From patchwork Fri May 19 13:38:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kathiravan Thirumoorthy X-Patchwork-Id: 13248355 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B78AC77B75 for ; Fri, 19 May 2023 13:39:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231954AbjESNjl (ORCPT ); Fri, 19 May 2023 09:39:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55574 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231937AbjESNjj (ORCPT ); Fri, 19 May 2023 09:39:39 -0400 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6597C1AC; Fri, 19 May 2023 06:39:27 -0700 (PDT) Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34JBT1Qi021149; Fri, 19 May 2023 13:39:24 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=wV3lPgUUPliSAA1k+HMiysTT4I5LwlRhLihLK9eTSYE=; b=mGreMLkS7F9OEXo6MmhlpSEMKHrFFldl+jm0C5y3i3M/GghYpidJToCe0riQSf9qW8MS N+6Yidbnh1JKzacJnXNtnQAR7k3wJK3RH3wBq5Ix0Hy44XTIqihJ5njh8hKGP1ju2q9B /fLxduh+28aRMBfP223OdKUH4da9f33OAS7mQ49K/9FG6/y2jF8DV6hMzNzGNvI9soDk jMIJ1MUkCXH0Z4myhRPol/ZXE4xfU/4y/6nTUeKC0+Hs62rxp8LfoXwtw13C7L9OHbfo KA9tVmJ/Z4Kvi2pptEeRLAVvcH29ydZtm7ngdMceoPiLEJ6xCl1fm0PbkpV1HLV96pAx 1Q== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3qnwk4herv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 19 May 2023 13:39:24 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 34JDdC4X004440 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 19 May 2023 13:39:13 GMT Received: from kathirav-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.42; Fri, 19 May 2023 06:39:09 -0700 From: Kathiravan T To: Andy Gross , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , , , CC: Kathiravan T Subject: [PATCH V3 3/3] arm64: dts: qcom: ipq5332: add few more reserved memory region Date: Fri, 19 May 2023 19:08:44 +0530 Message-ID: <20230519133844.23512-4-quic_kathirav@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230519133844.23512-1-quic_kathirav@quicinc.com> References: <20230519133844.23512-1-quic_kathirav@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: yyB_SA3ce57Mgyr5ziU-F_zV-enKmgaZ X-Proofpoint-ORIG-GUID: yyB_SA3ce57Mgyr5ziU-F_zV-enKmgaZ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-05-19_08,2023-05-17_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 clxscore=1015 impostorscore=0 mlxscore=0 phishscore=0 priorityscore=1501 malwarescore=0 lowpriorityscore=0 adultscore=0 mlxlogscore=658 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2304280000 definitions=main-2305190115 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org In IPQ SoCs, bootloader will collect the system RAM contents upon crash for the post morterm analysis. If we don't reserve the memory region used by bootloader, obviously linux will consume it and upon next boot on crash, bootloader will be loaded in the same region, which will lead to loose some of the data, sometimes we may miss out critical information. So lets reserve the region used by the bootloader. Similarly SBL copies some data into the reserved region and it will be used in the crash scenario. So reserve 1MB for SBL as well. While at it, drop the size padding in the smem memory region. Signed-off-by: Kathiravan T --- Changes in V3: - s/u-boot/bootloader/ in commit msg and in the code as suggested by Bhupesh Changes in V2: - Dropped the size padding in smem memory region arch/arm64/boot/dts/qcom/ipq5332.dtsi | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/ipq5332.dtsi b/arch/arm64/boot/dts/qcom/ipq5332.dtsi index 753581e60604..ba1d20fd8059 100644 --- a/arch/arm64/boot/dts/qcom/ipq5332.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq5332.dtsi @@ -114,6 +114,16 @@ #size-cells = <2>; ranges; + bootloader@4a100000 { + reg = <0x0 0x4a100000 0x0 0x400000>; + no-map; + }; + + sbl@4a500000 { + reg = <0x0 0x4a500000 0x0 0x100000>; + no-map; + }; + tz_mem: tz@4a600000 { reg = <0x0 0x4a600000 0x0 0x200000>; no-map; @@ -121,7 +131,7 @@ smem@4a800000 { compatible = "qcom,smem"; - reg = <0x0 0x4a800000 0x0 0x00100000>; + reg = <0x0 0x4a800000 0x0 0x100000>; no-map; hwlocks = <&tcsr_mutex 0>;