On Wednesday 30 November 2005 08:25, Martin Krause wrote:

Hi Nick,

ndrooght@cadlink.com wrote on :

...

I am using the IceCube MPC5200 evaluation board from Freescale. Uboot 1.1.4 is operational on the board. With no PCI card install, I get the following on startup:

PCI: Bus Dev VenId DevId Class Int 00 1a 1057 5803 0680 00 In: serial Out: serial Err: serial Net: FEC ETHERNET

When I plug in a PCI card, the board crashes with the following message:

PCI: Bus Dev VenId DevId Class Int Bus Fault @ 0x03fa3cc0, fixup 0x00000000 Machine check in kernel mode. Caused by (from msr): regs 03f4fd20 Unknown values in msr NIP: 03FA3CC0 XER: 00000000 LR: 03FA3CB4 REGS: 03f4fd20 TRAP: 0200 DAR: 20446576 MSR: 00003000 EE: 0 PR: 0 FP: 1 ME: 1 IR/DR: 00

Has anyone else come across this problem? If you had, what can be done

Is your PCI card a real 3,3 V card? The IceCube (Lite5200) board only supports 3,3 V cards. No 5,0 V cards and no 3,3 V/5 V mixed cards are allowed. Because of an unfurtunate design of the Lite5200 board it is possible to plug in a 5 V PCI card in reverse direction into the 3,3 V coded PCI receptacle.

You are right, but in the "reverse" case you probably won't see the "machine check", you probably see some smoking signs of the board :(

It turned out that even if you have a 3.3V card it must not necessarily work. I only managed to make some Intel NICs work.

Ciao, Gerhard

Gerhard Jaeger gjaeger@sysgo.com SYSGO AG Embedded and Real-Time Software www.sysgo.com | www.elinos.com | www.pikeos.com | www.osek.de