[PATCH v4 1/2] arm: dts: omap4+: Add DMM bindings

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Add Dynamic Memory Manager (DMM) bindings for OMAP4 and OMAP5 devices. DMM
only requires address and irq information.

Add documentation for the DMM bindings.

Originally worked on by Andy Gross <andygro@xxxxxxxxx>

Cc: Andy Gross <andygro@xxxxxxxxx>
Signed-off-by: Archit Taneja <archit@xxxxxx>
---
 Documentation/devicetree/bindings/arm/omap/dmm.txt | 22 ++++++++++++++++++++++
 arch/arm/boot/dts/omap4.dtsi                       |  7 +++++++
 arch/arm/boot/dts/omap5.dtsi                       |  7 +++++++
 3 files changed, 36 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/omap/dmm.txt

diff --git a/Documentation/devicetree/bindings/arm/omap/dmm.txt b/Documentation/devicetree/bindings/arm/omap/dmm.txt
new file mode 100644
index 0000000..8bd6d0a
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/omap/dmm.txt
@@ -0,0 +1,22 @@
+OMAP Dynamic Memory Manager (DMM) bindings
+
+The dynamic memory manager (DMM) is a module located immediately in front of the
+SDRAM controllers (called EMIFs on OMAP). DMM manages various aspects of memory
+accesses such as priority generation amongst initiators, configuration of SDRAM
+interleaving, optimizing transfer of 2D block objects, and provide MMU-like page
+translation for initiators which need contiguous dma bus addresses.
+
+Required properties:
+- compatible:	Should contain "ti,omap4-dmm" for OMAP4 family
+		Should contain "ti,omap5-dmm" for OMAP5 and DRA7x family
+- reg:		Contains DMM register address range (base address and length)
+- interrupts:	Should contain an interrupt-specifier for DMM_IRQ.
+- ti,hwmods:	Name of the hwmod associated to DMM, which is typically "dmm"
+
+Example:
+
+dmm@4e000000 {
+	compatible = "ti,omap4-dmm";
+	reg = <0x4e000000 0x800>;
+	ti,hwmods = "dmm";
+};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 22d9f2b..b6bf288 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -487,6 +487,13 @@
 			ti,hwmods = "kbd";
 		};
 
+		dmm@4e000000 {
+			compatible = "ti,omap4-dmm";
+			reg = <0x4e000000 0x800>;
+			interrupts = <0 113 0x4>;
+			ti,hwmods = "dmm";
+		};
+
 		emif1: emif@4c000000 {
 			compatible = "ti,emif-4d";
 			reg = <0x4c000000 0x100>;
diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 7cdea1b..e405458 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -604,6 +604,13 @@
 			ti,hwmods = "wd_timer2";
 		};
 
+		dmm@4e000000 {
+			compatible = "ti,omap5-dmm";
+			reg = <0x4e000000 0x800>;
+			interrupts = <0 113 0x4>;
+			ti,hwmods = "dmm";
+		};
+
 		emif1: emif@0x4c000000 {
 			compatible	= "ti,emif-4d5";
 			ti,hwmods	= "emif1";
-- 
1.8.1.2

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