summaryrefslogtreecommitdiff
path: root/drivers/mmc
AgeCommit message (Collapse)AuthorFilesLines
2011-10-29Merge branch 'for-linus' of ↵Linus Torvalds59-944/+2855
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (83 commits) mmc: fix compile error when CONFIG_BLOCK is not enabled mmc: core: Cleanup eMMC4.5 conditionals mmc: omap_hsmmc: if multiblock reads are broken, disable them mmc: core: add workaround for controllers with broken multiblock reads mmc: core: Prevent too long response times for suspend mmc: recognise SDIO cards with SDIO_CCCR_REV 3.00 mmc: sd: Handle SD3.0 cards not supporting UHS-I bus speed mode mmc: core: support HPI send command mmc: core: Add cache control for eMMC4.5 device mmc: core: Modify the timeout value for writing power class mmc: core: new discard feature support at eMMC v4.5 mmc: core: mmc sanitize feature support for v4.5 mmc: dw_mmc: modify DATA register offset mmc: sdhci-pci: add flag for devices that can support runtime PM mmc: omap_hsmmc: ensure pbias configuration is always done mmc: core: Add Power Off Notify Feature eMMC 4.5 mmc: sdhci-s3c: fix potential NULL dereference mmc: replace printk with appropriate display macro mmc: core: Add default timeout value for CMD6 mmc: sdhci-pci: add runtime pm support ...
2011-10-27mmc: core: Cleanup eMMC4.5 conditionalsSeungwon Jeon1-11/+9
Code cleanup, putting all eMMC 4.5 detection cases together. This patch removes one if-statement and assembles all. And it also removes variable initialization below else-statement -- all members of card structure are already set to zero at card-init. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: omap_hsmmc: if multiblock reads are broken, disable themPaul Walmsley1-0/+4
When device data indicates that multiple block reads are not supported on a given HSMMC controller instance, log a message to the console, and pass the appropriate MMC capability flag to the MMC core. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Dave Hylands <dhylands@gmail.com> Tested-by: Steve Sakoman <sakoman@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: add workaround for controllers with broken multiblock readsPaul Walmsley1-7/+14
Due to hardware bugs, some MMC host controllers don't support multiple-block reads[1]. To resolve, add a new MMC capability flag, MMC_CAP2_NO_MULTI_READ, which can be set by affected host controller drivers. When this capability is set, all reads will be issued one sector at a time. 1. See for example Advisory 2.1.1.128 "MMC: Multiple Block Read Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_ Revision F (October 2010) (SPRZ278F), available from http://focus.ti.com/lit/er/sprz278f/sprz278f.pdf Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Dave Hylands <dhylands@gmail.com> Tested-by: Steve Sakoman <sakoman@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27Merge branch 'clk' of ↵Linus Torvalds1-1/+8
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'clk' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: ARM: 7131/1: clkdev: Add Common Macro for clk_lookup clk: spi-pl022: convert to clk_prepare()/clk_unprepare() clk: timer-sp: convert to clk_prepare()/clk_unprepare() clk: sa1111: convert to clk_prepare()/clk_unprepare() clk: mmci: convert to clk_prepare()/clk_unprepare() clk: amba-pl011: convert to clk_prepare()/clk_unprepare() clk: amba-pl010: convert to clk_prepare()/clk_unprepare() clk: amba-clcd: convert to clk_prepare()/clk_unprepare() clk: amba bus: convert to clk_prepare()/clk_unprepare() clk: provide prepare/unprepare functions
2011-10-27Merge branch 'amba' of ↵Linus Torvalds1-0/+12
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'amba' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: ARM: 7079/1: spi: Fix builderror in spi-pl022.c PM: add runtime PM support to MMCI PM: add runtime PM support to core Primecell driver
2011-10-27Merge branch 'gpio' of ↵Linus Torvalds2-2/+4
