Hi,
I am not able to run u-boot for the Toradex Verdin i.MX8MMini. I am not sure if I built/using u-boot as intended for this platform.
DDR firmware used from: https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.19.bin and arm-trusted-firmware 2.8.0
u-boot was built with the following commands:
--8<-- debian$ export CROSS_COMPILE=aarch64-linux-gnu- debian$ export ARCH=arm64 BL31=/usr/lib/arm-trusted-firmware/imx8mm/bl31.bin debian$ make verdin-imx8mm_defconfig debian$ make -j6 flash.bin --8<--
1) running via serial download: ===============================
--8<-- debian$ sudo uuu SDP: boot -f flash.bin uuu (Universal Update Utility) for nxp imx chips -- lib1.4.193
Success 0 Failure 0
1:4 1/ 1 [=================100%=================] SDP: boot -f flash.bin Okay --8<--
Produces the following output:
--8<-- U-Boot SPL 2023.07-rc1-00199-g1917a1a8a8 (May 08 2023 - 13:11:50 +0200) WDT: Started watchdog@30280000 with servicing every 1000ms (60s timeout) SPL: failed to boot from all boot devices ### ERROR ### Please RESET the board ### --8<--
2) running from SDCard: =======================
--8<-- debian$ sudo dd if=flash.bin of=/dev/sdb bs=1024 seek=33 1206+1 records in 1206+1 records out 1234992 bytes (1.2 MB, 1.2 MiB) copied, 0.260789 s, 4.7 MB/s debian$ sync --8<--
Pressing the 'recovery' switch while reseting the board: Boots into Serial Download Mode
Just reseting the board: Boots into Serial Download Mode
3) running from eMMC: =====================
(no sdcard plugged in)
--8<-- imx8mm$ echo 0 > /sys/block/mmcblk1boot0/force_ro imx8mm$ dd if=flash.bin of=/dev/mmcblk1boot0 imx8mm$ echo 1 > /sys/block/mmcblk1boot0/force_ro imx8mm$ reboot --8<--
Boots into Serial Download Mode
Any ideas?
Kind regards Manuel