diff options
author | Steven Miao <realmz6@gmail.com> | 2011-05-05 14:14:48 +0800 |
---|---|---|
committer | Mike Frysinger <vapier@gentoo.org> | 2011-05-25 08:24:14 -0400 |
commit | f9691bb9674b6822ace56370a08c6fc02addf6cb (patch) | |
tree | 40f9f39d38326c498ea5f3d63cd2c1e059b8bf21 /arch/blackfin/mach-bf548/boards/ezkit.c | |
parent | 7a7a430f7498cd55820232d8e3f144161138f91a (diff) |
Blackfin: work around anomaly 05000480
Anomaly 05000480 on BF537 rev 0.0, 0.1, 0.2:
Multiple Simultaneous Urgent DMA Requests May Cause DMA System Instability
Suggested Workaround:
Program the DMA Traffic Control Period to a non-zero value. This forces
the DMA block to group accesses together rather than allow arbitration for
each piece of data placed on the internal DMA bus.
Signed-off-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin/mach-bf548/boards/ezkit.c')
0 files changed, 0 insertions, 0 deletions