http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm * 'gpio' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (43 commits) ARM: 7135/1: ep93xx: bring back missing <mach/gpio.h> ARM: 7104/1: plat-pxa: break out GPIO driver specifics ARM: 7103/1: plat-pxa: move PXA GPIO driver to GPIO subsystem ARM: 7042/3: mach-ep93xx: break out GPIO driver specifics ARM: 7101/1: arm/tegra: Replace <mach/gpio.h> with <mach/gpio-tegra.h> ARM: 7094/1: arm/tegra: Move EN_VDD_1V05_GPIO to board-harmony.h ARM: 7083/1: rewrite U300 GPIO to use gpiolib ARM: 7074/1: gpio: davinci: eliminate unused variable warnings ARM: 7063/1: Orion: gpio: add missing include of linux/types.h ARM: 7055/1: arm/tegra: mach/gpio.h: include linux/types.h to fix build ARM: 7054/1: arm/tegra: Delete custom gpio_to_irq, and irq_to_gpio ARM: 7053/1: gpio/tegra: Implement gpio_chip.to_irq ARM: 7052/1: gpio/tegra: Remove use of irq_to_gpio ARM: 7057/1: mach-pnx4008: rename GPIO header ARM: 7056/1: plat-nomadik: kill off <plat/gpio.h> ARM: 7050/1: mach-sa1100: delete irq_to_gpio() function ARM: 7049/1: mach-sa1100: move SA1100 GPIO driver to GPIO subsystem ARM: 7045/1: mach-lpc32xx: break out GPIO driver specifics ARM: 7044/1: mach-lpc32xx: move LPC32XX GPIO driver to GPIO subsystem ARM: 7043/1: mach-ixp2000: rename GPIO header ... Fix up trivial conflicts in arch/arm/mach-u300/Kconfig manually
2011-10-27mmc: core: Prevent too long response times for suspendUlf Hansson1-15/+27
While trying to suspend the mmc host there could still be ongoing requests that we need to wait for. At the same time a device driver must respond to a suspend request rather quickly. Instead of potentially wait "forever" by claiming the host we now "try" to claim the host instead. If it fails, -EBUSY is returned. Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com> Reviewed-by: Sujit Reddy Thumma <sthumma@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: recognise SDIO cards with SDIO_CCCR_REV 3.00Bing Zhao1-1/+1
Table 6-2: CCCR bit Definitions, address 00h. Part E1 SDIO Simplified Specification Version 3.00, Feb. 25, 2011. This patch has been tested with Marvell WLAN device SD8797. Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sd: Handle SD3.0 cards not supporting UHS-I bus speed modeSubhash Jadavani1-3/+3
Here is Essential conditions to indicate Version 3.00 Card (SD_SPEC=2 and SD_SPEC3=1) : (1) The card shall support CMD6 (2) The card shall support CMD8 (3) The card shall support CMD42 (4) User area capacity shall be up to 2GB (SDSC) or 32GB (SDHC) User area capacity shall be more than or equal to 32GB and up to 2TB (SDXC) (5) Speed Class shall be supported (SDHC or SDXC) So even if SD card doesn't support any of the newly defined UHS-I bus speed mode, it can advertise itself as SD3.0 cards as long as it supports all the essential conditions of SD3.0 cards. Given this, these type of cards should atleast run in High Speed mode @50MHZ if it supports HS. But current initialization sequence for SD3.0 cards is such that these non-UHS-I SD3.0 cards runs in Default Speed mode @25MHz. This patch makes sure that these non-UHS-I SD3.0 cards run in High Speed Mode @50MHz. Tested this patch with SanDisk Extreme SDHC 8GB Class 10 card. Reported-by: "Hiremath, Vaibhav" <hvaibhav@ti.com> Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: support HPI send commandJaehoon Chung4-0/+120
HPI command is defined in eMMC4.41. This feature is important for eMMC4.5 devices. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: Add cache control for eMMC4.5 deviceSeungwon Jeon3-6/+94
This patch adds cache feature of eMMC4.5 Spec. If device supports cache capability, host can utilize some specific operations. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: Modify the timeout value for writing power classSeungwon Jeon1-1/+1
This patch will apply the generic CMD6 timeout to switch command for power class. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: new discard feature support at eMMC v4.5Kyungmin Park3-1/+21
MMC v4.5 supports the DISCARD feature (CMD38). It's different from trim and there's no check bit. Currently it's only supported at v4.5. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: mmc sanitize feature support for v4.5Kyungmin Park3-2/+17
In the v4.5, there's no secure erase & trim support. Instead it supports the sanitize feature. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: dw_mmc: modify DATA register offsetJaehoon Chung2-22/+57
In dw_mmc 2.40a spec, Data register's offset is changed. Before we used Data register offset 0x100. but if somebody uses a 2.40a controller, we must use 0x200 for Data register. This patch adds a version-id checking point and uses SDMMC_DATA(x) instead of SDMMC_DATA. It assumes 2.40a is the latest version. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sdhci-pci: add flag for devices that can support runtime PMAdrian Hunter1-4/+13
