.. SPDX-License-Identifier: Apache-2.0 .. [IEEE1275] *Boot (Initialization Configuration) Firmware: Core Requirements and Practices*, 1994, This is the core standard (also known as IEEE 1275) that defines the devicetree concept adopted by the |spec| and |epapr|. It is available from Global Engineering (http://global.ihs.com/). .. [b7] *Open Firmware Recommended Practice: Interrupt Mapping*, Version 0.9, Open Firmware Working Group, 1996 (http://devicetree.org/open-firmware/practice/imap/imap0_9d.pdf) .. [CHRP] *PowerPC Microprocessor Common Hardware Reference Platform (CHRP) Binding*, Version 1.8, Open Firmware Working Group, 1998 (http://devicetree.org/open-firmware/bindings/chrp/chrp1_8a.ps). This document specifies the properties for Open PIC-compatible interrupt controllers. .. [PAPR] *Power.org Standard for Power Architecture Platform Requirements*, power.org .. [b18] *The Open Programmable Interrupt Controller (PIC) Register Interface Specification Revision 1.2*, AMD and Cyrix, October 1995 .. [EPAPR] *Power.org Standard for Embedded Power Architecture Platform Requirements*, power.org, 2011, https://www.power.org/documentation/power-org-standard-for-embedded-power-architecture-platform-requirements-epapr-v1-1-2/ .. [UEFI] `Unified Extensable Firmware Interface Specification v2.8 Errata A `_, February 2020, `UEFI Forum `_