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path: root/drivers/mmc/host/mmci.c
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* ARM: 6980/1: mmci: use StartBitErr to detect bad connectionsLinus Walleij2011-07-06
| | | | | | | | | | | | | | | Stresstesting insert/remove of SD-cards can trigger a StartBitErr. This made the driver to hang in forever waiting for a non ocurring data timeout. This bit and interrupt is documented in the original PL180 TRM, just never implemented until now. Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com> Reviewed-by: Linus Walleij <linus.walleij@stericsson.com> Reviewed-by: Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6894/1: mmci: trigger card detect IRQs on falling and rising edgesLinus Walleij2011-06-06
| | | | | | | | | | | | | | Right now the card detect IRQ for MMCI is requested without any flags which will give some default machine-specified IRQ behaviour. However on the U300 rising+falling edges (such as can be expected from a simple GPIO to generate when inserting/removing a card) need to be requested explicitly. Cc: Rabin Vincent <rabin.vincent@stericsson.com> Cc: Ulf Hansson <ulf.hansson@stericsson.com> Cc: Sebastian Rasmussen <sebastian.rasmussen@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6832/1: mmci: support for ST-Ericsson db8500v2Philippe Langlais2011-05-26
| | | | | | | | | | | ST-Ericsson modified ARM PrimeCell PL180 block has not got an updated corresponding amba-id, althought the IP block has changed in db8500v2. The change was done to the datactrl register. Using the overrided subversion ID, account for this. Signed-off-by: Philippe Langlais <philippe.langlais@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6858/1: mmci: force negative edge on clock bypass for ux500Linus Walleij2011-05-12
| | | | | | | | | | This fixes a regression on high clock speeds with the MMCI on ux500. We need to make sure we derive the passthru clock on the falling edge of the incoming clock if it shall work at high frequencies, and on the ux500's there is a special bit for this. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6785/1: mmci: separate out ST Micro register definesLinus Walleij2011-05-11
| | | | | | | | | | | | | | The mmci.h header contained a few registers not clearly marked as ST Micro only, rectify this and remove the HWFC magic in the process. The idea is to make the mmci.h header file more ordered so other vendors with PL180 derivates can see where to put in their custom register defines. Includes portions of an earlier patch from Sebastian Rasmussen. Acked-by: Sebastian Rasmussen <sebastian.rasmussen@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* mmc: mmci: Add ARM variant with extended FIFOPawel Moll2011-03-25
| | | | | | | | | | | | | New IO FPGA implementation for Versatile Express boards contain MMCI (PL180) cell with FIFO extended to 128 words (512 bytes). Matt Waddel reports that this patch improves MMC performance on his vexpress system, and also fixes "mmcblk0: error -5 transferring data" errors. Signed-off-by: Pawel Moll <pawel.moll@arm.com> Tested-by: Matt Waddel <matt.waddel@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
*---. Merge branches 'aaci', 'mmci-dma', 'pl' and 'pl011' into driversRussell King2011-03-17
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| | * | ARM: amba: make probe() functions take const id tablesRussell King2011-02-23
| | |/ | | | | | | | | | | | | | | | | | | | | | Make Primecell driver probe functions take a const pointer to their ID tables. Drivers should never modify their ID tables in their probe handler. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | ARM: mmci: add dmaengine-based DMA supportRussell King2011-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on a patch from Linus Walleij. Add dmaengine based support for DMA to the MMCI driver, using the Primecell DMA engine interface. The changes over Linus' driver are: - rename txsize_threshold to dmasize_threshold, as this reflects the purpose more. - use 'mmci_dma_' as the function prefix rather than 'dma_mmci_'. - clean up requesting of dma channels. - don't release a single channel twice when it's shared between tx and rx. - get rid of 'dma_enable' bool - instead check whether the channel is NULL. - detect incomplete DMA at the end of a transfer. Some DMA controllers (eg, PL08x) are unable to be configured for scatter DMA and also listen to all four DMA request signals [BREQ,SREQ,LBREQ,LSREQ] from the MMCI. They can do one or other but not both. As MMCI uses LBREQ/LSREQ for the final burst/words, PL08x does not transfer the last few words. - map and unmap DMA buffers using the DMA engine struct device, not the MMCI struct device - the DMA engine is doing the DMA transfer, not us. - avoid double-unmapping of the DMA buffers on MMCI data errors. - don't check for negative values from the dmaengine tx submission function - Dan says this must never fail. - use new dmaengine helper functions rather than using the ugly function pointers directly. - allow DMA code to be fully optimized away using dma_inprogress() which is defined to constant 0 if DMA engine support is disabled. - request maximum segment size from the DMA engine struct device and set this appropriately. - removed checking of buffer alignment - the DMA engine should deal with its own restrictions on buffer alignment, not the individual DMA engine users. - removed setting DMAREQCTL - this confuses some DMA controllers as it causes LBREQ to be asserted for the last seven transfers, rather than six SREQ and one LSREQ. - removed burst setting - the DMA controller should not burst past the transfer size required to complete the DMA operation. Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | ARM: mmci: no need for separate host->data_xferedRussell King2011-02-04
| | | | | | | | | | | | | | | | | | | | | We don't need to store the number of bytes transferred in our host structure - we can store this directly in data->bytes_xfered. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | ARM: mmci: avoid unnecessary switch to data available PIO interruptsRussell King2011-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | We don't need to switch to data available interrupts if there's at least half a FIFO depth worth of data remaining, as we'll still get the FIFO half full interrupt. Keep this interrupt masked off until we have less than half the FIFO depth worth of data remaining. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | ARM: mmci: no need to call flush_dcache_page() with sg_miter APIRussell King2011-02-04
| | | | | | | | | | | | | | | | | | | | | | | | The sg_miter API provides the required cache maintainence, so we don't need to do that ourselves. Remove the unnecessary additional cache maintainence. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | ARM: mmci: avoid reporting too many completed bytes on fifo overrunRussell King2011-02-04
| |/ | | | | | | | | | | | | | | | | | | | | The data counter counts the number of bytes transferred on the MMC bus. When a FIFO overrun occurs, we will not have transferred a FIFOs-worth of data to memory, and so the data counter will be a FIFOs-worth ahead. If this occurs on a block boundary, we will report one too many sectors as successful. Fix this. Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: mmci: round down the bytes transferred on errorRussell King2011-01-31
| | | | | | | | | | | | | | | | We should not report incomplete blocks on error. Return the number of bytes successfully transferred, rounded down to the nearest block. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: mmci: complete the transaction on errorRussell King2011-01-31
| | | | | | | | | | | | | | | | When we encounter an error, make sure we complete the transaction otherwise we'll leave the request dangling. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6642/1: mmci: calculate remaining bytes at error correctlyLinus Walleij2011-01-27
| | | | | | | | | | | | | | | | | | | | | | The MMCIDATACNT register contain the number of byte left at error not the number of words, so loose the << 2 thing. Further if CRC fails on the first block, we may end up with a negative number of transferred bytes which is not good, and the formula was in wrong order. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * mmc: mmci: don't read command response when invalidRussell King - ARM Linux2011-01-25
| | | | | | | | | | | | | | | | | | Don't read the command response from the registers when either the command timed out (because there was no response from the card) or the checksum on the response was invalid. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Chris Ball <cjb@laptop.org>
| * ARM: 6632/3: mmci: stop using the blockend interruptsLinus Walleij2011-01-24
|/ | | | | | | | | | | Implement a suggestion from Russell to drop the use of blockend interrupts altogether and instead rely on the data counter. Tested with error-free cards on U300, U8500 and RealView PB1176. Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: mmci: Clean up MMCI announcement printkRussell King2010-12-30
