Cyclone V H2F DMA is dead

Hello!

The DMA issue you're facing with U-Boot 2024.07 is likely due to a driver change or a hardware abstraction layer (HAL) modification within the new U-Boot codebase, as the functionality worked on version 2013. To resolve this, you should compare the codebases to identify changes in the DMA driver, check the U-Boot release notes, and verify the issue on a clean build. For a direct solution, the best course of action is to seek guidance from experts by posting on the official Intel® Community Forums or the U-Boot mailing list.

@AlHill @Clint194Lee

I am not sure what you guys trying to say.

However, with my ultra lightweight understanding.

Correct me if the below info are wrong.

ARM PL330 from PrimeCell DMA driver is not provided on main Das U-BOOT repository.

So any vendor or FPSoC build environment creates its variant.

If the original vendor repository aka "https://github.com/altera-fpga/u-boot-socfpga" knows what's the issues.

Why spend hours and hours for cross checking?

Do it in the hard way or the reasonable way i pick the reasonable way.

And for ChatGPT, do 5.x or 4.x do able to resolve issue that not even know where to start?

Ok even you are able to get to know PL330 driver is missing or the code had change then?

Rewritten the driver by yourself? ARM PL330 document may not be open?

>> I seek Intel FAE or Stuffs to settle.

Appreciated all the suggestions.

Hi,

Apologies for the delay in getting back on this case, just got back to office recently. I'm checking on the PL330 DMA driver but unfortunately I'm not able to see any removal notice in our internal database for Primecell PL330 DMA driver from uboot. I'm suspecting during the transition time from Altera - Intel where we switch databases thus probably the history is lost.

There is also some questions asked in Rocketboard forums but unfortunately the site access is intermittent currently as they are transitioning from Rocketboards to Github

https://forum.rocketboards.org/t/how-to-do-a-driver-for-hps-pl330-dma-controller/933

I've check our uboot (from 2020 onwards), didn't seems to have PL330 drivers either in uboot /arch/arm/include/asm/ nor in /drivers/dma folder although there is still some initialization in DTS (eg. socfpga.dtsi)

also was searching around and I saw this adding ARM PL330 DMA driver in uboot (back in 2016) https://patchwork.ozlabs.org/project/uboot/patch/20161010155223.23751-2-dinguyen@kernel.org/

In some of the guide screenshot and KDB (for another issue) (https://www.intel.com/content/www/us/en/support/programmable/articles/000088369.html) , it seems the dma-pl330 is now loaded on kernel side (also there is the pl330 on kernel repo https://github.com/altera-fpga/linux-socfpga/blob/socfpga-6.12.19-lts/drivers/dma/pl330.c)

It seems that you already found a solution to this case, if you dont mind, could you elaborate more on the solution?

Thanks

Regards

Kian