topic Re: BL2 Bootloader Hang in S32G

BL2 Bootloader Hang

y2jsh — Fri, 26 Sep 2025 05:58:57 GMT

Hello,

I am using a custom configuration of a board based on the S32G3 RDB3 board as reference with the BSP43. The build runs through but while flashing with the fip.bin-qspi & flashimage.bin file, the bootloader hangs after executing BL2. It is not going into the BL31 function. (See screenshot below).

I have applied a patch to debug. As per the log on the UART console, the entry point address for BL31 is set to 0xFF600000.

As per the BSP43 UM, the base address for the BL31 is mentioned as 0xFF800000.

Could you also share the details of the BL31 & BL33 sizes so that we know if we need to translate addresses.

Require support for debugging this issue.

Re: BL2 Bootloader Hang

chenyin_h — Fri, 26 Sep 2025 08:57:52 GMT

Hello, @y2jsh

Thanks for your post.

May I know the bootloader version you used? I assume that the board booted from QSPI, may I know where you put the fip.bin? on QSPI or SD?

Chenyin

Re: BL2 Bootloader Hang

y2jsh — Fri, 26 Sep 2025 09:06:48 GMT

Hi.

1. How can i know how to check which version of the bootloader i am using?

2. Yes the fip.bin-qspi is flashed onto a NOR FLASH with QSPI

Re: BL2 Bootloader Hang

chenyin_h — Mon, 29 Sep 2025 02:18:14 GMT

Hello, @y2jsh

Thanks for your reply.

1. The example bootloader is usually from the GoldVIP package or Integration_Reference_Examples package, may I know where you derived the bootloader from? from which version of the GoldVIP(or Integration_Reference_Examples)?

2. Commonly, when using BSP42 or earlier, the fip.bin would be flashed to the QSPI, but since BSP43, the boot image for A53 side is split into 2 images, then you may need to flash the bl2_w_dtb.bin to the QSPI instead of fip.bin.

Chenyin

Re: BL2 Bootloader Hang

y2jsh — Tue, 30 Sep 2025 11:55:08 GMT

Hello,
1. We are using the TF-A & U-Boot from the nxp git repo itself by checking out the bsp43 branch
2. As for the dtb.bin, we do not seperate both of them, the fip.bin-qspi also has the bl2 data. The linux log you see is coming from the fip and flashimage.bin files

Re: BL2 Bootloader Hang

chenyin_h — Thu, 02 Oct 2025 15:45:00 GMT

Hello, @y2jsh

Thanks for your reply.

I could understand that you boot the board solely via QSPI using BSP43.

By default with BSP43, once finished the Yocto building, there would be several images generated.

1. If you are willing to directly flashing the fsl-image-flash-s32g399ardb3.flashimage, then it includes all images that used to boot from QSPI, you may not need to flash other images that generated.(like fip.bin-qspi mentioned)

2. If you are willing to only flashing the Bootloader part(TFA and uboot), then you may flash the following two images step by step as follows: Chapter 4.2.5 of BSP43UM for S32G3

Chenyin

Re: BL2 Bootloader Hang

y2jsh — Tue, 07 Oct 2025 05:22:55 GMT

Helllo,
Thank you for the reply.
i have tried the following ways for flashing to debug the issue :
1. I have erased all memories NOR & EMMC so that the boot can be clean as this would help in debugging the issue.
2. I flashed the fip.bin & flashimage.bin. This results in the attached screenshot from my initial post where BL2 hangs.
3. I flashed the dtb, fip & flashimage, it aso results in the same issue.
4. i flashed only the fip, this did not give any prints on the uart console even after reset.

As per my understanding, our yocto output has the BL2 & U-Boot in the fip.

If the DTB file is not flashed, the BL2 code would not execute. This is my understanding.

Re: BL2 Bootloader Hang

chenyin_h — Thu, 09 Oct 2025 02:09:17 GMT

Hello, @y2jsh

Sorry for the delay due PTO.

1. May I know if you have found the image that generated from Yocto which named fsl-image-flash-s32g399ardb3.flashimage?(or similar name since you used custom board, not sure how you had modified the Yocto source/configuration), it could usually generated via the command bitbake fsl-image-flash.

2. Only flashing the fsl-image-flash-s32g399ardb3.flashimage to your QSPI, and then set your board to boot from QSPI, to check if could boot correctly, kindly share the log if still issues.

Thanks.

Chenyin

Re: BL2 Bootloader Hang

y2jsh — Mon, 13 Oct 2025 05:57:02 GMT

Hello.

1. Yes i have identified the file & i am flashing the same.

2. Yes, i did this as you requested. i am getting same logs as my initial post mentions.

Re: BL2 Bootloader Hang

chenyin_h — Mon, 13 Oct 2025 08:58:20 GMT

Hello, @y2jsh

Thanks for your reply.

I'd like to share with the application I had tested from my side, since it is too big to share in the community, let me send it via mail.

Chenyin

Re: BL2 Bootloader Hang

y2jsh — Mon, 13 Oct 2025 09:01:39 GMT

Hello,
Thank you. Do you need my email or any other information?

Re: BL2 Bootloader Hang

chenyin_h — Mon, 13 Oct 2025 09:07:22 GMT

Hello, @y2jsh

You are welcome.

Commonly it is not needed, I will continue supporting your issue via the support system.

Chenyin