[U-Boot] ppc4xx:tftp error

Stefan Roese
2010-10-26T08:06:55Z

Hi Tim,

(please try to quote correctly upon replying, your answers are hard to read)

On Tuesday 26 October 2010 09:21:50 Tim Rachman wrote:
> > According to your useful guides in our previous Emails, I examined again
> > my ddr sdram parameters that i had set in u-boot. I'm interfacing
> > HYB25D512160AT?7 to PPC440EP, with 133MHz plb frequency.
>
> What SDRAM/DDR init code are you using? Is it
> arch/powerpc/cpu/ppc4xx/sdram.c?
>
>
> Yes, I am. But I changed some parameters according to HYB25D512160AT?7
> datasheet.

Which changes did you make exactly? Are you using the sdram_tr1_set() function
to "fine-tune" the controller settings?

<snip>

> A point: Our custom board doesn't have PCI , Is it possible that some
> setting in PCI routins of yosemite BSP has effect on their shared PLB BUS?

No, I don't think so. But you should create a "real" board port for your
custom board and remove such unused features as PCI in this process.

> BTW, I focus on SDRAM configuration more, Hopefully problem will be solved.

Good luck.