From 85e5f5b7a7f8d889271f94791606cde62d81d53f Mon Sep 17 00:00:00 2001 From: kunhuahuang Date: Tue, 28 Apr 2015 02:25:45 +0800 Subject: [PATCH] stm32f4: fix serial output This patch fix the serial output. The source is from Kamil Lulko's "stm32f429-discovery board support" Thanks, Varcain. I learned a lot. Signed-off-by: kunhuahuang --- drivers/serial/serial_stm32.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/serial/serial_stm32.c b/drivers/serial/serial_stm32.c index 3c800961d1..8c613db95d 100644 --- a/drivers/serial/serial_stm32.c +++ b/drivers/serial/serial_stm32.c @@ -81,6 +81,10 @@ static int stm32_serial_getc(void) static void stm32_serial_putc(const char c) { struct stm32_serial *usart = (struct stm32_serial *)USART_BASE; + + if (c == '\n') + stm32_serial_putc('\r'); + while ((readl(&usart->sr) & USART_SR_FLAG_TXE) == 0) ; writel(c, &usart->dr); -- 2.25.1