添加需要的头文件：

1 // vim arch/arm/mach-s5pc100/mach-smdkc100.c
        2
        3 #if defined (CONFIG_DM9000)
        4 #include <linux/dm9000.h>
        5 #include <linux/irq.h>
        6 #endif

平台设备的添加：

01 /* DM9000 Support */
        02
        03 #if defined(CONFIG_DM9000)
        04 static struct resource dm9000_resources[] = {
        05     [0] = {
        06         .start     = 0x88000000,
        07         .end     = 0x88000000 + 0x3,
        08         .flags     = IORESOURCE_MEM,
        09     },
        10     [1] = {
        11         .start     = 0x88000000 + 0x4,
        12         .end     = 0x88000000 + 0x4 +0x3,
        13         .flags     = IORESOURCE_MEM,
        14     },
        15     [2] = {
        16         .start     = IRQ_EINT(10),
        17         .end     = IRQ_EINT(10),
        18         .flags     = IORESOURCE_IRQ | IRQ_TYPE_LEVEL_HIGH,
        19     },
        20 };
        21
        22 static struct dm9000_plat_data s5pc100_dm9000_platdata = {
        23     .flags     = DM9000_PLATF_16BITONLY,
        24     .dev_addr[0] = 0x00,
        25     .dev_addr[1] = 0x00,
        26     .dev_addr[2] = 0x3e,
        27     .dev_addr[3] = 0x26,
        28     .dev_addr[4] = 0x0a,
        29     .dev_addr[5] = 0x00,
        30 };
        31
        32 static struct platform_device s5pc100_device_dm9000 = {
        33     .name = "dm9000",
        34     .id = -1,
        35     .num_resources = ARRAY_SIZE(dm9000_resources),
        36     .resource = dm9000_resources,
        37     .dev = {
        38                 .platform_data = & s5pc100_dm9000_platdata,
        39     }
        40 };
        41 #endif

平台设备列表的添加：

在smdkc100_devices[]结构体数组中添加如下内容：

1 // vim arch/arm/mach-s5pc100/mach-smdkc100.c
        2
        3 #ifdefined(CONFIG_DM9000)
        4 &s5pc100_device_dm9000,
        5 #endif

配置内核

$ make menuconfig

    网络配置：

[*] Networking support (NEW) --->
             Networking options --->
                     <*> Packet socket
                     <*>Unix domain sockets
                     [*] TCP/IP networking
                             [*] IP: multicasting
                             [*] IP: kernel level autoconfiguration
                             [*] IP: BOOTP support
                             <> The ipv6 protocol

    网卡驱动配置：

Device Drivers --->
              [*] Network device support --->
                    [*] Ethernet driver support --->
                        <*> DM9000 support

    网络文件系统的配置：

File systems --->
            [*] Network File Systems --->
    &nbsnbsp;             <*> NFS client suppor
                  [*] NFS client support for NFS version 3
                  [*] NFS client support for the NFSv3 ACL protocol extension
                  [*] Root file system on NFS

编译内核

编译内核，并拷贝到tftpboot目录下。

$ make zImage
        $ cp arch/arm/boot/zImage /tftpboot

测试

启动开发板，修改内核启动参数，通过NFS方式挂载根文件系统。