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Device tree and HPS access

XChoo
Beginner
397 Views

Hello support.

I need to know if the device tree attribute disabled or ok affecting HPS access to FPGA peripherals .

 

0 Kudos
1 Solution
Fawaz_J_Intel
Employee
171 Views

Hello,

The "Disable" and "OK" attributes in the device tree will disable or enable the driver of this peripheral. However, ARM can access the registers of these peripherals. You can use direct access via virtual memory to do this task.

 

Please let me know if you need further help.

 

Thank you

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2 Replies
Fawaz_J_Intel
Employee
172 Views

Hello,

The "Disable" and "OK" attributes in the device tree will disable or enable the driver of this peripheral. However, ARM can access the registers of these peripherals. You can use direct access via virtual memory to do this task.

 

Please let me know if you need further help.

 

Thank you

XChoo
Beginner
171 Views

Thank you Fjumaah,

Your description was clear and help me to undestand the driver relation with disable or OK.

 

Reply