PowerPC64 Architecture

Supported Kernels

The PowerPC64 port is released, but presently does not support SMP. SMP support will be added at a later stage.

The PowerPC64 port currently runs on three platforms:

Apple G5 (PPC970) Desktop / Xserve

IBM Power4 - A quad CPU PSeries

IBM Power3 - A dual CPU PSeries

The kernel is also running on the IBM mambo simulator simulating a Power3 style cpu.

Booting the Xserve G5

1. Power-ON while pressing the identify button
2. Release identify button when blue LEDs start in a left-right motion
   The bottom right LED should turn-on, if not, check the identify button at back of case, It sucks (gets stuck)
3. Pressing identify button moves the blue LED left.
   LEDs are numbered 1-7 from right to left
   Position 6 - Enter OpenFirmware
   Position 7 - Boot DHCP
   
4. Hold identify button down, top row blue LEDs start turning on.
   Release when all LEDs have lit up (they turn off again once all ON, thats ok)
5. Your mode is selected

Some usefull commands, see http://www.firmworks.com/QuickRef.html

 dev / : Set the root of the device tree
 ls : Listing of device tree
 words : show current node's methods
 devalias : Lists device aliases

 printenv
 setenv variable value
 unsetenv

 boot [device-specifier] [arguments]
 load [device-specifier] [arguments]

 setenv auto-boot? false
 setenv boot-screen scca
 setenv console-screen scca
 setenv input-device scca
 setenv output-device scca
 setenv boot-device enet:,xserve.boot
 setenv load-base 0x800000
 setenv real-mode? false
 reset-all

To tftp load file "test"

 load enet:,test

A contribution to the L4 community from the UNSW/NICTA team.