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| author | Stefano Babic <sbabic@denx.de> | 2014-08-11 10:21:03 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2014-08-11 10:21:03 +0200 |
| commit | e82abaeb7f2a0833fccf90460c48b9f2100258f8 (patch) | |
| tree | de701f5c90b7373966412d566b5c00d3837954bc /doc/device-tree-bindings/spi | |
| parent | f93f21906e374d46c6abfbdf4eb9cb1ab51b6384 (diff) | |
| parent | 1899fac925eda817e12234aef3d01d354788662e (diff) | |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Conflicts:
boards.cfg
Signed-off-by: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'doc/device-tree-bindings/spi')
| -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). |