diff options
Diffstat (limited to 'drivers/tty/serial/samsung.c')
| -rw-r--r-- | drivers/tty/serial/samsung.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index dc5a4edbc450..78aea1a49ad8 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -965,16 +965,29 @@ static struct s3c24xx_uart_port s3c24xx_serial_ports[CONFIG_SERIAL_SAMSUNG_UARTS /* s3c24xx_serial_resetport * - * wrapper to call the specific reset for this port (reset the fifos - * and the settings) + * reset the fifos and other the settings. */ -static inline int s3c24xx_serial_resetport(struct uart_port *port, - struct s3c2410_uartcfg *cfg) +static void s3c24xx_serial_resetport(struct uart_port *port, + struct s3c2410_uartcfg *cfg) { struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port); + unsigned long ucon = rd_regl(port, S3C2410_UCON); + unsigned int ucon_mask; - return (info->reset_port)(port, cfg); + ucon_mask = info->clksel_mask; + if (info->type == PORT_S3C2440) + ucon_mask |= S3C2440_UCON0_DIVMASK; + + ucon &= ucon_mask; + wr_regl(port, S3C2410_UCON, ucon | cfg->ucon); + + /* reset both fifos */ + wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH); + wr_regl(port, S3C2410_UFCON, cfg->ufcon); + + /* some delay is required after fifo reset */ + udelay(1); } |