From patchwork Fri Feb 21 16:14:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre TORGUE X-Patchwork-Id: 204459 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=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,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 AFA71C35656 for ; Fri, 21 Feb 2020 16:14:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 81CB224650 for ; Fri, 21 Feb 2020 16:14:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=st.com header.i=@st.com header.b="bmhKR4Jj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729431AbgBUQOp (ORCPT ); Fri, 21 Feb 2020 11:14:45 -0500 Received: from mx07-00178001.pphosted.com ([62.209.51.94]:54919 "EHLO mx07-00178001.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727095AbgBUQOn (ORCPT ); Fri, 21 Feb 2020 11:14:43 -0500 Received: from pps.filterd (m0046037.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 01LGEEAB013474; Fri, 21 Feb 2020 17:14:26 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=st.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=STMicroelectronics; bh=2k+VXll0ozFYAI5ID9m7C2U0U8scssOA0fcMpcXtXIM=; b=bmhKR4Jj2v4OBlocrm1fUnIqFZz6PDmU/lALGE8c/S1Dj2kVFDH/OkRqbjUaGi/V3Tlr K77vwuIaiqGVoqS5DBpCnenFIKPYDi4NFDdJmNclLpvOXHnxJmO2aBTI2KByDUNZWL2o F7B/3m8EP3WB6dnAbZVr6K4kPn3HLdGFvgrQPn/2fhCoI8Ip4GHVF3pz0LIjNIjf93jh QjQELb05eRu1BPqSul0VyjuZRMGWSpzmXVxGCJ4MOFLnFRdJjbP/ZZulWslmUISV/8ZH GlrMSEfOyOe4t3e2o2RgGiWpzlFI55wqk6Iftd0O/ulSgZOFDxwrdRmVcopnkuhCNegL KQ== Received: from beta.dmz-eu.st.com (beta.dmz-eu.st.com [164.129.1.35]) by mx07-00178001.pphosted.com with ESMTP id 2y8ub1r6dt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 21 Feb 2020 17:14:26 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id 0B190100038; Fri, 21 Feb 2020 17:14:22 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag3node2.st.com [10.75.127.8]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id F042E2BE258; Fri, 21 Feb 2020 17:14:21 +0100 (CET) Received: from localhost (10.75.127.50) by SFHDAG3NODE2.st.com (10.75.127.8) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Fri, 21 Feb 2020 17:14:21 +0100 From: Alexandre Torgue To: , Frank Rowand , Masahiro Yamada , Michal Marek , , CC: , Alexandre Torgue , , , , Ian Lepore Subject: [RFC PATCH v2 2/4] of: fdt: print dtb build information Date: Fri, 21 Feb 2020 17:14:16 +0100 Message-ID: <20200221161418.20225-3-alexandre.torgue@st.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200221161418.20225-1-alexandre.torgue@st.com> References: <20200221161418.20225-1-alexandre.torgue@st.com> MIME-Version: 1.0 X-Originating-IP: [10.75.127.50] X-ClientProxiedBy: SFHDAG6NODE3.st.com (10.75.127.18) To SFHDAG3NODE2.st.com (10.75.127.8) X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-02-21_05:2020-02-21,2020-02-21 signatures=0 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This commit prints out DTB build information (build time, dts source version used, ...) if "Build-info" property exists in DTB root node. Signed-off-by: Alexandre Torgue diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 2cdf64d2456f..aa5989039746 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -1224,9 +1224,18 @@ bool __init early_init_dt_scan(void *params) */ void __init unflatten_device_tree(void) { + const char *build_info; + unsigned long dt_root; + __unflatten_device_tree(initial_boot_params, NULL, &of_root, early_init_dt_alloc_memory_arch, false); + /* If available, provide dtb build information */ + dt_root = of_get_flat_dt_root(); + build_info = of_get_flat_dt_prop(dt_root, "build-info", NULL); + if (build_info) + pr_info("%s\n", build_info); + /* Get pointer to "/chosen" and "/aliases" nodes for use everywhere */ of_alias_scan(early_init_dt_alloc_memory_arch);