2440 上内核3.4.2移植

PS:因wifi项目中无wifi驱动，需新内核。

转自http://blog.chinaunix.net/uid-26318500-id-4397971.html

1.首先在内核中查找已有的默认配置文件

find -name "*defconfig"

[root@localhost arm]# cd arch/arm/

[root@localhost arm]# find -name "*defconfig"

找到一个s3c2410_defconfig。

./configs/at91rm9200_defconfig

./configs/omap1_defconfig

./configs/s3c2410_defconfig

然后就以s3c2410_defconfig为基础编译内核。

修改Makefile文件。

到顶层目录vi Makefile

ARCH ?= $(SUBARCH)

CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)

修改为：

ARCH ?= arm

CROSS_COMPILE ?= arm-linux-

wq退出

make s3c2410_defconfig

HOSTLD scripts/kconfig/conf

#

# configuration written to .config

#

生成了一个.config文件。

vi .config

#

# Automatically generated file; DO NOT EDIT.

# Linux/arm 3.4.2 Kernel Configuration

#

CONFIG_ARM=y

CONFIG_HAVE_PWM=y

CONFIG_SYS_SUPPORTS_APM_EMULATION=y

CONFIG_GENERIC_GPIO=y

CONFIG_ARCH_USES_GETTIMEOFFSET=y

CONFIG_KTIME_SCALAR=y

CONFIG_HAVE_PROC_CPU=y

CONFIG_NO_IOPORT=y

CONFIG_STACKTRACE_SUPPORT=y

CONFIG_HAVE_LATENCYTOP_SUPPORT=y

CONFIG_LOCKDEP_SUPPORT=y

CONFIG_TRACE_IRQFLAGS_SUPPORT=y

CONFIG_HARDIRQS_SW_RESEND=y

CONFIG_GENERIC_IRQ_PROBE=y

CONFIG_RWSEM_GENERIC_SPINLOCK=y

CONFIG_ARCH_HAS_CPUFREQ=y

CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y

CONFIG_GENERIC_HWEIGHT=y

CONFIG_GENERIC_CALIBRATE_DELAY=y

.config 文件里是前一个命令生成的一些配置项。

1.1将arch/arm/mach-s3c24xx/mach-smdk2440.c中的：s3c24xx_init_clocks(16934400);

修改为：

s3c24xx_init_clocks(12000000);

vi arch/arm/mach-s3c24xx/mach-smdk2440.c

2.现在试着make zImage 看看能不能支持开发板。

make zImage

arch/arm/mm/tlb-v4wbi.S: Assembler messages:

arch/arm/mm/tlb-v4wbi.S:64: Error: too many positional arguments

但出现了错误，编译没有通过。上网没有查到解决问题。

那试试换一下交叉编译连，是不是交叉编译连太老了？

[root@localhost linux-3.4.2]# arm-linux-gcc -v

Reading specs from /home/hyx/gcc-3.4.5-glibc-2.3.6/bin/../lib/gcc/arm-linux/3.4.5/specs

Configured with: /work/tools/create_crosstools/crosstool-0.43/build/arm-linux/gcc-3.4.5-glibc-2.3.6/gcc-3.4.5/configure --target=arm-linux --host=i686-host_pc-linux-gnu --prefix=/work/tools/gcc-3.4.5-glibc-2.3.6
--with-float=soft --with-headers=/work/tools/gcc-3.4.5-glibc-2.3.6/arm-linux/include --with-local-prefix=/work/tools/gcc-3.4.5-glibc-2.3.6/arm-linux --disable-nls --enable-threads=posix --enable-symvers=gnu --enable-__cxa_atexit --enable-languages=c,c++ --enable-shared
--enable-c99 --enable-long-long

Thread model: posix

gcc version 3.4.5

这个是原来的交叉编译版本。

在韦东山的资料D:\韦东山Linux视频驱动第2期\韦东Linux视频第1第2期所有源码文档图片芯片手册(1)\韦东Linux视频第1第2期所有源码文档图片芯片手册\毕业班_文档_图片_源码_bin\中找到了arm-linux-gcc-4.3.2.tar.bz2交叉编译工具

