From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: Baruch Siach <baruch@tkos.co.il>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 0/3] arm/imx: serial number / UID support
Date: Wed, 4 Aug 2010 12:25:45 +0200 [thread overview]
Message-ID: <20100804102545.GB12545@game.jcrosoft.org> (raw)
In-Reply-To: <20100804064641.GB17208@jasper.tkos.co.il>
On 09:46 Wed 04 Aug , Baruch Siach wrote:
> Hi Jean-Christophe,
>
> On Mon, Aug 02, 2010 at 02:02:13PM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > serial number is more for board ref than CPU ref
> > as you can easly read it from the register.
> >
> > So why pass it via the ATAG?
>
> The point of the serial number ATAG is to uniquely identify the system.
> Getting this unique ID from the CPU is as good as any other IMO. I'm not aware
> of any other UID source on the mx25 3DS system. Besides, having the serial
> number nicely listed in /proc/cpuinfo is far easier than reading registers.
>
> Anyway, patches 1 and 2 in this series are useful on their own, I think. I
> intend to use this functionality for our own board. I've added the mx25 3ds
> two lines patch to justify the bloat :).
I agree about the other patch I just do not think we need to pass the CPUID to
the kernel as he can easly get it by himself IMHO
Best Regards,
J.
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prev parent reply other threads:[~2010-08-04 10:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-02 11:58 Baruch Siach
2010-08-02 11:58 ` [PATCH 1/3] arm: add support for the serial ATAG Baruch Siach
2010-08-02 12:13 ` Uwe Kleine-König
2010-08-02 11:58 ` [PATCH 2/3] imx25: add support for UID read from eFuse Baruch Siach
2010-08-02 11:58 ` [PATCH 3/3] mx25 3ds: set CPU UID Baruch Siach
2010-08-02 12:02 ` [PATCH 0/3] arm/imx: serial number / UID support Jean-Christophe PLAGNIOL-VILLARD
2010-08-04 6:46 ` Baruch Siach
2010-08-04 10:25 ` Jean-Christophe PLAGNIOL-VILLARD [this message]
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