Dear Friends,

I am interested in boot code(BIOS) of Genesi's PegasosPPC. I like to know more about the OS loader and the
vt8231(south bridge) initialization code.
I heard Pegasos followed open firmware standards.
If code is available please provide me the pointer for the
SmartFirmware.

Thanks in advance.

Regards,
Suresh Chandra Mannava

The OF is customized and is avaible for licensing AFAIK

magnetic

Thanks for the information.
Can we get any third party firmware for Genesi? Hope some people must have developed a open bootloader.

Thanks,
Suresh Chandra Mannava

Perhaps this guide helps you?

http://www.ppczone.org/forums/viewtopic.php?t=445

Quote:

That is a good article!

BTW, just for general information regarding the OpenFirmware and HW/OS development at this level, I would like to point out a first draft has been released outlining the "Power.org™ Standard for Power Architecture™ Platform Requirements (Workstation, Server)".

Note that the documents will require you to enter your power.org username and password. The simplest form of Power.org membership is free of charge though, and everyone is welcome to sign up ...

Quote:

[ Edited by takemehomegrandma on 2006/7/1 10:53 ]

thanks a lot.

Infact I am very interested in knowing how the boot code initializes vt8231(x86 compatible hardware).

It happened, I got the Schematics for Genesi from
http://www.power.org/members/developers/downloads/genesi_pegasosppc

I am interested in digging the firmware for the same.

Regards,
Suresh Chandra Mannava

Quote:

The vt8231 is (as I gather) pretty much "just a PCI device". The southbridge device is a multi-function controller containing serial, parallel, MFM controller, IDE controller, USB host controller, legacy PS/2 ports and AC97 audio via an i2s bus (i2c, but for audio). It should be compatible with any PCI capable system.

In the past, Cobalt Networks have used VIA southbridges in their RaQ server products (the MIPS line, not the x86 line). I gather there are other companies who have used them as well (an old motherboard I had used a combination of AMD northbridge and VIA southbridge).

The initialisation should be fairly simple - if you're interested, I think VIA have publicly available datasheets for developers. Failing that, there's the Linux kernel source, which doesn't rely on the firmware initialising the device - it just does it by itself.