Граф коммитов

48 Коммитов

Автор SHA1 Сообщение Дата
Lars-Peter Clausen 61bfbdb856 MMC: Add support for the controller on JZ4740 SoCs.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Matt Fleming <matt@console-pimps.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: linux-mmc@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1463/
Patchwork: https://patchwork.linux-mips.org/patch/1523/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05 13:26:18 +01:00
Daniel Walker f3d56144c8 mmc: msm: fix compile error on MSM7x30
MSM7x30 isn't supported in this driver yet. If ones tried to compile it in
with MSM7x30 configure you get,

linux-2.6/drivers/mmc/host/msm_sdcc.c: In function 'msmsdcc_fifo_addr':
linux-2.6/drivers/mmc/host/msm_sdcc.c:165: error: 'MSM_SDC1_PHYS' undeclared (first use in this function)
linux-2.6/drivers/mmc/host/msm_sdcc.c:165: error: (Each undeclared identifier is reported only once
linux-2.6/drivers/mmc/host/msm_sdcc.c:165: error: for each function it appears in.)
linux-2.6/drivers/mmc/host/msm_sdcc.c:167: error: 'MSM_SDC2_PHYS' undeclared (first use in this function)
linux-2.6/drivers/mmc/host/msm_sdcc.c:169: error: 'MSM_SDC3_PHYS' undeclared (first use in this function)
linux-2.6/drivers/mmc/host/msm_sdcc.c:171: error: 'MSM_SDC4_PHYS' undeclared (first use in this function)

So we add a Kconfig check to prevent this.

Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
2010-06-09 08:51:31 -07:00
Viresh KUMAR c63b3cba4f sdhci-spear: ST SPEAr based SDHCI controller glue
Add a glue layer to support the sdhci driver on the ST SPEAr platform.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Cc: <shiraz.hashim@st.com>
Cc: Linus Walleij <linus.ml.walleij@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:40 -07:00
Yusuke Goda fdc50a9444 mmc: add support MMCIF for SuperH
MMCIF is the MMC Host Interface in SuperH.

Signed-off-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27 09:12:39 -07:00
Magnus Damm 3d8ca8c0b9 mfd/mmc: SDHI Kconfig update
Enable the sh_mobile_sdhi mfd driver on SH-Mobile ARM
processors. While at it, make CONFIG_TMIO_MMC depend on
CONFIG_MFD_SH_MOBILE_SDHI.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2010-03-07 22:17:32 +01:00
Mike Frysinger 05dabcc4a5 mmc: bfin_sdh: drop redundant MMC depend string
The host/Kconfig file is only included when MMC is selected.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06 11:26:36 -08:00
Nicolas Ferre 09591dd318 mmc: Atmel host kconfig cleanup for everyone else
This prevents those without an Atmel chip having a line in kernel
configuration which says "Atmel SD/MMC Driver" without any option.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06 11:26:36 -08:00
Maxim Levitsky 03cd8f7ebe ricoh_mmc: port from driver to pci quirk
This patch solves nasty problem original driver has.

Original goal of the ricoh_mmc was to disable this device because then,
mmc cards can be read using standard SDHCI controller, thus avoiding
writing of yet another driver.

However, the act of disablement, makes other pci functions that belong to
this controller (xD and memstick) shift up one level, thus pci core has
now wrong idea about these devices.

To fix this issue, this patch moves the driver into the pci quirk section,
thus it is executes before the pci is enumerated, and therefore solving
that issue, also same sequence of commands is performed on resume for same
reasons.

Also regardless of the above, this way is cleaner.  You still need to set
CONFIG_MMC_RICOH_MMC to enable this quirk

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Acked-by: Philip Langdale <philipl@overt.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-06 11:26:36 -08:00
Albert Herranz 1144ab5d4b sdhci-of: add support for the wii sdhci controller
Add support for the Secure Digital Host Controller Interface found on the
"Hollywood" chipset of the Nintendo Wii video game console.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-17 15:45:32 -08:00
Albert Herranz 7657c3a7d4 sdhci-of: reorganize driver to support additional hardware
This patch breaks down sdhci-of into a core portion and a eSDHC portion,
clearing the path to easily support additional hardware using the same OF
driver.

