修改30ms喂狗，解决初始化超时问题

drivers/source/eth/sdrv_eth.c

@@ -22,6 +22,8 @@
 #include "sdrv_eth.h"
 #include "phy/phy.h"
 
+#include <wdt_refresh.h>
+
 /* Eth frame header and crc length. */
 #define ETH_FRAME_HEADER_LEN    (6 + 6 + 2)
 #define ETH_FRAME_OVERHEAD_LEN  (ETH_FRAME_HEADER_LEN + 4)
@@ -171,17 +173,18 @@ static void eth_mac_init(dwc_eth_config_t *cfg, struct eqos_priv *eqos)
     uint32_t skip_len = eqos->desc_size - sizeof(struct eqos_desc);
     uint8_t bus_width = cfg->dma_bus_width ? cfg->dma_bus_width : 64;
     eqos->dsl = skip_len * 8 / bus_width;
-
+        
     //DMA init
     mac_init_dma(cfg->base, eqos);
 
     //MTL init
     mac_init_mtl(cfg->base);
-
+        
     //core init
     phy_speed_t speed = (cfg->phy[0].phy_addr == ~0) ?
                         PHY_SPEED_1000 : cfg->phy[0].speed;
     dwmac_core_init(cfg->base, cfg->mtu, speed, cfg->mac_addr);
+    
     dwmac_mac_rx_queue_mcbc_routing(cfg->base, 0);
 }
 
@@ -282,14 +285,13 @@ static err_t dwc_eth_init(struct net_driver_s *dev)
 #endif
     ASSERT(eqos->rx_dma_buf);
     memset(eqos->rx_dma_buf, 0, EQOS_RX_BUFFER_SIZE);
-#endif
-
+#endif  
     //init phy
     phy_init(&eth_dev->phy_bus);
 
     //init mac
     eth_mac_init(cfg, eqos);
-
+    
     // set up dma tx/rx descriptors
     memset(eqos->descs, 0, eqos->desc_size * EQOS_DESCRIPTORS_NUM);
 
@@ -307,7 +309,7 @@ static err_t dwc_eth_init(struct net_driver_s *dev)
         arch_clean_cache_range((addr_t)rx_desc, sizeof(struct eqos_desc));
         arch_invalidate_cache_range((addr_t)((char *)eqos->rx_dma_buf +
                                     (i * EQOS_MAX_PACKET_SIZE)), EQOS_MAX_PACKET_SIZE);
-    }
+    }    
 
     //enable rx/tx
     mac_start(cfg->base, true);
@@ -773,10 +775,11 @@ int dwc_eth_probe(struct net_driver_s *dev, dwc_eth_config_t *cfg)
     for (int i = 0; cfg->phy[i].phy_addr != ~0; i++) {
         phy_dev_register(&dw_eth_dev->phy_bus, &cfg->phy[i]);
     }
-
+   
     int ret = netdev_register(dev, NET_LL_ETHERNET);
 
     irq_attach(cfg->irq_num, dwc_eth_irq_handler, dev);
+    
     irq_enable(cfg->irq_num);
 
     return ret;