- 17 Mar, 2011 12 commits
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Jaehoon Chung authored
This patch adds support for power regulators. 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>
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Jaehoon Chung authored
This patch is related to re-init processing on suspend/resume. When card is resuming, some register is reset. If card is removable, maybe controller should be rescan for card. But if assume card is non-removable, need to restore the old value at registers. We store the value of FIFOTH at probe time and then restore it in dw_mci_resume(). Signed-off-by:
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Jaehoon Chung authored
This patch adds quirks and capabilities to platdata. Some cards don't use the CDn pin; in that case, we assume the card's inserted. Some boards need other capabilities. So, we add capabilities in the board's platdata. Signed-off-by:
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Guennadi Liakhovetski authored
Currently kunmap_atomic() doesn't take into account the offset, used with kmap_atomic(). On platforms, where kunmap_atomic() is not a NOP, this will lead to problems, when offset != 0. Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by:
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Ulf Hansson authored
At power off, reset OCR mask to be the highest possible voltage supported for the current mmc host. This solves the re-initialization during the power up sequence. The voltage may have been decreased due to the card accepts a lower voltage than the voltage used during the initialization sequence. We need to reset the voltage to by the host highest possible value since according to specification the initialization must always be done at high voltage. Reviewed-by:
Jonas Aberg <jonas.aberg@stericsson.com> Signed-off-by:
Ulf Hansson <ulf.hansson@stericsson.com> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Ulf Hansson authored
When using mmc_try_claim_host the corresponding release function is mmc_do_release_host, which then also must be exported. Reviewed-by:
Sebastian Rasmussen <sebastian.rasmussen@stericsson.com> Signed-off-by:
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Stefan Nilsson XK authored
During redetection of a SDIO card, a request for a new card RCA was submitted to the card, but was then overwritten by the old RCA. This caused the card to be deselected instead of selected when using the incorrect RCA. This bug's been present since the "oldcard" handling was introduced in 2.6.32. Signed-off-by:
Stefan Nilsson XK <stefan.xk.nilsson@stericsson.com> Reviewed-by:
Pawel Wieczorkiewicz <pawel.wieczorkiewicz@stericsson.com> Signed-off-by:
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Chris Ball authored
count is only ever used by assigning to old_len if count == 0, and then old_len isn't ever used at all. So, both are redundant. Fixes: drivers/mmc/host/dw_mmc.c: In function ‘dw_mci_read_data_pio’: drivers/mmc/host/dw_mmc.c:1034:32: warning: variable ‘old_len’ set but not used [-Wunused-but-set-variable] Signed-off-by:
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Wolfram Sang authored
Signed-off-by:
Wolfram Sang <w.sang@pengutronix.de> Tested-by:
Marc Reilly <marc@cpdesign.com.au> Tested-by:
Eric Benard <eric@eukrea.com> Signed-off-by:
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Wolfram Sang authored
It can be worked around using a GPIO which will be done for i.MX later. Signed-off-by:
Anton Vorontsov <cbouatmailru@gmail.com> Tested-by:
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Wolfram Sang authored
Signed-off-by:
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Linus Walleij authored
dma_unmap_sg() already flushes the cache, I don't get what this code is doing here. Signed-off-by:
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- 16 Mar, 2011 3 commits
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Guennadi Liakhovetski authored
To support MMC aggressive clock gating the driver has to stop the interface clock when the .set_ios() method is called with .clock == 0. Signed-off-by:
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Philip Rakity authored
Some TOSHIBA MMC cards only support sector addressing even though the size is < 2GB. According to JEDEC Spec JESD84-A441-1 the ocr register (bits 30, 29) determine byte/sector mode. Use them. Signed-off-by:
Philip Rakity <prakity@marvell.com> Signed-off-by:
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Philip Rakity authored
sdio_reset sends a CMD52 to reset the sdio card. This is highly recommended for sdio cards being reinitialized. Since we do not know if the card is being reinitialized we just send the command. SD/eMMC cards are supposed to ignore the CMD before the CMD0. Document why we are doing this. Signed-off-by:
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- 15 Mar, 2011 25 commits
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Jaehoon Chung authored
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:
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Chris Ball authored
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:
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Chris Ball authored
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:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Acked-by:
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Chris Ball authored
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:
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Shawn Guo authored
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:
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Wolfram Sang authored
Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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Sascha Hauer authored
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:
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Jaehoon Chung authored
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:
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Jaehoon Chung authored
If we need some quirks, maybe add quirks in future But now, quirks value set to integer..later we should be confused.. So I think that need bit-shift control. And If we need not any quirks, we didn't set anything.. (Need not DW_MCI_QUIRK_NONE) Signed-off-by:
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Linus Walleij authored
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:
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Linus Walleij authored
This variable doesn't seem to be used for anything after the other patches so just drop it. Signed-off-by:
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Linus Walleij authored
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:
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Linus Walleij authored
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:
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Linus Walleij authored
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:
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Linus Walleij authored
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:
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Linus Walleij authored
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:
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Linus Walleij authored
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:
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Linus Walleij authored
Use the new dmaengine helpers to make the code more readable. Signed-off-by:
Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by:
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Linus Walleij authored
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:
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Linus Walleij authored
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:
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Manoj Iyer authored
Signed-off-by:
Manoj Iyer <manoj.iyer@canonical.com> Cc: <stable@kernel.org> Signed-off-by:
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Mark Brown authored
So we know the implementation and prototypes agree with each other. Signed-off-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Reviewed-by:
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Will Newton authored
The test file is created under debugfs, not sysfs. Also remove the unnecessary default n. Signed-off-by:
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Will Newton authored
Setting this bit in the clock enable register will stop the clock when the card is in the IDLE state. Signed-off-by:
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Will Newton authored
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:
Matt Fleming <matt@console-pimps.org> Signed-off-by:
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