diff options
Diffstat (limited to 'drivers/tty/serial/mvf.c')
| -rw-r--r-- | drivers/tty/serial/mvf.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/tty/serial/mvf.c b/drivers/tty/serial/mvf.c index 66dba76081e8..cb0e98ffb527 100644 --- a/drivers/tty/serial/mvf.c +++ b/drivers/tty/serial/mvf.c @@ -1023,6 +1023,29 @@ static int imx_uart_ioctl(struct uart_port *uport, unsigned int cmd, } +#if defined(CONFIG_CONSOLE_POLL) +static int imx_poll_get_char(struct uart_port *port) +{ + struct imx_port *sport = (struct imx_port *)port; + int ch; + + while (!(readb(sport->port.membase + MXC_UARTSR1) & MXC_UARTSR1_RDRF)); + + ch = readb(sport->port.membase + MXC_UARTDR); + return(ch & 0xff); +} + +static void imx_poll_put_char(struct uart_port *port, unsigned char c) +{ + struct imx_port *sport = (struct imx_port *)port; + + while (!(readb(sport->port.membase + MXC_UARTSR1) & MXC_UARTSR1_TDRE)) + barrier(); + + writeb(c, sport->port.membase + MXC_UARTDR); +} +#endif + static struct uart_ops imx_pops = { .tx_empty = imx_tx_empty, .set_mctrl = imx_set_mctrl, @@ -1041,6 +1064,10 @@ static struct uart_ops imx_pops = { .config_port = imx_config_port, .verify_port = imx_verify_port, .ioctl = imx_uart_ioctl, +#if defined(CONFIG_CONSOLE_POLL) + .poll_get_char = imx_poll_get_char, + .poll_put_char = imx_poll_put_char, +#endif }; static struct imx_port *imx_ports[UART_NR]; |