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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 BB132C47254 for ; Fri, 8 May 2020 13:38:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A4BEB2070B for ; Fri, 8 May 2020 13:38:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726908AbgEHNi4 (ORCPT ); Fri, 8 May 2020 09:38:56 -0400 Received: from mail-oi1-f196.google.com ([209.85.167.196]:35154 "EHLO mail-oi1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726736AbgEHNit (ORCPT ); Fri, 8 May 2020 09:38:49 -0400 Received: by mail-oi1-f196.google.com with SMTP id o7so8449436oif.2 for ; Fri, 08 May 2020 06:38:47 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=cVLrXPsgHTwrpYewcNCPrb8dvyyVm6F0RkHrzmD7Wq8=; b=PLPr7w4MWYfQ3cA8TgMmhSxby+vYNGQGP2zTWd7o5P2mhZOaiHysNrGQDIN0iiswFr Y2q1SNO8TNwVFmZ91LYUkhue/YsNBbt6+79+k9p1ttmjRtw6j2MxI4Uoz8ArlDMw2hgQ yJbTpZjufd7wsYRyCdmGN+EviS4DvyDpShYAjSbPf5ljNE8H/LGpn6KnIocSUtwyJ6wm ADBVLSuRTh4TWQYw32YzSAR4ZUz5ymTSy3D03F97Pu0NvLkNxlc+aGbhO+pOjidf5VFZ +nP4RNrcHDgmDnf01gKzHelXxIgijJdgB7Yu4PDrMARpS9c0/VdX153w5DPS4cEW1QbU wdvQ== X-Gm-Message-State: AGi0PubiNfYVXArV2JtDyg+Mf5xusIlx5HLgpVkT2ySxU2uN8tF88L2J bDep8y0sxUyoZoQjC/xdlPxp9dhR6sPFDSTtUVA= X-Google-Smtp-Source: APiQypIt/NJtbxKsIctJ0g6RMdpCsn9IJtKNhLYXR42RNLxIQc88+xuJ9tmpNoq3FDSQIO8GoYtQWyr1idGt+kJgHrI= X-Received: by 2002:aca:d50f:: with SMTP id m15mr10449088oig.54.1588945127549; Fri, 08 May 2020 06:38:47 -0700 (PDT) MIME-Version: 1.0 References: <20200507080528.547-1-geert+renesas@glider.be> In-Reply-To: From: Geert Uytterhoeven Date: Fri, 8 May 2020 15:38:36 +0200 Message-ID: Subject: Re: [PATCH/RFC] ARM: dts: rza2mevb: Upstream Linux requires SDRAM To: Nicolas Pitre Cc: Magnus Damm , Chris Brandt , Arnd Bergmann , Russell King , Linux-Renesas , Linux ARM Content-Type: text/plain; charset="UTF-8" Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org "" Hi Nicolas, On Thu, May 7, 2020 at 7:07 PM Nicolas Pitre wrote: > On Thu, 7 May 2020, Geert Uytterhoeven wrote: > > On Thu, May 7, 2020 at 4:58 PM Nicolas Pitre wrote: > > > On Thu, 7 May 2020, Geert Uytterhoeven wrote: > > > > As upstream Linux does not support XIP, > > > > > > What? > > > > Not for an ARM v7 platform: > > > > config XIP_KERNEL > > bool "Kernel Execute-In-Place from ROM" > > depends on !ARM_LPAE && !ARCH_MULTIPLATFORM > > Of course this is an artificial limitation. > > You can have XIP on ARMv7 if you want. It requires some kconfig > tweaks though. I am happy to hear that! Do you have any guidance how to implement that? So far our tries have failed. "[PATCH 0/2] ARM: ARMv7 (with MMU) XIP without ARCH_MULTIPLATFORM" http://lore.kernel.org/r/20170209033044.19513-1-chris.brandt@renesas.com "[PATCH] ARM: Allow MULTIPLATFOR to select XIP https://lore.kernel.org/linux-arm-kernel/1455816310-11308-1-git-send-email-chris.brandt@renesas.com/ "[PATCH 0/2] ARM: xip: Get XIP for ARMv7 working again http://lore.kernel.org/r/1437057434-1616-1-git-send-email-chris.brandt@renesas.com "XIP_KERNEL and !ARCH_MULTIPLATFORM http://lore.kernel.org/r/HK2PR06MB0561CC16649A9C1F341CC6648A030@HK2PR06MB0561.apcprd06.prod.outlook.com ... Thanks, and have a nice weekend Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds 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=-0.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no 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 58E0DC38A2A for ; Fri, 8 May 2020 13:38:56 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 286D62070B for ; Fri, 8 May 2020 13:38:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="bTCPX1Rw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 286D62070B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-m68k.