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 95B17C43603 for ; Wed, 4 Dec 2019 18:12:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 600D420865 for ; Wed, 4 Dec 2019 18:12:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575483129; bh=ZhJ+AoQEj/5MiznVVd92YNDSv6J7kOWoIuf5m+J3hN0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=CjS9J+sYoOkBPPwqraEBHwXipcwK+VmVssUTfVD8ucI31l2v6CR497UE2etTJyw2D lr5bsxfyzhTGCvWFT20SYBHo9h0rQQf3M3oQ3lGbNY0G3Q4w3Tt0rq5NlWkzN9635C cx7taRSYRhZOiejUW6EehAJ1EGfW5DWHRD40A/+k= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731561AbfLDSMI (ORCPT ); Wed, 4 Dec 2019 13:12:08 -0500 Received: from mail.kernel.org ([198.145.29.99]:40616 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731551AbfLDSMG (ORCPT ); Wed, 4 Dec 2019 13:12:06 -0500 Received: from localhost (unknown [217.68.49.72]) (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 3ACEA214AF; Wed, 4 Dec 2019 18:12:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1575483125; bh=ZhJ+AoQEj/5MiznVVd92YNDSv6J7kOWoIuf5m+J3hN0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=o3odKegJ0pC0JKz2z77k+gWgwnPppQ0PUOSeo1coFV9r40ybn1Qu9B5/hTbnwTUvN OueBuisazF8Pl0inwSbJRjWcJgvJ7DqxCGks6v1lNSuu7sooKjTCcOcVbLPRgPXiiQ S62cgI3Ju4w8BVGOkFM73H2bYaOdfzZBS1mYQbd4= 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 4.9 062/125] powerpc/44x/bamboo: Fix PCI range Date: Wed, 4 Dec 2019 18:56:07 +0100 Message-Id: <20191204175322.742339862@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191204175308.377746305@linuxfoundation.org> References: <20191204175308.377746305@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 aa68911f6560a..084b82ba74933 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