xref: /freebsd/sys/contrib/device-tree/Bindings/spi/atmel,quadspi.yaml (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/spi/atmel,quadspi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Atmel Quad Serial Peripheral Interface (QSPI)
8
9maintainers:
10  - Tudor Ambarus <tudor.ambarus@microchip.com>
11
12allOf:
13  - $ref: spi-controller.yaml#
14
15properties:
16  compatible:
17    enum:
18      - atmel,sama5d2-qspi
19      - microchip,sam9x60-qspi
20      - microchip,sama7g5-qspi
21      - microchip,sama7g5-ospi
22
23  reg:
24    items:
25      - description: base registers
26      - description: mapped memory
27
28  reg-names:
29    items:
30      - const: qspi_base
31      - const: qspi_mmap
32
33  clocks:
34    minItems: 1
35    items:
36      - description: peripheral clock
37      - description: system clock or generic clock, if available
38
39  clock-names:
40    minItems: 1
41    items:
42      - const: pclk
43      - enum: [ qspick, gclk ]
44
45  interrupts:
46    maxItems: 1
47
48  dmas:
49    items:
50      - description: tx DMA channel
51      - description: rx DMA channel
52
53  dma-names:
54    items:
55      - const: tx
56      - const: rx
57
58  '#address-cells':
59    const: 1
60
61  '#size-cells':
62    const: 0
63
64required:
65  - compatible
66  - reg
67  - reg-names
68  - interrupts
69  - clocks
70  - clock-names
71  - '#address-cells'
72  - '#size-cells'
73
74unevaluatedProperties: false
75
76examples:
77  - |
78    #include <dt-bindings/interrupt-controller/irq.h>
79    #include <dt-bindings/clock/at91.h>
80    spi@f0020000 {
81        compatible = "atmel,sama5d2-qspi";
82        reg = <0xf0020000 0x100>, <0xd0000000 0x8000000>;
83        reg-names = "qspi_base", "qspi_mmap";
84        interrupts = <52 IRQ_TYPE_LEVEL_HIGH 7>;
85        clocks = <&pmc PMC_TYPE_PERIPHERAL 52>;
86        clock-names = "pclk";
87        #address-cells = <1>;
88        #size-cells = <0>;
89        pinctrl-names = "default";
90        pinctrl-0 = <&pinctrl_spi0_default>;
91
92        flash@0 {
93            compatible = "jedec,spi-nor";
94            spi-max-frequency = <50000000>;
95            reg = <0>;
96            spi-rx-bus-width = <4>;
97            spi-tx-bus-width = <4>;
98        };
99    };
100