Signed-off-by: Albert Herranz <albert_herranz@yahoo.es>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-17 15:45:31 -08:00
Cliff Cai eb962d5bb7 mmc: Blackfin SD Host Controller Driver
Add SD host driver for Blackfin BF54x and BF51x.

[akpm@linux-foundation.org: fix layout, c99 warning]
Signed-off-by: Cliff Cai <cliffcai.sh@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:35 -08:00
Vipin Bhandari b4cff4549b DaVinci: MMC: MMC/SD controller driver for DaVinci family
Add support for MMC/SD controller driver for all DaVinci family SoC.  This
patch supports davinci family SoC's DM6446, DM355, DM365 and
DA830/OMAPL137.

The patch has been tested on DM355 EVM.

The MMCSD controller specifications for DM355 can be found at
http://focus.ti.com/general/docs/litabsmultiplefilelist.tsp?literatureNumber=spruee2c

Signed-off-by: Vipin Bhandari <vipin.bhandari@ti.com>
Signed-off-by: Purshotam Kumar <purushotam@ti.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:34 -08:00
Magnus Damm 6d522b0598 mmc: Add SuperH to the tmio-mmc Kconfig
Add SUPERH to the Kconfig dependencies for tmio_mmc.

This change allows us to drive the SDHI hardware blocks
found in SuperH Mobile with tmio_mmc.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-26 10:37:04 +09:00
Ben Dooks 5a2c4fe04d s3cmci: make SDIO IRQ hardware IRQ support build-time configurable
We have found a couple of boards where the SDIO IRQ hardware support has
failed to work properly, and thus we should make it configurable whether
or not to be included in the driver.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-01 16:11:15 -07:00
Ben Dooks 26f14947db s3cmci: Kconfig selection for PIO/DMA/Both
Add a selection for the data transfer mode of the s3cmci driver, allowing
for either a configuration or rumtime selection of the use of the DMA or
PIO transfer code.

The PIO only mode is 476 bytes smaller than the driver with both methods
compiled in.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-10-01 16:11:15 -07:00
kishore kadiyala 82cf818d54 omap4: mmc driver support on OMAP4
Add basic support for all 5 MMC controllers on OMAP4.

This patch doesn't include mmc-regulator support

Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Acked-by: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Cc: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-23 07:39:37 -07:00
Rob Emanuele 04d699c364 atmel-mci: unified Atmel MCI drivers (AVR32 & AT91)
Unification of the atmel-mci driver to support the AT91 processors MCI
interface.  The atmel-mci driver currently supports the AVR32 and this
patch adds AT91 support.

Add read/write proof selection switch dependent on chip availability of
this feature.

To use this new driver on a at91 the platform driver for your board needs
to be updated.

[nicolas.ferre@atmel.com indent, Kconfig comment and one printk modification]
Signed-off-by: Rob Emanuele <rob@emanuele.us>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-23 07:39:37 -07:00
San Mehat 9d2bd7383c mmc: msm_sdccc: driver for HTC Dream
MMC Driver for HTC Dream.  I picked the code up from Google git trees,
removed stuff not strictly necessary, and did a few cleanups.  It still
works :-).

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Cc: Brian Swetland <swetland@google.com>
Cc: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: Joe Perches <joe@perches.com>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: Ian Molton <ian@mnementh.co.uk>
Cc: "Roberto A. Foglietta" <roberto.foglietta@gmail.com>
Cc: Philip Langdale <philipl@overt.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-23 07:39:32 -07:00
Harald Welte f0bf7f61b8 mmc: Add new via-sdmmc host controller driver
This adds the via-sdmmc driver for the SD/MMC-controller of VIA,
which is found in a number of recent integrated VIA chipset
products.

Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
2009-06-21 21:00:59 +02:00
Ben Dooks 0d1bb41ad4 sdhci-s3c: Samsung S3C based SDHCI controller glue
Add support for the 'HSMMC' block(s) in the Samsung SoC
line. These are compatible with the SDHCI driver so add
the necessary setup and driver binding for the platform
devices.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
2009-06-21 21:00:57 +02:00
Linus Torvalds 2625b10d8c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (25 commits)
  atmel-mci: add MCI2 register definitions
  atmel-mci: Integrate AT91 specific definition in header file
  tmio_mmc: allow compilation for ASIC3
  mmc_block: do not DMA to stack
  sdhci: Print ADMA status and pointer on debug
  tmio_mmc: fix clock setup
  tmio_mmc: map SD control registers after enabling the MFD cell
  tmio_mmc: correct probe return value for num_resources != 3
  tmio_mmc: don't use set_irq_type
  tmio_mmc: add bus_shift support
  MFD,mmc: tmio_mmc: make HCLK configurable
  mmc_spi: don't use EINVAL for possible transmission errors
  cb710: more cleanup for the DEBUG case.
  sdhci: platform driver for SDHCI
  mxcmmc: remove frequency workaround
  cb710: handle DEBUG define in Makefile
  cb710: add missing parenthesis
  cb710: fix printk format string
  mmc: Driver for CB710/720 memory card reader (MMC part)
  pxamci: add regulator support.
  ...
2009-06-14 13:46:57 -07:00
Philipp Zabel e6f2c7adc1 tmio_mmc: allow compilation for ASIC3
Now tmio_mmc is able to drive the MMC/SD cell in ASIC3.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Acked-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
2009-06-13 22:43:01 +02:00
Richard Röjfors a3456a2da1 sdhci: platform driver for SDHCI
Added a platform driver which uses the SDHCI core.

Signed-off-by: Richard Röjfors <richard.rojfors.ext@mocean-labs.com>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
2009-06-13 22:42:59 +02:00
Michał Mirosław 5f5bac8272 mmc: Driver for CB710/720 memory card reader (MMC part)
The code is divided in two parts. There is a virtual 'bus' driver
that handles PCI device and registers three new devices one per card
reader type. The other driver handles SD/MMC part of the reader.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>
2009-06-13 22:42:58 +02:00
Sascha Hauer 8c8fdbc9bd [ARM] Remove arch-imx from build system
arch-imx is superseeded by the MXC architecture support.
This patch removes arch-imx from the build system.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-05-07 16:15:48 +02:00
Linus Torvalds 0a053e8c71 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (42 commits)
  atmel-mci: fix sdc_reg typo
  tmio_mmc: add maintainer
  mmc: Add OpenFirmware bindings for SDHCI driver
  sdhci: Add quirk for forcing maximum block size to 2048 bytes
  sdhci: Add quirk for controllers that need IRQ re-init after reset
  sdhci: Add quirk for controllers that need small delays for PIO
  sdhci: Add set_clock callback and a quirk for nonstandard clocks
  sdhci: Add get_{max,timeout}_clock callbacks
  sdhci: Add support for hosts reporting inverted write-protect state
  sdhci: Add support for card-detection polling
  sdhci: Enable only relevant (DMA/PIO) interrupts during transfers
  sdhci: Split card-detection IRQs management from sdhci_init()
  sdhci: Add support for bus-specific IO memory accessors
  mmc_spi: adjust for delayed data token response
  omap_hsmmc: Wait for SDBP
  omap_hsmmc: Fix MMC3 dma
  omap_hsmmc: Disable SDBP at suspend
  omap_hsmmc: Do not prefix slot name
  omap_hsmmc: Allow cover switch to cause rescan
  omap_hsmmc: Add 8-bit bus width mode support
  ...
2009-04-05 10:18:21 -07:00
Matt LaPlante 692105b8ac trivial: fix typos/grammar errors in Kconfig texts
Signed-off-by: Matt LaPlante <kernel1@cyberdogtech.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-03-30 15:22:01 +02:00
Anton Vorontsov 3085e9c1b2 mmc: Add OpenFirmware bindings for SDHCI driver
This patch adds a new driver: sdhci-of. The driver is similar to
the sdhci-pci, it contains common probe code, and controller-specific
ops and quirks.

