Rajeshwari Shinde c4a796329d spi: exynos: Support word transfers ...

Since SPI register access is so expensive, it is worth transferring data
a word at a time if we can. This complicates the driver unfortunately.

Use the byte-swapping feature to avoid having to convert to/from big
endian in software.

This change increases speed from about 2MB/s to about 4.5MB/s.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Rajeshwari S Shinde <rajeshwari.s@samsung.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>

2013-10-08 18:18:12 +05:30

..

altera_spi.c

spi: Use spi_alloc_slave() in each SPI driver

2013-03-19 08:45:36 -07:00

andes_spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

andes_spi.h

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

armada100_spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

atmel_dataflash_spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

atmel_spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

atmel_spi.h

spi: atmel_spi: using ip version to check whether has wdrbt

2013-05-12 16:36:11 +02:00

bfin_spi6xx.c

spi: Use spi_alloc_slave() in each SPI driver

2013-03-19 08:45:36 -07:00

bfin_spi.c

spi: bfin_spi: Use DIV_ROUND_UP instead of open-coded

2013-07-31 16:56:04 +08:00

cf_qspi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

cf_spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

davinci_spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

davinci_spi.h

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

exynos_spi.c

spi: exynos: Support word transfers

2013-10-08 18:18:12 +05:30

fdt_spi.c

tegra114: add SPI driver

2013-03-25 09:56:07 -07:00

fsl_espi.c

powerpc: Fix CamelCase checkpatch warnings

2013-08-20 09:57:51 -07:00

ich.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

ich.h

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

kirkwood_spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

Makefile

spi: add TI QSPI driver

2013-10-07 17:55:51 +05:30

mpc8xxx_spi.c

spi: mpc8xxx_spi: Use DIV_ROUND_UP instead of open-coded

2013-08-06 23:58:24 +05:30

mpc52xx_spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

mxc_spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

mxs_spi.c

spi: mxs_spi: Configure chipselect after block reset

2013-08-27 19:39:39 +05:30

oc_tiny_spi.c

spi: Use spi_alloc_slave() in each SPI driver

2013-03-19 08:45:36 -07:00

omap3_spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

omap3_spi.h

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

sh_spi.c

spi: Use spi_alloc_slave() in each SPI driver

2013-03-19 08:45:36 -07:00

sh_spi.h

sh_spi: Add 4 chip select signals supporting

2012-03-26 10:09:31 +09:00

soft_spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

spi.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

tegra20_sflash.c

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24 09:44:38 -04:00

tegra20_slink.c

Merge branch 'u-boot/master' into 'u-boot-arm/master'

2013-03-28 18:50:01 +01:00

tegra114_spi.c

spi: tegra114_spi: Convert to use spi_alloc_slave()

2013-06-13 22:55:24 +05:30

ti_qspi.c

spi: add TI QSPI driver

2013-10-07 17:55:51 +05:30

xilinx_spi.c

spi: Use spi_alloc_slave() in each SPI driver

2013-03-19 08:45:36 -07:00

xilinx_spi.h

spi: xilinx_spi: Perform software reset during slave setup

2013-02-04 12:09:49 +01:00

zynq_spi.c

spi: Add zynq spi controller driver

2013-08-07 01:09:47 +05:30