heads/modules/coreboot

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ifeq "$(CONFIG_COREBOOT)" "y"
CONFIG_COREBOOT_ROM ?= coreboot.rom
CONFIG_COREBOOT_BOOTBLOCK ?=
ifeq "$(CONFIG_TARGET_ARCH)" "x86"
COREBOOT_TARGET := i386
LINUX_IMAGE_FILE := bzImage
COREBOOT_TARGET_CROSS :=
else ifeq "$(CONFIG_TARGET_ARCH)" "ppc64"
COREBOOT_TARGET := ppc64
LINUX_IMAGE_FILE := zImage
# skiboot payload needs the Heads toolchain as it is little-endian (like
# Linux), but coreboot is big-endian on PPC64.
COREBOOT_TARGET_CROSS := CROSS=$(CROSS)
else
$(error "$(CONFIG_TARGET_ARCH) target is not supported by this module")
endif
# Each coreboot version is defined as a separate module, but only the needed
# modules become dependencies of the current board. One coreboot version is
# selected for the toolchain build and firmware build. These can be the same
# (when using a coreboot release) or different (when using a fork that reuses a
# release's toolchain).
# Define a coreboot module. Parameters:
# $1 - module version
# $2 - toolchain coreboot version - if nonempty, uses the toolchain from this
# version (use for forks to avoid building extra copies of the same
# toolchain)
#
# For a coreboot release:
# - the version is the coreboot release version
# - set coreboot-<version>_hash to the tarball hash
# - set coreboot-blobs-<version>_hash to the blobs tarball hash
#
# For a git fork:
# - the version is the name of the fork (just controls the build directory used)
# - set coreboot-<version>_repo to the git repo address
# - set coreboot-<version>_commit_hash to the git commit
define coreboot_module =
coreboot-$(1)_version := $(1)
coreboot-$(1)_module_file := coreboot
coreboot-$(1)_base_dir := coreboot-$(1)
coreboot-$(1)_dir := coreboot-$(1)/$(BOARD)
coreboot-$(1)_toolchain := $(2)
# These are ignored if this version is a git fork
coreboot-$(1)_tar := coreboot-$(1).tar.xz
coreboot-$(1)_url := https://www.coreboot.org/releases/coreboot-$(1).tar.xz
# These are only used for releases, git forks don't use upstream blobs
coreboot-blobs-$(1)_version := $(1)
coreboot-blobs-$(1)_module_file := coreboot
coreboot-blobs-$(1)_dir := coreboot-$(1)/3rdparty
coreboot-blobs-$(1)_tar := coreboot-blobs-$(1).tar.xz
coreboot-blobs-$(1)_url := https://www.coreboot.org/releases/coreboot-blobs-$(1).tar.xz
coreboot-blobs-$(1)_tar_opt := --strip 2
endef
# coreboot releases
coreboot-4.11_hash := 97fd859b4c39a25534fe33c30eb86e54a233952e08a024c55858d11598a8ad87
coreboot-blobs-4.11_hash := aa7855c5bd385b3360dadc043ea6bc93f564e6e4840d9b3ee5b9e696bbd055db
$(eval $(call coreboot_module,4.11,))
# The coreboot 4.11 toolchain disables the Ada compiler. None of the 4.11 boards need
# libgfxinit, and the old Ada compiler no longer compiles with the Debian 12 host toolchain.
coreboot-4.11_toolchain_build_args := BUILD_LANGUAGES=c
coreboot-4.20.1_hash := b41539a8c2eab2fec752157eb4acbd0e2a637a7203530c12e66b43a5c3c3a931
coreboot-blobs-4.20.1_hash := 30f9d8618e78d483d0903976982485e70825ca3469efd17902c9246aaefd7c4a
$(eval $(call coreboot_module,4.20.1,))
coreboot-4.22.01_hash := 3d1a36dfb2a654133c7f36cf4da436f0d79f535644069adfe7cdcad962532c3f
coreboot-blobs-4.22.01_hash := 4bb98f1a1cc8b3c7004a1d720462bfff0fe34a9106163df2708b952bddfc5203
$(eval $(call coreboot_module,4.22.01,))
