From patchwork Wed Apr 1 16:18:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 228365 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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 315FAC2BA14 for ; Wed, 1 Apr 2020 16:49:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C51402063A for ; Wed, 1 Apr 2020 16:49:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585759746; bh=tlBCLzB8KqqSYZkd4B/QOZWltHSyIudbX/rrs3U1giY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=xS+PEXK+n6e9kzZ+1AYfJmlnpSFcJg5N66UBvhunpxNmKxXo7+VPL0/3KUm6V+WSl b6IM/rz0hXJHdEcBk33Ny7ZNKfhOtsBStEK3mq95VO2jWXgWyFDpin+B9msIK8smzC ISdF9blHzvBMflEWIe50pEu6/oqpdrPeAznfI2Dg= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387482AbgDAQoi (ORCPT ); Wed, 1 Apr 2020 12:44:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:45666 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388617AbgDAQoh (ORCPT ); Wed, 1 Apr 2020 12:44:37 -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 03CB22063A; Wed, 1 Apr 2020 16:44:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585759476; bh=tlBCLzB8KqqSYZkd4B/QOZWltHSyIudbX/rrs3U1giY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mDwfyZOCaOVOVlNDPcQqk0D9JY4c8Nd1LcMcJiCEQ0qesunrySGBxdC3M0zp1g9+8 vIdENOBqZh7CHepejOqOHLo9c9DnOHqrP0SRESwpoDHTY+Ea29FdLBvHfGRFL1tuM2 xyY22BDSNUYhL8d+Chvl28joqzewUGhWlW9kR0Go= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, stable@kernel.org, Roger Quadros , Tony Lindgren Subject: [PATCH 4.14 092/148] ARM: dts: omap5: Add bus_dma_limit for L3 bus Date: Wed, 1 Apr 2020 18:18:04 +0200 Message-Id: <20200401161601.814782206@linuxfoundation.org> X-Mailer: git-send-email 2.26.0 In-Reply-To: <20200401161552.245876366@linuxfoundation.org> References: <20200401161552.245876366@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: Roger Quadros commit dfa7ea303f56a3a8b1ed3b91ef35af2da67ca4ee upstream. The L3 interconnect's memory map is from 0x0 to 0xffffffff. Out of this, System memory (SDRAM) can be accessed from 0x80000000 to 0xffffffff (2GB) OMAP5 does support 4GB of SDRAM but upper 2GB can only be accessed by the MPU subsystem. Add the dma-ranges property to reflect the physical address limit of the L3 bus. Cc: stable@kernel.org Signed-off-by: Roger Quadros Signed-off-by: Tony Lindgren Signed-off-by: Greg Kroah-Hartman --- arch/arm/boot/dts/omap5.dtsi | 1 + 1 file changed, 1 insertion(+) --- a/arch/arm/boot/dts/omap5.dtsi +++ b/arch/arm/boot/dts/omap5.dtsi @@ -131,6 +131,7 @@ #address-cells = <1>; #size-cells = <1>; ranges = <0 0 0 0xc0000000>; + dma-ranges = <0x80000000 0x0 0x80000000 0x80000000>; ti,hwmods = "l3_main_1", "l3_main_2", "l3_main_3"; reg = <0 0x44000000 0 0x2000>, <0 0x44800000 0 0x3000>,