Mtl release by filipleple · Pull Request #2082 · linuxboot/heads

filipleple · 2026-04-09T14:17:04Z

This pull request updates the build configuration for NovaCustom V540TU and V560TU boards, focusing on switching from Clevo to NovaCustom mainboard definitions, updating the build environment, and aligning with the Dasharo EC and firmware stack. The changes improve consistency, bring in newer firmware components, and update several settings for hardware compatibility and feature support.

CI Environment Update:

Updated the Docker image used in .circleci/config.yml jobs from tlaurion/heads-dev-env:v0.2.7 to v0.2.9 to ensure builds use the latest development environment. [1] [2] [3] [4]

Board and Mainboard Configuration:

Switched mainboard vendor and directory from Clevo to NovaCustom in config/coreboot-novacustom-v540tu.config, and enabled the appropriate NovaCustom board options. This aligns the configuration with the actual hardware and firmware stack. [1] [2] [3] [4]
Added CONFIG_DASHARO_EC=y to both boards/novacustom-v540tu/novacustom-v540tu.config and boards/novacustom-v560tu/novacustom-v560tu.config to enable Dasharo EC support. [1] [2]

Firmware and Embedded Controller:

Switched from System76 EC to Dasharo EC, including update support and battery thresholds, and set the EC update file.
Updated coreboot local version to v1.0.1, adjusted FSP paths and types, and enabled several new firmware and memory settings for improved hardware compatibility and debugging. [1] [2] [3] [4] [5] [6] [7] [8] [9]

Feature and Peripheral Configuration:

Disabled bootsplash, enabled SPI flash SMM mode, and set additional device and debug options. [1] [2]
Added or updated several vendor and hardware support options, including PCIe, memory, and debug settings. [1] [2] [3] [4] [5]

These changes collectively modernize the firmware configuration for NovaCustom V540TU/V560TU, improve maintainability, and ensure compatibility with Dasharo EC and the latest coreboot features.

Squashed from: tlaurion@2df1c8b tlaurion@447d464 then, updated EC revision as per: Dasharo/ec#82 (comment) Signed-off-by: Maciej Pijanowski <maciej.pijanowski@3mdeb.com>

Required to to build dasharo-ec module. Need to pin SDCC version to 4.2.0 to avoid Dasharo/dasharo-issues#1785 and be in sync with ec-sdk: Dasharo/ec-sdk#2 Using 3.8.0 in nix toolchain (as originally used in ec-sdk) was not feasible: linuxboot#2062 (comment) Signed-off-by: Maciej Pijanowski <maciej.pijanowski@3mdeb.com>

…mal changes to build Dasharo-EC Signed-off-by: Thierry Laurion <insurgo@riseup.net>

tlaurion · 2026-04-09T14:45:14Z

site-local/config

+
+ifeq "novacustom-v560tu" "$(BOARD)"
+
+export CONFIG_COREBOOT_LOCALVERSION="\(coreboot+heads\) v0.9.1"


tlaurion · 2026-04-09T14:47:23Z

config/coreboot-novacustom-v560tu.config

 CONFIG_SOFTWARE_CONNECTION_MANAGER=y
 CONFIG_SOC_INTEL_COMMON_BLOCK_VTD=y
-CONFIG_ENABLE_EARLY_DMA_PROTECTION=y
+# CONFIG_ENABLE_EARLY_DMA_PROTECTION is not set


not fixed by bumping fsp?

tlaurion · 2026-04-09T14:48:01Z

config/coreboot-novacustom-v560tu.config

 CONFIG_GENERIC_LINEAR_FRAMEBUFFER=y
 CONFIG_LINEAR_FRAMEBUFFER=y
-CONFIG_BOOTSPLASH=y
+# CONFIG_BOOTSPLASH is not set


please review config from other pr

tlaurion · 2026-04-09T14:49:21Z

site-local/config

+ifeq "novacustom-v560tu" "$(BOARD)"
+
+export CONFIG_COREBOOT_LOCALVERSION="\(coreboot+heads\) v0.9.1"
+export CONFIG_COREBOOT_SMBIOS_PRODUCT_NAME="V54x_6x_TU"


branding overrides (bootslash and site-local/config should be in dasharo fork not upstream

tlaurion

see review, most importantly bootsplash removal, site-local override and coreboot cojfigs in oldconfig which seem still uefi release oriented.

- Remove leading tabs from ifeq variable assignments (Make parse error) - Move post-build steps (cp, dd, touch) out of dasharo-ec_target into a proper Make rule; _target is now only make arguments - Set dasharo-ec_output to ec.rom (the actual artifact, not .built) - Add -$(BOARD) suffix to dasharo-ec_base_dir and dasharo-ec_dir so v540tu and v560tu maintain independent build trees and ec.rom files - Add explicit rule to copy and zero-pad ec.rom to 128 KB - Fix coreboot copy rule: use FORCE + cmp so the recipe always runs but only updates the destination (and its mtime) when content differs, preventing the mtime race between boards sharing coreboot_base_dir Signed-off-by: Filip Lewiński <filip.lewinski@3mdeb.com>

Signed-off-by: Filip Lewiński <filip.lewinski@3mdeb.com>

tlaurion · 2026-04-09T22:08:13Z

Can't boot qubesos 4.3 iso from this PR nor the other (worst : kernel oops there), here cannot get anaconda.

