[U-Boot] [PATCH] serial: 16550: Add JZ47xx support

[Paul Burton]

On Thu, May 26, 2016 at 12:21:23AM +0200, Marek Vasut wrote:
> Not for SPL, which has 14 kiB size limit and it is itching to overflow.
> I am literally counting bytes in the SPL and removing slop from
> structures to make it fit, just barely. With the USB loader, I can
> brutalize the SPL into having extremely rudimentary UART support now
> (like printch() being the most advanced output mechanism, but you can
> only use it three times, otherwise the code won't fit and the board is
> eaten by demons) and this is where this patch comes into play.
> 
> So yes, for full u-boot, this _should_ be part of DT. For SPL, please apply.

Hi Marek,

Interesting :) May I ask which platform/SoC you're working with? Have
you seen the (unfortunately currently out of tree) port we did for the
JZ4780-based Ci20? I recall the pain of squeezing SPL down to a small
enough size well...

https://github.com/MIPS/CI20_u-boot

Thanks,
    Paul