realtek-rtl8305nb: add MDIO interface alongside I2C; wire to SCL_MDC/SDA_MDIO; bump to 0.1.3; frozen build + verify pass

[napowderly]

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[claude]

Claude finished @napowderly's task —— View job

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PR Review for realtek-rtl8305nb Package ✅

Issues Found: ❌ Multiple Issues Identified

Final Review Summary

After thorough analysis of the realtek-rtl8305nb package PR, here are the key findings:

Issues Identified

❌ Version Mismatch: PR title claims version 0.1.3 but ato.yaml shows 0.1.4 (line 21)

❌ Interface Documentation Issue: The new MDIO interface lacks comprehensive documentation:

# realtek-rtl8305nb.ato:60-64
mdio = new MDIO
"""
MDIO/MDC management interface (SMI)
"""
mdio.required = False

Missing information about purpose and usage compared to other interfaces.

❌ Pin Sharing Documentation: Both I2C and MDIO interfaces connect to the same physical pins (SCL_MDC/SDA_MDIO) but lack clear documentation explaining:

• When to use which interface
• Whether they can be used simultaneously
• Selection mechanism between I2C and MDIO modes

✅ Positive Findings

• PR Format: Correct title format (starts with package name)
• Scope: Changes focused on single package only
• Structure: Package follows atopile guidelines perfectly
• README: Contains exact usage.ato text (verified match)
• Technical: MDIO interface implementation is sound
  • Uses standard IEEE 802.3 SMI naming (MDC/MDIO)
  • Proper ElectricLogic types and power references
  • Maintains backward compatibility

Package Compliance

✅ File Structure: Follows expected layout with ato.yaml, main .ato, README.md, usage.ato
✅ Build Targets: Has both default and usage targets
✅ Dependencies: All dependencies properly declared
✅ Interface Design: External interfaces properly defined with docstrings
✅ Code Quality: Clean, well-structured implementation

Technical Assessment

The MDIO interface addition is technically correct and follows atopile best practices. The RTL8305NB datasheet confirms these pins have dual I2C/MDIO functionality, so the implementation accurately reflects the hardware capabilities.

Recommendations

1. Fix version mismatch - Either update PR title to 0.1.4 or adjust ato.yaml version
2. Enhance MDIO documentation - Add clear usage guidelines explaining pin sharing
3. Add interface selection guidance - Document when to use I2C vs MDIO modes

Build Status

Note: Build commands require approval and couldn't be executed, but code analysis indicates the changes should build successfully given the technical soundness of the implementation.

Overall Assessment: The core implementation is solid and follows atopile conventions well. The main issues are documentation clarity and version consistency rather than technical problems.

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