We have a custom board based off of the MCIMX8QM-CPU MEK Platform. We are trying to bring it up using that image as provided by NXP just to get a bootable unit.
When attempting to use the UUU tool it repeatedly tries to load the boot file until it is cancelled with ctrl+c as shown in the image below. We currently are not sure if our UART that is connected to the imx8 is working (it is routed through an FPGA that, while programmed, is not vetted), but we don't see anything on that connection when viewed at 115200,8,n,1.
Does this point to anything obvious in the bring up process?
Thanks
Contents of uuu.auto-imx8qmmek
uuu_version 1.2.39
# This command will be run when i.MX6/7 i.MX8MM, i.MX8MQ
SDP: boot -f imx-boot-imx8qmmek-sd.bin-flash
# This command will be run when ROM support stream mode
# i.MX8QXP, i.MX8QM
SDPS: boot -f imx-boot-imx8qmmek-sd.bin-flash
# These commands will be run when use SPL and will be skipped if no spl
# SDPU will be deprecated. please use SDPV instead of SDPU
# {
SDPU: delay 1000
SDPU: write -f imx-boot-imx8qmmek-sd.bin-flash -offset 0x57c00
SDPU: jump
# }
# These commands will be run when use SPL and will be skipped if no spl
# if (SPL support SDPV)
# {
SDPV: delay 1000
SDPV: write -f imx-boot-imx8qmmek-sd.bin-flash -skipspl
SDPV: jump
# }
FB: ucmd setenv fastboot_dev mmc
FB: ucmd setenv mmcdev ${emmc_dev}
FB: ucmd mmc dev ${emmc_dev}
FB: flash -raw2sparse all imx-image-multimedia-imx8qmmek.wic
FB: flash bootloader imx-boot-imx8qmmek-sd.bin-flash
FB: ucmd if env exists emmc_ack; then ; else setenv emmc_ack 0; fi;
FB: ucmd mmc partconf ${emmc_dev} ${emmc_ack} 1 0
FB: done
There is no SD card, just an on-board eMMC and flash device.
We tried other board images with uuu and they all fail the boot step immediately with,
LIBUSB_IO_ERRORthe fact that this one gets past that and is the image based on the board we referenced the design after seems promising.
Attempting with an images based on a different dev board,
