From mboxrd@z Thu Jan 1 00:00:00 1970 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 58F22C369BA for ; Wed, 16 Apr 2025 15:50:12 +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=y3BV7atvuABYEEZWYNR8lZWvJ+WfpKTMmG/5nr5RLwI=; b=JeydfAUeU7cj85JX/Z5vEu39uR vyO6WpM+xNNQNiuYh6poR/rq0UpEXnSMyV9tuIYrgOmZIS+RRpnH0A2fk9SecMHtXsBa88k+6wYBN jsOypNFY8L2UKLA9bTq85OO5mVg7iQyMab0uRWUDCvkXN26O7AFIimO8+T40B3cv/W6KK4Vwn45zj I20tCFxF/tAWIS9h6NAtd5gui7fheWOnwcYI5NeiHzkUnSKfg2Z7r471dfpx3saX6Wi9c2jCJ+fCV SemIEFCFQhtAMH2kHpDkMqw141Oa07r48MjDMRc022/Ly9avzJK51RGmoYQRUvZBJdfl+t35oDN8v dtqniqYQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u551Q-0000000A8hu-4BUv; Wed, 16 Apr 2025 15:49:56 +0000 Received: from mail.fris.de ([2a01:4f8:c2c:390b::1]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u53kM-00000009tPV-1o6u for linux-arm-kernel@lists.infradead.org; Wed, 16 Apr 2025 14:28:15 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 5AD33BFC16; Wed, 16 Apr 2025 16:28:12 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fris.de; s=dkim; t=1744813692; h=from:subject:date:message-id:to:cc:mime-version: content-transfer-encoding:in-reply-to:references; bh=y3BV7atvuABYEEZWYNR8lZWvJ+WfpKTMmG/5nr5RLwI=; b=nVBXtlnKXK6xffDLyhBxenOKFk6R8+v7xzt1syqAOVzQisPCCrAGZpOczv8GlhEWJXz2G6 Rf5lRlEBuZf3F6f2yQQoJBV/qUZ7YtmDzdOPifbQ6cctOkczxf8vpmQs8uNUUVx0UvOYH2 8+LRw3Hy+oq1ELpiq/AXmpv1ha5vNM0cMDINSTBvRaU1dkYTUoZ+qXAdHOLTe8yyBTtZAs +mMcLGVZwbVvucLN02Btg5zOh3+ihjx6Z93f8fMPUXYsUIAe8rk2IKIn5vdHq0AtQu7L4c 0eTUYMMVLEpz2NWyIPt/LuxsAz17rTZjNwmW/z8rYyibLBPIbCmpUmS0vz+KXw== From: Frieder Schrempf To: Peng Fan , Pankaj Gupta , linux-arm-kernel@lists.infradead.org, Conor Dooley , devicetree@vger.kernel.org, imx@lists.linux.dev, Krzysztof Kozlowski , linux-kernel@vger.kernel.org, Rob Herring , Sascha Hauer , Shawn Guo Cc: Frieder Schrempf , Fabio Estevam , Pengutronix Kernel Team Subject: [RFC PATCH 5/5] arm64: dts: imx93-kontron: Add DMA memory region for ELE firmware Date: Wed, 16 Apr 2025 16:26:24 +0200 Message-ID: <20250416142715.1042363-6-frieder@fris.de> In-Reply-To: <20250416142715.1042363-1-frieder@fris.de> References: <20250416142715.1042363-1-frieder@fris.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Last-TLS-Session-Version: TLSv1.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250416_072814_618909_288F2C1C X-CRM114-Status: UNSURE ( 7.51 ) X-CRM114-Notice: Please train this message. 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: Frieder Schrempf The Edgelock Enclave firmware requires a small 1 MiB memory pool. Reserving this pool makes the ELE firmware driver probe and allows us to use the S400 API. Signed-off-by: Frieder Schrempf --- .../boot/dts/freescale/imx93-kontron-osm-s.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx93-kontron-osm-s.dtsi b/arch/arm64/boot/dts/freescale/imx93-kontron-osm-s.dtsi index 119a16207059..44d98cf812bf 100644 --- a/arch/arm64/boot/dts/freescale/imx93-kontron-osm-s.dtsi +++ b/arch/arm64/boot/dts/freescale/imx93-kontron-osm-s.dtsi @@ -24,6 +24,18 @@ chosen { stdout-path = &lpuart1; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + ele_reserved: memory@90000000 { + compatible = "shared-dma-pool"; + reg = <0 0x90000000 0 0x100000>; + no-map; + }; + }; + reg_usdhc2_vcc: regulator-usdhc2-vcc { compatible = "regulator-fixed"; pinctrl-names = "default"; @@ -116,6 +128,10 @@ &gpio4 { "GPIO_B_0", "CARRIER_PWR_EN"; }; +&hsm0 { + memory-region = <&ele_reserved>; +}; + &lpi2c1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_lpi2c1>; -- 2.49.0