feat(esp_eth): add ESP32-S31 EMAC support

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Add internal EMAC support for ESP32-S31, including:
- HAL/LL layer: emac_ll, emac_hal, emac_clk, emac_periph for S31
- SOC layer: register structs, soc_caps, peripherals linker script,
  interrupt definitions
- MAC driver: clock source configuration via Kconfig, GPIO/DMA
  adaptations, PHY register defs for clause-45 MDIO
- Ethernet examples updated for S31 (basic, build-test-rules, PTP
  readme)
- Refactored existing ESP32/ESP32-P4 EMAC code for shared patterns
  (emac_clk extraction, struct alignment, periph descriptor cleanup)

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This commit is contained in:

Ondrej Kosta

2026-05-21 15:59:42 +08:00

parent c7d6c41198

commit edbf8856ae

39 changed files with 3558 additions and 173 deletions

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components/esp_hal_emac/esp32s31/include/hal/emac_ll.h

+1200 -11

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