Re: device tree not the answer in the ARM world

2013-05-18 Thread Mark Morgan Lloyd
Mark Morgan Lloyd wrote: I wonder if the device tree is the answer here. If the box comes with a DT or one is available on the web then the installer could read it and know what to install. That and the armmp kernel should solve the problem. you'd think so, and it's a very good question, to

RE: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-09 Thread Yuhong Bao
> the economics of market forces don't work that way. > profit-maximising companies are pathologically and *LEGALLY* bound to > enact the articles of incorporation. so you'd need to show them that > it would hurt their profits to continue the way that they are going. I think legally bound is a myth

RE: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-09 Thread Yuhong Bao
> From: yuhongbao_...@hotmail.com > To: l...@lkcl.net; hancock...@gmail.com > CC: david.goodeno...@btconnect.com; debian-arm@lists.debian.org; > linux-ker...@vger.kernel.org; arm-netb...@lists.phcomp.co.uk > Subject: RE: device tree not th

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-08 Thread Rob Landley
On 05/08/2013 03:19:23 AM, Luke Kenneth Casson Leighton wrote: On Wed, May 8, 2013 at 4:44 AM, Rob Landley wrote: >> whereas the EOMA initiative is at the complete opposite end of the >> spectrum. and products based around the EOMA standards, although >> there is a cost overhead of e.g. aroun

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-08 Thread Eugen Leitl
On Wed, May 08, 2013 at 09:19:23AM +0100, Luke Kenneth Casson Leighton wrote: > On Wed, May 8, 2013 at 4:44 AM, Rob Landley wrote: > > >> whereas the EOMA initiative is at the complete opposite end of the > >> spectrum. and products based around the EOMA standards, although > >> there is a cost

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-08 Thread Luke Kenneth Casson Leighton
On Wed, May 8, 2013 at 4:44 AM, Rob Landley wrote: >> whereas the EOMA initiative is at the complete opposite end of the >> spectrum. and products based around the EOMA standards, although >> there is a cost overhead of e.g. around $6 in parts for EOMA-68, there >> is a whopping great saving of

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-07 Thread Rob Landley
On 05/06/2013 03:55:11 PM, Luke Kenneth Casson Leighton wrote: On Mon, May 6, 2013 at 9:01 PM, Rob Landley wrote: > You realize that nobody except Samsung and Apple is currently making money > in the smartphone space, right? ok, ok - substitute "tablet" or "laptop" or "media centre" for "sm

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-07 Thread Kim Enkovaara
On Mon, 6 May 2013, Lennart Sorensen wrote: I am getting the impression that we should ignore the cell phones given they seem to be thoroughly ignoring their customers and everyone else anyhow. If we then focus on the devices that perhaps do care to be around for a while and supported, we might

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-06 Thread Luke Kenneth Casson Leighton
On Mon, May 6, 2013 at 9:31 PM, Lennart Sorensen wrote: >> And neither is the same as the quality or sustainability of the >> resulting software. But if the product line will be be discontinued >> three months after its introduction, who cares about being able to >> maintain anything? > > Sounds

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-06 Thread Luke Kenneth Casson Leighton
On Mon, May 6, 2013 at 9:01 PM, Rob Landley wrote: > On 05/06/2013 07:08:44 AM, Luke Kenneth Casson Leighton wrote: >> >> > I suppose that ARM multi-platform will never cover all ARM CPUs, but >> > the more it covers, the easier and cheaper it will be to work with new >> > hardware and ARM. >> >>

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-06 Thread Lennart Sorensen
On Mon, May 06, 2013 at 03:01:58PM -0500, Rob Landley wrote: > And economies of scale are everything to hardware cost. Unit volume > amortizes the development (and often licensing) costs down, in the > long run who has the highest unit volume has the cheapest product. > Being able to reuse off the

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-06 Thread Rob Landley
On 05/06/2013 07:08:44 AM, Luke Kenneth Casson Leighton wrote: > I suppose that ARM multi-platform will never cover all ARM CPUs, but > the more it covers, the easier and cheaper it will be to work with new > hardware and ARM. no. no, no no and wrong. absolutely dead wrong. you're complet

Re: device tree not the answer in the ARM world

2013-05-06 Thread DrEagle
Le 06/05/2013 20:07, Mark Morgan Lloyd a écrit : > Strictly, it's Forth compiled into fcode; I'm not sure, but possibly also > used for drivers on PPC Mac disks etc. Whether or not one likes Forth as a > general-purpose language, it's definitely got its uses. PPC Mac disks drivers were pure asse

