j-flash配置用于烧录mini 2440 nor flash

参考资料：http://code.google.com/p/u-boot-all-in-one/source/browse/Documents/mini2440.jflash?r=108

http://blog.csdn.net/xuxiangwin/article/details/6150291?userName=jiankangshiye&userInfo=jqobIVB1uT%2Fe1ZVwi5Liq0aXlQoal4msMAwjwOA88yCzdib5asiRPyR4vr6dZbu%2FKMWdnyMEqIEIJ6PvNZF67ACu9Lirwqdvxd3nA7wNIEWGxpGxWZByLoWTqa8J0coFSQlQuc3QGZeYUkjPnsIg%2Bg%3D%3D