Merge pull request #5609 from 0xc0170/fix_lpc546xx_enet

 LPC546XX: Add ENET support

Author: 0xc0170

features/FEATURE_LWIP/lwip-interface/lwip-eth/arch/TARGET_NXP/TARGET_LPC546XX/harware_init_LPC546XX.c

@@ -0,0 +1,37 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2017 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef LPC546XX_EMAC_CONFIG_H__
+#define LPC546XX_EMAC_CONFIG_H__
+
+#include "fsl_enet.h"
+
+#define ENET_RX_RING_LEN              (16)
+#define ENET_TX_RING_LEN              (8)
+
+#define ENET_ETH_MAX_FLEN             (ENET_FRAME_MAX_FRAMELEN)
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+int phy_link_status(void);
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif // #define LPC546XX_EMAC_CONFIG_H__
+

features/FEATURE_LWIP/lwip-interface/lwip-eth/arch/TARGET_NXP/TARGET_LPC546XX/lpc546xx_emac.c

@@ -0,0 +1,29 @@
+/* Copyright (C) 2012 mbed.org, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute,
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef LWIPOPTS_CONF_H
+#define LWIPOPTS_CONF_H
+
+#include "lpc546xx_emac_config.h"
+
+#define LWIP_TRANSPORT_ETHERNET       1
+#define ETH_PAD_SIZE                  0
+
+#define MEM_SIZE                      (ENET_RX_RING_LEN * (ENET_ETH_MAX_FLEN + ENET_BUFF_ALIGNMENT) + ENET_TX_RING_LEN * ENET_ETH_MAX_FLEN)
+
+#endif