From 4a038d7fce0f52803bfc08bc21b44e5f3a845812 Mon Sep 17 00:00:00 2001
From: Kumar Gala <kumar.gala@linaro.org>
Date: Fri, 7 Dec 2018 12:26:06 -0600
Subject: [PATCH] dts: Add binding for NXP i.MX RT itcm/dtcm memories

Add comptiable into the device tree and associated binding files for NXP
i.MX RT ITCM/DTCM memory regions.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
---
 dts/arm/nxp/nxp_rt.dtsi               |  3 +++
 dts/bindings/arm/nxp,imx-rt-dtcm.yaml | 26 ++++++++++++++++++++++++++
 dts/bindings/arm/nxp,imx-rt-itcm.yaml | 26 ++++++++++++++++++++++++++
 3 files changed, 55 insertions(+)
 create mode 100644 dts/bindings/arm/nxp,imx-rt-dtcm.yaml
 create mode 100644 dts/bindings/arm/nxp,imx-rt-itcm.yaml

diff --git a/dts/arm/nxp/nxp_rt.dtsi b/dts/arm/nxp/nxp_rt.dtsi
index 26dbfa75830..7b9d6ec5423 100644
--- a/dts/arm/nxp/nxp_rt.dtsi
+++ b/dts/arm/nxp/nxp_rt.dtsi
@@ -30,14 +30,17 @@
 			#size-cells = <1>;
 
 			itcm0: itcm@0 {
+				compatible = "nxp,imx-rt-itcm";
 				reg = <0x00000000 0x20000>;
 			};
 
 			dtcm0: dtcm@20000000 {
+				compatible = "nxp,imx-rt-dtcm";
 				reg = <0x20000000 0x20000>;
 			};
 
 			ocram0: ocram@20200000 {
+				compatible = "mmio-sram";
 				reg = <0x20200000 0x40000>;
 			};
 		};
diff --git a/dts/bindings/arm/nxp,imx-rt-dtcm.yaml b/dts/bindings/arm/nxp,imx-rt-dtcm.yaml
new file mode 100644
index 00000000000..59774eb214b
--- /dev/null
+++ b/dts/bindings/arm/nxp,imx-rt-dtcm.yaml
@@ -0,0 +1,26 @@
+#
+# Copyright (c) 2018, Linaro Limited
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+---
+title: i.MX RT DTCM (Data Tightly Coupled Memory)
+version: 0.1
+
+description: >
+  This binding gives a base representation of the i.MX-RT DTCM
+
+properties:
+    compatible:
+      type: string
+      category: required
+      constraint: "nxp,imx-rt-dtcm"
+      generation: define
+
+    reg:
+      type: int
+      description: mmio register space
+      generation: define
+      category: required
+
+...
diff --git a/dts/bindings/arm/nxp,imx-rt-itcm.yaml b/dts/bindings/arm/nxp,imx-rt-itcm.yaml
new file mode 100644
index 00000000000..35aeb2e9e1a
--- /dev/null
+++ b/dts/bindings/arm/nxp,imx-rt-itcm.yaml
@@ -0,0 +1,26 @@
+#
+# Copyright (c) 2018, Linaro Limited
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+---
+title: i.MX RT ITCM (Instruction Tightly Coupled Memory)
+version: 0.1
+
+description: >
+  This binding gives a base representation of the i.MX-RT ITCM
+
+properties:
+    compatible:
+      type: string
+      category: required
+      constraint: "nxp,imx-rt-itcm"
+      generation: define
+
+    reg:
+      type: int
+      description: mmio register space
+      generation: define
+      category: required
+
+...