diff options
| -rw-r--r-- | arch/arm/cpu/armv7m/stm32f4/flash.c | 3 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-stm32f4/stm32.h | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7m/stm32f4/flash.c b/arch/arm/cpu/armv7m/stm32f4/flash.c index ae63790..dd058bd 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)); diff --git a/arch/arm/include/asm/arch-stm32f4/stm32.h b/arch/arm/include/asm/arch-stm32f4/stm32.h index 3ed3801..7ca6dc3 100644 --- a/arch/arm/include/asm/arch-stm32f4/stm32.h +++ b/arch/arm/include/asm/arch-stm32f4/stm32.h @@ -104,6 +104,7 @@ struct stm32_flash_regs { #define STM32_FLASH_CR_STRT (1 << 16) #define STM32_FLASH_CR_LOCK (1 << 31) #define STM32_FLASH_CR_SNB_OFFSET 3 +#define STM32_FLASH_CR_SNB_MASK (15 << STM32_FLASH_CR_SNB_OFFSET) enum clock { CLOCK_CORE, |