| commit | f9691bb9674b6822ace56370a08c6fc02addf6cb | [log] [tgz] |
|---|---|---|
| author | Steven Miao <realmz6@gmail.com> | Thu May 05 14:14:48 2011 +0800 |
| committer | Mike Frysinger <vapier@gentoo.org> | Wed May 25 08:24:14 2011 -0400 |
| tree | 40f9f39d38326c498ea5f3d63cd2c1e059b8bf21 | |
| 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>