Add skiboot-5.5.0 release notesskiboot-5.5.0

Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>

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diff --git a/doc/release-notes/skiboot-5.5.0.rst b/doc/release-notes/skiboot-5.5.0.rst
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+.. _skiboot-5.5.0:
+
+skiboot-5.5.0
+=============
+
+skiboot-5.5.0 was released on Friday April 7th 2017. It is the new stable
+release of skiboot, taking over from the 5.4 release, first released on
+November 11th 2016.
+
+skiboot-5.5.0 contains all bug fixes as of :ref:`skiboot-5.4.3`
+and :ref:`skiboot-5.1.19` (the currently maintained stable releases).
+
+For how the skiboot stable releases work, see :ref:`stable-rules` for details.
+
+This release is a good level set of POWER9 support for bringup activities.
+If you are doing bringup, it is strongly suggested you continue to follow
+skiboot master.
+
+After skiboot 5.5.0, we move to a regular six week release cycle,
+similar to op-build, but slightly offset to allow for a short stabilisation
+period. Expected release dates and contents are tracked using GitHub milestone
+and issues: https://github.com/open-power/skiboot/milestones
+
+Changes in skiboot-5.5.0
+------------------------
+
+See changes in the release candidates:
+
+- :ref:`skiboot-5.5.0-rc1`
+- :ref:`skiboot-5.5.0-rc2`
+- :ref:`skiboot-5.5.0-rc3`
+
+Changes since skiboot-5.5.0-rc3
+-------------------------------
+
+- hdat: parse processor attached i2c devices
+
+  Adds basic parsing for i2c devices that are attached to the processor
+  I2C interfaces. This is mainly VPD SEEPROMs.
+- libflash/blocklevel: Add blocklevel_smart_erase()
+
+  With recent changes to flash drivers in linux not all erase blocks are
+  4K anymore. While most level of the pflash/gard tool stacks were written
+  to not mind, it turns out there are bugs which means not 4K erase block
+  backing stores aren't handled all that well. Part of the problem is the
+  FFS layout that is 4K aligned and with larger block sizes pflash and the
+  gard tool don't check if their erase commands are erase block aligned -
+  which they are usually not with 64K erase blocks.
+
+  This patch aims to add common functionality to blocklevel so that (at
+  least) pflash and the gard tool don't need to worry about the problem
+  anymore.
+- external/pflash: Use blocklevel_smart_erase()
+- external/gard: Use blocklevel_smart_erase()
+- libstb/create-container: Add full container build and sign with imprint keys
+
+  This adds support for writing all the public key and signature fields to the
+  container header, and for dumping the prefix and software headers so they may
+  may be signed, and for signing those headers with the imprint keys.
+- asm: do not set SDR1 on POWER9. This register does not exist in ISAv3.
+
+Testing:
+
+- mambo: Allow setting the Linux command line from the environment
+
+  For automated testing it's helpful to be able to set the Linux command
+  line via an environment variable.
+- mambo: Add util function for breaking on console output
+
+
+Contributors
+------------
+
+Processed 408 csets from 31 developers
+
+3 employers found
+
+A total of 24073 lines added, 16759 removed (delta 7314)
+
+Extending the analysis done for the last few releases, we can see our trends
+in code review across versions:
+
+======== ====== ======= ======= ======  ========
+Release	 csets	Ack	Reviews	Tested	Reported
+======== ====== ======= ======= ======  ========
+5.0	 329	 15	     20	     1	       0
+5.1	 372	 13	     38	     1	       4
+5.2-rc1	 334	 20	     34	     6	      11
+5.3-rc1  302     36          53      4         5
+5.4.0    361     16          28      1         9
+5.5.0    408     11          48     14        10
+======== ====== ======= ======= ======  ========
+
+I am absolutely *thrilled* as to the uptick of reviews and tested-by occuring
+over our 5.4.0 release. Although we are not yet back up to 5.3 era levels for
+review, we're much closer. For tested-by, we've set a new record, which is
+excellent!
+
+
+Developers with the most changesets
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+========================== === =======
+Developer                    # %
+========================== === =======
+Benjamin Herrenschmidt     139 (34.1%)
+Stewart Smith               60 (14.7%)
+Oliver O'Halloran           54 (13.2%)
+Gavin Shan                  23 (5.6%)
+Michael Neuling             20 (4.9%)
+Vasant Hegde                15 (3.7%)
+Cyril Bur                   15 (3.7%)
+Claudio Carvalho            14 (3.4%)
+Andrew Donnellan            11 (2.7%)
+Ananth N Mavinakayanahalli   9 (2.2%)
+Alistair Popple              6 (1.5%)
+Nicholas Piggin              5 (1.2%)
+Cédric Le Goater             5 (1.2%)
+Pridhiviraj Paidipeddi       5 (1.2%)
+Michael Ellerman             4 (1.0%)
+Shilpasri G Bhat             4 (1.0%)
+Russell Currey               3 (0.7%)
+Jack Miller                  2 (0.5%)
+Chris Smart                  2 (0.5%)
+Dave Heller                  1 (0.2%)
+Akshay Adiga                 1 (0.2%)
+Reza Arbab                   1 (0.2%)
+Matt Brown                   1 (0.2%)
+Frederic Barrat              1 (0.2%)
+Hank Chang                   1 (0.2%)
+Willie Liauw                 1 (0.2%)
+Werner Fischer               1 (0.2%)
+Jeremy Kerr                  1 (0.2%)
+Patrick Williams             1 (0.2%)
+Joel Stanley                 1 (0.2%)
+Alexey Kardashevskiy         1 (0.2%)
+========================== === =======
+
+Developers with the most changed lines
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+========================== ===== =======
+Developer                      # %
+========================== ===== =======
+Oliver O'Halloran          18278 (48.5%)
+Benjamin Herrenschmidt      5512 (14.6%)
+Cyril Bur                   3184 (8.4%)
+Alistair Popple             3102 (8.2%)
+Stewart Smith               2757 (7.3%)
+Gavin Shan                   802 (2.1%)
