 'h':
wordsize=2;
break;
case 'b':
wordsize=1;
break;
default:
return ERROR_COMMAND_SYNTAX_ERROR;
}
chunk_count = MIN(count, (1024 / wordsize));
switch(wordsize)
{
case 4:
for(i = 0; i < chunk_count; i++)
{
target_buffer_set_u32(target, chunk + i * wordsize, pattern);
}
break;
case 2:
for(i = 0; i < chunk_count; i++)
{
target_buffer_set_u16(target, chunk + i * wordsize, pattern);
}
break;
case 1:
memset(chunk, pattern, chunk_count);
break;
default:
LOG_ERROR("BUG: can't happen");
exit(-1);
}
duration_start_measure(&duration);
for (wrote=0; wrote<(count*wordsize); wrote+=sizeof(chunk))
{
int cur_size = MIN( (count*wordsize - wrote) , 1024 );
flash_bank_t *bank;
bank = get_flash_bank_by_addr(target, address);
if(bank == NULL)
{
return ERROR_FAIL;
}
err = flash_driver_write(bank, chunk, address - bank->base + wrote, cur_size);
if (err!=ERROR_OK)
return err;
wrote += cur_size;
}
if ((retval = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
{
return retval;
}
if(err == ERROR_OK)
{
float speed;
speed=wrote / 1024.0;
speed/=((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0));
command_print(cmd_ctx, "wrote %d bytes to 0x%8.8x in %s (%f kb/s)",
count*wordsize, address, duration_text,
speed);
}
free(duration_text);
return ERROR_OK;
}
int handle_flash_write_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
u32 offset;
u8 *buffer;
u32 buf_cnt;
fileio_t fileio;
duration_t duration;
char *duration_text;
int retval, retvaltemp;
flash_bank_t *p;
if (argc != 3)
{
return ERROR_COMMAND_SYNTAX_ERROR;
}
duration_start_measure(&duration);
offset = strtoul(args[2], NULL, 0);
p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
if (!p)
{
command_print(cmd_ctx, "flash bank '#%s' is out of bounds", args[0]);
return ERROR_OK;
}
if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
{
return ERROR_OK;
}
buffer = malloc(fileio.size);
if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
{
free(buffer);
fileio_close(&fileio);
return ERROR_OK;
}
retval = flash_driver_write(p, buffer, offset, buf_cnt);
free(buffer);
buffer = NULL;
if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
{
fileio_close(&fileio);
return retvaltemp;
}
if (retval==ERROR_OK)
{
command_print(cmd_ctx, "wrote %"PRIi64" byte from file %s to flash bank %i at offset 0x%8.8x in %s (%f kb/s)",
fileio.size, args[1], strtoul(args[0], NULL, 0), offset, duration_text,
(float)fileio.size / 1024.0 / ((float)duration.duration.tv_sec + ((float)duration.duration.tv_usec / 1000000.0)));
}
free(duration_text);
fileio_close(&fileio);
return retval;
}
void flash_set_dirty(void)
{
flash_bank_t *c;
int i;
/* set all flash to require erasing */
for (c = flash_banks; c; c = c->next)
{
for (i = 0; i < c->num_sectors; i++)
{
c->sectors[i].is_erased = 0;
}
}
}
/* lookup flash bank by address */
flash_bank_t *get_flash_bank_by_addr(target_t *target, u32 addr)
{
flash_bank_t *c;
/* cycle through bank list */
for (c = flash_banks; c; c = c->next)
{
int retval;
retval = c->driver->auto_probe(c);
if (retval != ERROR_OK)
{
LOG_ERROR("auto_probe failed %d\n", retval);
return NULL;
}
/* check whether address belongs to this flash bank */
if ((addr >= c->base) && (addr <= c->base + (c->size - 1)) && target == c->target)
return c;
}
LOG_ERROR("No flash at address 0x%08x\n", addr);
return NULL;
}
/* erase given flash region, selects proper bank according to target and address */
int flash_erase_address_range(target_t *target, u32 addr, u32 length)
{
flash_bank_t *c;
int first = -1;
int last = -1;
int i;
if ((c = get_flash_bank_by_addr(target, addr)) == NULL)
return ERROR_FLASH_DST_OUT_OF_BANK; /* no corresponding bank found */
if (c->size == 0 || c->num_sectors == 0)
{
LOG_ERROR("Bank is invalid");
return ERROR_FLASH_BANK_INVALID;
}
if (length == 0)
{
/* special case, erase whole bank when length is zero */
if (addr != c->base)
return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
return flash_driver_erase(c, 0, c->num_sectors - 1);
}
/* check whether it fits */
if (addr + length > c->base + c->size)
return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
addr -= c->base;
for (i = 0; i < c->num_sectors; i++)
{
/* check whether sector overlaps with the given range and is not yet erased */
if (addr < c->sectors[i].offset + c->sectors[i].size && addr + length > c->sectors[i].offset && c->sectors[i].is_erased != 1) {
/* if first is not set yet then this is the first sector */
if (first == -1)
first = i;
last = i; /* and it is the last one so far in any case */
}
}
if( first == -1 || last == -1 )
return ERROR_OK;
return flash_driver_erase(c, first, last);
}
/* write (optional verify) an image to flash memory of the given target */
int flash_write(target_t *target, image_t *image, u32 *written, int erase)
{
int retval=ERROR_OK;
int section;
u32 section_offset;
flash_bank_t *c;
