Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 27 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/interrupt-controller/marvell,gicp.txt b/Documentation/devicetree/bindings/interrupt-controller/marvell,gicp.txt
new file mode 100644
index 000000000..64a00ceb7
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/marvell,gicp.txt
@@ -0,0 +1,27 @@
+Marvell GICP Controller
+-----------------------
+
+GICP is a Marvell extension of the GIC that allows to trigger GIC SPI
+interrupts by doing a memory transaction. It is used by the ICU
+located in the Marvell CP110 to turn wired interrupts inside the CP
+into GIC SPI interrupts.
+
+Required properties:
+
+- compatible: Must be "marvell,ap806-gicp"
+
+- reg: Must be the address and size of the GICP SPI registers
+
+- marvell,spi-ranges: tuples of GIC SPI interrupts ranges available
+  for this GICP
+
+- msi-controller: indicates that this is an MSI controller
+
+Example:
+
+gicp_spi: gicp-spi@3f0040 {
+	compatible = "marvell,ap806-gicp";
+	reg = <0x3f0040 0x10>;
+	marvell,spi-ranges = <64 64>, <288 64>;
+	msi-controller;
+};