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path: root/drivers/mmc
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2007-05-01mmc: Move "present" markingPierre Ossman2-2/+2
The "present" state indicates that the card is a registered device, so it is more clear to put it together with the actual registration. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01mmc: Move OCR bit definesPierre Ossman9-9/+0
All host drivers were #include:ing mmc/protocol.h just to get access to the OCR bit defines. Move these to host.h instead. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01mmc: add type field to cardsPierre Ossman1-1/+2
Split out the type of card into its own field as it hardly qualifies as a state. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01mmc: MMC sector based cardsPierre Ossman2-8/+36
Support for MMC 4.2 sector based cards. This tweaks the init a bit and reads a new field out of the EXT_CSD. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01mmc: use right timing mode constantPierre Ossman1-1/+1
Fix copy-n-paste error. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01tifm: layout fixes, small changes to comments and printfsAlex Dubov1-19/+30
Cosmetic changes to the code. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01tifm_sd: implement software scatter-gatherAlex Dubov1-147/+296
It was found that delays associated with issue and completion of the commands severely limit performance of the new, fast SD cards. To alleviate this issue scatter-gather emulation in software is implemented for both dma and pio transfer modes. Non-block aligned and high memory sg entries are accounted for. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01tifm_sd: fix resume handlerAlex Dubov1-16/+19
Resume should not explicitly check for media type. Instead, it may relay on success of socket initialization. Small changes are introduced to tifm_sd_initialize to make it more robust. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01tifm_sd: replace command completion state machine with full checkingAlex Dubov1-122/+137
State machine used to to track mmc command state was found to be fragile and unreliable, making many cards unusable. The safer solution is to perform all needed checks at every card event. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01tifm_sd: merge dma and pio request processing pathsAlex Dubov1-130/+68
To allow for switching of trasfer mode (dma/pio) on a per-request basis, pio and dma request issue and completion function are now merged. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01tifm_sd: separate command flags, socket flags and register bit masksAlex Dubov1-36/+36
host->flags variable was hosting a collection of bits with different semantics. For clarity, hardware bit masks are now defined as macros, socket flags represented as bit fields and flags (now cmd_flags) only hosts command processing modifiers. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01tifm_sd: remove wait for power off on removeAlex Dubov1-15/+10
This wait was needed because of the mmc layer failure to wait for completion of all outstanding commands before host removal. It should be fixed now in the mmc layer. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01tifm_sd: remove tifm_sd_terminate functionAlex Dubov1-21/+13
tifm_sd_terminate can only lawfully be called on device removal so it can be merged with tifm_sd_remove. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01tifm: simplify bus match and uevent handlersAlex Dubov1-3/+3
Remove code duplicating the kernel functionality and clean up data structures involved in driver matching. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01tifm: hide details of interrupt processing from socket driversAlex Dubov1-15/+28
Instead of passing transformed value of adapter interrupt status to socket drivers, implement two separate callbacks - one for card events and another for dma events. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01wbsd: remove block crc testPierre Ossman2-34/+3
Block completion interrupts occur faster than we can process them, so just ignore them competely. Commit also fixes up some incorrect register defines. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01mmc: enforce correct sg listPierre Ossman1-0/+11
Now that we've fixed our only offender when it comes to strange sg list, add a check so that future users keep the sg list proper with regard to transfer size. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-05-01mmc: cull sg list to match mmc request sizeAlex Dubov5-129/+50
mmc layer may introduce additional (compared to block layer) limits on request size. Culling of the sg list to match adjusted request size simplifies the handling of such cases in the low level driver, allowing it to skip block count checks while processing sg entries. (fixes for wbsd and sdhci by Pierre Ossman) Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-04-27uevent: use add_uevent_var() instead of open coding itEric Rannaud1-16/+11
Make use of add_uevent_var() instead of (often incorrectly) open coding it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Eric Rannaud <eric.rannaud@gmail.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-04-21[ARM] 4304/1: removes the unnecessary bit number from CKENnn_XXXXEric Miao1-2/+2
