QQ2440改 GT2440
1跟换Nand Flash
将QQ2440的Nand Flash k9f1208u0b (64M)焊接取下来，换上k9f2g08u0a 或k9f2g08u0b (256M)
2.去掉QQ2440板上右边靠中间的电阻 NR5,不去掉无法从Nand Flash 启动
这里去掉电阻配置 Nand Flash Memory Configuration Table
对应的管脚 NCON0, GPG13, GPG14, GPG15
高， 高， 高， 低
Advance 2Kbytes 5-Addr 8-bit bus with
3,在网上下载一个QQ2440.jflash的jlink下载的配置文件，将GT2440的u-boot.bin下载进去
4.对于lcd显示偏移的情况(4.3寸)，根据自己的情况修改
修改u-boot源码
/opt/GTStudio/GT2440/u-boot-1.1.6/include/configs/GTStudio.h
#elif(LCD_TFT == TX11D) #define CONFIG_LCD_VBPD 3 #define CONFIG_LCD_VFPD 5 #define CONFIG_LCD_VSPW 5 #define CONFIG_LCD_HBPD 39 #define CONFIG_LCD_HFPD 5 #define CONFIG_LCD_HSPW 5 #define CONFIG_LCD_CLKVAL 4
Linux 源码修改
/opt/GTStudio/GT2440/linux-2.6.30.4/arch/arm/mach-s3c2440/mach-gt2440.c
#elif defined(CONFIG_FB_S3C24X0_TX480272) .width = 480, .height = 272, .pixclock = 40000, /* HCLK 100 MHz, divisor 1 */ .setclkval = 0x4, .xres = 480, .yres = 272, .bpp = 16, .left_margin = 5, /* for HFPD*/ .right_margin = 43, /* for HBPD*/ .hsync_len = 5, /* for HSPW*/ .upper_margin = 5, /* for VFPD*/ .lower_margin = 4, /* for VBPD*/ .vsync_len = 5, /* for VSPW*/
(笔记) (ARM) QQ2440 开发板改为 GT2440 (Linux) (开发板),布布扣,bubuko.com
(笔记) (ARM) QQ2440 开发板改为 GT2440 (Linux) (开发板)
原文：http://www.cnblogs.com/think-o/p/3825196.html