[U-Boot-Users] AMCC440SPe & PCI Express

Patil, Pankaj P. Pankaj.Patil at hp.com
Fri Dec 22 23:21:05 CET 2006

Thanks for the update,
I noticed that changing PECFG_POM0LAL to 0xB0000000 instead of 0x00000000 in 440spe_pcie.c seems to get rid of the bus error. I don't have a YUCCA board so i cannot verify it but worth the try.
Another strange thing i noticed was that i have a multifunction device on PCIE0. U-boot, however would only detect function0. pci display 1.1.0 succeeds but pci display 1.1.1 fails to detect.
This might be my device problem. Its a tachyon. Just curious if anybody had trouble detecting multifunction device on PCIE??

Thanks again

-----Original Message-----
From: wd at denx.de [mailto:wd at denx.de]
Sent: Friday, December 22, 2006 2:50 PM
To: Patil, Pankaj P.
Cc: u-boot-users at lists.sourceforge.net
Subject: Re: [U-Boot-Users] AMCC440SPe & PCI Express 

Dear Pankaj,

in message <9B832BEB407A774AA0520CCFC23221970B47D178 at CXOEXC11.AMERICAS.CPQCORP.NET> you wrote:
> I have been using u-boot-1.1.5 on my custom 440SPe based board. I am
> able to establish a link on PCIE0. However, I am having trouble
> accessing outbound Memory on PCIE0. My memory map seetings for Outbound
> PCIE memory are the default U-boot Settings. I was curious if anybody's
> tried accessing PCIE Outbound memory with the default settings. I seem
> to get a bus error when I try to access that region.

I confirm that there is some problem with PCIe on these systems. We're
working on this right now. Please stay tuned.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Q:  How do you play religious roulette?
A:  You stand around in a circle  and  blaspheme  and  see  who  gets
    struck by lightning first.

More information about the U-Boot mailing list