bsp/atsam: Add network interface driver

c/src/lib/libbsp/arm/atsam/Makefile.am

@@ -420,6 +420,11 @@ libbsp_a_SOURCES += ../../../libcpu/shared/src/cache_manager.c
 libbsp_a_SOURCES += ../shared/armv7m/include/cache_.h
 libbsp_a_CPPFLAGS += -I$(srcdir)/../shared/armv7m/include
 
+# Network
+if HAS_NETWORKING
+libbsp_a_SOURCES += network/if_atsam.c
+endif
+
 # Includes
 libbsp_a_CPPFLAGS += -I$(srcdir)/../shared/CMSIS/Include
 libbsp_a_CPPFLAGS += -I$(srcdir)/libraries/libboard

c/src/lib/libbsp/arm/atsam/include/bsp.h

@@ -34,6 +34,31 @@ uint32_t atsam_systick_frequency(void);
 
 #define BSP_ARMV7M_SYSTICK_FREQUENCY atsam_systick_frequency()
 
+struct rtems_bsdnet_ifconfig;
+
+int if_atsam_attach(struct rtems_bsdnet_ifconfig *config, int attaching);
+
+#define RTEMS_BSP_NETWORK_DRIVER_NAME "atsam0"
+
+#define RTEMS_BSP_NETWORK_DRIVER_ATTACH if_atsam_attach
+
+/**
+ * @brief Interface driver configuration.
+ */
+typedef struct {
+  /**
+   * @brief Maximum retries for MDIO communication.
+   */
+  uint32_t mdio_retries;
+
+  /**
+   * @brief Address of PHY.
+   *
+   * Use -1 to search for a PHY.
+   */
+  int phy_addr;
+} if_atsam_config;
+
 /** @} */
 
 #ifdef __cplusplus