[U-Boot-Users] PingSend

richard at uclinux.net richard at uclinux.net
Sat Jun 4 22:39:39 CEST 2005


> In message <r02010500-1041-E8859113D52E11D9ABA900039387ACB6@[10.0.1.1]> you wrote:
> > 
> > Changing from:
> ....
> >     volatile IP_t *ip;
> >     volatile ushort *s;
> ....
> > to:
> ....
> >     IP_t *ip;
> >     ushort *s;
> ....
> > Solved the ping problem (o;
> 
> Masked, not solved. Broken toolchain ?
> 

What I thought as well...think it is the ARCtangent A4 CPU
which behaves abnormal when using load/store instruction
bypassing cache on SDRAM...

It generates correctly stb.di/stw.di instruction with
"volatile" keyword...which are needed and work for
periphals like on-chip UART...


best regards
rick






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