[U-Boot] [PATCH v2] mmc: omap: timeout counter fix

Nishanth Menon nm at ti.com
Tue Oct 26 15:58:12 CEST 2010


Ghorai, Sukumar had written, on 10/26/2010 12:34 AM, the following:
[...]
> [Ghorai] Thanks.. This is the best approach. 
> Otherwise udelay() will increase the boot time. 
Please define "increase the boot time" with the context to the patch 
where you think the increase of boot time will be? In my experience, it 
has not. the iterations are such that:
while (condition_not_met)
	udelay(10);
This is reasonable enough to wait till the condition is met.
a) u-boot boot logic is not invoked until "mmc part 0" is invoked -> 
u-boot boot time does not change
b) the actual fatload by itself will only incur minor latency addition - 
IMHO - necessary addition - in cases where the check conditions are not met.

would be great if you can illustrate within the patch areas which need 
continuous checks Vs the ones that do not need continuous checks.

-- 
Regards,
Nishanth Menon


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