initial buildroot for linux 5.15

package/sam-ba/Config.in.host

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+config BR2_PACKAGE_HOST_SAM_BA
+	bool "host sam-ba"
+	depends on BR2_HOSTARCH = "x86_64"
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	help
+	  Atmel SAM-BA software provides an open set of tools for
+	  programming the Atmel SAM3, SAM7 and SAM9 ARM-based
+	  microcontrollers.
+
+	  http://www.at91.com/linux4sam/bin/view/Linux4SAM/SoftwareTools
+	  https://www.microchip.com/en-us/development-tool/SAM-BA-IN-SYSTEM-PROGRAMMER

package/sam-ba/sam-ba.hash

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+# sha256 locally computed
+sha256  f66e431f0401b197e80599156ea93aa3aab050bc4d16523c95fae1107ef9101c  sam-ba_3.5-linux_x86_64.tar.gz
+sha256  8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643  LICENSE.txt

package/sam-ba/sam-ba.mk

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+################################################################################
+#
+# sam-ba
+#
+################################################################################
+
+SAM_BA_VERSION = 3.5
+SAM_BA_SITE = https://www.microchip.com/content/dam/mchp/documents/MPU32/ProductDocuments/SoftwareTools
+SAM_BA_SOURCE = sam-ba_$(SAM_BA_VERSION)-linux_x86_64.tar.gz
+SAM_BA_LICENSE = GPLv2
+SAM_BA_LICENSE_FILES = LICENSE.txt
+
+# Since it's a prebuilt application and it does not conform to the
+# usual Unix hierarchy, we install it in $(HOST_DIR)/opt/sam-ba and
+# then create a symbolic link from $(HOST_DIR)/bin to the
+# application binary, for easier usage.
+
+define HOST_SAM_BA_INSTALL_CMDS
+	mkdir -p $(HOST_DIR)/opt/sam-ba/
+	cp -a $(@D)/* $(HOST_DIR)/opt/sam-ba/
+	mkdir -p $(HOST_DIR)/bin/
+	ln -sf ../opt/sam-ba/sam-ba $(HOST_DIR)/bin/sam-ba
+endef
+
+$(eval $(host-generic-package))