mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-17 02:08:38 +00:00
161 lines
4 KiB
C
161 lines
4 KiB
C
/******************************************************************************
|
|
*
|
|
* 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 <config.h>
|
|
#include <common.h>
|
|
#include <net.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 when env is nowhere*/
|
|
#ifdef CFG_ENV_IS_NOWHERE
|
|
static u8 EMACAddr[ENET_ADDR_LENGTH] = { 0x00, 0x0a, 0x35, 0x00, 0x22, 0x01 };
|
|
#endif
|
|
|
|
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);
|
|
|
|
#ifdef CFG_ENV_IS_NOWHERE
|
|
memcpy(bis->bi_enetaddr, EMACAddr, 6);
|
|
#endif
|
|
|
|
Result = XEmac_SetMacAddress(&Emac, bis->bi_enetaddr);
|
|
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) {
|
|
#ifndef CONFIG_EMACLITE
|
|
NetReceive((uchar *)etherrxbuff, RecvFrameLength);
|
|
#else
|
|
NetReceive(etherrxbuff, RecvFrameLength);
|
|
#endif
|
|
return (1);
|
|
} else {
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
#endif
|