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authorSteven Miao <realmz6@gmail.com>2011-05-05 14:14:48 +0800
committerMike Frysinger <vapier@gentoo.org>2011-05-25 08:24:14 -0400
commitf9691bb9674b6822ace56370a08c6fc02addf6cb (patch)
tree40f9f39d38326c498ea5f3d63cd2c1e059b8bf21 /arch/blackfin/mach-bf537
parent7a7a430f7498cd55820232d8e3f144161138f91a (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>
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