Documentation/devicetree/bindings/spi/brcm,bcm2835-aux-spi.yaml


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/spi/brcm,bcm2835-aux-spi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Broadcom BCM2835 Auxiliary SPI1/2 Controller

maintainers:
  - Karan Sanghavi <karansanghvi98@gmail.com>

description:
  The BCM2835 contains two forms of SPI master controller. One is known simply
  as SPI0, and the other as the "Universal SPI Master," which is part of the
  auxiliary block. This binding applies to the SPI1 and SPI2 auxiliary
  controllers.

allOf:
  - $ref: spi-controller.yaml#

properties:
  compatible:
    enum:
      - brcm,bcm2835-aux-spi

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

required:
  - compatible
  - reg
  - interrupts
  - clocks

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/bcm2835-aux.h>
    spi@7e215080 {
        compatible = "brcm,bcm2835-aux-spi";
        reg = <0x7e215080 0x40>;
        interrupts = <1 29>;
        clocks = <&aux_clocks BCM2835_AUX_CLOCK_SPI1>;
        #address-cells = <1>;
        #size-cells = <0>;
    };