xref: /freebsd/sys/contrib/device-tree/Bindings/rtc/faraday,ftrtc010.yaml (revision 911f0260390e18cf85f3dbf2c719b593efdc1e3c) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/rtc/faraday,ftrtc010.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Faraday Technology FTRTC010 Real Time Clock
8
9maintainers:
10  - Linus Walleij <linus.walleij@linaro.org>
11
12description: |
13  This RTC appears in for example the Storlink Gemini family of SoCs.
14
15properties:
16  compatible:
17    oneOf:
18      - const: faraday,ftrtc010
19      - items:
20          - const: cortina,gemini-rtc
21          - const: faraday,ftrtc010
22
23  resets:
24    maxItems: 1
25
26  reg:
27    maxItems: 1
28
29  interrupts:
30    maxItems: 1
31
32  clocks:
33    items:
34      - description: PCLK clocks
35      - description: EXTCLK clocks. Faraday calls it CLK1HZ and says the clock
36          should be 1 Hz, but implementers actually seem to choose different
37          clocks here, like Cortina who chose 32768 Hz (a typical low-power clock).
38
39  clock-names:
40    items:
41      - const: "PCLK"
42      - const: "EXTCLK"
43
44required:
45  - compatible
46
47additionalProperties: false
48
49examples:
50  - |
51    #include <dt-bindings/interrupt-controller/irq.h>
52    rtc@45000000 {
53      compatible = "cortina,gemini-rtc", "faraday,ftrtc010";
54      reg = <0x45000000 0x100>;
55      interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
56      clocks = <&foo 0>, <&foo 1>;
57      clock-names = "PCLK", "EXTCLK";
58    };
59