From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Thu, 8 Oct 2009 02:29:25 +0100 (BST) From: Chris Newport To: David Miller Subject: Re: [RFC PATCH 00/12] Merge common OpenFirmware device tree code In-Reply-To: <20091007.140938.255120957.davem@davemloft.net> Message-ID: References: <20091007135243.GC21646@anhedonia> <4ACCEC67.9070106@firmworks.com> <20091007.140938.255120957.davem@davemloft.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: sammy@sammy.net, sfr@canb.auug.org.au, microblaze-uclinux@itee.uq.edu.au, devicetree-discuss@lists.ozlabs.org, sparclinux@vger.kernel.org, julian.calaby@gmail.com, wmb@firmworks.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, 7 Oct 2009, David Miller wrote: >> Sun4c has also been broken for a long time and sun4d has never worked >> properly. Is it time to also prune these ?. >> That would leave only Sun4m in the 32bit kernel, which still works and >> has plenty of ongoing user interest. > > Chris don't over-exaggerate the state. > > The truth is that the whole sparc32 port is in a state of mild > disrepair, and many of the issues apply to all the port rather than > just one family of systems. I think someone suitably motivated > could get most of the bugs sorted out. > > There is no reason to drop support for SS1 machines, we already fully > build the software device tree and use all of the generic OF > infrastructure in the Linux kernel on those systems. It is not a road > block at all for the OF genericization work, if that's what you read > into wmb's email. Your call, as you say there is little to be gained other than tidyness. FWIW my opinions (and ICBW) are based on :- Sun4c machines have a max of 48 or 64Mb and very few are still working Sun4d has never had SMP support and this is apparantly problematic due to Cray interlectual property causing a lack of bus documentation. Running these heavy and power hungry lumps UP is a bit silly.