# coreboot git forks
# talos_2 could use the 4.20.1 toolchain, but it's the only ppc64 fork, so
# there is no point preparing another coreboot module that won't be shared with
# anything.
coreboot-talos_2_repo := https://github.com/Dasharo/coreboot
coreboot-talos_2_commit_hash := fc47236e9877f4113dfcce07fa928f52d4d2c8ee
$(eval $(call coreboot_module,talos_2,))
# Similarly, purism is based on 4.21, but nothing builds against 4.21 itself
# or any other fork - no benefit to sharing the toolchain yet.
coreboot-purism_repo := https://source.puri.sm/firmware/coreboot.git
coreboot-purism_commit_hash := 0d57cff58fba2f3a4d3a714a4eae65753e58c6ff
$(eval $(call coreboot_module,purism,))
#Nitrokey nv41/ns50 are based on Dasharo coreboot port,
# with patches staging under coreboot-clevo_release
coreboot-nitrokey_repo := https://github.com/dasharo/coreboot
coreboot-nitrokey_commit_hash := a1787afa6b3bf4d3b201cfdbe2ef69623072afa5
coreboot-nitrokey_patch_version := clevo_release
#We use clevo_release's crossgcc for now, unshared but between nitropad nv41/ns50
$(eval $(call coreboot_module,nitrokey,))
# Check that the board configured the coreboot version correctly
ifeq "$(CONFIG_COREBOOT_VERSION)" ""
$(error "$(BOARD): does not specify coreboot version under CONFIG_COREBOOT_VERSION")
else ifeq "$(coreboot-$(CONFIG_COREBOOT_VERSION)_dir)" ""
$(error "$(BOARD): coreboot version $(CONFIG_COREBOOT_VERSION) not known")
endif
coreboot_module := coreboot-$(CONFIG_COREBOOT_VERSION)
modules-y += $(coreboot_module)
# Don't make everyone type $($(coreboot_module)_dir)
coreboot_dir := $($(coreboot_module)_dir)
coreboot_base_dir := $($(coreboot_module)_base_dir)
$(coreboot_module)_depends += $(if $(CONFIG_PURISM_BLOBS), purism-blobs)
# coreboot builds are specialized on a per-target basis.
# The builds are done in a per-target subdirectory
CONFIG_COREBOOT_CONFIG ?= config/coreboot-$(BOARD).config
# Ensure that touching the config file will force a rebuild
$(build)/$(coreboot_dir)/.configured: $(CONFIG_COREBOOT_CONFIG)
EXTRA_FLAGS ?= -fdebug-prefix-map=$(pwd)=heads -gno-record-gcc-switches -Wno-error=packed-not-aligned -Wno-address-of-packed-member
# Select the coreboot version to use for the toolchain
ifeq "$($(coreboot_module)_toolchain)" ""
# Use the same module
coreboot_toolchain_module := $(coreboot_module)
else
# Use a different module
coreboot_toolchain_module := coreboot-$($(coreboot_module)_toolchain)
modules-y += $(coreboot_toolchain_module)
# The toolchain module won't build anything for this board, we just need
# the module prepped so we can hook up the toolchain target
$(coreboot_toolchain_module)_output := .nobuild
$(coreboot-toolchain_module)_configure := echo -e 'all:\n\ttouch .nobuild' > Makefile.nobuild
$(coreboot-toolchain_module)_target := -f Makefile.nobuild
endif
$(coreboot_module)_configure := \
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mkdir -p "$(build)/$(coreboot_dir)" \
&& $(call install_config,$(pwd)/$(CONFIG_COREBOOT_CONFIG),$(build)/$(coreboot_dir)/.config) \
&& echo 'CONFIG_LOCALVERSION="$(BRAND_NAME)-$(HEADS_GIT_VERSION)"' >> $(build)/$(coreboot_dir)/.config \
&& echo 'CONFIG_MAINBOARD_SMBIOS_PRODUCT_NAME="$(BOARD)"' >> $(build)/$(coreboot_dir)/.config \