| | | | | | | | | Make the MMCI announcement printk say which primecell part number has been found. Display the revision as an unsigned decimal, and display only the first 8 hex digits of the base address unless it's larger. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6530/1: mmci: partially revert clock divisor codeLinus Walleij2010-12-19
| | | | | | | | | I misread the datasheet as if bypass mode was not available at all on the ux500's, I was wrong. It is there, the datasheet just states that you should not have to use it. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6526/1: mmci: corrected calculation of clock div for ux500Linus Walleij2010-12-19
| | | | | | | | | | | | | The Ux500 variant of this block has a different divider. The value used right now is too big and which means a loss in performance. This fix corrects it. Also expand the math comments a bit so it's clear what's happening. Further the Ux500 variant does not like if we use the BYPASS bit, instead we are supposed to set the clock divider to zero. Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6438/2: mmci: add SDIO support for ST VariantsLinus Walleij2010-11-10
| | | | | | | | | This adds some minor variant data and trickery to enable SDIO on the ST Micro variants of MMCI/PL180. Signed-off-by: Marcin Mielczarczyk <marcin.mielczarczyk@tieto.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6399/3: mmci: handle broken MCI_DATABLOCKEND hardwareLinus Walleij2010-11-10
| | | | | | | | | | | | | | | | On the U300 the MCI_DATAEND and MCI_DATABLOCKEND IRQs can arrive out-of-order. Replace an ugly #ifdef hack with a proper runtime solution which models what is really happening. In the U300 DMA mode and on all Ux500 models, the MCI_DATABLOCKEND flag isn't properly cleared in hardware following and ACK leading to all kind of weird behaviour when the flag is still up in subsequent interrupts, so we add two flags indicating the error and handle this runtime. Cc: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6311/2: mmci: work with only one irqLinus Walleij2010-11-10
| | | | | | | | | | The DBx500 variants have only one IRQ line hooked up. Allow these (and any other implementations which choose to use only one irq) to work by directing the PIO interrupts also to the first IRQ line. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* mmc: Move regulator handling closer to coreLinus Walleij2010-10-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | After discovering a problem in regulator reference counting I took Mark Brown's advice to move the reference count into the MMC core by making the regulator status a member of struct mmc_host. I took this opportunity to also implement NULL versions of the regulator functions so as to rid the driver code from some ugly #ifdef CONFIG_REGULATOR clauses. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Liam Girdwood <lrg@slimlogic.co.uk> Cc: Tony Lindgren <tony@atomide.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Sundar Iyer <sundar.iyer@stericsson.com> Cc: Daniel Mack <daniel@caiaq.de> Cc: Pierre Ossman <pierre@ossman.eu> Cc: Matt Fleming <matt@console-pimps.org> Cc: David Brownell <dbrownell@users.sourceforge.net> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Cliff Brake <cbrake@bec-systems.com> Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Ball <cjb@laptop.org>
* mmc: Remove distinction between hw and phys segmentsMartin K. Petersen2010-10-23
| | | | | | | | | We have deprecated the distinction between hardware and physical segments in the block layer. Consolidate the two limits into one in drivers/mmc/. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Chris Ball <cjb@laptop.org>
* ARM: 6370/1: mmci: use _cansleep GPIO functionsLinus Walleij2010-09-23
| | | | | | | | | Currently the kernel is screaming about slowpath at me for the wp/cd callbacks. Switch to the _cansleep variants so as to silence this. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6309/1: mmci: allow neither ->status nor gpio_cd to be specifiedRabin Vincent2010-09-23
| | | | | | | | | | The card may be always present on the board, and for these cases neither a status callback nor a card detect GPIO is required, and card detection polling can be disabled. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6308/1: mmci: support card detection interruptsRabin Vincent2010-09-23
| | | | | | | | | If an IRQ can be requested on the card detected GPIO, use it instead of polling. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6310/1: mmci: support different FIFO sizesRabin Vincent2010-08-26
