Standard data flow for MMC/SD/SDIO cards requires that the mvsdio
controller be set for big endian operation.  This is causing problems
with buffers which length is not a multiple of 4 bytes as the last
partial word doesn't get shifted all the way and stored properly in
memory.  Let's compensate for this.
Signed-off-by: NNicolas Pitre <nico@marvell.com>
CC: stable@kernel.org
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Especially with Sandisk SDHC cards, the second SWITCH command was failing
with a timeout and the card was not recognized at all.  However if the
system was busy, or debugging was enabled, or a udelay(100) was inserted
before the second SWITCH command in the core code, then the timing was
so that the card started to work.

With some unusual block sizes, the data FIFO status doesn't indicate a
"empty" state right away when the data transfer is done.  Queuing
another data transfer in that condition results in a transfer timeout.

The empty FIFO bit eventually get set by itself in less than 50 usecs
when it is not set right away. So let's just poll for that bit before
configuring the controller with a new data transfer.
Signed-off-by: NNicolas Pitre <nico@marvell.com>
Signed-off-by: NPierre Ossman <pierre@ossman.eu>

Empirical evidences show that this is causing far more problems than it
solves when this mode is enabled in the host hardware.  Amongst those
cards that are known to be non functional when this bit is set are:

	A-Data "Speedy" 2GB SD card
	Kodak 512MB SD card
	Ativa 1GB MicroSD card
	Marvell 8688 (WIFI/Bluetooth) SDIO card

Since those cards do work on other host controllers which do honnor the
hs timing, the issue must be with this particular host hardware.
Signed-off-by: NNicolas Pitre <nico@marvell.com>
Signed-off-by: NPierre Ossman <pierre@ossman.eu>

Signed-off-by: NNicolas Pitre <nico@marvell.com>
Tested-by: NMartin Michlmayr <tbm@cyrius.com>
Signed-off-by: NPierre Ossman <pierre@ossman.eu>

Fix usage of obsolete parameters and functions in the driver's PM
callbacks.
Signed-off-by: NRabin Vincent <rabin@rab.in>
Acked-by: NNicolas Pitre <nico@marvell.com>
Signed-off-by: NPierre Ossman <pierre@ossman.eu>

This supports MMC/SD/SDIO currently found on the Kirkwood 88F6281 and
88F6192 SoC controllers.
Signed-off-by: NNicolas Pitre <nico@marvell.com>
Signed-off-by: NPierre Ossman <drzeus@drzeus.cx>