41 	struct stm32_usart *const usart = plat->base;  in stm32_serial_setbrg()  local
44 	if (((u32)usart & STM32_BUS_MASK) == STM32_APB1PERIPH_BASE)  in stm32_serial_setbrg()
46 	else if (((u32)usart & STM32_BUS_MASK) == STM32_APB2PERIPH_BASE)  in stm32_serial_setbrg()
55 	writel(tmp, &usart->brr);  in stm32_serial_setbrg()
63 	struct stm32_usart *const usart = plat->base;  in stm32_serial_getc()  local
65 	if ((readl(&usart->sr) & USART_SR_FLAG_RXNE) == 0)  in stm32_serial_getc()
68 	return readl(&usart->dr);  in stm32_serial_getc()
74 	struct stm32_usart *const usart = plat->base;  in stm32_serial_putc()  local
76 	if ((readl(&usart->sr) & USART_SR_FLAG_TXE) == 0)  in stm32_serial_putc()
79 	writel(c, &usart->dr);  in stm32_serial_putc()
87 	struct stm32_usart *const usart = plat->base;  in stm32_serial_pending()  local
90 		return readl(&usart->sr) & USART_SR_FLAG_RXNE ? 1 : 0;  in stm32_serial_pending()
92 		return readl(&usart->sr) & USART_SR_FLAG_TXE ? 0 : 1;  in stm32_serial_pending()
98 	struct stm32_usart *const usart = plat->base;  in stm32_serial_probe()  local
99 	setbits_le32(&usart->cr1, USART_CR1_RE | USART_CR1_TE | USART_CR1_UE);  in stm32_serial_probe()