Code is relocated from flash to RAM in cpu/mips/start.S/relocate_code(). After the code is moved a comment in the code says, "If caches were enabled, we would have to flush them here." Based on code in the same file, the caches are enabled - and I agree that the data cache needs to be flushed, (and instruction cached invalidated to be safe) but it isn't. Is there a reason it's not?
Also, flush_cache() is not implemented in cpu/mips/cpu.c. This function appears to be required by cmd_net.c/netboot_common(). Is there a reason flush_cache() is not implemented?
I ask because I'm seeing unexplained code behavior that goes away if I don't enable the caches.
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