1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/spi/qcom,spi-qcom-qspi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Qualcomm Quad Serial Peripheral Interface (QSPI)
8
9 maintainers:
10 - Bjorn Andersson <bjorn.andersson@linaro.org>
11
12 description: The QSPI controller allows SPI protocol communication in single,
13 dual, or quad wire transmission modes for read/write access to slaves such
14 as NOR flash.
15
16 allOf:
17 - $ref: /schemas/spi/spi-controller.yaml#
18
19 properties:
20 compatible:
21 items:
22 - enum:
23 - qcom,sc7180-qspi
24 - qcom,sc7280-qspi
25 - qcom,sdm845-qspi
26
27 - const: qcom,qspi-v1
28
29 reg:
30 maxItems: 1
31
32 iommus:
33 maxItems: 1
34
35 interrupts:
36 maxItems: 1
37
38 clock-names:
39 items:
40 - const: iface
41 - const: core
42
43 clocks:
44 items:
45 - description: AHB clock
46 - description: QSPI core clock
47
48 interconnects:
49 minItems: 1
50 maxItems: 2
51
52 interconnect-names:
53 minItems: 1
54 items:
55 - const: qspi-config
56 - const: qspi-memory
57
58 operating-points-v2: true
59
60 power-domains:
61 maxItems: 1
62
63 required:
64 - compatible
65 - reg
66 - interrupts
67 - clock-names
68 - clocks
69
70 unevaluatedProperties: false
71
72 examples:
73 - |
74 #include <dt-bindings/clock/qcom,gcc-sdm845.h>
75 #include <dt-bindings/interrupt-controller/arm-gic.h>
76
77 soc: soc {
78 #address-cells = <2>;
79 #size-cells = <2>;
80
81 qspi: spi@88df000 {
82 compatible = "qcom,sdm845-qspi", "qcom,qspi-v1";
83 reg = <0 0x88df000 0 0x600>;
84 #address-cells = <1>;
85 #size-cells = <0>;
86 interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
87 clock-names = "iface", "core";
88 clocks = <&gcc GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
89 <&gcc GCC_QSPI_CORE_CLK>;
90
91 flash@0 {
92 compatible = "jedec,spi-nor";
93 reg = <0>;
94 spi-max-frequency = <25000000>;
95 spi-tx-bus-width = <2>;
96 spi-rx-bus-width = <2>;
97 };
98 };
99 };
100 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.