| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/mfd/delta,tn48m-cpld.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Delta Networks TN48M CPLD controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Robert Marko <robert.marko@sartura.hr> |
| 11 | |
| 12 | description: | |
| 13 | Lattice CPLD onboard the TN48M switches is used for system |
| 14 | management. |
| 15 | |
| 16 | It provides information about the hardware model, revision, |
| 17 | PSU status etc. |
| 18 | |
| 19 | It is also being used as a GPIO expander and reset controller |
| 20 | for the switch MAC-s and other peripherals. |
| 21 | |
| 22 | properties: |
| 23 | compatible: |
| 24 | const: delta,tn48m-cpld |
| 25 | |
| 26 | reg: |
| 27 | description: |
| 28 | I2C device address. |
| 29 | maxItems: 1 |
| 30 | |
| 31 | "#address-cells": |
| 32 | const: 1 |
| 33 | |
| 34 | "#size-cells": |
| 35 | const: 0 |
| 36 | |
| 37 | required: |
| 38 | - compatible |
| 39 | - reg |
| 40 | - "#address-cells" |
| 41 | - "#size-cells" |
| 42 | |
| 43 | patternProperties: |
| 44 | "^gpio(@[0-9a-f]+)?$": |
| 45 | $ref: ../gpio/delta,tn48m-gpio.yaml |
| 46 | |
| 47 | "^reset-controller?$": |
| 48 | $ref: ../reset/delta,tn48m-reset.yaml |
| 49 | |
| 50 | additionalProperties: false |
| 51 | |
| 52 | examples: |
| 53 | - | |
| 54 | i2c { |
| 55 | #address-cells = <1>; |
| 56 | #size-cells = <0>; |
| 57 | |
| 58 | cpld@41 { |
| 59 | compatible = "delta,tn48m-cpld"; |
| 60 | reg = <0x41>; |
| 61 | #address-cells = <1>; |
| 62 | #size-cells = <0>; |
| 63 | |
| 64 | gpio@31 { |
| 65 | compatible = "delta,tn48m-gpo"; |
| 66 | reg = <0x31>; |
| 67 | gpio-controller; |
| 68 | #gpio-cells = <2>; |
| 69 | }; |
| 70 | |
| 71 | gpio@3a { |
| 72 | compatible = "delta,tn48m-gpi"; |
| 73 | reg = <0x3a>; |
| 74 | gpio-controller; |
| 75 | #gpio-cells = <2>; |
| 76 | }; |
| 77 | |
| 78 | gpio@40 { |
| 79 | compatible = "delta,tn48m-gpi"; |
| 80 | reg = <0x40>; |
| 81 | gpio-controller; |
| 82 | #gpio-cells = <2>; |
| 83 | }; |
| 84 | |
| 85 | reset-controller { |
| 86 | compatible = "delta,tn48m-reset"; |
| 87 | #reset-cells = <1>; |
| 88 | }; |
| 89 | }; |
| 90 | }; |