ARM: dts: stm32: add OP-TEE node and its reserved-memory node for stm…

…32mp157

Adds firmware/optee node and adds a reserved-memory node named
optee for the DDR reserved to OP-TEE.

SoC defines a default disabled OP-TEE node.
DK1 defines a default disabled OP-TEE reserved-memory node.
DK2 enables OP-TEE and its reserved memory.
ED1 defines a default disabled OP-TEE reserved-memory node and
enables OP-TEE node.

Change-Id: I7b5d50a27a2a81b7cb510ae14ee96e975e41bb97
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/linux-stm32/+/148795
Tested-by: Alexandre TORGUE <alexandre.torgue@st.com>
Reviewed-by: Alexandre TORGUE <alexandre.torgue@st.com>

arch/arm/boot/dts/stm32mp157a-dk1.dts

@@ -75,6 +75,12 @@
 			reg = <0xd4000000 0x4000000>;
 			no-map;
 		};
+
+		optee_memory: optee@0xde000000 {
+			reg = <0xde000000 0x02000000>;
+			no-map;
+			status = "disabled";
+		};
 	};
 
 	sram: sram@10050000 {

arch/arm/boot/dts/stm32mp157c-dk2.dts

@@ -165,3 +165,10 @@
 	};
 };
 
+&optee_memory {
+	status = "okay";
+};
+
+&optee {
+	status = "okay";
+};

arch/arm/boot/dts/stm32mp157c-ed1.dts

@@ -68,6 +68,11 @@
 			reg = <0xe8000000 0x8000000>;
 			no-map;
 		};
+
+		optee_memory: optee@0xfe000000 {
+			reg = <0xfe000000 0x02000000>;
+			no-map;
+		};
 	};
 
 	sram: sram@10050000 {
@@ -386,3 +391,7 @@
 &usbphyc_port1 {
 	phy-supply = <&vdd_usb>;
 };
+
+&optee {
+	status = "okay";
+};

arch/arm/boot/dts/stm32mp157c.dtsi

@@ -1787,4 +1787,12 @@
 			};
 		};
 	};
+
+	firmware {
+		optee: optee {
+			compatible = "linaro,optee-tz";
+			method = "smc";
+			status = "disabled";
+		};
+	};
 };