MMC speed issue with RaspberryPi 3b, 3a+

[Vincent Fazio]

All,

On 10/1/21 8:22 AM, Mark Kettenis wrote:
>> From: Sergey Suloev <ssuloev at orpaltech.com>
>> Date: Fri, 1 Oct 2021 11:01:18 +0300
>>
>> Hello,
>>
>> I have a problem with MMC speed while using U-boot 2021.07 with
>> raspberryPi - it takes about 2 min to fatload 15MB kernel file.

Please also see this rpi-firmware issue [1] and patchwork series [2].

The series may not be necessary with newer firmware.

>> Any suggestions ?
> Do you have a USB keyboard plugged in?

[1] https://github.com/raspberrypi/firmware/issues/1619
[2] https://patchwork.ozlabs.org/project/uboot/list/?series=262375

-- 
Vincent Fazio
Embedded Software Engineer - ATS
Extreme Engineering Solutions, Inc
http://www.xes-inc.com