Commit fdb3c18d authored by David Brownell's avatar David Brownell Committed by Linus Torvalds

[PATCH] SPI controller driver for OMAP Microwire

This adds a SPI driver for the Microwire controller on OMAP1 chips.  This
driver has been used in the Linux-OMAP tree for some time now, including
with some of those displays using standardized 9-bit commands followed by
data with 8-bit words.

Microwire only supports half duplex transfers, but that's all that most SPI
protocols need.  When full duplex, or higher speeds, are needed there are
several other controllers that can be used on OMAP.

[akpm@osdl.org: cleanups]
Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: default avatarImre Deak <imre.deak@solidboot.com>
Signed-off-by: default avatarJuha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 85abfaa7
...@@ -87,6 +87,13 @@ config SPI_MPC83xx ...@@ -87,6 +87,13 @@ config SPI_MPC83xx
family of PowerPC processors. The MPC83xx uses a simple set of shift family of PowerPC processors. The MPC83xx uses a simple set of shift
registers for data (opposed to the CPM based descriptor model). registers for data (opposed to the CPM based descriptor model).
config SPI_OMAP_UWIRE
tristate "OMAP1 MicroWire"
depends on SPI_MASTER && ARCH_OMAP1
select SPI_BITBANG
help
This hooks up to the MicroWire controller on OMAP1 chips.
config SPI_PXA2XX config SPI_PXA2XX
tristate "PXA2xx SSP SPI master" tristate "PXA2xx SSP SPI master"
depends on SPI_MASTER && ARCH_PXA && EXPERIMENTAL depends on SPI_MASTER && ARCH_PXA && EXPERIMENTAL
......
...@@ -14,6 +14,7 @@ obj-$(CONFIG_SPI_MASTER) += spi.o ...@@ -14,6 +14,7 @@ obj-$(CONFIG_SPI_MASTER) += spi.o
obj-$(CONFIG_SPI_BITBANG) += spi_bitbang.o obj-$(CONFIG_SPI_BITBANG) += spi_bitbang.o
obj-$(CONFIG_SPI_BUTTERFLY) += spi_butterfly.o obj-$(CONFIG_SPI_BUTTERFLY) += spi_butterfly.o
obj-$(CONFIG_SPI_PXA2XX) += pxa2xx_spi.o obj-$(CONFIG_SPI_PXA2XX) += pxa2xx_spi.o
obj-$(CONFIG_SPI_OMAP_UWIRE) += omap_uwire.o
obj-$(CONFIG_SPI_MPC83xx) += spi_mpc83xx.o obj-$(CONFIG_SPI_MPC83xx) += spi_mpc83xx.o
obj-$(CONFIG_SPI_S3C24XX_GPIO) += spi_s3c24xx_gpio.o obj-$(CONFIG_SPI_S3C24XX_GPIO) += spi_s3c24xx_gpio.o
obj-$(CONFIG_SPI_S3C24XX) += spi_s3c24xx.o obj-$(CONFIG_SPI_S3C24XX) += spi_s3c24xx.o
......
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