So far there are only Freescale eSDHC ops and quirks.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2009-03-24 21:30:11 +01:00
Anton Vorontsov 4e4141a526 sdhci: Add support for bus-specific IO memory accessors
Currently the SDHCI driver works with PCI accessors (write{l,b,w} and
read{l,b,w}).

With this patch drivers may change memory accessors, so that we can
support hosts with "weird" IO memory access requirments.

For example, in "FSL eSDHC" SDHCI hardware all registers are 32 bit
width, with big-endian addressing. That is, readb(0x2f) should turn
into readb(0x2c), and readw(0x2c) should be translated to
le16_to_cpu(readw(0x2e)).

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2009-03-24 21:30:07 +01:00
Maen Suleiman 236caa7cc3 mmc: SDIO driver for Marvell SoCs
This supports MMC/SD/SDIO currently found on the Kirkwood 88F6281 and
88F6192 SoC controllers.

Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2009-03-24 21:30:03 +01:00
Sascha Hauer d96be879ff mmc: Add a MX2/MX3 specific SDHC driver
This patch adds a MX2/MX3 specific SDHC driver. The hardware is basically
the same as in the MX1, but unlike the MX1 controller the MX2
controller just works as expected. Since the MX1 driver has more
workarounds for bugs than anything else I had no success with supporting
MX1 and MX2 in a sane way in one driver.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2009-02-02 20:57:05 +01:00
Madhusudhan Chikkature a45c6cb816 [ARM] 5369/1: omap mmc: Add new omap hsmmc controller for 2430 and 34xx, v3
Add omap hsmmc controller for 2430 and 34xx.

Note that this controller has different registers compared to
the earlier omap MMC controller, so sharing code currently is
not possible.

Various updates and fixes from linux-omap list have been
merged into this patch.

Signed-off-by: Madhusudhan Chikkature<madhu.cr@ti.com>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-01-24 11:41:21 +00:00
Pierre Ossman 6ee6c6adf1 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/atmel-mci-2.6.28
Conflicts:
	drivers/mmc/host/atmel-mci.c
2008-10-12 11:08:46 +02:00
Pierre Ossman 57105737f6 mmc: explicitly mention SDIO support in Kconfig
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-10-12 11:04:36 +02:00
Pierre Ossman 1ea4f444f3 mmc: remove redundant "depends on"
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-10-12 11:04:35 +02:00
Haavard Skinnemoen 65e8b083fc atmel-mci: Add experimental DMA support
This adds support for DMA transfers through the generic DMA engine
framework with the DMA slave extensions.

The driver has been tested using mmc-block and ext3fs on several SD,
SDHC and MMC+ cards. Reads and writes work fine, with read transfer
rates up to 7.5 MiB/s on fast cards with debugging disabled.

Unfortunately, the driver has been known to lock up from time to time
with DMA enabled, so DMA support is currently optional and marked
EXPERIMENTAL. However, I didn't see any problems while testing 13
different cards (MMC, SD and SDHC of different brands and sizes), so I
suspect the "Initialize BLKR before sending data transfer command" fix
that was posted earlier fixed this as well.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
2008-10-05 20:39:21 +02:00
Samuel Ortiz 1c2c30acc5 mfd: have TMIO drivers and subdevices depend on ARM
The TMIO chips are only found (and thus tested) on ARM machines.
Moreover, we don't want the TMIO cells to be built if one of the TMIO
driver is not selected (which indirectly make the TMIO cells drivers
depend on ARM as well).

Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-08-10 23:30:34 +02:00
Ian Molton 4a48998fa1 mfd: TMIO MMC driver
This patch adds support for the MMC subdevice 'cell' commonly found in
TMIO based MFDs.

Signed-off-by: Ian Molton <spyro@f2s.com>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
2008-08-10 23:30:16 +02:00
Sascha Sommer 6a36913a33 mmc: host driver for Ricoh Bay1Controllers
Signed-off-by: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15 15:47:04 +02:00
Haavard Skinnemoen 7d2be0749a atmel-mci: Driver for Atmel on-chip MMC controllers
This is a driver for the MMC controller on the AP7000 chips from
Atmel. It should in theory work on AT91 systems too with some
tweaking, but since the DMA interface is quite different, it's not
entirely clear if it's worth merging this with the at91_mci driver.

