dm9000.c

F:worksip2440a board可启动u-boot-like.tar.gz F:worksip2440a board可启动u-boot-like.tar.gz

/*
 * DM9000 Ethernet
 * writen by chete cheng, mail:[e-mail]
 *
 * This program is loaded into SRAM in bootstrap mode, where it waits
 * for commands on UART1 to read and write memory, jump to code etc.
 * A design goal for this program is to be entirely independent of the
 * target board.  Anything with a CL-PS7111 or EP7211 should be able to run
 * this code in bootstrap mode.  All the board specifics can be handled on
 * the host.
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * 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 <command.h>
#include <net.h>

#ifdef CONFIG_DRIVER_DM9000

#if (CONFIG_COMMANDS & CFG_CMD_NET)
#define DM9000_VID_L	0x28
#define DM9000_VID_H	0x29
#define DM9000_PID_L	0x2A
#define DM9000_PID_H	0x2B
#define DM9000_ID	0x90000A46
#define DM9000_INT_MII	0x00
#define DM9000_PPTR   *(volatile u16 *)(DM9000_BASE)
#define DM9000_PDATA  *(volatile u16 *)(DM9000_BASE + 4)
static unsigned char ior(int reg);



/*  edit by davicom */
static void eth_mem_test (void)
{
	u8 i;
	u16 j , k ;
	
	iow(0x00, 3);
	udelay(50);	/* delay 100us */
	iow(0x00, 2);
	
	iow(0xff , 0x00);							/* 闽超┮Τい耞