[U-Boot] P4080 Reset Vector

[Scott Wood]

On Tue, 14 Sep 2010 01:43:40 -0700
MArunKumar <marunk2004 at yahoo.com> wrote:

> 
> Hi Kumar Gala
> 
> Thanks for ur kind reply.
> 
> Till, I am not clear why the resect vector points different
> address(0xefff_fffc). 
> 
> From your reply, I understood Text_Base address is 0xeff8_0000, so the
> resetvec address points to 0xefff_fffc.
> 
> For all 85xx processor except(MPC8572) the  resetvec = 0xffff_fffc,
> Text_Base = 0xfff8_0000
> For p4080 the resetvec = 0xefff_fffc,Text_Base = 0xeff8_0000
> 
> For p4080 why the resetvec and Text_Base address is different from the other
> 85xx processor ?. 

The reset vector is 0xfffffffc.  0xeffffffc is where the reset vector
code sits once flash has been remapped.  Until that remapping happens,
you can't use any absolute addresses by symbol.

-Scott