[U-Boot-Users] MPC8266ADS patch

Wolfgang Denk wd at denx.de
Thu Sep 11 22:15:46 CEST 2003

Dear Rune,

in message <9F5558593173D21190EA0008C7B17698731434 at innsys1> you wrote:
> The current configuration in U-BOOT works, and boots Linux with no problem.
> It will, however, not work on a virgin ADS development board. You have to
> change one jumper to get the CPU to use the Hardware Configuration word from
> Flash, and not from BCSR... (JP3 I think)
> There is a huge textbox in the start of the MPC8266ADS.h file that explains
> this.
> There is absolutely no reason to change the BCSR and PCI_INT addresses. They
> work fine as they are set now.

Thanks for the confirmation. I will ignore Allen Curtis' patch, then.

> Only other issue I know about (in u-boot-0.4.5) is that the memory
> controller is set to use Page Based Interleave (PBI), which I do not think
> works with the standard 16MB DIMM that comes with the eval board. There were
> some discussion about setting the SDAM field of the PSDMR differently to fix
> this, but I havent gotten that to work.
> Fix is to use bigger than 16MB DIMM, or turn off PBI (top of
> board/mpc8266ads/mpc8266ads.c) This should probaby be changed...

If you know for sure, can you please submit a patch?


Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
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