[U-Boot] Pull request for mmc sub-system for v2019.07

[Peng Fan]

Hi Tom,

I am not able to setup ssh to denx mmc tree, so use my github for this request-pull,
please see whether this is ok for you.
Please pull mmc-2019-5-3 for v2019.07-rc1
Travis build: https://travis-ci.org/MrVan/u-boot/builds/527760370

Thanks,
Peng.

The following changes since commit b4ee6daad7a2604ca9466b2ba48de86cc27d381f:

  Merge tag 'u-boot-imx-20190426' of git://git.denx.de/u-boot-imx (2019-05-01 07:25:51 -0400)

are available in the Git repository at:

  https://github.com/MrVan/u-boot.git tags/mmc-2019-5-3

for you to fetch changes up to 37cb626da25d0d895079c85866d0c2030cd98438:

  mmc: sdhci: Add Support for ADMA2 (2019-05-03 20:44:11 +0800)

----------------------------------------------------------------
- adma support for sdhci
- a few fixes to fsl_esdhc
----------------------------------------------------------------
Faiz Abbas (2):
      mmc: sdhci: Move DMA handling to prepare_dma() function
      mmc: sdhci: Add Support for ADMA2

Ye Li (2):
      mmc: fsl_esdhc: fix sd/mmc ddr mode clock setting issue
      mmc: fsl_esdhc: Fix wp_enable issue

 drivers/mmc/Kconfig     |  14 ++++++++++++
 drivers/mmc/fsl_esdhc.c |  41 +++++++++++++++++++++++++--------
 drivers/mmc/sdhci.c     | 188 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----------------------------------
 include/sdhci.h         |  44 +++++++++++++++++++++++++++++++++++
 4 files changed, 233 insertions(+), 54 deletions(-)