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[Sascha Hauer]

The following adds a caching block layer to speed up for
example mmc card operations. Also, write support on ata and
mci devices is made optional to save some binary space.

Sascha Hauer (4):
      add block support
      ata: use block support
      ata: make write support optional
      mci: make write support optional

 common/Kconfig           |    6 +
 common/Makefile          |    1 +
 common/block.c           |  263 ++++++++++++++++++++++++++++++++++++++++++++++
 drivers/ata/Kconfig      |    5 +
 drivers/ata/disk_drive.c |  196 +++++++---------------------------
 drivers/mci/Kconfig      |    5 +
 drivers/mci/mci-core.c   |    6 +
 fs/Makefile              |    2 +-
 include/block.h          |   32 ++++++
 9 files changed, 357 insertions(+), 159 deletions(-)
 create mode 100644 common/block.c
 create mode 100644 include/block.h