并复制到E:\ARM6410实验资料hyx\6410实验源码包hyx后上传到虚拟机。

2.1 解压、编译、安装交叉编译连arm-linux-gcc-4.3.2.tar.bz2

tar -vxf arm-linux-gcc-4.3.2.tar.bz2 但这个是解压到了/home/hyx/usr/local/arm/4.3.2下

现在将其解压到根目录下

tar -xjf arm-linux-gcc-4.3.2.tar.bz2 -C /

ps:查看现在命令的环境变量路径

[root@localhost hyx]# echo $PATH

/usr/lib/qt-3.3/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/home/hyx/gcc-3.4.5-glibc-2.3.6/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

修改环境变量：

方法1：（强烈推荐）

[root@localhost bin]# export PATH=/usr/local/arm/4.3.2/bin:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

[root@localhost bin]# arm-linux-gcc -v

方法2：

vi /etc/profile

# Path manipulation

if [ "$EUID" = "0" ]; then

pathmunge /sbin

pathmunge /usr/sbin

pathmunge /usr/local/sbin

pathmunge /home/hyx/usr/local/arm/4.3.2/bin/

fi

wq 退出

source /etc/profile

arm-linux-gcc -v

显示：

Thread model: posix

gcc version 4.3.2 (Sourcery G++ Lite 2008q3-72)

2.2 ok到此为止，交叉编译连准备好了。开始再次编译新内核3.4.2。

make zImage

Kernel: arch/arm/boot/zImage is ready

/home/hyx/u-boot-1.1.6/tools/mkimage -A arm -O linux -C none -a 0x30008000 -e 0x30008000 -d arch/arm/boot/zImage arch/arm/boot/uImage

nfs 30000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage

OK2440_hyx_2.3#bootm

## Booting image at 30000000 ...

Image Name:

Created: 2014-07-29 9:16:01 UTC

Image Type: ARM Linux Kernel Image (uncompressed)

Data Size: 2399720 Bytes = 2.3 MB

Load Address: 30008000

Entry Point: 30008000

Verifying Checksum ... OK

OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.

undefined instruction

pc : [<30192e0c>] lr : [<3010800c>]

sp : 307f7aa8 ip : 4000001c fp : 00000020

r10: 305ac524 r9 : 41129200 r8 : 30000100

r7 : 0000016a r6 : 307f6a88 r5 : 00000000 r4 : 30108000

r3 : 0000016a r2 : c05bf540 r1 : 4000001c r0 : 0000016a

Flags: nZCv IRQs on FIQs on Mode UK12_32

Resetting CPU ...

出现如上错误信息。

/**********************************************************/

2014/7/30 9:40:13

参考 http://blog.csdn.net/liangkaiming/article/details/5986680 http://blog.csdn.net/subfate/article/details/6228730
修改：

/home/hyx/u-boot-1.1.6/tools/mkimage -A arm -O linux -C none -a 0x30008000 -e 0x30008000 -d arch/arm/boot/zImage arch/arm/boot/uImage

nfs 30000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage

bootm

最终还是不可以正常启动！！！反复查阅源代码还是找不到问题出现的地方！！

猜测是uboot版本太低的缘故，接下来准备移植较新的uboot版本。

uboot移植过程请查阅《2014-arm-u-boot-2012.04.01移植for2440.txt》。

/****************************************************************************/

2014/8/6 16:15:39

u-boot-2012.04.01移植for2440已完成

接下来再看看打印信息：

nfs 30000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage

Bytes transferred = 2399784 (249e28 hex)

ok2440-hyx-uboot-v7.3# bootm

## Booting kernel from Legacy Image at 30000000 ...

Image Name:

Image Type: ARM Linux Kernel Image (uncompressed)

Data Size: 2399720 Bytes = 2.3 MiB

Load Address: 30008000

Entry Point: 30008000

Verifying Checksum ... OK

Loading Kernel Image ... OK

OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.

