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Jiayi_H_Intel's avatar
Jiayi_H_Intel
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

How to access QSPI Flash from HPS f2h interface

Hi expert, I am using Stratix 10 SoC board. And my FPGA logic needs to access flash. In my setup, HPS boot from SD card not QSPI Flash. And QSPI locate at 0xff8d2000 in HPS's map. I connect my...
aikeu's avatar
aikeu
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi Jiayi_H_Intel,


When u-boot boot up, in u-boot type help. Check for a command which is bridge. Then select bridge enable and see any difference.


Thanks.

Regards,

Aik Eu



  • Jiayi_H_Intel's avatar
    Jiayi_H_Intel
    Icon for Occasional Contributor rankOccasional Contributor
    3 years ago

    Hi Aik Eu,

    I tied your suggestions, seems no difference. Can you please help?

    Here are details of my design and test step:

    I use jtag master to access hps's f2h interface:

    Arm device tree is:

    In arm uboot boot up terminal, I type "bridge enable", and then "boot" for default boot.

    In system console:

    set service_paths [get_service_paths master]
    set master_service_path [lindex $service_paths 1]
    set claim_path [claim_service master $master_service_path mylib]
    master_write_32 $claim_path 0xff8d2000 0x1234

    master_read_32 $claim_path 0xff8d2000 0x1

    Read returns 0x0. So my write to flash is not successfully.

    Can you please help with that?