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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)
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
Download Patch File Download Diff File Expand all files Collapse all files
components/esp_hal_emac/include/hal/emac_periph.h
+23 -1
View File
@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2019-2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2019-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -44,6 +44,7 @@ typedef struct {
uint32_t mii_tx_er_o_idx;
uint32_t rmii_refclk_i_idx;
uint32_t rmii_refclk_o_idx;
uint32_t phy_ref_clk_o_idx;
uint32_t ptp_pps_idx;
} emac_io_info_t;
@@ -65,6 +66,25 @@ typedef struct {
const emac_iomux_info_t *rx_er;
} emac_rmii_iomux_info_t;
typedef struct {
const emac_iomux_info_t *clk_tx;
const emac_iomux_info_t *tx_ctl;
const emac_iomux_info_t *txd0;
const emac_iomux_info_t *txd1;
const emac_iomux_info_t *txd2;
const emac_iomux_info_t *txd3;
const emac_iomux_info_t *clk_rx;
const emac_iomux_info_t *rx_ctl;
const emac_iomux_info_t *rxd0;
const emac_iomux_info_t *rxd1;
const emac_iomux_info_t *rxd2;
const emac_iomux_info_t *rxd3;
} emac_rgmii_iomux_info_t;
typedef struct {
const emac_iomux_info_t *phy_ref_clk;
} emac_ref_clk_iomux_info_t;
typedef struct {
const emac_iomux_info_t *clk_tx;
const emac_iomux_info_t *tx_en;
@@ -86,7 +106,9 @@ typedef struct {
extern const emac_io_info_t emac_io_idx;
extern const emac_rmii_iomux_info_t emac_rmii_iomux_pins;
extern const emac_rgmii_iomux_info_t emac_rgmii_iomux_pins;
extern const emac_mii_iomux_info_t emac_mii_iomux_pins;
extern const emac_ref_clk_iomux_info_t emac_ref_clk_iomux_pins;
#if SOC_PAU_SUPPORTED && SOC_EMAC_SUPPORT_SLEEP_RETENTION
#define EMAC_REGDMA_LINK_EMAC_START_BEGIN (10)