u-boot-2010.03在tq6410上的移植详解（三）

五、 DM9000在Uboot2010.03上的移植

1）首先进入include/configs/修改smdk6410.h文件，屏蔽CS8900的相关宏定义同时添加DM9000AE的相关宏

#cd include/configs///

#gedit smdk6410.h //

smdk6410.h修改内容如下：

#define CONFIG_NET_MULTI 1

//#define CONFIG_CS8900 /* we have a CS8900 on-board */

//#define CONFIG_CS8900_BASE 0x18800300

//#define CONFIG_CS8900_BUS16 /* follow the Linux driver */

#define CONFIG_DRIVER_DM9000 1/* we have a DM9000AE on-board */

#define CONFIG_DM9000_BASE 0x18000300

#define DM9000_IO CONFIG_DM9000_BASE

#define DM9000_DATA (CONFIG_DM9000_BASE + 4)

#define CONFIG_DM9000_USE_16BIT

#define CONFIG_ETHADDR 10:23:45:67:89:ab

#define CONFIG_NETMASK 255.255.255.0

#define CONFIG_IPADDR 192.168.174.2 //开发板上的ip地址

#define CONFIG_SERVERIP 192.168.174.1//虚拟机上的ip地址

#define CONFIG_GATEWAYIP 192.168.174.6

#define CONFIG_DM9000_DEBUG//一定要加上否则会出现没有设置ipaddr的现象

2）修改net/eth.c,添加DM9000AE的初始化函数（红色部分为修改的地方）：

int eth_initialize(bd_t *bis)

{

unsigned char env_enetaddr[6];

int eth_number = 0;

eth_devices = NULL;

eth_current = NULL;

show_boot_progress (64);

#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)

miiphy_init();

#endif

/* Try board-specific initialization first. If it fails or isn't

* present, try the cpu-specific initialization */

if (board_eth_init(bis) < 0)

cpu_eth_init(bis);

#if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)

mv6436x_eth_initialize(bis);

#endif

#if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx)

mv6446x_eth_initialize(bis);

#endif

#if defined(CONFIG_DRIVER_DM9000)

dm9000_initialize(bis);

#endif

if (!eth_devices) {

puts ("No ethernet found./n");

show_boot_progress (-64);

} else {

struct eth_device *dev = eth_devices;

char *ethprime = getenv ("ethprime");

show_boot_progress (65);

do {

if (eth_number)

puts (", ");

printf("%s", dev->name);

if (ethprime && strcmp (dev->name, ethprime) == 0) {

eth_current = dev;

puts (" [PRIME]");

}

eth_getenv_enetaddr_by_index(eth_number, env_enetaddr);

if (memcmp(env_enetaddr, "/0/0/0/0/0/0", 6)) {

if (memcmp(dev->enetaddr, "/0/0/0/0/0/0", 6) &&

memcmp(dev->enetaddr, env_enetaddr, 6))

{

printf ("/nWarning: %s MAC addresses don't match:/n",

dev->name);

printf ("Address in SROM is %pM/n",

dev->enetaddr);

printf ("Address in environment is %pM/n",

env_enetaddr);

}

memcpy(dev->enetaddr, env_enetaddr, 6);

}

eth_number++;

dev = dev->next;

} while(dev != eth_devices);

重新编译uboot，并下载uboot到nand flash中，重新启动开发板,观察打印信息如下,可以发现uboot已经能识别DM9000芯片：

使用ping指令进行测试如下：

至此，uboot已经能支持dm9000的网卡，可以使用tftp协议下载程序并在ram中运行了。