For boards such as Waveshare's ESP32-P4-WIFI6-POE-ETH: WiFi through the
board's ESP32-C6 on SDIO (esp-hosted), Ethernet on the P4's RMII MAC with
an IP101. Not tested on a device: no P4 board was at hand.
- platformio.ini: env esp32p4 (esp32-p4_r3, chip v3.01+) and esp32p4es
(esp32-p4, the esp32p4_es libraries, chips before v2.0). An image runs
on one of the two only, so each has its own release files, chip models
"p4" and "p4es". Both keep the OTA slot: at level 2 they leave about
128 KB of it.
- Ethernet clock mode: stored as eth_clock_id_t in the ESP32's numbering
and translated by name, like the PHY id. The P4's eth_clock_mode_t is
the IDF's emac_rmii_clock_mode_t, whose 0 is a deprecated default; only
clock in (GPIO 50) translates there.
- P4 Ethernet defaults: the Waveshare wiring (IP101 as TLK110, address 1,
MDC 31, MDIO 52, reset 51), board type 8. The ESP32's put MDIO on an
SDIO pin.
- Settings take pins up to GPIO 54, the P4's last, instead of 48.
- Radio defaults: SPI 32/33/27, CSN 46 (the framework's Waveshare
variant), TX 2, RX 3.
- Web UI: a Waveshare ESP32-P4-ETH preset, the P4's clock mode, pin lists
up to GPIO 54 without the pins the C6 link, Ethernet, USB and UART0 use.
- CI builds and releases both, with their ELFs; bootloader at 0x2000.
- ADR 0003: amended.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Prepares the move to Arduino 3.x / ESP-IDF 5.5, which renumbers
eth_phy_type_t (ETH_PHY_GENERIC is now 0) and only has the RMII MAC
API on the original ESP32.
- Store the PHY chip as our own id (eth_phy_id_t, the 2.x values) and
translate it by name at ETH.begin(), so NVS, backups and the web UI
keep their numbers on either framework.
- Build Ethernet only where CONFIG_ETH_USE_ESP32_EMAC is set instead of
everywhere but the C6. C3 and S3 could never use it. A stored
Ethernet connection falls back to Wi-Fi on those chips.
- /networksettings reports hasEthernet; the UI hides the Ethernet
options without it.
- Fix the UI PHY list: 5 is the KSZ8041, add the KSZ8081 (6), drop the
DM9051, an SPI chip the MAC can't drive.
- SSDP takes its address from WiFi/ETH.localIP() instead of the
tcpip_adapter API IDF 5 removed.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
