From patchwork Thu Feb 20 18:15:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxime Ripard X-Patchwork-Id: 204524 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 773B8C11D19 for ; Thu, 20 Feb 2020 18:15:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 54ECA2467B for ; Thu, 20 Feb 2020 18:15:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=cerno.tech header.i=@cerno.tech header.b="c6kpalwz"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="JZGIfGvq" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728224AbgBTSPW (ORCPT ); Thu, 20 Feb 2020 13:15:22 -0500 Received: from new4-smtp.messagingengine.com ([66.111.4.230]:46173 "EHLO new4-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728162AbgBTSPW (ORCPT ); Thu, 20 Feb 2020 13:15:22 -0500 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailnew.nyi.internal (Postfix) with ESMTP id C512463C6; Thu, 20 Feb 2020 13:15:21 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Thu, 20 Feb 2020 13:15:21 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=6SinJITdD/n69 eIlJpnmxjWDDOpwI1CwjSpv52GcRJQ=; b=c6kpalwzeA2Vi5zAy/Bxin8/SMH7H yHKoqO+DHJ2tIq1qWAaea40qxAlPxndXD1s4i6jk9jgJoZKZSjp6x6E/jbRXybnW El8+urLpmIiJej91r3cmiiQueIyaW9iXo5TPuB3izIgl+ZYg6OIKJ24G8EPGWGO5 NTaZ7D/F/OvmVMuAA3QJ2D7ABVshc4BZun33KqbykmlqJ/2CBdkeHJ6deiQJOsT7 anwfty/nfdRKXz9tifKknqMU3JDTClugpzSNcu/LRtVWKCq+8b06bdcNGqA3dr/9 TR7czPN2j8llaJb018m2UcqFcu9J3W4Ag29dMQsQYmGNlWC4rwTNdV1Fw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm2; bh=6SinJITdD/n69eIlJpnmxjWDDOpwI1CwjSpv52GcRJQ=; b=JZGIfGvq bIj1g4UfTjIPXP39HHTXNAbRleEIKSjsuGOjRrhyjvTOq+ljQtDlxeLgaaG49hCs jIquU0T+2UHBEcJXDj39MYkrzeHRbBNrCKt2Gv9ParG+/ty8ylDxdXPddJCp6cmv mPlTC6QFGqIxTvXVPJXCkRCpb72XmBtR7zBZxQzAlKh1HJzgV2ohlajw0Ja7YUCS RB+M7XNEUUhGVxJIXkRRt/Nod41BVYuoBsAYS+dGpS21qvmgQgU4YJtasQr9hy5m OCuZhpCjjh+m4i9aJllByzNDqD3/IFVNWUfdaGBQwAMwUEf681y7yS0AGzr3m+Fm uSbivbMi+oX7Tw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedugedrkedvgdduudefucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne govehorghsthgrlhdqhfeguddvqddtvdculdduhedtmdenucfjughrpefhvffufffkofgj fhgggfestdekredtredttdenucfhrhhomhepofgrgihimhgvucftihhprghrugcuoehmrg igihhmvgestggvrhhnohdrthgvtghhqeenucffohhmrghinhepuggvvhhitggvthhrvggv rdhorhhgnecukfhppeeltddrkeelrdeikedrjeeinecuvehluhhsthgvrhfuihiivgeptd enucfrrghrrghmpehmrghilhhfrhhomhepmhgrgihimhgvsegtvghrnhhordhtvggthh X-ME-Proxy: Received: from localhost (lfbn-tou-1-1502-76.w90-89.abo.wanadoo.fr [90.89.68.76]) by mail.messagingengine.com (Postfix) with ESMTPA id 6662F3060D1A; Thu, 20 Feb 2020 13:15:21 -0500 (EST) From: Maxime Ripard To: Joerg Roedel , Chen-Yu Tsai , Maxime Ripard , Mark Rutland , Rob Herring , Frank Rowand Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, Maxime Ripard , Rob Herring Subject: [PATCH v2 1/4] dt-bindings: iommu: Add Allwinner H6 IOMMU bindings Date: Thu, 20 Feb 2020 19:15:13 +0100 Message-Id: <7b1d8b083283915befc9b9be4a92631253011a8a.1582222496.git-series.maxime@cerno.tech> X-Mailer: git-send-email 2.24.1 In-Reply-To: References: MIME-Version: 1.0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The Allwinner H6 has introduced an IOMMU. Let's add a device tree binding for it. Reviewed-by: Rob Herring Signed-off-by: Maxime Ripard --- Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml diff --git a/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml b/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml new file mode 100644 index 000000000000..5e125cf2a88b --- /dev/null +++ b/Documentation/devicetree/bindings/iommu/allwinner,sun50i-h6-iommu.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iommu/allwinner,sun50i-h6-iommu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner H6 IOMMU Device Tree Bindings + +maintainers: + - Chen-Yu Tsai + - Maxime Ripard + +properties: + "#iommu-cells": + const: 1 + description: + The content of the cell is the master ID. + + compatible: + const: allwinner,sun50i-h6-iommu + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + resets: + maxItems: 1 + +required: + - "#iommu-cells" + - compatible + - reg + - interrupts + - clocks + - resets + +additionalProperties: false + +examples: + - | + #include + #include + + #include + #include + + iommu: iommu@30f0000 { + compatible = "allwinner,sun50i-h6-iommu"; + reg = <0x030f0000 0x10000>; + interrupts = ; + clocks = <&ccu CLK_BUS_IOMMU>; + resets = <&ccu RST_BUS_IOMMU>; + #iommu-cells = <1>; + }; + +...