commit 00e1b3a3d196ae876370633b32007bf98584e748
author Krzysztof Halasa <khc@pm.waw.pl> Sun Mar 23 01:36:48 2014 +0100
committer Arnd Bergmann <arnd@arndb.de> Wed Mar 26 23:08:11 2014 +0100
tree c3a74ed0f4b674b25a5c7664735476b3ad0dcaf2
parent 53ad835ce7050dc3a3b3343fb07636db86783e26

IXP4xx: Fix DMA masks.

Now, devices will have 32-bit default DMA masks (0xFFFFFFFF) as per DMA API.

Fixes:
$ ifconfig eth0 up
net eth0: coherent DMA mask is unset

$ ifconfig hdlc0 up
net hdlc0: coherent DMA mask is unset

Also fixes a cosmetic off-by-one bug which caused DMA transfers ending exactly
on the 64 MiB boundary to go through dmabounce unnecessarily.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Tested-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>