Part Number: AM625SIP
Other Parts Discussed in Thread: AM625
I have produced 100 custom boards using the AM625, and some of the boards a boot hang.
After reapplying power, they operate normally. This issue occurs regardless of whether the power-off time is a few seconds or tens of seconds.
The problem happens consistently with both eMMC and SD card boot.
What should I check first to resolve this issue?
Below is the boot log where the hang occurs.
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U-Boot SPL 2023.04-dirty (Mar 24 2024 - 18:19:29 +0900)
SYSFW ABI: 3.1 (firmware rev 0x0009 '9.1.8--v09.01.08 (Kool Koala)')
SPL initial stack usage: 13384 bytes
Trying to boot from MMC1
Authentication passed
Authentication passed
Authentication passed
[2026-02-10 20:47:41.346] Authentication passed
[2026-02-10 20:47:41.346] Authentication passed
[2026-02-10 20:47:41.377] Starting ATF on ARM64 core...
[2026-02-10 20:47:41.377]
[2026-02-10 20:47:41.377] NOTICE: BL31: v2.9(release):v2.9.0-614-gd7a7135d32-dirty
[2026-02-10 20:47:41.377] NOTICE: BL31: Built : 09:34:15, Aug 24 2023
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The boot process hangs after BL31.
