mirror of
https://github.com/Fishwaldo/u-boot.git
synced 2025-03-21 06:31:31 +00:00
dt-bindings: spi: Add andestech atcspi200 spi binding doc
Add a document to describe Andestech atcspi200 spi and binding information. Signed-off-by: Rick Chen <rick@andestech.com>
This commit is contained in:
parent
6720e4ae7a
commit
872cd42e70
1 changed files with 37 additions and 0 deletions
37
doc/device-tree-bindings/spi/spi-atcspi200.txt
Normal file
37
doc/device-tree-bindings/spi/spi-atcspi200.txt
Normal file
|
@ -0,0 +1,37 @@
|
||||||
|
Andestech ATCSPI200 SPI controller Device Tree Bindings
|
||||||
|
-------------------------------------------------------
|
||||||
|
ATCSPI200 is a Serial Peripheral Interface (SPI) controller
|
||||||
|
which serves as a SPI master or a SPI slave.
|
||||||
|
|
||||||
|
It is often be embedded in AE3XX and AE250 platforms.
|
||||||
|
|
||||||
|
Required properties:
|
||||||
|
- compatible: has to be "andestech,atcspi200".
|
||||||
|
- reg: Base address and size of the controllers memory area.
|
||||||
|
- #address-cells: <1>, as required by generic SPI binding.
|
||||||
|
- #size-cells: <0>, also as required by generic SPI binding.
|
||||||
|
- interrupts: Property with a value describing the interrupt number.
|
||||||
|
- clocks: Clock phandles (see clock bindings for details).
|
||||||
|
- spi-max-frequency: Maximum SPI clocking speed of device in Hz.
|
||||||
|
|
||||||
|
Optional properties:
|
||||||
|
- num-cs: Number of chip selects used.
|
||||||
|
|
||||||
|
Example:
|
||||||
|
|
||||||
|
spi: spi@f0b00000 {
|
||||||
|
compatible = "andestech,atcspi200";
|
||||||
|
reg = <0xf0b00000 0x1000>;
|
||||||
|
#address-cells = <1>;
|
||||||
|
#size-cells = <0>;
|
||||||
|
num-cs = <1>;
|
||||||
|
clocks = <&spiclk>;
|
||||||
|
interrupts = <3 4>;
|
||||||
|
flash@0 {
|
||||||
|
compatible = "spi-flash";
|
||||||
|
spi-max-frequency = <50000000>;
|
||||||
|
reg = <0>;
|
||||||
|
spi-cpol;
|
||||||
|
spi-cpha;
|
||||||
|
};
|
||||||
|
};
|
Loading…
Add table
Reference in a new issue