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authorHaavard Skinnemoen <hskinnemoen@atmel.com>2007-05-02 13:22:38 +0200
committerHaavard Skinnemoen <hskinnemoen@atmel.com>2007-05-03 10:00:03 +0200
commit04fcb5d38bc90779cd9a710d60702075986f0e29 (patch)
treeaa2d1367248f7ed77d4a1e2c1fc1a7bca96d831c /board/ssv/common/cmd_sled.c
parent37837828d89084879bee2f2b8c7c68d4695940df (diff)
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macb: Introduce a few barriers when dealing with DMA descriptors
There were a few theoretical possibilities that the compiler might optimize away DMA descriptor reads and/or writes and thus cause synchronization problems with the hardware. Insert barriers where we depend on reads/writes actually hitting memory. Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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