Merge pull request #4671 from mysterywolf/stm32f407_1

[bsp-stm32f407-explorer] 完善F407探索者网络部分board配置

bsp/stm32/stm32f407-atk-explorer/board/Kconfig

@@ -46,15 +46,24 @@ menu "Onboard Peripheral Drivers"
         bool "Enable I2C EEPROM (i2c1)"
         select BSP_USING_I2C1
         default n
-
-    config PHY_USING_LAN8720A
-        bool
     
     config BSP_USING_ETH
         bool "Enable Ethernet"
         default n
         select RT_USING_LWIP
-        select PHY_USING_LAN8720A
+        select RT_LWIP_USING_HW_CHECKSUM
+
+    config BSP_USING_ETH_SAL
+        bool "Enable Ethernet with SAL"
+        depends on BSP_USING_ETH
+        default y
+        select RT_USING_SAL
+        select SAL_USING_POSIX
+
+    config PHY_USING_LAN8720A
+        bool
+        depends on BSP_USING_ETH
+        default y
 
     config BSP_USING_MPU6050
         bool "Enable MPU6050 (i2c1)"
@@ -68,12 +77,12 @@ menu "Onboard Peripheral Drivers"
         select RT_USING_DFS
         select RT_USING_DFS_ELMFAT
         default n
-    if BSP_USING_SDCARD
+
     config SDIO_MAX_FREQ
         int "sdio max freq"
         range 0 24000000
+        depends on BSP_USING_SDCARD
         default 1000000
-    endif
 
 endmenu