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Date:	Thu, 22 May 2014 11:40:06 -0700
From:	Tony Lindgren <>
To:	Arnd Bergmann <>
	Catalin Marinas <>,
	Paul Bolle <>,
	Russell King - ARM Linux <>,
	"" <>
Subject: Re: [PATCH] ARM: remove ARM710 specific assembler code

* Arnd Bergmann <> [140520 13:10]:
> On Tuesday 20 May 2014 09:05:13 Tony Lindgren wrote:
> > * Arnd Bergmann <> [140519 04:27]:
> > > On Saturday 17 May 2014 10:56:02 Catalin Marinas wrote:
> > > 
> > > For the case of ARM710T, I think the last remaining user that can be
> > > configured is mach-integrator, but I don't know if anybody even has that
> > > CPU tile, or wants to keep using it. If Russell and Linus as the only
> > > people that have cared about Integrator in the past years want to
> > > cut down the number of supported CPUs, that would be a different matter:
> > > quite a number of CPUs are not supported in any other platform.
> > > Note that the integrator target in qemu does not support any ARM7, only
> > > StrongARM, ARM9 or later. I also double-checked about mach-clps711x,
> > > but I'm pretty sure those SoCs are all either ARM710a (no longer supported)
> > > or ARM720T (quite active).
> > 
> > Hmm I don't think mach-integrator is using ARM710T?
> I don't know, we don't have a separate Kconfig option, so ARM710T and ARM720T
> use the same CONFIG_CPU_ARM720T symbol that can be enabled for integrator.
> Without any further information, I assumed that both might potentially be used.
> > The ARM710T was done by NEC and was used by the Psion MX hardware.
> > It's very close to ARM720T as far as I remember so might as well keep
> > the CPU support for it as that's just a few lines of code in the
> > mainline kernel.
> > 
> > I don't think we have any mach directories using ARM710T, but I
> > would not be surprised if somebody comes along with device tree
> > based booting patches for Psion MX at some point.
> Of course, if someone does this, the CPU support would be the least
> of their work ;-)

Right :)
> Just out of curiosity: was that NEC 710T a SoC that replaced the
> CL/PS7110, or a standalone CPU that Psion combined with a custom

I think 710T was a pin compatible clone of CL/PS7110 by NEC. The
device registers were different both from CL/PS7110 and 720T for
most part.


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