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path: root/drivers/mmc/host
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2011-03-15mmc: dw_mmc: support DDR modeJaehoon Chung2-1/+9
This patch adds DDR mode support to dw_mmc. If we set any bit in UHS_REG bit[16:31], the card of that slot is supported for DDR mode. For example, if UHS_REG[16] is set, card number 0 is DDR mode. 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>
2011-03-15mmc: via-sdmmc: Remove set-but-unused variable.Chris Ball1-3/+0
drivers/mmc/host/via-sdmmc.c: In function ‘via_reset_pcictrl’: drivers/mmc/host/via-sdmmc.c:805:8: warning: variable ‘addrbase’ set but not used [-Wunused-but-set-variable] Signed-off-by: Chris Ball <cjb@laptop.org> Cc: Harald Welte <HaraldWelte@viatech.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2011-03-15mmc: cb710: Return err value in cb710_wait_while_busy()Chris Ball1-1/+1
Fixes: drivers/mmc/host/cb710-mmc.c: In function ‘cb710_wait_while_busy’: drivers/mmc/host/cb710-mmc.c:182:6: warning: variable ‘err’ set but not used [-Wunused-but-set-variable] Signed-off-by: Chris Ball <cjb@laptop.org> Acked-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2011-03-15mmc: sdhci-pci: Remove set-but-unused variable.Chris Ball1-4/+0
drivers/mmc/host/sdhci-pci.c: In function ‘sdhci_pci_probe_slot’: drivers/mmc/host/sdhci-pci.c:913:18: warning: variable ‘addr’ set but not used [-Wunused-but-set-variable] Signed-off-by: Chris Ball <cjb@laptop.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de>
2011-03-15mmc: mxs-mmc: add mmc host driver for i.MX23/28Shawn Guo3-0/+884
This adds the mmc host driver for Freescale MXS-based SoC i.MX23/28. The driver calls into mxs-dma via generic dmaengine api for both pio and data transfer. Thanks Chris Ball for the indentation patch. Signed-off-by: Shawn Guo <shawn.guo@freescale.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sdhci-tegra: free irq on error and removeWolfram Sang1-1/+5
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: mxcmmc: use dmaengine APISascha Hauer1-77/+104
This switches the mxcmmc driver to use the dmaengine API. Unlike the old one this one is always present in the tree, even if no DMA is implemented, hence we can remove all the #ifdefs in from the driver. The driver automatically switches to PIO mode if no DMA support or no suitable channel is available. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: dw_mmc: support 8-bit buswidthJaehoon Chung1-0/+3
This patch adds support for 8-bit buswidth. dw_mmc can use 8-bit buswidth and set to CTYPE_8BIT in card-type register. 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>
2011-03-15mmc: tmio_mmc: use dmaengine helpers, drop submit checkLinus Walleij1-13/+4
Use the new dmaengine helper functions, and drop the error check on the returned cookier from the dmaengine - we recently established that this is really not allowed to fail. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: tmio_mmc: drop dma_sglen state variableLinus Walleij1-7/+2
This variable doesn't seem to be used for anything after the other patches so just drop it. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: tmio_mmc: unmap with the proper sglenLinus Walleij1-2/+2
According to the DMA-API you shall unmap the sglists with the same sglist length as passed into the mapping function, not the returned value from the mapping function. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: tmio_mmc: map DMA buffers on the DMA engine deviceLinus Walleij1-4/+6
As established for the MMCI, it is proper to map the DMA buffers on the DMA engine which is the one actually performing the DMA. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sh_mmcif: use dmaengine helpers, drop submit checkLinus Walleij1-16/+6
Use the new dmaengine helper functions, and drop the error check on the returned cookier from the dmaengine - we recently established that this is really not allowed to fail. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sh_mmcif: rename and retype activity variableLinus Walleij1-9/+9
The host_sglen is now actually used to keep track of whether DMA is active or not, so rename and retype it to bool. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sh_mmcif: unmap with the proper sglenLinus Walleij1-2/+2
According to the DMA-API you shall unmap the sglists with the same sglist length as passed into the mapping function, not the returned value from the mapping function. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sh_mmcif: map DMA buffers on the DMA engine deviceLinus Walleij1-4/+8
As established for the MMCI, it is proper to map the DMA buffers on the DMA engine which is the one actually performing the DMA. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: atmel-mci: use dmaengine helper functionsLinus Walleij1-3/+3
