arm: imx8m: add OP-TEE node
Add tee node in SoC u-boot device trees. Use a kconfig entry to specify
load and entry addresses for the op-tee image in the respective
defconfig.
Default IMX8M_OPTEE_LOAD_ADDR is supplied. To keep it simple, the same
addresses are used for each SoC as are defined in upstream tf-a
(BL32_BASE) [1].
[1] https://github.com/ARM-software/arm-trusted-firmware/tree/master/plat/imx/imx8m
Signed-off-by: Yannic Moog <y.moog@phytec.de>
diff --git a/arch/arm/dts/imx8mp-u-boot.dtsi b/arch/arm/dts/imx8mp-u-boot.dtsi
index 56749cc..9ede98a 100644
--- a/arch/arm/dts/imx8mp-u-boot.dtsi
+++ b/arch/arm/dts/imx8mp-u-boot.dtsi
@@ -185,6 +185,21 @@
};
#endif
+ tee: tee {
+ description = "OP-TEE";
+ type = "tee";
+ arch = "arm64";
+ compression = "none";
+ os = "tee";
+ load = <CONFIG_IMX8M_OPTEE_LOAD_ADDR>;
+ entry = <CONFIG_IMX8M_OPTEE_LOAD_ADDR>;
+
+ tee-os {
+ filename = "tee.bin";
+ optional;
+ };
+ };
+
@fdt-SEQ {
description = "NAME";
type = "flat_dt";
@@ -204,7 +219,7 @@
fdt = "fdt-SEQ";
firmware = "uboot";
#ifndef CONFIG_ARMV8_PSCI
- loadables = "atf";
+ loadables = "atf", "tee";
#endif
};
};