topic Re: IMX6Q U-BooT in i.MX Processors

IMX6Q U-BooT

CAT5000 — Tue, 07 Jul 2026 08:50:39 GMT

Hi, I have a custom camera with an IMX6q processor.
I have working firmware on an old bootloader and an old kernel.
I need to update the bootloader and kernel.
But I can't get past the kernel loading stage.
The UART log is always empty.
Please help.

Re: IMX6Q U-BooT

Manuel_Salas — Tue, 07 Jul 2026 17:01:20 GMT

Hello @CAT5000

Hope you are doing very well.

Please specify the current BSP version and the new one.

Also, your Software changes related to the UART where is defined for Console.

Best regards,

Salas.

Re: IMX6Q U-BooT

CAT5000 — Wed, 08 Jul 2026 10:12:21 GMT

Working bootloader version
U-Boot 2018.03 (Apr 22 2021 - 04:17:10 -0400)

CPU: Freescale i.MX6Q rev1.3 996 MHz (running at 792 MHz)
CPU: Automotive temperature grade (-40C to 125C) at 30C
Reset cause: POR
Model: Freescale i.MX6 Quad SABER Smart Device Board
Board: MX6-SabreSD
Watchdog enabled
DRAM: 2 GiB
PMIC: PFUZE100! DEV_ID=0x10 REV_ID=0x21
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
Loading Environment from MMC... Card did not respond to voltage

My board is a reference board with SabreSD
I have all the schematics and data
I'm not good at this kind of task, but I'd like to update the firmware to try out the new features.

Re: IMX6Q U-BooT

Manuel_Salas — Wed, 08 Jul 2026 18:19:37 GMT

Hello!

Actually, we have a guide for porting our processors to the last BSP version.

Please take a look to the UG10165 (i.MX Porting Guide).

There are described the changes that you need to do in U-boot.

Also, if you have the Sabre board, you can simply download the last version Pre-compiled image from Embedded Linux for i.MX Applications Processors and flash to your board.

Best regards,

Salas.