十.linux移植

一.修改顶层Makefile

ARCH ?= arm

CROSS_COMPILE ?= arm-linux-

二.把U-BOOT生成的mkimage拷贝到PATH中,这样编译linux的时候,会直接调用mkimage

然后编译:

Make s3c2410_defconfig

Make menuconfig

   Make uImage

下载到板上运行:

Tftp 0x32000000 uImage

Bootm 0x32000000

可以看到会打印一大堆乱码

三.在配置菜单中选项择以下两个开发板:

   System Type -> S3C2410 Machines -> SMDK2410/A9M2410

   System Type -> S3C2440 Machines -> SMDK2440

   File systems --->
     Pseudo Filesystems --->
    <*> Virtual memory file system support (former shm fs)

四.修改arch/arm/mach-s3c2440/mach-smdk2440.c

S3c24xx_init_clocks(12000000);

五.编译,下载运行,看是否能启动,可以看到内核启动信息,最后出现panic信息

六.修改MTD分区

1.修改arch/arm/plat-s3c24xx/command-smdk.c:

static struct mtd_partition smdk_default_nand_part[] = {

    [0] = {

        .name   = "kernel",

        .size   = SZ_2M,

        .offset = 0,

    },

    [1] = {

        .name   = "jffs",

        .offset = MTDPART_OFS_APPEND,

        .size   = SZ_8M,

    },

    [2] = {

        .name   = "yaffs",

        .offset = MTDPART_OFS_APPEND,

        .size   = MTDPART_SIZ_FULL,

    }

};

七.移植YAFFS文件系统

1.解压yaffs的源代码包

2.进入yaffs2文件夹

3../patch-ker.sh c /work/system/linux-2.6.22.6

4.make menuconfig

  File systems-à Miscellaneous filesystems-à <*>YAFFS2 file system support

5.make uImage

6.tftp 0x32000000 uImage

  Nand erase 0 0x200000

  Nand write.jffs2  0x32000000 0 $(filesize)

  ckz24x0 > set bootcmd 'nboot 0x32000000 0 0; bootm 0x32000000'

ckz24x0 > saveenv