aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/mmc/host
AgeCommit message (Collapse)AuthorFilesLines
2011-07-20mmc: host: split up sdhci-pxa, create sdhci-pxav2.cZhangfei Gao3-0/+258
sdhci-pltfm driver for PXAV2 SoCs, such as pxa910. Signed-off-by: Zhangfei Gao <zhangfei.gao@marvell.com> Signed-off-by: Jun Nie <njun@marvell.com> Signed-off-by: Qiming Wu <wuqm@marvell.com> Acked-by: Philip Rakity <prakity@marvell.com> Acked-by: Mark F. Brown <mark.brown314@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-20mmc: host: split up sdhci-pxa, create sdhci-pxav3.cZhangfei Gao3-0/+303
sdhci-pltfm driver for PXAV3 SoCs, such as MMP2. Signed-off-by: Zhangfei Gao <zhangfei.gao@marvell.com> Signed-off-by: Philip Rakity <prakity@marvell.com> Acked-by: Philip Rakity <prakity@marvell.com> Acked-by: Mark F. Brown <mark.brown314@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-20mmc: sdhci: change sdhci-pltfm into a moduleShawn Guo10-87/+112
There are a couple of problems left from the sdhci pltfm and OF consolidation changes. * When building more than one sdhci-pltfm based drivers in the same image, linker will give multiple definition error on the sdhci-pltfm helper functions. For example right now, building sdhci-of-esdhc and sdhci-of-hlwd together is a valid combination from Kconfig view. * With the current build method, there is error with building the drivers as module, but module installation fails with modprobe. The patch fixes above problems by changing sdhci-pltfm into a module. To avoid EXPORT_SYMBOL on so many big endian IO accessors, it moves these accessors into sdhci-pltfm.h as the 'static inline' functions. As a result, sdhci.h needs to be included in sdhci-pltfm.h, and in turn can be removed from individual drivers which already include sdhci-pltfm.h. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-20mmc: sdhci: merge two sdhci-pltfm.h into oneShawn Guo3-3/+5
The structure sdhci_pltfm_data is not necessarily to be in a public header like include/linux/mmc/sdhci-pltfm.h, so the patch moves it into drivers/mmc/host/sdhci-pltfm.h and eliminates the former one. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Reviewed-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-20mmc: sdhci: make sdhci-of device drivers self registeredShawn Guo7-54/+227
The patch turns the sdhci-of-core common stuff into helper functions added into sdhci-pltfm.c, and makes sdhci-of device drviers self registered using the same pair of .probe and .remove used by sdhci-pltfm device drivers. As a result, sdhci-of-core.c and sdhci-of.h can be eliminated with those common things merged into sdhci-pltfm.c and sdhci-pltfm.h respectively. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-20mmc: sdhci: eliminate sdhci_of_host and sdhci_of_dataShawn Guo5-291/+37
The patch migrates the use of sdhci_of_host and sdhci_of_data to sdhci_pltfm_host and sdhci_pltfm_data, so that the former pair can be eliminated. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Reviewed-by: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-20mmc: sdhci: make sdhci-pltfm device drivers self registeredShawn Guo8-217/+313
The patch turns the common stuff in sdhci-pltfm.c into functions, and add device drivers their own .probe and .remove which in turn call into the common functions, so that those sdhci-pltfm device drivers register itself and keep all device specific things away from common sdhci-pltfm file. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Reviewed-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-07-19ARM: 6981/2: mmci: adjust calculation of f_minLinus Walleij1-1/+9
The ARM version maximum clock divider is 512 whereas for the ST variants it's 257. Let's use DIV_ROUND_UP() for both cases so we can see clearly what's going on here. [Use DIV_ROUND_UP to clarify elder code] Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com> Reviewed-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>
2011-07-15Merge branch 'fixes-for-arnd' of git://git.pengutronix.de/git/imx/linux-2.6 into imx/fixesArnd Bergmann7-15/+23
2011-07-14Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6David S. Miller2-1/+6
Conflicts: net/bluetooth/l2cap_core.c
2011-07-11Merge branch 'master' into for-nextJiri Kosina7-17/+33
Sync with Linus' tree to be able to apply pending patches that are based on newer code already present upstream.