Use the new dmaengine helpers to make the code more readable. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: atmel-mci: conform to DMA-APILinus Walleij1-4/+3
Fixes the following: - It is perfectly legal for the dma_map_sg() to return fewer entries than were passed in. - Supply the returned numer of (possibly coalesced) entries to the device_pre_slave_sg() function. - Use the proper original sg_len when unmapping the sglist in the error path. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: atmel-mci: map DMA sglist on the DMA engineLinus Walleij1-3/+5
As established for the MMCI, it is proper to map the DMA buffers on the DMA engine which is the one actually performing the DMA. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sdhci: Add Ricoh e823 PCI IDManoj Iyer1-0/+8
Signed-off-by: Manoj Iyer <manoj.iyer@canonical.com> Cc: <stable@kernel.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: dw_mmc: Enable low-power mode for the card clock.Will Newton1-1/+2
Setting this bit in the clock enable register will stop the clock when the card is in the IDLE state. Signed-off-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: dw_mmc: Run card detect tasklet during slot initialisation.Will Newton1-0/+6
We need to run the card detect tasklet at the end of slot initialisation as it is possible that a card has been inserted prior to boot, so we don't see an insertion interrupt and now the card is sitting there inserted but with no power to it. Signed-off-by: Neil Jones <neil.jones@imgtec.com> Signed-off-by: Will Newton <will.newton@imgtec.com> Reviewed-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: mmc_mxc: Allow selection only for the correct platformsFabio Estevam1-1/+1
Currently MMC_MXC driver can be selected by all i.MX devices. Restrict its use only for the appropriate processors. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: tmio_mmc: Improve readability of the output of pr_debug_status()Simon Horman1-23/+27
Reviewed-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Simon Horman <horms@verge.net.au> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-15mmc: sdhci-s3c: Auto CMD12 supportKyungmin Park1-0/+3
Samsung SDHCI host controller supports the Auto CMD12. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-03-11Merge remote branches 'remotes/origin/pwrdm_clkdm_b_2.6.39', ↵Paul Walmsley2-11/+27
'remotes/origin/pwrdm_add_can_lose_context_fns_2.6.39', 'remotes/origin/omap_device_a_2.6.39', 'remotes/origin/mmc_a_2.6.39', 'remotes/origin/hwmod_b_2.6.39', 'remotes/origin/dmtimer_a_2.6.39', 'remotes/origin/pwrdm_clkdm_a_2.6.39', 'remotes/origin/clkdm_statdep_omap4_2.6.39', 'remotes/origin/clk_a_2.6.39', 'remotes/origin/clk_autoidle_a_2.6.39', 'remotes/origin/clk_autoidle_b_2.6.39', 'remotes/origin/clk_b_2.6.39', 'remotes/origin/clk_clkdm_a_2.6.39', 'remotes/origin/misc_a_2.6.39', 'remotes/origin/for_2.6.39/omap3_hwmod_data' and 'remotes/origin/wdtimer_a_2.6.39' into tmp-integration-2.6.39-20110310-024
2011-03-08of_mmc_spi: add card detect irq supportEsben Haabendal1-2/+24
Signed-off-by: Esben Haabendal <eha@doredevelopment.dk> Acked-by: Anton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-03-02MMC: omap_hsmmc: enable interface clock before calling mmc_host_enable()Paul Walmsley1-3/+3
The code path entered via mmc_host_enable() can include register accesses to the HSMMC IP block. For this to work, both the device interface clock and functional clock need to be enabled before mmc_host_enable() is called. However, omap_hsmmc_probe() calls mmc_host_enable() before enabling the device interface clock. Fix by calling mmc_host_enable() after the device interface clock is enabled. Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Madhusudhan Chikkature Rajashekar <madhu.cr@ti.com> Cc: Adrian Hunter <adrian.hunter@nokia.com> Cc: Kishore Kadiyala <kishore.kadiyala@ti.com> Cc: Tero Kristo <Tero.Kristo@nokia.com> Acked-by: Madhusudhan Chikkature Rajashekar <madhu.cr@ti.com>
2011-03-02OMAP: hsmmc: Rename the device and driverKishore Kadiyala1-1/+1
Modifying the device & driver name from "mmci-omap-hs" to "omap_hsmmc". Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Acked-by: Benoit Cousson<b-cousson@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-03-02OMAP: adapt hsmmc to hwmod frameworkKishore Kadiyala1-2/+2
