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=-11.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 C4D78C433E6 for ; Fri, 12 Feb 2021 21:02:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9400564EAA for ; Fri, 12 Feb 2021 21:02:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232052AbhBLVCP (ORCPT ); Fri, 12 Feb 2021 16:02:15 -0500 Received: from mail.kernel.org ([198.145.29.99]:57918 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232054AbhBLVCC (ORCPT ); Fri, 12 Feb 2021 16:02:02 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6A68864E05; Fri, 12 Feb 2021 21:01:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1613163681; bh=pn5uwII/6r/H6VP+qSj25AE7juU0clcUCoKS/ZUelsw=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=fezGQO4TkSSBALxJ72g3iRQRtYthvdVjCSSO2pwqAqGfei86fUjhgnZ6QFP3wJHLx gnSr/0NgANKbovmMgjXi+oX4TpM9hW75NEGb0OYe3D4J1jgeVb3kRdDDOvfOJea9dV G1Cw16JscUCqHvnhm/Co/7TvvD48AKca+R0ypSs8XHXWEy/62fYftAXki6qGs1IrY0 5u7AC7jhufXrqJihJKrmj2qNZCP+paF3bBdQ7nT4MrayMOvmQOyv3SLKJkuou70/VT r5IQNwZ0I5zhZb+4Up3z2KhYrx9FG5KSZzdPhTTh4i1SeEPr8ONzVGBh9XdF+ri4DA Af54RlTGlMCJA== Received: by mail-ej1-f42.google.com with SMTP id z19so1355188eju.9; Fri, 12 Feb 2021 13:01:21 -0800 (PST) X-Gm-Message-State: AOAM531wmQopXZ3XVSaZPh8IbfNimM8aFt8D5JuvlxsMfmS9oNagRRyT RsI7pI5N7pb+ptMSxYnAV/LjZl5rTgn/0OAbfg== X-Google-Smtp-Source: ABdhPJyjRrUX7Iabe7BDDsQqvDVgcHeC2eL7Z0J6/ghXMUMjyGNjbakaaIGjUuZK2ljNajVT9UYHC/wcmBsdAErn91A= X-Received: by 2002:a17:906:d1d0:: with SMTP id bs16mr4962876ejb.468.1613163680046; Fri, 12 Feb 2021 13:01:20 -0800 (PST) MIME-Version: 1.0 References: <20210212033120.GA100407@roeck-us.net> <20210212151725.GA57042@roeck-us.net> In-Reply-To: <20210212151725.GA57042@roeck-us.net> From: Rob Herring Date: Fri, 12 Feb 2021 15:01:08 -0600 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH] scripts/dtc: Update to upstream version v1.6.0-51-g183df9e9c2b9 To: Guenter Roeck , Michal Simek Cc: "linux-kernel@vger.kernel.org" , Frank Rowand , devicetree@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 12, 2021 at 9:17 AM Guenter Roeck wrote: > > On Fri, Feb 12, 2021 at 08:16:04AM -0600, Rob Herring wrote: > > On Thu, Feb 11, 2021 at 9:31 PM Guenter Roeck wrote: > > > > > > Hi Rob, > > > > > > On Wed, Feb 03, 2021 at 03:26:03PM -0600, Rob Herring wrote: > > > > This adds the following commits from upstream: > > > > > > > > 183df9e9c2b9 gitignore: Ignore the swp files > > > > 0db6d09584e1 gitignore: Add cscope files > > > > 307afa1a7be8 Update Jon Loeliger's email > > > > ca16a723fa9d fdtdump: Fix gcc11 warning > > > > 64990a272e8f srcpos: increase MAX_SRCFILE_DEPTH > > > > 163f0469bf2e dtc: Allow overlays to have .dtbo extension > > > > 3b01518e688d Set last_comp_version correctly in new dtb and fix potential version issues in fdt_open_into > > > > f7e5737f26aa tests: Fix overlay_overlay_nosugar test case > > > > 7cd5d5fe43d5 libfdt: Tweak description of assume-aligned load helpers > > > > a7c404099349 libfdt: Internally perform potentially unaligned loads > > > > bab85e48a6f4 meson: increase default timeout for tests > > > > f8b46098824d meson: do not assume python is installed, skip tests > > > > 30a56bce4f0b meson: fix -Wall warning > > > > 5e735860c478 libfdt: Check for 8-byte address alignment in fdt_ro_probe_() > > > > 67849a327927 build-sys: add meson build > > > > 05874d08212d pylibfdt: allow build out of tree > > > > 3bc3a6b9fe0c dtc: Fix signedness comparisons warnings: Wrap (-1) > > > > e1147b159e92 dtc: Fix signedness comparisons warnings: change types > > > > 04cf1fdc0fcf convert-dtsv0: Fix signedness comparisons warning > > > > b30013edb878 libfdt: Fix kernel-doc comments > > > > > > > > Signed-off-by: Rob Herring > > > > > > This patch causes my little-endian microblaze qemu emulations to fail > > > silently (no console output) in next-20210211. Reverting this patch > > > together with "scripts: dtc: Build fdtoverlay tool" fixes the problem. > > > > My guess would be something in libfdt. Maybe 7cd5d5fe43d5 or > > a7c404099349, though that should return to historical behavior. > > > > Can you give me the qemu command line and kernel cfg? > > > I copied everything you should need to build a kernel (including toolchain) > to http://server.roeck-us.net/qemu/microblazeel/ > > [ wow, I really need to update that compiler ] I can't seem to get BE/LE nor reverted or not working. It's always dying in microblaze_cache_init() based on the last print. It's your config, but gcc 10.1.0 off of kernel.org. There is at least one possible problem here that the FDT may only be 4 byte aligned. The assumption is 8 bytes to not have misaligned accesses (and only for 64-bit accesses if 4 byte aligned). That's an issue with the qemu image loading depending on the sizes and combination of images loaded. That doesn't explain your failure though. As the initrd is a multiple of 8 bytes, you should be fine. Rob