移植u-boot-2010.03问题 --- 网卡DM9000
1，找到u-boot-2010.03/include/configs/smdk6410.h
//#define CONFIG_NET_MULTI //#define CONFIG_CS8900 /*we have aCS8900on-board*/ //#define CONFIG_CS8900_BASE 0x18800300 //#define CONFIG_CS8900_BUS16 /*follow the Linux driver*/ /**然后添加DM9000网卡的宏定义---ip以及子网掩码等根据自己的需要修改***/ #defineCONFIG_NET_MULTI 1 #defineCONFIG_DM9000_NO_SROM 1 #defineCONFIG_dm9000 #defineCONFIG_DRIVER_DM9000 1 #defineCONFIG_DM9000_BASE 0x18800300 #defineDM9000_IO CONFIG_DM9000_BASE #defineDM9000_DATA (CONFIG_DM9000_BASE+4) #defineCONFIG_DM9000_USE_16BIT #defineCONFIG_ETHADDR 00:40:5c:26:0a:5b #defineCONFIG_NETMASK 255.255.255.0 #defineCONFIG_IPADDR 192.168.1.20 #defineCONFIG_SERVERIP 192.168.1.10 #defineCONFIG_GATEWAYIP 192.168.1.1//#define CONFIG_DM9000_DEBUG
2，打开u-boot-2010.03/net/eth.c，找到int eth_initialize(bd_t *bis)函数：
#if defined(CONFIG_DB64460) || defined(CONFIG_P3Mx) mv6446x_eth_initialize(bis); #endif /** add here */ #if defined(CONFIG_DRIVER_DM9000) dm9000_initialize(bis); #endif /** add over */
3，打开u-boot-2010.03/net/net.c：
第一处：
//# define ARP_TIMEOUT 5000UL /* Milliseconds before trying ARP again */ # define ARP_TIMEOUT 5 /* Milliseconds before trying ARP again */
第二处：
// if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT) { if ((t - NetArpWaitTimerStart) > ARP_TIMEOUT*CONFIG_SYS_HZ) {
第三处：
// NetSetTimeout (10000UL, PingTimeout); NetSetTimeout (10*CONFIG_SYS_HZ, PingTimeout);
4，打开u-boot-2010.03/net/tftp.c，找到void TftpStart (void)函数：
#if 0 /* * Allow the user to choose TFTP blocksize and timeout. * TFTP protocol has a minimal timeout of 1 second. */ if ((ep = getenv("tftpblocksize")) != NULL) TftpBlkSizeOption = simple_strtol(ep, NULL, 10); if ((ep = getenv("tftptimeout")) != NULL) TftpTimeoutMSecs = simple_strtol(ep, NULL, 10); if (TftpTimeoutMSecs < 1000) { printf("TFTP timeout (%ld ms) too low, " "set minimum = 1000 ms\n", TftpTimeoutMSecs); TftpTimeoutMSecs = 1000; } debug("TFTP blocksize = %i, timeout = %ld ms\n", TftpBlkSizeOption, TftpTimeoutMSecs); #endif
完成后重新编译。
5，测试网卡
在开发板上通过命令
printenv 查看网卡信息。
WU_SMDK6410 # printenv bootargs=console=ttySAC,115200 bootcmd=nand read 0x50018000 0x60000 0x1c0000;bootm 0x50018000 bootdelay=10 baudrate=115200 ethaddr=00:40:5c:26:0a:5b ipaddr=192.168.1.123 serverip=192.168.1.127 gatewayip=192.168.1.1 netmask=255.255.255.0 stdin=serial stdout=serial stderr=serial ethact=dm9000
这时，我主机的ip：192.168.1.127，通过ping命令测试是否能连通：
WU_SMDK6410 # ping 192.168.1.127 dm9000 i/o: 0x18800300, id: 0x90000a46 DM9000: running in 16 bit mode MAC: 00:40:5c:26:0a:5b operating at 100M full duplex mode Using dm9000 device host 192.168.1.127 is alive
这里成功连通，但也有时会出现开发板能ping通主机，但是主机却ping不通开发板的奇怪现象，但不影响开发板通过tftp下载主机上的文件，暂时没想通。