This patch removes the unnecessary bit number from CKENnn_XXXX definitions for PXA, so that CKEN0_PWM0 --> CKEN_PWM0 CKEN1_PWM1 --> CKEN_PWM1 ... CKEN24_CAMERA --> CKEN_CAMERA The reasons for the change of these defitions are: 1. they do not scale - they are currently valid for pxa2xx, but definitely not valid for pxa3xx, e.g., pxa3xx has bit 3 for camera instead of bit 24 2. they are unnecessary - the peripheral name within the definition has already announced its usage, we don't need those bit numbers to know which peripheral we are going to enable/disable clock for 3. they are inconvenient - think about this: a driver programmer for pxa has to remember which bit in the CKEN register to turn on/off Another change in the patch is to make the definitions equal to its clock bit index, so that #define CKEN_CAMERA (24) instead of #define CKEN_CAMERA (1 << 24) this change, however, will add a run-time bit shift operation in pxa_set_cken(), but the benefit of this change is that it scales when bit index exceeds 32, e.g., pxa3xx has two registers CKENA and CKENB, totally 64 bit for this, suppose CAMERA clock enabling bit is CKENB:10, one can simply define CKEN_CAMERA to be (32 + 10) and so that pxa_set_cken() need minimum change to adapt to that. Signed-off-by: eric miao <eric.y.miao@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-03-12[ARM] 4256/1: i.MX/MX1 SDHC fix/workaround of SD card recognition problemsPavel Pisa1-1/+12
The SDHC controllers cannot process shorter transfers. They has to be handled as longer ones, but it such case CRC error is evaluated. There was a case in the code still, where this error is not ignored as it should to be process these transfers. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-03-06sdhci: release irq during suspendPierre Ossman1-0/+12
Release the device's irq during sleep, as all well-behaved drivers should. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-03-06sdhci: make isr tolerant of read errorsMark Lord1-1/+1
The interrupt is shared with another device, which resumes earlier than the sdhci controller, and generates an interrupt. The sdhci interrupt handler runs, sees 0xffffffff in its own device's interrupt status, and tries to handle it.. The reason for the 0xffffffff is that the device is still suspended, and *all* regs are reading back 0xffffffff. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-03-06mmc: require explicit support for high-speedPierre Ossman2-50/+58
The new high-speed timings are similar to each other and the old system, but not identical. And although things "just work" most of the time, sometimes it does not. So we need to start marking which hosts are known to fully comply with the new timings. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-19Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds1-23/+23
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (117 commits) [ARM] 4058/2: iop32x: set ->broken_parity_status on n2100 onboard r8169 ports [ARM] 4140/1: AACI stability add ac97 timeout and retries [ARM] 4139/1: AACI record support [ARM] 4138/1: AACI: multiple channel support for IRQ handling [ARM] 4211/1: Provide a defconfig for ns9xxx [ARM] 4210/1: base for new machine type "NetSilicon NS9360" [ARM] 4222/1: S3C2443: Remove reference to missing S3C2443_PM [ARM] 4221/1: S3C2443: DMA support [ARM] 4220/1: S3C24XX: DMA system initialised from sysdev [ARM] 4219/1: S3C2443: DMA source definitions [ARM] 4218/1: S3C2412: fix CONFIG_CPU_S3C2412_ONLY wrt to S3C2443 [ARM] 4217/1: S3C24XX: remove the dma channel show at startup [ARM] 4090/2: avoid clash between PXA and SA1111 defines [ARM] 4216/1: add .gitignore entries for ARM specific files [ARM] 4214/2: S3C2410: Add Armzone QT2410 [ARM] 4215/1: s3c2410 usb device: per-platform vbus_draw [ARM] 4213/1: S3C2410 - Update definition of ADCTSC_XY_PST [ARM] 4098/1: ARM: rtc_lock only used with rtc_cmos [ARM] 4137/1: Add kexec support [ARM] 4201/1: SMP barriers pair needed for the secondary boot process ... Fix up conflict due to typedef removal in sound/arm/aaci.h
2007-02-14[PATCH] remove many unneeded #includes of sched.hTim Schmielau1-1/+0
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-11Merge branch 'for-linus' of ↵Linus Torvalds3-40/+17
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: tifm_sd: treat "status error" as normal command completion mmc: wbsd: Remove stray kunmap_atomic() mmc: sdhci: Stop asking for mail mmc: sdhci: Remove driver version mmc: wbsd: Remove driver version
2007-02-11tifm_sd: treat "status error" as normal command completionAlex Dubov1-7/+4
TI FlasMedia controller attempts to validate command responses and issues a "status error" if response does not matches its perceived (by controller) value. As mmc layer does its own validation we can safely ignore the controller's opinion. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-11mmc: wbsd: Remove stray kunmap_atomic()Pierre Ossman1-1/+0
There was one kunmap_atomic() left over from 4a0ddbd25ad4e03a0a1657f5cb2259c9a35fe9e6 that was causing crashes. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-09[PATCH] TIFM should depend on PCI - TIFM_CORE leads to use of pci primitivesAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09mmc: sdhci: Stop asking for mailPierre Ossman1-24/+11
We get enough error reports without having to ask for it. Remove notices about mailing the development list. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-09mmc: sdhci: Remove driver versionPierre Ossman1-4/+1
The driver version was only really meaningful when it was an out-of-tree driver. Now we can use the version of the kernel. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-09mmc: wbsd: Remove driver versionPierre Ossman1-4/+1
The driver version was only really meaningful when it was an out-of-tree driver. Now we can use the version of the kernel. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-08[ARM] 4151/1: AT91 / AVR32: Move at91_pdc.h to linux/atmel_pdc.hAndrew Victor1-23/+23
