48 static int is_flash_locked(FLASH_TypeDef *regs)  in is_flash_locked()  argument
50 	return !!(regs->CR & FLASH_CR_LOCK);  in is_flash_locked()
53 static void write_enable(FLASH_TypeDef *regs)  in write_enable()  argument
55 	regs->CR |= FLASH_CR_PG;  in write_enable()
58 static void write_disable(FLASH_TypeDef *regs)  in write_disable()  argument
60 	regs->CR &= (~FLASH_CR_PG);  in write_disable()
63 static void erase_page_begin(FLASH_TypeDef *regs, unsigned int page)  in erase_page_begin()  argument
66 	regs->CR |= FLASH_CR_PER;  in erase_page_begin()
67 	regs->AR = FLASH_STM32_BASE_ADDRESS + page * FLASH_PAGE_SIZE;  in erase_page_begin()
72 	regs->CR |= FLASH_CR_STRT;  in erase_page_begin()
75 static void erase_page_end(FLASH_TypeDef *regs)  in erase_page_end()  argument
77 	regs->CR &= ~FLASH_CR_PER;  in erase_page_end()
82 static int is_flash_locked(FLASH_TypeDef *regs)  in is_flash_locked()  argument
84 	return !!(regs->PECR & FLASH_PECR_PRGLOCK);  in is_flash_locked()
87 static void write_enable(FLASH_TypeDef *regs)  in write_enable()  argument
91 	regs->PECR |= FLASH_PECR_PROG;  in write_enable()
95 static void write_disable(FLASH_TypeDef *regs)  in write_disable()  argument
98 	regs->PECR &= ~FLASH_PECR_PROG;  in write_disable()
101 static void erase_page_begin(FLASH_TypeDef *regs, unsigned int page)  in erase_page_begin()  argument
108 	regs->PECR |= FLASH_PECR_ERASE;  in erase_page_begin()
109 	regs->PECR |= FLASH_PECR_PROG;  in erase_page_begin()
116 static void erase_page_end(FLASH_TypeDef *regs)  in erase_page_end()  argument
119 	regs->PECR &= ~FLASH_PECR_PROG;  in erase_page_end()
120 	regs->PECR &= ~FLASH_PECR_ERASE;  in erase_page_end()
129 	FLASH_TypeDef *regs = FLASH_STM32_REGS(dev);  in write_value()  local
133 	if (is_flash_locked(regs)) {  in write_value()
151 	write_enable(regs);  in write_value()
163 	write_disable(regs);  in write_value()
172 	FLASH_TypeDef *regs = FLASH_STM32_REGS(dev);  in flash_stm32_block_erase_loop()  local
176 	if (is_flash_locked(regs)) {  in flash_stm32_block_erase_loop()
188 		erase_page_begin(regs, i);  in flash_stm32_block_erase_loop()
191 		erase_page_end(regs);  in flash_stm32_block_erase_loop()