1 struct 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