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https://github.com/brain-hackers/u-boot-brain
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99b0f0fd3f
Change the xilinx device drivers and board code to include config.h instead of xparameters.h directly. config.h always includes the correct xparameters file. This change reduces the posibility of including the wrong file when adding a new xilinx board port Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
158 lines
3.9 KiB
C
158 lines
3.9 KiB
C
/******************************************************************************
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*
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* Author: Xilinx, Inc.
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*
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*
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* XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
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* COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
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* ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
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* XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
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* FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
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* ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
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* XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
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* THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
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* WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
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* CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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*
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* Xilinx hardware products are not intended for use in life support
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* appliances, devices, or systems. Use in such applications is
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* expressly prohibited.
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*
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*
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* (c) Copyright 2002-2004 Xilinx Inc.
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* All rights reserved.
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*
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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******************************************************************************/
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#include <config.h>
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#include <common.h>
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#include <net.h>
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#include "xemac.h"
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#if defined(XPAR_EMAC_0_DEVICE_ID)
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/*
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* ENET_MAX_MTU and ENET_MAX_MTU_ALIGNED are set from
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* PKTSIZE and PKTSIZE_ALIGN (include/net.h)
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*/
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#define ENET_MAX_MTU PKTSIZE
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#define ENET_MAX_MTU_ALIGNED PKTSIZE_ALIGN
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#define ENET_ADDR_LENGTH 6
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static XEmac Emac;
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static char etherrxbuff[PKTSIZE_ALIGN]; /* Receive buffer */
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/* hardcoded MAC address for the Xilinx EMAC Core when env is nowhere*/
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#ifdef CFG_ENV_IS_NOWHERE
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static u8 EMACAddr[ENET_ADDR_LENGTH] = { 0x00, 0x0a, 0x35, 0x00, 0x22, 0x01 };
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#endif
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static int initialized = 0;
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void
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eth_halt(void)
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{
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if (initialized)
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(void) XEmac_Stop(&Emac);
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}
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int
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eth_init(bd_t * bis)
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{
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u32 Options;
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XStatus Result;
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#ifdef DEBUG
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printf("EMAC Initialization Started\n\r");
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#endif
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Result = XEmac_Initialize(&Emac, XPAR_EMAC_0_DEVICE_ID);
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if (Result != XST_SUCCESS) {
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return 0;
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}
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/* make sure the Emac is stopped before it is started */
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(void) XEmac_Stop(&Emac);
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#ifdef CFG_ENV_IS_NOWHERE
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memcpy(bis->bi_enetaddr, EMACAddr, 6);
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#endif
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Result = XEmac_SetMacAddress(&Emac, bis->bi_enetaddr);
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if (Result != XST_SUCCESS) {
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return 0;
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}
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Options =
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(XEM_POLLED_OPTION | XEM_UNICAST_OPTION | XEM_BROADCAST_OPTION |
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XEM_FDUPLEX_OPTION | XEM_INSERT_FCS_OPTION |
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XEM_INSERT_PAD_OPTION);
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Result = XEmac_SetOptions(&Emac, Options);
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if (Result != XST_SUCCESS) {
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return 0;
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}
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Result = XEmac_Start(&Emac);
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if (Result != XST_SUCCESS) {
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return 0;
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}
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#ifdef DEBUG
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printf("EMAC Initialization complete\n\r");
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#endif
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initialized = 1;
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return (0);
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}
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/*-----------------------------------------------------------------------------+
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+-----------------------------------------------------------------------------*/
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int
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eth_send(volatile void *ptr, int len)
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{
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XStatus Result;
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if (len > ENET_MAX_MTU)
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len = ENET_MAX_MTU;
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Result = XEmac_PollSend(&Emac, (u8 *) ptr, len);
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if (Result == XST_SUCCESS) {
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return (1);
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} else {
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printf("Error while sending frame\n\r");
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return (0);
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}
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}
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int
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eth_rx(void)
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{
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u32 RecvFrameLength;
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XStatus Result;
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RecvFrameLength = PKTSIZE;
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Result = XEmac_PollRecv(&Emac, (u8 *) etherrxbuff, &RecvFrameLength);
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if (Result == XST_SUCCESS) {
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NetReceive((uchar *)etherrxbuff, RecvFrameLength);
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return (1);
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} else {
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return (0);
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}
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}
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#endif
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