[U-Boot-Users] why "go 0x0" and "go 0x0c000000" could start u-boot?

[U-Boot-Users] why "go 0x0" and "go 0x0c000000" could start u-boot?

[HoHo_Zhao]

hello, everyone:

(Will somebody write to me to tell me how i can see your replies?)

when reset cpu or power up, u-boot starts, press any key to stop it
automaticly boot the kernel,
i test "go 0x0" and "go 0x0c000000", but two of them could go to restart
u-boot!
I am sure u-boot was flashed in 0x0c000000, but why "go 0x0" has the
same effect?!

With my mxlads board, I know another truth, when power up, cpu exec the
first cmd in 0x0c000000.
(this could be set by switches)

Somebody know why?

HoHo_Zhao

[U-Boot-Users] Re： why "go 0x0" and "go 0x0c000000" could start u-boot?

[Sam Song]

HoHo_Zhao <hoho_zhao@sina.com> wrote:
> hello, everyone:
> 
> (Will somebody write to me to tell me how i can see your replies?)

If you gotten two replies at the same time, it means you can 
see my reply and our replies.

> I am sure u-boot was flashed in 0x0c000000, but why "go 0x0" has the
> same effect?!

Probably 0x0 is kind of invalid address for normal access. So
'go 0x0' made CPU in check-stop status and then it restart CPU
like reset from 0x0c000000. Pls check the board memory map 
to understand it.

Regards,

Sam


		
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