[U-Boot] Uboot debugging clarification!

[Wolfgang Denk]

Dear Ramalingam C,

In message <OF04B24567.651E9130-ON652576E9.004FB606-652576E9.004FF537 at lntemsys.com> you wrote:
>
> I am working on iMX515 processor in our project. Our evaluation board is 
> iMX51EVK. We are using the uboot. 
> 
> For our board we have designed the NAND as storage device! But for our 
> NAND chip we dont have the Advanced toolkit (freescale s/w) support! So we 
> have to load the uboot binary to DDR2 through JTAG emulator and boot the 
> uboot!.

Is! there! any! specific! reason! for! ending! evary! sentence! in!
an! exclamation! mark!?   Why are you shouting at us?


> When we are trying this on iMX51EVK board by removing the SD card, control 
> is going to a infinite loop. The same binary is working if we store in the 
> SD card of EVK board and boot!

Then you obviously are doing something wrong or missing some
initialization, or both.

> If we get the uboot running then we can store the uboot to NAND and 
> proceed with our testing!

Please see http://www.catb.org/%7eesr/faqs/smart-questions.html#urgent
There is a number of companies providing commercial support for
U-Boot, so if your project is stuck you might consider contacting
these.

> It will be really helpful if you can help us in modifying the uboot such a 
> way that it will boot from 
> DDR2 itself.

You cannot "boot from DDR2", because the DDR2 needs to be initialized
first, and to do so so need information (and eventually code) from
the boot device.


Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Winners never talk about glorious victories. That's  because  they're
the  ones  who  see  what the battlefield looks like afterwards. It's
only the losers who have glorious victories.
                                      - Terry Pratchett, _Small Gods_