How to porting u-boot to my own board?

Hello Scott,

I modify some code according to my board and U-boot runs on my board. It runs in sdram.

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U-Boot 1.1.3 (Sep 14 2005 - 16:46:34)

CPU?nbsp; : Nios-II

SYSID : 3ef94735, Wed Sep 14 08:39:42 2005

BOARD : Microtronix MCK-1C20

*** Warning - bad CRC, using default environment

==>[/b]

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But I still have some questions.

1. When I change the TEXT_BASE in config.mk, u-boot can not be made.

Can you tell me detailed about TEXT_BASE, and how to set it?

2. First, I creat a new directory to store the new platform.

make xxxx_config --------OK

make ---------error

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make -C &#39;dirname board/microtronix/mtxkit1c20/libmtxkit1c20.a&#39;

make[1]: Entering directory &#39;/cygdrive/....../u-boot/board/microtronix/mtxkit1c20&#39;

make[1]:*** No rule to make target &#39;mtxkit1c20.c&#39;, needed by &#39;.depend&#39;. Stop.

......

make: *** [board/microtronix/mtxkit1c20/libmtxkit1c20.a] Error 2[/b]

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But when I put the platform under altera directory, u-boot is made OK.

Why?

3. I run saveenv and re-run, but the warning still appear. Why?

Thank you,

LiangYi