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 X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, 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 29624C433DF for ; Tue, 25 Aug 2020 17:22:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 05C942076C for ; Tue, 25 Aug 2020 17:22:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="Z+eSuKqG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726222AbgHYRWI (ORCPT ); Tue, 25 Aug 2020 13:22:08 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:34742 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726336AbgHYRWE (ORCPT ); Tue, 25 Aug 2020 13:22:04 -0400 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 07PHM0KN106195; Tue, 25 Aug 2020 12:22:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1598376120; bh=8BlAbogxUh4L5xld/guoACIkEBpgim3x52fTL7GwpSw=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Z+eSuKqGcwnBVJPWy+Nf3VBbpGil+BrLeAIAnW+93vtdR1xEoQ2WHNSMbk39Bgc00 YcBYjz4XqV+y0hIoP7McvK+ny8OrHcQBDJ7QQbzpoK28rM3SXKibsoILRZyN51mF+k P3nS2xEnDNL1KfVyRFS3a8F4uXVt8t6Lq3Lqd9ys= Received: from DFLE113.ent.ti.com (dfle113.ent.ti.com [10.64.6.34]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 07PHM0OR083400 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 25 Aug 2020 12:22:00 -0500 Received: from DFLE101.ent.ti.com (10.64.6.22) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Tue, 25 Aug 2020 12:22:00 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DFLE101.ent.ti.com (10.64.6.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Tue, 25 Aug 2020 12:22:00 -0500 Received: from lelv0597.itg.ti.com (lelv0597.itg.ti.com [10.181.64.32]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 07PHM06R074787; Tue, 25 Aug 2020 12:22:00 -0500 Received: from localhost ([10.250.70.134]) by lelv0597.itg.ti.com (8.14.7/8.14.7) with ESMTP id 07PHM0lp098619; Tue, 25 Aug 2020 12:22:00 -0500 From: Suman Anna To: Nishanth Menon , Tero Kristo CC: , , Suman Anna Subject: [PATCH v2 8/8] arm64: dts: ti: k3-j721e-som-p0: Reserve memory for IPC between RTOS cores Date: Tue, 25 Aug 2020 12:21:45 -0500 Message-ID: <20200825172145.13186-9-s-anna@ti.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200825172145.13186-1-s-anna@ti.com> References: <20200825172145.13186-1-s-anna@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add a reserved memory node to reserve a portion of the DDR memory to be used for performing inter-processor communication between all the remote processors running RTOS on the TI J721E EVM boards. 28 MB of memory is reserved for this purpose, and this accounts for all the vrings and vring buffers between all the possible pairs of remote processors. Signed-off-by: Suman Anna --- v2: No changes v1: https://patchwork.kernel.org/patch/11725341/ arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi index 0e28be492ac2..d69d90c8b5e3 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi @@ -61,6 +61,12 @@ c71_0_memory_region: c71-memory@a8100000 { reg = <0x00 0xa8100000 0x00 0xf00000>; no-map; }; + + rtos_ipc_memory_region: ipc-memories@aa000000 { + reg = <0x00 0xaa000000 0x00 0x01c00000>; + alignment = <0x1000>; + no-map; + }; }; }; -- 2.28.0