[PATCH 2/2] dts: ARM: stm32mp15: add OP-TEE node in u-boot DTSI

[Patrick Delaunay]

From: Etienne Carriere <etienne.carriere at linaro.org>

Add OP-TEE firmware node in stm32mp15 U-Boot DTSI. This node is
needed since commit [1] that changed U-Boot/stm32mp15 to detect
OP-TEE availability by probing the resource instead of relying on
U-Boot configuration. The software sequence implemented by [1] is
fine but U-Boot DTS/DTSI files were not updated accordingly since,
hence OP-TEE presence is never detected by U-Boot, preventing Linux
kernel from using OP-TEE resources.

For consistency and to synchronize stm32mp15 DTSI files (excluding
U-Boot specific DTSI files) with the Linux kernel ones, this change
also moves the OP-TEE reserved memory nodes from board generic DTSI
files to U-Boot specific board DTSI files.

Link: [1] commit 43df0a159df6 ("stm32mp1: dynamically detect op-tee presence")
Signed-off-by: Etienne Carriere <etienne.carriere at linaro.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
---

 arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi | 15 +++++++++++++++
 arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi | 14 ++++++++++++++
 arch/arm/dts/stm32mp157c-ed1.dts         |  5 -----
 arch/arm/dts/stm32mp15xx-dkx.dtsi        |  5 -----
 4 files changed, 29 insertions(+), 10 deletions(-)

diff --git a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
index c52abeb1e7..3fedb6f1e1 100644
--- a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
@@ -20,6 +20,21 @@
 		st,fastboot-gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
 		st,stm32prog-gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;
 	};
+
+	firmware {
+		optee {
+			compatible = "linaro,optee-tz";
+			method = "smc";
+		};
+	};
+
+	reserved-memory {
+		optee at de000000 {
+			reg = <0xde000000 0x02000000>;
+			no-map;
+		};
+	};
+
 	led {
 		red {
 			label = "error";
diff --git a/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
index 84af7fa47b..a07c585415 100644
--- a/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
@@ -21,6 +21,20 @@
 		st,stm32prog-gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;
 	};
 
+	firmware {
+		optee {
+			compatible = "linaro,optee-tz";
+			method = "smc";
+		};
+	};
+
+	reserved-memory {
+		optee at fe000000 {
+			reg = <0xfe000000 0x02000000>;
+			no-map;
+		};
+	};
+
 	led {
 		red {
 			label = "error";
diff --git a/arch/arm/dts/stm32mp157c-ed1.dts b/arch/arm/dts/stm32mp157c-ed1.dts
index 4fb71100f5..186dc46754 100644
--- a/arch/arm/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/dts/stm32mp157c-ed1.dts
@@ -70,11 +70,6 @@
 			reg = <0xe8000000 0x8000000>;
 			no-map;
 		};
-
-		optee at fe000000 {
-			reg = <0xfe000000 0x02000000>;
-			no-map;
-		};
 	};
 
 	aliases {
diff --git a/arch/arm/dts/stm32mp15xx-dkx.dtsi b/arch/arm/dts/stm32mp15xx-dkx.dtsi
index 812e370ee4..7589c6f9dc 100644
--- a/arch/arm/dts/stm32mp15xx-dkx.dtsi
+++ b/arch/arm/dts/stm32mp15xx-dkx.dtsi
@@ -58,11 +58,6 @@
 			reg = <0xd4000000 0x4000000>;
 			no-map;
 		};
-
-		optee at de000000 {
-			reg = <0xde000000 0x02000000>;
-			no-map;
-		};
 	};
 
 	led {
-- 
2.17.1