Can you boot anything?

Also both PR have different coreboot commit and different platform names in config

tlaurion · 2026-04-10T02:06:11Z

One cannot internally upgrade from heads on v540tu either since platforms strings don't match

Notebook (rom) != Clevo (smibios)

…with make BOARD=X coreboot.save_in_oldconfig_format_in_place helper Signed-off-by: Thierry Laurion <insurgo@riseup.net>

tlaurion · 2026-04-10T02:49:50Z

@filipleple please review commit logs of https://github.com/linuxboot/heads/pull/2039/commits

One of those regression testing done in january 4th was f82d7e8


diff --git a/config/coreboot-novacustom-v540tu.config b/config/coreboot-novacustom-v540tu.config
index 25a89cc08c..c9c6776986 100644
--- a/config/coreboot-novacustom-v540tu.config
+++ b/config/coreboot-novacustom-v540tu.config
@@ -126,7 +126,7 @@ CONFIG_DIMM_MAX=4
 CONFIG_DIMM_SPD_SIZE=1024
 CONFIG_FMDFILE=""
 # CONFIG_NO_POST is not set
-CONFIG_MAINBOARD_VENDOR="Notebook"
+CONFIG_MAINBOARD_VENDOR="Clevo"
 CONFIG_CBFS_SIZE=0x1000000
 # CONFIG_CONSOLE_SERIAL is not set
 CONFIG_MAX_CPUS=22
diff --git a/config/coreboot-novacustom-v560tu.config b/config/coreboot-novacustom-v560tu.config
index 9581535533..e82a56eb2d 100644
--- a/config/coreboot-novacustom-v560tu.config
+++ b/config/coreboot-novacustom-v560tu.config
@@ -126,7 +126,7 @@ CONFIG_DIMM_MAX=4
 CONFIG_DIMM_SPD_SIZE=1024
 CONFIG_FMDFILE=""
 # CONFIG_NO_POST is not set
-CONFIG_MAINBOARD_VENDOR="Notebook"
+CONFIG_MAINBOARD_VENDOR="Clevo"
 CONFIG_CBFS_SIZE=0x1000000
 # CONFIG_CONSOLE_SERIAL is not set
 CONFIG_MAX_CPUS=22

If not, we have a problem, we agreed on Clevo string back in #1913. We cannot change it otherwise internal flashing won't be possible.

tlaurion · 2026-04-10T03:22:41Z

Please diff coreboot configs vs pre_release_dasharo_101_rc3 and explain/adapt:

CONFIG_IFDTOOL_DISABLE_ME is not set
CONFIG_DASHARO_FIRMWARE_UPDATE_MODE=y
CONFIG_DRIVERS_GENERIC_CBFS_SERIAL=y
CONFIG_USE_PC_CMOS_ALTCENTURY=y
CONFIG_INTEL_ACM=y
CONFIG_MAINBOARD_VENDOR="Notebook"

macpijan and others added 3 commits April 9, 2026 16:18

modules/dasharo-ec: new module

7f9a7bf

Squashed from: tlaurion@2df1c8b tlaurion@447d464 then, updated EC revision as per: Dasharo/ec#82 (comment) Signed-off-by: Maciej Pijanowski <maciej.pijanowski@3mdeb.com>

Prepare nix based docker image to be bumped to v0.2.9 to include mini…

32ec30a

…mal changes to build Dasharo-EC Signed-off-by: Thierry Laurion <insurgo@riseup.net>

filipleple force-pushed the mtl_release branch from 8cf38e1 to bc4af3d Compare April 9, 2026 14:25

tlaurion reviewed Apr 9, 2026

View reviewed changes

tlaurion requested changes Apr 9, 2026

View reviewed changes

filipleple added 2 commits April 9, 2026 17:38

MTL release: coreboot revision and updated configs

ded3dd5

Signed-off-by: Filip Lewiński <filip.lewinski@3mdeb.com>

filipleple force-pushed the mtl_release branch from bc4af3d to ded3dd5 Compare April 9, 2026 15:46

tlaurion added a commit to tlaurion/heads that referenced this pull request Apr 10, 2026

coreboot configs : save in oldconfigs to com[are with linuxboot#2082 …

980e487

…with make BOARD=X coreboot.save_in_oldconfig_format_in_place helper Signed-off-by: Thierry Laurion <insurgo@riseup.net>

tlaurion added a commit to tlaurion/heads that referenced this pull request Apr 10, 2026

coreboot configs : save in oldconfigs to compare with linuxboot#2082 …

344878c

…with make BOARD=X coreboot.save_in_oldconfig_format_in_place helper Signed-off-by: Thierry Laurion <insurgo@riseup.net>

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Mtl release#2082

Mtl release#2082
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		ifeq "novacustom-v560tu" "$(BOARD)"

		export CONFIG_COREBOOT_LOCALVERSION="\(coreboot+heads\) v0.9.1"

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