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SCU FW debug output

Question asked by on Jul 21, 2020
Latest reply on Jul 26, 2020 by Wigros Sun


I'm building the SC FW porting kit


using the "make qm B=mek_myboard R=B0 D=1 DL=5 U=2" command to successfully generate the "build_mx8qm_b0/scfw_tcm.bin" image. I also compiled an NXP demo_app (hello_world) using "SDK_2.5.2_MEK-MIMX8QM/boards/mekmimx8qm/demo_apps/hello_world". This is under Linux.


Using both these files, I prepared a bootable image for the i.MX8QM EVK using imx-mkimage as follows:

"make SOC=iMX8QM flash_b0_cm4_0" and "sudo dd if=./iMX8QM/flash.bin of=/dev/<my SD device> bs=1k seek=32". The bootable image only shows the following debug on the J18 mico-usb debug console:

U-Boot SPL 2020.04-5.4.24-2.1.0+g4979a99482 (May 30 2020 - 13:01:16 +0000)
Normal Boot
WDT:   Not found!
Trying to boot from MMC2_2


I don't see any debug SCU prints, or bootup info. Any suggestions or info ?


Thanks in advance.