This driver has been around for a while in BSPs and kernel sources
provided by Atmel, but this particular version uses the generic DMA
Engine framework (with the slave extensions) instead of an
avr32-only DMA controller framework.

This driver can also use PIO transfers when no DMA channels are
available, and for transfers where using DMA may be difficult or
impractical for some reason (e.g. the DMA setup overhead is usually
not worth it for very short transfers, and badly aligned buffers or
lengths are difficult to handle.)

Currently, the driver only support PIO transfers. DMA support has been
split out to a separate patch to hopefully make it easier to review.

The driver has been tested using mmc-block and ext3fs on several SD,
SDHC and MMC+ cards. Reads and writes work fine, with read transfer
rates up to 3.5 MiB/s on fast cards with debugging disabled.

The driver has also been tested using the mmc_test module on the same
cards. All tests except 7, 9, 15 and 17 succeed. The first two are
unsupported by all the cards I have, so I don't know if the driver
handles this correctly. The last two fail because the hardware flags a
Data CRC Error instead of a Data Timeout error. I'm not sure how to deal
with that.

Documentation for this controller can be found in many data sheets from
Atmel, including the AT32AP7000 data sheet which can be found here:

http://www.atmel.com/dyn/products/datasheets.asp?family_id=682

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15 14:14:49 +02:00
Thomas Kleffel be518018c6 MMC: S3C24XX MMC/SD driver.
This is the latest S3C MMC/SD driver by Thomas Kleffel
with cleanups as suggested by AKPM done by Ben Dooks.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Thomas Kleffel <tk@maintech.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15 14:14:46 +02:00
Pierre Ossman b8c86fc5d8 sdhci: move pci stuff to separate module
The SDHCI interface is not PCI specific, yet the Linux driver was
intimitely connected to the PCI bus. This patch properly separates
the PCI specific portion from the bus independent code.

This patch is based on work by Ben Dooks but he did not have time
to complete it.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15 14:14:39 +02:00
Al Viro 46cb69ccdf missing dependencies on HAS_DMA
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-21 16:55:59 -07:00
Pierre Ossman 34671dc2e6 mmc: remove sdhci and mmc_spi experimental markers
Both of these drivers work well (although some hardware still has
its problems) and are not in the "alpha" quality that EXPERIMENTAL
suggests.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-02-08 09:02:46 +01:00
Philip Langdale 5ae70296c8 mmc: Disabler for Ricoh MMC controller
Thanks to Matt Domsch and Rezwanul Kabir at Dell, we know how to disable the
MMC controller on the multi-function Ricoh R5C832. The MMC controller needs
to be disabled or it will steal MMC cards from the SD controller where they
would otherwise be supported by the Linux SDHCI driver.

Signed-off-by: Philipl Langdale <philipl@overt.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-10-03 18:40:05 +02:00
David Brownell 15a0580ced mmc_spi host driver
This is the latest version of the MMC-over-SPI support.  It works
on 2.6.23-rc2 plus git-mmc (from rc1-mm2), along with the preceding
patches which teach the rest of the MMC stack about SPI.

The main issue of note is that sometimes cards need to be power cycled
to recover after certain faults.  Also, it may sometimes be necessary
to disable CRCs.  ("modprobe mmc_core use_spi_crc=n")

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: mikael.starvik@axis.com,
Cc: Hans-Peter Nilsson <hp@axis.com>
Cc: Jan Nikitenko <jan.nikitenko@gmail.com>
Cc: Mike Lavender <mike@steroidmicros.com>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-09-23 22:17:27 +02:00
Jan Engelhardt 790864dcc2 mmc: Use menuconfig objects
Change Kconfig objects from "menu, config" into "menuconfig" so
that the user can disable the whole feature without having to
enter the menu first.

Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-08 22:41:55 +02:00
Pierre Ossman 1c6a0718f0 mmc: Move host and card drivers to subdirs
Clean up the drivers/mmc directory by moving card and host drivers
into subdirectories.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01 13:04:17 +02:00