原创 移植2.6.25到友善2440开发板

移植2.6.13支持2440 creator sz111@126.com 1.首先下载最新的linux2.6.13内核源码。 2.更改makefile： ARCH = arm CROSS_COMPILE = /usr/local/arm/3.4.1/bin/arm-linux- 3.添加nandflash的分区说明。 在mach-smdk2440.c中加入： #include #include #include #include #include #include #include static int chip0_map[] = { 0 }; //add by lili struct mtd_partition bit_default_nand_part[] = { [0] = { .name = "bootloader", .offset = 0x00000000, .size = 0x00060000, }, [1] = { .name = "kernel", .offset = 0x00060000, .size = 0x00200000, }, [2] = { .name = "root", .offset = 0x00260000, .size = 0x03d9c000, } }; /* the bit has 1 selectable slots for nand-flash, the three * on-board chip areas, as well as the external SmartMedia * slot. * * Note, there is no current hot-plug support for the SmartMedia * socket. */ static struct s3c2410_nand_set bit_nand_sets[] = { [0] = { .name = "chip0", .nr_chips = 1, .nr_map = chip0_map, .nr_partitions = ARRAY_SIZE(bit_default_nand_part), .partitions = bit_default_nand_part }, }; static struct s3c2410_platform_nand bit_nand_info = { .tacls = 0, .twrph0 = 30, .twrph1 = 0, .nr_sets = ARRAY_SIZE(bit_nand_sets), .sets = bit_nand_sets, }; 加入s3c_device_nand static struct platform_device *smdk2440_devices[] __initdata = { &s3c_device_usb, &s3c_device_lcd, &s3c_device_wdt, &s3c_device_i2c, &s3c_device_iis, &s3c_device_nand, }; 在函数smdk2440_map_io中加入： s3c_device_nand.dev.platform_data = &bit_nand_info; 禁止ecc校验 修改linux-2.6.13\drivers\mtd\nand\s3c2410.c NAND_ECC_SOFT改为NAND_ECC_NONE 把频率s3c24xx_init_clocks(16934400);改为s3c24xx_init_clocks(12000000);