linux-toradex.git/include/linux/mmc, branch v2.6.38.5

mmc: sh_mmcif: Convert to __raw_xxx() I/O accessors.

2011-01-14T06:57:47+00:00

When using the I/O accessors in raw mode from the boot stubs we don't
want to bother with any of the complexity associated with readl/writel
and friends. Furthermore, utilization within the context of the host
driver itself is all performed on an ioremapped window, so using the
__raw variants there doesn't pose any problem either.

If and when barriers need to be added in the future, these will need to
be explicitly written out, but this is so far not a concern for any of
the affected CPUs in question.

This fixes up the link error introduced by the ARM tree via its barrier
refactoring:

	arch/arm/boot/compressed/mmcif-sh7372.o: In function `mmcif_loader':
	mmcif-sh7372.c:(.text+0x9e8): undefined reference to `outer_cache

Following the change in:

	http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=6275/1

Reported-by: Simon Horman 
Signed-off-by: Paul Mundt

Merge branch 'sh/sdio' into sh-latest

2011-01-12T05:37:42+00:00

Merge branches 'sh/memchunk' and 'common/mmcif' into sh-latest

2011-01-11T04:05:15+00:00

mmc: dw_mmc: Add Synopsys DesignWare mmc host driver.

2011-01-09T04:52:24+00:00

This adds the mmc host driver for the Synopsys DesignWare mmc
host controller, found in a number of embedded SoC designs.

Signed-off-by: Will Newton 
Reviewed-by: Matt Fleming 
Reviewed-by: Chris Ball 
Signed-off-by: Chris Ball

mmc: sdhci: add quirk for max len ADMA descriptors

2011-01-09T04:52:23+00:00

Some controllers misparse segment length 0 as being 0, not 65536. Add
a quirk to deal with it.

Signed-off-by: Olof Johansson 
Reviewed-by: Chris Ball 
Signed-off-by: Chris Ball

mmc: Test bus-width for old MMC devices

2011-01-09T04:52:09+00:00

Some old MMC devices fail with the 4/8 bits the driver tries to use
exclusively.  This patch adds a test for the given bus setup and falls
back to the lower bit mode (until 1-bit mode) when the test fails.

[Major rework and refactoring by tiwai]
[Quirk addition and many fixes by prakity]

Signed-off-by: Aries Lee 
Signed-off-by: Takashi Iwai 
Signed-off-by: Philip Rakity 
Tested-by: Philip Rakity 
Signed-off-by: Chris Ball

mmc: sdio: don't reinitialize nonremovable powered-resumed cards

2011-01-09T03:48:17+00:00

Upon system resume, SDIO core must reinitialize cards that were
powered off during suspend.

If the card had its power kept during suspend (and thus it is
'powered-resumed'), SDIO core performs only a limited reinitializing,
mainly needed to make sure that the card wasn't removed/replaced.

If a __nonremovable__ card is powered-resumed, we can safely skip the
reinitializing phase.

Note: 9b966aa (mmc: sdio: fully reconfigure oldcard on resume) removed
the bus width reconfiguration since mmc_sdio_init_card already does it.
It is brought back now in case mmc_sdio_init_card is skipped.

Signed-off-by: Ohad Ben-Cohen 
Signed-off-by: Chris Ball

mmc: Add support for JMicron 388 SD/MMC controller

2011-01-09T03:48:04+00:00

JMicron 388 SD/MMC combo controller supports the 1.8V low-voltage for
SD, but MMC doesn't work with the low-voltage, resulting in an error
at probing.

This patch adds the support for multiple voltage mask per device type,
so that SD works with 1.8V while MMC forces 3.3V.  Here new ocr_avail_*
fields for each device are introduced, so that the actual OCR mask is
switched dynamically.

Also, the restriction of low-voltage in core/sd.c is removed when the
bit is allowed explicitly via ocr_avail_sd mask.

This patch was rewritten from scratch based on Aries' original code.

Signed-off-by: Aries Lee 
Signed-off-by: Takashi Iwai 
Reviewed-by: Chris Ball 
Signed-off-by: Chris Ball

mmc: Aggressive clock gating framework

2011-01-09T03:48:03+00:00

This patch modifies the MMC core code to optionally call the set_ios()
operation on the driver with the clock frequency set to 0 (gate) after
a grace period of at least 8 MCLK cycles, then restore it (ungate)
before any new request. This gives the driver the option to shut down
the MCI clock to the MMC/SD card when the clock frequency is 0, i.e.
the core has stated that the MCI clock does not need to be generated.

It is inspired by existing clock gating code found in the OMAP and
Atmel drivers and brings this up to the host abstraction.  Gating is
performed before and after any MMC request.

This patchset implements this for the MMCI/PL180 MMC/SD host controller,
but it should be simple to switch OMAP/Atmel over to using this instead.

mmc_set_{gated,ungated}() add variable protection to the state holders
for the clock gating code.  This is particularly important when ordinary
.set_ios() calls would race with the .set_ios() call resulting from a
delayed gate operation.

Signed-off-by: Linus Walleij 
Reviewed-by: Chris Ball 
Tested-by: Chris Ball 
Signed-off-by: Chris Ball

Merge branch 'rmobile/urgent' into rmobile-latest

2010-12-20T15:40:51+00:00

Conflicts:
	arch/arm/mach-shmobile/include/mach/entry-macro.S

Signed-off-by: Paul Mundt