[U-Boot] [PATCH] Move ICS CLK chip frequenty calculation code into a common board library

Timur Tabi
2010-05-21T18:59:09Z

On Fri, May 21, 2010 at 4:18 AM, Kumar Gala <galak@kernel.crashing.org> wrote:

> + ? ? ? ?* Adding 1 to get a "nicely" rounded number, but this needs
> + ? ? ? ?* more tweaking to get a "properly" rounded number.
> + ? ? ? ?*/
> +
> + ? ? ? freq = 1 + (input_freq * 2 * (VDW + 8) / ((RDW + 2) * OD));

Is this rounding algorithm the reason why I get output like this:

Clock Configuration:
CPU0:799.992 MHz, CPU1:799.992 MHz,
CCB:399.996 MHz,
DDR:299.997 MHz (599.994 MT/s data rate) (Asynchronous), LBC:25
MHz

If so, maybe we should fix it?

--
Timur Tabi
Linux kernel developer at Freescale