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-rw-r--r--src/flash/stm32x.c81
-rw-r--r--src/flash/stm32x.h1
2 files changed, 38 insertions, 44 deletions
diff --git a/src/flash/stm32x.c b/src/flash/stm32x.c
index e87e0cce..5b16f57a 100644
--- a/src/flash/stm32x.c
+++ b/src/flash/stm32x.c
@@ -40,6 +40,7 @@ int stm32x_erase(struct flash_bank_s *bank, int first, int last);
int stm32x_protect(struct flash_bank_s *bank, int set, int first, int last);
int stm32x_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
int stm32x_probe(struct flash_bank_s *bank);
+int stm32x_auto_probe(struct flash_bank_s *bank);
int stm32x_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
int stm32x_protect_check(struct flash_bank_s *bank);
int stm32x_erase_check(struct flash_bank_s *bank);
@@ -60,7 +61,7 @@ flash_driver_t stm32x_flash =
.protect = stm32x_protect,
.write = stm32x_write,
.probe = stm32x_probe,
- .auto_probe = stm32x_probe,
+ .auto_probe = stm32x_auto_probe,
.erase_check = stm32x_erase_check,
.protect_check = stm32x_protect_check,
.info = stm32x_info
@@ -83,41 +84,6 @@ int stm32x_register_commands(struct command_context_s *cmd_ctx)
return ERROR_OK;
}
-int stm32x_build_block_list(struct flash_bank_s *bank)
-{
- int i;
- int num_sectors = 0;
-
- switch (bank->size)
- {
- case 32 * 1024:
- num_sectors = 32;
- break;
- case 64 * 1024:
- num_sectors = 64;
- break;
- case 128 * 1024:
- num_sectors = 128;
- break;
- default:
- ERROR("BUG: unknown bank->size encountered");
- exit(-1);
- }
-
- bank->num_sectors = num_sectors;
- bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors);
-
- for (i = 0; i < num_sectors; i++)
- {
- bank->sectors[i].offset = i * 1024;
- bank->sectors[i].size = 1024;
- bank->sectors[i].is_erased = -1;
- bank->sectors[i].is_protected = 1;
- }
-
- return ERROR_OK;
-}
-
/* flash bank stm32x <base> <size> 0 0 <target#>
*/
int stm32x_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
@@ -133,15 +99,8 @@ int stm32x_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char
stm32x_info = malloc(sizeof(stm32x_flash_bank_t));
bank->driver_priv = stm32x_info;
- if (bank->base != 0x08000000)
- {
- WARNING("overriding flash base address for STM32x device with 0x08000000");
- bank->base = 0x08000000;
- }
-
- stm32x_build_block_list(bank);
-
stm32x_info->write_algorithm = NULL;
+ stm32x_info->probed = 0;
return ERROR_OK;
}
@@ -681,9 +640,43 @@ int stm32x_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
int stm32x_probe(struct flash_bank_s *bank)
{
+ target_t *target = bank->target;
+ stm32x_flash_bank_t *stm32x_info = bank->driver_priv;
+ int i;
+ u16 num_sectors;
+
+ stm32x_info->probed = 0;
+
+ /* get flash size from target */
+ target_read_u16(target, 0x1FFFF7E0, &num_sectors);
+ INFO( "flash size = %dkbytes", num_sectors );
+
+ bank->base = 0x08000000;
+ bank->size = num_sectors * 1024;
+ bank->num_sectors = num_sectors;
+ bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors);
+
+ for (i = 0; i < num_sectors; i++)
+ {
+ bank->sectors[i].offset = i * 1024;
+ bank->sectors[i].size = 1024;
+ bank->sectors[i].is_erased = -1;
+ bank->sectors[i].is_protected = 1;
+ }
+
+ stm32x_info->probed = 1;
+
return ERROR_OK;
}
+int stm32x_auto_probe(struct flash_bank_s *bank)
+{
+ stm32x_flash_bank_t *stm32x_info = bank->driver_priv;
+ if (stm32x_info->probed)
+ return ERROR_OK;
+ return stm32x_probe(bank);
+}
+
int stm32x_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
return ERROR_OK;
diff --git a/src/flash/stm32x.h b/src/flash/stm32x.h
index b1d70e58..b79e1528 100644
--- a/src/flash/stm32x.h
+++ b/src/flash/stm32x.h
@@ -34,6 +34,7 @@ typedef struct stm32x_flash_bank_s
{
stm32x_options_t option_bytes;
working_area_t *write_algorithm;
+ int probed;
} stm32x_flash_bank_t;
/* stm32x register locations */