Only allow runtime PM for devices that specifically indicate that they support it. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: omap_hsmmc: ensure pbias configuration is always doneAdrian Hunter1-9/+8
Go through the driver's set_power() functions rather than calling regulator_enable/disable() directly because otherwise pbias configuration for MMC1 is not done. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Acked-by: Balaji T K <balajitk@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: Add Power Off Notify Feature eMMC 4.5Girish K S3-2/+64
This patch adds support for the power off notify feature, available in eMMC 4.5 devices. If the host has support for this feature, then the mmc core will notify the device by setting the POWER_OFF_NOTIFICATION byte in the extended csd register with a value of 1 (POWER_ON). For suspend mode short timeout is used, whereas for the normal poweroff long timeout is used. Signed-off-by: Girish K S <girish.shivananjappa@linaro.org> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sdhci-s3c: fix potential NULL dereferenceJaehoon Chung1-2/+4
sc->clk_bus[ptr] could be NULL. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: replace printk with appropriate display macroGirish K S28-176/+172
All the files using printk function for displaying kernel messages in the mmc driver have been replaced with corresponding macro. Signed-off-by: Girish K S <girish.shivananjappa@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: Add default timeout value for CMD6Seungwon Jeon1-4/+12
EXT_CSD[248] includes the default maximum timeout for CMD6. This field is added at eMMC4.5 Spec. And it can be used for default timeout except for some operations which don't define the timeout (i.e. background operation, sanitize, flush cache) in eMMC4.5 Spec. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sdhci-pci: add runtime pm supportAdrian Hunter3-45/+397
Ths patch allows runtime PM for sdhci-pci, runtime suspending after inactivity of 50ms and ensuring runtime resume before SDHC registers are accessed. During runtime suspend, interrupts are masked. The host controller state is restored at runtime resume. For Medfield, the host controller's card detect mechanism is supplanted by an always-on GPIO which provides for card detect wake-up. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: move ->request() call from atomic contextAdrian Hunter1-7/+21
mmc_request_done() is sometimes called from interrupt or other atomic context. Mostly all mmc_request_done() does is complete(), however it contains code to retry on error, which uses ->request(). As the error path is certainly not performance critical, this may be moved to the waiting function mmc_wait_for_req_done(). This allows ->request() to use runtime PM get_sync() and guarantee it is never in an atomic context. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Ulf Hansson <ulf.hansson@stericsson.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: Add module.h to drivers/mmc users assuming implicit presence.Paul Gortmaker17-0/+17
We are cleaning up the implicit presence of module.h; these guys are some of the people who just assume it will be there. Call it out explitly for those that really need it. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: using module_param requires the inclusion of moduleparam.hStephen Rothwell1-0/+1
Commit "mmc: add module param to set fault injection attributes" adds a module_param to this file. But it is relying on the old implicit "module.h is everywhere" behaviour, and without the explicit include of moduleparam.h, the pending module.h split up produces this error: core/debugfs.c:28:35: error: expected ')' before numeric constant Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: general purpose MMC partition support.Namjae Jeon2-18/+65
It allows gerneral purpose partitions in MMC Device. And I try to simply make mmc_blk_alloc_parts using mmc_part structure suggested by Andrei Warkentin. After patching, we see general purpose partitions like this: > cat /proc/partitions 179 0 847872 mmcblk0 179 192 4096 mmcblk0gp3 179 160 4096 mmcblk0gp2 179 128 4096 mmcblk0gp1 179 96 1052672 mmcblk0gp0 179 64 1024 mmcblk0boot1 179 32 1024 mmcblk0boot0 Signed-off-by: Namjae Jeon <linkinjeon@gmail.com> Acked-by: Andrei Warkentin <awarkentin@vmware.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: ext_csd.raw_* used in comparison but never setAndrei Warkentin1-0/+2
