1struct stm32_flash_regs { 2 u32 acr; 3 u32 key; 4 u32 optkeyr; 5 u32 sr; 6 u32 cr; 7 u32 optcr; 8 u32 optcr1; 9}; 10 11#define STM32_FLASH_KEY1 0x45670123 12#define STM32_FLASH_KEY2 0xCDEF89AB 13 14#define STM32_FLASH_SR_BSY (1 << 16) 15 16#define STM32_FLASH_CR_PG (1 << 0) 17#define STM32_FLASH_CR_SER (1 << 1) 18#define STM32_FLASH_CR_STRT (1 << 16) 19#define STM32_FLASH_CR_LOCK (1 << 31) 20#define STM32_FLASH_CR_SNB_OFFSET 3 21#define STM32_FLASH_CR_SNB_MASK (15 << STM32_FLASH_CR_SNB_OFFSET) 22 23/* Flash ACR: Access control register */ 24#define FLASH_ACR_WS(n) n 25#define FLASH_ACR_PRFTEN (1 << 8) 26#define FLASH_ACR_ICEN (1 << 9) 27#define FLASH_ACR_DCEN (1 << 10) 28