[twcook86]

Adds port for nxp mcx e247

Goes with wolfSSL/wolfBoot#983

[Copilot]

🟡 Changes recommended

The MAC can retain its default 100 Mbps/full-duplex settings after a link-wait timeout, causing traffic failures or duplex mismatches when the PHY later negotiates different settings.

1 open issue

• Update MAC speed and duplex when PHY negotiation changes · New

What changed in this PR

Adds a wolfIP Ethernet port for the NXP MCX E247, supporting the wolfBoot integration in companion PR wolfSSL/wolfBoot#983.

Changes:

• Adds a polled Ethernet driver with board pin setup, PHY initialization, and frame send/receive callbacks.
• Provides memory-conscious wolfIP configuration with DHCP enabled.
• Documents FRDM-MCXE247 defaults, integration, and memory-placement requirements.

File	Description
src/​port/​nxp_mcxe_enet/​README.md	Documents board defaults, integration, and SRAM requirements.
src/​port/​nxp_mcxe_enet/​nxp_mcxe_enet.h	Defines the driver API and configurable PHY/MAC defaults.
src/​port/​nxp_mcxe_enet/​nxp_mcxe_enet.c	Implements hardware initialization, frame callbacks, and PHY status access.
src/​port/​nxp_mcxe_enet/​config.h	Sets socket and buffer limits, network defaults, and DHCP configuration.

_{Review effort: Balanced}

[wolfSSL-Fenrir-bot]

Fenrir Automated Review — PR #193

Scan targets checked: wolfip-src, wolfip-bugs
Not reviewed (no scan target covers them): src/port/nxp_mcxe_enet/README.md
Coverage: 3 of 3 in-scope changed file(s) opened by the reviewer

Fenrir result: Approved ✅

No new issues found in the changed files.

Advisory only — this automated result does not count as a GitHub approval.

Review tier: Max