+Ananth N Mavinakayanahalli   544 (1.4%)
+Claudio Carvalho             489 (1.3%)
+Dave Heller                  425 (1.1%)
+Willie Liauw                 361 (1.0%)
+Andrew Donnellan             315 (0.8%)
+Michael Neuling              290 (0.8%)
+Vasant Hegde                 253 (0.7%)
+Shilpasri G Bhat             228 (0.6%)
+Nicholas Piggin              222 (0.6%)
+Reza Arbab                   198 (0.5%)
+Russell Currey               158 (0.4%)
+Jack Miller                  127 (0.3%)
+Cédric Le Goater             126 (0.3%)
+Chris Smart                   95 (0.3%)
+Akshay Adiga                  57 (0.2%)
+Hank Chang                    56 (0.1%)
+Pridhiviraj Paidipeddi        47 (0.1%)
+Michael Ellerman              29 (0.1%)
+Matt Brown                    29 (0.1%)
+Alexey Kardashevskiy           2 (0.0%)
+Frederic Barrat                1 (0.0%)
+Werner Fischer                 1 (0.0%)
+Jeremy Kerr                    1 (0.0%)
+Patrick Williams               1 (0.0%)
+Joel Stanley                   1 (0.0%)
+========================== ===== =======
+
+Developers with the most lines removed
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+========================== ===== =======
+Developer                      # %
+========================== ===== =======
+Oliver O'Halloran           8516 (50.8%)
+Werner Fischer                 1 (0.0%)
+========================== ===== =======
+
+Developers with the most signoffs
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Total: 364
+
+======================== ===== =======
+Developer                    # %
+======================== ===== =======
+Stewart Smith              348 (95.6%)
+Michael Neuling              6 (1.6%)
+Oliver O'Halloran            3 (0.8%)
+Benjamin Herrenschmidt       2 (0.5%)
+Vaidyanathan Srinivasan      1 (0.3%)
+Hank Chang                   1 (0.3%)
+Jack Miller                  1 (0.3%)
+Gavin Shan                   1 (0.3%)
+Alistair Popple              1 (0.3%)
+======================== ===== =======
+
+
+Developers with the most reviews
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Total 50
+
+======================== ===== =======
+Developer                    # %
+======================== ===== =======
+Vasant Hegde                14 (28.0%)
+Andrew Donnellan             9 (18.0%)
+Russell Currey               6 (12.0%)
+Cédric Le Goater             5 (10.0%)
+Oliver O'Halloran            4 (8.0%)
+Vaidyanathan Srinivasan      3 (6.0%)
+Gavin Shan                   3 (6.0%)
+Alistair Popple              2 (4.0%)
+Frederic Barrat              2 (4.0%)
+Mahesh Salgaonkar            1 (2.0%)
+Cyril Bur                    1 (2.0%)
+======================== ===== =======
+
+Developers with the most test credits
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Total 14
+
+======================== ===== =======
+Developer                    # %
+======================== ===== =======
+Willie Liauw                 4 (28.6%)
+Mark E Schreiter             3 (21.4%)
+Claudio Carvalho             3 (21.4%)
+Gavin Shan                   1 (7.1%)
+Michael Neuling              1 (7.1%)
+Pridhiviraj Paidipeddi       1 (7.1%)
+Chris Smart                  1 (7.1%)
+======================== ===== =======
+
+Developers who gave the most tested-by credits
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Total 14
+
+========================== === =======
+Developer                    # %
+========================== === =======
+Gavin Shan                   7 (50.0%)
+Stewart Smith                4 (28.6%)
+Chris Smart                  1 (7.1%)
+Oliver O'Halloran            1 (7.1%)
+Ananth N Mavinakayanahalli   1 (7.1%)
+========================== === =======
+
+
+Developers with the most report credits
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Total 10
+
+============================ = =======
+Developer                    # %
+============================ = =======
+Hank Chang                   4 (40.0%)
+Mark E Schreiter             3 (30.0%)
+Guilherme G. Piccoli         1 (10.0%)
+Colin Ian King               1 (10.0%)
+Pradipta Ghosh               1 (10.0%)
+============================ = =======
+
+
+Developers who gave the most report credits
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Total 10
+
+============================ = =======
+Developer                    # %
+============================ = =======
+Gavin Shan                   8 (80.0%)
+Andrew Donnellan             1 (10.0%)
+Jeremy Kerr                  1 (10.0%)
+============================ = =======
+
+Top changeset contributors by employer
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+========================== === =======
+Employer                     # %
+========================== === =======
+IBM                        406 (99.5%)
+SuperMicro                   1 (0.2%)
+Thomas-Krenn AG              1 (0.2%)
+========================== === =======
+
+Top lines changed by employer
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+========================= ===== =======
+Employer                      # %
+========================= ===== =======
+IBM                       37329 (99.0%)
+SuperMicro                  361 (1.0%)
+Thomas-Krenn AG               1 (0.0%)
+========================= ===== =======
+
+Employers with the most signoffs
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Total 364
+
+========================= ==== =======
+Employer                     # %
+========================= ==== =======
+IBM                        363 (99.7%)
+(Unknown)                    1 (0.3%)
+========================= ==== =======
+
+Employers with the most hackers
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+Total 31
+
+========================= ==== =======
+Employer                     # %
+========================= ==== =======
+IBM                         29 (93.5%)
+Thomas-Krenn AG              1 (3.2%)
+SuperMicro                   1 (3.2%)
+========================= ==== =======