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=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, T_DKIMWL_WL_HIGH,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 63117C433F5 for ; Wed, 29 Aug 2018 18:59:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1BDB520652 for ; Wed, 29 Aug 2018 18:59:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=broadcom.com header.i=@broadcom.com header.b="DD0+518q" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1BDB520652 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=broadcom.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728327AbeH2W6E (ORCPT ); Wed, 29 Aug 2018 18:58:04 -0400 Received: from mail-qt0-f193.google.com ([209.85.216.193]:43071 "EHLO mail-qt0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727335AbeH2W6D (ORCPT ); Wed, 29 Aug 2018 18:58:03 -0400 Received: by mail-qt0-f193.google.com with SMTP id g53-v6so6997132qtg.10 for ; Wed, 29 Aug 2018 11:59:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding:content-language; bh=aj7vKNoh1Ub9jx1gxpkiw3iLReAJmQvV6UDu1lFdRFo=; b=DD0+518qXZyd9QVodeotIAU7Fg7rkvWWhQfvU067kLIWGK+A3wHbhW5NAxBeRpiduG wDZ2grNUtOL69kNkRlf5Rout5P12+mUNi12o592wJc8IxgFKbWH6eYyCSqpcwkvdH7zc i35YdMv1ieTDZn87HPamK6D+QpePUWhI0EXek= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=aj7vKNoh1Ub9jx1gxpkiw3iLReAJmQvV6UDu1lFdRFo=; b=Sr/v6wL/v/pUUP1te4gWto8TiEzEJURuwVBHaOXLVho4KuBusejDoABtNWosS5CIuy kBflENxahPsc5k2EN+A4F6YChPLGVxeXCohuOKnEPgCWyxRn4trNJqWv9xQa6i1T+pj4 zLMSGCDADuLvUHtCAMXl1cngUM9RiiqXA0yJq2ETEkRlRCg++git8q/MLBwPR6iULDFL lxbr02banFHIOoMTb56Nz6ekeb7w1L0tUhWXUi/R6OxvRWEK5wydq+yXTCEhcb82/ny2 kPuwWcKSAskuDp5LiD65A8eQzIb8iKdJaaM686Mu/T81zZy8QXNvszLPEG6CIIvzLIIT bCUQ== X-Gm-Message-State: APzg51AsNfSmSDR9pT44sAf/DRZS63tvV2s4JkPDnj9hMazWkU2RDrtS XbJZa2kvu03N6wZUiDhPGDjxV22k9VtkUA== X-Google-Smtp-Source: ANB0Vda03ykvSH0Tj822rSSzaId2iV++iZsilsDM9orxyWU1ENlRno1rdV2OzsepAUKWzr7LhoOQfQ== X-Received: by 2002:aed:2e22:: with SMTP id j31-v6mr3218654qtd.180.1535569188642; Wed, 29 Aug 2018 11:59:48 -0700 (PDT) Received: from [10.136.13.65] ([192.19.228.250]) by smtp.gmail.com with ESMTPSA id d67-v6sm676223qkc.90.2018.08.29.11.59.46 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 29 Aug 2018 11:59:48 -0700 (PDT) Subject: Re: [PATCH] arm64: defconfig: enable EFI_ARMSTUB_DTB_LOADER To: Olof Johansson , Ard Biesheuvel Cc: Catalin Marinas , Will Deacon , Arnd Bergmann , BCM Kernel Feedback , Linux ARM Mailing List , Linux Kernel Mailing List References: <1535563287-24803-1-git-send-email-scott.branden@broadcom.com> From: Scott Branden Message-ID: Date: Wed, 29 Aug 2018 11:59:36 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Olof, On 18-08-29 11:44 AM, Olof Johansson wrote: > Hi, > > On Wed, Aug 29, 2018 at 10:21 AM, Scott Branden > wrote: >> Enable EFI_ARMSTUB_DTB_LOADER to add support for the dtb= command line >> parameter to function with efi loader. >> >> Required to boot on existing bootloaders that do not support devicetree >> provided by the platform or by the bootloader. >> >> Fixes: 3d7ee348aa41 ("efi/libstub/arm: Add opt-in Kconfig option for the DTB loader") >> Signed-off-by: Scott Branden > Why did Ard create an option for this if it's just going be turned on > in default configs? Doesn't make sense to me. > > It would help to know what firmware still is crippled and how common > it is, since it's been a few years that this has been a requirement by > now. Broadcom NS2 and Stingray in current development and production need this option in the kernel enabled in order to boot. > > > -Olof