spi: Add a driver for the Freescale/NXP QuadSPI controller

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This driver is derived from the SPI NOR driver at
mtd/spi-nor/fsl-quadspi.c. It uses the new SPI memory interface
of the SPI framework to issue flash memory operations to up to
four connected flash chips (2 buses with 2 CS each).

The controller does not support generic SPI messages.

This patch also disables the build of the "old" driver and reuses
its Kconfig option CONFIG_SPI_FSL_QUADSPI to replace it.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Acked-by: Han Xu <han.xu@nxp.com>
Reviewed-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
Tested-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
Tested-by: Han Xu <han.xu@nxp.com>
Reviewed-by: Boris Brezillon <bbrezillon@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

...

This commit is contained in:

Frieder Schrempf 2019-01-07 09:29:47 +00:00 • committed by Mark Brown

parent bfeffd1552

commit 84d043185d

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5 changed files with 978 additions and 10 deletions

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9

drivers/mtd/spi-nor/Kconfig

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1

drivers/mtd/spi-nor/Makefile

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11

drivers/spi/Kconfig

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1

drivers/spi/Makefile

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966

drivers/spi/spi-fsl-qspi.c

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