The Atmel AT91 and AVR32 processor architectures share many of the same peripherals. The PDC (Peripheral Data Controller) registers are also implemented within in a number of the on-chip peripherals (eg, USART, MMC, SPI, SSC, etc). In a attempt not to duplicate the register definitions in each peripheral, or in each architecture, the at91_pdc.h header in asm-arm/arch-at91 and asm-avr32/arch-at32ap has been replaced with linux/atmel_pdc.h. The definitions have also been renamed from AT91_PDC_* to ATMEL_PDC_*, and the drivers updated accordingly. Original patch from Nicolas Ferre. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-04mmc: tifm: replace kmap with page_addressPierre Ossman1-11/+4
Since we actively avoid highmem, calling kmap_atomic() instead of page_address() is effectively only obfuscation. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: sdhci: fix voltage ocrPierre Ossman1-2/+2
Some bad if-clauses caused the driver to just report the highest supported voltage, not all. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: sdhci: replace kmap with page_addressPierre Ossman2-19/+6
Since we actively avoid highmem, calling kmap_atomic() instead of page_address() is effectively only obfuscation. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: wbsd: replace kmap with page_addressPierre Ossman2-31/+10
Since we actively avoid highmem, calling kmap_atomic() instead of page_address() is effectively only obfuscation. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: handle pci_enable_device() return value in sdhciPierre Ossman1-1/+3
Make sure we report back any errors from pci_enable_device(). Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: Proper unclaim in mmc_blockPierre Ossman1-1/+2
Make sure we release the claim on the host even on failure. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: Graceful fallback for fancy featuresPierre Ossman1-9/+7
MMC high-speed, wide bus support and SD high-speed are functions that aren't critical for correct operation of the card. As such, they shouldn't mark the card as bad or dead when there is a failure activating these features. This is needed in particular on some really stupid hardware (e.g. Winbond's) where not all data transfer commands are supported. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: Handle wbsd's stupid command listPierre Ossman1-1/+40
The wbsd hardware is so incredibly brain damaged that it has an internal list of commands that result in data transfers. The result being that commands that aren't on this list aren't supported. Instead of locking up, waiting for a data interrupt that will never come, we try to fail a bit more gracefully. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: Allow host drivers to specify max block countPierre Ossman12-21/+53
Many controllers have an upper limit on the number of blocks that can be transferred in one request. Allow the host drivers to specify this and make sure we avoid hitting this limit. Also change the max_sectors field to avoid confusion. This makes it map less directly to the block layer limits, but as they didn't apply directly on MMC cards anyway, this isn't a great loss. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04mmc: Allow host drivers to specify a max block sizePierre Ossman11-12/+43
Most controllers have an upper limit on the block size. Allow the host drivers to specify this and make sure we avoid hitting this limit. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04tifm_sd: add suspend and resume functionalityAlex Dubov1-1/+38
Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04Remove unused return value from signal_irq callbackAlex Dubov1-3/+2
Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04tifm_sd: prettifyAlex Dubov1-48/+50
This patch introduces no semantic changes - it is here for estetic purposes. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04tifm_sd: restructure initialization, removal and command handlingAlex Dubov1-95/+110
In order to support correct suspend and resume several changes were needed: 1. Switch from work_struct to tasklet for command handling. When device suspend is called workqueues are already frozen and can not be used. 2. Separate host initialization code from driver's probe and don't rely on interrupts for host initialization. This, in turn, addresses two problems: a) Resume needs to re-initialize the host, but can not assume that device interrupts were already re-armed. b) Previously, probe will return successfully before really knowing the state of the host, as host interrupts were not armed in time. Now it uses polling to determine the real host state before returning. 3. Separate termination code from driver's remove. Termination may be caused by resume, if media changed type or became unavailable during suspend. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04tifm_sd: fix hardware timeout setupAlex Dubov1-8/+7
The register access order when setting hardware timeout was incorrect and causing problems (wrong timeout intervals). This is now fixed. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-02-04tifm_sd: Switch software timeout handler from work_struct to timerAlex Dubov1-21/+13
Two changes are introduced to software timeout handler in order to simplify its management: 1. The implementation is switched from work_struct to timer 2. Previously, software timeout was rearmed with each interrupt. Now, current request must complete entirely within timeout interval. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
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