the following patch was just integrated into master:
commit 2354ef8869a287cf4c7de792c17485ad82b026cf
Author: David Hendricks <[email protected]>
Date: Sun Feb 3 20:47:38 2013 -0800
exynos/snow: get rid of board-specific arbitration code
Snow's AP, EC, PMU, and smarty battery share a bus. Both the AP and
EC can act as a master, so to avoid conflicts an arbitration
mechanism consisting of two GPIOs is used.
By default, the AP "owns" the bus unless it is off (in which case
the EC doesn't monitor the arbitration pins). This means the boot
firmware does not need to worry about these lines. The payload may
if it needs to communicate with the EC, though.
In any case, board-specific bus arbitration logic does not belong
in a low-level driver that is supposed to be generic for an entire
CPU family. If the payload needs to talk to the EC, we'll deal with
it there.
Change-Id: I0774d4592af2b21b6ad668441532c5ceab988404
Signed-off-by: David Hendricks <[email protected]>
Reviewed-on: http://review.coreboot.org/2272
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <[email protected]>
Build-Tested: build bot (Jenkins) at Mon Feb 4 06:03:56 2013, giving +1
Reviewed-By: Ronald G. Minnich <[email protected]> at Mon Feb 4 06:08:20
2013, giving +2
See http://review.coreboot.org/2272 for details.
-gerrit
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