net: smc91x.c: switch to generic buf-to-buf DMA offload

Drop all PXA-DMA specific implementation details and rely on
dma_async_memcpy_buf_to_buf().

This patch is only compile-tested.

Signed-off-by: Daniel Mack <zonque@gmail.com>
net: smc911x.c: switch to generic buf-to-buf DMA offload

Drop all PXA-DMA specific implementation details and switch over to
generic dmaengine usage.

This patch is only compile-tested.

Signed-off-by: Daniel Mack <zonque@gmail.com>
ARM: pxa: register static mmp_pdma device

Drop the init call to the properietary dma subsystem and register the
mmp_pdma device.

Signed-off-by: Daniel Mack <zonque@gmail.com>
ARM: mmp: register static mmp_pdma device

Drop the init call to the properietary dma subsystem and register
the mmp_pdma device.

Signed-off-by: Daniel Mack <zonque@gmail.com>