Add ethernet PHY clock enable GPIO settings

whc2001 · Jun 8, 2024 · 08b96b3 · 08b96b3
1 parent e789d97
commit 08b96b3
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Showing 2 changed files with 28 additions and 5 deletions.
diff --git a/components/eth_interface/Kconfig.projbuild b/components/eth_interface/Kconfig.projbuild
@@ -246,4 +246,20 @@ menu "Snapclient Ethernet Configuration"
             help
                 Set the second SPI Ethernet module PHY address according your board schematic.
     endif # SNAPCLIENT_USE_SPI_ETHERNET
+
+    config SNAPCLIENT_ETH_CLOCK_ENABLE_GPIO
+        depends on SNAPCLIENT_USE_INTERNAL_ETHERNET || SNAPCLIENT_USE_SPI_ETHERNET
+        int "PHY Clock Enable GPIO"
+        default 5
+        help
+            GPIO number to control ethernet PHY's clock.
+            Some PHY may have constant clock output even during reset, which might cause boot failure when using clock input
+            mode with GPIO0. This GPIO will be configured after boot. 
+
+    config SNAPCLIENT_ETH_CLOCK_ENABLE_ACTIVE_LOW
+        depends on SNAPCLIENT_USE_INTERNAL_ETHERNET || SNAPCLIENT_USE_SPI_ETHERNET
+        bool "PHY Clock Enable active LOW"
+        default false
+        help
+            Output LOW instead of HIGH on eithernet PHY clock enable pin for enable state.
 endmenu
diff --git a/main/main.c b/main/main.c
@@ -2758,8 +2758,9 @@ void app_main(void) {
   esp_log_level_set("wifi", ESP_LOG_WARN);
   esp_log_level_set("wifi_init", ESP_LOG_WARN);
 
-#if CONFIG_SNAPCLIENT_USE_INTERNAL_ETHERNET || \
-    CONFIG_SNAPCLIENT_USE_SPI_ETHERNET
+#if (CONFIG_SNAPCLIENT_USE_INTERNAL_ETHERNET || \
+    CONFIG_SNAPCLIENT_USE_SPI_ETHERNET) && \
+    (CONFIG_SNAPCLIENT_ETH_CLOCK_ENABLE_GPIO > -1)
   // clang-format off
   // nINT/REFCLKO Function Select Configuration Strap
   //  • When nINTSEL is floated or pulled to
@@ -2777,12 +2778,18 @@ void app_main(void) {
   // for MAC unit.
   //
   // clang-format on
-  gpio_config_t cfg = {.pin_bit_mask = BIT64(GPIO_NUM_5),
-                       .mode = GPIO_MODE_DEF_INPUT,
+  ESP_LOGI(TAG, "Setting ethernet clock enable GPIO");
+  gpio_config_t cfg = {.pin_bit_mask = BIT64(CONFIG_SNAPCLIENT_ETH_CLOCK_ENABLE_GPIO),
+                       .mode = GPIO_MODE_DEF_OUTPUT,
                        .pull_up_en = GPIO_PULLUP_DISABLE,
-                       .pull_down_en = GPIO_PULLDOWN_ENABLE,
+                       .pull_down_en = GPIO_PULLDOWN_DISABLE,
                        .intr_type = GPIO_INTR_DISABLE};
   gpio_config(&cfg);
+#if CONFIG_SNAPCLIENT_ETH_CLOCK_ENABLE_ACTIVE_LOW
+  gpio_set_level((gpio_num_t)CONFIG_SNAPCLIENT_ETH_CLOCK_ENABLE_GPIO, 0);
+#else
+  gpio_set_level((gpio_num_t)CONFIG_SNAPCLIENT_ETH_CLOCK_ENABLE_GPIO, 1);
+#endif
 #endif
 
 #if CONFIG_AUDIO_BOARD_CUSTOM && CONFIG_DAC_ADAU1961