f39b2dd9d ("mmc: core: Bus width testing needs to handle suspend/resume") added code to only compare read-only ext_csd fields in bus width testing code, yet it's comparing some fields that are never set. The affected fields are ext_csd.raw_erased_mem_count and ext_csd.raw_partition_support. Signed-off-by: Andrei Warkentin <andrey.warkentin@gmail.com> Acked-by: Philip Rakity <prakity@marvell.com> Cc: <stable@kernel.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: irq: Remove IRQF_DISABLEDYong Zhang2-5/+4
Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled], we run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled (see commit [b738a50a: genirq: Warn when handler enables interrupts]). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Acked-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: block: support no access to boot partitionsAdrian Hunter2-1/+3
Intel Medfield platform blocks access to eMMC boot partitions which results in switch errors. Since there is no access, mmcboot0/1 devices should not be created. Add a host capability to reflect that. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: block: fix boot partition switch error pathAdrian Hunter1-3/+13
In the case of a switch error, do not update partition config as though the switch succeeded, and ensure blk_end_request is called on the failed request. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Andrei Warkentin <andrey.warkentin@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: eMMC 4.5 Power Class Selection FeatureGirish K S1-0/+96
This patch adds the power class selection feature available for mmc versions 4.0 and above. During the enumeration stage before switching to the lower data bus, check if the power class is supported for the current bus width. If the power class is available then switch to the power class and use the higher data bus. If power class is not supported then switch to the lower data bus in a worst case. Signed-off-by: Girish K S <girish.shivananjappa@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: add module param to set fault injection attributesPer Forlin1-18/+11
Replace setup("fail_mmc_request") and faulty "ifdef KERNEL" with a simple module_param(). The module param mmc_core.fail_request may be used to set the fault injection attributes during boot time or module load time. Signed-off-by: Per Forlin <per.forlin@linaro.org> Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sdhci-esdhc-imx: add basic imx6q usdhc supportShawn Guo2-7/+35
This patch adds the basic support for imx6q usdhc, which is a derivative of esdhc controller. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: add sd uhs string for mmc_ios_showAaron Lu1-0/+9
This is a minor fix. It makes mmc_ios_show print proper string when the host's timing is one of the newly added UHS-I modes. Signed-off-by: Aaron Lu <aaron.lu@amd.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sh_mmcif: simplify platform dataGuennadi Liakhovetski1-4/+16
Provide platforms with a simplified way to specify MMCIF DMA slave IDs in a way, similar to SDHI and other sh_dma clients. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: block: add eMMC hardware reset supportAdrian Hunter2-61/+144
For cards that support hardware reset (just eMMC), try a reset and retry before returning an I/O error. However this is not done for ECC errors and is never done twice for the same operation type (READ, WRITE, DISCARD, SECURE DISCARD) until that type of operation again succeeds. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: mmc-test: add eMMC hardware reset testAdrian Hunter1-0/+30
MMC core provides a checking function that checks if the reset has happended. Add a test to use that function. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sdhci-pci: add eMMC hardware reset supportAdrian Hunter1-0/+72
Implement eMMC hardware reset for Medfield. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sdhci: add eMMC hardware reset supportAdrian Hunter2-1/+10
Add an SDHCI operation for hardware reset and connect it to the host controller operation. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: add eMMC hardware reset supportAdrian Hunter2-1/+97
