[PATCH] ARM: at91: Fix: Change internal SRAM memory type to "MT_MEMORY_SO"

[Russell King - ARM Linux]

On Fri, May 24, 2013 at 07:11:04AM +0000, Yang, Wenyou wrote:
> The story is: for sama5d3x with Cortex-A5 core, if not so, when copying
> code snippet to the internal SRAM, then jump to run this code, but fail
> to run.

And that is where your mistake is - you forgot that you're working with
a CPU with harvard caches which will require some cache maintanence
between copying the code and executing it.

You want to look at flush_icache_range() rather than making this memory
strongly ordered.