#include "flash.h"
#include "command.h"
-#include "log.h"
#include "target.h"
#include "time_support.h"
+#include "fileio.h"
+#include "image.h"
+#include "log.h"
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
-
-#include <fileio.h>
-#include <image.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_binary_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_protect_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
+int handle_flash_auto_erase_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 at91sam7_flash;
extern flash_driver_t str7x_flash;
extern flash_driver_t str9x_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;
flash_driver_t *flash_drivers[] =
{
&at91sam7_flash,
&str7x_flash,
&str9x_flash,
+ &stellaris_flash,
+ &str9xpec_flash,
+ &stm32x_flash,
+ &tms470_flash,
NULL,
};
flash_bank_t *flash_banks;
static command_t *flash_cmd;
+static int auto_erase = 0;
int flash_register_commands(struct command_context_s *cmd_ctx)
{
return ERROR_OK;
}
-int flash_init(struct command_context_s *cmd_ctx)
+int flash_init_drivers(struct command_context_s *cmd_ctx)
{
if (flash_banks)
{
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", handle_flash_erase_command, COMMAND_EXEC,
+ "DEPRECATED, use 'erase_sector' instead");
+ 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, "write", handle_flash_write_command, COMMAND_EXEC,
+ 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, "write", handle_flash_write_binary_command, COMMAND_EXEC,
+ "DEPRECATED, use 'write_binary' instead");
+ register_command(cmd_ctx, flash_cmd, "write_binary", handle_flash_write_binary_command, COMMAND_EXEC,
"write binary <bank> <file> <offset>");
+ register_command(cmd_ctx, flash_cmd, "write_image", handle_flash_write_image_command, COMMAND_EXEC,
+ "write_image <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>");
+ register_command(cmd_ctx, flash_cmd, "auto_erase", handle_flash_auto_erase_command, COMMAND_EXEC,
+ "auto erase flash sectors <on|off>");
}
return ERROR_OK;
}
-flash_bank_t *get_flash_bank_by_num(int num)
+flash_bank_t *get_flash_bank_by_num_noprobe(int num)
{
flash_bank_t *p;
int i = 0;
return NULL;
}
-/* flash_bank <driver> <base> <size> <chip_width> <bus_width> [driver_options ...]
+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)
+ {
+ ERROR("auto_probe failed %d\n", retval);
+ return NULL;
+ }
+ return p;
+}
+
+/* flash_bank <driver> <base> <size> <chip_width> <bus_width> <target> [driver_options ...]
*/
int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int i;
int found = 0;
+ target_t *target;
- if (argc < 5)
+ if (argc < 6)
{
WARNING("incomplete flash_bank configuration");
+ WARNING("flash_bank <driver> <base> <size> <chip_width> <bus_width> <target> [driver_options ...]");
+ return ERROR_OK;
+ }
+
+ if ((target = get_target_by_num(strtoul(args[5], NULL, 0))) == NULL)
+ {
+ ERROR("target %lu not defined", strtoul(args[5], NULL, 0));
return ERROR_OK;
}
}
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 (flash_drivers[i]->flash_bank_command(cmd_ctx, cmd, args, argc, c) != ERROR_OK)
return ERROR_OK;
}
- for (p = flash_banks; p; p = p->next)
+ for (p = flash_banks; p; p = p->next, i++)
{
- if (i++ == strtoul(args[0], NULL, 0))
+ if (i == strtoul(args[0], NULL, 0))
{
char buf[1024];
else
protect_state = "protection state unknown";
- command_print(cmd_ctx, "\t#%i: 0x%8.8x (0x%xkB) %s, %s",
- j, p->sectors[j].offset, p->sectors[j].size,
+ command_print(cmd_ctx, "\t#%i: 0x%8.8x (0x%x %ikB) %s, %s",
+ j, p->sectors[j].offset, p->sectors[j].size, p->sectors[j].size>>10,
erase_state, protect_state);
}
return ERROR_OK;
}
- p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
+ p = get_flash_bank_by_num_noprobe(strtoul(args[0], NULL, 0));
if (p)
{
if ((retval = p->driver->probe(p)) == ERROR_OK)
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)
+ {
+ command_print(cmd_ctx, "usage: flash erase_address <address> <length>");
+ return ERROR_OK;
+ }
+
+ 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_INVALID_ARGUMENTS;
+ }
+
+ p = get_flash_bank_by_addr(target, address);
+ if (p == NULL)
+ {
+ command_print(cmd_ctx, "No flash at that address");
+ return ERROR_INVALID_ARGUMENTS;
+ }
+
+ /* 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)
+ {
+ switch (retval)
+ {
+ case ERROR_TARGET_NOT_HALTED:
+ command_print(cmd_ctx, "can't work with this flash while target is running");
+ break;
+ case ERROR_INVALID_ARGUMENTS:
+ command_print(cmd_ctx, "usage: flash erase_address <address> <length>");
+ break;
+ case ERROR_FLASH_BANK_INVALID:
