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@@ -0,0 +1,44 @@
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+# SPDX-License-Identifier: GPL-2.0
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+#
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+# Copyright (C) 2018 Texas Instruments, Incorporated - http://www.ti.com/
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+# Andrew F. Davis <afd@ti.com>
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+
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+quiet_cmd_k3secureimg = SECURE $@
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+ifneq ($(TI_SECURE_DEV_PKG),)
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+ifneq ($(wildcard $(TI_SECURE_DEV_PKG)/scripts/secure-binary-image.sh),)
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+cmd_k3secureimg = $(TI_SECURE_DEV_PKG)/scripts/secure-binary-image.sh \
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+ $< $@ \
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+ $(if $(KBUILD_VERBOSE:1=), >/dev/null)
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+else
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+cmd_k3secureimg = echo "WARNING:" \
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+ "$(TI_SECURE_DEV_PKG)/scripts/secure-binary-image.sh not found." \
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+ "$@ was NOT secured!"; cp $< $@
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+endif
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+else
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+cmd_k3secureimg = echo "WARNING: TI_SECURE_DEV_PKG environment" \
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+ "variable must be defined for TI secure devices." \
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+ "$@ was NOT secured!"; cp $< $@
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+endif
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+
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+%.dtb_HS: %.dtb FORCE
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+ $(call if_changed,k3secureimg)
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+
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+$(obj)/u-boot-spl-nodtb.bin_HS: $(obj)/u-boot-spl-nodtb.bin FORCE
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+ $(call if_changed,k3secureimg)
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+
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+tispl.bin_HS: $(obj)/u-boot-spl-nodtb.bin_HS $(patsubst %,$(obj)/dts/%.dtb_HS,$(subst ",,$(CONFIG_SPL_OF_LIST))) $(SPL_ITS) FORCE
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+ $(call if_changed,mkfitimage)
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+
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+MKIMAGEFLAGS_u-boot.img_HS = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
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+ -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_UBOOT_START) \
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+ -n "U-Boot $(UBOOTRELEASE) for $(BOARD) board" -E \
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+ $(patsubst %,-b arch/$(ARCH)/dts/%.dtb_HS,$(subst ",,$(CONFIG_OF_LIST)))
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+
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+OF_LIST_TARGETS = $(patsubst %,arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST)))
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+$(OF_LIST_TARGETS): dtbs
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+
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+u-boot-nodtb.bin_HS: u-boot-nodtb.bin FORCE
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+ $(call if_changed,k3secureimg)
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+
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+u-boot.img_HS: u-boot-nodtb.bin_HS u-boot.img $(patsubst %.dtb,%.dtb_HS,$(OF_LIST_TARGETS)) FORCE
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+ $(call if_changed,mkimage)
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