Dear Henrik,
In message 1368718669.25965.14.camel@localhost you wrote:
I do not like having these things arch specific. I implemented it as an ARMv7 hook only because there is no general cross-platform u-boot function for clearing the icache. I'd much rather have a generic function call for invalidating the cache and leave it up to the arches to get it implemented where needed.
There is a common, architecture-independent C API that implements cache flushing/invalidation; please re-read the summary at [1]
[1] http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/158101/focus=158559
Or maybe just punt it. If you are on an arch with incoherent caches then make sure to make use of the cache command to flush caches and maybe even disable caches before using go.
The cache commands currently do not support subcommands for flushing / invalidating the caches. See again [1].
Best regards,
Wolfgang Denk