ARM: OMAP3: hwmod data: add HDQ/1-wire hwmod

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Add the HDQ1W hwmod for OMAP34xx, OMAP36xx, and AM3505/3517 devices.
According to the respective TRMs, it doesn't appear to be available for the
816x/814x or the AM335x.

The OCPIF_SWSUP_IDLE flag is added to work around an apparent hardware
bug: the hardware is not taking the CM_FCLKEN*_CORE.EN_HDQ bit into
account when considering whether to go idle:

    http://www.spinics.net/lists/linux-omap/msg63576.html

This causes HDQ transfers to fail or become corrupt.  Thanks to
NeilBrown for his help diagnosing and testing fixes for this problem.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: NeilBrown <neilb@suse.de>
Tested-by: NeilBrown <neilb@suse.de>

...

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Paul Walmsley 2012-05-08 11:34:28 -06:00

parent 03d830e8dc

commit 45a4bb067c

1 changed files with 28 additions and 0 deletions

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arch/arm/mach-omap2/omap_hwmod_3xxx_data.c

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