From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from devils.ext.ti.com ([198.47.26.153]:43266 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753147AbaBTMN0 (ORCPT ); Thu, 20 Feb 2014 07:13:26 -0500 Message-ID: <5305F154.8020507@ti.com> Date: Thu, 20 Feb 2014 17:43:08 +0530 From: Kishon Vijay Abraham I MIME-Version: 1.0 To: Mohit KUMAR DCG , "jg1.han@samsung.com" CC: Ajay KHANDELWAL , Bjorn Helgaas , spear-devel , "linux-pci@vger.kernel.org" Subject: Re: [PATCH 2/2] PCI:designware:Fix iATU programming for cfg1, io and mem viewport References: <1392873774-22249-1-git-send-email-mohit.kumar@st.com> <1392873774-22249-2-git-send-email-mohit.kumar@st.com> <5305E928.5070505@ti.com> <2CC2A0A4A178534D93D5159BF3BCB66189FD40D8B3@EAPEX1MAIL1.st.com> In-Reply-To: <2CC2A0A4A178534D93D5159BF3BCB66189FD40D8B3@EAPEX1MAIL1.st.com> Content-Type: text/plain; charset="UTF-8" Sender: linux-pci-owner@vger.kernel.org List-ID: Hi Mohit, On Thursday 20 February 2014 05:28 PM, Mohit KUMAR DCG wrote: > Hello Kishon, > >> -----Original Message----- >> From: Kishon Vijay Abraham I [mailto:kishon@ti.com] >> Sent: Thursday, February 20, 2014 5:08 PM >> To: Mohit KUMAR DCG; jg1.han@samsung.com >> Cc: Ajay KHANDELWAL; Bjorn Helgaas; spear-devel; linux- >> pci@vger.kernel.org >> Subject: Re: [PATCH 2/2] PCI:designware:Fix iATU programming for cfg1, io >> and mem viewport >> >> Hi, >> >> On Thursday 20 February 2014 10:52 AM, Mohit Kumar wrote: >>> This patch correct iATU programming for cfg1, io and mem viewport. >>> Enable ATU only after configuring it. >> >> Does this patch actually fixes device enumeration behind a PCIe-pci bridge or >> this is more of cleaning up the sequence? >> > - This patch corrects ATU programming sequence. I am not aware of any such issue with > current driver. Pls specify which bridge do you use in your setup and what is the problem? I tried with card [1], it had a PLX bridge chip. It couldn't read the configuration space of the device connected to the PCIe-PCI bridge. Thanks Kishon [1] -> http://ratetorate.in/products/Wiretech-PCIe%252dto%252dPCI-Bridge-Card. > > Regards > Mohit >