[U-Boot] [PATCH v2] at91: change CONFIG_SYS_HZ to 1000

[Eric BENARD]

Hi Jean Christophe,

Jean-Christophe PLAGNIOL-VILLARD a écrit :
> On 21:11 Thu 02 Apr     , Eric BENARD wrote:
>> I confirm that this patch is fixing timeout problems with tftp downloads 
>> on a SAM9260.
>> What is blocking from pushing it mainline ?
> see response e-mail and please note that the current patch is not supposed to
> work because AT91C_MAIN_CLOCK does not exist and it assusme that the
it's using MASTER_CLOCK and it seems to work, at least on my board, and 
the improvement is clearly seen when using tftp (no more T and no more 
retry when downloading a large file).

> main_clock will be at 100000000 which is not the case everytime
> as example on 9G20 it's not
true, I think G20 support was not mainlined when the patch was created 
which can explain this.

> I've send a new patch that introduce an improve of the clock on at91
> which give you the calculated main_clock based on the main crystal and the
> lowlevel settings
> 
I've just seen this patch. I will give a try asap.
Is it interesting to loose time calculating PLL values at each boot when 
these value can be fixed in the board config file ?

Eric