From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755454AbbIAVUT (ORCPT ); Tue, 1 Sep 2015 17:20:19 -0400 Received: from aserp1040.oracle.com ([141.146.126.69]:23131 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751680AbbIAVUQ (ORCPT ); Tue, 1 Sep 2015 17:20:16 -0400 Message-ID: <55E61658.9010207@oracle.com> Date: Tue, 01 Sep 2015 14:19:20 -0700 From: "santosh.shilimkar@oracle.com" Organization: Oracle Corporation User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: WingMan Kwok , robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, linux@arm.linux.org.uk, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, ssantosh@kernel.org CC: m-karicheri2@ti.com Subject: Re: [PATCH] ARM: dts: keystone: use one to one address translations under netcp References: <1441139324-29296-1-git-send-email-w-kwok2@ti.com> In-Reply-To: <1441139324-29296-1-git-send-email-w-kwok2@ti.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit X-Source-IP: userv0022.oracle.com [156.151.31.74] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/1/15 1:28 PM, WingMan Kwok wrote: > Network subsystem NetCP in Keystone-2 devices includes some HW blocks > that are memory mapped to ranges outside that of the NetCP itself. > Thus address space of a child node of the NetCP node needs to be > mapped 1:1 onto the parent address space. Hence empty ranges > should be used under the NetCP node. > > Signed-off-by: WingMan Kwok > --- > arch/arm/boot/dts/k2e-netcp.dtsi | 8 +++----- > arch/arm/boot/dts/k2hk-netcp.dtsi | 14 ++++++-------- > arch/arm/boot/dts/k2l-netcp.dtsi | 8 +++----- > 3 files changed, 12 insertions(+), 18 deletions(-) > > diff --git a/arch/arm/boot/dts/k2e-netcp.dtsi b/arch/arm/boot/dts/k2e-netcp.dtsi > index b13b3c9..e103ed9 100644 > --- a/arch/arm/boot/dts/k2e-netcp.dtsi > +++ b/arch/arm/boot/dts/k2e-netcp.dtsi > @@ -111,9 +111,7 @@ netcp: netcp@24000000 { > compatible = "ti,netcp-1.0"; > #address-cells = <1>; > #size-cells = <1>; > - > - /* NetCP address range */ > - ranges = <0 0x24000000 0x1000000>; > + ranges; > What blocks are we talking here. We need to increase the range if the current range isn't covering entire NETCP address space. Removing range isn't a solution. Regards, Santosh