Re: device tree not the answer in the ARM world

2013-05-06 Thread Mark Morgan Lloyd
Lennart Sorensen wrote: On Mon, May 06, 2013 at 06:33:51PM +0100, Luke Kenneth Casson Leighton wrote: *click*. now some comments on #arm-netbooks make sense. such as "sparc has had device tree for 20 years". okay. i get it. Yes devicetree was invented as a way for embedded powerpc sys

Re: device tree not the answer in the ARM world

2013-05-06 Thread Lennart Sorensen
On Mon, May 06, 2013 at 06:33:51PM +0100, Luke Kenneth Casson Leighton wrote: > *click*. now some comments on #arm-netbooks make sense. such as > "sparc has had device tree for 20 years". okay. i get it. Yes devicetree was invented as a way for embedded powerpc systems to provide the same

Re: device tree not the answer in the ARM world

2013-05-06 Thread Luke Kenneth Casson Leighton
On Mon, May 6, 2013 at 6:24 PM, Mark Morgan Lloyd wrote: > My understanding- and I admit freely that it's based on cursory research and > could be entirely wrong- is that DeviceTree is a derivative or at least a > spin-off of a group of projects which include IEEE 1275 aka OpenFirmware. *click*

Re: device tree not the answer in the ARM world

2013-05-06 Thread Mark Morgan Lloyd
Luke Kenneth Casson Leighton wrote: mark, thank for this. i'm bringing lkml back in [my decision] but just this once as i believe the point's now been made. i'm also leaving it below [top-post style] as it's background, as well as standing on its own merit. i was under the impression that devi

Re: device tree not the answer in the ARM world

2013-05-06 Thread Luke Kenneth Casson Leighton
mark, thank for this. i'm bringing lkml back in [my decision] but just this once as i believe the point's now been made. i'm also leaving it below [top-post style] as it's background, as well as standing on its own merit. i was under the impression that device tree had been declared successful o

Re: device tree not the answer in the ARM world

2013-05-06 Thread Mark Morgan Lloyd
Luke Kenneth Casson Leighton wrote: And I have a question: as the Debian installer takes the arch armhf in charge, do you think a standard install' from a netboot image will work ? this has been on my list for a lng time. as with *all* debian installer images however you are hampered by the

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-06 Thread Luke Kenneth Casson Leighton
james, hi - top-posting or not you make some valid points, and i don't believe you're subscribed to arm-netbooks so i'm going to take a liberty and reply briefly inline but keep most of what you've written intact, apologies to debian-arm and lkml. On Mon, May 6, 2013 at 10:04 AM, James Courtier-Du

Re: [Arm-netbook] device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-06 Thread luke.leighton
On Mon, May 6, 2013 at 9:22 AM, Oliver Schinagl wrote: > Note, I'm not qualified nor important or anything really to be part of > this discussion or mud slinging this may turn into, but I do fine some > flaws in the reasoning here that If not pointed out, may get grossly > overlooked. allo olive

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-06 Thread Alexander Holler
Am 06.05.2013 08:53, schrieb Luke Kenneth Casson Leighton: but the question you have to ask is: why should the HW designers even care? they're creating an embedded specialist system, they picked the most cost-effective and most available solution to them - why _should_ they care? and the a

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-06 Thread James Courtier-Dutton
The real problem with any new system, is the hardware is designed and then it is a challenge for the software developer to get the software to boot on the new hardware. The nirvana here would be to take the original hardware circuit diagram, and process it to automatically create a config file. The

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-06 Thread Oliver Schinagl
Note, I'm not qualified nor important or anything really to be part of this discussion or mud slinging this may turn into, but I do fine some flaws in the reasoning here that If not pointed out, may get grossly overlooked. On 06-05-13 06:09, Robert Hancock wrote: On 05/05/2013 06:27 AM, Luke

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-05 Thread Luke Kenneth Casson Leighton
On Mon, May 6, 2013 at 5:09 AM, Robert Hancock wrote: >> and that's just within *one* of the fabless semiconductor companies, >> and you have to bear in mind that there are *several hundred* ARM >> licensees. when this topic was last raised, someone mentioned that >> ARM attempted to standardise

Re: device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-05 Thread Robert Hancock
On 05/05/2013 06:27 AM, Luke Kenneth Casson Leighton wrote: this message came up on debian-arm and i figured that it is worthwhile endeavouring to get across to people why device tree cannot and will not ever be the solution it was believed to be, in the ARM world. [just a quick note to david wh

device tree not the answer in the ARM world [was: Re: running Debian on a Cubieboard]

2013-05-05 Thread Luke Kenneth Casson Leighton
this message came up on debian-arm and i figured that it is worthwhile endeavouring to get across to people why device tree cannot and will not ever be the solution it was believed to be, in the ARM world. [just a quick note to david who asked this question on the debian-arm mailing list: any chan