这里是什么错误信息没有提示，但没有进入内核而是重新启动。

分析uboot引导内核流程：

do_bootm

boot_fn = boot_os[images.os.os];

static boot_os_fn *boot_os[] = {

#ifdef CONFIG_BOOTM_LINUX

[IH_OS_LINUX] = do_bootm_linux,

do_bootm_linux

boot_jump_linux

unsigned long machid = gd->bd->bi_arch_number;

s = getenv("machid");

r2 = gd->bd->bi_boot_params;

kernel_entry(0, machid, r2); // void (*kernel_entry)(int zero, int arch, uint params);

/****************************************************************************/

2014/8/7 10:02:32

再重新试下载镜像

nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage

bootm 32000000

结果还是不行！！

试重新制作uImag镜像：之前的镜像是用u-boot-1.1.6制作的。

cd /home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/

/home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage

还是不行啊~~~~

删除文件，重新重头开始编译。

1.0 解压tar xzvf linux-3.4.2.tar.gz -C ./linux-3.4.2-hyx/

chmod 777 linux-3.4.2/ -R

1.1 修改Makefile

cd linux-3.4.2/

修改：ARCH ?= $(SUBARCH)

CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)

为ARCH ?= arm

CROSS_COMPILE ?= arm-linux-

1.2 选择默认配置 : make s3c2410_defconfig

1.3 修改时钟；

arch\arm\mach-s3c24xx\mach-smdk2440.c

s3c24xx_init_clocks(16934400);

改为

s3c24xx_init_clocks(12000000);

1.4 制作镜像：

make zImage

/home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage

cp arch/arm/boot/uImage arch/arm/boot/uImage-v1.0

1.5 nfs下载到开发板启动：

nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v1.0

bootm 32000000

OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.

??噜?帱帱?噜????????帱?帱?噜?（有乱码）

可能是在uboot的启动参数里没有设置bootargs=console=ttySAC0 root=/dev/mtdblock3 波特率

修改：

set bootargs console=ttySAC0,115200 root=/dev/mtdblock3

save

再次nfs镜像后启动，可以正常启动，但有以下信息：

Scanning device for bad blocks

Creating 8 MTD partitions on "NAND":

0x000000000000-0x000000004000 : "Boot Agent"

mtd: partition "Boot Agent" doesn't end on an erase block -- force read-only

0x000000000000-0x000000200000 : "S3C2410 flash partition 1"

0x000000400000-0x000000800000 : "S3C2410 flash partition 2"

0x000000800000-0x000000a00000 : "S3C2410 flash partition 3"

0x000000a00000-0x000000e00000 : "S3C2410 flash partition 4"

0x000000e00000-0x000001800000 : "S3C2410 flash partition 5"

0x000001800000-0x000003000000 : "S3C2410 flash partition 6"

0x000003000000-0x000008000000 : "S3C2410 flash partition 7"

看来是没有正确分区，搜寻代码：

Boot Agent common-smdk.c (linux-3.4.2\arch\arm\mach-s3c24xx) 4482 2012/6/9

static struct mtd_partition smdk_default_nand_part[] = {

将分区分为

0x000000000000-0x000000040000 : "bootloader"

0x000000040000-0x000000060000 : "params"

0x000000060000-0x000000260000 : "kernel"

0x000000260000-0x000008000000 : "root"

修改为：

/* NAND parititon from 2.4.18-swl5 */

static struct mtd_partition smdk_default_nand_part[] = {

[0] = {

.name = "bootloader",

.size = SZ_256K,

.offset = 0,

},

[1] = {

.name = "params",

.offset = MTDPART_OFS_APPEND,

.size = SZ_128K,

},

[2] = {

.name = "kernel",

.offset = MTDPART_OFS_APPEND,

.size = SZ_2M,

},

[3] = {

.name = "root",

.offset = MTDPART_OFS_APPEND,

.size = MTDPART_SIZ_FULL,

},

};

编译：

make zImage

/home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage

cp arch/arm/boot/uImage arch/arm/boot/uImage-v1.1

nfs下载到开发板启动：

nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v1.1

bootm 32000000

NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 8-bit)

Scanning device for bad blocks

Creating 4 MTD partitions on "NAND":

0x000000000000-0x000000040000 : "bootloader"

0x000000040000-0x000000060000 : "params"

0x000000060000-0x000000260000 : "kernel"

0x000000260000-0x000008000000 : "root"

