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path: root/drivers/spi/atmel-quadspi.c
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2019-02-06spi: atmel-quadspi: cache MR value to avoid a write accessTudor Ambarus
Set the controller by default in Serial Memory Mode (SMM) at probe. Cache Mode Register (MR) value to avoid write access when setting the controller in serial memory mode at exec_op(). Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-07spi: Add QuadSPI driver for Atmel SAMA5D2Piotr Bugalski
Kernel contains QSPI driver strongly tied to MTD and nor-flash memory. New spi-mem interface allows usage also other memory types, especially much larger NAND with SPI interface. This driver works as SPI controller and is not related to MTD, however can work with NAND-flash or other peripherals using spi-mem interface. Suggested-by: Boris Brezillon <boris.brezillon@bootlin.com> Signed-off-by: Piotr Bugalski <bugalski.piotr@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>