From patchwork Wed Aug 28 18:01:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Kiszka X-Patchwork-Id: 13781689 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4757CC636ED for ; Wed, 28 Aug 2024 18:05:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=1DQ6+e1yNgx7fPFXiME9GGedSD4AIhzkiP5atR2A8jg=; b=MLHnECKBAuMpmUwle0xogA14rC /77wHQ0Aa2Vz1ULEMw0mWv/fl2elql9MFFVyMJMtuTzYG4ykMBV3Ufir/zAbig60eQDytW+4PjISA dHbTGJ/Rs/Ar1yUaD3YyzXAAowe3tHnth01gi8auTKGGyjvW8fHC62nCX7EuJ55ctw9D4Mb4dm+xL H6GisP6CFiMk5hpgDTzej3P6kXmcBUODhhH9fhf3bGs8+m3JLau2SJOdkXz66yd+Wp0h5leujTHH7 HpcRHMr9/0gVDPnWU2IuF3nsB86gqXAb5U9cHUVYb6sXkbeUPITDKagfCW5QQzaPcOv68+butDmDP u2poXTkQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sjN2w-0000000GTo9-1szs; Wed, 28 Aug 2024 18:05:30 +0000 Received: from mta-64-226.siemens.flowmailer.net ([185.136.64.226]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sjMz0-0000000GSe5-3tP4 for linux-arm-kernel@lists.infradead.org; Wed, 28 Aug 2024 18:01:29 +0000 Received: by mta-64-226.siemens.flowmailer.net with ESMTPSA id 20240828180122313c191fcf0a9d2fef for ; Wed, 28 Aug 2024 20:01:22 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=fm1; d=siemens.com; i=jan.kiszka@siemens.com; h=Date:From:Subject:To:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Cc:References:In-Reply-To; bh=1DQ6+e1yNgx7fPFXiME9GGedSD4AIhzkiP5atR2A8jg=; b=LkzBHY2WZptHIBguBm28xT56FIz0X2QId2s+vE+EL1hr1OWWTyNA8TNkCK1kM9aWLMbEDN UvjLCw9ZdMjYZyFD6grtHcFNlA+A1TpvX27lW09OoMzZDKVBsjdmPlcf1tpTNggBo3vMWc7r zDhefWT4Vr6kFxlYlPJ0x5XUkjvcVDrnjJVxi/osimU5fgmTVLlBksQPALBvFC8PSt5OYh7C api2OsIJxPDq7bMf4dmWvasUhBg5IzoUCU6tfZFna3GazBWHW+l5yj/rDPyc0BDuefrVy9/t QPckoy6bPrK/GCxf0cAhFvt0At6yisU4lzVVo/HJhbyNSkRM3Qrvifsg==; From: Jan Kiszka To: Nishanth Menon , Santosh Shilimkar , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, Siddharth Vadapalli , Bao Cheng Su , Hua Qian Li , Diogo Ivo Subject: [PATCH v3 1/7] dt-bindings: soc: ti: Add AM65 peripheral virtualization unit Date: Wed, 28 Aug 2024 20:01:14 +0200 Message-ID: In-Reply-To: References: MIME-Version: 1.0 X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-294854:519-21489:flowmailer X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240828_110127_457618_9E2282FA X-CRM114-Status: GOOD ( 11.85 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Jan Kiszka The PVU allows to define a limited set of mappings for incoming DMA requests to the system memory. It is not a real IOMMU, thus hooked up under the TI SoC bindings. Signed-off-by: Jan Kiszka Reviewed-by: Krzysztof Kozlowski --- .../bindings/soc/ti/ti,am654-pvu.yaml | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml diff --git a/Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml b/Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml new file mode 100644 index 000000000000..e4a5fc47d674 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/ti/ti,am654-pvu.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +# Copyright (c) Siemens AG, 2024 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/soc/ti/ti,am654-pvu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI AM654 Peripheral Virtualization Unit + +maintainers: + - Jan Kiszka + +properties: + compatible: + enum: + - ti,am654-pvu + + reg: + maxItems: 2 + + reg-names: + items: + - const: cfg + - const: tlbif + + interrupts: + items: + - description: fault interrupt + + interrupt-names: + items: + - const: pvu + +required: + - compatible + - reg + - interrupts + - interrupt-names + +additionalProperties: false + +examples: + - | + iommu@30f80000 { + compatible = "ti,am654-pvu"; + reg = <0x30f80000 0x1000>, + <0x36000000 0x100000>; + reg-names = "cfg", "tlbif"; + interrupts-extended = <&intr_main_navss 390>; + interrupt-names = "pvu"; + };