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&& $(MAKE) olddefconfig \
-C "$(build)/$(coreboot_base_dir)" \
obj="$(build)/$(coreboot_dir)" \
DOTCONFIG="$(build)/$(coreboot_dir)/.config" \
BUILD_TIMELESS=1 \
CFLAGS_x86_32="$(EXTRA_FLAGS)" \
CFLAGS_x86_64="$(EXTRA_FLAGS)" \
# Create a dependency from coreboot to the toolchain. Use .heads-toolchain to
# mark that the toolchain was built.
COREBOOT_TOOLCHAIN_DIR=$(build)/$($(coreboot_toolchain_module)_base_dir)
$(COREBOOT_TOOLCHAIN_DIR)/.heads-toolchain: $(COREBOOT_TOOLCHAIN_DIR)/.canary
$(MAKE) -C "$(build)/$($(coreboot_toolchain_module)_base_dir)" CPUS=$(CPUS) "crossgcc-$(COREBOOT_TARGET)" \
$($(coreboot_toolchain_module)_toolchain_build_args)
touch "$@"
$(build)/$(coreboot_dir)/.configured: $(COREBOOT_TOOLCHAIN_DIR)/.heads-toolchain
## Toolchain packages ##
# coreboot likes to download its own toolchain packages, but these sources can
# go down or move also. Download them ahead of the toolchain build with
# fetch_source_archive.sh to leverage our mirrors.
#
# Create a task for each package.
# $1 - package name (binutils/gcc/gmp/etc. - check coreboot/util/crossgcc/sum/)
define coreboot-toolchain-pkg =
# The package versions and digests aren't duplicated here, we get them
# from the coreboot source. This means downloading all packages
# requires unpacking the coreboot source, but that's preferred over
# maintaining a duplicate list here for each coreboot version.
# Rule to download the source archive for $1 and place it in the
# cooreboot directory. Although there is a specific file produced here
# (the package), we can't use it as the rule target because we don't
# know the filename until coreboot is unpacked.
$(COREBOOT_TOOLCHAIN_DIR)/.heads-crossgcc-pkg-$(1) : $(COREBOOT_TOOLCHAIN_DIR)/.canary
WGET="$(WGET)" bin/fetch_coreboot_crossgcc_archive.sh \
"$(COREBOOT_TOOLCHAIN_DIR)" "$(1)" "$(packages)"
touch "$$@"
# The toolchain build requires this package
$(COREBOOT_TOOLCHAIN_DIR)/.heads-toolchain: $(COREBOOT_TOOLCHAIN_DIR)/.heads-crossgcc-pkg-$(1)
# The "packages" target depends on this target, so 'make packages' will
# include these packages for seeding a mirror.
packages: $(COREBOOT_TOOLCHAIN_DIR)/.heads-crossgcc-pkg-$(1)
endef
$(eval $(call coreboot-toolchain-pkg,gmp))
$(eval $(call coreboot-toolchain-pkg,mpfr))
$(eval $(call coreboot-toolchain-pkg,mpc))
$(eval $(call coreboot-toolchain-pkg,binutils))
$(eval $(call coreboot-toolchain-pkg,gcc))
$(eval $(call coreboot-toolchain-pkg,nasm))
$(eval $(call coreboot-toolchain-pkg,iasl))
# Build with the cross toolchain from the toolchain module (which might be the
# same coreboot module or a different one).
$(coreboot_module)_target := \
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-C "$(build)/$(coreboot_base_dir)" \
obj="$(build)/$(coreboot_dir)" \
DOTCONFIG="$(build)/$(coreboot_dir)/.config" \
XGCCPATH="$(build)/$($(coreboot_toolchain_module)_base_dir)/util/crossgcc/xgcc/bin/" \
$(COREBOOT_TARGET_CROSS) \
BUILD_TIMELESS=1 \
CFLAGS_x86_32="$(EXTRA_FLAGS)" \
CFLAGS_x86_64="$(EXTRA_FLAGS)" \
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$(MAKE_JOBS)
$(coreboot_module)_output := $(CONFIG_COREBOOT_ROM)
$(coreboot_module)_output += $(CONFIG_COREBOOT_BOOTBLOCK)
# Force a rebuild if the inputs have changed
$(build)/$(coreboot_dir)/.build: \
$(build)/$(BOARD)/$(LINUX_IMAGE_FILE) \
$(build)/$(BOARD)/initrd.cpio.xz \
# This produces a ROM image that is written with the flashrom program
ifneq ($(CONFIG_COREBOOT),)
$(build)/$(BOARD)/$(CB_OUTPUT_FILE): $(build)/$(coreboot_dir)/.build
# Use coreboot.rom, because custom output files might not be processed by cbfstool
"$(build)/$(coreboot_dir)/cbfstool" "$(dir $<)coreboot.rom" print
$(call do-copy,$(dir $<)$(CONFIG_COREBOOT_ROM),$@)
@touch $@ # update the time stamp
ifneq ($(CONFIG_COREBOOT_BOOTBLOCK),)
$(build)/$(BOARD)/$(CB_BOOTBLOCK_FILE): $(build)/$(coreboot_dir)/.build
$(call do-copy,$(dir $<)$(CONFIG_COREBOOT_BOOTBLOCK),$@)
@touch $@ # update the time stamp
endif
endif
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#
# Helpful target for reconfiguring the coreboot target
#
coreboot.save_in_defconfig_format_in_place:
mkdir -p "$(build)/$(coreboot_dir)" && \
cp "$(pwd)/$(CONFIG_COREBOOT_CONFIG)" "$(build)/$(coreboot_dir)/.config" && \
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$(MAKE) \
-C "$(build)/$(coreboot_base_dir)" \
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DOTCONFIG="$(build)/$(coreboot_dir)/.config" \
olddefconfig && \
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$(MAKE) \
-C "$(build)/$(coreboot_base_dir)" \
DOTCONFIG="$(build)/$(coreboot_dir)/.config" \
savedefconfig && \
mv "$(build)/$(coreboot_base_dir)/defconfig" "$(pwd)/$(CONFIG_COREBOOT_CONFIG)"
coreboot.save_in_oldconfig_format_in_place:
mkdir -p "$(build)/$(coreboot_dir)" && \
cp "$(pwd)/$(CONFIG_COREBOOT_CONFIG)" "$(build)/$(coreboot_dir)/.config" && \
$(MAKE) \
-C "$(build)/$(coreboot_base_dir)" \
DOTCONFIG="$(build)/$(coreboot_dir)/.config" \
olddefconfig \
&& mv "$(build)/$(coreboot_dir)/.config" "$(pwd)/$(CONFIG_COREBOOT_CONFIG)"
coreboot.modify_defconfig_in_place:
mkdir -p "$(build)/$(coreboot_dir)" && \
cp "$(pwd)/$(CONFIG_COREBOOT_CONFIG)" "$(build)/$(coreboot_dir)/.config" && \
$(MAKE) \
-C "$(build)/$(coreboot_base_dir)" \
DOTCONFIG="$(build)/$(coreboot_dir)/.config" \
menuconfig \
&& $(MAKE) \
-C "$(build)/$(coreboot_base_dir)" \
DOTCONFIG="$(build)/$(coreboot_dir)/.config" \
DEFCONFIG="$(pwd)/$(CONFIG_COREBOOT_CONFIG)" \
savedefconfig
coreboot.modify_and_save_oldconfig_in_place:
mkdir -p "$(build)/$(coreboot_dir)" && \
$(MAKE) menuconfig \
-C "$(build)/$(coreboot_base_dir)" \
obj="$(build)/$(coreboot_dir)" \
DOTCONFIG="$(pwd)/$(CONFIG_COREBOOT_CONFIG)"
# if we are not building from a git checkout,
# we must also download the coreboot-blobs tree
ifeq "$($(coreboot_module)_repo)" ""
coreboot-blobs_module := coreboot-blobs-$(CONFIG_COREBOOT_VERSION)
$(coreboot_module)_depends += $(coreboot-blobs_module)
modules-y += $(coreboot-blobs_module)
## there is nothing to build for the blobs, this should be
## made easier to make happen
$(coreboot-blobs_module)_output := .built
$(coreboot-blobs_module)_configure := echo -e 'all:\n\ttouch .built' > Makefile
endif
endif