dt-bindings: reset: rcar-rst: Convert to json-schema
Convert the Renesas R-Car Reset Controller Device Tree binding documentation to json-schema. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Rob Herring <robh@kernel.org>
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Geert Uytterhoeven
Rob Herring
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DT bindings for the Renesas R-Car and RZ/G Reset Controllers
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The R-Car and RZ/G Reset Controllers provide reset control, and implement the
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following functions:
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- Latching of the levels on mode pins when PRESET# is negated,
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- Mode monitoring register,
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- Reset control of peripheral devices (on R-Car Gen1),
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- Watchdog timer (on R-Car Gen1),
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- Register-based reset control and boot address registers for the various CPU
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cores (on R-Car Gen2 and Gen3, and on RZ/G).
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Required properties:
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- compatible: Should be
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- "renesas,<soctype>-reset-wdt" for R-Car Gen1,
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- "renesas,<soctype>-rst" for R-Car Gen2 and Gen3, and RZ/G
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Examples with soctypes are:
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- "renesas,r8a7743-rst" (RZ/G1M)
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- "renesas,r8a7744-rst" (RZ/G1N)
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- "renesas,r8a7745-rst" (RZ/G1E)
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- "renesas,r8a77470-rst" (RZ/G1C)
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- "renesas,r8a774a1-rst" (RZ/G2M)
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- "renesas,r8a774b1-rst" (RZ/G2N)
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- "renesas,r8a774c0-rst" (RZ/G2E)
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- "renesas,r8a7778-reset-wdt" (R-Car M1A)
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- "renesas,r8a7779-reset-wdt" (R-Car H1)
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- "renesas,r8a7790-rst" (R-Car H2)
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- "renesas,r8a7791-rst" (R-Car M2-W)
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- "renesas,r8a7792-rst" (R-Car V2H
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- "renesas,r8a7793-rst" (R-Car M2-N)
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- "renesas,r8a7794-rst" (R-Car E2)
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- "renesas,r8a7795-rst" (R-Car H3)
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- "renesas,r8a7796-rst" (R-Car M3-W)
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- "renesas,r8a77961-rst" (R-Car M3-W+)
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- "renesas,r8a77965-rst" (R-Car M3-N)
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- "renesas,r8a77970-rst" (R-Car V3M)
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- "renesas,r8a77980-rst" (R-Car V3H)
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- "renesas,r8a77990-rst" (R-Car E3)
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- "renesas,r8a77995-rst" (R-Car D3)
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- reg: Address start and address range for the device.
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Example:
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rst: reset-controller@e6160000 {
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compatible = "renesas,r8a7795-rst";
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reg = <0 0xe6160000 0 0x0200>;
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};
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: "http://devicetree.org/schemas/reset/renesas,rst.yaml#"
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$schema: "http://devicetree.org/meta-schemas/core.yaml#"
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title: Renesas R-Car and RZ/G Reset Controller
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maintainers:
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- Geert Uytterhoeven <geert+renesas@glider.be>
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- Magnus Damm <magnus.damm@gmail.com>
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description: |
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The R-Car and RZ/G Reset Controllers provide reset control, and implement the
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following functions:
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- Latching of the levels on mode pins when PRESET# is negated,
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- Mode monitoring register,
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- Reset control of peripheral devices (on R-Car Gen1),
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- Watchdog timer (on R-Car Gen1),
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- Register-based reset control and boot address registers for the various
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CPU cores (on R-Car Gen2 and Gen3, and on RZ/G).
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properties:
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compatible:
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enum:
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- renesas,r8a7743-rst # RZ/G1M
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- renesas,r8a7744-rst # RZ/G1N
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- renesas,r8a7745-rst # RZ/G1E
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- renesas,r8a77470-rst # RZ/G1C
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- renesas,r8a774a1-rst # RZ/G2M
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- renesas,r8a774b1-rst # RZ/G2N
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- renesas,r8a774c0-rst # RZ/G2E
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- renesas,r8a7778-reset-wdt # R-Car M1A
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- renesas,r8a7779-reset-wdt # R-Car H1
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- renesas,r8a7790-rst # R-Car H2
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- renesas,r8a7791-rst # R-Car M2-W
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- renesas,r8a7792-rst # R-Car V2H
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- renesas,r8a7793-rst # R-Car M2-N
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- renesas,r8a7794-rst # R-Car E2
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- renesas,r8a7795-rst # R-Car H3
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- renesas,r8a7796-rst # R-Car M3-W
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- renesas,r8a77961-rst # R-Car M3-W+
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- renesas,r8a77965-rst # R-Car M3-N
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- renesas,r8a77970-rst # R-Car V3M
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- renesas,r8a77980-rst # R-Car V3H
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- renesas,r8a77990-rst # R-Car E3
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- renesas,r8a77995-rst # R-Car D3
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reg:
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maxItems: 1
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required:
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- compatible
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- reg
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additionalProperties: false
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examples:
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- |
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rst: reset-controller@e6160000 {
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compatible = "renesas,r8a7795-rst";
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reg = <0xe6160000 0x0200>;
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};
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