0001 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/spi/cdns,qspi-nor.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Cadence Quad SPI controller
0008
0009 maintainers:
0010 - Vaishnav Achath <vaishnav.a@ti.com>
0011
0012 allOf:
0013 - $ref: spi-controller.yaml#
0014 - if:
0015 properties:
0016 compatible:
0017 contains:
0018 const: xlnx,versal-ospi-1.0
0019 then:
0020 required:
0021 - power-domains
0022
0023 properties:
0024 compatible:
0025 oneOf:
0026 - items:
0027 - enum:
0028 - ti,k2g-qspi
0029 - ti,am654-ospi
0030 - intel,lgm-qspi
0031 - xlnx,versal-ospi-1.0
0032 - intel,socfpga-qspi
0033 - const: cdns,qspi-nor
0034 - const: cdns,qspi-nor
0035
0036 reg:
0037 items:
0038 - description: the controller register set
0039 - description: the controller data area
0040
0041 interrupts:
0042 maxItems: 1
0043
0044 clocks:
0045 maxItems: 1
0046
0047 cdns,fifo-depth:
0048 description:
0049 Size of the data FIFO in words.
0050 $ref: "/schemas/types.yaml#/definitions/uint32"
0051 enum: [ 128, 256 ]
0052 default: 128
0053
0054 cdns,fifo-width:
0055 $ref: /schemas/types.yaml#/definitions/uint32
0056 description:
0057 Bus width of the data FIFO in bytes.
0058 default: 4
0059
0060 cdns,trigger-address:
0061 $ref: /schemas/types.yaml#/definitions/uint32
0062 description:
0063 32-bit indirect AHB trigger address.
0064
0065 cdns,is-decoded-cs:
0066 type: boolean
0067 description:
0068 Flag to indicate whether decoder is used to select different chip select
0069 for different memory regions.
0070
0071 cdns,rclk-en:
0072 type: boolean
0073 description:
0074 Flag to indicate that QSPI return clock is used to latch the read
0075 data rather than the QSPI clock. Make sure that QSPI return clock
0076 is populated on the board before using this property.
0077
0078 power-domains:
0079 maxItems: 1
0080
0081 resets:
0082 maxItems: 2
0083
0084 reset-names:
0085 minItems: 1
0086 maxItems: 2
0087 items:
0088 enum: [ qspi, qspi-ocp ]
0089
0090 required:
0091 - compatible
0092 - reg
0093 - interrupts
0094 - clocks
0095 - cdns,fifo-depth
0096 - cdns,fifo-width
0097 - cdns,trigger-address
0098 - '#address-cells'
0099 - '#size-cells'
0100
0101 unevaluatedProperties: false
0102
0103 examples:
0104 - |
0105 qspi: spi@ff705000 {
0106 compatible = "cdns,qspi-nor";
0107 #address-cells = <1>;
0108 #size-cells = <0>;
0109 reg = <0xff705000 0x1000>,
0110 <0xffa00000 0x1000>;
0111 interrupts = <0 151 4>;
0112 clocks = <&qspi_clk>;
0113 cdns,fifo-depth = <128>;
0114 cdns,fifo-width = <4>;
0115 cdns,trigger-address = <0x00000000>;
0116 resets = <&rst 0x1>, <&rst 0x2>;
0117 reset-names = "qspi", "qspi-ocp";
0118
0119 flash@0 {
0120 compatible = "jedec,spi-nor";
0121 reg = <0x0>;
0122 };
0123 };
