MLK-11322-01 ARM: dts: imx: add ocram node used for lpm code

Reserve iram space for low power code. The first 16KB space
is used for suspend/resume and cpuidle. Another 4KB space is
for busfreq code.

for i.MX6SX, it has a dedicated ocram space start at 0x8f8000
for low power code.

Signed-off-by: Bai Ping <b51503@freescale.com>

5 files changed, 49 insertions, 7 deletions

diff --git a/arch/arm/boot/dts/imx6dl.dtsi b/arch/arm/boot/dts/imx6dl.dtsi
index 8475e6cc59ac..b308dcbea551 100644
--- a/arch/arm/boot/dts/imx6dl.dtsi
+++ b/arch/arm/boot/dts/imx6dl.dtsi
@@ -60,9 +60,9 @@
 	};
 
 	soc {
-		ocram: sram@00900000 {
+		ocram: sram@00905000 {
 			compatible = "mmio-sram";
-			reg = <0x00900000 0x20000>;
+			reg = <0x00905000 0x1B000>;
 			clocks = <&clks IMX6QDL_CLK_OCRAM>;
 		};
 
diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi
index 4747ede61acd..abb95ae6b15d 100644
--- a/arch/arm/boot/dts/imx6q.dtsi
+++ b/arch/arm/boot/dts/imx6q.dtsi
@@ -79,9 +79,9 @@
 	};
 
 	soc {
-		ocram: sram@00900000 {
+		ocram: sram@00905000 {
 			compatible = "mmio-sram";
-			reg = <0x00900000 0x40000>;
+			reg = <0x00905000 0x3B000>;
 			clocks = <&clks IMX6QDL_CLK_OCRAM>;
 		};
 
diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 8884b4a3cafb..ceafa94e24d7 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -169,6 +169,18 @@
 			power-domains = <&pd_pu>;
 		};
 
+		ocrams: sram@00900000 {
+			compatible = "fsl,lpm-sram";
+			reg = <0x00900000 0x4000>;
+			clocks = <&clks IMX6QDL_CLK_OCRAM>;
+		};
+
+		ocrams_ddr: sram@00904000 {
+			compatible = "fsl,ddr-lpm-sram";
+			reg = <0x00904000 0x1000>;
+			clocks = <&clks IMX6QDL_CLK_OCRAM>;
+		};
+
 		timer@00a00600 {
 			compatible = "arm,cortex-a9-twd-timer";
 			reg = <0x00a00600 0x20>;
diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index 3f76f980947e..52b2ee542ba9 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -109,9 +109,21 @@
 		interrupt-parent = <&gpc>;
 		ranges;
 
-		ocram: sram@00900000 {
+		ocrams: sram@00900000 {
+			compatible = "fsl,lpm-sram";
+			reg = <0x00900000 0x4000>;
+			clocks = <&clks IMX6SL_CLK_OCRAM>;
+		};
+
+		ocrams_ddr: sram@00904000 {
+			compatible = "fsl,ddr-lpm-sram";
+			reg = <0x00904000 0x1000>;
+			clocks = <&clks IMX6SL_CLK_OCRAM>;
+		};
+
+		ocram: sram@00905000 {
 			compatible = "mmio-sram";
-			reg = <0x00900000 0x20000>;
+			reg = <0x00905000 0x1B000>;
 			clocks = <&clks IMX6SL_CLK_OCRAM>;
 		};
 
diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
index d64438bfa68b..4cc0094d3203 100644
--- a/arch/arm/boot/dts/imx6sx.dtsi
+++ b/arch/arm/boot/dts/imx6sx.dtsi
@@ -153,8 +153,26 @@
 			interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
-		ocram: sram@00900000 {
+		ocrams: sram@008f8000 {
+			compatible = "fsl,lpm-sram";
+			reg = <0x008f8000 0x4000>;
+			clocks = <&clks IMX6SX_CLK_OCRAM_S>;
+		};
+
+		ocrams_ddr: sram@00900000 {
+			compatible = "fsl,ddr-lpm-sram";
+			reg = <0x00900000 0x1000>;
+			clocks = <&clks IMX6SX_CLK_OCRAM>;
+		};
+
+		ocram: sram@00901000 {
 			compatible = "mmio-sram";
+			reg = <0x00901000 0x1F000>;
+			clocks = <&clks IMX6SX_CLK_OCRAM>;
+		};
+
+		ocram_mf: sram-mf@00900000 {
+			compatible = "fsl,mega-fast-sram";
 			reg = <0x00900000 0x20000>;
 			clocks = <&clks IMX6SX_CLK_OCRAM>;
 		};