[Skiboot] [PATCH] Document changes to how firmware versions are passed to host on P9

Stewart Smith stewart at linux.vnet.ibm.com
Tue Jul 19 17:28:51 AEST 2016

We won't do mi-version/ml-version, but we will always have version.

Signed-off-by: Stewart Smith <stewart at linux.vnet.ibm.com>
 doc/device-tree/ibm,opal/firmware.txt | 4 +++-
 doc/opal-api/power9-changes.txt       | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/doc/device-tree/ibm,opal/firmware.txt b/doc/device-tree/ibm,opal/firmware.txt
index eab497058be4..3376fba86f37 100644
--- a/doc/device-tree/ibm,opal/firmware.txt
+++ b/doc/device-tree/ibm,opal/firmware.txt
@@ -18,11 +18,13 @@ firmware {
 'symbol-map' property describes OPAL symbol start address and size.
 'version' property describes OPAL version. Replaces 'git-id', so may
-not be present.
+not be present. On POWER9 and above, it is always present.
 'mi-version' property describes Microcode Image. Only on IBM FSP systems.
+Will (likely) not be present on POWER9 systems.
 'ml-version' property describes Microcode Level. Only on IBM FSP systems.
+Will (likely) not be present on POWER9 systems.
 MI/ML format:
  <ML/MI> <T side version> <P side version> <boot side version>
diff --git a/doc/opal-api/power9-changes.txt b/doc/opal-api/power9-changes.txt
index cf354d60ac63..b4cf8d66e484 100644
--- a/doc/opal-api/power9-changes.txt
+++ b/doc/opal-api/power9-changes.txt
@@ -26,3 +26,4 @@ Things we still have to do for POWER9:
   FAILED [MEDIUM] DeviceTreeBaseDTCWarnings: Test 3, dtc reports warnings from
   device tree: Warning (reg_format): "reg" property in /ibm,opal/flash at 0 has
   invalid length (8 bytes) (#address-cells == 0, #size-cells == 0)
+- Remove mi-version / ml-version from /ibm,opal/firmware and replace with something better and more portable

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