diff options
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7m/stm32f4/flash.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7m/stm32f4/flash.c b/arch/arm/cpu/armv7m/stm32f4/flash.c index ae6379070f..dd058bd643 100644 --- a/arch/arm/cpu/armv7m/stm32f4/flash.c +++ b/arch/arm/cpu/armv7m/stm32f4/flash.c @@ -97,6 +97,9 @@ int flash_erase(flash_info_t *info, int first, int last) while (readl(&STM32_FLASH->sr) & STM32_FLASH_SR_BSY) ; + /* clear old sector number before writing a new one */ + clrbits_le32(&STM32_FLASH->cr, STM32_FLASH_CR_SNB_MASK); + if (bank == 0) { setbits_le32(&STM32_FLASH->cr, (i << STM32_FLASH_CR_SNB_OFFSET)); |