AuxXxilium/linux_dsm_epyc7002
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3fcb027d7f
linux_dsm_epyc7002/drivers/mmc/host
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Daniel Mack 3fcb027d7f ARM: MXC: mxcmmc: work around a bug in the SDHC busy line handling 
MX3 SoCs have a silicon bug which corrupts CRC calculation of
multi-block transfers when connected SDIO peripheral doesn't drive the
BUSY line as required by the specs.

One way to prevent this is to only allow 1-bit transfers.

Another way is playing tricks with the DMA engine, but this isn't
mainline yet. So for now, we live with the performance drawback of 1-bit
transfers until a nicer solution is found.

This patch introduces a new host controller callback 'init_card' which
is for now only called from mmc_sdio_init_card().

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Volker Ernst <volker.ernst@txtr.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Michał Mirosław <mirqus@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2010-04-14 09:18:07 +02:00
..
at91_mci.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
atmel-mci-regs.h atmel-mci: add MCI2 register definitions 2009-06-13 22:43:01 +02:00
atmel-mci.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
au1xmmc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
bfin_sdh.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
cb710-mmc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
cb710-mmc.h mmc: Driver for CB710/720 memory card reader (MMC part) 2009-06-13 22:42:58 +02:00
davinci_mmc.c davinci: MMC: add support for 8bit MMC cards 2010-03-06 11:26:36 -08:00
imxmmc.c imxmmc: Remove unnecessary semicolons 2009-07-31 12:28:46 +02:00
imxmmc.h imxmmc: use readl/writel 2008-12-16 14:58:17 +01:00
Kconfig mfd/mmc: SDHI Kconfig update 2010-03-07 22:17:32 +01:00
Makefile ricoh_mmc: port from driver to pci quirk 2010-03-06 11:26:36 -08:00
mmc_spi.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mmci.c ARM: 5940/2: ARM: MMCI: remove custom DBG macro and printk 2010-02-21 22:21:17 +00:00
mmci.h ARM: 5721/1: MMCI enable the use of a regulator 2009-09-22 20:49:05 +01:00
msm_sdcc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
msm_sdcc.h mmc: msm_sdccc: driver for HTC Dream 2009-09-23 07:39:32 -07:00
mvsdio.c mvsdio: fix handling of partial word at the end of PIO transfer 2009-07-20 16:46:34 -07:00
mvsdio.h mmc: SDIO driver for Marvell SoCs 2009-03-24 21:30:03 +01:00
mxcmmc.c ARM: MXC: mxcmmc: work around a bug in the SDHC busy line handling 2010-04-14 09:18:07 +02:00
of_mmc_spi.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
omap_hsmmc.c omap hsmmc: fix a bug in card remove scenario 2010-04-07 08:38:03 -07:00
omap.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pxamci.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pxamci.h [ARM] pxa: mmc: add 1st host controller support for pxa3xx 2008-01-26 15:07:53 +00:00
s3cmci.c s3cmci: s3cmci_card_present: Use no_detect to decide whether there is a card detect pin 2010-03-06 11:26:37 -08:00
s3cmci.h s3cmci: DMA fixes 2009-10-01 16:11:15 -07:00
sdhci-of-core.c sdhci-of: add support for the wii sdhci controller 2009-12-17 15:45:32 -08:00
sdhci-of-esdhc.c sdhci-of: reorganize driver to support additional hardware 2009-12-17 15:45:31 -08:00
sdhci-of-hlwd.c sdhci-of: add support for the wii sdhci controller 2009-12-17 15:45:32 -08:00
sdhci-of.h sdhci-of: add support for the wii sdhci controller 2009-12-17 15:45:32 -08:00
sdhci-pci.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sdhci-pltfm.c sdhci: platform driver for SDHCI 2009-06-13 22:42:59 +02:00
sdhci-s3c.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sdhci.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sdhci.h sdhci: protect header file against multi inclusion 2009-12-17 15:45:31 -08:00
sdricoh_cs.c Merge branch 'master' of ../mmc 2008-12-31 19:56:05 +01:00
tifm_sd.c mmc: struct device - replace bus_id with dev_name(), dev_set_name() 2008-11-08 21:37:46 +01:00
tmio_mmc.c tmio_mmc: Balance cell enable()/disable() calls 2010-03-07 22:17:27 +01:00
tmio_mmc.h tmio_mmc: Keep card-detect interrupts enabled 2010-03-07 22:17:25 +01:00
via-sdmmc.c mmc: Add new via-sdmmc host controller driver 2009-06-21 21:00:59 +02:00
wbsd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
wbsd.h mmc: update header file paths 2007-07-26 01:53:31 +02:00