While the Pismo and Lombard may look the same on the outside, they are definitely NOT similar enough to be lumped together. I own one of each, both 400 MHz versions.
The Lombard has a 66 MHz system bus, and the firmware is closer to the older PB line (and if you are trying to get Linux to boot on one of these, it's referred to as "Old World"). It also has SCSI, and is bootable off that interface.
The Pismo on the other hand has a "New World" Open Firmware, 100 MHz system bus, and everything the newer PBs have, except for Bluetooth. It even has an older internal Airport card, though the older (11 Mbps flavour). It also has firwire ports, and is bootable off those, contrasted to the older lombard.
The graphics sub-systems are also extremely different. The Lombard has a PCI-based Mach 64 GPU, and a separate decoder chip for the DVD. This is the chip that was unsupported in OS X. The Pismo has a Rage 128, AGP based GPU, with a built-in DVD decoder, which IS supported in OS X.
Take a look at http://penguinppc.org/
They have a link to someone who is already hacking
access to the iPod under linux. The direct link
to that page is:
http://neuron.com/~jason/ipod.html
Slashdot Mirror
While the Pismo and Lombard may look the same on the outside, they are definitely NOT similar enough to be lumped together. I own one of each, both 400 MHz versions.
The Lombard has a 66 MHz system bus, and the firmware is closer to the older PB line (and if you are trying to get Linux to boot on one of these, it's referred to as "Old World"). It also has SCSI, and is bootable off that interface.
The Pismo on the other hand has a "New World" Open Firmware, 100 MHz system bus, and everything the newer PBs have, except for Bluetooth. It even has an older internal Airport card, though the older (11 Mbps flavour). It also has firwire ports, and is bootable off those, contrasted to the older lombard.
The graphics sub-systems are also extremely different. The Lombard has a PCI-based Mach 64 GPU, and a separate decoder chip for the DVD. This is the chip that was unsupported in OS X. The Pismo has a Rage 128, AGP based GPU, with a built-in DVD decoder, which IS supported in OS X.
Take a look at http://penguinppc.org/ They have a link to someone who is already hacking access to the iPod under linux. The direct link to that page is: http://neuron.com/~jason/ipod.html