2011-07-07ARM i.MX dma: Fix burstsize settingsSascha Hauer1-4/+4
dmaengine expects the maxburst parameter in words, not bytes. The imxdma driver and its users do this wrong. Fix this. As a side note the imx-pcm-dma-mx2 driver was 'fixed' to work with imx-dma. This broke the driver with imx-sdma support which correctly takes the maxburst parameter in words. This patch puts the sdma based sound back to work. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2011-07-06ARM: 6980/1: mmci: use StartBitErr to detect bad connectionsLinus Walleij2-1/+6
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>
2011-07-05Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6David S. Miller5-14/+17
2011-06-25mmc: sdhi: DMA slave ID 0 is invalidGuennadi Liakhovetski1-1/+1
Don't try to allocate DMA resources if the platform didn't specify positive DMA slave IDs. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-06-25mmc: tmio: fix regression in TMIO_MMC_WRPROTECT_DISABLE handlingGuennadi Liakhovetski1-2/+2
Commit b6147490e6aac82 ("mmc: tmio: split core functionality, DMA and MFD glue") broke handling of the TMIO_MMC_WRPROTECT_DISABLE flag by the tmio-mmc driver. This patch restores the original behaviour. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: <stable@kernel.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-06-25mmc: omap_hsmmc: use original sg_len for dma_unmap_sgPer Forlin1-2/+3
Don't use the returned sg_len from dma_map_sg() as inparameter to dma_unmap_sg(). Use the original sg_len for both dma_map_sg and dma_unmap_sg according to the documentation in DMA-API.txt. Signed-off-by: Per Forlin <per.forlin@linaro.org> Reviewed-by: Venkatraman S <svenkatr@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-06-25mmc: omap_hsmmc: fix ocr mask usageAnand Gadiyar1-1/+0
The OMAP HSMMC driver uses an ocr_mask to determine the list of voltages supported by the card. It populates this mask based on the list of voltages supported by the regulator that supplies the voltage. Commit 64be97822b (omap4 hsmmc: Update ocr mask for MMC2 for regulator to use) passed a fixed ocr_mask from the OMAP4 SDP board file to limit the voltage to 2.9-3.0 Volts, and updated the driver to use this mask if provided, instead of using the regulator's supported voltages. However the commit is buggy - the ocr_mask is overridden by the regulator's capabilities anyway. Fix this. (The bug shows up when a system-wide suspend is attempted on the OMAP4 SDP/Blaze platforms. The eMMC card comes up at 3V, but drops to 1.65V after the system resumes). Signed-off-by: Anand Gadiyar <gadiyar@ti.com> Acked-by: Balaji T K <balajitk@ti.com> Acked-by: Venkatraman S <svenkatr@ti.com> Tested-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-06-24treewide: Fix recieve/receive typosJoe Perches1-2/+2
Just spelling fixes. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-06-21net: remove mm.h inclusion from netdevice.hAlexey Dobriyan1-0/+1
Remove linux/mm.h inclusion from netdevice.h -- it's unused (I've checked manually). To prevent mm.h inclusion via other channels also extract "enum dma_data_direction" definition into separate header. This tiny piece is what gluing netdevice.h with mm.h via "netdevice.h => dmaengine.h => dma-mapping.h => scatterlist.h => mm.h". Removal of mm.h from scatterlist.h was tried and was found not feasible on most archs, so the link was cutoff earlier. Hope people are OK with tiny include file. Note, that mm_types.h is still dragged in, but it is a separate story. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-18mmc: sdhi: fix module unloadingGuennadi Liakhovetski1-1/+2
MMC host drivers must be able to process interrupts during mmc_remove_host(). Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-06-18mmc: of_mmc_spi: add NO_IRQ define to of_mmc_spi.cWanlong Gao1-0/+5
