The Open Firmware Standard
IEEE 1275-1994 Standard for Boot Firmware (Core Requirements and Practices) - This standard describes every aspect of OpenFirmware and thus OpenBIOS
Errata - No Standard without mistakes - This document contains corrections of mistakes and clarifications of the IEEE 1275-1994 standard (Draft #4).
Bindings and Supplements for Bus Systems
ISA - Draft 0.4
PC-Card
PCI - Approved Version 2.1
USB 1.0
Device Bindings
8042 - ISA Keyboard/Mouse Controller
Audio - ISA Audio
Floppy - ISA Floppy Controller
ISA DMA - ISA DMA Controller
ISA PIC - ISA Interrupt Controller
Linear Framebuffer
Parallel - ISA Parallel Port
Serial - ISA Serial Port
VGA - VGA Display
Recommended Practice
16 Color Text Extension - Draft 1.2
8 Bit Graphics Extension - Draft 1.2
Device Support Extensions - Approved Version 1.0
Generic Names - Approved Version 1.4
Interrupt Mapping - Draft 0.9
Interposition - Draft 0.2
SCSI-3 Parallel Interface - Version 1.0 - bug: last page first!!
TFTP Booting Extension - Version 1.0