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五、             DM9000在Uboot2010.03上的移植

1）首先進(jìn)入include/configs/修改smdk6410.h文件，屏蔽CS8900的相關(guān)宏定義同時添加DM9000AE的相關(guān)宏

#cd include/configs///

#gedit smdk6410.h //

smdk6410.h修改內(nèi)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 //開發(fā)板上的ip地址

#define CONFIG_SERVERIP        192.168.174.1//虛擬機(jī)上的ip地址

#define CONFIG_GATEWAYIP   192.168.174.6

#define CONFIG_DM9000_DEBUG//一定要加上否則會出現(xiàn)沒有設(shè)置ipaddr的現(xiàn)象

2）修改net/eth.c,添加DM9000AE的初始化函數(shù)（紅色部分為修改的地方）：

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);

重新編譯uboot，并下載uboot到nand flash中，重新啟動開發(fā)板,觀察打印信息如下,可以發(fā)現(xiàn)uboot已經(jīng)能識別DM9000芯片：

 

使用ping指令進(jìn)行測試如下：

 

 

至此，uboot已經(jīng)能支持dm9000的網(wǎng)卡，可以使用tftp協(xié)議下載程序并在ram中運(yùn)行了。