Manuel Lauss dd035c08ee MIPS: Alchemy: fix dbdma2 ... [ Upstream commit 2d645604f6 ] Various fixes for the Au1200/Au1550/Au1300 DBDMA2 code: - skip cache invalidation if chip has working coherency circuitry. - invalidate KSEG0-portion of the (physical) data address. - force the dma channel doorbell write out to bus immediately with a sync. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-06-21 16:00:53 +02:00
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