Edk2 dev

common/download_and_extract_mrc.sh

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+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+
+# shellcheck disable=SC1091
+# LCOV_EXCL_START
+if [ -z "$UNIT_TESTING" ]; then
+  source /home/coreboot/common_scripts/variables.sh
+fi
+# LCOV_EXCL_STOP
+
+################################################################################
+### NOTE: assumes coreboot has already been downloaded
+################################################################################
+
+
+UTIL_CHROMEOS_PATH="$DOCKER_COREBOOT_DIR/util/chromeos"
+
+################################################################################
+## Download and compile "uudecode" as it is not included in the coreboot-sdk docker image
+################################################################################
+function downloadUudecode() {
+  wget https://ftp.gnu.org/gnu/sharutils/sharutils-4.15.2.tar.xz
+  tar xJf sharutils-4.15.2.tar.xz
+  cd sharutils-4.15.2 || exit
+  sed -i 's/BUFSIZ/rw_base_size/' src/unshar.c
+  sed -i '/program_name/s/^/extern /' src/*opts.h
+  sed -i 's/IO_ftrylockfile/IO_EOF_SEEN/' lib/*.c
+  echo "#define _IO_IN_BACKUP 0x100" >> lib/stdio-impl.h
+  ./configure
+  make
+  mv src/uudecode "$UTIL_CHROMEOS_PATH" || exit
+}
+
+################################################################################
+## Download and compile "parted" as it is not included in the coreboot-sdk docker image
+################################################################################
+function downloadParted() {
+  wget https://ftp.gnu.org/gnu/parted/parted-3.4.tar.xz
+  tar xJf parted-3.4.tar.xz
+  cd parted-3.4 || exit
+  ./configure --disable-device-mapper --disable-static
+  make
+  mv parted/parted "$UTIL_CHROMEOS_PATH" || exit
+  mv parted/.libs/ "$UTIL_CHROMEOS_PATH" # || exit
+  mv libparted/.libs/libparted.so "$UTIL_CHROMEOS_PATH/.libs/" || exit
+  mv libparted/.libs/libparted.so.2 "$UTIL_CHROMEOS_PATH/.libs/" || exit
+  mv libparted/.libs/libparted.so.2.0.3 "$UTIL_CHROMEOS_PATH/.libs/" || exit
+}
+
+################################################################################
+## Download and compile "unzip" as it is not included in the coreboot-sdk docker image
+################################################################################
+function downloadUnzip() {
+  wget https://downloads.sourceforge.net/infozip/unzip60.tar.gz
+  tar xzf unzip60.tar.gz
+  cd unzip60 || exit
+  make -f unix/Makefile generic
+  mv unzip "$UTIL_CHROMEOS_PATH" || exit
+}
+
+################################################################################
+## MAIN FUNCTION: download ChromeOS ROM and extract mrc.bin into root coreboot
+##   directory
+#################################################################################
+function downloadAndExtractmrc() {
+  if [ ! -f "$DOCKER_COREBOOT_DIR/mrc.bin" ]; then
+    # FIXME:  Due to connection stability problems trying to download the chromebook image,
+    #         use the mrc.bin from skulls for now
+    wget -P "$DOCKER_COREBOOT_DIR/" https://github.com/merge/skulls/raw/master/t440p/mrc.bin
+
+    # Create temp directory
+    # mkdir "$DOCKER_COREBOOT_DIR/deb_extract"
+    # cd "$DOCKER_COREBOOT_DIR/deb_extract" || exit
+    #
+    # downloadUudecode
+    # downloadParted
+    # downloadUnzip
+    #
+    # # clean up temp directory
+    # cd "$DOCKER_COREBOOT_DIR/" || exit
+    # rm -rf "$DOCKER_COREBOOT_DIR/deb_extract"
+    #
+    # # https://doc.coreboot.org/northbridge/intel/haswell/mrc.bin.html
+    # make -C "$DOCKER_COREBOOT_DIR/util/cbfstool"
+    # cd "$DOCKER_COREBOOT_DIR/util/chromeos" || exit
+    #
+    # #PATH="$PATH:$DOCKER_COREBOOT_DIR/util/chromeos" LD_LIBRARY_PATH="$UTIL_CHROMEOS_PATH/.libs/:$LD_LIBRARY_PATH" ./crosfirmware.sh peppy || exit
+    # ./crosfirmware.sh peppy || exit
+    # "$DOCKER_COREBOOT_DIR/util/cbfstool/cbfstool" coreboot-*.bin extract -f mrc.bin -n mrc.bin -r RO_SECTION || exit
+    # mv mrc.bin "$DOCKER_COREBOOT_DIR/" || exit
+  fi
+}

w541/README.md

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+# Lenovo W541
+
+### Compiling
+Build the latest merged into the master git branch:  
+`./build.sh --bleeding-edge w541`
+
+Latest stable release:  
+ `./build.sh w541`
+
+### Output
+ ##### Internal flashing
+`coreboot_lenovo-w541-complete.rom` - The complete Coreboot ROM is the 12MB version used for internal flashing.   
+`coreboot_lenovo-w541-complete.rom.sha256` - sha256 checksum of 12MB Coreboot Rom
+
+*NOTE:* As this is compiled without the stock BIOS, all IFD, GBE and ME blobs are stubs.  Use the `flash.sh` script at the root of the directory.
+
+
+##### External flashing
+`coreboot_lenovo-w541-top.rom` - The 4MB Coreboot BIOS that can be flashed externally onto the top BIOS chip.
+`coreboot_lenovo-w541-top.rom.sha256` - sha256 checksum of 4MB Coreboot BIOS
+
+*NOTE:* See [Skulls](https://github.com/merge/skulls/tree/master/w541) for instructions on how to flash the top BIOS chip as well as unlocking the IFD and cleaning Intel ME

