Same SoC, working mainline port. Strip everything speculative:
- no /memory node (Sony relies on the bootloader to inject it)
- no qcom,msm-id / qcom,board-id (Sony's Qualcomm bootloader doesn't
need them)
- no reserved-memory / ramoops / framebuffer overrides
- regulator tree copied verbatim from Sony, including the rails it
deliberately omits with 'the board seems to crash on access' - our
MTP-derived tree (with vdd-*-supply chains + bob2 + L4) may have been
voting an RPMh rail that resets the SoC early.
Only the debug UART and USB HS-peripheral are enabled - enough for the
initramfs + USB networking. cmdline: console=ttyMSM0 (no earlycon).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QF5HebjUsRaxbW4cBX6HJP
snlavaiseandClaude Sonnet 5
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