[U-Boot] [PATCH v3 0/6] ARM: kirkwood: mvebu_mmc: Speed up access time

[Gérald Kerma]

This serie of patches speed up access time of MVEBUMMC driver

This is allowed by a fix in MVEBUMMC init status check inspired from linux MVSDIO driver.
	 * Hardware weirdness.  The FIFO_EMPTY bit of the HW_STATE
	 * register is sometimes not set before a while when some
	 * "unusual" data block sizes are used (such as with the SWITCH
	 * command), even despite the fact that the XFER_DONE interrupt
	 * was raised.  And if another data transfer starts before
	 * this bit comes to good sense (which eventually happens by
	 * itself) then the new transfer simply fails with a timeout.

It allows about 10x to 40x faster access time transfer on SHEEVAPLUG MMC
It may also fixes some SD types incompatibilities

### before patch

Marvell>> ext2load mmc 0:1 0x800000 uImage
1613392 bytes read in 977 ms (1.6 MiB/s)

### with fix

Marvell>> ext2load mmc 0:1 0x800000 uImage
1613392 bytes read in 83 ms (18.5 MiB/s)


Gérald Kerma (6):
  MVEBUMMC : Change copyright date
  MVEBUMMC : Speed up access time
  MVEBUMMC : FIX debug strings
  MVEBUMMC : REMOVE unnecessary delays
  MVEBUMMC : CLEAN code
  MVEBUMMC : REMOVE unnecessary delay from init

 drivers/mmc/mvebu_mmc.c | 103 ++++++++++++++++++++++++++++--------------------
 include/mvebu_mmc.h     |   1 +
 2 files changed, 61 insertions(+), 43 deletions(-)

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2.1.3