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path: root/drivers/mmc
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2008-07-23sdhci: highmem capable PIO routinesPierre Ossman2-95/+75
Improve the PIO handling so that it can service highmem pages. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-23mmc_test: print message when attaching to cardPierre Ossman1-0/+2
Make it a bit more obvious that the card has been claimed by the mmc_test driver so that people don't have to wonder why their block device never shows up. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-23mmc_block: bounce buffer highmem supportPierre Ossman1-66/+31
Support highmem pages in the bounce buffer code by using the sg_copy_from/to_buffer() functions. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-23sdhci: fix bad warning from commit c8b3e02Pierre Ossman1-1/+1
Commit c8b3e02 renamed a variable, but missed one reference to it inside a WARN_ON, causing it to incorrectly trigger. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-23sdhci: add warnings for bad buffers in ADMA pathPierre Ossman1-0/+2
The ADMA code path assumes that the 3 byte alignment fix doesn't cross a page boundary. I'm not convinced this is worth supporting, but at least print a warning in the off chance we'll actually see such a request. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-23mmc_test: test oversized sg listsPierre Ossman1-3/+82
Add tests that make sure the driver properly checks the blocks and blksz fields and doesn't assume the sg list has a size that perfectly matches the current request. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-23mmc_test: highmem testsPierre Ossman1-1/+137
Add a couple of tests to make sure the host driver handles highmem memory pages properly. Unfortunately there is no way to guarantee an allocation below 4 GB in i386, so it might give you addresses that are out of reach for the hardware (OTOH, so will any other highmem allocation in the kernel). Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-23s3cmci: ensure host stopped on machine shutdownBen Dooks1-4/+16
Ensure that the s3cmci host controller is turned off when the machine is shutdown, otherwise we end up leaving the card powered and processing insertion and removal events after the system prints "System halted." Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-23au1xmmc: suspend/resume implementationManuel Lauss1-12/+42
Basic suspend/resume support: disable peripheral on suspend and reinit on resume. Tested on Au1200. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-23s3cmci: fixes for section mismatch warningsBen Dooks1-15/+15
Fix the naming of various functions in the s3cmc driver to stop triggering section mismatch warnings. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-23pxamci: trivial fix of DMA alignment register bit clearingKarl Beldan1-1/+1
Signed-off-by: Karl Beldan <karl.beldan@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-16Merge branch 'for-linus' of ↵Linus Torvalds28-1273/+5889
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: (68 commits) sdio_uart: Fix SDIO break control to now return success or an error mmc: host driver for Ricoh Bay1Controllers sdio: sdio_io.c Fix sparse warnings sdio: fix the use of hard coded timeout value. mmc: OLPC: update vdd/powerup quirk comment mmc: fix spares errors of sdhci.c mmc: remove multiwrite capability wbsd: fix bad dma_addr_t conversion atmel-mci: Driver for Atmel on-chip MMC controllers mmc: fix sdio_io sparse errors mmc: wbsd.c fix shadowing of 'dma' variable MMC: S3C24XX: Refuse incorrectly aligned transfers MMC: S3C24XX: Add maintainer entry MMC: S3C24XX: Update error debugging. MMC: S3C24XX: Add media presence test to request handling. MMC: S3C24XX: Fix use of msecs where jiffies are needed MMC: S3C24XX: Add MODULE_ALIAS() entries for the platform devices MMC: S3C24XX: Fix s3c2410_dma_request() return code check. MMC: S3C24XX: Allow card-detect on non-IRQ capable pin MMC: S3C24XX: Ensure host->mrq->data is valid ... Manually fixed up bogus executable bits on drivers/mmc/core/sdio_io.c and include/linux/mmc/sdio_func.h when merging.
2008-07-15sdio_uart: Fix SDIO break control to now return success or an errorDavid Howells1-3/+6
This is a consequence of patch 9ea761bfef52c116fed4715d4043392c2503fe6a. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15mmc: host driver for Ricoh Bay1ControllersSascha Sommer3-0/+587
Signed-off-by: Sascha Sommer <saschasommer@freenet.de> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15sdio: sdio_io.c Fix sparse warningsTomas Winkler1-5/+4
Unfold nested macros it creates not readable code and sparse warnings sdio_io.c:190:9: warning: symbol '_min1' shadows an earlier one Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15sdio: fix the use of hard coded timeout value.Benzi Zbit2-5/+7
This adds reading and using of enable_timeout from the CIS Signed-off-by: Benzi Zbit <benzi.zbit@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15mmc: OLPC: update vdd/powerup quirk commentAndres Salomon1-1/+1
This comment update got lost in the great floo^Wmerge. As Pierre pointed out, no one knows what 'CaFe' is. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15mmc: fix spares errors of sdhci.cTomas Winkler1-4/+4
1. sdhci_prepare_data: fix shadowing of count variable u8 count int count -> sg_cnt; 2. sdhci_add_host: assignment of integer to pointer dma_mask = 0 -> dma_mask = NULL; Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15mmc: remove multiwrite capabilityPierre Ossman8-38/+25
Relax requirements on host controllers and only require that they do not report a transfer count than is larger than the actual one (i.e. a lower value is okay). This is how many other parts of the kernel behaves so upper layers should already be prepared to handle that scenario. This gives us a performance boost on MMC cards. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15wbsd: fix bad dma_addr_t conversionPierre Ossman1-2/+2
DMA addresses are not pointers, so don't treat them as such. Avoids compiler warnings when using 64-bit DMA addresses on a 32-bit system. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15atmel-mci: Driver for Atmel on-chip MMC controllersHaavard Skinnemoen4-0/+1083
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>
2008-07-15mmc: fix sdio_io sparse errorsTomas Winkler1-26/+16
This patch fixes sdio_io sparse errors. This fix changes signature of API functions, changing unsigned char -> u8 unsigned short -> u16 unsigned long -> u32 - this was probably a bug in 64 bit platforms Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15mmc: wbsd.c fix shadowing of 'dma' variableTomas Winkler1-15/+15