现在识别了内核的分区了。

2. 修改内核支持yaffs文件

2.1 编译busybosx-1.20.0

2.1.1 下载源码http://www.busybox.net/downloads/到D:\ARM开发镜像文件\linux-3.4.2-hyx镜像文件

2.1.2 解压、配置、编译：

tar xjf busybox-1.20.0.tar.bz2

cd busybox-1.20.0

make menuconfig

修改交叉编译连：

Busybox Settings --->

Build Options --->

Cross Compiler prefix

arm-linux-

2.1.3 创建文件、安装

[root@localhost nfs_root_hyx]# mkdir fs_mini_mdev_new_hyx

make install CONFIG_PREFIX=/home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx

2.1.4 安装库

cd /home/hyx/usr/local/arm/4.3.2/bin/

find -name lib

cd ./arm-none-linux-gnueabi/libc/armv4t/lib

mkdir /home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx/lib

mkdir /home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx/usr/lib -p

cp /home/hyx/usr/local/arm/4.3.2/arm-none-linux-gnueabi/libc/armv4t/lib/*so* /home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx/lib -d

cp /home/hyx/usr/local/arm/4.3.2/arm-none-linux-gnueabi/libc/armv4t/usr/lib/*so* /home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx/usr/lib -d

2.1.5 构建etc目录、构建dev目录、其他空目录

拷贝已有的目录：

cp ../fs_mini_hyx/etc ./ -rf

[root@localhost etc]# cd ..

[root@localhost fs_mini_mdev_new_hyx]# ls

bin etc lib linuxrc sbin usr

[root@localhost fs_mini_mdev_new_hyx]# mkdir dev

[root@localhost fs_mini_mdev_new_hyx]# cd dev/

[root@localhost dev]# ls

[root@localhost dev]# mknod console c 5 1

[root@localhost dev]# mknod null c 1 3

[root@localhost fs_mini_mdev_new_hyx]# mkdir proc mnt tmp sys root

2.1.6 1.移植YAFFS文件系统，www.aleph1.co.uk/yaffs2

文件存在路径：D:\韦东山Linux视频驱动第2期\韦东Linux视频第1第2期所有源码文档图片芯片手册(1)

\韦东Linux视频第1第2期所有源码文档图片芯片手册\毕业班_文档_图片_源码_bin\毕业班第3课移植新内核_文档_图片_补丁_二进制程序

\用git下载的yaffs最新源码 yaffs2.tar.bz2

解压

tar xjvf yaffs2.tar.bz2

2. 打补丁

cd yaffs-dir

./patch-ker.sh c m /home/hyx/linux-3.4.2-hyx/linux-3.4.2

3. 配置内核支持YAFFS

File systems --->

[*] Miscellaneous filesystems --->

<*> yaffs2 file system support

4. 编译

make zImage

出现错误：

fs/yaffs2/yaffs_vfs.c:440: warning: initialization from incompatible pointer type

fs/yaffs2/yaffs_vfs.c:445: warning: initialization from incompatible pointer type

fs/yaffs2/yaffs_vfs.c:447: warning: initialization from incompatible pointer type

fs/yaffs2/yaffs_vfs.c: In function 'yaffs_mtd_put_super':

fs/yaffs2/yaffs_vfs.c:2514: error: 'struct mtd_info' has no member named 'sync'

fs/yaffs2/yaffs_vfs.c:2515: error: 'struct mtd_info' has no member named 'sync'

fs/yaffs2/yaffs_vfs.c: In function 'yaffs_internal_read_super':

........

........

通过建立其source insight工程查询代码：

mtd->sync

struct mtd_info *mtd

void (*_sync) (struct mtd_info *mtd);

mtd_info结构体里是带下划线的_

后面的错误也是这样修改。

fs/yaffs2/yaffs_vfs.c:2967

root = d_make_root(inode); // d_alloc_root(inode);

