<五> 网卡驱动的移植

1.平台代码修改:

vim arch/arm/mach-s5pv210/mach-smdkv210.c

修改结构体数组 smdkv210_dm9000_resources 为：

static struct resource smdkv210_dm9000_resources[] = {

[0] = {

.start = 0x88000000,

.end = 0x88000000 + 0x3,

.flags = IORESOURCE_MEM,

},

[1] = {

.start = 0x88000000 + 0x4,

.end = 0x88000000 + 0x4 + 0x3,

.flags = IORESOURCE_MEM,

},

[2] = {

.start = IRQ_EINT(10),

.end = IRQ_EINT(10),

.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,

},

};

修改函数 smdkv210_dm9000_init 为：static void __init smdkv210_dm9000_init(void)

{

unsigned int tmp;

gpio_request(S5PV210_MP01(1), "nCS1");

s3c_gpio_cfgpin(S5PV210_MP01(1), S3C_GPIO_SFN(2));

gpio_free(S5PV210_MP01(1));

tmp = (5 << S5P_SROM_BCX__TACC__SHIFT);

__raw_writel(tmp, S5P_SROM_BC1);

tmp = __raw_readl(S5P_SROM_BW);

tmp &= (S5P_SROM_BW__CS_MASK << S5P_SROM_BW__NCS1__SHIFT);

tmp |= (1 << S5P_SROM_BW__NCS1__SHIFT);

__raw_writel(tmp, S5P_SROM_BW);

}

2.配置内核：

make menuconfig

[*] Networking support --->

Networking options --->

<*> Packet socket

<*> Unix domain sockets

[*] TCP/IP networking

[*] IP: kernel level autoconfiguration

Device Drivers --->

[*] Network device support --->

[*] Ethernet driver support (NEW) --->

<*> DM9000 support

File systems --->

[*] Network File Systems (NEW) --->

<*> NFS client support

[*] NFS client support for NFS version 3

[*] NFS client support for the NFSv3 ACL protocol extension

[*] Root file system on NFS

3.编译内核：

make zImage

4.测试：

拷贝内核到/tftpboot 下

$ cp arch/arm/boot/zImage /tftpboot

启动开发板，修改内核启动参数设置网络加载内核，通过 NFS 方式挂载根文件系统实验六 LED 驱动