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From: Mark Jackson <mpfj-list@mimc.co.uk>
To: u-boot@lists.denx.de
Subject: [U-Boot] AM335x PLL configuration
Date: Sat, 23 Feb 2013 11:45:45 +0000	[thread overview]
Message-ID: <5128ABE9.9020001@mimc.co.uk> (raw)

All the current TI AM335x boards currently appear to start with an MPU clock of 550MHx and a core clock of 1GHz,
based on #defines in include/asm/arch-am33xx/clocks_am33xx.h

I assume most people then pass control over to (eg) cpufreq once Linux boots.

However I would like to just boot up at the max clock speed (i.e. 720MHz).

Is there any merit in reworking this to allow the clock speeds to be specified in the config heaeder file ?

Or would it be better to allow the board init code to adjust the clock settings "on-the-fly" ?

I could just add some extra code to my own board.c file, but that doesn't seem like a very elegant solution !!

Maybe someone else already has a solution for this ?

Cheers
Mark J.

             reply	other threads:[~2013-02-23 11:45 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-23 11:45 Mark Jackson [this message]
2013-02-28 20:20 ` [U-Boot] AM335x PLL configuration Tom Rini

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