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jetson-customize-mgbe

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Enable Jetson Thor 25G/10G/1G MGBE QSFP via kernel-DT overlay. Do NOT use for UPHY lane allocation or ODMDATA edits.

skills/jetson-customize-mgbe/SKILL.md

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Nov 9, 2026

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Repository last updated
Nov 6, 2026
License
Apache-2.0

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# Customize MGBE / 25G QSFP

## Overview

Thor T264 exposes mgbe0..mgbe3. On a custom carrier, the 25G QSFP cage
(or 10G / 1G fiber path) is wired to one of them through SerDes — with
or without an external MDIO PHY in front of the cage. This skill
renders the kernel-DT overlay that pairs the BPMP allocation with
kernel-side `status="okay"` + PHY plumbing on `&mgbeN`.

**Out of scope:**
- UPHY lane allocation — owned by `/jetson-customize-uphy`. Refuse if
  the chosen `uphy1-config-N` doesn't allocate the target MGBE.
- All ODMDATA tokens (`mgbeN-speed-*`, sub-node `mgbeN_status=*`) —
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