Re: [U-Boot] [PATCH] lib_ppc: rework the flush_cache

start_addr = 0 size = 0x1000

start will be 0 end will be 0x1000

The loop will flush the cache line at 0x1000, because it uses <= rather than <. That is outside the area that was requested to be

flushed.

Maybe it's not mapped. Or, maybe start + size = 0 and > nothing gets

flushed.

thanks, I got it. it was off-one error.