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authorRich Felker <dalias@libc.org>2016-08-04 04:30:37 +0000
committerMark Brown <broonie@kernel.org>2016-08-08 11:56:32 +0100
commit2cb1b3b3ac0ac86b70eb1ecd65585c0d024fe273 (patch)
tree6ff59ce2d624166ac780d695f299613fc6690592 /Documentation
parent7ed66c6d8841f215c4371b72206fdecfbcd7a396 (diff)
spi: add driver for J-Core SPI controller
The J-Core "spi2" device is a PIO-based SPI master controller. It differs from "bitbang" devices in that that it's clocked in hardware rather than via soft clock modulation over gpio, and performs byte-at-a-time transfers between the cpu and SPI controller. This driver will be extended to support future versions of the J-Core SPI controller with DMA transfers when they become available. Signed-off-by: Rich Felker <dalias@libc.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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