spi/fsl-dspi: Convert to use regmap and add big-endian support

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Freescale DSPI module will have two endianess in different platform,
but ARM is little endian. So when DSPI in big endian, core in little endian,
readl and writel can not adjust R/W register in this condition.
This patch will remove general readl/writel, and import regmap mechanism.
Data endian will be transfered in regmap APIs.

Documents: dspi add bool "big-endian" in dts node if DSPI module
work in big endian.

Signed-off-by: Chao Fu <b44548@freescale.com>
Reviewed-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

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Chao Fu 2014-02-12 15:29:05 +08:00 • committed by Mark Brown

parent 38dbfb59d1

commit 1acbdeb92c

3 changed files with 56 additions and 27 deletions

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2

Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt

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1

drivers/spi/Kconfig

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80

drivers/spi/spi-fsl-dspi.c

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