1 /******************************************************************************
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
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14 * ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
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25 * Xilinx hardware products are not intended for use in life support
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30 * (c) Copyright 2002-2004 Xilinx Inc.
31 * All rights reserved.
34 * You should have received a copy of the GNU General Public License along
35 * with this program; if not, write to the Free Software Foundation, Inc.,
36 * 675 Mass Ave, Cambridge, MA 02139, USA.
38 ******************************************************************************/
45 #if defined(XPAR_EMAC_0_DEVICE_ID)
47 * ENET_MAX_MTU and ENET_MAX_MTU_ALIGNED are set from
48 * PKTSIZE and PKTSIZE_ALIGN (include/net.h)
51 #define ENET_MAX_MTU PKTSIZE
52 #define ENET_MAX_MTU_ALIGNED PKTSIZE_ALIGN
53 #define ENET_ADDR_LENGTH 6
56 static char etherrxbuff[PKTSIZE_ALIGN]; /* Receive buffer */
58 /* hardcoded MAC address for the Xilinx EMAC Core when env is nowhere*/
59 #ifdef CONFIG_ENV_IS_NOWHERE
60 static u8 EMACAddr[ENET_ADDR_LENGTH] = { 0x00, 0x0a, 0x35, 0x00, 0x22, 0x01 };
63 static int initialized = 0;
69 (void) XEmac_Stop(&Emac);
79 printf("EMAC Initialization Started\n\r");
82 Result = XEmac_Initialize(&Emac, XPAR_EMAC_0_DEVICE_ID);
83 if (Result != XST_SUCCESS) {
87 /* make sure the Emac is stopped before it is started */
88 (void) XEmac_Stop(&Emac);
90 #ifdef CONFIG_ENV_IS_NOWHERE
91 memcpy(bis->bi_enetaddr, EMACAddr, 6);
94 Result = XEmac_SetMacAddress(&Emac, bis->bi_enetaddr);
95 if (Result != XST_SUCCESS) {
100 (XEM_POLLED_OPTION | XEM_UNICAST_OPTION | XEM_BROADCAST_OPTION |
101 XEM_FDUPLEX_OPTION | XEM_INSERT_FCS_OPTION |
102 XEM_INSERT_PAD_OPTION);
103 Result = XEmac_SetOptions(&Emac, Options);
104 if (Result != XST_SUCCESS) {
108 Result = XEmac_Start(&Emac);
109 if (Result != XST_SUCCESS) {
113 printf("EMAC Initialization complete\n\r");
121 /*-----------------------------------------------------------------------------+
122 +-----------------------------------------------------------------------------*/
124 eth_send(volatile void *ptr, int len)
128 if (len > ENET_MAX_MTU)
131 Result = XEmac_PollSend(&Emac, (u8 *) ptr, len);
132 if (Result == XST_SUCCESS) {
135 printf("Error while sending frame\n\r");
147 RecvFrameLength = PKTSIZE;
148 Result = XEmac_PollRecv(&Emac, (u8 *) etherrxbuff, &RecvFrameLength);
149 if (Result == XST_SUCCESS) {
150 #ifndef CONFIG_EMACLITE
151 NetReceive((uchar *)etherrxbuff, RecvFrameLength);
153 NetReceive(etherrxbuff, RecvFrameLength);