Hi Paul,
On Thursday 13 September 2007, Paul Marciano wrote:
- I'm using do_bootelf() to invoke my image. The
lines: addr = load_elf_image(addr); ... if (dcache_status()) dcache_disable(); ... (function call through addr)
The comment embedded in the code says the dcache is flushed already, but in cpu/mips/cpu.c, the function flush_cache() is empty so the dcache isn't flushed.
As it's not flushed, and dcache_disable() just turns it off, if the run address is somewhere that hasn't naturally spilled out of the dcache during the load, the CPU will fetch garbage.
On PPC platforms, dcache_disable() first flushed the dcache and then disables it. If this flushing is missing in your MIPS implementation you should probably add this.
Best regards, Stefan
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