Messages in this thread Patch in this message | | | From | Huang Shijie <> | Subject | [PATCH 2/2] serial: imx: remove the redandunt code | Date | Wed, 21 May 2014 08:56:29 +0800 |
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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@freescale.com> --- 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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