Provide a dummy value of NO_IRQ for architectures that don't support it (such as MIPS). Fixes the build error for MIPS. Signed-off-by: Wanlong Gao <wanlong.gao@gmail.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-06-18mmc: vub300: fix null dereferences in error handlingChris Ball1-7/+4
Reported-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-06-15Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds1-2/+10
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm: ARM: footbridge: fix clock event support ARM: footbridge: fix debug macros ARM: initrd: disable initrds outside of memory ARM: extend Code: line by one 16-bit quantity for Thumb instructions ARM: 6955/1: cmpxchg syscall should data abort if page not write ARM: 6954/1: zImage: fix Thumb2 breakage ARM: 6953/1: DT: don't try to access physical address zero ARM: 6949/2: mach-u300: fix compilaton warning in IO accessors Revert "ARM: 6944/1: mm: allow ASID 0 to be allocated to tasks" Revert "ARM: 6943/1: mm: use TTBR1 instead of reserved context ID" davinci: make PCM platform devices static arm: davinci: Fix fallout from generic irq chip conversion ARM: 6894/1: mmci: trigger card detect IRQs on falling and rising edges ARM: 6952/1: fix lockdep warning of "unannotated irqs-off" ARM: 6951/1: include .bss in memory layout information ARM: 6948/1: Fix .size directives for __arm{7,9}tdmi_proc_info ARM: 6947/2: mach-u300: fix compilation error in timer ARM: 6946/1: vexpress: move v2m clock init to init_early ARM: mx51/sdma: Check the chip revision in run-time arm: mxs: include asm/processor.h for cpu_relax()
2011-06-10treewide: Convert uses of struct resource to resource_size(ptr)Joe Perches1-1/+1
Several fixes as well where the +1 was missing. Done via coccinelle scripts like: @@ struct resource *ptr; @@ - ptr->end - ptr->start + 1 + resource_size(ptr) and some grep and typing. Mostly uncompiled, no cross-compilers. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-06-06ARM: 6894/1: mmci: trigger card detect IRQs on falling and rising edgesLinus Walleij1-2/+10
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>
2011-06-01ARM: OMAP4: MMC: no regulator off during probe for eMMCBalaji T K1-0/+3
eMMC does not handle power off when not in sleep state, Skip regulator disable during probe when eMMC is not in known state - state left by bootloader. Resolves eMMC failure on OMAP4 mmc0: error -110 whilst initialising MMC card Signed-off-by: Balaji T K <balajitk@ti.com> Tested-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Acked-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-05-27Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds1-2/+23
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (45 commits) ARM: 6945/1: Add unwinding support for division functions ARM: kill pmd_off() ARM: 6944/1: mm: allow ASID 0 to be allocated to tasks ARM: 6943/1: mm: use TTBR1 instead of reserved context ID ARM: 6942/1: mm: make TTBR1 always point to swapper_pg_dir on ARMv6/7 ARM: 6941/1: cache: ensure MVA is cacheline aligned in flush_kern_dcache_area ARM: add sendmmsg syscall ARM: 6863/1: allow hotplug on msm ARM: 6832/1: mmci: support for ST-Ericsson db8500v2 ARM: 6830/1: mach-ux500: force PrimeCell revisions ARM: 6829/1: amba: make hardcoded periphid override hardware ARM: 6828/1: mach-ux500: delete SSP PrimeCell ID ARM: 6827/1: mach-netx: delete hardcoded periphid ARM: 6940/1: fiq: Briefly document driver responsibilities for suspend/resume ARM: 6938/1: fiq: Refactor {get,set}_fiq_regs() for Thumb-2 ARM: 6914/1: sparsemem: fix highmem detection when using SPARSEMEM ARM: 6913/1: sparsemem: allow pfn_valid to be overridden when using SPARSEMEM at91: drop at572d940hf support at91rm9200: introduce at91rm9200_set_type to specficy cpu package at91: drop boot_params and PLAT_PHYS_OFFSET ...
