linux 2.6.24ÔÚS3C2410ÉϵÄÒÆÖ²(1)(»ùÓÚGEC2410)
1.ÏÂÔØlinux kernelÔ´´úÂë
µ½http://www.kernel.org/ÏÂÔØlinuxÄÚºËÔ´´úÂë,ÕâÀïÎÒÃÇʹÓÃ2.6.24.4µÄÄÚºË.
½âѹlinux-2.6.24.4.tar.bz2
[matt@localhost GEC2410]$ tar -xvjf linux-2.6.24.4.tar.bz2
[matt@localhost GEC2410]$ cd linux-2.6.24.4
2.ÐÞ¸ÄMakefile,ÉèÖý»²æ±àÒëÆ÷
ARCH ?= arm
CROSS_COMPILE ?= /home/GEC2410/toolchain/arm-softfloat-linux-gnu/bin/arm-softfloat-linux-gnu-
3.ÉèÖÃNand·ÖÇø
ÐÞ¸Äarch/arm/plat-s3c24xx/common-smdk.cÖÐ108ÐеÄsmdk_default_nand_part[]ÈçÏÂ:
[matt@localhost linux-2.6.24.4]$ vim arch/arm/plat-s3c24xx/common-smdk.c
static struct mtd_partition smdk_default_nand_part[] = {
#if 0
[0] = {
.name = "Boot Agent",
.size = SZ_16K,
.offset = 0,
},
[1] = {
.name = "S3C2410 flash partition 1",
.offset = 0,
.size = SZ_2M,
},
[2] = {
.name = "S3C2410 flash partition 2",
.offset = SZ_4M,
.size = SZ_4M,
},
[3] = {
.name = "S3C2410 flash partition 3",
.offset = SZ_8M,
.size = SZ_2M,
},
[4] = {
.name = "S3C2410 flash partition 4",
.offset = SZ_1M * 10,
.size = SZ_4M,
},
[5] = {
.name = "S3C2410 flash partition 5",
.offset = SZ_1M * 14,
.size = SZ_1M * 10,
},
[6] = {
.name = "S3C2410 flash partition 6",
.offset = SZ_1M * 24,
.size = SZ_1M * 24,
},
[7] = {
.name = "S3C2410 flash partition 7",
.offset = SZ_1M * 48,
.size = SZ_16M,
}
#endif
[0] = {
.name = "U-Boot",
.size = SZ_1M,
.offset = 0,
},
[1] = {
.name = "Linux Kernel",
.offset = SZ_1M,
.size = SZ_1M*3,
},
[2] = {
.name = "Root",
.offset = SZ_4M,
.size = SZ_4M*10,
},
[3] = {
.name = "User",
.offset = SZ_4M*11,
.size = SZ_4M*5,
}
};
4 ÅäÖÃÄÚºË
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ΪÁËÎÒÃǵÄÄÚºËÖ§³ÖdevfsÒÔ¼°ÔÚÆô¶¯Ê±²¢ÔÚ/sbin/initÔËÐÐ֮ǰÄÜ×Ô¶¯¹ÒÔØ/devΪdevfsÎļþϵͳ£¬ÐÞ¸Äfs/KconfigÎļþ
vi fs/Kconfig
ÕÒµ½menu "Pseudo filesystems"
Ìí¼ÓÈçÏÂÓï¾ä£º
config DEVFS_FS
bool "/dev file system support (OBSOLETE)"
default y
config DEVFS_MOUNT
bool "Au
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touch:´´½¨ÐÂÎļþ
rm -rf:ɾ³ýÎļþ
set gid ¶ÔĿ¼µÄ×÷ÓÃ
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#include <linux/module.h>
#if CONFIG_MODVERSIONS==1
#define MODVERSIONS
#include <linux/modversions.h>
#endif
int init_module()
{
printk("Hello, I'm kernel\n");
return 0;
}
void cleanup_module()
{
printk("I'm kernel, bye\n");
} ......
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