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=VT9PucvzihHSVMyD8tk5V6H1FxF8qrlculXcQFgOnxY=; b=bTCPX1RwiR0ZSE uKmulPLN8opQqU9cwVEBO0qhBCOXMMspKNDvHWHPjEGo1lt+5e8RYsawcaYdZPUS8G5DMfwtfxsi4 vjoqAiOAx2szXsIqiZdtQ1M9/3Gz69UzF7xzUMUicoCpZh4Yk6siAnBsleYDrBT0J6uw4t3mhm04R R2wZFCQmlPPo9s8LzuEkOY49pI/nLlJT6c+uL8IeAV9lAFmmgE3Ub6RdAdTbHyH96Tz0nERBake6R aYEBAZNtziU4d8EqKswWZoc5pYGxKrFzeVd72YjpkuYaeFz4fcUs+aQH23QPlsZc1J3uhLJR3VC80 Ba74bXb97WKzvVEgoAfA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jX3DJ-0007Ql-5P; Fri, 08 May 2020 13:38:53 +0000 Received: from mail-oi1-f195.google.com ([209.85.167.195]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jX3DF-0007QL-Gv for linux-arm-kernel@lists.infradead.org; Fri, 08 May 2020 13:38:51 +0000 Received: by mail-oi1-f195.google.com with SMTP id c12so7424051oic.1 for ; Fri, 08 May 2020 06:38:48 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=cVLrXPsgHTwrpYewcNCPrb8dvyyVm6F0RkHrzmD7Wq8=; b=D7WeVrfEZ5vnFtOLXBLNaV3SMN8W5/9p0YCa3HNcAIbOn1kmxoWdObG1VRsojGPmYc Gihs1OSbM8xNGdQ0XYoyXccwVTSG+O/3t1R5OqyoToVmXdmzzgbk9lld5+ABHoKMtUXO XsvNYQwaadkyZuxTXSIEpdpl329ID9ha7YL5x+Oz7LOOSgU+F0xGGDzL9szHJLz6xFw2 AXuj1W7t6dEhhRrUBVz3Z3Ye2vKefvBiIDQulMNmRPVSka7XchPrjfNEWp3vbEqkDCvg MAq9CJtKMwvJ6FsZnzsEQTCrtU9K3seu5wluNK0uyi9w1A94f4aTlMYr7SzeZYdT8xng QhKQ== X-Gm-Message-State: AGi0Puanc/1nIqeApVsvjFGc3jkBdif+84xQZRqRvxhrkDgQR2mg0uk5 CJkRGSAyp6KA9hLQLjbsm9pv3Ashsj38gnp96MQ= X-Google-Smtp-Source: APiQypIt/NJtbxKsIctJ0g6RMdpCsn9IJtKNhLYXR42RNLxIQc88+xuJ9tmpNoq3FDSQIO8GoYtQWyr1idGt+kJgHrI= X-Received: by 2002:aca:d50f:: with SMTP id m15mr10449088oig.54.1588945127549; Fri, 08 May 2020 06:38:47 -0700 (PDT) MIME-Version: 1.0 References: <20200507080528.547-1-geert+renesas@glider.be> In-Reply-To: From: Geert Uytterhoeven Date: Fri, 8 May 2020 15:38:36 +0200 Message-ID: Subject: Re: [PATCH/RFC] ARM: dts: rza2mevb: Upstream Linux requires SDRAM To: Nicolas Pitre X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200508_063849_560400_93D92936 X-CRM114-Status: GOOD ( 13.06 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Magnus Damm , Russell King , Linux-Renesas , Chris Brandt , Linux ARM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org "" Hi Nicolas, On Thu, May 7, 2020 at 7:07 PM Nicolas Pitre wrote: > On Thu, 7 May 2020, Geert Uytterhoeven wrote: > > On Thu, May 7, 2020 at 4:58 PM Nicolas Pitre wrote: > > > On Thu, 7 May 2020, Geert Uytterhoeven wrote: > > > > As upstream Linux does not support XIP, > > > > > > What? > > > > Not for an ARM v7 platform: > > > > config XIP_KERNEL > > bool "Kernel Execute-In-Place from ROM" > > depends on !ARM_LPAE && !ARCH_MULTIPLATFORM > > Of course this is an artificial limitation. > > You can have XIP on ARMv7 if you want. It requires some kconfig > tweaks though. I am happy to hear that! Do you have any guidance how to implement that? So far our tries have failed. "[PATCH 0/2] ARM: ARMv7 (with MMU) XIP without ARCH_MULTIPLATFORM" http://lore.kernel.org/r/20170209033044.19513-1-chris.brandt@renesas.com "[PATCH] ARM: Allow MULTIPLATFOR to select XIP https://lore.kernel.org/linux-arm-kernel/1455816310-11308-1-git-send-email-chris.brandt@renesas.com/ "[PATCH 0/2] ARM: xip: Get XIP for ARMv7 working again http://lore.kernel.org/r/1437057434-1616-1-git-send-email-chris.brandt@renesas.com "XIP_KERNEL and !ARCH_MULTIPLATFORM http://lore.kernel.org/r/HK2PR06MB0561CC16649A9C1F341CC6648A030@HK2PR06MB0561.apcprd06.prod.outlook.com ... Thanks, and have a nice weekend Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel