[PATCH v3] SDRAM Calibration Failed fix for GEN5 SoCFPGA
Quentin Schulz
quentin.schulz at cherry.de
Wed Nov 26 12:12:50 CET 2025
Hi Brian,
On 11/26/25 11:55 AM, Sune Brian wrote:
>> Yes, but I only want at least one board this happens on so we can try
>> figure out exactly what happens with this watchdog.
>
> I am a bit confused. Sounds like this is affecting the entire U-Boot?
I believe so.
> Isn't this just a Cyclone V GEN5 socfpga issue?
>
I don't think so.
I think the issue is that CONFIG_WATCHDOG selects CYCLIC but only
implies SPL_CYCLIC and CONFIG_SPL_WATCHDOG does nothing wrt SPL_CYLIC.
ARCH_SOCFPGA selects SPL_WATCHDOG so it is always enabled, but
SPL_CYCLIC may not always be enabled.
> It is a very generic setup.
> clone from fresh
>
> make clean
> make mrproper
> make socfpga_cyclone5_defconfig
> make prepare
>
> Now please cp .config to .config_default
>
> Ok now
> make menuconfig
> /WDT turn on and save
Only WDT or also SPL_WDT?
> make menuconfig
> turn all those you have enabled
Which ones?
> save again.
>
> then gvimdiff .config .config_default
>
> You will see what I meant.
>
Can you run "make savedefconfig" after your "save again" step and copy
the content of the file called "defconfig" that was just generated in a
mail? That would really help me, thanks!
Cheers,
Quentin
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