[PATCH 0/3] arm/imx: serial number / UID support
plagnioj at jcrosoft.com
Wed Aug 4 06:25:45 EDT 2010
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
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