Hi,
while trying to port OEM u-boot (https://github.com/embeddedTS/u-boot) for TS-7970 (https://www.embeddedts.com/products/TS-7970) to latest 2022.04, I cannot get the init.S running.
Connecting GDB+JLink it appears at certain point the processor does not execute: ``` 0x17802200 <s_init>: push {r3, lr} ``` properly and hang there. See attached gdb.txt: sp does not increments, not `x/x $sp` shows any change in memory. Note: `mon memu32 0x93fe38=1` allows you to write memory (and restore it: `mon memu32 0x93fe38=0`).
Also I traced all instructions executed by "orig" OEM delivered u-boot.imx (based on v2015), and "new" one (attached). There is some diffs in IMX ERRATAS (no impact: removing code from orig works fine); I noted new codes `bl s_init` (from start.S) as `blx s_init`, while orig keeps the same. Not sure why and what is the impact.
Any idea what the reason is and how to get this working?
Regards, Andrea