From patchwork Wed Apr 1 16:17:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 228445 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=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 66B73C43331 for ; Wed, 1 Apr 2020 16:35:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CDE6D212CC for ; Wed, 1 Apr 2020 16:35:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585758957; bh=Dxdis/KJKogw06PdKI7YE6I+j6JbrgSMNU1dghE2T48=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=oPbQPhBYNiCaHoARehfraq3TItfXNFr4W33Q5RWaOjQ45VaeoyyFl+WT5xr/YlqhQ gPBbypIldmQjxmAtQqmiOLKp8fdzMQmOO5Yvh/tq5msenhgzLwevF6baYy7l/9l3mA yghu2UjmxThl7enmovaoaSd3wDQGw9yAJM/lTCgE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388784AbgDAQf4 (ORCPT ); Wed, 1 Apr 2020 12:35:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:34770 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388795AbgDAQf4 (ORCPT ); Wed, 1 Apr 2020 12:35:56 -0400 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 4A55220857; Wed, 1 Apr 2020 16:35:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585758955; bh=Dxdis/KJKogw06PdKI7YE6I+j6JbrgSMNU1dghE2T48=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MTJbRmISy47bfK4xp6NBU4z6Tr0KkFwJ82zrrWv6Td0Rjrdf+0rlHgW8iXvkxg6dm RFAkVUrhQwOcs1Ts8SCaRKP1QlqaixtuMOgI3/3cv5vJMB1qHZLIwDjQmLGzxQ3XDa DOAn/eSH53tsEeYXjWyGiM06wq4YXvQC9jXqaY5w= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kishon Vijay Abraham I , Tony Lindgren , Sasha Levin Subject: [PATCH 4.9 003/102] ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes Date: Wed, 1 Apr 2020 18:17:06 +0200 Message-Id: <20200401161532.006689044@linuxfoundation.org> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200401161530.451355388@linuxfoundation.org> References: <20200401161530.451355388@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Kishon Vijay Abraham I [ Upstream commit 27f13774654ea6bd0b6fc9b97cce8d19e5735661 ] 'dma-ranges' in a PCI bridge node does correctly set dma masks for PCI devices not described in the DT. Certain DRA7 platforms (e.g., DRA76) has RAM above 32-bit boundary (accessible with LPAE config) though the PCIe bridge will be able to access only 32-bits. Add 'dma-ranges' property in PCIe RC DT nodes to indicate the host bridge can access only 32 bits. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Tony Lindgren Signed-off-by: Sasha Levin --- arch/arm/boot/dts/dra7.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index a1a928064b53d..f94064c687789 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -282,6 +282,7 @@ device_type = "pci"; ranges = <0x81000000 0 0 0x03000 0 0x00010000 0x82000000 0 0x20013000 0x13000 0 0xffed000>; + dma-ranges = <0x02000000 0x0 0x00000000 0x00000000 0x1 0x00000000>; bus-range = <0x00 0xff>; #interrupt-cells = <1>; num-lanes = <1>; @@ -319,6 +320,7 @@ device_type = "pci"; ranges = <0x81000000 0 0 0x03000 0 0x00010000 0x82000000 0 0x30013000 0x13000 0 0xffed000>; + dma-ranges = <0x02000000 0x0 0x00000000 0x00000000 0x1 0x00000000>; bus-range = <0x00 0xff>; #interrupt-cells = <1>; num-lanes = <1>;