[PATCH v3 0/3] add memcpy support for sdma

This patchset is to add memcpy interface for imx-sdma, besides,to support dmatest and enable config by default, so that could test dma easily without any other device support such as uart/audio/spi... Change from v2: 1. remove 'copy_align' since sdma script for memory_2_memory will handle

[PATCH v3 0/3] add memcpy support for sdma

This patchset is to add memcpy interface for imx-sdma, besides,to support dmatest and enable config by default, so that could test dma easily without any other device support such as uart/audio/spi... Change from v2: 1. remove 'copy_align' since sdma script for memory_2_memory will handle