test0r 05d0d8edd5 patch_timeouts v2: counted-loop trampolines instead of NOPs ...

v1 NOP approach was WRONG — removed the poll entirely, proceeding with
stale/incomplete register values. ZQ cal, DFI handshake, and PHY mailbox
all require actual polling until the hardware responds.

v2 uses trampoline functions appended to the binary:
- Each poll site jumps to a trampoline that retries with a W16 counter
- 16384 iterations (~91us at 1.8GHz) before timeout
- On timeout, returns with condition NOT met (hits existing error path)
- On success, returns normally (original behavior preserved)
- W16 (IP0) used as counter — caller-saved, not used by poll loop bodies

35 poll loops patched, 13 non-poll backward branches left intact.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-11 21:31:38 +02:00

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