48 lines
1.3 KiB
Plaintext
48 lines
1.3 KiB
Plaintext
|
OMAP2+ McSPI device
|
||
|
|
|
||
|
|
Required properties:
|
||
|
|
- compatible :
|
||
|
|
- "ti,omap2-mcspi" for OMAP2 & OMAP3.
|
||
|
|
- "ti,omap4-mcspi" for OMAP4+.
|
||
|
|
- ti,spi-num-cs : Number of chipselect supported by the instance.
|
||
|
|
- ti,hwmods: Name of the hwmod associated to the McSPI
|
||
|
|
- ti,pindir-d0-out-d1-in: Select the D0 pin as output and D1 as
|
||
|
|
input. The default is D0 as input and
|
||
|
|
D1 as output.
|
||
|
|
|
||
|
|
Optional properties:
|
||
|
|
- dmas: List of DMA specifiers with the controller specific format
|
||
|
|
as described in the generic DMA client binding. A tx and rx
|
||
|
|
specifier is required for each chip select.
|
||
|
|
- dma-names: List of DMA request names. These strings correspond
|
||
|
|
1:1 with the DMA specifiers listed in dmas. The string naming
|
||
|
|
is to be "rxN" and "txN" for RX and TX requests,
|
||
|
|
respectively, where N equals the chip select number.
|
||
|
|
|
||
|
|
Examples:
|
||
|
|
|
||
|
|
[hwmod populated DMA resources]
|
||
|
|
|
||
|
|
mcspi1: mcspi@1 {
|
||
|
|
#address-cells = <1>;
|
||
|
|
#size-cells = <0>;
|
||
|
|
compatible = "ti,omap4-mcspi";
|
||
|
|
ti,hwmods = "mcspi1";
|
||
|
|
ti,spi-num-cs = <4>;
|
||
|
|
};
|
||
|
|
|
||
|
|
[generic DMA request binding]
|
||
|
|
|
||
|
|
mcspi1: mcspi@1 {
|
||
|
|
#address-cells = <1>;
|
||
|
|
#size-cells = <0>;
|
||
|
|
compatible = "ti,omap4-mcspi";
|
||
|
|
ti,hwmods = "mcspi1";
|
||
|
|
ti,spi-num-cs = <2>;
|
||
|
|
dmas = <&edma 42
|
||
|
|
&edma 43
|
||
|
|
&edma 44
|
||
|
|
&edma 45>;
|
||
|
|
dma-names = "tx0", "rx0", "tx1", "rx1";
|
||
|
|
};
|