Hi,
On 4/12/2025 5:02 am, Sune Brian wrote:
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Ralph Siemsen <[email protected]> 於 2025年12月4日週四 上午4:52寫道：
Hi Brian,
On Wed, Dec 3, 2025 at 1:17 PM Sune Brian <[email protected]> wrote:
But did you disable also all "CYCLIC" as well?
I have "CONFIG_CYCLIC is not set" which disables all the others.
I also have another patch to disable the watchdog, adapted from [1].
This didn't seem to make any difference (but my ram calibration
doesn't take very long).
[1]
https://lore.kernel.org/all/[email protected]/
Hi Ralph,
I do diff the mainstream and Altera trunk.
I cam repeat the same behavior on altera trunk when all WDT CYCLIC turned off.
I plan to investigate under another board.
TBH if it is board specific case then there is nothing harm to simply
turn on CYCLIC or WDT.
But the truth is that Altera trunk force using designware WDT by default.
Because under distro I do full "memtester" and "stressapptest".
Nothing really fails on those two.
I have tried to disable all WDT and CYCLIC configs on both Altera trunk
and mainline U-Boot on my side.
I made some changes to the standard socfpga_cyclone5_defconfig as well
as the common Kconfig to really disable all watchdog configs.
I cannot replicate the issue on both cases, I am able to boot via RAM
through ARM debugger, as well as through MMC boot after triggering reset
in Linux.
I am using our Cyclone V SoC Development Kit, details of the board can
be found here
[1]
https://www.rocketboards.org/foswiki/Documentation/AlteraSoCDevelopmentBoard
I am thinking this could be related to the power supply not being fully
stable before SDRAM calibration, perhaps you could try other reset
methods, such as cold/warm reset, or power cycling the board and see if
there is any difference compared to using the physical reset switch key?
Thanks,
Alif
3) I use socfpga_cyclone5_defconfig and only change minimum settings
that I needs.
From this issue mentioned to current day.
Then it sounds like it is a recent issue... hmm... I'm currently on
2025.10 release version (plus some cherry-picks). I'll give a try on
master/next once I get some other things stabilised...
Regards,
Ralph
The major reason is the ECC on mainstream is completely missing.
BTW [1] I do manually inserted and test no luck on that.
Yet still thank you for the help.
Brian
