Using Uboot 2020.04, data read write between HPS to FPGA using LWH2F Bridge access

[Ravin11]

I am trying read and write data from fpga using uboot application, using Cyclone5 socfpga(DE10 NANO)

Enabled the bridge access (socfpga_bridges_reset(0)) and permod register also programmed the fpga.

Can anyone suggest how to access the fpga register data.

Thanks,

Ravin

[JingyangTeh]

Hi

To access to the IPs connected through the LWH2F bridge you could us ethe md command.

https://unix.stackexchange.com/questions/120374/memory-display-using-md-in-u-boot

For the LWH2F bridge you would need to start from the address 0xFF200000.

https://www.intel.com/content/www/us/en/programmable/hps/cyclone-v/hps.html#sfo1410068170804.html#sfo1410068170804

Regards

Jingyang, Teh