w541/compile.sh

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+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+
+# shellcheck disable=SC1091
+source /home/coreboot/common_scripts/./variables.sh
+source /home/coreboot/common_scripts/./download_coreboot.sh
+source /home/coreboot/common_scripts/./config_and_make.sh
+source /home/coreboot/common_scripts/./extract_stockbios.sh
+source /home/coreboot/common_scripts/./copy_bootsplash.sh
+source /home/coreboot/common_scripts/./download_and_extract_mrc.sh
+
+################################################################################
+## MODEL VARIABLES
+################################################################################
+MAINBOARD="lenovo"
+MODEL="w541"
+
+################################################################################
+
+###############################################
+##   download/git clone/git pull Coreboot    ##
+###############################################
+downloadOrUpdateCoreboot
+
+downloadAndExtractmrc
+
+##############################################################
+##   Export Stock BIOS GBE/ME/IDF (Optional for updating)   ##
+##############################################################
+# uncomment next line to enable
+# extractStockBios "$MAINBOARD" "$MODEL" "stock_bios.bin"
+
+#############################
+##   Copy bootsplash.jpg   ##
+#############################
+copyEdk2Bootsplash
+
+##############################
+##   Copy config and make   ##
+##############################
+configAndMake
+
+#####################
+##   Post build    ##
+#####################
+if [ ! -f "$DOCKER_COREBOOT_DIR/build/coreboot.rom" ]; then
+  echo "Uh oh. Things did not go according to plan."
+  exit 1;
+else
+  mv "$DOCKER_COREBOOT_DIR/build/coreboot.rom" "$DOCKER_COREBOOT_DIR/coreboot_$MAINBOARD-$MODEL-complete.rom"
+
+  #split out top BIOS
+  dd if="$DOCKER_COREBOOT_DIR/coreboot_$MAINBOARD-$MODEL-complete.rom" of="$DOCKER_COREBOOT_DIR/coreboot_$MAINBOARD-$MODEL-top.rom" bs=1M skip=8
+
+  sha256sum "$DOCKER_COREBOOT_DIR/coreboot_$MAINBOARD-$MODEL-complete.rom" > "$DOCKER_COREBOOT_DIR/coreboot_$MAINBOARD-$MODEL-complete.rom.sha256"
+  sha256sum "$DOCKER_COREBOOT_DIR/coreboot_$MAINBOARD-$MODEL-top.rom" > "$DOCKER_COREBOOT_DIR/coreboot_$MAINBOARD-$MODEL-top.rom-sha256"
+fi

w541/defconfig

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+CONFIG_TIMESTAMPS_ON_CONSOLE=y
+CONFIG_BOOTSPLASH_IMAGE=y
+CONFIG_SBOM=y
+CONFIG_SBOM_COMPILER=y
+CONFIG_SBOM_PAYLOAD=y
+CONFIG_SBOM_MICROCODE=y
+CONFIG_VENDOR_LENOVO=y
+CONFIG_NO_POST=y
+CONFIG_CBFS_SIZE=0x300000
+CONFIG_LINEAR_FRAMEBUFFER_MAX_HEIGHT=768
+CONFIG_LINEAR_FRAMEBUFFER_MAX_WIDTH=1024
+CONFIG_INTEL_GMA_VBT_FILE="src/mainboard/$(MAINBOARDDIR)/variants/w541/data.vbt"
+CONFIG_BOARD_LENOVO_THINKPAD_W541=y
+CONFIG_EDK2_BOOTSPLASH_FILE="bootsplash.jpg"
+CONFIG_HAVE_MRC=y
+CONFIG_H8_SUPPORT_BT_ON_WIFI=y
+CONFIG_BOOTSPLASH=y
+CONFIG_MRC_SETTINGS_PROTECT=y
+CONFIG_USBDEBUG=y
+CONFIG_DRIVERS_PS2_KEYBOARD=y
+CONFIG_SECURITY_CLEAR_DRAM_ON_REGULAR_BOOT=y
+CONFIG_PAYLOAD_EDK2=y
+CONFIG_EDK2_CBMEM_LOGGING=y
+CONFIG_COREINFO_SECONDARY_PAYLOAD=y
+CONFIG_MEMTEST_SECONDARY_PAYLOAD=y
+CONFIG_NVRAMCUI_SECONDARY_PAYLOAD=y
+CONFIG_TINT_SECONDARY_PAYLOAD=y
+CONFIG_MEMTEST86PLUS_V5=y

w541/flashrom.sh

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+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+set -e
+
+if ! command -v flashrom &> /dev/null; then
+    echo "Flashrom cannot be found.  Install and try again."
+    exit 1
+fi
+
+if [ -z "$1" ]; then
+    echo "File name needed.  No argument supplied.";
+    exit 1;
+fi
+
+flashrom -p internal -r "$1.backup" && flashrom -p internal --layout "$PWD/w541/layout.txt" --image bios -w "$1"

w541/layout.txt

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+00000000:00000fff fd
+00500000:00bfffff bios
+00003000:004fffff me
+00001000:00002fff gbe