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77 lines
1.8 KiB
77 lines
1.8 KiB
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
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# Copyright 2020-21 Cadence |
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%YAML 1.2 |
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--- |
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$id: "http://devicetree.org/schemas/spi/cdns,xspi.yaml#" |
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$schema: "http://devicetree.org/meta-schemas/core.yaml#" |
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title: Cadence XSPI Controller |
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maintainers: |
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- Parshuram Thombare <[email protected]> |
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description: | |
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The XSPI controller allows SPI protocol communication in |
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single, dual, quad or octal wire transmission modes for |
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read/write access to slaves such as SPI-NOR flash. |
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allOf: |
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- $ref: "spi-controller.yaml#" |
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properties: |
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compatible: |
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const: cdns,xspi-nor |
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reg: |
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items: |
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- description: address and length of the controller register set |
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- description: address and length of the Slave DMA data port |
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- description: address and length of the auxiliary registers |
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reg-names: |
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items: |
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- const: io |
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- const: sdma |
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- const: aux |
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interrupts: |
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maxItems: 1 |
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required: |
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- compatible |
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- reg |
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- interrupts |
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unevaluatedProperties: false |
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examples: |
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- | |
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#include <dt-bindings/interrupt-controller/irq.h> |
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bus { |
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#address-cells = <2>; |
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#size-cells = <2>; |
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xspi: spi@a0010000 { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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compatible = "cdns,xspi-nor"; |
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reg = <0x0 0xa0010000 0x0 0x1040>, |
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<0x0 0xb0000000 0x0 0x1000>, |
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<0x0 0xa0020000 0x0 0x100>; |
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reg-names = "io", "sdma", "aux"; |
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interrupts = <0 90 IRQ_TYPE_LEVEL_HIGH>; |
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interrupt-parent = <&gic>; |
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flash@0 { |
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compatible = "jedec,spi-nor"; |
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spi-max-frequency = <75000000>; |
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reg = <0>; |
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}; |
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flash@1 { |
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compatible = "jedec,spi-nor"; |
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spi-max-frequency = <75000000>; |
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reg = <1>; |
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}; |
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}; |
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};
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