编译：

make zImage

fs/yaffs2/yaffs_mtdif.c: In function 'nandmtd_erase_block':

fs/yaffs2/yaffs_mtdif.c:42: error: 'struct mtd_info' has no member named 'erase'

make[2]: *** [fs/yaffs2/yaffs_mtdif.o] Error 1

加下划线

编译：

make zImage

fs/yaffs2/yaffs_mtdif1.c: In function 'nandmtd1_write_chunk_tags':

fs/yaffs2/yaffs_mtdif1.c:138: error: 'struct mtd_info' has no member named 'write_oob'

fs/yaffs2/yaffs_mtdif1.c: In function 'nandmtd1_read_chunk_tags':

fs/yaffs2/yaffs_mtdif1.c:200: error: 'struct mtd_info' has no member named 'read_oob'

fs/yaffs2/yaffs_mtdif1.c:223: error: 'struct mtd_info' has no member named 'block_isbad'

fs/yaffs2/yaffs_mtdif1.c: In function 'nandmtd1_mark_block_bad':

fs/yaffs2/yaffs_mtdif1.c:291: error: 'struct mtd_info' has no member named 'block_markbad'

fs/yaffs2/yaffs_mtdif1.c: In function 'nandmtd1_query_block':

fs/yaffs2/yaffs_mtdif1.c:341: error: 'struct mtd_info' has no member named 'block_isbad'

make[2]: *** [fs/yaffs2/yaffs_mtdif1.o] Error 1

加下划线

编译：

make zImage

又出现如上错，同样修改方法。

/home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage

cp arch/arm/boot/uImage arch/arm/boot/uImage-v2.0

5. 制作、烧写yaffs映象

[root@localhost nfs_root_hyx]# mkyaffs2image fs_mini_mdev_new_hyx fs_mini_new.yaffs2

uboot:

nfs 30000000 10.1.30.111:/home/hyx/nfs_root_hyx/fs_mini_new.yaffs2

nand erase.part rootfs

nand write.yaffs 30000000 260000 $filesize

启动：

nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v2.0

bootm 32000000

错误：

yaffs: dev is 32505859 name is "mtdblock3" rw

yaffs: passed flags ""

VFS: Mounted root (yaffs filesystem) on device 31:3.

Freeing init memory: 172K

Kernel panic - not syncing: No init found. Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.

Backtrace:

[] (dump_backtrace+0x0/0x10c) from [] (dump_stack+0x18/0x1c)

发现1.1.6的UBOOT没问题，所以就是我们移植的新UBOOT有BUG：

drivers\mtd\nand\Nand_util.c

if (!need_skip && !(flags & WITH_DROP_FFS)) {

改为

if (!need_skip && !(flags & WITH_DROP_FFS) && !(flags & WITH_YAFFS_OOB)) {

编译

make distclean

make smdk2440-hyx_config

make

cp u-boot.bin u-boot-v7.4.bin

再次烧录yaffs文件

nfs 30000000 10.1.30.111:/home/hyx/nfs_root_hyx/fs_mini_new.yaffs2

nand erase.part rootfs

nand write.yaffs 30000000 260000 $filesize

烧uImage镜像试启动：

nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v2.0

bootm 32000000

错误：

yaffs: dev is 32505859 name is "mtdblock3" rw

yaffs: passed flags ""

VFS: Mounted root (yaffs filesystem) on device 31:3.

Freeing init memory: 172K

Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000004

Backtrace:

[] (dump_backtrace+0x0/0x10c) from [] (dump_stack+0x18/0x1c)

r6:c3819d60 r5:c05a6b14 r4:c05a6b14

[] (dump_stack+0x0/0x1c) from [] (panic+0x7c/0x1d0)

解决办法:重新配置内核支持EABI

make menuconfig

Kernel Features --->

　　 [*] Use the ARM EABI to compile the kernel

　　 [*] Allow old ABI binaries to run with this kernel (EXPERIMENTAL)

编译：

make zImage

/home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage

cp arch/arm/boot/uImage arch/arm/boot/uImage-v2.1

烧uImage镜像试启动：

nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v2.1

bootm 32000000

启动成功！！！

drivers/rtc/hctosys.c: unable to open rtc device (rtc0)

ALSA device list:

No soundcards found.

yaffs: dev is 32505859 name is "mtdblock3" rw

yaffs: passed flags ""

VFS: Mounted root (yaffs filesystem) on device 31:3.

