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LeongUn
Visitor
Visitor
173 次查看
注册日期: ‎04-15-2020

Access ATB permission denied

I am try to read FPD_SLCR Module

echo 0xfd610004 > /sys/firmware/zynqmp/config_reg

cat /sys/firmware/zynqmp/config_reg

cat: read error: permission denied

 can u tell me how to get the permission.

 I have set SECURE_ACCESS_VAL to 1 on xpfw_config.h

 

 

 

 

 

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longley
Xilinx Employee
Xilinx Employee
115 次查看
注册日期: ‎04-15-2011

Hi,

Can you read this registers by "devmem 0xfd610004" ?

Thanks,

Longley


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LeongUn
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92 次查看
注册日期: ‎04-15-2020

I can read 0xfd610004, and return 0x0

0xfd610000 return 0x1

 

So, i can access FPD_CLCR by devmem?

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