doc: Add HCODE and op-build to introduction
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>
diff --git a/doc/introduction.rst b/doc/introduction.rst
index 9fde475..7a2c03d 100644
--- a/doc/introduction.rst
+++ b/doc/introduction.rst
@@ -12,6 +12,8 @@
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.
@@ -36,11 +38,16 @@
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