总结：总共修改了四个文件：
修改：根目录下Makefile.
修改：arch/arm/mach-s3c2440/Makefile
修改：arch/arm/mach-s3c2440/Kconfig
增加：arch/arm/mach-s3c2440/mini2440.c
有需要的可以在下面回邮箱地址，我把修改后文件发给大家。
一、下载代码
二、解压到工作目录
三、修改Makefile
kwrite Makefile
搜索：crosscompile
找到： export KBUILD_BUILDHOST := $(SUBARCH)
ARCH ?= $(SUBARCH)
CROSS_COMPILE ?=
复制代码改为： export KBUILD_BUILDHOST := $(SUBARCH)
ARCH ?= arm
CROSS_COMPILE ?= arm-linux-
复制代码保存。
四、打开arch/arm/mach-s3c2440/
找到mach-smdk2440.c,复制一份，重命名为：mach-mini2440.c
找到： static struct s3c2410_uartcfg smdk2440_uartcfgs[] __initdata = {
[0] = {
.hwport = 0,
.flags = 0,
.ucon = 0x3c5,
.ulcon = 0x03,
.ufcon = 0x51,
},
[1] = {
.hwport = 1,
.flags = 0,
.ucon = 0x3c5,
.ulcon = 0x03,
.ufcon = 0x51,
},
/* IR port */
[2] = {
.hwport = 2,
.flags = 0,
.ucon = 0x3c5,
.ulcon = 0x43,
.ufcon = 0x51,
}
};
/* LCD driver info */
static struct s3c2410fb_display smdk2440_lcd_cfg __initdata = {
.lcdcon5 = S3C2410_LCDCON5_FRM565 |
S3C2410_LCDCON5_INVVLINE |
S3C2410_LCDCON5_INVVFRAME |
S3C2410_LCDCON5_PWREN |
S3C2410_LCDCON5_HWSWP,
.type = S3C2410_LCDCON1_TFT,
.width = 240,
.height = 320,
.pixclock = 166667, /* HCLK 60 MHz, divisor 10 */
.xres = 240,
.yres = 320,
.bpp = 16,
.left_margin = 20,
.right_margin = 8,
.hsync_len = 4,
.upper_margin = 8,
.lower_margin = 7,
.vsync_len = 4,
};
static struct s3c2410fb_mach_info smdk2440_fb_info __initdata = {
.displays = &smdk2440_lcd_cfg,
.num_displays = 1,
.default_display = 0,
#if 0
/* currently setup by downloader */
.gpccon = 0xaa940659,
.gpccon_mask = 0xffffffff,
.gpcup = 0x0000ffff,
.gpcup_mask = 0xffffffff,
.gpdcon = 0xaa84aaa0,
.gpdcon_mask = 0xffffffff,
.gpdup = 0x0000faff,
.gpdup_mask = 0xffffffff,
#endif
.lpcsel = ((0xCE6) & ~7) | 1<<4,
};
复制代码改为： static struct s3c2410fb_display smdk2440_lcd_cfg __initdata = {
#if 0
.lcdcon5 = S3C2410_LCDCON5_FRM565 |
S3C2410_LCDCON5_INVVLINE |
S3C2410_LCDCON5_INVVFRAME |
S3C2410_LCDCON5_PWREN |
S3C2410_LCDCON5_HWSWP,
#endif
.lcdcon5=(S3C2410_LCDCON5_FRM565 | S3C2410_LCDCON5_HWSWP),
.type = S3C2410_LCDCON1_TFT,
.width = 800,
.height = 480,
.pixclock = 40000, /* HCLK 60 MHz, divisor 10 */
.xres = 800,
.yres = 480,
.bpp = 16,
.left_margin = 41,
.right_margin = 68,
.hsync_len = 32,
.upper_margin = 26,
.lower_margin = 6,
.vsync_len = 2,
};
static struct s3c2410fb_mach_info smdk2440_fb_info __initdata = {
.displays = &smdk2440_lcd_cfg,
.num_displays = 1,
.default_display = 0,
.gpccon = 0xaa955699,
.gpccon_mask = 0xffc003cc,
.gpcup = 0x0000ffff,
.gpcup_mask = 0xffffffff,
.gpdcon = 0xaa95aaa1,
.gpdcon_mask = 0xffc0fff0,
.gpdup = 0x0000faff,
.gpdup_mask = 0xffffffff,
.lpcsel = 0xf82,
#if 0
/* currently setup by downloader */
.gpccon = 0xaa940659,
.gpccon_mask = 0xffffffff,
.gpcup = 0x0000ffff,
.gpcup_mask = 0xffffffff,
.gpdcon = 0xaa84aaa0,
.gpdcon_mask = 0xffffffff,
.gpdup = 0x0000faff,
.gpdup_mask = 0xffffffff,
.lpcsel = ((0xCE6) & ~7) | 1<<4,
#endif
};
复制代码以支持7寸屏的正确显示，如果有用3.5寸屏的，请回复，我发相应代码。
将所有smdk2440改成mini2440.