2011-05-26mmc: Use device platform_data to retrieve tmio_mmc platform bitsSamuel Ortiz1-1/+1
With the addition of the platform device mfd_cell pointer, we can now cleanly pass the sub device drivers platform data pointers through the regular device platform_data one, and get rid of mfd_get_data() Cc: Ian Molton <spyro@f2s.com> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Philipp Zabel <philipp.zabel@gmail.com> Acked-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2011-05-26ARM: 6832/1: mmci: support for ST-Ericsson db8500v2Philippe Langlais1-2/+23
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>
2011-05-25Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmcLinus Torvalds15-161/+3826
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (75 commits) mmc: core: eMMC bus width may not work on all platforms mmc: sdhci: Auto-CMD23 fixes. mmc: sdhci: Auto-CMD23 support. mmc: core: Block CMD23 support for UHS104/SDXC cards. mmc: sdhci: Implement MMC_CAP_CMD23 for SDHCI. mmc: core: Use CMD23 for multiblock transfers when we can. mmc: quirks: Add/remove quirks conditional support. mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver mmc: sdhci-pxa: Add quirks for DMA/ADMA to match h/w mmc: core: duplicated trial with same freq in mmc_rescan_try_freq() mmc: core: add support for eMMC Dual Data Rate mmc: core: eMMC signal voltage does not use CMD11 mmc: sdhci-pxa: add platform code for UHS signaling mmc: sdhci: add hooks for setting UHS in platform specific code mmc: core: clear MMC_PM_KEEP_POWER flag on resume mmc: dw_mmc: fixed wrong regulator_enable in suspend/resume mmc: sdhi: allow powering down controller with no card inserted mmc: tmio: runtime suspend the controller, where possible mmc: sdhi: support up to 3 interrupt sources mmc: sdhi: print physical base address and clock rate ...
2011-05-25mmc: sdhci: Auto-CMD23 fixes.Andrei Warkentin1-2/+2
Fixes bugs in Auto-CMD23 feature enable decision. Auto-CMD23 should be enabled if host is >= v3, and SDMA is not in use. USE_ADMA | USE_SDMA | Auto-CMD23 ---------+----------+----------- 0 | 0 | 1 ---------+----------+----------- 0 | 1 | 0 ---------+----------+----------- 1 | 0 | 1 ---------+----------+----------- 1 | 1 | 1 Signed-off-by: Andrei Warkentin <andreiw@motorola.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-25mmc: sdhci: Auto-CMD23 support.Andrei Warkentin2-1/+18
Enables Auto-CMD23 support where available (SDHCI 3.0 controllers) Signed-off-by: Andrei Warkentin <andreiw@motorola.com> Tested-by: Arindam Nath <arindam.nath@amd.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-25mmc: sdhci: Implement MMC_CAP_CMD23 for SDHCI.Andrei Warkentin2-17/+48
Implements support for multiblock transfers bounded by SET_BLOCK_COUNT (CMD23). Signed-off-by: Andrei Warkentin <andreiw@motorola.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: Add new VUB300 USB-to-SD/SDIO/MMC driverTony Olech3-0/+2538
Add a driver for Elan Digital System's VUB300 chip which is a USB connected SDIO/SDmem/MMC host controller. A VUB300 chip enables a USB 2.0 or USB 1.1 connected host computer to use SDIO/SD/MMC cards without the need for a directly connected, for example via PCI, SDIO host controller. Signed-off-by: Anthony F Olech <tony.olech@elandigitalsystems.com> [cjb: various punctuation and style fixes] Tested-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: sdhci-pxa: Add quirks for DMA/ADMA to match h/wPhilip Rakity1-1/+6
32 Bit DMA/ADMA Access 32 Bit Size Support ADMA End Descriptor in current chain (no need for dummy entry) Signed-off-by: Philip Rakity <prakity@marvell.com> Tested-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: sdhci-pxa: add platform code for UHS signalingPhilip Rakity1-0/+41
Marvell controller requires 1.8V bit in UHS control register 2 be set when doing UHS. eMMC does not require 1.8V for DDR. add platform code to handle this. Signed-off-by: Philip Rakity <prakity@marvell.com> Reviewed-by: Arindam Nath <arindam.nath@amd.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: sdhci: add hooks for setting UHS in platform specific codePhilip Rakity2-15/+20
Allow platform specific code to set UHS registers if implementation requires speciial platform specific handling Signed-off-by: Philip Rakity <prakity@marvell.com> Reviewed-by: Arindam Nath <arindam.nath@amd.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: dw_mmc: fixed wrong regulator_enable in suspend/resumeJaehoon Chung1-3/+3
regulator_enable() was incorrectly placed in the suspend function instead of the resume function. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: sdhi: allow powering down controller with no card insertedGuennadi Liakhovetski1-0/+6
Supply a link to TMIO private data for platforms to implement their own card detection. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: tmio: runtime suspend the controller, where possibleGuennadi Liakhovetski2-6/+61