OMAP2420 platform consists of mmc block as in omap1 and not the hsmmc block as present in omap2430, omap3, omap4 platforms. Removing all base address macro defines except keeping one for OMAP2420 and adapting only hsmmc device registration and driver to hwmod framework. Changes involves: 1) Remove controller reset in devices.c which is taken care of by hwmod framework. 2) Using omap-device layer to register device and utilizing data from hwmod data file for base address, dma channel number, Irq_number, device attribute. 3) Update the driver to use dev_attr to find whether controller supports dual volt cards Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Reviewed-by: Balaji T K <balajitk@ti.com> Cc: Benoit Cousson <b-cousson@ti.com> CC: Kevin Hilman <khilman@deeprootsystems.com> Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-02-28dt: Eliminate of_platform_{,un}register_driverGrant Likely1-6/+9
Final step to eliminate of_platform_bus_type. They're all just platform drivers now. v2: fix type in pasemi_nand.c (thanks to Stephen Rothwell) Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-02-23ARM: amba: make probe() functions take const id tablesRussell King1-1/+2
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>
2011-02-23Merge branch 'devicetree/next' into spi/nextGrant Likely1-4/+0
To pick up removal of #ifdef around .of_match_table
2011-02-22OMAP: hsmmc: Enable MMC4 and MMC5 on OMAP4 platformsKishore Kadiyala1-4/+20
OMAP4 supports up to 5 MMC controllers, but only 3 of these were initialized. MMC5 is used by wl12xx chip. So initialize MMC4 and MMC5. Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com> Signed-off-by: Panduranga Mallireddy <panduranga_mallireddy@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2011-02-16Merge branches 'devel-cleanup', 'devel-board', 'devel-early-init' and ↵Tony Lindgren1-1/+1
'devel-ti816x' into omap-for-linus
2011-02-04Merge commit 'v2.6.38-rc3' into devicetree/nextGrant Likely7-121/+89
2011-02-04ARM: mmci: add dmaengine-based DMA supportRussell King2-8/+287
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>
2011-02-04ARM: mmci: no need for separate host->data_xferedRussell King2-8/+3
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>
2011-02-04ARM: mmci: avoid unnecessary switch to data available PIO interruptsRussell King1-6/+7
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>
2011-02-04ARM: mmci: no need to call flush_dcache_page() with sg_miter APIRussell King1-19/+0
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>
2011-02-04ARM: mmci: avoid reporting too many completed bytes on fifo overrunRussell King1-6/+18
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>
2011-01-31ARM: mmci: round down the bytes transferred on errorRussell King1-3/+4
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>
2011-01-31ARM: mmci: complete the transaction on errorRussell King1-1/+1
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>
2011-01-28omap: Start using CONFIG_SOC_OMAPTony Lindgren1-1/+1
We want to have just CONFIG_ARCH_OMAP2, 3 and 4. The rest are nowadays just subcategories of these. Search and replace the following: ARCH_OMAP2420 SOC_OMAP2420 ARCH_OMAP2430 SOC_OMAP2430 ARCH_OMAP3430 SOC_OMAP3430 No functional changes. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Thomas Weber <weber@corscience.de> Acked-by: Sourav Poddar <sourav.poddar@ti.com>
2011-01-28ARM: 6642/1: mmci: calculate remaining bytes at error correctlyLinus Walleij1-2/+2
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>
2011-01-26mmc: bfin_sdh: fix alloc size for private dataSonic Zhang1-1/+1
The bfin_sdh driver allocates the wrong size for the private data in the mmc_host. The first parameter of mmc_alloc_host should be the size of the local driver struct rather than the common mmc_host. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: <stable@kernel.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-01-26mmc: sdhci-s3c: add platform_8bit_width() hookJaehoon Chung1-0/+36
We have 8-bit width support but is not a v3 controller. So we need platform_8bit_width() to support 8-bit buswidth. Also we need MMC_CAP_8_BIT_DATA, so we add it in platdata. This gets 8-bit support working again on s3c, after we previously disabled 8-bit by default on non-v3 controllers. 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>
2011-01-26mmc: jz4740: don't treat NULL clk as an errorJamie Iles1-2/+3
clk_get() returns a struct clk cookie to the driver and some platforms may return NULL if they only support a single clock. clk_get() has only failed if it returns a ERR_PTR() encoded pointer. Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2011-01-26mmc: mmci: don't read command response when invalidRussell King - ARM Linux1-5/+5
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>
2011-01-26mmc: ushc: Remove duplicate include of usb.hJesper Juhl1-1/+0
Including usb.h once is enough in drivers/mmc/host/ushc.c This removes the duplicate. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Chris Ball <cjb@laptop.org>
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