From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.windriver.com (mail.windriver.com [147.11.1.11]) by mx1.pokylinux.org (Postfix) with ESMTP id 475384C80FA8 for ; Wed, 10 Nov 2010 09:07:19 -0600 (CST) Received: from ALA-MAIL03.corp.ad.wrs.com (ala-mail03 [147.11.57.144]) by mail.windriver.com (8.14.3/8.14.3) with ESMTP id oAAF7HR7025232; Wed, 10 Nov 2010 07:07:17 -0800 (PST) Received: from ala-mail06.corp.ad.wrs.com ([147.11.57.147]) by ALA-MAIL03.corp.ad.wrs.com with Microsoft SMTPSVC(6.0.3790.1830); Wed, 10 Nov 2010 07:07:17 -0800 Received: from [128.224.146.67] ([128.224.146.67]) by ala-mail06.corp.ad.wrs.com with Microsoft SMTPSVC(6.0.3790.1830); Wed, 10 Nov 2010 07:07:17 -0800 Message-ID: <4CDAB524.3060104@windriver.com> Date: Wed, 10 Nov 2010 10:07:16 -0500 From: Bruce Ashfield User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9pre) Gecko/20100217 Shredder/3.0.3pre ThunderBrowse/3.2.8.1 MIME-Version: 1.0 To: Kumar Gala References: <414DA7D8-2E3E-4DEE-9C36-24EF976D7A99@kernel.crashing.org> <4CDAA03C.8090004@windriver.com> <4CDAA4F0.1060802@windriver.com> <4CDAAACD.1070206@windriver.com> <64CB5A01-C87F-43FA-BD52-43694E5E5908@kernel.crashing.org> In-Reply-To: <64CB5A01-C87F-43FA-BD52-43694E5E5908@kernel.crashing.org> X-OriginalArrivalTime: 10 Nov 2010 15:07:17.0765 (UTC) FILETIME=[F7297B50:01CB80E8] Cc: yocto@yoctoproject.org Subject: Re: TARGET_FPU for mpc8315e-rdb listed as SPE?? X-BeenThere: yocto@yoctoproject.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Discussion of all things Yocto List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Nov 2010 15:07:19 -0000 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 10-11-10 10:03 AM, Kumar Gala wrote: > > On Nov 10, 2010, at 8:23 AM, Bruce Ashfield wrote: > >> On 10-11-10 09:11 AM, Kumar Gala wrote: >>> >>> On Nov 10, 2010, at 7:58 AM, Bruce Ashfield wrote: >>> >>>> On 10-11-10 08:38 AM, Bruce Ashfield wrote: >>>>> On 10-11-10 01:46 AM, Kumar Gala wrote: >>>>>> Why does the meta/conf/machine/mpc8315e-rdb.conf list TARGET_FPU as >>>>>> SPE. This isn't correct for an MPC8313 SoC. >>>>> >>>>> It isn't used at the moment, so we can safely >>>>> ignore this. >>>>> >>>>> It was a hold over from when I initially created >>>>> the BSP, and I've since changed it locally, but >>>>> haven't sent the updated BSP yet. >>>> >>>> To clarify on this point, the kernel configuration >>>> is NOT using SPE for this, and I was attempting to >>>> use the FPU setting to trigger some different gcc >>>> flags during development the base of that test was >>>> an e500 board, so the SPE setting leaked in, but is >>>> unused. >>>> >>>> At the moment, it is actually using soft-float, and >>>> I had planned to submit a change to clarify that. >>>> >>>> If there's another option, let me know and I'll >>>> rebase my patches and change it again. >>> >>> We should NOT be using soft-float for mpc8315e (it has HW floating point on this chip). >> >> Indeed. I fell back to a safe multilib. I'm willing >> to try again and see if the gcc bootstrap phases will >> build. >> >> The kernel was fine, and is fine, it was userspace >> that caused problems for me .. and that's definitely not >> an area where my expertise lies :) >> >> I needed something that worked, and had to excplicitly >> chose to ignore the FPU temporarily, but revisiting that >> now seems like a good idea. >> >>> >>> Any plans to get an e500 based system going before the rev1.0 release? >> >> We've got tonnes of experience and BSPs to draw from >> here. The selection of some of these BSPs was (largely) >> based on cost and availability. If we can get our >> hands on a suitable e500 replacement .. the switch is >> trivial. > > If we can get a toolchain and basic build I'm happy to help on the HW side and getting kernel, etc worked out. Agreed. For me, this is the slightly harder part. I'll start a few builds and see if the errors are still here. > > I'd like to get a semi-generic setup going for an e500v2 based system. Should be doable. I've already got a generic set of configs/ patches/features in place for all powerpc/FSL boards, (largely due to the lineage of the base kernel we use). But getting some assistance with further tuning of the options would be appreciated, since I can use that to springboard the creation of new BSPs. Cheers, Bruce > > - k