From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mlbe2k1.cs.myharris.net (mlbe2k1.cs.myharris.net [137.237.90.88]) by ozlabs.org (Postfix) with ESMTP id 80C3FDE2DB for ; Thu, 8 Jan 2009 01:45:39 +1100 (EST) Message-ID: <4964C00E.1090208@harris.com> Date: Wed, 07 Jan 2009 09:45:34 -0500 From: "Steven A. Falco" MIME-Version: 1.0 To: Benjamin Herrenschmidt Subject: Re: [QUESTION] 440EPx with PCI to PCIe bridge error References: <496268E7.5090907@harris.com> <1231190318.14860.17.camel@pasglop> <49627D33.8030605@harris.com> <1231223634.14860.18.camel@pasglop> <4963C1DE.6020007@harris.com> <4963CF68.3040808@harris.com> <1231279340.14860.31.camel@pasglop> <4963D989.6090909@harris.com> <1231283623.14860.32.camel@pasglop> In-Reply-To: <1231283623.14860.32.camel@pasglop> Content-Type: text/plain; charset=UTF-8 Cc: "linuxppc-dev@ozlabs.org" , Wolfgang Denk List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Benjamin Herrenschmidt wrote: > >> I'm not sure if this should be changed in the mainline. This card works >> out of the box when used with a generic x86 PC, but not when used with >> a sequoia. But, maybe it's just me climbing the PPC learning curve. > > Nah, I think 256M is ridiculously small :-) I think the .dts for that > board should be changed, there is plenty of physical address space > available on those chips since it's using a 36-bit bus. > > Cheers, > Ben. > Sheepish grin: I did more checking, and the current mainline actually has this set to 1 GB. The .dts I'm using dates back to 2.6.25. I had started modifying it for some custom peripherals we have hacked onto a Sequoia, and I missed the changes that were made between .25 and .28. If you think 1 GB is a suitable default, then no further changes are needed. If you think it should be bigger than 1 GB, then I could submit a patch. Steve