[U-Boot] [PATCH v3 14/18] serial: 16550: allow the driver to support MediaTek serial
Ryder Lee
ryder.lee at mediatek.com
Mon Nov 5 08:37:57 UTC 2018
On Mon, 2018-11-05 at 10:20 +0800, Ryder Lee wrote:
> On Sat, 2018-11-03 at 00:09 -0600, Simon Glass wrote:
> > Hi Ryder,
> >
> > On 2 November 2018 at 09:15, Ryder Lee <ryder.lee at mediatek.com> wrote:
> > > This patch adds an extra operation in ns16550.c to suuport MediaTek
> > > SoCs as we have a highspeed register which influences the calcualtion
> > > of the divisor.
> > >
> > > Note that we don't support the baudrate greater than 115200 currently.
> > >
> > > Signed-off-by: Ryder Lee <ryder.lee at mediatek.com>
> > > Tested-by: Matthias Brugger <matthias.bgg at gmail.com>
> > > Reviewed-by: Simon Glass <sjg at chromium.org>
> > > ---
> > > drivers/serial/ns16550.c | 10 ++++++++++
> > > 1 file changed, 10 insertions(+)
> >
> > Actually it seems to me that we should have a compatible string for
> > this and deal with this at run-time?
> >
> > Is that easy to do here?
> >
>
> How about this:
>
> uart0: serial at 11002000 {
> compatible = "ns16550a";
> ....
> mediatek,highspeed = <0>;
> ....
>
> Ryder
>
Sorry, I didn't get it right. I will add a compatible string in
ns16550_serial_ids[] for MTK chips.
Ryder
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