OK6410开发板Linux-3.3.5驱动移植之DM900网卡驱动移植+NFS文件系统挂载

1    LCD驱动移植

1.1   修改LCD板卡支持源码

gedit arch/arm/mach-s3c64xx/mach-OK6410.c

(1).   修改OK6410_fb_win0结构体：

static struct s3c_fb_pd_win OK6410_fb_win0 = {

       /*this is to ensure we use win0 */

       .win_mode     = {

              .left_margin   = 2,

              .right_margin = 2,

              .upper_margin = 2,

              .lower_margin = 2,

              .hsync_len     = 41,

              .vsync_len     = 11,

              .xres       = 480,

              .yres       = 272,

       },

       .max_bpp = 32,

       .default_bpp   = 16,

};

(2).   填充OK6410_iodesc数组：

static struct map_desc OK6410_iodesc[] = {

       {

        /*LCD support */

       .virtual = (unsigned long)S3C_VA_LCD,

        .pfn= __phys_to_pfn(S3C_PA_FB),

       .length = SZ_16K,

       .type = MT_DEVICE,

       },

};

(3).   注释掉OK6410_machine_init中的

       //gpio_request(S3C64XX_GPN(5),"LCD power");

       //gpio_request(S3C64XX_GPF(13),"LCD power");

1.2   拷贝官方示例内核中的drviers/video/samsung拷贝到drviers/video/目录下

1.3   拷贝官方示例内核中arch/arm/mach-s3c64xx/include/mach目录下的regs-fb.h、regs-lcd.h、gpio-bank-f.h到对应目录下

1.4   修改drviers/video/的Kconfig文件

在文件末尾加入：

source "drivers/video/samsung/Kconfig"

1.5   修改drviers/video/的Makefie文件

最后一行添加：

obj-$(CONFIG_FB_S3C_EXT) += samsung/

1.6   修改arch/arm/plat-samsung/include/plat/map-base.h文件

在末尾添加：

#define S3C_VA_LCD S3C_ADDR(0x01100000)     /* LCD */

1.7   修改include/generated/autoconf.h文件

在末尾添加：

#define CONFIG_FB_S3C_EXT_NUM 4

1.8   修改drivers/video/samsung/s3cfb_fimd4x.c文件

(4).   将s3c6410_pm_do_save(s3c_lcd_save,ARRAY_SIZE(s3c_lcd_save));改为：

s3c_pm_do_save(s3c_lcd_save,ARRAY_SIZE(s3c_lcd_save));

(5).   将s3c6410_pm_do_restore(s3c_lcd_save,ARRAY_SIZE(s3c_lcd_save));改为：

s3c_pm_do_restore(s3c_lcd_save,ARRAY_SIZE(s3c_lcd_save));

1.9      配置内核

make menuconfig

Device Drivers --->

    Graphicssupport --->

        <*>Support for frame buffer devices ---> （里面的都空选）

        [ ]Backlight & LCD device support --->

        <*>S3C Framebuffer Support (eXtended)（修改Kconfig之后才有这个选）

            SelectLCD Type (4.3 inch 480x272 TFT LCD) --->

                 (X) 4.3 inch 480x272 TFT LCD

        <*>Advanced options for S3C Framebuffer

            SelectBPP(Bits Per Pixel) (16 BPP) --->

         (4)Number of Framebuffers

         [ ]Enable Virtual Screen

         [*]Enable Double Buffering

        Consoledisplay driver support --->

            <*>Framebuffer Console support

         [*] Bootup logo --->（显示小企鹅）

             [ ]  Standard black and white Linux logo  

             []   Standard 16-color Linux logo

             [*] Standard 224-color Linux logo

2    DM9000网卡驱动移植

2.1   修改arch/arm/mach-s3c64xx/mach-OK6410.c文件

Linux内核里面已经支持了dm9000的网卡驱动，只需要添加平台设备信息即可。

gedit arch/arm/mach-s3c64xx/mach-OK6410.c

(1).   在开头添加：

#include <linux/dm9000.h>

#define S3C64XX_PA_DM9000    (0x18000000)

