Hello,
after removing the function socfpga_sdram_apply_static_cfg() in
misc_gen5 we can not use the FPGA2SDRAM bridge.
Without the apply static cfg the kernel crash every time,
if we try to write @ the fpga2sdram bridge. After an soft reset
everything is working.
If we add the socfpga_sdram_apply_static_cfg() in the
u-boot source code, everything is fine.
Now we can use the fpga2sdram bridge after power on.
Our setup:
- u-boot v2020.01
- load and write fpga firmware
- enable bridges
- boot linux
I have found some information at
<https://support.criticallink.com/redmine/projects/mityarm-5cs/wiki/Important_Note_about_FPGAHPS_SDRAM_Bridge>
<http://u-boot.10912.n7.nabble.com/WG-Linux-hang-td314276.html>
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Best regards
Nico Becker
