@@ -6,6 +6,7 @@ Required properties:
- reg : Offset and length of the register set for the device
- interrupts : Should contain CSPI/eCSPI interrupt
- fsl,spi-num-chipselects : Contains the number of the chipselect
+- fsl,spi-dma-bits-per-word : Contains the number of bits per word transfered by DMA
- cs-gpios : Specifies the gpio pins to be used for chipselects.
- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
Documentation/devicetree/bindings/dma/dma.txt
@@ -20,6 +21,7 @@ ecspi@70010000 {
reg = <0x70010000 0x4000>;
interrupts = <36>;
fsl,spi-num-chipselects = <2>;
+ fsl,spi-dma-bits-per-word = <8>; /* 8 bits per word is the default value, can be 16 or 32 */
cs-gpios = <&gpio3 24 0>, /* GPIO3_24 */
<&gpio3 25 0>; /* GPIO3_25 */
dmas = <&sdma 3 7 1>, <&sdma 4 7 2>;
This patch add the possibility to set the number of bits per word transfered by DMA Signed-off-by: Aurelien BOUIN <a.bouin@gmail.com>