include: delete unused header files

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

Introduce common timer functions

Many platforms duplicate pretty much the same timer code yet they all have
a 32-bit freerunning counter register. Create a common implementation that
minimally requi

Introduce common timer functions

Many platforms duplicate pretty much the same timer code yet they all have
a 32-bit freerunning counter register. Create a common implementation that
minimally requires 2 or 3 defines to add timer support:

CONFIG_SYS_TIMER_RATE - Clock rate of the timer counter
CONFIG_SYS_TIMER_COUNTER - Address of 32-bit counter
CONFIG_SYS_TIMER_COUNTS_DOWN - Define if counter counts down

All functions are weak or ifdef'ed so they can still be overriden by any
platform.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>

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ppc4xx: Remove support for PPC405CR CPUs

This patch removes support for the APM 405CR CPU.
This CPU is EOL and no board uses this chip.

Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu>