Preloader uboot SPL

Kindly note that there will be some slowness on the first reply due to the public holiday, we will get back to you as soon as possible.

Thanks Kenny. I just want to update this:

Typo error on "I'm not trying to have Linux work on this board....". I meant "I'm NOW trying to have Linux..."

I generated the preloader and uboot binaries using bsp-editor (default settings). I programmed the QSPI with it and the board is booting, or at least shows boot logs on its serial port. The 2 binaries are separate files with preloader-mkpimage.bin on 0x0 and u-boot.bin on 0x60000.

I write the u-boot-with-spl.sfp on QSPI @ 0x0.

Thanks!

Hi,

Please follow the steps given for Booting vxWorks on Cyclone V in AN724.

This is having steps for custom preloader, preloader changes required for QSPI, creating bootable environment for QSPI.

I am checking internally if there is any newer guide with latest tool. Also, I suggest you to check with vxWorks support team on their cyclone V BSP requirement.

Regards

Tiwari

Hi Tiwari,

vxWorks is already working. What i'm trying to do is make Linux work.

The link you sent is the old method. I can generate the preloader and uboot using the altera soc eds, but i can't generate/make it work using the new method (linux/Ubuntu host system generated).

I managed to generate a preloader/uboot for the Cyclone V board using the new method, programmed my custom board with it, and got some logging output from the serial port. But it's not working properly due to wrong memory size and other stuff, which i think is because i was using the defconfig of an Intel Cyclone V Development board. So i'm currently looking into how to get a defconfig customized for my board. Then i saw this article:

https://www.rocketboards.org/foswiki/Documentation/HOWTOCreateADevicetreeForCycloneVSoC#Required_environment

Will this fix my preloader/uboot issue? At the moment, this step isn't working for me:

[]$ wget https://developer.arm.com/-/media/Files/downloads/gnu-a/10.3-2021.07/\
binrel/gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf.tar.xz

[]$ tar xf gcc-arm-10.3-2021.07-x86_64-arm-none-linux-gnueabihf.tar.xz

Thanks!

Hi,

Is this issue got resolved? I see multiple reply on this.

Let me know if you have any other query on this matter.

Regards

Tiwari

Nope. I have tried to describe where i'm stuck at, so let me know if its not clear.

Is there a newer guide that shows how to create customized defconfigs?

Hi,

Have you done Initial Cyclone V SoC DK board setup, tools setup, and other setup before running the make socfpga_defconfig.

Please check once again from the below link-

https://www.rocketboards.org/foswiki/Documentation/HOWTOCreateADevicetreeForCycloneVSoC?elq_cid=11325872_ts1683264782276&erpm_id=12677771_ts1683264782276#Required_environment

Regards

Tiwari

Hi,

I don't have a Cyclone V SoC DK board, but a custom board that has a working Preloader, u-boot, fpga image, and vxworks written on the board's QSPI. Preloader and u-boot were generated using the old method (bsp gui).

I am only trying to generate a working preloader/u-boot image following the new steps from here:

https://www.rocketboards.org/foswiki/Documentation/BuildingBootloaderCycloneVAndArria10#Cyclone_V_SoC_45_Boot_from_QSPI

The link you sent is for creating a Device Tree, which doesn't appear to be involved in generating a pre-loader/u-boot. Or am i wrong?

Here are the steps i am doing:

Using our custom SOF and handoff files, i generated the u-boot-splx4.sfp and u-boot-with-spl.sfp using the socfpga_cyclone5_qspi_defconfig. I then programmed our custom board QSPI with the u-boot-splx4.sfp @ 0x0. The board's bootlog shows this error:

U-Boot SPL 2022.10-24687-g61ae22e548-dirty (May 05 2023 - 11:11:06 +0100)
DDR: Warning: DRAM size from device tree (1024 MiB)
mismatch with hardware (0 MiB).
DDR: Error: DRAM size from device tree is greater
than hardware size.
### ERROR ### Please RESET the board ###

Programming the QSPI with u-boot-with-spl.sfp shows the same error log.

I am guessing my error is using the socfpga_cyclone5_qspi_defconfig. If it is, is there a guide on how to edit/customize it?

Thanks!

Hi,

Can you send the screenshot of your u-boot-board.dtsi file.

How much size you are having for DDR on your board, and the range configured in u-boot-board.dtsi file?

Regards

Tiwari

Hi Tiwari,

Screenshot of the socfpga_cyclone5.dtsi below. I assume this is what you're looking for because i don't see u-boot-board.dtsi on my arch/arm/dts directory.

I can't find dtsi mentioned on the rocketboards post. I also don't see the dts getting considered when generating preloader/u-boot on the Cyclone5 steps. Although i see the dts directory getting accessed on the Arria5 steps:

cd $TOP_FOLDER/a10_soc_devkit_ghrd/software/bootloader/u-boot-socfpga
./arch/arm/mach-socfpga/qts-filter-a10.sh \
../../../hps_isw_handoff/hps.xml \
arch/arm/dts/socfpga_arria10_socdk_qspi_handoff.h

My custom board has a 4GB DDR3L memory.

Thanks!