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authorOlof Johansson <olof@lixom.net>2011-12-17 20:05:50 -0800
committerOlof Johansson <olof@lixom.net>2011-12-17 20:05:50 -0800
commitd695cfa54e9ec48aeb149cadc8dab1240751572a (patch)
tree503d342f303181c4a8e4fb89e070117d5760c513 /Documentation
parentc3e00a0eff4c05717915ac7a8e4646db3882aebf (diff)
parent3bdc3484e8f2b1b219ad0397d81ce4601fbaf76d (diff)
Merge remote-tracking branch 'rmk/devel-stable' into for-3.3/soc
Conflicts: arch/arm/mach-tegra/board-dt.c Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/arm/memory.txt11
-rw-r--r--Documentation/devicetree/bindings/arm/gic.txt4
-rw-r--r--Documentation/devicetree/bindings/arm/vic.txt29
3 files changed, 38 insertions, 6 deletions
diff --git a/Documentation/arm/memory.txt b/Documentation/arm/memory.txt
index 771d48d3b335..208a2d465b92 100644
--- a/Documentation/arm/memory.txt
+++ b/Documentation/arm/memory.txt
@@ -51,15 +51,14 @@ ffc00000 ffefffff DMA memory mapping region. Memory returned
ff000000 ffbfffff Reserved for future expansion of DMA
mapping region.
-VMALLOC_END feffffff Free for platform use, recommended.
- VMALLOC_END must be aligned to a 2MB
- boundary.
-
VMALLOC_START VMALLOC_END-1 vmalloc() / ioremap() space.
Memory returned by vmalloc/ioremap will
be dynamically placed in this region.
- VMALLOC_START may be based upon the value
- of the high_memory variable.
+ Machine specific static mappings are also
+ located here through iotable_init().
+ VMALLOC_START is based upon the value
+ of the high_memory variable, and VMALLOC_END
+ is equal to 0xff000000.
PAGE_OFFSET high_memory-1 Kernel direct-mapped RAM region.
This maps the platforms RAM, and typically
diff --git a/Documentation/devicetree/bindings/arm/gic.txt b/Documentation/devicetree/bindings/arm/gic.txt
index 52916b4aa1fe..9b4b82a721b6 100644
--- a/Documentation/devicetree/bindings/arm/gic.txt
+++ b/Documentation/devicetree/bindings/arm/gic.txt
@@ -42,6 +42,10 @@ Optional
- interrupts : Interrupt source of the parent interrupt controller. Only
present on secondary GICs.
+- cpu-offset : per-cpu offset within the distributor and cpu interface
+ regions, used when the GIC doesn't have banked registers. The offset is
+ cpu-offset * cpu-nr.
+
Example:
intc: interrupt-controller@fff11000 {
diff --git a/Documentation/devicetree/bindings/arm/vic.txt b/Documentation/devicetree/bindings/arm/vic.txt
new file mode 100644
index 000000000000..266716b23437
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/vic.txt
@@ -0,0 +1,29 @@
+* ARM Vectored Interrupt Controller
+
+One or more Vectored Interrupt Controllers (VIC's) can be connected in an ARM
+system for interrupt routing. For multiple controllers they can either be
+nested or have the outputs wire-OR'd together.
+
+Required properties:
+
+- compatible : should be one of
+ "arm,pl190-vic"
+ "arm,pl192-vic"
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : The number of cells to define the interrupts. Must be 1 as
+ the VIC has no configuration options for interrupt sources. The cell is a u32
+ and defines the interrupt number.
+- reg : The register bank for the VIC.
+
+Optional properties:
+
+- interrupts : Interrupt source for parent controllers if the VIC is nested.
+
+Example:
+
+ vic0: interrupt-controller@60000 {
+ compatible = "arm,pl192-vic";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ reg = <0x60000 0x1000>;
+ };