eMMC's may have a hardware reset line. This patch provides a host controller operation to implement hardware reset and a function to reset and reinitialize the card. Also, for MMC, the reset is always performed before initialization. The host must set the new host capability MMC_CAP_HW_RESET to enable hardware reset. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: mmci: simplify err check in mmci_post_requestPer Forlin1-1/+1
The error condition indicates that mmci_post_request() should cleanup after the mmci_pre_request(). In this case the resources allocated by device_prep_slave_sg() are freed by calling dmaengine_terminate_all(). dma_unmap_sg() should always be performed if the host_cookie is set. Signed-off-by: Per Forlin <per.forlin@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: clarify how to use post_req in case of errorsPer Forlin1-0/+6
The err condition in post_req() is set to undo a call made to pre_req() that hasn't been started yet. The err condition is not set if an MMC request returns an error. Signed-off-by: Per Forlin <per.forlin@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: Set correct bus mode before card initStefan Nilsson XK4-9/+11
Earlier all cards where initiated with bus mode set as OPENDRAIN, and then later switched to PUSHPULL. According to the MMC/SD/SDIO specifications only MMC cards use OPENDRAIN during init. For both SD and SDIO the bus mode shall be PUSHPULL before attempting to init the card. The consequence of having incorrect bus mode can lead to not being able to detect the card. Therefore the default behavior have now been changed to PUSHPULL in mmc_power_up, and will only be temporarily switched when trying to attach or init a MMC card. Signed-off-by: Stefan Nilsson XK <stefan.xk.nilsson@stericsson.com> Signed-off-by: Ulf HANSSON <ulf.hansson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sdio: Workaround for dev with broken CMD53Stefan Nilsson XK2-2/+16
Adds a quirk which can be turned on for SDIO devices that do not support 512 byte requests in byte mode during CMD53. These requests will always be sent in block mode instead. This patch also enables this quirk for ST-Ericsson CW1200 WLAN device. Signed-off-by: Stefan Nilsson XK <stefan.xk.nilsson@stericsson.com> Signed-off-by: Ulf HANSSON <ulf.hansson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sdhci-pxa: Check pdata before using its membersTanmay Upadhyay1-2/+2
Signed-off-by: Tanmay Upadhyay <tanmay.upadhyay@einfochips.com> Acked-by: Zhangfei Gao <zhangfei.gao@marvell.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: core: Fix hangs related to insert/remove of cardsUlf Hansson5-5/+9
During a rescan operation mmc_attach(sd|mmc|sdio) functions are called. The error handling in these function can trigger a detach of the bus, which also meant a power off. This is not notified by the rescan operation which then continues to the next attach function. If a power off has been done, the framework must never send any new commands to the host driver, without first doing a new power up. This will most likely trigger any host driver to hang. Moving power off out of detach and instead handle power off separately when it is actually needed, solves the issue. Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: <stable@kernel.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sdhci-spear: Don't set power gpio to 1 on probeViresh Kumar1-2/+0
Currently if card_power_gpio is passed from platform data, it is acquired and its value is either set or reset. After that we overwrite it with 1, which is not required. So, this patch removes the extra line which sets its value. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27mmc: sdhci-of-esdhc: Access Freescale eSDHC registers as 32-bitXu lei1-4/+14
Freescale eSDHC registers only support 32-bit accesses, this patch ensures that all Freescale eSDHC register accesses are 32-bit. Signed-off-by: Xu lei <B33228@freescale.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26mmc: core: Put eMMC in Sleep mode before suspendBalaji T K1-2/+7
Put MMC to sleep if it supports SLEEP/AWAKE (CMD5) in the mmc suspend so that Vcc (NAND core) can be cut to minimize power consumption. eMMC put into SLEEP can respond to CMD0 or H/W reset or CMD5. Current implemention on resume from suspend relies on CMD0 in mmc_init_card to get out of SLEEP mode. Signed-off-by: Balaji T K <balajitk@ti.com> Acked-by: Venkatraman S <svenkatr@ti.com> Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-03 07:43:30 +0300