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authorStewart Smith <stewart@linux.vnet.ibm.com>2016-07-19 17:24:36 +1000
committerStewart Smith <stewart@linux.vnet.ibm.com>2016-07-20 18:52:26 +1000
commit96df49e8f752e30942b0e5e7cd8438173efe1610 (patch)
tree518e9b9937b07bf5d66725ac734a07e20bf750b5 /doc
parenta3cede091945a6b3a76fb828c1bd5a962023e877 (diff)
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device-tree: Only advertise ibm, opal-v3 (not v2) on POWER9 and above
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'doc')
-rw-r--r--doc/device-tree/ibm,opal.txt1
-rw-r--r--doc/opal-api/power9-changes.txt6
2 files changed, 6 insertions, 1 deletions
diff --git a/doc/device-tree/ibm,opal.txt b/doc/device-tree/ibm,opal.txt
index d4dcfb8..3b90b5b 100644
--- a/doc/device-tree/ibm,opal.txt
+++ b/doc/device-tree/ibm,opal.txt
@@ -5,6 +5,7 @@
; v2 is maintained for possible compatibility with very, very old kernels
; it will go away at some point in the future. Detect and rely on ibm,opal-v3
+; ibm,opal-v2 is *NOT* present on POWER9 and above.
ibm,associativity-reference-points = <0x4 0x3>;
ibm,heartbeat-ms = <0x7d0>;
diff --git a/doc/opal-api/power9-changes.txt b/doc/opal-api/power9-changes.txt
index cf354d6..4db74b0 100644
--- a/doc/opal-api/power9-changes.txt
+++ b/doc/opal-api/power9-changes.txt
@@ -15,11 +15,15 @@ OPAL_REINIT_CPUS
Can now be extended beyond HILE BE/LE bits. If invalid flags are set on
POWER9, OPAL_UNSUPPORTED will be returned.
+Device Tree
+-----------
+- /ibm,opal/ compatible property now just lists ibm,opal-v3 and no longer
+ ibm,opal-v2 (power9 and above only)
+
TODO
----
Things we still have to do for POWER9:
-- remove opal-v2 from compatible string.
- PCI to use async API rather than returning delays
- deprecate/remove v1 APIs where there's a V2
- Fix this FWTS warning: