79 lines
2.5 KiB
Makefile
79 lines
2.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0+
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#
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# Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
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# Lokesh Vutla <lokeshvutla@ti.com>
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ifdef CONFIG_SPL_BUILD
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# Openssl is required to generate x509 certificate.
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# Error out if openssl is not available.
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ifeq ($(shell which openssl),)
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$(error "No openssl in $(PATH), consider installing openssl")
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endif
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SHA_VALUE= $(shell openssl dgst -sha512 -hex $(obj)/u-boot-spl.bin | sed -e "s/^.*= //g")
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IMAGE_SIZE= $(shell cat $(obj)/u-boot-spl.bin | wc -c)
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LOADADDR= $(shell echo $(CONFIG_SPL_TEXT_BASE) | sed -e "s/^0x//g")
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MAX_SIZE= $(shell printf "%d" $(CONFIG_SYS_K3_MAX_DOWNLODABLE_IMAGE_SIZE))
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# Parameters to get populated into the x509 template
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SED_OPTS= -e s/TEST_IMAGE_LENGTH/$(IMAGE_SIZE)/
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SED_OPTS+= -e s/TEST_IMAGE_SHA_VAL/$(SHA_VALUE)/
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SED_OPTS+= -e s/TEST_CERT_TYPE/1/ # CERT_TYPE_PRIMARY_IMAGE_BIN
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SED_OPTS+= -e s/TEST_BOOT_CORE/$(CONFIG_SYS_K3_BOOT_CORE_ID)/
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SED_OPTS+= -e s/TEST_BOOT_ARCH_WIDTH/32/
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SED_OPTS+= -e s/TEST_BOOT_ADDR/$(LOADADDR)/
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# Command to generate ecparam key
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quiet_cmd_genkey = OPENSSL $@
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cmd_genkey = openssl ecparam -out $@ -name prime256v1 -genkey
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# Command to generate x509 certificate
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quiet_cmd_gencert = OPENSSL $@
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cmd_gencert = cat $(srctree)/tools/k3_x509template.txt | sed $(SED_OPTS) > u-boot-spl-x509.txt; \
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openssl req -new -x509 -key $(KEY) -nodes -outform DER -out $@ -config u-boot-spl-x509.txt -sha512
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# If external key is not provided, generate key using openssl.
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ifeq ($(CONFIG_SYS_K3_KEY), "")
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KEY=u-boot-spl-eckey.pem
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else
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KEY=$(patsubst "%",$(srctree)/%,$(CONFIG_SYS_K3_KEY))
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endif
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u-boot-spl-eckey.pem: FORCE
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$(call if_changed,genkey)
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# tiboot3.bin is mandated by ROM and ROM only supports R5 boot.
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# So restrict tiboot3.bin creation for CPU_V7R.
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ifdef CONFIG_CPU_V7R
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u-boot-spl-cert.bin: $(KEY) $(obj)/u-boot-spl.bin image_check FORCE
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$(call if_changed,gencert)
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image_check: $(obj)/u-boot-spl.bin FORCE
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@if [ $(IMAGE_SIZE) -gt $(MAX_SIZE) ]; then \
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echo "===============================================" >&2; \
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echo "ERROR: Final Image too big. " >&2; \
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echo "$< size = $(IMAGE_SIZE), max size = $(MAX_SIZE)" >&2; \
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echo "===============================================" >&2; \
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exit 1; \
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fi
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tiboot3.bin: u-boot-spl-cert.bin $(obj)/u-boot-spl.bin FORCE
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$(call if_changed,cat)
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ALL-y += tiboot3.bin
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endif
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ifdef CONFIG_ARM64
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SPL_ITS := u-boot-spl-k3.its
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$(SPL_ITS): FORCE
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$(srctree)/tools/k3_fit_atf.sh \
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$(patsubst %,$(obj)/dts/%.dtb,$(subst ",,$(CONFIG_SPL_OF_LIST))) > $@
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ALL-y += tispl.bin
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endif
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else
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ALL-y += u-boot.img
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endif
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