$ sudo apt-get install -y bison build-essential curl flex git gnat libncurses-dev libssl-dev zlib1g-dev pkgconf$ git clone https://github.com/KunYi/repository coreboot
$ cd coreboot
$ git submodule update --init --checkout$ make crossgcc-i386 CPUS=$(nproc)
tests/Makefile.mk:31: No system cmocka, build from 3rdparty instead...
Welcome to the coreboot cross toolchain builder v2025-07-04_a9e97268fe
Building toolchain using 12 thread(s).
Target architecture is i386-elf
Found compatible Ada compiler, enabling Ada support by default.
Downloading and verifying tarballs ...
* gmp-6.3.0.tar.xz (cached)... hash verified (b4043dd2964ab1a858109da85c44de224384f352)
* mpfr-4.2.2.tar.xz (downloading from https://ftpmirror.gnu.org/mpfr/mpfr-4.2.2.tar.xz)... 100%... hash verified (a63a264b273a652e27518443640e69567da498ce)
* mpc-1.3.1.tar.gz (cached)... hash verified (bac1c1fa79f5602df1e29e4684e103ad55714e02)
* binutils-2.44.tar.xz (downloading from https://ftpmirror.gnu.org/binutils/binutils-2.44.tar.xz)... 100%... hash verified (c8c9f5ae46ab9e3722c71821982d2c270e267748)
* gcc-14.2.0.tar.xz (cached)... hash verified (d91ecc3d20ce6298bd95f9b09cc51dc6d3c73ae3)
Downloaded tarballs ... ok
Unpacking and patching ...
* gmp-6.3.0.tar.xz
o gmp-6.3.0_fix-c23-prototypes.patch
o gmp-6.3.0_generic-build.patch
* mpfr-4.2.2.tar.xz
* mpc-1.3.1.tar.gz
* binutils-2.44.tar.xz
o binutils-2.44_as-ipxe.patch
o binutils-2.44_no-makeinfo.patch
* gcc-14.2.0.tar.xz
o gcc-14.2.0_asan_shadow_offset_callback.patch
o gcc-14.2.0_gnat.patch
o gcc-14.2.0_libcpp.patch
o gcc-14.2.0_libgcc.patch
o gcc-14.2.0_musl_poisoned_calloc.patch
o gcc-14.2.0_rv32iafc.patch
Unpacked and patched ... ok
Building packages ...
Skipping GMP v6.3.0 for host as it is already built
Building MPFR v4.2.2 for host ... ok
Skipping MPC v1.3.1 for host as it is already built
Building BINUTILS v2.44 for target ... ok
Skipping GCC v14.2.0 for target as it is already built
Packages built ... ok
Copied EDK2 tools template ... ok
Cleaning up temporary files... ok
You can now run i386-elf cross GCC from /tmp/coreboot/util/crossgcc/xgcc.
Welcome to the coreboot cross toolchain builder v2025-07-04_a9e97268fe
Building toolchain using 12 thread(s).
Downloading and verifying tarballs ...
* nasm-2.16.03.tar.bz2 (cached)... hash verified (c63080347a5c1c8904456fe6c680b722558383b4)
Downloaded tarballs ... ok
Unpacking and patching ...
* nasm-2.16.03.tar.bz2
Unpacked and patched ... ok
Building packages ...
Skipping NASM v2.16.03 for host as it is already built
Packages built ... ok
Copied EDK2 tools template ... ok
Cleaning up temporary files... ok
You can now run NASM from /tmp/coreboot/util/crossgcc/xgcc.
Welcome to the coreboot cross toolchain builder v2025-07-04_a9e97268fe
Building toolchain using 12 thread(s).
Downloading and verifying tarballs ...
* acpica-unix-20250404.tar.gz (downloading from https://downloadmirror.intel.com/852044/acpica-unix-20250404.tar.gz)... 100%... hash verified (aeff4d1254e73263b4f2c6f7d1e96af47fa219e0)
Downloaded tarballs ... ok
Unpacking and patching ...
* acpica-unix-20250404.tar.gz
o acpica-unix-20250404_iasl.patch
Unpacked and patched ... ok
Building packages ...
Building IASL v20250404 for host ... ok
Packages built ... ok
Copied EDK2 tools template ... ok
Cleaning up temporary files... ok
You can now run IASL ACPI compiler from /tmp/coreboot/util/crossgcc/xgcc.$ make KBUILD_DEFCONFIG=configs/config.lattepanda_mu defconfig
tests/Makefile.mk:31: No system cmocka, build from 3rdparty instead...
tests/Makefile.mk:31: No system cmocka, build from 3rdparty instead...
*** Default configuration is based on 'configs/config.lattepanda_mu'
#
# configuration written to /tmp/coreboot/.config
#$ make -j12
...
...
IFDTOOL me.bin -> coreboot.pre
File build/coreboot.pre is 16777216 bytes
File build/me.bin is 4272128 bytes
Adding build/me.bin as the Intel ME section of build/coreboot.pre
Writing new image to build/coreboot.pre
IFDTOOL Unlocking Management Engine
File build/coreboot.pre is 16777216 bytes
Writing new image to build/coreboot.pre
UPDATE-FIT set FIT pointer to table
UPDATE-FIT Microcode
CBFS coreboot.rom
FIT table:
Index Type Addr Size
0 Microcode 0xffc504b0 0x00000000
CBFSLAYOUT coreboot.rom
This image contains the following sections that can be manipulated with this tool:
'SI_DESC' (size 4096, offset 0)
'SI_ME' (size 4272128, offset 4096)
'SI_PDR' (size 2015232, offset 4276224)
'RW_MRC_CACHE' (size 65536, offset 12582912)
'SMMSTORE' (size 262144, offset 12648448)
'COREBOOT' (CBFS, size 3865600, offset 12911616)
It is possible to perform either the write action or the CBFS add/remove actions on every section listed above.
To see the image's read-only sections as well, rerun with the -w option.
CBFSPRINT coreboot.rom
FMAP REGION: COREBOOT
Name Offset Type Size Comp
cbfs_master_header 0x0 cbfs header 32 none
cpu_microcode_blob.bin 0x80 microcode 139264 none
intel_fit 0x220c0 intel_fit 80 none
fallback/romstage 0x22140 stage 73480 none
fallback/ramstage 0x340c0 stage 130924 LZMA (293380 decompressed)
config 0x54080 raw 4777 LZMA (17318 decompressed)
revision 0x55380 raw 780 none
build_info 0x556c0 raw 106 none
spd.bin 0x55780 spd 1024 none
fallback/dsdt.aml 0x55bc0 raw 17176 none
rt8168-macaddress 0x59f40 raw 17 none
vbt.bin 0x59f80 raw 1269 LZMA (9216 decompressed)
(empty) 0x5a4c0 null 1764 none
fspm.bin 0x5abc0 fsp 786432 none
fsps.bin 0x11ac00 fsp 286419 LZ4 (389120 decompressed)
fallback/postcar 0x160b40 stage 25480 none
fallback/payload 0x166f40 simple elf 1444143 none
(empty) 0x2c78c0 null 922340 none
bootblock 0x3a8bc0 bootblock 28672 none
Built lattepanda/mu (MU_8G)use build/coreboot.rom to upgrade your lattepanda mu board