These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / arm / l2cc.txt

diff --git a/kernel/Documentation/devicetree/bindings/arm/l2cc.txt b/kernel/Documentation/devicetree/bindings/arm/l2cc.txt
index 0dbabe9..06c88a4 100644 (file)
--- a/kernel/Documentation/devicetree/bindings/arm/l2cc.txt
+++ b/kernel/Documentation/devicetree/bindings/arm/l2cc.txt
@@ -67,6 +67,17 @@ Optional properties:
   disable if zero.
 - arm,prefetch-offset : Override prefetch offset value. Valid values are
   0-7, 15, 23, and 31.
+- arm,shared-override : The default behavior of the pl310 cache controller with
+  respect to the shareable attribute is to transform "normal memory
+  non-cacheable transactions" into "cacheable no allocate" (for reads) or
+  "write through no write allocate" (for writes).
+  On systems where this may cause DMA buffer corruption, this property must be
+  specified to indicate that such transforms are precluded.
+- prefetch-data : Data prefetch. Value: <0> (forcibly disable), <1>
+  (forcibly enable), property absent (retain settings set by firmware)
+- prefetch-instr : Instruction prefetch. Value: <0> (forcibly disable),
+  <1> (forcibly enable), property absent (retain settings set by
+  firmware)
 
 Example: