[U-Boot] Compiling for ARMv7-a

[Premi, Sanjeev]

> -----Original Message-----
> From: Wolfgang Denk [mailto:wd at denx.de] 
> Sent: Monday, April 06, 2009 1:29 PM
> To: Premi, Sanjeev
> Cc: Jean-Christophe PLAGNIOL-VILLARD; u-boot at lists.denx.de
> Subject: Re: [U-Boot] Compiling for ARMv7-a
> 
> Dear "Premi, Sanjeev",
> 
> In message 
> <B85A65D85D7EB246BE421B3FB0FBB59301CC6FBE61 at dbde02.ent.ti.com>
>  you wrote:
> >
> > > maybe you could explain us why you need it?
> > 
> > [sp] Only as an exercise to see if compiling for ARM v7 provides any
> >      better performance - speed and/or power-consumption.
> 
> ...both of which are most probably irrelevant in a boot loader,
> thatunder normal operating conditions has a total execution time of
> just a few hundred milliseconds per power-cycle.

[sp] No, it was not for measuring u-boot but for a small application
     that I wanted to compare for power consumption. It is probably
     easier to play with caches, MMU, etc. in the u-boot than in
     Linux kernel.

     Application is merely a calculate-wait-calculate kind of loop.

~sanjeev

> 
> Best regards,
> 
> Wolfgang Denk
> 
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>