[U-Boot] [RFC/PATCH 0/3] Add optional dma transfers to mtest

[Peter Tyser <ptyser@xes-inc.com>]

This series tries to add a DMA memory test to the mtest tests.  The
DMA test performs bursts to SDRAM which can be useful in stressing memory
and can be difficult to produce reliably in certain circumstances (eg
running with data caches disabled).

It can be enabled on 85xx and 86xx boards by defining CONFIG_FSL_DMA,
CONFIG_SYS_ALT_MEMTEST, and CONFIG_SYS_DMA_MEMTEST.

Other platforms will need to support the dmacpy() function in order to
enable the DMA memory test.

Peter Tyser (3):
  fsl_dma: Make DMA transactions snoopable
  mtest: Add optional support for DMA memory test
  XPedite5200, XPedite5370: Enable DMA memory test

 common/cmd_mem.c              |   65 +++++++++++++++++++++++++++++++++++++++++
 drivers/dma/fsl_dma.c         |    4 +-
 include/configs/XPEDITE5200.h |    4 ++-
 include/configs/XPEDITE5370.h |    2 +
 4 files changed, 72 insertions(+), 3 deletions(-)