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Visitor varunmurali1
Visitor
275 Views
Registered: ‎07-09-2019

Incosistent power on results with ZCU104

We purchased a ZCU104 evaluation board recently and get this error periodically while using the board. The SD card is loaded with a base PYNQ image.

[ 6.595100] platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
[ 6.603720] cfg80211: failed to load regulatory.db
[ 7.019070] [drm] Cannot find any crtc or sizes
[ 17.911037] mmc0: Timeout waiting for hardware cmd interrupt.
[ 17.916784] mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
[ 17.923219] mmc0: sdhci: Sys addr: 0x00000008 | Version: 0x00001002
[ 17.929650] mmc0: sdhci: Blk size: 0x00007200 | Blk cnt: 0x00000000
[ 17.936082] mmc0: sdhci: Argument: 0xaaaa0000 | Trn mode: 0x00000023
[ 17.942514] mmc0: sdhci: Present: 0x01f70000 | Host ctl: 0x0000001f
[ 17.948946] mmc0: sdhci: Power: 0x0000000f | Blk gap: 0x00000080
[ 17.955378] mmc0: sdhci: Wake-up: 0x00000000 | Clock: 0x00000207
[ 17.961809] mmc0: sdhci: Timeout: 0x00000009 | Int stat: 0x00000001
[ 17.968242] mmc0: sdhci: Int enab: 0x02ff008b | Sig enab: 0x02ff008b
[ 17.974673] mmc0: sdhci: AC12 err: 0x00000000 | Slot int: 0x00000001
[ 17.981105] mmc0: sdhci: Caps: 0x31e8c881 | Caps_1: 0x00002007
[ 17.987537] mmc0: sdhci: Cmd: 0x00000d1a | Max curr: 0x00000000
[ 17.993969] mmc0: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0x0076b27f
[ 18.000401] mmc0: sdhci: Resp[2]: 0x325b5900 | Resp[3]: 0x00000900
[ 18.006832] mmc0: sdhci: Host ctl2: 0x00000000
[ 18.011268] mmc0: sdhci: ADMA Err: 0x00000000 | ADMA Ptr: 0x000000005fc9820c

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5 Replies
Teacher drjohnsmith
Teacher
253 Views
Registered: ‎07-09-2009

Re: Incosistent power on results with ZCU104

easiest guess is you have a SD card thats not up to the job,
<== If this was helpful, please feel free to give Kudos, and close if it answers your question ==>
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Visitor varunmurali1
Visitor
226 Views
Registered: ‎07-09-2019

Re: Incosistent power on results with ZCU104

This error is now repeatable using 2 new SD cards (San Disk 16Gb).

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Teacher drjohnsmith
Teacher
182 Views
Registered: ‎07-09-2009

Re: Incosistent power on results with ZCU104

Apart form trying a faster card, or from different manufacturers,
Im out of guesses then,
<== If this was helpful, please feel free to give Kudos, and close if it answers your question ==>
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Moderator
Moderator
92 Views
Registered: ‎06-14-2010

Re: Incosistent power on results with ZCU104

Hello @varunmurali1 ,

Please check the following similar forum topic and see if this helps? 

https://forums.xilinx.com/t5/Embedded-Linux/zcu102-petalinux-booting-error/td-p/995034

Hope this helps.

Kind Regards,
Anatoli Curran,
Xilinx Technical Support
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Moderator
Moderator
75 Views
Registered: ‎04-12-2017

Re: Incosistent power on results with ZCU104

Hello @varunmurali1 

Please refer following Answer record for finding work around on this issue:

https://www.xilinx.com/support/answers/73079.html

You will need to add following DT node and rebuild your images. 

# system-user.dtsi content 

"/include/ "system-conf.dtsi"
/ {
};

&sdhci1 {
        no-1-8-v;
};
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