[U-Boot] Very slow fatload on bcm2835

[Michal Marek]

On 2015-06-16 06:01, Stephen Warren wrote:
> On 06/11/2015 12:35 PM, Jakub Kicinski wrote:
>> Hello!
>>
>> I'm using latest git source of U-Boot on Raspberry Pi Compute Module 
>> and performance of fatload is quite bad.  Does anyone have any clue
>> about what can be wrong?  Is it the lack of cache?
>>
>> Sample boot log:
> ...
>> reading zImage                
>> 4003816 bytes read in 48930 ms (79.1 KiB/s)
> 
> I see this too. I bisected it to:
> 33fe2fb8df01 ARM: mmc: bcm283x: Remove get_timer_us() from mmc driver
> 
> Marek, this is the second symptom I bisected to this patch. Something
> seems quite wrong with it. Did changing to the other timer function
> change the timer tick rate or something? FWIW, "sleep 10" at the shell
> prompt appears to run for the correct amount of time, so I guess it's
> not that.

I think you meant Marek Vašut. I'm Marek by last name :).

Michal