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MM-ATH's avatar
MM-ATH
Icon for Occasional Contributor rankOccasional Contributor
1 year ago

Agilex 5 - HPS first - u-boot stuck if rebooting

Hello, I have problem after reboot of my system (reboot in linux console or press HPSrst button on AXE5-Eagle devboard), or if I fit fpgacore.rbf from u-boot twice, than boot from emmc stuck on: ...
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tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
11 months ago

Hi


For now there is a workaround you need to change the boot command.

In the boot command, instead of "bridge enable" could you change it to "bridge enable 0x3b".

Instead of enabling all the bridge we skip enabling the F2H bridge.


Regards

Jingyang, Teh


MM-ATH's avatar
MM-ATH
Icon for Occasional Contributor rankOccasional Contributor
11 months ago

Unfortunatelly it does not work. I have changed fitfpga command to:

fitfpga=load mmc 0:1 $loadaddr d/design.core.rbf ; dcache flush ; bridge disable ; fpga load 0 $loadaddr $filesize ; bridge enable 0x3b;

but behavior is same (i have tried also not disable bridges before fpga load).

I figured out that also FPGA design or gpio outputs have some problem. FPGA blinks with the leds, if I fit core.rbf twice, LEDs are not blinking, if I fit three times, LEDs are blinking (four times sometimes not blinking).

If I fit FPGA three times (so LEDs are blinking), uboot now also stuck, before there was also situation, that uboot did not stuck, but boot was not succesfull, there was some problem with emmc (irq?) during linux system boot.