linux-3.4.6移植

1、进入linux-3.4.6目录，vi Makefile 修改195、196行如下内容

ARCH ?=arm
CROSS_COMPILE ?=arm-linux-

2、打开arch/arm/mach-s3c24xx/mach-mini2440.c,修改参数分区

static struct mtd_partition mini2440_default_nand_part[] __initdata = {
        [0] = {
                .name   = "u-boot",
                .size   = SZ_512K,
                .offset = 0,
        },
        [1] = {
                .name   = "u-boot-env",
                .size   = SZ_512K,
                .offset = SZ_512K,
        },
        [2] = {
                .name   = "kernel",
                /* 5 megabytes, for a kernel with no modules
                 * or a uImage with a ramdisk attached */
                .size   =SZ_4M,
                .offset =SZ_1M,
        },
        [3] = {
                .name   = "root",
                .offset = SZ_1M*5,
                .size   = SZ_1M*100,
        },
};

3、vi drivers/mtd/nand/s3c2410.c 修改846行

chip->ecc.mode = NAND_ECC_NONE;

4 、支持yaffs2

从官网获得yaffs2源码

git clone git://www.aleph1.co.uk/yaffs2

给内核打补丁

./patch-ker.sh c m /home/real_linux/linux-3.4.6

5 配置内核

make mini2440_defconfig

make menuconfig

Kernel Features --->

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

[*] Provide old way to pass kernel parameters

Device Drivers --->

　　<*> Memory Technology Device (MTD) support --->

　　　　 < > FTL (Flash Translation Layer) support

　　　　 < > NFTL (NAND Flash Translation Layer) support

　　　　 < > INFTL (Inverse NAND Flash Translation Layer) support

去掉这三项，会消除相应的警告

File systems --->

　　 [*] Miscellaneous filesystems --->

　　　　　<*> yaffs2 file system support

Kernel hacking --->

　　 [*] Kernel low-level debugging functions (read help!)

　　　　　（这里没选上，starting kernel 之后无输出）

make uImage

然后烧写到nanflash。接上面uboot移植，就可以引导linux内核启动

linux-3.4.6移植

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