From patchwork Mon Mar 27 09:49:45 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Pieralisi X-Patchwork-Id: 9646111 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 08564602C8 for ; Mon, 27 Mar 2017 09:56:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D3DC92833B for ; Mon, 27 Mar 2017 09:56:47 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C8C0E2835B; Mon, 27 Mar 2017 09:56:47 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 4031E2833B for ; Mon, 27 Mar 2017 09:56:47 +0000 (UTC) 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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=wo5xxEQAyJdGn1f/QlGEvN1qmqG8rjthgc3SFjgdE4k=; b=auIyF8fje7RsfHctPIIiR39qN2 mf6UR7ADgbkibW24g57m+aAZ4tkOHlvgW4qogazVOXO/6jZ7V7UVoaPSFELr/0ztveJgwv99oAb8x ulFCMSiKdGgRA3355DzI7LkPV4h4+1NlcoPvG9nlv0LmiUQHo9cHoD52VJ62I480BtNK9txDy/C5k 4Sc1kGUs16VqcGoCm0R5MNpg3M8cn6BXzKViwxsipVrvomsabDQoWiqYipUjHwiA9bJDry1MOCiGs pYEgrohgbST19cWzKgKKg2nngd0SP7TfyeXMcSghi9aHJ7FUuh67ln9EiwLzLEj9+ikuikKewfglb YW0Qd7Vw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1csROH-0002eM-OA; Mon, 27 Mar 2017 09:56:45 +0000 Received: from foss.arm.com ([217.140.101.70]) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1csRIs-0005x5-KD for linux-arm-kernel@lists.infradead.org; Mon, 27 Mar 2017 09:51:13 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 65A5180D; Mon, 27 Mar 2017 02:50:50 -0700 (PDT) Received: from red-moon.cambridge.arm.com (red-moon.cambridge.arm.com [10.1.206.55]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 526723F23B; Mon, 27 Mar 2017 02:50:49 -0700 (PDT) From: Lorenzo Pieralisi To: linux-pci@vger.kernel.org Subject: [PATCH v2 17/22] PCI: armada8k: update PCI config space remap function Date: Mon, 27 Mar 2017 10:49:45 +0100 Message-Id: <20170327094954.7162-18-lorenzo.pieralisi@arm.com> X-Mailer: git-send-email 2.10.0 In-Reply-To: <20170327094954.7162-1-lorenzo.pieralisi@arm.com> References: <20170327094954.7162-1-lorenzo.pieralisi@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170327_025110_870463_2AB1265C X-CRM114-Status: UNSURE ( 8.59 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bjorn Helgaas , Thomas Petazzoni , Lorenzo Pieralisi , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP PCI configuration space should be mapped with a memory region type that generates on the CPU host bus non-posted write transations. Update the driver to use the devm_ioremap_nopost* interface to make sure the correct memory mappings for PCI configuration space are used. Signed-off-by: Lorenzo Pieralisi Cc: Bjorn Helgaas Cc: Thomas Petazzoni --- drivers/pci/dwc/pcie-armada8k.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/dwc/pcie-armada8k.c b/drivers/pci/dwc/pcie-armada8k.c index f110e3b..6bc7c7f 100644 --- a/drivers/pci/dwc/pcie-armada8k.c +++ b/drivers/pci/dwc/pcie-armada8k.c @@ -230,7 +230,7 @@ static int armada8k_pcie_probe(struct platform_device *pdev) /* Get the dw-pcie unit configuration/control registers base. */ base = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ctrl"); - pci->dbi_base = devm_ioremap_resource(dev, base); + pci->dbi_base = devm_ioremap_nopost_resource(dev, base); if (IS_ERR(pci->dbi_base)) { dev_err(dev, "couldn't remap regs base %p\n", base); ret = PTR_ERR(pci->dbi_base);