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flash: add stm32f42x/stm32f43x support 

Other than a larger memory layout these new devices also have an extra
MER1 bit to perform the mass erase.

Change-Id: I7110a05bac95c1707160d1f5622181664291eb4a
Signed-off-by: Spencer Oliver <spen@spen-soft.co.uk>
Reviewed-on: http://openocd.zylin.com/985
Tested-by: jenkins
Reviewed-by: Peter Stuge <peter@stuge.se>
__archive__
Spencer Oliver 2012-11-19 17:21:57 +00:00 committed by Peter Stuge
parent 78807eb6ec
commit 9785f51f19
1 changed files with 25 additions and 3 deletions
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26
src/flash/nor/stm32f2x.c
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@ -116,6 +116,7 @@
#define FLASH_PG (1 << 0) #define FLASH_PG (1 << 0)
#define FLASH_SER (1 << 1) #define FLASH_SER (1 << 1)
#define FLASH_MER (1 << 2) #define FLASH_MER (1 << 2)
#define FLASH_MER1 (1 << 15)
#define FLASH_STRT (1 << 16) #define FLASH_STRT (1 << 16)
#define FLASH_PSIZE_8 (0 << 8) #define FLASH_PSIZE_8 (0 << 8)
#define FLASH_PSIZE_16 (1 << 8) #define FLASH_PSIZE_16 (1 << 8)
@ -601,6 +602,9 @@ static int stm32x_probe(struct flash_bank *bank)
case 0x413: case 0x413:
max_flash_size_in_kb = 1024; max_flash_size_in_kb = 1024;
break; break;
case 0x419:
max_flash_size_in_kb = 2048;
break;
default: default:
LOG_WARNING("Cannot identify target as a STM32 family."); LOG_WARNING("Cannot identify target as a STM32 family.");
return ERROR_FAIL; return ERROR_FAIL;
@ -625,6 +629,10 @@ static int stm32x_probe(struct flash_bank *bank)
/* calculate numbers of pages */ /* calculate numbers of pages */
int num_pages = (flash_size_in_kb / 128) + 4; int num_pages = (flash_size_in_kb / 128) + 4;
/* check for larger 2048 bytes devices */
if (flash_size_in_kb > 1024)
num_pages += 4;
/* check that calculation result makes sense */ /* check that calculation result makes sense */
assert(num_pages > 0); assert(num_pages > 0);
@ -643,7 +651,17 @@ static int stm32x_probe(struct flash_bank *bank)
setup_sector(bank, 4, 1, 64 * 1024); setup_sector(bank, 4, 1, 64 * 1024);
/* dynamic memory */ /* dynamic memory */
setup_sector(bank, 4 + 1, num_pages - 5, 128 * 1024); setup_sector(bank, 4 + 1, MAX(12, num_pages) - 5, 128 * 1024);
if (num_pages > 12) {
/* fixed memory for larger devices */
setup_sector(bank, 12, 4, 16 * 1024);
setup_sector(bank, 16, 1, 64 * 1024);
/* dynamic memory for larger devices */
setup_sector(bank, 16 + 1, num_pages - 5 - 12, 128 * 1024);
}
for (i = 0; i < num_pages; i++) { for (i = 0; i < num_pages; i++) {
bank->sectors[i].is_erased = -1; bank->sectors[i].is_erased = -1;
@ -699,7 +717,8 @@ static int get_stm32x_info(struct flash_bank *bank, char *buf, int buf_size)
snprintf(buf, buf_size, "unknown"); snprintf(buf, buf_size, "unknown");
break; break;
} }
} else if ((device_id & 0xfff) == 0x413) { } else if (((device_id & 0xfff) == 0x413) ||
((device_id & 0xfff) == 0x419)) {
printed = snprintf(buf, buf_size, "stm32f4x - Rev: "); printed = snprintf(buf, buf_size, "stm32f4x - Rev: ");
buf += printed; buf += printed;
buf_size -= printed; buf_size -= printed;
@ -740,6 +759,9 @@ static int stm32x_mass_erase(struct flash_bank *bank)
return retval; return retval;
/* mass erase flash memory */ /* mass erase flash memory */
if (bank->num_sectors > 12)
retval = target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_CR), FLASH_MER | FLASH_MER1);
else
retval = target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_CR), FLASH_MER); retval = target_write_u32(target, stm32x_get_flash_reg(bank, STM32_FLASH_CR), FLASH_MER);
if (retval != ERROR_OK) if (retval != ERROR_OK)
return retval; return retval;