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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/bus/fsl,spba-bus.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Shared Peripherals Bus Interface8 9maintainers:10 - Shawn Guo <shawnguo@kernel.org>11 12description: |13 A simple bus enabling access to shared peripherals.14 15 The "spba-bus" follows the "simple-bus" set of properties, as16 specified in the Devicetree Specification. It is an extension of17 "simple-bus" because the SDMA controller uses this compatible flag to18 determine which peripherals are available to it and the range over which19 the SDMA can access. There are no special clocks for the bus, because20 the SDMA controller itself has its interrupt and clock assignments.21 22select:23 properties:24 compatible:25 contains:26 const: fsl,spba-bus27 required:28 - compatible29 30properties:31 $nodename:32 pattern: "^spba-bus(@[0-9a-f]+)?$"33 34 compatible:35 items:36 - const: fsl,spba-bus37 - const: simple-bus38 39 '#address-cells':40 enum: [ 1, 2 ]41 42 '#size-cells':43 enum: [ 1, 2 ]44 45 reg:46 maxItems: 147 48 ranges: true49 50required:51 - compatible52 - '#address-cells'53 - '#size-cells'54 - reg55 - ranges56 57additionalProperties:58 type: object59 60examples:61 - |62 spba-bus@30000000 {63 compatible = "fsl,spba-bus", "simple-bus";64 #address-cells = <1>;65 #size-cells = <1>;66 reg = <0x30000000 0x100000>;67 ranges;68 };69