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Observer
Observer
505 Views
Registered: ‎03-31-2014

MPSoC - SD card not detected on Zynq UltraScale+

Hi,

I am having issues with the mounting of an SD Card on Linux on the Zynq UltraScale+ MPSoC (ZU6EG).

Linux boots successfully, although I see the following error while booting.

[2.797064] mmc1: error -110 whilst initialising SD card

...and in Linux I cannot see the SD card in the df output, so I cannot mount it.

# df
Filesystem           1K-blocks      Used Available Use% Mounted on
devtmpfs                881260         4    881256   0% /dev
tmpfs                  1023832        92   1023740   0% /run
tmpfs                  1023832        72   1023760   0% /var/volatile
/dev/mmcblk0p1          197676     56327    141350  28% /media/card
/dev/mmcblk0p2        14442556     81176  13608016   1% /run/media/mmcblk0p2

Same issue is reported in AR# 67775, mentioning the root cause as the speed class of the SD Card (greater than 4). Suggested solution is a replacement device tree, however no details are provided and the replacement is only for the ZCU102 Evaluation Board.

I use an already tested SD Card (AR# 66779)

SanDisk 16GB, UHS-1, Speed Class 10

 

Any ideas, how i might solve the problem?

 

 

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3 Replies
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Visitor
Visitor
348 Views
Registered: ‎10-05-2018

Hi,

Did you get any further with this? Are you using your custom board or an evaluation board? Thanks!

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Xilinx Employee
Xilinx Employee
291 Views
Registered: ‎01-28-2020

Hi,

Can you check if this AR (https://www.xilinx.com/support/answers/73079.html) helps?

Thanks,

Sowmya

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Visitor
Visitor
279 Views
Registered: ‎10-05-2018

Hello,

I believe the suggestion in the AR places SD1 into non ultra high-speed mode. I am interested in getting it to work with SD3.0 and UHS-1 cards with the voltage translator. Thank you.

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