projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| e0f94691 RQ |
1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | # Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/ | |
| 3 | %YAML 1.2 | |
| 4 | --- | |
| 5 | $id: http://devicetree.org/schemas/mfd/ti,j721e-system-controller.yaml# | |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# | |
| 7 | ||
| 8 | title: TI J721e System Controller Registers R/W Device Tree Bindings | |
| 9 | ||
| 10 | description: | | |
| 11 | This represents the Control Module registers (CTRL_MMR0) on the SoC. | |
| 12 | System controller node represents a register region containing a set | |
| 13 | of miscellaneous registers. The registers are not cohesive enough to | |
| 14 | represent as any specific type of device. The typical use-case is | |
| 15 | for some other node's driver, or platform-specific code, to acquire | |
| 16 | a reference to the syscon node (e.g. by phandle, node path, or | |
| 17 | search using a specific compatible value), interrogate the node (or | |
| 18 | associated OS driver) to determine the location of the registers, | |
| 19 | and access the registers directly. | |
| 20 | ||
| 21 | maintainers: | |
| 22 | - Kishon Vijay Abraham I <kishon@ti.com> | |
| 23 | - Roger Quadros <rogerq@ti.com | |
| 24 | ||
| 25 | properties: | |
| 26 | compatible: | |
| f516fb70 RH |
27 | items: |
| 28 | - enum: | |
| 29 | - ti,j721e-system-controller | |
| 30 | - const: syscon | |
| 31 | - const: simple-mfd | |
| e0f94691 | 32 | |
| 4828556d RH |
33 | reg: |
| 34 | maxItems: 1 | |
| 35 | ||
| e0f94691 RQ |
36 | "#address-cells": |
| 37 | const: 1 | |
| 38 | ||
| 39 | "#size-cells": | |
| 40 | const: 1 | |
| 41 | ||
| 42 | ranges: true | |
| 43 | ||
| 1b25b207 RH |
44 | patternProperties: |
| 45 | # Optional children | |
| e0f94691 RQ |
46 | "^serdes-ln-ctrl@[0-9a-f]+$": |
| 47 | type: object | |
| 48 | description: | | |
| 49 | This is the SERDES lane control mux. It should follow the bindings | |
| 50 | specified in | |
| 51 | Documentation/devicetree/bindings/mux/reg-mux.txt | |
| 52 | ||
| 53 | required: | |
| 54 | - compatible | |
| 55 | - reg | |
| 56 | - "#address-cells" | |
| 57 | - "#size-cells" | |
| 58 | - ranges | |
| 59 | ||
| 4828556d | 60 | additionalProperties: false |
| e0f94691 RQ |
61 | |
| 62 | examples: | |
| 63 | - | | |
| 64 | scm_conf: scm-conf@100000 { | |
| 65 | compatible = "ti,j721e-system-controller", "syscon", "simple-mfd"; | |
| 66 | reg = <0x00100000 0x1c000>; | |
| 67 | #address-cells = <1>; | |
| 68 | #size-cells = <1>; | |
| 69 | ranges; | |
| 70 | ||
| 71 | serdes_ln_ctrl: serdes-ln-ctrl@4080 { | |
| 72 | compatible = "mmio-mux"; | |
| 73 | reg = <0x00004080 0x50>; | |
| 74 | }; | |
| 75 | }; | |
| 76 | ... |