Manuel Lauss 619672bf2d MIPS: Alchemy: fix dbdma2
[ Upstream commit 2d645604f69f3a772d58ead702f9a8e84ab2b342 ]

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 15:45:36 +02:00
..
2023-06-21 15:45:36 +02:00
2023-02-01 08:23:19 +01:00
2023-02-01 08:23:19 +01:00
2023-03-17 08:45:17 +01:00