coreboot-15h

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Revision as of 21:11, 10 November 2025 by Mrothfuss (talk | contribs)
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coreboot-15h, also known as Mike's coreboot, is a distribution of coreboot for various Family 15h motherboards, developed by mrothfuss, using AMD's open-source fam15h AGESA and CIMX for initialization. This has allowed for the reintroduction of several boards long-deprecated upstream (such as the H8QGi+-F), and has allowed several previously-unsupported Family 15h boards (particularly others from Supermicro) to be ported. On ASUS boards that were once supported by Raptor Engineering's native initialization implementation (removed upstream in coreboot 4.12), coreboot-15h offers improved reliability and hardware compatibility over upstream coreboot 4.11 and Dasharo 0.4.0. Improvements include dramatically more reliable memory initialization (including support for more memory and denser modules), improved stability once booted, significantly improved HyperTransport configuration, native support for hardware monitoring and fan control, and patches to the build system to allow building on modern platforms. It is, at the time of writing, believed to be the most stable and complete coreboot variant available for the hardware it targets, and it currently appears to be the only actively-developed coreboot variant supporting family 15h.

Compiling coreboot from source

Compilation has been tested on Debian 12 and FreeBSD 14.2. Building on FreeBSD is the same as building on Linux, but 'make' is replaced with 'gmake'.

Debian 12 Dependencies 

apt install git build-essential m4 bison flex zlib1g-dev libncurses-dev imagemagick python-is-python3

FreeBSD 14.2 Dependencies 

### This list may be incomplete
pkg install git gmake gcc12 m4 bison ImageMagick7  python

Configuring and Compiling 

### Fetch coreboot-15h source
git clone https://git.15h.org/mrothfuss/coreboot-15h.git
cd coreboot-15h

### Optional: Checkout a specific commit to reproduce a release
### git commit-id's are included at the end of a release name
### Example: 2025.04.28-v4.11-34811b78c48
git checkout 34811b78c48

### Optional: Fetch blobs (required for AMD microcode and VGABIOS)
### Both can be explicitly excluded from the build by menuconfig
git submodule update --init --checkout 3rdparty/blobs

### Optional: Fetch vboot (experimental TPM Measured boot support)
git submodule update --init --checkout 3rdparty/vboot

### Build the cross compiler (may take a while)
make crossgcc-i386 CPUS=$(nproc)

### Select a config template from ./configs
### These config files are used to compile the releases distributed on 15h.org
### 
### Copy the config you want to start with, you can adjust it in the next step
cp configs/config.supermicro_h8scm_seabios_ucode_matrox-oprom_vga-oproms .config

### Optional: Review or adjust your configuration
make menuconfig

### Build coreboot, your ROM will be at ./build/coreboot.rom
make

Listing Source Files

To review a precise list of files compiled into your ./build/coreboot.rom file, use this command. 

make filelist

This command works after a successful 'make' and changes depending on the motherboard and configuration options selected.

Switching Motherboards

If you want to switch motherboards, you must first clean the build environment. Afterwards, continue from the config selection step. 

make distclean

Stable

ASUS KGPE-D16

Release
Notes
Download Options
2025.11.09-v4.11-6f1fd5cf220
  • Optimized HyperTransport Speed and Deemphasis
  • Optimized RAM Power Saving
  • Optimized RAM ECC Scrub Rates
  • Setup Thermal Throttling
  • Enabled Thermal Shutdown
  • SeaBIOS + uCode + VGA-OpROMs
  • SeaBIOS + uCode (text-mode)
  • SeaBIOS (text-mode, blob-free)
2025.10.31-v4.11-c71dd7896fe
  • Enabled the IOMMU
  • Enabled the HPET
  • Added coreinfo and memtest
  • SeaBIOS + uCode + VGA-OpROMs
  • SeaBIOS + uCode (text-mode)
  • SeaBIOS (text-mode, blob-free)
2025.10.11-v4.11-63a34806baf
  • Added support for microcode removal
  • Created configs with blobs removed
  • SeaBIOS + uCode + VGA-OpROMs
  • SeaBIOS + uCode (text-mode)
  • SeaBIOS (text-mode, blob-free)
2025.10.10-v4.11-a99acc20d4a
  • Initial v4.11 AGESA release
    • Robust support for all DIMM slots
      • up to 32GB RDIMMs supported
      • up to 64GB LRDIMMs supported
    • Up to 4 PCIe cards supported
    • Native fan control
    • Latest microcode
    • IOMMU is disabled
  • SeaBIOS + uCode + VGA-OpROMs

SuperMicro H8SCM

Release
Notes
Download Options
2025.11.09-v4.11-6f1fd5cf220
  • Optimized HyperTransport Speed and Deemphasis
  • Optimized RAM Power Saving
  • Optimized RAM ECC Scrub Rates
  • Setup Thermal Throttling
  • Enabled Thermal Shutdown
  • SeaBIOS + uCode + VGA-OpROMs
2025.10.31-v4.11-c71dd7896fe
  • Enabled the IOMMU
  • Enabled the HPET
  • Added coreinfo and memtest
  • SeaBIOS + uCode + VGA-OpROMs
2025.04.28-v4.11-34811b78c48
  • Fixed support for rev 1.02 motherboards
  • Added support for UDIMM and LRDIMM memory
  • Updated config
    • RAM interleaving is only enabled for channels, not bank nor nodes
  • SeaBIOS + uCode + VGA-OpROMs
2025.03.08-v4.11-9f78cb25cd
  • Updated config
    • Onboard VGA is no longer primary by default
  • SeaBIOS + uCode + VGA-OpROMs
2025.02.23-v4.11-583f5e6a34
  • Initial v4.11 AGESA release
    • Microcode Updated
    • Added fan control
    • Various AGESA bugs fixed
    • IOMMU is disabled
  • SeaBIOS + uCode + VGA-OpROMs

