diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/serial_cortina.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/serial/serial_cortina.c b/drivers/serial/serial_cortina.c index 3ae8fb46584..de8af5b0574 100644 --- a/drivers/serial/serial_cortina.c +++ b/drivers/serial/serial_cortina.c @@ -83,11 +83,13 @@ int ca_serial_setbrg(struct udevice *dev, int baudrate) static int ca_serial_getc(struct udevice *dev) { struct ca_uart_priv *priv = dev_get_priv(dev); - int ch; + unsigned int status; - ch = readl(priv->base + URX_DATA) & 0xFF; + status = readl(priv->base + UINFO); + if (status & UINFO_RX_FIFO_EMPTY) + return -EAGAIN; - return (int)ch; + return readl(priv->base + URX_DATA) & 0xFF; } static int ca_serial_putc(struct udevice *dev, const char ch) |