[U-Boot] [PATCH V2] console: Implement pre-console buffer

[Wolfgang Denk]

Dear Simon Glass,

In message <CAPnjgZ1fXCCFDcwCWgZD7H-siVEV-H+Ks5TPeiT=nGS743fzcg at mail.gmail.com> you wrote:
> 
...
> > +#define CIRC_BUF_IDX(idx) ((idx) % CONFIG_PRE_CON_BUF_SZ)
> 
> The division here sticks in the craw, but unless we go with

Does it?  Why?

> CONFIG_PRE_CON_BUF_SZ_LOG2 then I don't see an easy way around it, and
> since this is serial output we can't honestly claim to worry much
> about performance.

Please see my previous posting
(http://article.gmane.org/gmane.comp.boot-loaders.u-boot/106810)

I don't think 3 additional addembler instructions really play a big
role here.

Best regards,

Wolfgang Denk

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