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This patch reduces on FEL protocol overhead for the 'multiple'
readl/writel transfers (functions that do word-aligned memory
access on the SoC). The ARM "scratch" code now takes a word count
and is able to work with buffered data, so the host is no longer
required to transfer single words in a piecemeal fashion.
Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>