spi: at91-usart: Add driver for at91-usart as SPI

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This is the driver for at91-usart in spi mode. The USART IP can be configured
to work in many modes and one of them is SPI.

The driver was tested on sama5d3-xplained and sama5d4-xplained boards with
enc28j60 ethernet controller as slave.

Signed-off-by: Radu Pirea <radu.pirea@microchip.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviwed-by: Mark Brown <broonie@kernel.org>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

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Radu Pirea 2018-07-13 19:47:35 +03:00 • committed by Lee Jones

parent 937c0a26ac

commit e1892546ff

3 changed files with 441 additions and 0 deletions

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8

drivers/spi/Kconfig

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1

drivers/spi/Makefile

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432

drivers/spi/spi-at91-usart.c

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