MLK-18036-1 Add "fsl,optee-lpm-sram" node for optee os power management.

This node will be used by the OCRAM driver in optee to:
* Get the OCRAM start address for power management in optee.
* Add an entry that will overwrite ocrams nodes and dynamically reduce
the OCRAM available for mmio-sram in Linux.

That way we do not touch the legacy Linux boot and remove the dedicated
optee device tree.

Signed-off-by: Clement Faure <clement.faure@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>

8 files changed, 63 insertions, 5 deletions

diff --git a/arch/arm/boot/dts/imx6dl.dtsi b/arch/arm/boot/dts/imx6dl.dtsi
index 7a45f9c2bc8d..03fcba6e3222 100644
--- a/arch/arm/boot/dts/imx6dl.dtsi
+++ b/arch/arm/boot/dts/imx6dl.dtsi
@@ -1,6 +1,7 @@
 
 /*
  * Copyright 2013-2015 Freescale Semiconductor, Inc.
+ * Copyright 2018 NXP
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -120,6 +121,12 @@
 			clocks = <&clks IMX6QDL_CLK_OCRAM>;
 		};
 
+		ocram_optee: sram@00918000 {
+			compatible = "fsl,optee-lpm-sram";
+			reg = <0x00918000 0x8000>;
+			overw_reg = <&ocram 0x00905000 0x13000>;
+		};
+
 		aips1: aips-bus@02000000 {
 			iomuxc: iomuxc@020e0000 {
 				compatible = "fsl,imx6dl-iomuxc";
diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi
index 83dab03921bf..4dabb0997aeb 100644
--- a/arch/arm/boot/dts/imx6q.dtsi
+++ b/arch/arm/boot/dts/imx6q.dtsi
@@ -1,6 +1,7 @@
 
 /*
  * Copyright 2013-2015 Freescale Semiconductor, Inc.
+ * Copyright 2018 NXP
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -139,6 +140,12 @@
 			clocks = <&clks IMX6QDL_CLK_OCRAM>;
 		};
 
+		ocram_optee: sram@00938000 {
+			compatible = "fsl,optee-lpm-sram";
+			reg = <0x00938000 0x8000>;
+			overw_reg = <&ocram 0x00905000 0x33000>;
+		};
+
 		aips-bus@02000000 { /* AIPS1 */
 			spba-bus@02000000 {
 				ecspi5: ecspi@02018000 {
diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index a3355e579e7c..4738b2559f82 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -1,5 +1,6 @@
 /*
  * Copyright 2013-2016 Freescale Semiconductor, Inc.
+ * Copyright 2018 NXP
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -176,6 +177,12 @@
 			clocks = <&clks IMX6SL_CLK_OCRAM>;
 		};
 
+		ocram_optee: sram@00918000 {
+			compatible = "fsl,optee-lpm-sram";
+			reg = <0x00918000 0x8000>;
+			overw_reg = <&ocram 0x00905000 0x13000>;
+		};
+
 		L2: l2-cache@00a02000 {
 			compatible = "arm,pl310-cache";
 			reg = <0x00a02000 0x1000>;
diff --git a/arch/arm/boot/dts/imx6sll.dtsi b/arch/arm/boot/dts/imx6sll.dtsi
index d76c363ec5af..8b2e72bf61fe 100644
--- a/arch/arm/boot/dts/imx6sll.dtsi
+++ b/arch/arm/boot/dts/imx6sll.dtsi
@@ -1,6 +1,6 @@
 /*
  * Copyright 2016 Freescale Semiconductor, Inc.
- * Copyright 2017 NXP.
+ * Copyright 2017-2018 NXP
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -167,6 +167,12 @@
 			reg = <0x00905000 0x1B000>;
 		};
 
+		ocram_optee: sram@00918000 {
+			compatible = "fsl,optee-lpm-sram";
+			reg = <0x00918000 0x8000>;
+			overw_reg = <&ocram 0x00905000 0x13000>;
+		};
+
 		L2: l2-cache@00a02000 {
 			compatible = "arm,pl310-cache";
 			reg = <0x00a02000 0x1000>;
@@ -679,7 +685,7 @@
 					     <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>;
 				clocks = <&clks IMX6SLL_CLK_DCP>;
 				clock-names = "dcp";
-			}; 
+			};
 		};
 
 		aips2: aips-bus@02100000 {
diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
index 152926d500e5..78bbfe900e5a 100644
--- a/arch/arm/boot/dts/imx6sx.dtsi
+++ b/arch/arm/boot/dts/imx6sx.dtsi
@@ -1,5 +1,6 @@
 /*
  * Copyright 2014-2016 Freescale Semiconductor, Inc.
+ * Copyright 2018 NXP
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -219,6 +220,15 @@
 			clocks = <&clks IMX6SX_CLK_OCRAM>;
 		};
 
