From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e23smtp07.au.ibm.com (e23smtp07.au.ibm.com [202.81.31.140]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e23smtp07.au.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 0AFC8B6F11 for ; Wed, 6 Oct 2010 12:28:29 +1100 (EST) Received: from d23relay03.au.ibm.com (d23relay03.au.ibm.com [202.81.31.245]) by e23smtp07.au.ibm.com (8.14.4/8.13.1) with ESMTP id o961STb3005803 for ; Wed, 6 Oct 2010 12:28:29 +1100 Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay03.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id o961STgP2985998 for ; Wed, 6 Oct 2010 12:28:29 +1100 Received: from d23av04.au.ibm.com (loopback [127.0.0.1]) by d23av04.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id o961SS2K005319 for ; Wed, 6 Oct 2010 12:28:28 +1100 Content-Type: text/plain; charset=UTF-8 Subject: Re: [PATCH 05/18] powerpc: Wire up 44x little endian boot for remaining 44x targets From: Ian Munsie To: Josh Boyer In-reply-to: References: <1285916771-18033-1-git-send-email-imunsie@au1.ibm.com> <1285916771-18033-6-git-send-email-imunsie@au1.ibm.com> Date: Wed, 06 Oct 2010 12:28:29 +1100 Message-Id: <1286327715-sup-584@au1.ibm.com> Cc: paulus , linuxppc-dev , linux-kernel List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Excerpts from Josh Boyer's message of Fri Oct 01 21:27:37 +1000 2010: > > From: Ian Munsie > > > > I haven't tested booting a little endian kernel on any of these targets, > > but they all claim to be 44x so my little endian trampoline should work > > on all of them, so wire it up on: > > > > bamboo > > katmai > > kilauea > > rainer > > sam440ep > > sequoia > > warp > > yosemite > > ebony > > I see no reason to do this at all. If you haven't tested them and > there is no demand, there's no reason to wire them up. Some might > actively want to disallow LE mode anyway, like the Warp or Sam440EP. I wasn't aware that the Warp and Sam440EP disallowed LE mode - I'll definitely unwire them and move the ARCH_SUPPORTS_LITTLE_ENDIAN to just the sub-arch's that support it. As for the other boards, I would like to wire them up if they are able to support LE mode - If anyone has one handy I would love to hear if they are able to begin booting a LE kernel with these patches, or when & how they fail. Cheers, -Ian