xref: /linux/Documentation/devicetree/bindings/spi/qcom,spi-qcom-qspi.yaml (revision dec1c62e91ba268ab2a6e339d4d7a59287d5eba1) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2
3%YAML 1.2
4---
5$id: "http://devicetree.org/schemas/spi/qcom,spi-qcom-qspi.yaml#"
6$schema: "http://devicetree.org/meta-schemas/core.yaml#"
7
8title: Qualcomm Quad Serial Peripheral Interface (QSPI)
9
10maintainers:
11  - Bjorn Andersson <bjorn.andersson@linaro.org>
12
13description: The QSPI controller allows SPI protocol communication in single,
14  dual, or quad wire transmission modes for read/write access to slaves such
15  as NOR flash.
16
17allOf:
18  - $ref: /schemas/spi/spi-controller.yaml#
19
20properties:
21  compatible:
22    items:
23      - enum:
24          - qcom,sc7180-qspi
25          - qcom,sc7280-qspi
26          - qcom,sdm845-qspi
27
28      - const: qcom,qspi-v1
29
30  reg:
31    maxItems: 1
32
33  interrupts:
34    maxItems: 1
35
36  clock-names:
37    items:
38      - const: iface
39      - const: core
40
41  clocks:
42    items:
43      - description: AHB clock
44      - description: QSPI core clock
45
46  interconnects:
47    minItems: 1
48    maxItems: 2
49
50  interconnect-names:
51    minItems: 1
52    items:
53      - const: qspi-config
54      - const: qspi-memory
55
56required:
57  - compatible
58  - reg
59  - interrupts
60  - clock-names
61  - clocks
62
63unevaluatedProperties: false
64
65examples:
66  - |
67    #include <dt-bindings/clock/qcom,gcc-sdm845.h>
68    #include <dt-bindings/interrupt-controller/arm-gic.h>
69
70    soc: soc {
71        #address-cells = <2>;
72        #size-cells = <2>;
73
74        qspi: spi@88df000 {
75            compatible = "qcom,sdm845-qspi", "qcom,qspi-v1";
76            reg = <0 0x88df000 0 0x600>;
77            #address-cells = <1>;
78            #size-cells = <0>;
79            interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
80            clock-names = "iface", "core";
81            clocks = <&gcc GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
82                         <&gcc GCC_QSPI_CORE_CLK>;
83
84            flash@0 {
85                compatible = "jedec,spi-nor";
86                reg = <0>;
87                spi-max-frequency = <25000000>;
88                spi-tx-bus-width = <2>;
89                spi-rx-bus-width = <2>;
90            };
91
92        };
93    };
94...
95