#define S3C64XX_SZ_DM9000    SZ_1M

(2).   在static struct platform_device*OK6410_devices[] __initdata前插入

/* Support For DM9000 */

static struct resource OK6410_dm9000_resources[] ={

       [0] ={

              .start=S3C64XX_PA_DM9000,

              .end=S3C64XX_PA_DM9000 + 3,

              .flags=IORESOURCE_MEM,

       },

       [1] ={

              .start=S3C64XX_PA_DM9000 + 4,

              .end=S3C64XX_PA_DM9000 + S3C64XX_SZ_DM9000 - 1,

              .flags=IORESOURCE_MEM,

       },

              [2]= {

              .start=IRQ_EINT(7),

              .end=IRQ_EINT(7),

              .flags=IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,

       },

};

 

static struct dm9000_plat_dataOK6410_dm9000_platdata = {

       .flags=DM9000_PLATF_16BITONLY,

       .dev_addr={ 0x08, 0x90, 0x00, 0xa0, 0x90, 0x90 },

};

 

static struct platform_device OK6410_device_dm9000= {

       .name="dm9000",

       .id=0,

       .num_resources=ARRAY_SIZE(OK6410_dm9000_resources),

       .resource=OK6410_dm9000_resources,

       .dev={

              .platform_data= &OK6410_dm9000_platdata,

       }

};

(3).   然在static struct platform_device*OK6410_devices[] __initdata 中插入：

&OK6410_device_dm9000,

(4).   因与DM9000的物理地址冲突，注释掉&OK6410_smsc911x,

2.2   配置内核

make menuconfig

[*] Networking support  --->

     [*]  Wireless (NEW)  --->

       <*>   cfg80211 - wirelessconfiguration API

        [*]     enable powersave by default (NEW)

        [*]     cfg80211 wireless extensions compatibility(NEW)

        [*]   Wireless extensions sysfs files

       <*>   Common routines forIEEE802.11 drivers 

       <*>   Generic IEEE 802.11Networking Stack (mac80211)

Device Drivers  --->

      [*] Network device support  ---> 

          <*>    Generic Media Independent Interface device support

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

           []   Broadcom devices

           <*>   DM9000 support（即只保留该选项）

            [ ]  Faraday devices

            [ ]  Intel devices

            [ ]  Micrel devices

            [ ]  Microchip devices

            [ ]  National Semi-conductor devices

            [ ]  SEEQ devices

            [ ]  SMC (SMSC)/Western Digital devices

            [ ]  STMicroelectronics devices

       [*]  Wireless LAN (NEW)  ---> 

            <*>  Ralink driver support  --->

                  <*>  Ralink rt2501/rt73 (USB) support

                   [*]  Ralink debug output

2.3   设置网络参数

(1).   使用网线分别连接开发板和宿主机到交换机（OK6410网线直连方式测试不成功）；

(2).   本机IP为192.168.1.7，宿主机（虚拟机）IP为192.168.1.8，桥接方式:

 

 

(3).   启动开发板，按空格进入Uboot菜单，按6进入命令行模式

(4).   输入指令print查看当前参数配置

(5).   设置开发板IP:

set ipaddr 192.168.1.6

(6).   设置服务器IP:

set serverip 192.168.1.8

(7).   设置网关IP:

set gatewayip 192.168.1.1

(8).   设置子网掩码：

set netmask 255.255.255.0

(9).   保持配置到nandflash

save

(10). 测试网络连接

ping 192.168.1.8

3    搭建NFS文件系统

3.1   下载解压busybox-1.2.7

tar jxvf busybox-1.27.2.tar.bz2

cd busybox-1.27.2

3.2   修改顶层Makefile

gedit Makefile

做如下修改：

CROSS_COMPILE ?= arm-linux-

ARCH ?= arm

3.3   配置busybox

Busybox Settings --->

     [*] Build BusyBox as a static binary (noshared libs)

     (arm-linux-) Cross Compiler prefix

Busybox Library Tuning  --->

     [*] Non-POSIX, but safer, copying to specialnodes (NEW)

Linux System Utilities—>

     [ ]blkdiscard

     [ ]nsenter

Coreutils—>

     [ ] sync

3.4   编译

make

将BusyBox安装到指定的root_fs文件夹内

make CONFIG_PREFIX=/opt/OK6410/NFS/root_fs install

注：

编译出现miscutils/nandwrite.c:151:3:error: ‘MTD_FILE_MODE_RAW’ undeclared (first use in thisfunction)错误，按提示修改MTD_FILE_MODE_RAW’为 ‘MTD_MODE_RAW’后重新编译即可。

编译出现util-linux/blkdiscard.c:71:error: 'BLKSECDISCARD' undeclared(first use in this function)错误，取消选中Linux SystemUtilities->blkdiscard

