[U-Boot] [PATCH] ppc: Increase precision of ticks2usec
wd at denx.de
Sun Mar 8 23:46:43 CET 2009
Dear Benoit Monin,
In message <9454366.19868.1236182927234.JavaMail.www at wwinf8202> you wrote:
> The tick of some PowerPC cpu is running at high frequency and
> it can be used to get microsecond precision from it. Make use
> of div64 to achieve this precision in ticks2usec.
Which problem are you trying to fix?
Where exactly do we need very high accuracy?
What is the overhead of using do_div() versus the old, simple code?
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