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Makefile: Don't generate update package for legacy flash boards

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The only purpose of legacy flash boards is to be flashed over vendor
firmware using an exploit, to then flash non-maximized Heads firmware.

They are never upgraded to another legacy flash build, and they move
the coreboot ROM from the build directory, so don't build an update
package for those boards.

Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
This commit is contained in:
Jonathon Hall 2023-11-14 12:14:18 -05:00
parent 6ca1d670f4
commit bb7294476d
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GPG Key ID: 1E9C3CA91AE25114
3 changed files with 14 additions and 0 deletions
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10
Makefile
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@ -50,6 +50,12 @@ endif
# By default, we are building for x86, up to a board to change this variable
CONFIG_TARGET_ARCH := x86
# Legacy flash boards have to be handled specifically for some functionality
# (e.g. they don't generate upgrade packages, lack bash, etc.) Use this to
# guard behavior that is specific to legacy flash boards only. Don't use it for
# behavior that might be needed for other boards, use specific configs instead.
CONFIG_LEGACY_FLASH := n
include $(CONFIG)
# Default update package extension is 'zip' unless a brand wants a branded
@ -164,6 +170,9 @@ payload: $(build)/$(BOARD)/bzImage $(build)/$(initrd_dir)/initrd.cpio.xz
ifeq ($(CONFIG_COREBOOT), y)
# Legacy flash boards don't generate an update package, the only purpose of
# those boards is to be flashed over vendor firmware via an exploit.
ifneq ($(CONFIG_LEGACY_FLASH), y)
# Coreboot targets create an update package that can be applied with integrity
# verification before flashing (see flash-gui.sh). The ZIP package format
# allows other metadata that might be needed to added in the future without
@ -174,6 +183,7 @@ $(board_build)/$(CB_UPDATE_PKG_FILE): $(board_build)/$(CB_OUTPUT_FILE)
cp "$<" "$(board_build)/update_pkg/"
cd "$(board_build)/update_pkg" && sha256sum "$(CB_OUTPUT_FILE)" >sha256sum.txt
cd "$(board_build)/update_pkg" && zip -9 "$@" "$(CB_OUTPUT_FILE)" sha256sum.txt
endif
all: $(board_build)/$(CB_OUTPUT_FILE) $(board_build)/$(CB_UPDATE_PKG_FILE)
ifneq ($(CONFIG_COREBOOT_BOOTBLOCK),)

2
boards/UNTESTED_t430-legacy-flash/UNTESTED_t430-legacy-flash.config
View File

@ -30,6 +30,8 @@ export CONFIG_BOOTSCRIPT=/bin/xx30-flash.init
export CONFIG_BOARD_NAME="ThinkPad T430-legacy-flash"
export CONFIG_FLASHROM_OPTIONS="--force --noverify-all -p internal --ifd --image bios"
CONFIG_LEGACY_FLASH=y
# This board is "special" in that we need a 4MB top SPI flashable ROM.
# This is enough to allow the board to boot into a minimal Heads and read the full Legacy
# ROM from an external USB media.

2
boards/x230-legacy-flash/x230-legacy-flash.config
View File

@ -31,6 +31,8 @@ export CONFIG_BOOTSCRIPT=/bin/xx30-flash.init
export CONFIG_BOARD_NAME="ThinkPad X230-legacy-flash"
export CONFIG_FLASHROM_OPTIONS="--force --noverify-all -p internal --ifd --image bios"
CONFIG_LEGACY_FLASH=y
# This board is "special" in that we need a 4MB top SPI flashable ROM.
# This is enough to allow the board to boot into a minimal Heads and read the full Legacy
# ROM from an external USB media.