3.5   建立根目录

(1).   进入上面指定目录的上级目录

cd /opt/OK6410/NFS

(2). 在其中创建一个create_rootfs.sh脚本

添加内容如下：

#!/bin/sh

echo "------Create rootfs directons start...--------"

mkdir root_fs

cd root_fs

echo "--------Create root,dev....----------"

mkdir root dev etc boot tmp var sys proc lib mnt home usr

mkdir etc/init.d etc/rc.d etc/sysconfig

mkdir usr/sbin usr/bin usr/lib usr/modules

echo "make node in dev/console dev/null"

mknod -m 600 dev/console c 5 1

mknod -m 600 dev/null c 1 3

mkdir mnt/etc mnt/jffs2 mnt/yaffs mnt/data mnt/temp

mkdir var/lib var/lock var/run var/tmp

chmod 777 tmp

chmod 777 var/tmp

echo "-------make direction done---------"

(3).   运行脚本执行：

sudo ./create_rootfs.sh

(4).   建立etc/inittab 系统init进程配置文件并更改权限

gedit etc/inittab

内容如下：

::sysinit:/etc/init.d/rcS

::askfirst:-/bin/sh #没有这就不行，就不能打开console控制台。

::restart:/sbin/init

::ctrlaltdel:/sbin/reboot

::shutdown:/bin/umount -a -r

::shutdown:/sbin/swapoff –a

chmod +x etc/inittab

(5).   建立etc/init.d/rcS系统启动加载项文件并更改权限

gedit etc/init.d/rcS

内容如下：

#!/bin/sh

PATH=/sbin:/bin:/usr/sbin:/usr/bin

runlevel=S

prevlevel=N

umask 022

export PATH runlevel prevlevel

mount -a

mkdir /dev/pts

mount -t devpts devpts /dev/pts #用于telnet登录时使用

 

echo /sbin/mdev > /proc/sys/kernel/hotplug

mdev -s

mkdir -p /var/lock

/bin/hostname -F /etc/sysconfig/HOSTNAME

chmod +x etc/init.d/rcS

(6).   创建系统挂载文件系统列表文件

gedit etc/fstab

内容如下：

#device mount-point type option dump fsck order

proc /proc proc defaults 0 0

sysfs /sys sysfs defaults 0 0

mdev /dev ramfs defaults 0 0

none /var ramfs defaults 0 0

none /tmp ramfs defaults 0 0

(7).   用户环境配置文件

gedit etc/profile

内容如下：

# Ash profile

# vim: syntax= sh

# No core file by defaults

# ulimit - S - c 0> / dev/ null 2> & 1

 

USER="id -un"

LOGNAME=$USER

PS1="[\u@\h \w]#"  #\w 目录将显示全路径

PATH=$PATH

HOSTNAME= '/bin/hostname'

alias cls="clear"

export USER LOGNAME PS1 PATH 

(8).   用户文件以及密码

把主机的passwd shadow 文件拷贝到/etc下

cp /etc/passwd etc

cp /etc/group etc

cp /etc/shadow etc

(9).   修改主机名

gedit etc/sysconfig/HOSTNAME

然后键入自己的名字，如：OK6410

(10). 拷贝库文件

将交叉编译器下的lib下的库拷贝到lib文件夹下

cp/opt/OK6410/arm-linux-gcc/4.4.3/lib/* lib

3.6   配置内核

[*] Networking support  --->

     Networking options  --->

<*> PF_KEY sockets

[*] TCP/IP networking

[*]   IP: kernel levelautoconfiguration

File systems  --->

[*] Network File Systems  --->

   <*>   NFS clientsupport                                        │ │ 

  ││    [*]     NFS client support for NFS version 3                     │ │ 

  ││    [*]       NFS client support for the NFSv3 ACLprotocol extension│ │ 

  ││    [*]     NFS client support for NFS version 4                     │ │ 

  ││    [*]       NFS client support for NFSv4.1(EXPERIMENTAL)          │ │ 

  ││    [*]  Root file system on NFS

 

 

3.7   修改uboot启动参数bootargs

默认的为：

bootargs=root=/dev/mtdblock2rootfstype=yaffs2 init=/linuxrc console=ttySAC0,115200

修改为：

setenv bootargsnoinitrd root=/dev/nfs ip=192.168.1.6:192.168.1.8:192.168.1.1:255.255.255.0::eth0:offnfsroot=192.168.1.8:/opt/OK6410/NFS/root_fs,nolock,proto=tcp console=ttySAC0,115200