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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 6511DC432C0 for ; Tue, 3 Dec 2019 22:52:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2602220866 for ; Tue, 3 Dec 2019 22:52:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575413559; bh=izK4Rc8kYWh9KGFX6RBX3GX86iujtmb7+i2OeQju9NI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=HnF5cYPBRMaWKRpnYQwdc26waFJA2ikfR8HLhryja93wfW2FRPDwkuW79uLWV5oHc QNgK0YNaqlCvs737t32LDSwWoQ167phSejyT0WZaJlE/2vIbL/mBO3tez5mOKXRb2Z afw+Sp0FnqwkHuUbPHO7qq7WgwuhxrEGjtmzinjA= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729462AbfLCWwh (ORCPT ); Tue, 3 Dec 2019 17:52:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:45260 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729885AbfLCWwa (ORCPT ); Tue, 3 Dec 2019 17:52:30 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 60BD220866; Tue, 3 Dec 2019 22:52:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575413549; bh=izK4Rc8kYWh9KGFX6RBX3GX86iujtmb7+i2OeQju9NI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=x8i7XcC4Aj8MI/4+p0VJLo4iZrPAdnYRBrFG1te7L6zYDSZ/ZwmGjWt1UutSN51ca 558B4lqq0cv8At8TGixP9/Qmg2b+gt8oD6WzlPefpRsz0+sQSde+dsXp4Ofy+vBCfD qm0Qx1kKPJ2xxM1sshuGkgodfdahNfft7EgyADAA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Benjamin Herrenschmidt , Michael Ellerman , Sasha Levin Subject: [PATCH 4.19 168/321] powerpc/44x/bamboo: Fix PCI range Date: Tue, 3 Dec 2019 23:33:54 +0100 Message-Id: <20191203223435.876001811@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191203223427.103571230@linuxfoundation.org> References: <20191203223427.103571230@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Benjamin Herrenschmidt [ Upstream commit 3cfb9ebe906b51f2942b1e251009bb251efd2ba6 ] The bamboo dts has a bug: it uses a non-naturally aligned range for PCI memory space. This isnt' supported by the code, thus causing PCI to break on this system. This is due to the fact that while the chip memory map has 1G reserved for PCI memory, it's only 512M aligned. The code doesn't know how to split that into 2 different PMMs and fails, so limit the region to 512M. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin --- arch/powerpc/boot/dts/bamboo.dts | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/boot/dts/bamboo.dts b/arch/powerpc/boot/dts/bamboo.dts index 538e42b1120d8..b5861fa3836c1 100644 --- a/arch/powerpc/boot/dts/bamboo.dts +++ b/arch/powerpc/boot/dts/bamboo.dts @@ -268,8 +268,10 @@ /* Outbound ranges, one memory and one IO, * later cannot be changed. Chip supports a second * IO range but we don't use it for now + * The chip also supports a larger memory range but + * it's not naturally aligned, so our code will break */ - ranges = <0x02000000 0x00000000 0xa0000000 0x00000000 0xa0000000 0x00000000 0x40000000 + ranges = <0x02000000 0x00000000 0xa0000000 0x00000000 0xa0000000 0x00000000 0x20000000 0x02000000 0x00000000 0x00000000 0x00000000 0xe0000000 0x00000000 0x00100000 0x01000000 0x00000000 0x00000000 0x00000000 0xe8000000 0x00000000 0x00010000>; -- 2.20.1