Re: XScale 8250 patches cause malfunction on AMD-8111

From: Andrew Morton
Date: Mon Mar 07 2005 - 21:30:42 EST


Russell King <rmk+lkml@xxxxxxxxxxxxxxxx> wrote:
>
> On Mon, Mar 07, 2005 at 08:56:54PM +0100, Petr Vandrovec wrote:
> > Well, problem is not in bit 6 in IER, but in bit 6 in high divisor byte,
> > as DLAB is set to one from previous probe. This simple clear of LCR
> > register fixes problem with (probably all 16550A) chips being detected
> > as XScale, and in addition to it it does not switch my 115200Bd serial
> > line to 7Bd mode (0x4001 divisor) anymore.
>
> Good catch, thanks. I'd preferably like to see Chris Wedgwood test this
> before applying it - I'm sure it'll fix his problem as well, but I'd
> like to be sure.

It fixes it on my box. Thanks, all.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/