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| author | Tom Rini <trini@ti.com> | 2014-08-05 17:16:16 -0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2014-08-06 08:38:19 -0400 |
| commit | 336450f5fc1c0d6eb0d95c536dadf0cc07466a4d (patch) | |
| tree | 40e03d354dd408f74ff91beb687e5c08768aef60 /doc | |
| parent | dcdb61a084bd3840d0987a5d01ae506c11efca1b (diff) | |
| parent | f659b57361c4a351ef2a5fc23b9197428e2e67f0 (diff) | |
| download | u-boot-336450f5fc1c0d6eb0d95c536dadf0cc07466a4d.tar.gz | |
Merge branch 'master' of git://git.denx.de/u-boot-spi
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-tree-bindings/spi/spi-bus.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/spi/spi-bus.txt b/doc/device-tree-bindings/spi/spi-bus.txt index 800dafe5b0..5c8720a820 100644 --- a/doc/device-tree-bindings/spi/spi-bus.txt +++ b/doc/device-tree-bindings/spi/spi-bus.txt @@ -59,6 +59,8 @@ contain the following properties. used for MOSI. Defaults to 1 if not present. - spi-rx-bus-width - (optional) The bus width(number of data wires) that used for MISO. Defaults to 1 if not present. +- spi-half-duplex - (optional) Indicates that the SPI bus should wait for + a header byte before reading data from the slave. Some SPI controllers and devices support Dual and Quad SPI transfer mode. It allows data in SPI system transfered in 2 wires(DUAL) or 4 wires(QUAD). |