> > > + /* Min baud rate = 6bps and Max Baud Rate is 10Mbps for 100Mhz
> > clk */
> > > + baud = uart_get_baud_rate(port, termios, old, 0, 460800);
> > > + xuartps_set_baud_rate(port, baud);
> >
> > So why pass 460800 ?
>
> Seems like 115200 is better number.
Well if it can do 10Mbit why not pass 10Mbit as the upper limit ?
> > And set the baud rate (see 8250.c for an example). Note that the
> helper
> > functions know about mapping slight errors so if you are asked for
> 9600
> > and the hardware does 9575 it will report B9600 as you'd expect not do
> > something crazy.
> >
>
> Sorry I didn't follow what you meant above. The h/w is a bit different
> with it's
> baud rate settings due to 2 different dividers.
After you've worked out what baud rate you actually set do
/* Don't rewrite B0 */
if (tty_termios_baud_rate(termios))
tty_termios_encode_baud_rate(termios, baud, baud);
which will ensure that the termios reflects the actual rate.
Alan
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