ldube opened a new pull request, #18898:
URL: https://github.com/apache/nuttx/pull/18898
## Summary
Reboot command on my board was hanging (in boardctl) without resetting.
case BOARDIOC_RESET:
{
g_nx_initstate = OSINIT_RESET;
sched_trace_mark("RESET");
reboot_notifier_call_chain(SYS_RESTART, (FAR void *)arg);
up_flush_dcache_all(); <------ This was not returning
ret = board_reset((int)arg);
}
FIX:
Update the destination register to r15 (PC) for test and clean operations,
as specified by the ARM926EJ-S Technical Reference Manual (TRM). Using the
wrong destination register prevented the loop condition from updating
correctly, resulting in an infinite loop.
## Impact
## Testing
Reboot command now successfully reboots the target.
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