搜索MACHINE_START在结果处改为：
MACHINE_START(MINI2440, "MINI2440")
修改时钟频率：
找到： static void __init mini2440_map_io(void)
{
s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
s3c24xx_init_clocks(12000000);
s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
}
复制代码这段中原来的部分不是12000000，即不是12MHz，改过来。
在/arch/arm/plat-x3c24xx/common-smdk.c中，
修改nand 分区为：
[0]={
.name = "bootloader",
.offset = 0x00000000,
.size = 0x00030000,
},
[1]={
.name = "kernel",
.offset = 0x00050000,
.size = 0x00200000,
},
[2]={
.name = "root",
.offset = 0x00250000,
.size = 0x03dac000,
}
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yellowater发表于 4 天前 21:24 | 只看该作者 本帖最后由 yellowater 于 2009-9-26 22:02 编辑
修改mini2440_map_io为：（其实就加了一句话）static void __init mini2440_map_io(void)
{
s3c_device_nand.dev.platform_data = &mini2440_nand_info;
s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc));
s3c24xx_init_clocks(12000000);
s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs));
}
复制代码增加头文件：
#include
#include
#include
#include
我是加在了：
#include
后面。
背光驱动：static void __init smdk2440_machine_init(void){
s3c24xx_fb_set_platdata(&smdk2440_fb_info);
s3c_i2c0_set_platdata(NULL);
platform_add_devices(smdk2440_devices, ARRAY_SIZE(smdk2440_devices));
smdk_machine_init();
}
复制代码改成：static void __init smdk2440_machine_init(void)
{
s3c24xx_fb_set_platdata(&smdk2440_fb_info);
s3c_i2c0_set_platdata(NULL);
s3c2410_gpio_cfgpin(S3C2410_GPG4, S3C2410_GPG4_OUTP);
s3c2410_gpio_setpin(S3C2410_GPG4, 1);
platform_add_devices(smdk2440_devices, ARRAY_SIZE(smdk2440_devices));
smdk_machine_init();
}
复制代码
本文来自: USR组织官方网站() 详细出处参考：
在上面所一直在修改的文件所在文件夹下的Makefilｅ最后加一句：
obj-$(CONFIG_MACH_MINI2440) += mach-mini2440.o
同文件夹下的Ｋｃｏｎｆｉｇ文件中，在：
endmenu 前加上：
config MACH_MINI2440
bool "MINI2440 development board"
select CPU_S3C2440
help
Say Y here if you are using the MINI2440 development board
回到代码根目录：
make s3c2410_defconfig
make menuconfig
System Type->S3C2440 Machines->只选种mini2440 developing board
Boot Options->Default kernel command string 填为：
noinitrd root=/dev/mtdblock2 boot=/linuxrc console=ttySAC0
make zImage
不过忘记了一点，没配置linux logo.
make menuconfig
Device Drivers->Graphics Support->Boot up logo.选 上就行了。
make zImage,有 原来的 文件，现在编译很快。
本文来自: USR组织官方网站() 详细出处参考：
嗯，这个只是第一个，其它部分移植，请见在下所辖论坛：
