| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | # Copyright 2020-21 Cadence |
| 3 | %YAML 1.2 |
| 4 | --- |
| 5 | $id: http://devicetree.org/schemas/spi/cdns,xspi.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 7 | |
| 8 | title: Cadence XSPI Controller |
| 9 | |
| 10 | maintainers: |
| 11 | - Parshuram Thombare <pthombar@cadence.com> |
| 12 | |
| 13 | description: | |
| 14 | The XSPI controller allows SPI protocol communication in |
| 15 | single, dual, quad or octal wire transmission modes for |
| 16 | read/write access to slaves such as SPI-NOR flash. |
| 17 | |
| 18 | allOf: |
| 19 | - $ref: spi-controller.yaml# |
| 20 | |
| 21 | properties: |
| 22 | compatible: |
| 23 | const: cdns,xspi-nor |
| 24 | |
| 25 | reg: |
| 26 | items: |
| 27 | - description: address and length of the controller register set |
| 28 | - description: address and length of the Slave DMA data port |
| 29 | - description: address and length of the auxiliary registers |
| 30 | |
| 31 | reg-names: |
| 32 | items: |
| 33 | - const: io |
| 34 | - const: sdma |
| 35 | - const: aux |
| 36 | |
| 37 | interrupts: |
| 38 | maxItems: 1 |
| 39 | |
| 40 | required: |
| 41 | - compatible |
| 42 | - reg |
| 43 | - interrupts |
| 44 | |
| 45 | unevaluatedProperties: false |
| 46 | |
| 47 | examples: |
| 48 | - | |
| 49 | #include <dt-bindings/interrupt-controller/irq.h> |
| 50 | bus { |
| 51 | #address-cells = <2>; |
| 52 | #size-cells = <2>; |
| 53 | |
| 54 | xspi: spi@a0010000 { |
| 55 | #address-cells = <1>; |
| 56 | #size-cells = <0>; |
| 57 | compatible = "cdns,xspi-nor"; |
| 58 | reg = <0x0 0xa0010000 0x0 0x1040>, |
| 59 | <0x0 0xb0000000 0x0 0x1000>, |
| 60 | <0x0 0xa0020000 0x0 0x100>; |
| 61 | reg-names = "io", "sdma", "aux"; |
| 62 | interrupts = <0 90 IRQ_TYPE_LEVEL_HIGH>; |
| 63 | interrupt-parent = <&gic>; |
| 64 | |
| 65 | flash@0 { |
| 66 | compatible = "jedec,spi-nor"; |
| 67 | spi-max-frequency = <75000000>; |
| 68 | reg = <0>; |
| 69 | }; |
| 70 | |
| 71 | flash@1 { |
| 72 | compatible = "jedec,spi-nor"; |
| 73 | spi-max-frequency = <75000000>; |
| 74 | reg = <1>; |
| 75 | }; |
| 76 | }; |
| 77 | }; |