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【转】u-boot 1.1.5 移植成功

哈哈，没想到现阶段的移植就是东拼西凑，多亏u-boot丰富的驱动，先辈们辛勤的劳动成果啊 ^_^

板子是GX-ARM9-2410EP增强型嵌入式教学实验系统，相当垃圾，资料缺少、不全不说，还骗人，两块Nor Flash，SST 39VF800A、INTEL E28F320，分明是1M和4M大小，偏说成2M AMD线性FLASH和8M Intel线性FLASH，我就奇怪学校怎么回买这种东西...

言归正传，下面是具体的移植过程：

1.硬件 s3c2410 ，64M SDRAM，INTEL E28F320 4M Nor Flash ，CS8900和DM9000双网卡（暂用CS8900）；

2.基本配置，使用#make s3c2410_config 。这时的板已经可以启动，可以通过网卡下载内核，可以设置启动参数启动 Linux2.6了，但还不能读写Nor Flash，存储环境变量。

3.配置Nor Flash，主要是修改 board/s3c2410/flash.c 。用 Source-Navigator 或者 grep 可以找到很多带INTEL E28F320驱动的flash.c文件。这里参考http://www.sjsunny.com/jsfw/Linux/06.htm ，将board/CMI/flash.c的Nor Flash借过来。删除write_short()和wirte_buff()函数，将board/ep7312/flash.c的wirte_word ()和wirite_buff()函数拷过来（与CMI的写机制不通）。加入以下语句：

＃defin ASH_BASE0_PRELIM CFG_FLASH_BASE

修改FLASH_BLOCK_SIZE为0x20000（块大小128K）。修改 include/s3c2410.h ，可以在最后的

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