From patchwork Tue Jan 28 06:41:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishon Vijay Abraham I X-Patchwork-Id: 11353683 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5F2A31395 for ; Tue, 28 Jan 2020 06:38:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3CB9524688 for ; Tue, 28 Jan 2020 06:38:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="Z9pA7Nvj" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725797AbgA1Giq (ORCPT ); Tue, 28 Jan 2020 01:38:46 -0500 Received: from fllv0015.ext.ti.com ([198.47.19.141]:57384 "EHLO fllv0015.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725810AbgA1Giq (ORCPT ); Tue, 28 Jan 2020 01:38:46 -0500 Received: from lelv0266.itg.ti.com ([10.180.67.225]) by fllv0015.ext.ti.com (8.15.2/8.15.2) with ESMTP id 00S6cdHT003447; Tue, 28 Jan 2020 00:38:39 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1580193519; bh=gEVthQKS3V2D77VkPWEZmXBXJIepylEjJYx7pMr/TPI=; h=From:To:CC:Subject:Date; b=Z9pA7Nvj9y5tJr9lQNSKqJL02UP9OjxwfnteMzSLI10UhaajJM5flGYU5RBrDzx5X W3WLuDfIK6hhfFrzRhknk2tuK8bkudrnN7kUS/ymzMSTxM9zLHgjNbU5xAbU5+u5qv y1uX5S7ixhK/rraxXsglarI4txjhL73oXKgj1ICI= Received: from DLEE109.ent.ti.com (dlee109.ent.ti.com [157.170.170.41]) by lelv0266.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 00S6cdgc019190 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 28 Jan 2020 00:38:39 -0600 Received: from DLEE102.ent.ti.com (157.170.170.32) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Tue, 28 Jan 2020 00:38:39 -0600 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE102.ent.ti.com (157.170.170.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Tue, 28 Jan 2020 00:38:38 -0600 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 00S6cZch067750; Tue, 28 Jan 2020 00:38:36 -0600 From: Kishon Vijay Abraham I To: =?utf-8?q?Beno=C3=AEt_Cousson?= , Tony Lindgren , Rob Herring , Mark Rutland CC: , , Subject: [PATCH] ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes Date: Tue, 28 Jan 2020 12:11:47 +0530 Message-ID: <20200128064147.18276-1-kishon@ti.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org '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 --- 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 73e5011f531a..c5af7530be7c 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -184,6 +184,7 @@ 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>; @@ -238,6 +239,7 @@ 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>;