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+Introduction to OpenPOWER Firmware
+==================================
+
+The ``op-build`` project constructs a host firmware image for OpenPOWER
+machines.
+
+Firmware Components
+-------------------
+
+Buildroot_
+ We use http://buildroot.net/ as the build system for assembling a firmware
+ image. `op-build` is a "Buildroot overlay". We build a kernel and initramfs
+ using buildroot to run the Petitboot boot loader in. We maintain a branch
+ with a minimum number of patches on top of upstream buildroot.
+op-build_
+ A buildroot overlay that assembles OpenPOWER Firmware images.
+SBE_
+ the Self Boot Engine is the first unit inside the POWER processor to start
+ executing. It's job is to set up a core and load Hostboot.
+Hostboot_
+ Low level system boot firmware. It brings up CPU cores, the OCC, Memory
+ and hands control over to OPAL (skiboot)
+OCC_
+ The On Chip Controller is responsible for thermal limits and frequency
+ management.
+OPAL
+ The OpenPOWER Abstraction Layer, provided by skiboot
+skiboot_
+ skiboot implements OPAL (the OpenPOWER Abstraction Layer). Skiboot is
+ boot and runtime firmware and is responsible for bringing up PCI and
+ providing runtime abstractions to the running OS.
+Linux_
+ Once skiboot has finished setting up the machine, it hands control over
+ to a Linux kernel. This kernel provides device drivers and userspace to
+ run the bootloader, Petitboot. We maintain our own branch with a minimal
+ number of patches on top of the latest upstream stable release.
+Petitboot_
+ The bootloader. It is a normal user-space process running on Linux that
+ searches the system for disks and network devices that it can boot the
+ OS from.
+HCODE_
+ Firmware for the power management PPE. Implements heavy lifting for deeper
+ STOP states.
+
+.. _Buildroot: https://github.com/open-power/buildroot
+.. _op-build: https://github.com/open-power/op-build
+.. _SBE: https://github.com/open-power/sbe
+.. _OCC: https://github.com/open-power/occ
+.. _Hostboot: https://github.com/open-power/hostboot
+.. _skiboot: https://open-power.github.io/skiboot/
+.. _Linux: https://github.com/open-power/linux
+.. _Petitboot: https://github.com/open-power/petitboot/
+.. _HCODE: https://github.com/open-power/hcode
+
+Introductory Videos
+-------------------
+
+There are a number of good recorded presentations from various conferences
+around the world that have overviews and deep dives into various parts of
+the firmware stack.
+
+Here, we present technical presentations that may be useful in learning
+about topics relevant to OpenPOWER firmware development.
+
+For broader OpenPOWER topics, check out the following channels:
+
+- `OpenPOWER Foundation` <https://github.com/open-power/op-build/pull/2983>`_
+
+Introductory
+^^^^^^^^^^^^
+
+.. youtube:: https://www.youtube.com/watch?v=a4XGvssR-ag
+.. youtube:: https://www.youtube.com/watch?v=hcLhKjxa-40
+
+Secure Boot
+^^^^^^^^^^^
+
+.. youtube:: https://www.youtube.com/watch?v=hwB1bkXQep4
+
+Interfaces and standards
+^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. youtube:: https://www.youtube.com/watch?v=2TroT3ORw0s
+
+OpenCAPI
+^^^^^^^^
+
+.. youtube:: https://www.youtube.com/watch?v=h3pLBDCqY-I
+
+.. youtube:: https://www.youtube.com/watch?v=K4dhx0ctjkQ
+
+XIVE Interrupt Controller
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. youtube:: https://www.youtube.com/watch?v=s88beMQWkks
+
+Petitboot
+^^^^^^^^^
+
+.. youtube:: https://www.youtube.com/watch?v=4JbDb4bRBK4
+.. youtube:: https://www.youtube.com/watch?v=oxmMJMibZQ8
+
+Booting Faster
+^^^^^^^^^^^^^^
+
+.. youtube:: https://www.youtube.com/watch?v=fTLsS_QZ8us
+
+Testing
+^^^^^^^
+
+.. youtube:: https://www.youtube.com/watch?v=znEM2xqJhBU
+
+Bringup and customisation
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+.. youtube:: https://www.youtube.com/watch?v=v73Nw7NDxYI
+
+.. youtube:: https://www.youtube.com/watch?v=dBEBQQYP_eI