This patch fix warning :shadowing dma variable and made use of module_param_named instead of module_param Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Acked-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX: Refuse incorrectly aligned transfersBen Dooks1-0/+11
The hardware does not support any multi-block transfers with an block-size that is not 32bit aligned. Also the driver itself does not support single block non-32bit transfers either. Ensure that the s3cmci_setup_data() returns the appropriate error if we encounter this. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX: Update error debugging.Ben Dooks1-2/+10
Add better debugging to show where errors are being generated, as some error codes can come from several different code paths. Also fix the error return path from s3cmci_setup_data() to return the error it returned to the request. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX: Add media presence test to request handling.Ben Dooks1-1/+18
Ensure that we have physical media present before attempting to send a request to a card. This ensures that we do not get flooded by errors from commands that can never be completed timing out. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX: Fix use of msecs where jiffies are neededBen Dooks1-1/+1
mmc_detect_change() takes jiffies, not msecs. Convert the previous value of msecs into jiffies before calling. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX: Add MODULE_ALIAS() entries for the platform devicesBen Dooks1-0/+3
Add MODULE_ALIAS() declerations for all the supported platform devices for this driver. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX: Fix s3c2410_dma_request() return code check.Ben Dooks1-1/+1
The driver should be checking for a negative error code from s3c2410_dma_request(), not non-zero. Newer kernels now return the DMA channel number that was allocated by the request. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX: Allow card-detect on non-IRQ capable pinBen Dooks1-11/+17
Add support to the S3C24XX MMC driver to have the card detect be on a pin that is not IRQ capable. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX: Ensure host->mrq->data is validBen Dooks1-1/+2
Fix a crash if host->mrq->data is NULL on ending a transfer. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX: Add support to invert write protect lineBen Dooks1-2/+9
Support for inverting the sense of the MMC driver's write protect detection line. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX: Add platform data for MMC/SD driverBen Dooks2-3/+42
This patch adds platform data support to the s3mci driver. This allows flexible board-specific configuration of set_power, card detect and read only pins. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: Fix S3C24XX IRQ enable during PIO transfersRoman Moracik1-3/+4
Fix Bug #677 - I/O errors on heavy microSD writes for 2.6.22.x. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15Fix the request finalisation by ensuring the controllerThomas Kleffel1-2/+2
is stopped. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Harald Welte <laforge@openmoko.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: DMA free fix for S3C24XX SD/MMC driverHarald Welte1-0/+1
Bugfix to ensure DMA channel allocated is freed on exit. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX MMC/SD driver write fixesHarald Welte1-3/+13
This patch is a workaround of some S3C2410 MMC chip bug Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15MMC: S3C24XX MMC/SD driver.Thomas Kleffel4-1/+1424
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>
2008-07-15sdhci: graceful handling of bad addressesPierre Ossman1-20/+57
Be a bit more robust and fall back to PIO if someone is feeding us bogus addresses. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15mmc_test: cleanupPierre Ossman1-190/+364
Clean up and reorganise the mmc_test driver so that it (hopefully) is easier to extend with more complex tests. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15mmc_block: wait for card even on failuresPierre Ossman1-4/+9
Many failures are non-permanent, but the card might need some time to finish what it is doing before becoming responsive again. Make sure we wait for it to finish programming before dealing with the error. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15sdhci: scatter-gather (ADMA) supportPierre Ossman3-44/+407
Add support for the scatter-gather DMA mode present on newer controllers. As the mode requires 32-bit alignment, non-aligned chunks are handled by using a bounce buffer. Also add some new quirks to handle controllers that have bugs in the ADMA engine. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15sdhci-pci: don't penalize newer jmicron chipsPierre Ossman1-4/+6
The upcoming JMicron chips will have solved all the currently known bugs, so don't penalize them for older problems. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15mmc_test: only bind to supported cardsPierre Ossman1-1/+4
We can only perform the tests on MMC and SD cards, so avoid binding to any other type. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15sdio: clean up handling of byte mode transfer sizePierre Ossman1-11/+18
Make sure that the maximum size for a byte mode transfer is identical in all places. Also tweak the transfer helper so that a single byte mode transfer is preferred over (possibly multiple) block mode request(s). Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15mmc,sdio: helper function for transfer paddingPierre Ossman2-2/+126
There are a lot of crappy controllers out there that cannot handle all the request sizes that the MMC/SD/SDIO specifications require. In case the card driver can pad the data to overcome the problems, this commit adds a helper that calculates how much that padding should be. A corresponding helper is also added for SDIO, but it can also deal with all the complexities of splitting up a large transfer efficiently. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15au1xmmc: remove custom carddetect poll implementation.Manuel Lauss1-61/+18
The MMC core provides a carddetect poll feature, time to remove the driver's own implementation of it. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15au1xmmc: abort requests early if no card is present.Manuel Lauss1-0/+7
Don't process an MMC request if no card is present. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15au1xmmc: codingstyle tidying.Manuel Lauss2-189/+141
Clean up the codebase, no functional changes. - merge the au1xmmc.h header contents into the driver file, - indentation, spelling and style fixes. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2008-07-15au1xmmc: SDIO IRQ support.Manuel Lauss1-1/+15
Wire up the SD controllers' SDIO IRQ capability. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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