+		ocram_optee {
+			compatible = "fsl,optee-lpm-sram";
+			reg = <0x008f8000 0x4000>;
+			overw_reg = <&ocrams_ddr 0x00904000 0x1000>,
+					<&ocram 0x00905000 0x1b000>,
+					<&ocrams 0x00900000 0x4000>;
+			overw_clock = <&ocrams &clks IMX6SX_CLK_OCRAM>;
+		};
+
 		L2: l2-cache@00a02000 {
 			compatible = "arm,pl310-cache";
 			reg = <0x00a02000 0x1000>;
diff --git a/arch/arm/boot/dts/imx6ul.dtsi b/arch/arm/boot/dts/imx6ul.dtsi
index efe0ea135ca4..6562c256f241 100644
--- a/arch/arm/boot/dts/imx6ul.dtsi
+++ b/arch/arm/boot/dts/imx6ul.dtsi
@@ -1,6 +1,6 @@
 /*
  * Copyright 2015-2016 Freescale Semiconductor, Inc.
- * Copyright 2017 NXP.
+ * Copyright 2017-2018 NXP
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -185,6 +185,12 @@
 			reg = <0x00905000 0x1B000>;
 		};
 
+		ocram_optee: sram@00918000 {
+			compatible = "fsl,optee-lpm-sram";
+			reg = <0x00918000 0x8000>;
+			overw_reg = <&ocram 0x00905000 0x13000>;
+		};
+
 		dma_apbh: dma-apbh@01804000 {
 			compatible = "fsl,imx6q-dma-apbh", "fsl,imx28-dma-apbh";
 			reg = <0x01804000 0x2000>;
diff --git a/arch/arm/boot/dts/imx6ull.dtsi b/arch/arm/boot/dts/imx6ull.dtsi
index d9579de06dba..802ab78b719c 100644
--- a/arch/arm/boot/dts/imx6ull.dtsi
+++ b/arch/arm/boot/dts/imx6ull.dtsi
@@ -1,6 +1,6 @@
 /*
  * Copyright 2016 Freescale Semiconductor, Inc.
- * Copyright 2017 NXP.
+ * Copyright 2017-2018 NXP
  *
  * This file is dual-licensed: you can use it either under the terms
  * of the GPL or the X11 license, at your option. Note that this dual
@@ -217,6 +217,12 @@
 			reg = <0x00905000 0x1B000>;
 		};
 
+		ocram_optee: sram@00918000 {
+			compatible = "fsl,optee-lpm-sram";
+			reg = <0x00918000 0x8000>;
+			overw_reg = <&ocram 0x00905000 0x13000>;
+		};
+
 		dma_apbh: dma-apbh@01804000 {
 			compatible = "fsl,imx6ul-dma-apbh", "fsl,imx28-dma-apbh";
 			reg = <0x01804000 0x2000>;
diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
index 939584bddd04..3b76c80d8b4e 100644
--- a/arch/arm/boot/dts/imx7d.dtsi
+++ b/arch/arm/boot/dts/imx7d.dtsi
@@ -1,7 +1,7 @@
 /*
  * Copyright 2015-2016 Freescale Semiconductor, Inc.
  * Copyright 2016 Toradex AG
- * Copyright 2017 NXP.
+ * Copyright 2017-2018 NXP
  *
  * This file is dual-licensed: you can use it either under the terms
  * of the GPL or the X11 license, at your option. Note that this dual
@@ -160,6 +160,15 @@
 			reg = <0x00900000 0x20000>;
 			clocks = <&clks IMX7D_OCRAM_CLK>;
 		};
+
+		ocram_optee {
+			compatible = "fsl,optee-lpm-sram";
+			reg = <0x00180000 0x8000>;
+			overw_reg = <&ocrams_ddr 0x00904000 0x1000>,
+					<&ocram 0x00905000 0x1b000>,
+					<&ocrams 0x00900000 0x4000>;
+			overw_clock = <&ocrams &clks IMX7D_OCRAM_CLK>;
+		};
 	};
 };