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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/arm,realview.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM RealView Boards
+
+maintainers:
+ - Linus Walleij <linus.walleij@linaro.org>
+
+description: |+
+ The ARM RealView series of reference designs were built to explore the ARM
+ 11, Cortex A-8 and Cortex A-9 CPUs. This included new features compared to
+ the earlier CPUs such as TrustZone and multicore (MPCore).
+
+properties:
+ $nodename:
+ const: '/'
+ compatible:
+ oneOf:
+ - description: ARM RealView Emulation Baseboard (HBI-0140) was created
+ as a generic platform to test different FPGA designs, and has
+ pluggable CPU modules, see ARM DUI 0303E.
+ items:
+ - const: arm,realview-eb
+ - description: ARM RealView Platform Baseboard for ARM1176JZF-S
+ (HBI-0147) was created as a development board to test ARM TrustZone,
+ CoreSight and Intelligent Energy Management (IEM) see ARM DUI 0425F.
+ items:
+ - const: arm,realview-pb1176
+ - description: ARM RealView Platform Baseboard for ARM 11 MPCore
+ (HBI-0159, HBI-0175 and HBI-0176) was created to showcase
+ multiprocessing with ARM11 using MPCore using symmetric
+ multiprocessing (SMP). See ARM DUI 0351E.
+ items:
+ - const: arm,realview-pb11mp
+ - description: ARM RealView Platform Baseboard for Cortex-A8 (HBI-0178,
+ HBI-0176 and HBI-0175) was the first reference platform for the
+ Cortex CPU family, including a Cortex-A8 test chip.
+ items:
+ - const: arm,realview-pba8
+ - description: ARM RealView Platform Baseboard Explore for Cortex-A9
+ (HBI-0182 and HBI-0183) was the reference platform for the Cortex-A9
+ CPU.
+ items:
+ - const: arm,realview-pbx
+
+ soc:
+ description: All RealView boards must provide a soc node in the root of the
+ device tree, representing the System-on-Chip since these test chips are
+ rather complex.
+ type: object
+ properties:
+ compatible:
+ oneOf:
+ - items:
+ - const: arm,realview-eb-soc
+ - const: simple-bus
+ - items:
+ - const: arm,realview-pb1176-soc
+ - const: simple-bus
+ - items:
+ - const: arm,realview-pb11mp-soc
+ - const: simple-bus
+ - items:
+ - const: arm,realview-pba8-soc
+ - const: simple-bus
+ - items:
+ - const: arm,realview-pbx-soc
+ - const: simple-bus
+
+ patternProperties:
+ "^.*syscon@[0-9a-f]+$":
+ type: object
+ description: All RealView boards must provide a syscon system controller
+ node inside the soc node.
+
+ required:
+ - compatible
+
+required:
+ - compatible
+ - soc
+
+additionalProperties: true
+
+...