From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751778Ab0JFB2c (ORCPT ); Tue, 5 Oct 2010 21:28:32 -0400 Received: from e23smtp05.au.ibm.com ([202.81.31.147]:45815 "EHLO e23smtp05.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751044Ab0JFB2b (ORCPT ); Tue, 5 Oct 2010 21:28:31 -0400 Content-Type: text/plain; charset=UTF-8 Cc: linuxppc-dev , linux-kernel , paulus , Benjamin Herrenschmidt 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> User-Agent: Sup/0.11 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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