From patchwork Wed Jun 16 17:12:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aswath Govindraju X-Patchwork-Id: 12325737 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=-16.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 DBAB4C48BE6 for ; Wed, 16 Jun 2021 17:14:49 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id B0017610A1 for ; Wed, 16 Jun 2021 17:14:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B0017610A1 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=ti.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=f19pxiZRZtVUGiXNlT8xUiFGdFYHTCKpztPdZlQt0Ic=; b=NgWYcLm4F8ee+1 dZrcJiE8sx82742jEVAUVIWggeFMrZcG3+e2QQMvs/481M+l3hYAApUc03+FWz2k+PEuSDbMtM1AE HUNV1cAd6pQP6DFHHkSerw0lXLLJPSzJkZ7AUa0YQUdc8dyzr4YvoJswuIepjUQ3+zYDBdhMjJK/4 dO7WlNLaUlkEECfX4zdbb8SRTGqeBTWuFwccbk1GKXTZAmXC+Y+Loyxu1eZ4VT2PUYDLiS5aX1Gdv VASqB9/CjbIDcgd+Ds8t6lBdmKeFYgxStcDNT9nE2zqbYczajO27HLeD00KlWfciFKGfx1aNkErBE y9p2UQLnvgv6THZCluOw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ltZ6L-007GSq-4W; Wed, 16 Jun 2021 17:13:17 +0000 Received: from fllv0015.ext.ti.com ([198.47.19.141]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ltZ6F-007GRF-VW for linux-arm-kernel@lists.infradead.org; Wed, 16 Jun 2021 17:13:13 +0000 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 15GHD8LQ020064; Wed, 16 Jun 2021 12:13:08 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1623863588; bh=BH72bZyeNH/FYvgeSqvxbowmWgkRNsupvwrEn3isOgc=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=pjcHGqySMHvTAopbKNW6uWs0ZrfW+5g8ox2VQ/JGw0kMoqOjTaamUIihCwi0qp59O TNHOlUHJOxc6oYcYxAYR1APXt3ySR/kzqAyT2M2j3wXFNnDhwCBgHNqm3JGvZ2mRUw cT4cGbG3wIO7TJVyMZidBI9MRLbDozLHQu8m5gZs= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 15GHD81Y011842 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 16 Jun 2021 12:13:08 -0500 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE113.ent.ti.com (157.170.170.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2; Wed, 16 Jun 2021 12:13:04 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2 via Frontend Transport; Wed, 16 Jun 2021 12:13:04 -0500 Received: from gsaswath-HP-ProBook-640-G5.dal.design.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 15GHCSuD106909; Wed, 16 Jun 2021 12:12:58 -0500 From: Aswath Govindraju To: Subject: [PATCH v5 2/3] arm64: dts: ti: k3-am64-main: Reserve OCMRAM for DMSC-lite and secure proxy communication Date: Wed, 16 Jun 2021 22:42:23 +0530 Message-ID: <20210616171224.24635-3-a-govindraju@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210616171224.24635-1-a-govindraju@ti.com> References: <20210616171224.24635-1-a-govindraju@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210616_101312_148233_1607A299 X-CRM114-Status: GOOD ( 10.47 ) 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: , Cc: Nishanth Menon , devicetree@vger.kernel.org, Vignesh Raghavendra , Tero Kristo , Lokesh Vutla , linux-kernel@vger.kernel.org, Kishon Vijay Abraham I , Rob Herring , Aswath Govindraju , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The final 128KB in SRAM is reserved by default for DMSC-lite code and secure proxy communication buffer. The memory region used for DMSC-lite code can be optionally freed up by secure firmware API[1]. However, the buffer for secure proxy communication is not configurable. This default hardware configuration is unique for AM64. Therefore, indicate the area reserved for DMSC-lite code and secure proxy communication buffer in the oc_sram device tree node. [1] - http://downloads.ti.com/tisci/esd/latest/6_topic_user_guides/security_handover.html#triggering-security-handover Signed-off-by: Aswath Govindraju Reviewed-by: Suman Anna --- arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi index e918afc2298e..27888ee6f039 100644 --- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi @@ -27,6 +27,14 @@ tfa-sram@0 { reg = <0x0 0x20000>; }; + + dmsc-sram@1e0000 { + reg = <0x1e0000 0x1c000>; + }; + + sproxy-sram@1fc000 { + reg = <0x1fc000 0x4000>; + }; }; main_conf: syscon@43000000 {