* Patch by Peter Ryser, 20 Feb 2004:
Add support for the Xilinx ML300 platform
* Patch by Stephan Linz, 17 Feb 2004:
Fix watchdog support for NIOS
* Patch by Josh Fryman, 16 Feb 2004:
Fix byte-swapping for cfi_flash.c for different bus widths
* Patch by Jon Diekema, 14 Jeb 2004:
Remove duplicate "FPGA Support" notes from the README file
diff --git a/board/xilinx/xilinx_enet/emac_adapter.c b/board/xilinx/xilinx_enet/emac_adapter.c
new file mode 100644
index 0000000..a3c37ba
--- /dev/null
+++ b/board/xilinx/xilinx_enet/emac_adapter.c
@@ -0,0 +1,153 @@
+/******************************************************************************
+*
+* Author: Xilinx, Inc.
+*
+*
+* This program is free software; you can redistribute it and/or modify it
+* under the terms of the GNU General Public License as published by the
+* Free Software Foundation; either version 2 of the License, or (at your
+* option) any later version.
+*
+*
+* XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
+* COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
+* ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
+* XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
+* FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
+* ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
+* XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
+* THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
+* WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
+* CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
+* FITNESS FOR A PARTICULAR PURPOSE.
+*
+*
+* Xilinx hardware products are not intended for use in life support
+* appliances, devices, or systems. Use in such applications is
+* expressly prohibited.
+*
+*
+* (c) Copyright 2002-2004 Xilinx Inc.
+* All rights reserved.
+*
+*
+* You should have received a copy of the GNU General Public License along
+* with this program; if not, write to the Free Software Foundation, Inc.,
+* 675 Mass Ave, Cambridge, MA 02139, USA.
+*
+******************************************************************************/
+
+#include <common.h>
+#include <net.h>
+#include <configs/ml300.h>
+#include "xparameters.h"
+#include "xemac.h"
+
+#if defined(XPAR_EMAC_0_DEVICE_ID)
+/*
+ * ENET_MAX_MTU and ENET_MAX_MTU_ALIGNED are set from
+ * PKTSIZE and PKTSIZE_ALIGN (include/net.h)
+ */
+
+#define ENET_MAX_MTU PKTSIZE
+#define ENET_MAX_MTU_ALIGNED PKTSIZE_ALIGN
+#define ENET_ADDR_LENGTH 6
+
+static XEmac Emac;
+static char etherrxbuff[PKTSIZE_ALIGN]; /* Receive buffer */
+
+/* hardcoded MAC address for the Xilinx EMAC Core */
+static u8 EMACAddr[ENET_ADDR_LENGTH] = { 0x00, 0x0a, 0x35, 0x00, 0x22, 0x01 };
+
+static int initialized = 0;
+
+void
+eth_halt(void)
+{
+ if (initialized)
+ (void) XEmac_Stop(&Emac);
+}
+
+int
+eth_init(bd_t * bis)
+{
+ u32 Options;
+ XStatus Result;
+
+#ifdef DEBUG
+ printf("EMAC Initialization Started\n\r");
+#endif
+
+ Result = XEmac_Initialize(&Emac, XPAR_EMAC_0_DEVICE_ID);
+ if (Result != XST_SUCCESS) {
+ return 0;
+ }
+
+ /* make sure the Emac is stopped before it is started */
+ (void) XEmac_Stop(&Emac);
+
+ memcpy(bis->bi_enetaddr, EMACAddr, 6);
+ Result = XEmac_SetMacAddress(&Emac, EMACAddr);
+ if (Result != XST_SUCCESS) {
+ return 0;
+ }
+
+ Options =
+ (XEM_POLLED_OPTION | XEM_UNICAST_OPTION | XEM_BROADCAST_OPTION |
+ XEM_FDUPLEX_OPTION | XEM_INSERT_FCS_OPTION |
+ XEM_INSERT_PAD_OPTION);
+ Result = XEmac_SetOptions(&Emac, Options);
+ if (Result != XST_SUCCESS) {
+ return 0;
+ }
+
+ Result = XEmac_Start(&Emac);
+ if (Result != XST_SUCCESS) {
+ return 0;
+ }
+#ifdef DEBUG
+ printf("EMAC Initialization complete\n\r");
+#endif
+
+ initialized = 1;
+
+ return (0);
+}
+
+/*-----------------------------------------------------------------------------+
++-----------------------------------------------------------------------------*/
+int
+eth_send(volatile void *ptr, int len)
+{
+ XStatus Result;
+
+ if (len > ENET_MAX_MTU)
+ len = ENET_MAX_MTU;
+
+ Result = XEmac_PollSend(&Emac, (u8 *) ptr, len);
+ if (Result == XST_SUCCESS) {
+ return (1);
+ } else {
+ printf("Error while sending frame\n\r");
+ return (0);
+ }
+
+}
+
+int
+eth_rx(void)
+{
+ u32 RecvFrameLength;
+ XStatus Result;
+
+ RecvFrameLength = PKTSIZE;
+ Result = XEmac_PollRecv(&Emac, (u8 *) etherrxbuff, &RecvFrameLength);
+ if (Result == XST_SUCCESS) {
+ NetReceive(etherrxbuff, RecvFrameLength);
+ return (1);
+ } else {
+ return (0);
+ }
+}
+
+#endif