From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f171.google.com (mail-pg1-f171.google.com [209.85.215.171]) (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 C88822E54BE for ; Wed, 18 Jun 2025 12:15:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750248916; cv=none; b=hEeatA2/D6syzZ+A+rLjS5GpMkEpdEAj7DjF2GsMMTgHVH6FuySDFnkkNeiJezyYgyFGTyj3vRlVkndEnj8901DgiiXae+5cpE4yDqIdpiyHePvQanTRk1awcw/+D0CU649D0XmZoGEJ6bAk8EX92Bx7q32Yv10Ph8kbsVGcsYc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750248916; c=relaxed/simple; bh=psnTedHrRclNzYfKOxzNdzEC/lgie9/9OjOQXPUJ9ek=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=muiOjLSki/fORlHvFp9nxIIkkBUO9j4lMjFeIe8KQShiiU8JXrz6EIdpituNMeMx/5t07aDcCR0imvUXZLIqh+nlfYntwpRLwfJMBjYA8NnSxzsJOn4zYB+rXCBHAdcINIazxfm/peZbZpr26O4yOFjjuOa+vleeLcXQc3OVhmQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com; spf=pass smtp.mailfrom=ventanamicro.com; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b=LYmhLDPo; arc=none smtp.client-ip=209.85.215.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b="LYmhLDPo" Received: by mail-pg1-f171.google.com with SMTP id 41be03b00d2f7-b2c2c762a89so5556105a12.0 for ; Wed, 18 Jun 2025 05:15:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1750248914; x=1750853714; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=UM/HZQdb2lcK8V7OkC2GVlA2nnGt1f60vmRpDyo8E4k=; b=LYmhLDPofo6qxx7KvJQRfuxNHsONrkWruyoGMTAL3uvEtvjPSHgleHaylDMPtjnfGN rp8SPHeofSmbeHOBP9E2YQN1Waz8KntRGrdXXSxtys4c/NuEdJFs+IAV+Cra+RZFFqji MkoaBvPw7erHc+iHECO9UdyNcpNWBf7wysKwtbnOE9Uk52lKqKcb4a0b7negPY5UCSLd 7dTc7zIMxBNKaNGxNCc75iw5Df03PzOwtqw5V855iRkPspPV0Kb/t73d7WJ/fbAupUeq g3VKxGaa5ed5ObIxmcDy616pV/DvGSGnPXX3DoYUwdMgJR9hZskZTwByPUlnHZikcIzu fJzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750248914; x=1750853714; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=UM/HZQdb2lcK8V7OkC2GVlA2nnGt1f60vmRpDyo8E4k=; b=uPhDSHGVXKSTD5m7VmTI2JH2wjB/JpHHKRFIWsEQqai1PrJiMYgCB4e9LMpWx3HZfT DTRWAkxOfNAcFi8+M0m55He25KyKgr8Gs8tR9cTjP8cbbMwUqB+cQa5FD+LoJksDdJ+/ WGL3LQWcApvdttV9LWsFtD/KSrYqmXEDm8G9tIErG99v6H9MMMDpSONHkOdHkT6nbHzT e9EMSh6iLmCx0uIB+zVetNagIi7FekQ2NpjoCWMpe5mFcM40dRwYvTBYRUIZpYv1Vnob lShmdIQ+4fc2UYNcQdUSufxPlzuYoo2x4BywNOrYQN0OoivPbK2tOxAQ6WmnVBdx4M6Z qbMw== X-Forwarded-Encrypted: i=1; AJvYcCVI2NZB38OGd8JWGUUo3skQqXSGVYmSjsbwJvLOzOqdN/rC4zDk2d5s5kM8fYDOPga5pUN0IQAFId/l@vger.kernel.org X-Gm-Message-State: AOJu0YwSq8gh2U5KJk8eoixVPZgQVBav37XSNvV0uAmY+irKYLgoRz/X VYC0PWgOesDF2yXTeGxz3AeR1mWJ0Yl1qAyrOFPr9b1Ijbklctsrxds6FA0X1biabGU= X-Gm-Gg: ASbGncscRuz/skcJqrnwTZDh1iu0wefl27jVy12whQM9/Dar7TeMDmPGn1kJbHGPW7V xduSvOEqbccmw9pnc4Pc/XoxTbHL06TFMRf9mgx5U5ZImqWjvfeGs5bzCEoVWa4v2wM0aIsGFSj J4NUHP9fIsaLHtdNNaFiw0g4d1djqaf7kWpILJwemd+lWgb+GXSj6xHBNj/wx4WBbOIUH0qnN10 uOpB0tthOESNQ+DyLA5Xlgfx79S96dGa4K4O7BVRn+Id44cYRjBKgTsSjTNnx7y3m9qjKDfxW8b bqZ7u+9L7jcfXLzeGwti9b+rvOX8I1mX2SCWg32pB42VJpd/Wn+GisVvg4vkr/MyznbSuVo6Nor gjKfI5NCQKpdhVZc1vA== X-Google-Smtp-Source: AGHT+IGpDJao2qZOumFSvvfbkzlCDWzk3wE0Q5eIberU12DIM26VmJ5PFPyH0X+lTLfK2UXnDjT87g== X-Received: by 2002:a05:6a20:9e48:b0:220:eef:e8f0 with SMTP id adf61e73a8af0-2200eefeademr41789637.23.1750248913920; Wed, 18 Jun 2025 05:15:13 -0700 (PDT) Received: from localhost.localdomain ([122.171.23.44]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-748900d7e0asm11201177b3a.174.2025.06.18.05.15.