diff options
| -rw-r--r-- | drivers/tty/serial/mpc52xx_uart.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c index e9a770d77a6e..bedac0d4c9ce 100644 --- a/drivers/tty/serial/mpc52xx_uart.c +++ b/drivers/tty/serial/mpc52xx_uart.c @@ -262,8 +262,9 @@ static unsigned int mpc5200b_psc_set_baudrate(struct uart_port *port, port->uartclk / 4); divisor = (port->uartclk + 2 * baud) / (4 * baud); - /* select the proper prescaler and set the divisor */ - if (divisor > 0xffff) { + /* select the proper prescaler and set the divisor + * prefer high prescaler for more tolerance on low baudrates */ + if (divisor > 0xffff || baud <= 115200) { divisor = (divisor + 4) / 8; prescaler = 0xdd00; /* /32 */ } else |