[U-Boot] axs101: flush DMA buffer descriptors before DMA transactons starts

[Tom Rini]

On Fri, Mar 21, 2014 at 04:57:47PM +0400, Alexey Brodkin wrote:

> CPU sets DMA buffer descriptors with data required for inetrnal DMA such as:
>  * Ownership of BD
>  * Buffer size
>  * Pointer to data buffer in memory
> 
> Then we need to make sure DMA engine of NAND controller gets proper data.
> For this we flush buffer rescriptor.
> 
> Then we're  ready for DMA transaction.
> 
> Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>

Applied to u-boot/master, thanks!

-- 
Tom
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