[U-Boot] [PATCH v1 (WIP) 00/16] [Timer]API Rewrite

[J. William Campbell]

On 7/12/2011 5:33 PM, Graeme Russ wrote:
> Hi Reinhard,
>
> On 13/07/11 02:08, Reinhard Meyer wrote:
>> Dear J. William Campbell, All
> [snip]
>
>> Lets just keep the current functions udelay(us) and u32 get_timer(), the
>> latter maybe without parameter. Remove all *masked() and *reset() functions
> This is happening and has Wolfgang's 100% support. Patches are done, just
> need to be rebased and resent
>
>> and lets change the timeout values used in code that also NIOS uses to
>> be 20ms more than the hardware requires. It does not really matter if a
>> *timeout* of 20ms is blown up to 40ms.
> Can't do that - That would mean winding out common code (CFI, Network,
> Serial, FPGA etc, etc) timeouts to global worst-case scenario unless you
> want to add a #define and start littering the code with macro's - Urgh!
Hi All,
       Yes, this is true. However, the time_elapsed_since routine can do 
this dynamically (i.e. add twice the timer resolution) . I think you had 
another function name (at_least) involved, but you can define 
time_elapsed_since as always compensating for the resolution. That will 
fix any resolution questions in a processor-specific way. It is either 
that or the ifdefs. One way or another, the resolution must be 
addressed. Up to now, the implicit resolution has been 1 ms, but we now 
know that is not general enough.

Best Regards,
Bill Campbell

>
> Regards,
>
> Graeme
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