diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2013-03-14 18:31:53 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2013-03-15 08:22:21 +0100 |
| commit | a613c6848f933661af4094796d5b156be2f66cac (patch) | |
| tree | a7c60ba58fee80e8786de55516b34fe3e5db34f9 | |
| parent | b304bb0f153caa8047187e613949cdc0969466c1 (diff) | |
| download | barebox-a613c6848f933661af4094796d5b156be2f66cac.tar.gz barebox-a613c6848f933661af4094796d5b156be2f66cac.tar.xz | |
driver/serial: stm-serial: fix flush
Wait until fifo is empty, not until fifo is not full.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
| -rw-r--r-- | drivers/serial/stm-serial.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/serial/stm-serial.c b/drivers/serial/stm-serial.c index 3968892b8b..e1276bdeb5 100644 --- a/drivers/serial/stm-serial.c +++ b/drivers/serial/stm-serial.c @@ -34,6 +34,7 @@ #define UARTDBGDR 0x00 #define UARTDBGFR 0x18 +# define TXFE (1 << 7) # define TXFF (1 << 5) # define RXFE (1 << 4) #define UARTDBGIBRD 0x24 @@ -92,7 +93,7 @@ static void stm_serial_flush(struct console_device *cdev) struct stm_priv *priv = container_of(cdev, struct stm_priv, cdev); /* Wait for TX FIFO empty */ - while (readl(priv->base + UARTDBGFR) & TXFF) + while (!(readl(priv->base + UARTDBGFR) & TXFE)) ; } |