1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/remoteproc/amlogic,meson-mx-ao-arc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Amlogic Meson AO ARC Remote Processor
10 Amlogic Meson6, Meson8, Meson8b and Meson8m2 SoCs embed an ARC core
11 controller for always-on operations, typically used for managing
12 system suspend. Meson6 and older use a ARC core based on the ARCv1
13 ISA, while Meson8, Meson8b and Meson8m2 use an ARC EM4 (ARCv2 ISA)
17 - Martin Blumenstingl <martin.blumenstingl@googlemail.com>
23 - amlogic,meson8-ao-arc
24 - amlogic,meson8b-ao-arc
25 - const: amlogic,meson-mx-ao-arc
28 $ref: /schemas/types.yaml#/definitions/string
30 The name of the firmware which should be loaded for this remote
35 Address ranges of the remap and CPU control addresses for the
51 $ref: /schemas/types.yaml#/definitions/phandle
53 phandles to a reserved SRAM region which is used as the memory of
54 the ARC core. The region should be defined as child nodes of the
55 AHB SRAM node as per the generic bindings in
56 Documentation/devicetree/bindings/sram/sram.yaml
59 $ref: /schemas/types.yaml#/definitions/phandle
61 A phandle to the SECBUS2 region which contains some configuration
62 bits of this remote processor
73 additionalProperties: false
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>;