Freeing init memory: 164K

Please press Enter to activate this console.

ok，到现在位置内核的移植已基本完成，至于其裁剪可以后再说。

后续的实验只是将内核下载到内存中直接运行系统。所以其大小超过了2M无所谓。

3.制作补丁和保存当前配置文件

保存配置文件：

[root@localhost linux-3.4.2]# cp .config config-hyx-3.4.2

制作补丁：

[root@localhost linux-3.4.2]# make distclean

[root@localhost hyx]# tar xzf linux-3.4.2.tar.gz

diff -urNwB linux-3.4.2 linux-3.4.2-hyx/linux-3.4.2 > linux-3.4.2-hyx-v1.0.diff

试使用补丁：

[root@localhost linux-3.4.2]# patch -p1 < ../linux-3.4.2-hyx-v1.0.diff

[root@localhost linux-3.4.2]# cp ../config-hyx-3.4.2 .config

make zImage

试烧打补丁后的uImage镜像试启动：

/home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage

nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2/arch/arm/boot/uImage

bootm 32000000

启动成功！！！

4.移植网卡

修改：Mach-smdk2440.c (linux-3.4.2\arch\arm\mach-s3c24xx) 4283 2014/8/7

添加修改：

/*

* The DM9000 has no eeprom, and it's MAC address is set by

* the bootloader before starting the kernel.

*/

/* DM9000AEP 10/100 ethernet controller */

#define MACH_SMDK2440_DM9K_BASE (S3C2410_CS4 + 0x300)

static struct resource smdk2440_dm9k_resource[] = {

[0] = {

.start = MACH_SMDK2440_DM9K_BASE,

.end = MACH_SMDK2440_DM9K_BASE + 3,

.flags = IORESOURCE_MEM

},

[1] = {

.start = MACH_SMDK2440_DM9K_BASE + 4,

.end = MACH_SMDK2440_DM9K_BASE + 7,

.flags = IORESOURCE_MEM

},

[2] = {

.start = IRQ_EINT7,

.end = IRQ_EINT7,

.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,

}

};

static struct dm9000_plat_data smdk2440_dm9k_pdata = {

.flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),

};

static struct platform_device smdk2440_device_eth = {

.name = "dm9000",

.id = -1,

.num_resources = ARRAY_SIZE(smdk2440_dm9k_resource),

.resource = smdk2440_dm9k_resource,

.dev = {

.platform_data = &smdk2440_dm9k_pdata,

},

};

static struct platform_device *smdk2440_devices[] __initdata = {

&s3c_device_ohci,

&s3c_device_lcd,

&s3c_device_wdt,

&s3c_device_i2c0,

&s3c_device_iis,

&smdk2440_dm9k_pdata,

};

添加头文件#include

最后编译：

cp config-hyx .config

make zImage

/home/hyx/u-boot-2012.04.01-hyx/u-boot-2012.04.01/tools/mkimage -A arm -O linux -C none -a 0x30108000 -e 0x30108000 -d arch/arm/boot/zImage arch/arm/boot/uImage

cp arch/arm/boot/uImage arch/arm/boot/uImage-v3.0

nfs 32000000 10.1.30.111:/home/hyx/linux-3.4.2-hyx/linux-3.4.2/arch/arm/boot/uImage-v3.0

bootm 32000000

启动后配置eth0，mount

/ # ifconfig eth0 10.1.30.200

dm9000 dm9000: eth0: link down

/ # dm9000 dm9000: eth0: link up, 100Mbps, full-duplex, lpa 0xCDE1

/ #

/ # mount -t nfs -o nolock,vers=2 10.1.30.111:/home/hyx/nfs_root_hyx/fs_mini_mdev_new_hyx /mnt

成功的挂载上去。

最后制作补丁：

[root@localhost linux-3.4.2]# make distclean

[root@localhost hyx]# tar xzf linux-3.4.2.tar.gz

diff -urNwB linux-3.4.2 linux-3.4.2-hyx/linux-3.4.2 > linux-3.4.2-hyx-v2.0.diff

这次是真的结束了！！！！！

PS:发现在Dm9000.c (linux-3.4.2\drivers\net\ethernet\davicom) 39386 2012/6/9中

#define CARDNAME "dm9000"

#define DRV_VERSION "1.31"

此网卡驱动的版本较低！！

后面移植dm9000最新的网卡驱动。

详细请见《2014-arm-dm9000网卡驱动移植linux3.4.2.txt》

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