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Jun 2025 05:15:13 -0700 (PDT) From: Anup Patel To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jassi Brar , Thomas Gleixner , "Rafael J . Wysocki" , Mika Westerberg , Andy Shevchenko , Linus Walleij , Bartosz Golaszewski , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Cc: Palmer Dabbelt , Paul Walmsley , Len Brown , Sunil V L , Rahul Pathak , Leyfoon Tan , Atish Patra , Andrew Jones , Samuel Holland , Anup Patel , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Anup Patel , Conor Dooley Subject: [PATCH v6 07/23] dt-bindings: clock: Add RPMI clock service message proxy bindings Date: Wed, 18 Jun 2025 17:43:42 +0530 Message-ID: <20250618121358.503781-8-apatel@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250618121358.503781-1-apatel@ventanamicro.com> References: <20250618121358.503781-1-apatel@ventanamicro.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add device tree bindings for the RPMI clock service group based message proxy implemented by the SBI implementation (machine mode firmware or hypervisor). The RPMI clock service group is defined by the RISC-V platform management interface (RPMI) specification. Reviewed-by: Conor Dooley Signed-off-by: Anup Patel --- .../bindings/clock/riscv,rpmi-mpxy-clock.yaml | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/riscv,rpmi-mpxy-clock.yaml diff --git a/Documentation/devicetree/bindings/clock/riscv,rpmi-mpxy-clock.yaml b/Documentation/devicetree/bindings/clock/riscv,rpmi-mpxy-clock.yaml new file mode 100644 index 000000000000..70ffc88d0110 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/riscv,rpmi-mpxy-clock.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/riscv,rpmi-mpxy-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: RISC-V RPMI clock service group based message proxy + +maintainers: + - Anup Patel + +description: | + The RISC-V Platform Management Interface (RPMI) [1] defines a + messaging protocol which is modular and extensible. The supervisor + software can send/receive RPMI messages via SBI MPXY extension [2] + or some dedicated supervisor-mode RPMI transport. + + The RPMI specification [1] defines clock service group for accessing + system clocks managed by a platform microcontroller. The SBI implementation + (machine mode firmware or hypervisor) can implement an SBI MPXY channel + to allow RPMI clock service group access to the supervisor software. + + =========================================== + References + =========================================== + + [1] RISC-V Platform Management Interface (RPMI) v1.0 (or higher) + https://github.com/riscv-non-isa/riscv-rpmi/releases + + [2] RISC-V Supervisor Binary Interface (SBI) v3.0 (or higher) + https://github.com/riscv-non-isa/riscv-sbi-doc/releases + +properties: + compatible: + description: + Intended for use by the SBI implementation. + const: riscv,rpmi-mpxy-clock + + mboxes: + maxItems: 1 + description: + Mailbox channel of the underlying RPMI transport. + + riscv,sbi-mpxy-channel-id: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The SBI MPXY channel id to be used for providing RPMI access to + the supervisor software. + +required: + - compatible + - mboxes + - riscv,sbi-mpxy-channel-id + +additionalProperties: false + +examples: + - | + clock-controller { + compatible = "riscv,rpmi-mpxy-clock"; + mboxes = <&rpmi_shmem_mbox 0x8>; + riscv,sbi-mpxy-channel-id = <0x1000>; + }; +... -- 2.43.0