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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/remoteproc/amlogic,meson-mx-ao-arc.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Amlogic Meson AO ARC Remote Processor8 9description:10 Amlogic Meson6, Meson8, Meson8b and Meson8m2 SoCs embed an ARC core11 controller for always-on operations, typically used for managing12 system suspend. Meson6 and older use a ARC core based on the ARCv113 ISA, while Meson8, Meson8b and Meson8m2 use an ARC EM4 (ARCv2 ISA)14 core.15 16maintainers:17 - Martin Blumenstingl <martin.blumenstingl@googlemail.com>18 19properties:20 compatible:21 items:22 - enum:23 - amlogic,meson8-ao-arc24 - amlogic,meson8b-ao-arc25 - const: amlogic,meson-mx-ao-arc26 27 firmware-name:28 $ref: /schemas/types.yaml#/definitions/string29 description:30 The name of the firmware which should be loaded for this remote31 processor.32 33 reg:34 description:35 Address ranges of the remap and CPU control addresses for the36 remote processor.37 minItems: 238 39 reg-names:40 items:41 - const: remap42 - const: cpu43 44 resets:45 minItems: 146 47 clocks:48 minItems: 149 50 sram:51 $ref: /schemas/types.yaml#/definitions/phandle52 description:53 phandles to a reserved SRAM region which is used as the memory of54 the ARC core. The region should be defined as child nodes of the55 AHB SRAM node as per the generic bindings in56 Documentation/devicetree/bindings/sram/sram.yaml57 58 amlogic,secbus2:59 $ref: /schemas/types.yaml#/definitions/phandle60 description:61 A phandle to the SECBUS2 region which contains some configuration62 bits of this remote processor63 64required:65 - compatible66 - reg67 - reg-names68 - resets69 - clocks70 - sram71 - amlogic,secbus272 73additionalProperties: false74 75examples:76 - |77 remoteproc@1c {78 compatible = "amlogic,meson8-ao-arc", "amlogic,meson-mx-ao-arc";79 reg = <0x1c 0x8>, <0x38 0x8>;80 reg-names = "remap", "cpu";81 resets = <&media_cpu_reset>;82 clocks = <&media_cpu_clock>;83 sram = <&ahb_sram_ao_arc>;84 amlogic,secbus2 = <&secbus2>;85 };86 87...88