u-boot移植第四弹——2013.10u-boot增加dm9000的支持

本次移植是使u-boot支持网络，并能使用tftp功能，以及支持命令补全功能。

本次移植建立在上次版本上。

首先修改real210.h在最后增加下面的代码

/*
 * Ethernet Contoller driver 网络配置
 */

#define CONFIG_DM9000    
#define CONFIG_DRIVER_DM9000    1
#define CONFIG_DM9000_BASE      (0x88000300)
#define CONFIG_DM9000_USE_16BIT
#define DM9000_IO               CONFIG_DM9000_BASE
#define DM9000_DATA             (CONFIG_DM9000_BASE+0x4) 
#define DM9000_16BIT_DATA

#define CONFIG_CMD_PING

#define CONFIG_BOOTARGS    	"console=ttySAC2,115200 noinitrd root=/dev/mtdblock2 init=/linuxrc" 
#define CONFIG_ETHADDR		00:22:12:34:56:90
#define CONFIG_NETMASK          255.255.255.0
#define CONFIG_IPADDR		192.168.1.20
#define CONFIG_SERVERIP		192.168.1.22
#define CONFIG_GATEWAYIP	192.168.1.1


/*auto complete command*/
#define CONFIG_CMDLINE_EDITING
#define CONFIG_AUTO_COMPLETE    /*实现命令补全功能*/
#define CONFIG_

具体的地址为什么是这个地址，请参考s5pv210的用户手册。

然后修改板级文件real210.c，改成如下：

/*
 *  Copyright (C) 2008-2009 Samsung Electronics
 *  Minkyu Kang <[email protected]>
 *  Kyungmin Park <[email protected]>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <asm/io.h>
#include <asm/arch/sromc.h>
#include <asm/arch/gpio.h>
#include <netdev.h>
#include <s5pc110.h>

#define DM9000_Tacs	(0x0)	// 0clk		address set-up
#define DM9000_Tcos	(0x4)	// 4clk		chip selection set-up
#define DM9000_Tacc	(0xE)	// 14clk	access cycle
#define DM9000_Tcoh	(0x1)	// 1clk		chip selection hold
#define DM9000_Tah	(0x4)	// 4clk		address holding time
#define DM9000_Tacp	(0x6)	// 6clk		page mode access cycle
#define DM9000_PMC	(0x0)	// normal(1data)page mode configuration


#define CS8900_Tacs	(0x0)	// 0clk		address set-up
#define CS8900_Tcos	(0x3)	// 4clk		chip selection set-up
#define CS8900_Tacc	(0x7)	// 14clk	access cycle
#define CS8900_Tcoh	(0x1)	// 1clk		chip selection hold
#define CS8900_Tah	(0x3)	// 4clk		address holding time
#define CS8900_Tacp	(0x6)	// 6clk		page mode access cycle
#define CS8900_PMC	(0x0)	// normal(1data)page mode configuration

DECLARE_GLOBAL_DATA_PTR;
static void dm9000_pre_init(void)
{
	unsigned int tmp;

#if defined(DM9000_16BIT_DATA)
	SROM_BW_REG &= ~(0xf << 4);
	SROM_BW_REG |= (0<<7) | (0<<6) | (1<<5) | (1<<4);
#else	
	SROM_BW_REG &= ~(0xf << 20);
	SROM_BW_REG |= (0<<19) | (0<<18) | (0<<16);
#endif
#ifdef CONFIG_SMC911X
	SROM_BC1_REG = ((CS8900_Tacs<<28)+(CS8900_Tcos<<24)+(CS8900_Tacc<<16)+(CS8900_Tcoh<<12)+(CS8900_Tah<<8)+(CS8900_Tacp<<4)+(CS8900_PMC));
#endif
#ifdef CONFIG_DRIVER_DM9000
	SROM_BC1_REG = ((DM9000_Tacs<<28)|(DM9000_Tcos<<24)|(DM9000_Tacc<<16)|(DM9000_Tcoh<<12)|(DM9000_Tah<<8)|(DM9000_Tacp<<4)|(DM9000_PMC));
#endif	
	tmp = MP01CON_REG;
	tmp &=~(0xf<<4);
	tmp |=(2<<4);
	MP01CON_REG = tmp;
}
int board_init(void)
{
#ifdef CONFIG_SMC911X
	smc9115_pre_init();
#endif
#ifdef CONFIG_DRIVER_DM9000
	dm9000_pre_init();
#endif
	gd->bd->bi_arch_number = MACH_TYPE_SMDKC100;
	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;

	return 0;
}

int dram_init(void)
{
	gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE)*2;
	/*long unsigned int size1,size2;
	size1 = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE);
	size2 = get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
	gd->ram_size = size1 + size2;*/
	return 0;
}

void dram_init_banksize(void)
{
	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;

	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
	gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
}

#ifdef CONFIG_DISPLAY_BOARDINFO
int checkboard(void)
{
	printf("Board:\treal210\n");
	return 0;
}
#endif

int board_eth_init(bd_t *bis)
{
	int rc = 0;
#ifdef CONFIG_SMC911X
	rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
#endif
#ifdef CONFIG_DM9000
	rc = dm9000_initialize(bis);
#endif
	return rc;
}

与之间具体的不同请自行对比。

主要就是这些了，make一下，试试。

成功的结果如下所示：