powerpc: Consolidate bootcount_{store|load} for PowerPC

This patch consolidates bootcount_{store|load} for PowerPC by
implementing a common version in arch/powerpc/lib/bootcount.c. This
code is now used by all PowerPC variants that currently have these
functions implemented.

The functions now use the proper IO-accessor functions to read/write the
values.

This code also supports two different bootcount versions:

a) Use 2 separate words (2 * 32bit) to store the bootcounter
b) Use only 1 word (2 * 16bit) to store the bootcounter

Version b) was already used by MPC5xxx.

Signed-off-by: Stefan Roese <[email protected]>
Acked-by: Detlev Zundel <[email protected]>
Acked-by: Kim Phillips <[email protected]>
          for 83xx parts
Cc: Michael Zaidman <[email protected]>
Cc: Wolfgang Denk <[email protected]>
Cc: Kim Phillips <[email protected]>
Cc: Anatolij Gustschin <[email protected]>

0 files changed, 0 insertions, 0 deletions