[PATCH v4 01/21] serial: rewrite pxa2xx-uart to use 8250_core

Rob Herring robherring2 at gmail.com
Mon Jan 19 10:08:21 PST 2015

On Wed, Apr 16, 2014 at 12:13 PM, Sergei Ianovich <ynvich at gmail.com> 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 at gmail.com>
> Reviewed-by: Heikki Krogerus <heikki.krogerus at linux.intel.com>
> Reviewed-by: James Cameron <quozl at laptop.org>
> Acked-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
> ---
>  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.


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