The TMIO MMC controller cannot be powered off to save power, when no card is plugged in, because then it will not be able to detect a new card-insertion event. On some implementations, however, it is possible to switch to using another source to detect card insertion. This patch adds support for such implementations. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: sdhi: support up to 3 interrupt sourcesMagnus Damm1-11/+28
Convert the SDHI code to support more than a single interrupt source. Needed to support hardware that uses GIC instead of INTC as interrupt controller. Will also allow us to remove the irq forwarding workaround from the INTC code in the future. Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: sdhi: print physical base address and clock rateMagnus Damm1-2/+4
Instead of printing out useless information such as the virtual base address and one of 4 interrupts, convert the SDHI probe() to print out physical base address together with clock rate. We do have a struct device so make use of dev_info(). Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: sdhi: no need for special interrupt flagsMagnus Damm1-2/+1
Modify the SDHI driver to get rid of unwanted irq flags. IRQF_DISABLED unused, see include/linux/interrupt.h IRQF_TRIGGER_FALLING only relevant on external IRQ pins, but since SDHI is internal in the SoC this can go away. Needed to support SDHI on sh73a0 that comes with a GIC that errors out with the IRQF_TRIGGER_FALLING setting. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: tmio/sdhi: break out interrupt request/freeMagnus Damm4-21/+37
Move request_irq()/free_irq() from the shared code in tmio_mmc.c into the SDHI/tmio specific portion in sh_mobile_sdhi.c and tmio_mmc_pio.c. This is ground work to allow us to adjust the SDHI code with IRQ flags and number of interupt sources. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: protect the tmio_mmc driver against a theoretical raceGuennadi Liakhovetski2-6/+57
The MMC subsystem does not guarantee, that host driver .request() and .set_ios() callbacks are serialised. Such concurrent calls, however, do not have to be meaningfully supported, drivers just have to make sure to avoid any severe problems. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: add runtime and system power-management support to the MMCIF driverGuennadi Liakhovetski1-9/+69
Adding support for runtime power-management to the MMCIF driver allows it to save power as long as no card is present. To also allow to turn off the power domain at that time, we release DMA channels during that time, since on some sh-mobile systems the DMA controller(s) and the MMCIF block belong to the same power domain. System-wide power management has been tested with experimental PM patches on AP4-based systems. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: Add runtime and system-wide PM to the TMIO MMC driverGuennadi Liakhovetski5-19/+86
Add runtime and system-wide power management to the TMIO MMC driver in PIO and DMA modes, allowing it to properly save and restore its state during system suspend. Runtime PM is very crude ATM, because the controller has to be powered on all the time to detect card hotplug events. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: sh_mmcif: protect against a theoretical raceGuennadi Liakhovetski1-8/+42
The MMC subsystem does not guarantee that host driver .request() and .set_ios() callbacks are serialised. Such concurrent calls, however, do not have to be meaningfully supported, drivers just have to make sure to avoid any severe problems. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Simon Horman <horms@verge.net.au> Cc: Magnus Damm <damm@opensource.se> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-05-24mmc: sdhci: add support for retuning mode 1Arindam Nath2-3/+112
Host Controller v3.00 can support retuning modes 1,2 or 3 depending on the bits 46-47 of the Capabilities register. Also, the timer count for retuning is indicated by bits 40-43 of the same register. We initialize timer_list for retuning the first time we execute tuning procedure. This condition is indicated by SDHCI_NEEDS_RETUNING not being set. Since retuning mode 1 sets a limit of 4MB on the maximum data length, we set max_blk_count appropriately. Once the tuning timer expires, we set SDHCI_NEEDS_RETUNING flag, and if the flag is set, we execute tuning procedure before sending the next command. We need to restore mmc_request structure after executing retuning procedure since host->mrq is used inside the procedure to send CMD19. We also disable and re-enable this flag during suspend and resume respectively, as per the spec v3.00. Tested by Zhangfei Gao with a Toshiba uhs card and general hs card, on mmp2 in SDMA mode. Signed-off-by: Arindam Nath <arindam.nath@amd.com> Reviewed-by: Philip Rakity <prakity@marvell.com> Tested-by: Philip Rakity <prakity@marvell.com> Acked-by: Zhangfei Gao <zhangfei.gao@marvell.com> Signed-off-by: Chris Ball <cjb@laptop.org>