+ command_print(cmd_ctx, "no '%s' flash found at 0x%8.8x", p->driver->name, p->base);
+ break;
+ case ERROR_FLASH_OPERATION_FAILED:
+ command_print(cmd_ctx, "flash erase error");
+ break;
+ case ERROR_FLASH_SECTOR_INVALID:
+ command_print(cmd_ctx, "sector number(s) invalid");
+ break;
+ default:
+ command_print(cmd_ctx, "unknown error");
+ }
+ }
+ else
+ {
+ duration_stop_measure(&duration, &duration_text);
+ 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 last = strtoul(args[2], NULL, 0);
int retval;
flash_bank_t *p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
- struct timeval start, end, duration;
-
- gettimeofday(&start, NULL);
+ duration_t duration;
+ char *duration_text;
+
+ duration_start_measure(&duration);
if (!p)
{
}
else
{
- gettimeofday(&end, NULL);
- timeval_subtract(&duration, &end, &start);
-
- command_print(cmd_ctx, "erased sectors %i through %i on flash bank %i in %is %ius", first, last, strtoul(args[0], 0, 0), duration.tv_sec, duration.tv_usec);
+ duration_stop_measure(&duration, &duration_text);
+
+ 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_OK;
}
-int handle_flash_write_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)
+{
+ target_t *target = get_current_target(cmd_ctx);
+
+ image_t image;
+ u32 written;
+ char *error_str;
+ int *failed;
+
+ int i;
+
+ duration_t duration;
+ char *duration_text;
+
+ int retval;
+
+ if (argc < 1)
+ {
+ command_print(cmd_ctx, "usage: flash %s <file> [offset] [type]", cmd);
+ return ERROR_INVALID_ARGUMENTS;
+ }
+
+ if (!target)
+ {
+ ERROR("no target selected");
+ return ERROR_OK;
+ }
+
+ 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)
+ {
+ command_print(cmd_ctx, "image_open error: %s", image.error_str);
+ return retval;
+ }
+
+ failed = malloc(sizeof(int) * image.num_sections);
+
+ error_str = NULL;
+
+ retval = flash_write(target, &image, &written, &error_str, failed, auto_erase);
+
+ if (retval != ERROR_OK)
+ {
+ if (error_str)
+ {
+ command_print(cmd_ctx, "failed writing image %s: %s", args[0], error_str);
+ free(error_str);
+ }
+ image_close(&image);
+ free(failed);
+ return retval;
+ }
+
+ for (i = 0; i < image.num_sections; i++)
+ {
+ if (failed[i])
+ {
+ command_print(cmd_ctx, "didn't write section at 0x%8.8x, size 0x%8.8x",
+ image.sections[i].base_address, image.sections[i].size);
+ }
+ }
+
+ duration_stop_measure(&duration, &duration_text);
+ 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);
+ free(failed);
+
+ image_close(&image);
+
+ return ERROR_OK;
+}
+
+int handle_flash_write_binary_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
u32 offset;
- u32 binary_size;
u8 *buffer;
u32 buf_cnt;
- image_t image;
+ fileio_t fileio;
duration_t duration;
char *duration_text;
if (argc < 3)
{
- command_print(cmd_ctx, "usage: flash write <bank> <file> <offset> [type]");
+ command_print(cmd_ctx, "usage: flash write_binary <bank> <file> <offset>");
return ERROR_OK;
}
duration_start_measure(&duration);
- identify_image_type(&image.type, (argc == 4) ? args[3] : NULL);
-
- image.base_address_set = 1;
- image.base_address = strtoul(args[1], NULL, 0);
-
- image.start_address_set = 0;
-
offset = strtoul(args[2], NULL, 0);
p = get_flash_bank_by_num(strtoul(args[0], NULL, 0));
if (!p)
return ERROR_OK;
}
- if (image_open(&image, args[1], FILEIO_READ) != ERROR_OK)
+ if (fileio_open(&fileio, args[1], FILEIO_READ, FILEIO_BINARY) != ERROR_OK)
{
- command_print(cmd_ctx, "flash write error: %s", image.error_str);
+ command_print(cmd_ctx, "flash write_binary error: %s", fileio.error_str);
return ERROR_OK;
}
- binary_size = image.size;
- buffer = malloc(binary_size);
-
- image_read(&image, binary_size, buffer, &buf_cnt);
+ buffer = malloc(fileio.size);
+ if (fileio_read(&fileio, fileio.size, buffer, &buf_cnt) != ERROR_OK)
+ {
+ command_print(cmd_ctx, "flash write_binary error: %s", fileio.error_str);
+ return ERROR_OK;
+ }
if ((retval = p->driver->write(p, buffer, offset, buf_cnt)) != ERROR_OK)
{
command_print(cmd_ctx, "failed writing file %s to flash bank %i at offset 0x%8.8x",
args[1], strtoul(args[0], NULL, 0), strtoul(args[2], NULL, 0));
+
switch (retval)
{
case ERROR_TARGET_NOT_HALTED:
command_print(cmd_ctx, "unknown error");
}
}
- else
+
+ free(buffer);
+
+ duration_stop_measure(&duration, &duration_text);
+ 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 ERROR_OK;
+}
+
+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)
{
- duration_stop_measure(&duration, &duration_text);
- command_print(cmd_ctx, "wrote file %s to flash bank %i at offset 0x%8.8x in %s",