SuperMicro H8SGL

Release
Notes
Download Options
2025.11.09-v4.11-6f1fd5cf220
  • Optimized HyperTransport Speed and Deemphasis
  • Optimized RAM Power Saving
  • Optimized RAM ECC Scrub Rates
  • Setup Thermal Throttling
  • Enabled Thermal Shutdown
  • SeaBIOS + uCode + VGA-OpROMs
2025.10.31-v4.11-c71dd7896fe
  • Enabled the IOMMU
  • Enabled the HPET
  • Added coreinfo and memtest
  • SeaBIOS + uCode + VGA-OpROMs
2025.09.15-v4.11-58cfb23a680
  • Initial release
    • IOMMU is disabled
  • SeaBIOS + uCode + VGA-OpROMs

Beta

ASUS F2A85-M

Release
Notes
Download Options
2025.03.08-v4.11-9f78cb25cd
  • Initial release
    • Uses the existing AGESA 15TN codebase
  • SeaBIOS + uCode + XHCI-FW + VGA-OpROMs

ASUS F2A85-M PRO

Release
Notes
Download Options
2025.03.09-v4.11-1ca15f788b
  • Initial release
    • Uses the existing AGESA 15TN codebase

ASUS F2A85-M LE

Release
Notes
Download Options
2025.03.09-v4.11-1ca15f788b
  • Initial release
    • Uses the existing AGESA 15TN codebase

SuperMicro H8DGi

Release
Notes
Download Options
2025.05.03-v4.11-6656887228f
  • Initial support
    • No fan control
    • Northbridge 2 is offline
    • IOMMU is disabled
  • SeaBIOS + uCode + VGA-OpROMs

SuperMicro H8DG6

Release
Notes
Download Options
2025.05.08-v4.11-7f9e8d15532
  • Initial support
    • Onboard SAS enabled
    • No fan control
    • Northbridge 2 is offline
    • IOMMU is disabled
  • SeaBIOS + uCode + VGA-OpROMs


SuperMicro H8QGi+-F

Release
Notes
Download Options
2025.10.31-v4.11-c71dd7896fe
  • Enabled the IOMMU
  • Enabled the HPET
  • Added coreinfo and memtest
  • SeaBIOS + uCode + VGA-OpROMs
2025.04.28-v4.11-34811b78c48
  • Added support for UDIMM and LRDIMM memory
  • Updated config
    • RAM interleaving is only enabled for channels, not bank nor nodes
  • SeaBIOS + uCode + VGA-OpROMs
2025.03.08-v4.11-9f78cb25cd
  • Updated config
    • Onboard VGA is no longer primary by default
  • SeaBIOS + uCode + VGA-OpROMs
2025.02.25-v4.11-97011b87c1
  • Initial v4.11 AGESA release
    • Microcode Updated
    • Added fan control
    • Various AGESA bugs fixed
    • IOMMU is disabled
  • SeaBIOS + uCode + VGA-OpROMs

SuperMicro H8QG6+-F

Release
Notes
Download Options
2025.10.31-v4.11-c71dd7896fe
  • Enabled the IOMMU
  • Enabled the HPET
  • Added coreinfo and memtest
  • SeaBIOS + uCode + VGA-OpROMs
2025.05.03-v4.11-6656887228f
  • Activated PCIe slots 1 and 3
  • SeaBIOS + uCode + VGA-OpROMs
2025.04.28-v4.11-34811b78c48
  • Added support for UDIMM and LRDIMM memory
  • Updated config
    • RAM interleaving is only enabled for channels, not bank nor nodes
  • SeaBIOS + uCode + VGA-OpROMs
2025.03.08-v4.11-9f78cb25cd
  • Updated config
    • Onboard VGA is no longer primary by default
  • SeaBIOS + uCode + VGA-OpROMs
2025.02.25-v4.11-97011b87c1
  • Initial v4.11 AGESA release
    • Microcode Updated
    • Added fan control
    • Enabled onboard SAS controller
    • Various AGESA bugs fixed
    • Northbridge 2 is offline
    • IOMMU is disabled
  • SeaBIOS + uCode + VGA-OpROMs

Deprecated

ASUS KGPE-D16 (Raptor)

Release
Notes
Download Options
2025.03.08-v4.11-9f78cb25cd
  • Updated configs
    • Sets default CMOS settings each boot
    • Expanded CBFS for 16MB
  • SeaBIOS + uCode + VGA-OpROMs
  • SeaBIOS + uCode
  • SeaBIOS (blob-free)
2025.02.23-v4.11-583f5e6a34
  • Added fan control
2024.09.16-v4.11-d176edf4ae
  • Added more configuration variants
  • Removed coreinfo as a secondary payload
  • coreboot codebase unchanged

2024.09.14-v4.11-065549759c

  • Improved board stability
    • Fixed bugs in RAM initialization code
    • Fixed HyperTransport Deemphasis values
  • SeaBIOS + uCode + VGA-OpROMs
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