diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index 6e141429c980..ed6af7e3a8d3 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -2803,7 +2803,9 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
 	}
 
 	serial8250_set_divisor(port, baud, quot, frac);
-
+#ifdef CONFIG_ARCH_ROCKCHIP
+	up->fcr = UART_FCR_ENABLE_FIFO | UART_FCR_T_TRIG_10 | UART_FCR_R_TRIG_10;
+#endif
 	/*
 	 * LCR DLAB must be set to enable 64-byte FIFO mode. If the FCR
 	 * is written without DLAB set, this mode will be disabled.