initial buildroot for linux 5.15

package/optee-examples/Config.in

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+config BR2_PACKAGE_OPTEE_EXAMPLES
+	bool "optee-examples"
+	depends on BR2_TARGET_OPTEE_OS
+	depends on BR2_TOOLCHAIN_HAS_THREADS # optee-client
+	depends on !BR2_STATIC_LIBS # optee-client
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3 # optee-client
+	select BR2_PACKAGE_OPTEE_CLIENT
+	select BR2_TARGET_OPTEE_OS_SDK
+	help
+	  Enable the OP-TEE examples package that brings examples of
+	  implementation of OP-TEE non-secure client applications and
+	  secure trusted applications. OP-TEE examples is a
+	  component delivered by the OP-TEE project.
+
+	  Trusted application binary files are installed in the target
+	  directory /lib/optee_armtz as other trusted applications.
+	  At runtime OP-TEE OS can load trusted applications from this
+	  non-secure filesystem/directory into the secure world for
+	  execution.
+
+	  https://github.com/linaro-swg/optee_examples
+
+comment "optee-examples needs a toolchain w/ threads, dynamic library, headers >= 4.3"
+	depends on BR2_TARGET_OPTEE_OS
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || BR2_STATIC_LIBS || \
+		!BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3

package/optee-examples/optee-examples.hash

@@ -0,0 +1,4 @@
+# From https://github.com/linaro-swg/optee_examples/archive/3.15.0/optee-examples-3.15.0.tar.gz
+sha256 9770827292eea85068913077d3406070f6182389779c5d4a5c0876bffd962353  optee-examples-3.15.0.tar.gz
+# Locally computed
+sha256 6f1ef8449cb82ae79d2155605f7985bdf0f08e7ab5007de9b4362e8bf28733b9  LICENSE

package/optee-examples/optee-examples.mk

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+################################################################################
+#
+# optee-examples
+#
+################################################################################
+
+OPTEE_EXAMPLES_VERSION = 3.15.0
+OPTEE_EXAMPLES_SITE = $(call github,linaro-swg,optee_examples,$(OPTEE_EXAMPLES_VERSION))
+OPTEE_EXAMPLES_LICENSE = BSD-2-Clause
+OPTEE_EXAMPLES_LICENSE_FILES = LICENSE
+
+OPTEE_EXAMPLES_DEPENDENCIES = optee-client optee-os
+
+# Trusted Application are not built from CMake due to ta_dev_kit dependencies.
+# We must build and install them on target.
+define OPTEE_EXAMPLES_BUILD_TAS
+	$(foreach f,$(wildcard $(@D)/*/ta/Makefile), \
+		$(TARGET_CONFIGURE_OPTS) \
+		$(MAKE) CROSS_COMPILE=$(TARGET_CROSS) \
+			TA_DEV_KIT_DIR=$(OPTEE_OS_SDK) \
+			O=out -C $(dir $f) all
+	)
+endef
+define OPTEE_EXAMPLES_INSTALL_TAS
+	@mkdir -p $(TARGET_DIR)/lib/optee_armtz
+	@$(INSTALL) -D -m 444 -t $(TARGET_DIR)/lib/optee_armtz $(@D)/*/ta/out/*.ta
+endef
+OPTEE_EXAMPLES_POST_BUILD_HOOKS += OPTEE_EXAMPLES_BUILD_TAS
+OPTEE_EXAMPLES_POST_INSTALL_TARGET_HOOKS += OPTEE_EXAMPLES_INSTALL_TAS
+
+$(eval $(cmake-package))