[PATCH v2 2/2] serial: mxc: have putc use the TXFIFO

[Johannes Schneider]

only waiting for TXEMPTY leads to corrupted messages going over the
wire - which is fixed by making use of the FIFO

Signed-off-by: Johannes Schneider <johannes.schneider at leica-geosystems.com>
---

(no changes since v1)

 drivers/serial/serial_mxc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/serial/serial_mxc.c b/drivers/serial/serial_mxc.c
index 5f283cc635..1e0add7281 100644
--- a/drivers/serial/serial_mxc.c
+++ b/drivers/serial/serial_mxc.c
@@ -309,7 +309,7 @@ static int mxc_serial_putc(struct udevice *dev, const char ch)
 	struct mxc_serial_plat *plat = dev_get_plat(dev);
 	struct mxc_uart *const uart = plat->reg;
 
-	if (!(readl(&uart->ts) & UTS_TXEMPTY))
+	if (readl(&uart->ts) & UTS_TXFULL)
 		return -EAGAIN;
 
 	writel(ch, &uart->txd);
-- 
2.25.1