On Wed, Apr 16, 2014 at 12:13 PM, Sergei Ianovich <ynvich@xxxxxxxxx> wrote: > pxa2xx-uart was a separate uart platform driver. It was declaring > the same device names and numbers as 8250 driver. As a result, > it was impossible to use 8250 driver on PXA SoCs. > > Upon closer examination pxa2xx-uart turned out to be a clone of > 8250_core driver. > > Workaround for Erratum #19 according to Marvel(R) PXA270M Processor > Specification Update (April 19, 2010) is dropped. 8250_core reads > from FIFO immediately after checking DR bit in LSR. > > Signed-off-by: Sergei Ianovich <ynvich@xxxxxxxxx> > Reviewed-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx> > Reviewed-by: James Cameron <quozl@xxxxxxxxxx> > Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > --- > Resenging together with the rest of the series as the series > breaks without this one at [PATCH 12/21] Whatever happened with merging this? I'm asking because either this or fixes to PXA uart are needed to coexist with the 8250 driver and for earlycon to work. Rob -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
