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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/arm/amlogic/amlogic,meson-mx-secbus2.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Amlogic Meson8/Meson8b/Meson8m2 SECBUS2 register interface8 9maintainers:10 - Martin Blumenstingl <martin.blumenstingl@googlemail.com>11 12description: |13 The Meson8/Meson8b/Meson8m2 SoCs have a register bank called SECBUS2 which14 contains registers for various IP blocks such as pin-controller bits for15 the BSD_EN and TEST_N GPIOs as well as some AO ARC core control bits.16 The registers can be accessed directly when not running in "secure mode".17 When "secure mode" is enabled then these registers have to be accessed18 through secure monitor calls.19 20properties:21 compatible:22 items:23 - enum:24 - amlogic,meson8-secbus225 - amlogic,meson8b-secbus226 - const: syscon27 28 reg:29 maxItems: 130 31required:32 - compatible33 - reg34 35additionalProperties: false36 37examples:38 - |39 secbus2: system-controller@4000 {40 compatible = "amlogic,meson8-secbus2", "syscon";41 reg = <0x4000 0x2000>;42 };43