int *padding;
section = 0;
section_offset = 0;
if (written)
*written = 0;
if (erase)
{
/* assume all sectors need erasing - stops any problems
* when flash_write is called multiple times */
flash_set_dirty();
}
/* allocate padding array */
padding = malloc(image->num_sections * sizeof(padding));
/* loop until we reach end of the image */
while (section < image->num_sections)
{
u32 buffer_size;
u8 *buffer;
int section_first;
int section_last;
u32 run_address = image->sections[section].base_address + section_offset;
u32 run_size = image->sections[section].size - section_offset;
int pad_bytes = 0;
if (image->sections[section].size == 0)
{
LOG_WARNING("empty section %d", section);
section++;
section_offset = 0;
continue;
}
/* find the corresponding flash bank */
if ((c = get_flash_bank_by_addr(target, run_address)) == NULL)
{
section++; /* and skip it */
section_offset = 0;
continue;
}
/* collect consecutive sections which fall into the same bank */
section_first = section;
section_last = section;
padding[section] = 0;
while ((run_address + run_size < c->base + c->size)
&& (section_last + 1 < image->num_sections))
{
if (image->sections[section_last + 1].base_address < (run_address + run_size))
{
LOG_DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
break;
}
/* if we have multiple sections within our image, flash programming could fail due to alignment issues
* attempt to rebuild a consecutive buffer for the flash loader */
pad_bytes = (image->sections[section_last + 1].base_address) - (run_address + run_size);
if ((run_address + run_size + pad_bytes) > (c->base + c->size))
break;
padding[section_last] = pad_bytes;
run_size += image->sections[++section_last].size;
run_size += pad_bytes;
padding[section_last] = 0;
LOG_INFO("Padding image section %d with %d bytes", section_last-1, pad_bytes );
}
/* fit the run into bank constraints */
if (run_address + run_size > c->base + c->size)
run_size = c->base + c->size - run_address;
/* allocate buffer */
buffer = malloc(run_size);
buffer_size = 0;
/* read sections to the buffer */
while (buffer_size < run_size)
{
u32 size_read;
size_read = run_size - buffer_size;
if (size_read > image->sections[section].size - section_offset)
size_read = image->sections[section].size - section_offset;
if ((retval = image_read_section(image, section, section_offset,
size_read, buffer + buffer_size, &size_read)) != ERROR_OK || size_read == 0)
{
free(buffer);
free(padding);
return retval;
}
/* see if we need to pad the section */
while (padding[section]--)
(buffer+buffer_size)[size_read++] = 0xff;
buffer_size += size_read;
section_offset += size_read;
if (section_offset >= image->sections[section].size)
{
section++;
section_offset = 0;
}
}
retval = ERROR_OK;
if (erase)
{
/* calculate and erase sectors */
retval = flash_erase_address_range( target, run_address, run_size );
}
if (retval == ERROR_OK)
{
/* write flash sectors */
retval = flash_driver_write(c, buffer, run_address - c->base, run_size);
}
free(buffer);
if (retval != ERROR_OK)
{
free(padding);
return retval; /* abort operation */
}
if (written != NULL)
*written += run_size; /* add run size to total written counter */
}
free(padding);
return retval;
}
int default_flash_mem_blank_check(struct flash_bank_s *bank)
{
target_t *target = bank->target;
u8 buffer[1024];
int buffer_size = sizeof(buffer);
int i;
int nBytes;
if (bank->target->state != TARGET_HALTED)
{
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
for (i = 0; i < bank->num_sectors; i++)
{
int j;
bank->sectors[i].is_erased = 1;
for (j = 0; j < bank->sectors[i].size; j += buffer_size)
{
int chunk;
int retval;
chunk = buffer_size;
if (chunk > (j - bank->sectors[i].size))
{
chunk = (j - bank->sectors[i].size);
}
retval = target->type->read_memory(target, bank->base + bank->sectors[i].offset + j, 4, chunk/4, buffer);
if (retval != ERROR_OK)
return retval;
for (nBytes = 0; nBytes < chunk; nBytes++)
{
if (buffer[nBytes] != 0xFF)
{
bank->sectors[i].is_erased = 0;
break;
}
}
}
}
return ERROR_OK;
}
int default_flash_blank_check(struct flash_bank_s *bank)
{
target_t *target = bank->target;
int i;
int retval;
int fast_check = 0;
u32 blank;
if (bank->target->state != TARGET_HALTED)
{
LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
for (i = 0; i < bank->num_sectors; i++)
{
u32 address = bank->base + bank->sectors[i].offset;
u32 size = bank->sectors[i].size;
if ((retval = target_blank_check_memory(target, address, size, &blank)) != ERROR_OK)
{
fast_check = 0;
break;
}
if (blank == 0xFF)
bank->sectors[i].is_erased = 1;
else
bank->sectors[i].is_erased = 0;
fast_check = 1;
}
if (!fast_check)
{
LOG_USER("Running slow fallback erase check - add working memory");
return default_flash_mem_blank_check(bank);
}
return ERROR_OK;
}
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