First of all thank you for your answer.

I still have the same problem when compiling u-boot, when comparing my file xparameters.h with the one of a reference design given by Xilinx and the one provided with

u-boot, I mentioned that I have not a part /*U-boot Redefines*/ or /*Linux Redefines*/ in my xparameters.h

I don't really understand , why I did not obtain this part of xparameters.h when I do Libgen to generate my xparameters.h

> /u-boot/board/xilinx/ml300,
>
> I added to this file the part /*U-BOOT Redefines*/ from the initial
> xparameters.h

If I understand this correctly this file gets automatically
generated; I'm not sure if you are supposed to modify it manually.

> And I got this error:
...
> ml300.c:96: `XPAR_XUARTNS550_CLOCK_HZ' undeclared

Obviously you made errors when modifying xparameters.h;normally the
#define is there.

Best regards,

Wolfgang Denk

--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
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