From patchwork Wed May 29 09:29:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 800348 Received: from baptiste.telenet-ops.be (baptiste.telenet-ops.be [195.130.132.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0A91B16A379 for ; Wed, 29 May 2024 09:29:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.130.132.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716974989; cv=none; b=pvzm3ZsHZSSse2oxKQdI3XinD/zfaZhIC7F1IKEd1lOyzLXzOukrY3La4PO1FPIx6O6UokQBJzJ2HIpHx6xKACE2XYRH+K4rJvU30jY2a5kZG6ELBuFLV2dNH49FAFFnLoeEQd6z/o6Uf/CPSnPbJ7nisi0p7dK2ntCroJ1q7J8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716974989; c=relaxed/simple; bh=K9JbpboeEVGszs4uTMo3Rfibhk0VjLLtBuNKn9PsLKY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=QAL3VV+EUEsQVmCvxeujSrCj9sK8wlItCWOoYFOmY4QgBBq43L2XTsG3lecT4VyT7iGxZN7GQto8JEz2A0x+9zHBDHpWE0vmI3HmHOhs3dqA0SdZVChmHzBxcx76lJRfdZpVkJfzGlRzdSU1ZLINEDSrmU5g1hfBRJgv6NnoFPU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=glider.be; spf=none smtp.mailfrom=linux-m68k.org; arc=none smtp.client-ip=195.130.132.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=glider.be Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux-m68k.org Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed80:1b01:1838:131c:4de4]) by baptiste.telenet-ops.be with bizsmtp id UxVg2C00g3VPV9V01xVgkh; Wed, 29 May 2024 11:29:43 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtp (Exim 4.95) (envelope-from ) id 1sCFbt-00GHKZ-Vo; Wed, 29 May 2024 11:29:40 +0200 Received: from geert by rox.of.borg with local (Exim 4.95) (envelope-from ) id 1sCFcq-008wRu-Cd; Wed, 29 May 2024 11:29:40 +0200 From: Geert Uytterhoeven To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Magnus Damm , Linus Walleij , Yoshihiro Shimoda Cc: devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-gpio@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH v2 1/8] dt-bindings: fuse: Document R-Car E-FUSE / PFC Date: Wed, 29 May 2024 11:29:30 +0200 Message-Id: <03e43e97941df238ef1a618852aecd7be68adbb0.1716974502.git.geert+renesas@glider.be> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Document support for E-FUSE non-volatile memory accessible through PFC on R-Car V3U and S4-8. Signed-off-by: Geert Uytterhoeven Reviewed-by: Yoshihiro Shimoda Reviewed-by: Rob Herring (Arm) --- v2: - Add Reviewed-by. --- .../bindings/fuse/renesas,rcar-efuse.yaml | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/fuse/renesas,rcar-efuse.yaml diff --git a/Documentation/devicetree/bindings/fuse/renesas,rcar-efuse.yaml b/Documentation/devicetree/bindings/fuse/renesas,rcar-efuse.yaml new file mode 100644 index 0000000000000000..d7e289244e72cce1 --- /dev/null +++ b/Documentation/devicetree/bindings/fuse/renesas,rcar-efuse.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/fuse/renesas,rcar-efuse.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: R-Car E-FUSE connected to PFC + +maintainers: + - Geert Uytterhoeven + +description: + The E-FUSE is a type of non-volatile memory, which is accessible through the + Pin Function Controller (PFC) on some R-Car Gen4 SoCs. + +properties: + compatible: + enum: + - renesas,r8a779a0-efuse # R-Car V3U + - renesas,r8a779f0-efuse # R-Car S4-8 + + reg: + maxItems: 1 + description: PFC System Group Fuse Control and Monitor register block + + clocks: + maxItems: 1 + + power-domains: + maxItems: 1 + + resets: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - power-domains + - resets + +additionalProperties: false + +examples: + - | + #include + #include + + fuse: fuse@e6078800 { + compatible = "renesas,r8a779a0-efuse"; + reg = <0xe6078800 0x100>; + clocks = <&cpg CPG_MOD 916>; + power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>; + resets = <&cpg 916>; + };