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Diffstat (limited to 'Documentation/devicetree/bindings/arm/gic.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/arm/gic.txt | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/arm/gic.txt b/Documentation/devicetree/bindings/arm/gic.txt index 8112d0c3675a..c97484b73e72 100644 --- a/Documentation/devicetree/bindings/arm/gic.txt +++ b/Documentation/devicetree/bindings/arm/gic.txt @@ -32,12 +32,16 @@ Main node required properties: The 3rd cell is the flags, encoded as follows: bits[3:0] trigger type and level flags. 1 = low-to-high edge triggered - 2 = high-to-low edge triggered + 2 = high-to-low edge triggered (invalid for SPIs) 4 = active high level-sensitive - 8 = active low level-sensitive + 8 = active low level-sensitive (invalid for SPIs). bits[15:8] PPI interrupt cpu mask. Each bit corresponds to each of the 8 possible cpus attached to the GIC. A bit set to '1' indicated the interrupt is wired to that CPU. Only valid for PPI interrupts. + Also note that the configurability of PPI interrupts is IMPLEMENTATION + DEFINED and as such not guaranteed to be present (most SoC available + in 2014 seem to ignore the setting of this flag and use the hardware + default value). - reg : Specifies base physical address(s) and size of the GIC registers. The first region is the GIC distributor register base and size. The 2nd region is |