cbmem console: use cache-as-ram API and cleanup

Allow for automatic cache-as-ram migration for the cbmem
console. The code was refactored in the thought of making
it easier to read. The #ifdefs still exist, but they are no
longer sprinkled throughout the code. The cbmem_console_p
variable now exists globally in both romstage and ramstage.
However, the cbmem_console_p is referenced using the
cache-as-ram API. When cbmem is initialized the console
is automatically copied over by calling cbmemc_reinit()
through a callback.

Change-Id: I9f4a64e33c58b8b7318db27942e37c13804e6f2c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3235
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1 file changed