tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1NVIDIA Tegra114 SPI controller.
2
3Required properties:
4- compatible : should be "nvidia,tegra114-spi".
5- reg: Should contain SPI registers location and length.
6- interrupts: Should contain SPI interrupts.
7- clock-names : Must include the following entries:
8 - spi
9- resets : Must contain an entry for each entry in reset-names.
10 See ../reset/reset.txt for details.
11- reset-names : Must include the following entries:
12 - spi
13- dmas : Must contain an entry for each entry in clock-names.
14 See ../dma/dma.txt for details.
15- dma-names : Must include the following entries:
16 - rx
17 - tx
18- clocks : Must contain an entry for each entry in clock-names.
19 See ../clocks/clock-bindings.txt for details.
20
21Recommended properties:
22- spi-max-frequency: Definition as per
23 Documentation/devicetree/bindings/spi/spi-bus.txt
24Example:
25
26spi@7000d600 {
27 compatible = "nvidia,tegra114-spi";
28 reg = <0x7000d600 0x200>;
29 interrupts = <0 82 0x04>;
30 spi-max-frequency = <25000000>;
31 #address-cells = <1>;
32 #size-cells = <0>;
33 clocks = <&tegra_car 44>;
34 clock-names = "spi";
35 resets = <&tegra_car 44>;
36 reset-names = "spi";
37 dmas = <&apbdma 16>, <&apbdma 16>;
38 dma-names = "rx", "tx";
39 status = "disabled";
40};