在uboot中已经支持了DM9000
驱动代码在drivers/net/目录下的
dm9000x.c dm9000x.h
修改include/configs/smdkc100.h 文件，注释掉SMC911X的支持，添加对DM9000的支持
//#define CONFIG_SMC911X 1 /* we have a SMC9115 on-board */
//#define CONFIG_SMC911X_16_BIT 1 /* SMC911X_16_BIT Mode */
//#define CONFIG_SMC911X_BASE 0x98800300 /* SMC911X Drive Base */
在下面添加DM9000的支持
#define CONFIG_CMD_PING 1
#define CONFIG_DRIVER_DM9000 1 /*add by yangshuo*/
#define CONFIG_DM9000_BASE 0x88000300 //comment by yangshuo
#define DM9000_IO CONFIG_DM9000_BASE
#define DM9000_DATA (CONFIG_DM9000_BASE + 4)
#define CONFIG_DM9000_USE_16BIT
#define CONFIG_DM9000_NO_SROM 1
#define CONFIG_ETHADDR 11:22:33:44:55:66
#define CONFIG_IPADDR 192.168.1.200
#define CONFIG_SERVERIP 192.168.1.100
#define CONFIG_GATEWAYIP 192.168.1.1
#define CONFIG_NETMASK 255.255.255.0
修改board/samsung/smdkc100/smdkc100.c 文件，添加DM9000的初始化
在board_eth_init(bd_t *bis) 函数中添加
#ifdef CONFIG_DRIVER_DM9000
rc = dm9000_initialize(bis);
#endif
在当前文件board_init(void) 函数中注释掉
smc9115_pre_init();
修改arch/arm/lib/board.c 文件
在
eth_initialize(gd->bd);
后面添加
eth_init(gd->bd);
修改include/net.h 文件
static inline int is_multicast_ether_addr(const u8 *addr)
{
return (0x01 == addr[0]);
}
不然启动打印
dm9000 i/o: 0x88000300, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 00:00:00:00:00:00
修改net/eth.c 文件中eth_halt(void) 函数，屏蔽掉一下两句，不然一使用DM9000就断掉网络连接
// eth_current->halt(eth_current);
// eth_current->state = ETH_STATE_PASSIVE;
编译下载到DDR运行，打印效果
U-Boot 2011.12 (Sep 26 2012 - 19:54:25) for SMDKC100
CPU: S5PC100@666MHz
Board: SMDKC100
DRAM: 256 MiB
WARNING: Caches not enabled
Using default environment
In: serial
Out: serial
Err: serial
Net: dm9000
dm9000 i/o: 0x88000300, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 11:22:33:44:55:66
operating at 100M full duplex mode
设置一下ipaddr , 不然ping、tftp都无法使用，打印出
SMDKC100 # ping 192.168.4.120
dm9000 i/o: 0x88000300, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 11:22:33:44:55:66
operating at 100M full duplex mode
Using dm9000 device
ping failed; host 192.168.4.120 is not alive
//上面是我根据网上资料改的，可是当我改完后编译的时候又出现下面的问题include/configs/smdkv210.h:error:"+" may not appear in macro parameter list