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The DMA didn't work properly because the DMA descriptor wasn't properly cleaned after it was used once. Also, the DMA_ENABLE bit was enabled/disabled too late. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Stefano Babic <sbabic@denx.de> Cc: Fabio Estevam <festevam@freescale.com> Cc: Andy Fleming <afleming@freescale.com>