[U-Boot-Users] [PATCH] support nand based environment

The attached file, env_nand.c, allows storing U-Boot environment data in NAND flash. It is compiled based on CFG_ENV_IS_IN_NAND.

You need make the following changes to be able to use it: 1. nand_rw() and nand_erase() in cmd_nand.c need to be made public. 2. env_common.c needs add CFG_ENV_IS_IN_NAND for compile condition. 3. env_nand.o needs to be added to obj list

I currently use U-Boot1.02 which is not up-to-date. I guess sending this new file makes merging easier.

Regards, Jian