xtensa: s6000 dma engine support

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There are four slightly different dma engines on the s6000 family.
One for memory-memory transfers, the other three for memory-device.

This patch implements a platform-specific kernel-API to control these
engines.  It is needed for the network, video, audio peripherals on
s6000.

Signed-off-by: Oskar Schirmer <os@emlix.com>
Signed-off-by: Daniel Glockner <dg@emlix.com>
Signed-off-by: Fabian Godehardt <fg@emlix.com>
Cc: Daniel Glockner <dg@emlix.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Zankel <chris@zankel.net>

...

This commit is contained in:

Oskar Schirmer 2009-06-10 12:58:45 -07:00 • committed by Chris Zankel

parent 1beee21030

commit f24e552c2d

3 changed files with 561 additions and 1 deletions

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2

arch/xtensa/variants/s6000/Makefile

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173

arch/xtensa/variants/s6000/dmac.c

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387

arch/xtensa/variants/s6000/include/variant/dmac.h

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