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mtd: spi-nor: Add driver for Cadence Quad SPI Flash Controller

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Add support for the Cadence QSPI controller. This controller is
present in the Altera SoCFPGA SoCs and this driver has been tested
on the Cyclone V SoC.

Signed-off-by: Graham Moore <grmoore@opensource.altera.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Alan Tull <atull@opensource.altera.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Graham Moore <grmoore@opensource.altera.com>
Cc: Vignesh R <vigneshr@ti.com>
Cc: Yves Vandervennet <yvanderv@opensource.altera.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Graham Moore 2016-06-04 02:39:34 +02:00 committed by Brian Norris
parent b58439916b
commit 1406234105
3 changed files with 1311 additions and 0 deletions
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11
drivers/mtd/spi-nor/Kconfig
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@ -38,6 +38,17 @@ config SPI_ATMEL_QUADSPI
This driver does not support generic SPI. The implementation only
supports SPI NOR.
config SPI_CADENCE_QUADSPI
tristate "Cadence Quad SPI controller"
depends on OF && (ARM || COMPILE_TEST)
help
Enable support for the Cadence Quad SPI Flash controller.
Cadence QSPI is a specialized controller for connecting an SPI
Flash over 1/2/4-bit wide bus. Enable this option if you have a
device with a Cadence QSPI controller and want to access the
Flash as an MTD device.
config SPI_FSL_QUADSPI
tristate "Freescale Quad SPI controller"
depends on ARCH_MXC || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST

1
drivers/mtd/spi-nor/Makefile
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@ -1,5 +1,6 @@
obj-$(CONFIG_MTD_SPI_NOR) += spi-nor.o
obj-$(CONFIG_SPI_ATMEL_QUADSPI) += atmel-quadspi.o
obj-$(CONFIG_SPI_CADENCE_QUADSPI) += cadence-quadspi.o
obj-$(CONFIG_SPI_FSL_QUADSPI) += fsl-quadspi.o
obj-$(CONFIG_SPI_HISI_SFC) += hisi-sfc.o
obj-$(CONFIG_MTD_MT81xx_NOR) += mtk-quadspi.o

1299
drivers/mtd/spi-nor/cadence-quadspi.c Normal file
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