From patchwork Wed Apr 1 16:18:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 228436 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=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 5E004C2D0F2 for ; Wed, 1 Apr 2020 16:37:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 08DF920658 for ; Wed, 1 Apr 2020 16:37:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585759061; bh=tlBCLzB8KqqSYZkd4B/QOZWltHSyIudbX/rrs3U1giY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=BTwf7xmwBbvkCWKRC/hQKukT6LvOShhX2QdzKpJP9kTmUy6fsaWdUUoNDZ99Tv79h NhYxB9Ncq/tcaX/6mSqQx7ihIbhWNh/MQpg8pEDxMa4lwujKXgpb0gqqT1pukR06Wp NYOD9mMpsZ8GvUHhhqyYumHG8++LFyWTOwRDXs8k= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388715AbgDAQhi (ORCPT ); Wed, 1 Apr 2020 12:37:38 -0400 Received: from mail.kernel.org ([198.145.29.99]:36604 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388814AbgDAQh0 (ORCPT ); Wed, 1 Apr 2020 12:37:26 -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 B128720772; Wed, 1 Apr 2020 16:37:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1585759046; bh=tlBCLzB8KqqSYZkd4B/QOZWltHSyIudbX/rrs3U1giY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=W/pY+1frTSSsIoPbZd+mM47PJdidAJ1T0jfgxMnZ+dVALHQYO60hBcE+iFLNn/zVe d94uFtVfNSGSEk8Ne+QVXuinuVjql20mWA16W1bMEGYHx9zt2MLXm+jgOQamXjdp8w zYZUvchho1qfHSzGo+9r2BLdWli5X7TZuxoHJccw= 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 4.9 059/102] ARM: dts: omap5: Add bus_dma_limit for L3 bus Date: Wed, 1 Apr 2020 18:18:02 +0200 Message-Id: <20200401161543.236331056@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: 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>,