mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 12:21:37 +00:00
eed48556a7
Add binding documentation for spi-davinci module. [prakash.pm@ti.com: Follow DT naming convention for compatible property] Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com>
52 lines
1.4 KiB
Plaintext
52 lines
1.4 KiB
Plaintext
Davinci SPI controller device bindings
|
|
|
|
Required properties:
|
|
- #address-cells: number of cells required to define a chip select
|
|
address on the SPI bus. Should be set to 1.
|
|
- #size-cells: should be zero.
|
|
- compatible:
|
|
- "ti,dm6441-spi" for SPI used similar to that on DM644x SoC family
|
|
- "ti,da830-spi" for SPI used similar to that on DA8xx SoC family
|
|
- reg: Offset and length of SPI controller register space
|
|
- num-cs: Number of chip selects
|
|
- ti,davinci-spi-intr-line: interrupt line used to connect the SPI
|
|
IP to the interrupt controller within the SoC. Possible values
|
|
are 0 and 1. Manual says one of the two possible interrupt
|
|
lines can be tied to the interrupt controller. Set this
|
|
based on a specifc SoC configuration.
|
|
- interrupts: interrupt number mapped to CPU.
|
|
- clocks: spi clk phandle
|
|
|
|
Example of a NOR flash slave device (n25q032) connected to DaVinci
|
|
SPI controller device over the SPI bus.
|
|
|
|
spi0:spi@20BF0000 {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
compatible = "ti,dm6446-spi";
|
|
reg = <0x20BF0000 0x1000>;
|
|
num-cs = <4>;
|
|
ti,davinci-spi-intr-line = <0>;
|
|
interrupts = <338>;
|
|
clocks = <&clkspi>;
|
|
|
|
flash: n25q032@0 {
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
compatible = "st,m25p32";
|
|
spi-max-frequency = <25000000>;
|
|
reg = <0>;
|
|
|
|
partition@0 {
|
|
label = "u-boot-spl";
|
|
reg = <0x0 0x80000>;
|
|
read-only;
|
|
};
|
|
|
|
partition@1 {
|
|
label = "test";
|
|
reg = <0x80000 0x380000>;
|
|
};
|
|
};
|
|
};
|