hvc_console patches

[Anton Blanchard]

Hi,

Milton Miller has done a lot of work to clean up our hvc_console code.

One of the important things the following patch series does is separate
the VIO layer from the hvc_console code. With the VIO specific code
removed any ppc64 platform, or even any architecture, can use
hvc_console as a generic polling console. You simply have to supply a
get_chars and put_chars method and hvc_console does the rest of the
work. You can even use it for an interrupt driven console.

Its great. And here it comes.

Anton