| | | | | | | | | | The Ux500 variant has a 32-word FIFO (TXFIFOEMPTY is asserted when it has 2 left) and TXFIFOHALFEMPTY is repurposed as TXFIFOBURSTWRITEABLE, with a burst being defined as 8-words. Likewise for RX. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6307/1: mmci: allow the card detect GPIO value not to be invertedRabin Vincent2010-08-26
| | | | | | | | | | | On some platforms, the GPIO value from the gpio_cd pin doesn't need to be inverted to get it active high. Add a cd_invert platform data parameter and change existing platforms using GPIO for CD (only Realview) to enable it. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2010-08-03
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (291 commits) ARM: AMBA: Add pclk support to AMBA bus infrastructure ARM: 6278/2: fix regression in RealView after the introduction of pclk ARM: 6277/1: mach-shmobile: Allow users to select HZ, default to 128 ARM: 6276/1: mach-shmobile: remove duplicate NR_IRQS_LEGACY ARM: 6246/1: mmci: support larger MMCIDATALENGTH register ARM: 6245/1: mmci: enable hardware flow control on Ux500 variants ARM: 6244/1: mmci: add variant data and default MCICLOCK support ARM: 6243/1: mmci: pass power_mode to the translate_vdd callback ARM: 6274/1: add global control registers definition header file for nuc900 mx2_camera: fix type of dma buffer virtual address pointer mx2_camera: Add soc_camera support for i.MX25/i.MX27 arm/imx/gpio: add spinlock protection ARM: Add support for the LPC32XX arch ARM: LPC32XX: Arch config menu supoport and makefiles ARM: LPC32XX: Phytec 3250 platform support ARM: LPC32XX: Misc support functions ARM: LPC32XX: Serial support code ARM: LPC32XX: System suspend support ARM: LPC32XX: GPIO, timer, and IRQ drivers ARM: LPC32XX: Clock driver ...
| * ARM: 6246/1: mmci: support larger MMCIDATALENGTH registerRabin Vincent2010-07-29
| | | | | | | | | | | | | | | | | | The Ux500 variant has a 24-bit MMCIDATALENGTH register, as opposed to the 16-bit one on the ARM version. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6245/1: mmci: enable hardware flow control on Ux500 variantsRabin Vincent2010-07-29
| | | | | | | | | | | | | | | | | | Although both the U300 and Ux500 use ST variants, the HWFCEN bits are at different positions, so use the variant_data to store the information. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6244/1: mmci: add variant data and default MCICLOCK supportRabin Vincent2010-07-29
| | | | | | | | | | | | | | | | | | | | | | Add a variant_data structure to handle the differences between the various variants of this peripheral. Add a first quirk for a default MCICLOCK value, required on the Ux500 variant where the enable bit needs to be always set, since it controls access to some registers. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6243/1: mmci: pass power_mode to the translate_vdd callbackRabin Vincent2010-07-29
| | | | | | | | | | | | | | | | | | | | Platforms may have some external power control which need to be controlled from board specific code. Rename the translate_vdd() callback to vdd_handler() and pass it the power mode. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6239/1: mmci: let core poll for card detectionRabin Vincent2010-07-27
| | | | | | | | | | | | | | | | | | | | Use the MMC core's ability to poll for card detection. This also has the advantage of doing the gpio_get_value from a workqueue instead of timer, allowing the gpio to be on a sleeping gpiochip. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6238/1: mmci: fix multi block transfersRabin Vincent2010-07-27
| | | | | | | | | | | | | | | | Fix the data transfer size to allow multi block transfers to work. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * ARM: 6237/1: mmci: use sg_miter API to fix multi-page sg handlingRabin Vincent2010-07-27
| | | | | | | | | | | | | | | | | | | | | | The mmci driver's SG list iteration logic assumes that each SG entry spans only one page, and only maps and flushes one page of the sg. This is not a valid assumption. Fix it by converting the driver to the sg_miter API, which correctly handles sgs which span multiple pages. Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | ARM: Fix Versatile/Realview/VExpress MMC card detection senseRussell King2010-07-30
|/ | | | | | | | | The MMC card detection sense has become really confused with negations at various levels, leading to some platforms not detecting inserted cards. Fix this by converting everything to positive logic throughout, thereby getting rid of these negations. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* mmc: remove the "state" argument to mmc_suspend_host()Matt Fleming2010-05-27
