In the imx_startup(), we will reset the uart port which will reset all
the FIFOs, including the URXD.
So the code to clear the RX FIFO is redandunt. Just remove it.
Signed-off-by: Huang Shijie <b32955@xxxxxxxxxxxxx>
---
drivers/tty/serial/imx.c | 9 ---------
1 files changed, 0 insertions(+), 9 deletions(-)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 64901d0..febf400 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1161,15 +1161,6 @@ static int imx_startup(struct uart_port *port)
temp |= UCR2_IRTS;
writel(temp, sport->port.membase + UCR2);
- if (USE_IRDA(sport)) {
- /* clear RX-FIFO */
- int i = 64;
- while ((--i > 0) &&
- (readl(sport->port.membase + URXD0) & URXD_CHARRDY)) {
- barrier();
- }
- }
-
if (!is_imx1_uart(sport)) {
temp = readl(sport->port.membase + UCR3);
temp |= IMX21_UCR3_RXDMUXSEL;
--
1.7.8
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