Merge branch 'cache' (early part)

arch/arm/common/dmabounce.c

arch/arm/include/asm/cacheflush.h

arch/arm/mm/cache-fa.S

arch/arm/mm/cache-l2x0.c

arch/arm/mm/cache-v3.S

arch/arm/mm/cache-v4.S

arch/arm/mm/cache-v4wb.S

arch/arm/mm/cache-v4wt.S

arch/arm/mm/cache-v6.S

arch/arm/mm/cache-v7.S

arch/arm/mm/flush.c

arch/arm/mm/highmem.c

arch/arm/mm/nommu.c

arch/arm/mm/proc-arm1020.S

arch/arm/mm/proc-arm1020e.S

arch/arm/mm/proc-arm1022.S

arch/arm/mm/proc-arm1026.S

arch/arm/mm/proc-arm920.S

arch/arm/mm/proc-arm922.S

arch/arm/mm/proc-arm925.S