Messages in this thread | | | Date | Fri, 24 May 2013 12:20:29 +0100 | From | Russell King - ARM Linux <> | Subject | Re: [PATCH] ARM: at91: Fix: Change internal SRAM memory type to "MT_MEMORY_SO" |
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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.
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