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3c583f70a8
linux/drivers/mmc/host
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Andrew Lunn 3c583f70a8 mmc: mvsdio: Work around broken TX DMA 
In order to use the mvsdio driver for sdio, it has been necessary to
use a module parameter to disable DMA so to force PIO is used. It is
then possible to use wireless LAN devices like mwifiex found on
topkick and mirabox. However, accessing an MMC SD card does work with
DMA.

Investigation has shown that MMC block device accesses are always
aligned to 64 byte boundaries, where as transfers from mwifiex are
rarely more than word aligned. It has also been determined that card
to host transfers work with DMA for SDIO devices, but host to card
transfers with DMA have problems.

This patch extends the current checks for buffers which are not word
aligned or multiple of words. All host to card transfers which are not
64 byte aligned are now also performed via PIO. This should not affect
the performance of SD cards, but allow sdio devices to work out of the
box, and they are likely to be more efficient since DMA will be used
for card to host transfers.

Tested on mirabox for wifi via mwifiex
Tested on 370 RD for file systems on an SD card.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-11-26 14:31:00 +01:00
..
android-goldfish.c
atmel-mci-regs.h
atmel-mci.c mmc: atmel-mci: adopt pinctrl support 2014-11-26 14:30:52 +01:00
au1xmmc.c mmc: au1xmmc: fix error return code in au1xmmc_probe() 2014-09-09 13:59:01 +02:00
bfin_sdh.c mmc: bfin_sdh: Move away from using deprecated APIs 2013-10-30 20:26:36 -04:00
cb710-mmc.c mmc: cb710: Move away from using deprecated APIs 2013-10-30 20:26:37 -04:00
cb710-mmc.h
davinci_mmc.c mmc: davinci: Remove redundant of_match_ptr 2014-02-25 15:42:55 -05:00
dw_mmc-exynos.c mmc: dw_mmc: exynos: Add support for exynos7 2014-11-26 14:30:57 +01:00
dw_mmc-k3.c mmc: dw_mmc: fix possible build error 2014-03-03 14:00:56 -05:00
dw_mmc-pci.c mmc: dw_mmc-pci: Remove superflous #else condition on CONFIG_PM_SLEEP 2014-09-09 13:59:05 +02:00
dw_mmc-pltfm.c mmc: dw_mmc: move rockchip related code to a separate file 2014-09-09 13:59:16 +02:00
dw_mmc-pltfm.h
dw_mmc-rockchip.c mmc: dw_mmc: rockchip: Don't recalc the clock when it goes off 2014-11-10 12:40:36 +01:00
dw_mmc.c mmc: dw_mmc: Add IDMAC 64-bit address mode support 2014-11-26 14:30:50 +01:00
dw_mmc.h mmc: dw_mmc: Add IDMAC 64-bit address mode support 2014-11-26 14:30:50 +01:00
jz4740_mmc.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
Kconfig mmc: dw_mmc: add support for ARM64 2014-11-26 14:30:59 +01:00
Makefile mmc: add Toshiba PCI SD controller driver 2014-11-26 14:30:58 +01:00
mmc_spi.c mmc: don't request CD IRQ until mmc_start_host() 2014-09-23 09:01:36 +02:00
mmci_qcom_dml.c mmc: mmci: Add qcom dml support to the driver. 2014-09-09 13:58:46 +02:00
mmci_qcom_dml.h mmc: mmci: Add qcom dml support to the driver. 2014-09-09 13:58:46 +02:00
mmci.c mmc: mmci: fix mmci_post_request 2014-11-10 12:40:29 +01:00
mmci.h mmc: mmci: Add Qcom specific rx_fifocnt logic. 2014-07-09 11:25:57 +02:00
moxart-mmc.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
msm_sdcc.c mmc: msm_sdcc: Use platform_set|get_drvdata 2014-11-10 12:40:34 +01:00
msm_sdcc.h
mvsdio.c mmc: mvsdio: Work around broken TX DMA 2014-11-26 14:31:00 +01:00
mvsdio.h
mxcmmc.c mmc: mxcmmc: fix the default value for available voltages into mxcmci_probe 2014-11-10 12:40:25 +01:00
mxs-mmc.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
of_mmc_spi.c
omap_hsmmc.c mmc: omap_hsmmc: remove unused slot_id parameter 2014-11-26 14:30:56 +01:00
omap.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
pxamci.c mmc: pxamci: prepare and unprepare the clocks 2014-09-09 13:59:24 +02:00
pxamci.h
rtsx_pci_sdmmc.c mmc: rtsx_pci: Set power related cap2 macros 2014-09-24 11:20:16 +02:00
