On 2/6/20 11:50 AM, Nico Becker wrote:
Hello,
Hi,
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
Can you send a patch which fixes this for you, with Fixes: tag ? Then it would be clear what you changed.
Thanks