linux-kernel - Re: [PATCH 1/1] drivers/misc: Add Altera System ID driver

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Message-ID: <1362739279.2201.3.camel@leyfoon-vm>
Date:	Fri, 8 Mar 2013 18:41:19 +0800
From:	Ley Foon Tan <lftan@...era.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Rob Landley <rob@...dley.net>, <linux-kernel@...r.kernel.org>,
	<linux-doc@...r.kernel.org>
Subject: Re: [PATCH 1/1] drivers/misc: Add Altera System ID driver

On Tue, 2013-03-05 at 21:59 +0000, Arnd Bergmann wrote:
> On Tuesday 05 March 2013, Ley Foon Tan wrote:
> > The sysid give the unique system ID and system generation timestamp of
> > the system.
> > 
> > CASE 1:
> > SOCFPGA SoC + Sysid component in FPGA
> > 
> > CASE 2
> > Nios II soft core CPU + Sysid  (All in FPGA and no SoC is involved)
> > 
> > From example use cases above, Case 2 doesn't involve SoC component. 
> > To support both cases, do you think drivers/base/soc.c is still
> > suitable?
> 
> Yes, I think so. I would consider the second case still a SoC, because
> you have a single chip that contains the CPU and peripherals. From
> the OS point of view, it does not matter that they are in an FPGA.
> 
> 	Arnd

Thanks for your input. I will go with your suggestion.

LFTan


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