- args[1], strtoul(args[0], NULL, 0), offset, duration_text);
- free(duration_text);
+ 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)
+ {
+ 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) && target == c->target)
+ return c;
+ }
+
+ 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;
- free(buffer);
- image_close(&image);
+ 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)
+ 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 c->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 c->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, char **error_str, int *failed, int erase)
+{
+ int retval;
+ int i;
+
+ int section;
+ u32 section_offset;
+ flash_bank_t *c;
+
+ section = 0;
+ section_offset = 0;
+
+ if (written)
+ *written = 0;
+
+ if (failed != NULL)
+ for (i = 0; i < image->num_sections; i++)
+ failed[i] = 0;
+
+ if (erase)
+ {
+ /* assume all sectors need erasing - stops any problems
+ * when flash_write is called multiple times */
+
+ flash_set_dirty();
+ }
+
+ /* 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;
+
+ if (image->sections[section].size == 0)
+ {
+ 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)
+ {
+ if (failed == NULL)
+ {
+ if (error_str == NULL)
+ return ERROR_FLASH_DST_OUT_OF_BANK; /* abort operation */
+ *error_str = malloc(FLASH_MAX_ERROR_STR);
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "no flash mapped at requested address");
+ return ERROR_FLASH_DST_OUT_OF_BANK; /* abort operation */
+ }
+ failed[section] = ERROR_FLASH_DST_OUT_OF_BANK; /* mark the section as failed */
+ section++; /* and skip it */
+ section_offset = 0;
+ continue;
+ }
+
+ /* collect consecutive sections which fall into the same bank */
+ section_first = section;
+ section_last = section;
+ 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))
+ {
+ DEBUG("section %d out of order(very slightly surprising, but supported)", section_last + 1);
+ break;
+ }
+ if (image->sections[section_last + 1].base_address != (run_address + run_size))
+ break;
+ run_size += image->sections[++section_last].size;
+ }
+
+ /* 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;
+
+ if (buffer_size - run_size <= image->sections[section].size - section_offset)
+ size_read = buffer_size - run_size;
+ else
+ 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);
+
+ if (error_str == NULL)
+ return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE;
+
+ *error_str = malloc(FLASH_MAX_ERROR_STR);
+
+ /* if image_read_section returned an error there's an error string we can pass on */
+ if (retval != ERROR_OK)
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "error reading from image: %s", image->error_str);
+ else
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "error reading from image");
+
+ return ERROR_IMAGE_TEMPORARILY_UNAVAILABLE;
+ }
+
+ 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 = c->driver->write(c, buffer, run_address - c->base, run_size);
+ }
+
+ free(buffer);
+
+ if (retval != ERROR_OK)
+ {
+ if (error_str == NULL)
+ return retval; /* abort operation */
+
+ *error_str = malloc(FLASH_MAX_ERROR_STR);
+ switch (retval)
+ {
+ case ERROR_TARGET_NOT_HALTED:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "can't flash image while target is running");
+ break;
+ case ERROR_INVALID_ARGUMENTS:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "flash driver can't fulfill request");
+ break;
+ case ERROR_FLASH_OPERATION_FAILED:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "flash program error");
+ break;
+ case ERROR_FLASH_DST_BREAKS_ALIGNMENT:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "offset breaks required alignment");
+ break;
+ case ERROR_FLASH_DST_OUT_OF_BANK:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "no flash mapped at requested address");
+ break;
+ case ERROR_FLASH_SECTOR_NOT_ERASED:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "destination sector(s) not erased");
+ break;
+ default:
+ snprintf(*error_str, FLASH_MAX_ERROR_STR, "unknown error: %i", retval);
+ }
+
+ return retval; /* abort operation */
+ }
+
+ if (written != NULL)
+ *written += run_size; /* add run size to total written counter */
+ }
+
+ return ERROR_OK;
+}
+
+int handle_flash_auto_erase_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ if (argc != 1)
+ {
+ command_print(cmd_ctx, "usage: flash auto_erase <on|off>");
+ return ERROR_OK;
+ }
+
+ if (strcmp(args[0], "on") == 0)
+ auto_erase = 1;
+ else if (strcmp(args[0], "off") == 0)
+ auto_erase = 0;
return ERROR_OK;
}