0001 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
0002
0003 %YAML 1.2
0004 ---
0005 $id: "http://devicetree.org/schemas/spi/qcom,spi-qcom-qspi.yaml#"
0006 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
0007
0008 title: Qualcomm Quad Serial Peripheral Interface (QSPI)
0009
0010 maintainers:
0011 - Bjorn Andersson <bjorn.andersson@linaro.org>
0012
0013 description: The QSPI controller allows SPI protocol communication in single,
0014 dual, or quad wire transmission modes for read/write access to slaves such
0015 as NOR flash.
0016
0017 allOf:
0018 - $ref: /schemas/spi/spi-controller.yaml#
0019
0020 properties:
0021 compatible:
0022 items:
0023 - enum:
0024 - qcom,sc7180-qspi
0025 - qcom,sc7280-qspi
0026 - qcom,sdm845-qspi
0027
0028 - const: qcom,qspi-v1
0029
0030 reg:
0031 maxItems: 1
0032
0033 interrupts:
0034 maxItems: 1
0035
0036 clock-names:
0037 items:
0038 - const: iface
0039 - const: core
0040
0041 clocks:
0042 items:
0043 - description: AHB clock
0044 - description: QSPI core clock
0045
0046 interconnects:
0047 minItems: 1
0048 maxItems: 2
0049
0050 interconnect-names:
0051 minItems: 1
0052 items:
0053 - const: qspi-config
0054 - const: qspi-memory
0055
0056 required:
0057 - compatible
0058 - reg
0059 - interrupts
0060 - clock-names
0061 - clocks
0062
0063 unevaluatedProperties: false
0064
0065 examples:
0066 - |
0067 #include <dt-bindings/clock/qcom,gcc-sdm845.h>
0068 #include <dt-bindings/interrupt-controller/arm-gic.h>
0069
0070 soc: soc {
0071 #address-cells = <2>;
0072 #size-cells = <2>;
0073
0074 qspi: spi@88df000 {
0075 compatible = "qcom,sdm845-qspi", "qcom,qspi-v1";
0076 reg = <0 0x88df000 0 0x600>;
0077 #address-cells = <1>;
0078 #size-cells = <0>;
0079 interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
0080 clock-names = "iface", "core";
0081 clocks = <&gcc GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
0082 <&gcc GCC_QSPI_CORE_CLK>;
0083
0084 flash@0 {
0085 compatible = "jedec,spi-nor";
0086 reg = <0>;
0087 spi-max-frequency = <25000000>;
0088 spi-tx-bus-width = <2>;
0089 spi-rx-bus-width = <2>;
0090 };
0091
0092 };
0093 };
0094 ...