rtsx_usb_sdmmc.c mmc: rtsx_pci: Set power related cap2 macros 2014-09-24 11:20:16 +02:00
s3cmci.c mmc: Convert pr_warning to pr_warn 2014-09-24 10:13:09 +02:00
s3cmci.h mmc: s3cmci: port DMA code to dmaengine API 2014-07-09 11:26:13 +02:00
sdhci-acpi.c mmc: sdhci-acpi: Add 64-bit DMA support 2014-11-10 12:40:53 +01:00
sdhci-bcm2835.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
sdhci-bcm-kona.c mmc, sdhci, bcm-kona, LLVMLinux: Remove use of __initconst 2014-10-03 14:33:46 +02:00
sdhci-cns3xxx.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
sdhci-dove.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
sdhci-esdhc-imx.c mmc: sdhci-esdhc-imx: don't exit in case of no pinctrl states 2014-11-10 12:40:26 +01:00
sdhci-esdhc.h mmc: sdhci: convert sdhci_set_clock() into a library function 2014-05-22 07:26:32 -04:00
sdhci-msm.c mmc: Consolidate emmc tuning blocks 2014-09-23 09:13:19 +02:00
sdhci-of-arasan.c mmc: sdhci-of-arasan: Omit superfluous error messages 2014-11-10 12:40:46 +01:00
sdhci-of-esdhc.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
sdhci-of-hlwd.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
sdhci-pci-data.c
sdhci-pci-o2micro.c mmc: sdhci-pci-o2micro: Fix Dell E5440 issue 2014-11-10 12:40:25 +01:00
sdhci-pci-o2micro.h mmc: sdhci-pci-o2micro: Add SeaBird SeaEagle SD3 support 2014-05-22 08:40:44 -04:00
sdhci-pci.c mmc: sdhci-pci: enable sdhci doesn't support hs200 quirk for AMD sdhci 2014-11-26 14:30:45 +01:00
sdhci-pci.h mmc: sdhci-pci: Add Bay Trail and Braswell SD card detect 2014-10-03 14:24:52 +02:00
sdhci-pltfm.c mmc: sdhci-pltfm: Do not use parent as the host's device 2014-09-09 13:58:58 +02:00
sdhci-pltfm.h mmc: sdhci-pltfm: export pltfm suspend/resume api 2014-01-13 12:48:06 -05:00
sdhci-pxav2.c mmc: sdhci-pxav2: Drop unused struct sdhci_pxa 2014-11-10 12:40:30 +01:00
sdhci-pxav3.c mmc: sdhci-pxav3: Get optional core clock 2014-11-10 12:40:47 +01:00
sdhci-s3c-regs.h
sdhci-s3c.c mmc: sdhci-s3c: Check if clk_set_rate() succeeds 2014-11-10 12:40:55 +01:00
sdhci-sirf.c mmc: don't request CD IRQ until mmc_start_host() 2014-09-23 09:01:36 +02:00
sdhci-spear.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
sdhci-st.c mmc: sdhci-st: Intial support for ST SDHCI controller 2014-07-10 09:11:18 +02:00
sdhci-tegra.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
sdhci.c mmc: sdhci: Add HS400 support to SDHCI driver 2014-11-26 14:30:52 +01:00
sdhci.h mmc: sdhci: Add HS400 support to SDHCI driver 2014-11-26 14:30:52 +01:00
sdricoh_cs.c mmc: sdricoh_cs: Move away from using deprecated APIs 2013-10-30 20:28:32 -04:00
sh_mmcif.c mmc: remove .owner field for drivers using module_platform_driver 2014-09-09 13:59:04 +02:00
sh_mobile_sdhi.c mmc: use .multi_io_quirk on sh_mobile 2014-09-09 14:15:42 +02:00
sunxi-mmc.c mmc: sunxi: Remove unused includes of linux/clk-private.h 2014-11-10 12:40:29 +01:00
tifm_sd.c mmc: Convert pr_warning to pr_warn 2014-09-24 10:13:09 +02:00
tmio_mmc_dma.c mmc: tmio: remove Renesas specific #ifdef 2014-09-09 13:59:15 +02:00
tmio_mmc_pio.c mmc: don't request CD IRQ until mmc_start_host() 2014-09-23 09:01:36 +02:00
tmio_mmc.c mmc: tmio_mmc: Fixup system PM suspend lock-up 2014-09-09 13:59:12 +02:00
tmio_mmc.h mmc: tmio: Remove library functions for system PM 2014-09-09 13:59:12 +02:00
toshsd.c mmc: add Toshiba PCI SD controller driver 2014-11-26 14:30:58 +01:00
toshsd.h mmc: add Toshiba PCI SD controller driver 2014-11-26 14:30:58 +01:00
usdhi6rol0.c mmc: usdhi6rol0: fix compiler warnings 2014-06-12 10:38:50 +02:00
ushc.c mmc: ushc: Fix incorrect parameter in sizeof 2014-02-25 15:42:20 -05:00
via-sdmmc.c mmc: via-sdmmc: Move away from using deprecated APIs 2013-10-30 20:28:36 -04:00
vub300.c mmc: vub300: Move away from using deprecated APIs 2013-10-30 20:26:43 -04:00
wbsd.c mmc: Convert pr_warning to pr_warn 2014-09-24 10:13:09 +02:00
wbsd.h
wmt-sdmmc.c mmc: wmt-sdmmc: Remove deprecated IRQF_DISABLED 2014-07-09 11:26:08 +02:00