linux-drivers/
drivers/net/ethernet/freescale/fs_enet

Freescale PowerQUICC CPM and FEC Ethernet controllers (MPC8xx/MPC82xx/MPC512x)

On-chip Ethernet MACs built into Motorola/Freescale PowerPC system-on-chip families from the late 1990s and 2000s, including the MPC8xx and MPC82xx PowerQUICC communications processors (using their CPM1/CPM2 SCC and FCC engines) and the MPC5121/5125 media processors. These parts powered embedded networking gear, industrial controllers, and telecom line cards of that era.

keep-annotate conf=0.82 deploy=low replacement=none subsystem=net category=networking-ethernet
82%

recommendation

Worth keeping but flagging as legacy. The underlying PowerPC SoCs (such as the MPC8260 and MPC8250) have been marked end-of-life by NXP and are no longer sold new, so deployments are limited to installed industrial and embedded systems. Even so, the code is not abandoned: it received a substantial phylink conversion in 2024 and bug fixes as recently as 2026, indicating real users and active upstream care.

repository signals

10 files
3,304 source lines
34 commits, 5y
+316 / −425 lines added / removed, 5y
16 authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 34 total · active in 14/61 months
2021 2022 2023 2024 2025 2026 2021-04: 0 commits · +0 −0 2021-05: 0 commits · +0 −0 2021-06: 0 commits · +0 −0 2021-07: 1 commit · +1 −1 2021-08: 0 commits · +0 −0 2021-09: 0 commits · +0 −0 2021-10: 1 commit · +1 −1 2021-11: 0 commits · +0 −0 2021-12: 0 commits · +0 −0 2022-01: 0 commits · +0 −0 2022-02: 0 commits · +0 −0 2022-03: 0 commits · +0 −0 2022-04: 0 commits · +0 −0 2022-05: 2 commits · +4 −3 2022-06: 1 commit · +1 −1 2022-07: 0 commits · +0 −0 2022-08: 1 commit · +1 −1 2022-09: 2 commits · +1 −4 2022-10: 0 commits · +0 −0 2022-11: 0 commits · +0 −0 2022-12: 0 commits · +0 −0 2023-01: 0 commits · +0 −0 2023-02: 0 commits · +0 −0 2023-03: 0 commits · +0 −0 2023-04: 0 commits · +0 −0 2023-05: 0 commits · +0 −0 2023-06: 1 commit · +1 −1 2023-07: 2 commits · +6 −14 2023-08: 8 commits · +27 −32 2023-09: 0 commits · +0 −0 2023-10: 1 commit · +11 −17 2023-11: 0 commits · +0 −0 2023-12: 0 commits · +0 −0 2024-01: 0 commits · +0 −0 2024-02: 0 commits · +0 −0 2024-03: 0 commits · +0 −0 2024-04: 0 commits · +0 −0 2024-05: 0 commits · +0 −0 2024-06: 0 commits · +0 −0 2024-07: 0 commits · +0 −0 2024-08: 1 commit · +9 −9 2024-09: 9 commits · +243 −331 2024-10: 2 commits · +4 −4 2024-11: 0 commits · +0 −0 2024-12: 0 commits · +0 −0 2025-01: 0 commits · +0 −0 2025-02: 0 commits · +0 −0 2025-03: 0 commits · +0 −0 2025-04: 0 commits · +0 −0 2025-05: 0 commits · +0 −0 2025-06: 0 commits · +0 −0 2025-07: 0 commits · +0 −0 2025-08: 0 commits · +0 −0 2025-09: 0 commits · +0 −0 2025-10: 0 commits · +0 −0 2025-11: 0 commits · +0 −0 2025-12: 0 commits · +0 −0 2026-01: 0 commits · +0 −0 2026-02: 2 commits · +6 −6 2026-03: 0 commits · +0 −0 2026-04: 0 commits · +0 −0

sources

  1. lore.kernel.org

    fs_enet received substantial upstream feature work in 2024 (phylink conversion touching 6 files).

  2. lore.kernel.org

    fs_enet still received bug-fix maintenance in 2026, so it is not an abandoned driver.

  3. cateee.net

    CONFIG_FS_ENET depends on legacy PowerPC families: CPM1, CPM2, or PPC_MPC512x, and remains present in current kernels.

  4. nxp.com

    Representative supported PowerQUICC II SoC MPC8260 is marked 'No Longer Manufactured' by NXP.

  5. nxp.com

    Representative supported PowerQUICC II SoC MPC8250 is marked 'No Longer Manufactured' / 'End of Life' by NXP.

codex reasoning notes (technical)

Local `rg` over the directory identified compatibles and comments tying fs_enet to Motorola/Freescale MPC8xx, MPC82xx, CPM1/CPM2 SCC/FCC, and MPC5121/5125 FEC blocks. `lore_activity` on `drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c` showed active non-treewide maintenance through 2026, including a 2024 phylink conversion and 2026 fixes, which argues against deprecation/removal. `web.search_query` found LKDDb confirming the legacy dependency set and NXP product pages showing representative supported MPC82xx parts are no longer manufactured. Conclusion: hardware is legacy and likely limited to installed/industrial systems, but upstream attention is still real; keep the driver, annotated as legacy.