esp32/network_lan: Add support for LAN8670 PHY.

This adds support for LAN8670 to the esp32 port.  Enabled conditionally for
the esp32 target, if ESP-IDF version is new enough (v5.3 or newer).

Fixes issue #15731.

Signed-off-by: Damien George <damien@micropython.org>
Signed-off-by: Angus Gratton <angus@redyak.com.au>

ports/esp32/main/idf_component.yml

@@ -5,5 +5,10 @@ dependencies:
     rules:
       - if: "target in [esp32s2, esp32s3]"
     version: "~1.0.0"
+  espressif/lan867x:
+    version: "~1.0.0"
+    rules:
+      - if: "target == esp32"
+      - if: "idf_version >=5.3"
   idf:
     version: ">=5.2.0"

ports/esp32/modnetwork.h

@@ -28,7 +28,22 @@
 
 #include "esp_netif.h"
 
-enum { PHY_LAN8710, PHY_LAN8720, PHY_IP101, PHY_RTL8201, PHY_DP83848, PHY_KSZ8041, PHY_KSZ8081, PHY_KSZ8851SNL = 100, PHY_DM9051, PHY_W5500 };
+// lan867x component requires newer IDF version
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 3, 0) && CONFIG_IDF_TARGET_ESP32
+#define PHY_LAN867X_ENABLED (1)
+#else
+#define PHY_LAN867X_ENABLED (0)
+#endif
+
+enum {
+    // PHYs supported by the internal Ethernet MAC:
+    PHY_LAN8710, PHY_LAN8720, PHY_IP101, PHY_RTL8201, PHY_DP83848, PHY_KSZ8041, PHY_KSZ8081,
+    #if PHY_LAN867X_ENABLED
+    PHY_LAN8670,
+    #endif
+    // PHYs which are actually SPI Ethernet MAC+PHY chips:
+    PHY_KSZ8851SNL = 100, PHY_DM9051, PHY_W5500
+};
 #define IS_SPI_PHY(NUM) (NUM >= 100)
 enum { ETH_INITIALIZED, ETH_STARTED, ETH_STOPPED, ETH_CONNECTED, ETH_DISCONNECTED, ETH_GOT_IP };
 

ports/esp32/modnetwork_globals.h

@@ -47,6 +47,9 @@
 { MP_ROM_QSTR(MP_QSTR_PHY_DP83848), MP_ROM_INT(PHY_DP83848) },
 { MP_ROM_QSTR(MP_QSTR_PHY_KSZ8041), MP_ROM_INT(PHY_KSZ8041) },
 { MP_ROM_QSTR(MP_QSTR_PHY_KSZ8081), MP_ROM_INT(PHY_KSZ8081) },
+#if PHY_LAN867X_ENABLED
+{ MP_ROM_QSTR(MP_QSTR_PHY_LAN8670), MP_ROM_INT(PHY_LAN8670) },
+#endif
 
 #if CONFIG_ETH_SPI_ETHERNET_KSZ8851SNL
 { MP_ROM_QSTR(MP_QSTR_PHY_KSZ8851SNL), MP_ROM_INT(PHY_KSZ8851SNL) },

ports/esp32/network_lan.c

@@ -45,6 +45,10 @@
 #include "modnetwork.h"
 #include "extmod/modnetwork.h"
 
+#if PHY_LAN867X_ENABLED
+#include "esp_eth_phy_lan867x.h"
+#endif
+
 typedef struct _lan_if_obj_t {
     base_if_obj_t base;
     bool initialized;
@@ -156,6 +160,9 @@ static mp_obj_t get_lan(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_ar
         args[ARG_phy_type].u_int != PHY_RTL8201 &&
         args[ARG_phy_type].u_int != PHY_KSZ8041 &&
         args[ARG_phy_type].u_int != PHY_KSZ8081 &&
+        #if PHY_LAN867X_ENABLED
+        args[ARG_phy_type].u_int != PHY_LAN8670 &&
+        #endif
         #if CONFIG_ETH_USE_SPI_ETHERNET
         #if CONFIG_ETH_SPI_ETHERNET_KSZ8851SNL
         args[ARG_phy_type].u_int != PHY_KSZ8851SNL &&
@@ -231,7 +238,12 @@ static mp_obj_t get_lan(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_ar
         case PHY_KSZ8081:
             self->phy = esp_eth_phy_new_ksz80xx(&phy_config);
             break;
+        #if PHY_LAN867X_ENABLED
+        case PHY_LAN8670:
+            self->phy = esp_eth_phy_new_lan867x(&phy_config);
+            break;
         #endif
+        #endif // CONFIG_IDF_TARGET_ESP32
         #if CONFIG_ETH_USE_SPI_ETHERNET
         #if CONFIG_ETH_SPI_ETHERNET_KSZ8851SNL
         case PHY_KSZ8851SNL: {