| | | | | | | | | | | | | | | | | | Even though many mmc host drivers pass a pm_message_t argument to mmc_suspend_host() that argument isn't used the by MMC core. As host drivers are converted to dev_pm_ops they'll have to construct pm_message_t's (as they won't be passed by the PM subsystem any more) just to appease the mmc suspend interface. We might as well just delete the unused paramter. Signed-off-by: Matt Fleming <matt@console-pimps.org> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Acked-by: Michal Miroslaw <mirq-linux@rere.qmqm.pl>ZZ Acked-by: Sascha Sommer <saschasommer@freenet.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>
* ARM: 6033/1: ARM: MMCI: pass max frequency from platformLinus Walleij2010-04-14
| | | | | | | | | | | | | | | This introduce the field f_max into the mmci_platform_data, making it possible to pass in a desired block clocking frequency from a board configuration. This is often more desirable than using a module parameter. We keep the module parameter as a fallback as well as the default frequency specified for this parameter if a parameter is not provided. This also adds some kerneldoc style documentation to the platform data struct in mmci.h. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 6032/1: ARM: MMCI: support 8bit mode on the ST Micro versionLinus Walleij2010-04-14
| | | | | | | | | | This adds support for an 8bit wide bus to the card (data lines MCIDAT0 through 7 exist) on the ST Micro version and alters the U300 platform to support this. Also add some ST_ prefix to the ST-specific registers. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 5940/2: ARM: MMCI: remove custom DBG macro and printkLinus Walleij2010-02-21
| | | | | | | | | This removes the custom DBG macro in favor of the in-kernel dev_dbg() macro. Probably a leftover from a time when dev_dbg() didn't yet exist. Also remove a printk() in favor of dev_err(). Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 5896/1: MMCI: work around a hardware bug in U300Linus Walleij2010-01-27
| | | | | | | | | | In the U300 some hardware bug makes the status flag not come up signalling a successful write (or anything else, like an error, for that matter) on write requests. This little quirk makes the writes work on U300. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 5785/1: Use ST vendor enum instead of numeralLinus Walleij2009-11-24
| | | | | | | | | This fixes a leftover instance of using the 0x80 numeral instead of the new AMBA_VENDOR_ST enum in the MMCI/PL180 driver. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 5731/2: Fix U300 generic GPIO, remove ifdefs from MMCI v3Linus Walleij2009-10-01
| | | | | | | | | The #ifdefs in the MMCI driver were erroneous and just masking a bug in the U300 generic GPIO implementation. This removes the ifdefs and fixes the U300 generic GPIO instead. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 5721/1: MMCI enable the use of a regulatorLinus Walleij2009-09-22
| | | | | | | | | | | | This enables the use of a regulator to power the MMCI/PL180 PrimeCell. The OCR mask is calculated and voltage is set using the new MMC core functions for discovering voltage ranges in regulators. The platform translate_vdd function which basically controls the 4 lines out of the PL180 is disabled if you use a regulator instead. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 5720/1: Move MMCI header to amba include dirLinus Walleij2009-09-22
| | | | | | | | | | | | | This moves the mmci platform data definition struct away from arch/arm/include/asm/mach/mmc.h into the more proper place among the other primecells in include/linux/amba/mmci.h and at the same time renames it to "mmci.h", and also the struct in this file confusingly named mmc_platform_data has been renamed mmci_platform_data for clarity. Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: 5698/1: MMCI pass capabilities in platform dataLinus Walleij2009-09-15
| | | | | | | | | | | | This makes it possible to pass down the host controller capabilities for the MMCI driver using the platform data. It also provides the capabilties for the U300 implementation as an example, and makes sure the 4bit wide mode is set if this is requested by the ios() now that we can actually set that capability for a platform. Signed-off-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-23 09:07:32 -0500