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: 461546 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, 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 3F2B6C48BE5 for ; Wed, 16 Jun 2021 17:13:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 17BC761057 for ; Wed, 16 Jun 2021 17:13:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231185AbhFPRPU (ORCPT ); Wed, 16 Jun 2021 13:15:20 -0400 Received: from fllv0015.ext.ti.com ([198.47.19.141]:52068 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230167AbhFPRPU (ORCPT ); Wed, 16 Jun 2021 13:15:20 -0400 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 CC: Suman Anna , Lokesh Vutla , Vignesh Raghavendra , Kishon Vijay Abraham I , Aswath Govindraju , Nishanth Menon , Tero Kristo , Rob Herring , , , 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 To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.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 {