Add ADI board support, packages, and build infrastructure by mhennerich · Pull Request #19 · analogdevicesinc/br2-external

mhennerich · 2026-03-31T12:33:11Z

Summary

Add board support for PlutoSDR (ADALM-PLUTO), ADALM2000 (M2K), and Sidekiq Z2
Add shared ADI board files and rootfs overlay
Add br2-external package definitions for the ADI IIO ecosystem (libad9361-iio, libini, libm2k, ad936x_ref_cal, fru-tools, jesd204b_status, poll_sysfs, python-pygccxml)
Add platform defconfigs for PlutoSDR, ADALM2000, Sidekiq Z2, MicroBlaze, and NIOS2
Add buildroot patches for libiio, gnuradio, dropbear host build, and linux simpleImage ELF copy

Test plan

Build PlutoSDR: make zynq_pluto_defconfig && make
Build ADALM2000: make zynq_m2k_defconfig && make
Build Sidekiq Z2: make zynq_sidekiqz2_defconfig && make

pamolloy · 2026-06-18T13:37:52Z

The patches were added in analogdevicesinc/buildroot#113 and analogdevicesinc/buildroot#118

pamolloy · 2026-06-18T13:39:29Z

Also needs to be added to CI/CD

pamolloy · 2026-06-18T13:41:18Z

And would be nice to rename board/adi/common to something more descriptive since it isn't actually common for all ADI boards (i.e. the ADSP support that already exists)

nunojsa

Just some nitpick and I think already mentioned it regarding the rather old vivado configs? Other thing that came to mind is the sidekiqz project? Is it still supported? Looks like it's not on main hdl any longer

nunojsa · 2026-06-18T14:23:13Z

+	unix2dos ${FILE}
+}
+
+calibrate () {


nitpick: In more than one place we have this space before (). Would be nice to clean it up. I guess something an agent can easily do?

gastmaier · 2026-06-22T16:04:57Z

Resolved pending dependencies with local runs

$ container-run --root adi/br2_external:latest
$ make -j$(nproc)
[ some missing dep ]
$ zypper install <dep> # and add to the Containerfile
$ make -j$(nproc)

then drop nios2, used

$ cr --mount-ai adi/br2_external:latest
$ claude
❯ make BR2_EXTERNAL="${PWD}/.." nios2_adi_rootfs_defconfig ; make -j20
  #
  # configuration written to /tmp/br2-external/buildroot/.config
  #
  Makefile.legacy:9: *** "You have legacy configuration in your .config! Please check your configuration.".  Stop.
> The nios2 architecture was dropped from Buildroot in commit 6775ccc5a1 (January 9, 2025). You need to use a Buildroot version before that commit.

There is no fix but to build with < gcc-15, buildroot < 6775ccc5a1 .

gastmaier · 2026-06-22T16:48:17Z

libini needs bumping cmake 3.1. CMake 4.0 (e46695bbe4) removes support to cmake < 3.5.
https://github.com/pcercuei/libini (is already 3.10)

gastmaier · 2026-06-24T18:12:17Z

It is not clear to me why

board/pluto/post-build.sh
board/m2k/post-build.sh

are different.
Shouldn't they be almost identical?

In particular, pluto version introduces templating board/pluto/index.html and some ROOTPASSWD mechanism, as well as a pluto_reboot as symbolic link to device_reboot

Board files, init scripts, post-build script, MSD overlay, busybox config, and WPA supplicant support for the ADALM-PLUTO (PlutoSDR) platform. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

Board files, init scripts, post-build script, MSD overlay, busybox config, and calibration data for the ADALM2000 (M2k) platform. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

Common networking init script, FRU init script, post-build script, and QUADMXFE FRU binary files shared across microblaze/NIOS2 boards. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

Add libini, libad9361-iio, and libm2k packages for the ADI IIO ecosystem. These provide INI config parsing, AD9361 multi-chip sync, and ADALM2000 device interfacing respectively. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

Tools to display and manipulate FMC FRU information. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

pamolloy · 2026-06-26T10:37:23Z

@@ -0,0 +1,39 @@
+BUILDROOT_VERSION ?= adi-2026.02-y


The top level custom ADI Makefile and patch files mimic Yocto and does not follow mainline Buildroot. This is a custom implementation that also does not follow the standard upstream approach which is already followed by ADSP.

pamolloy · 2026-06-26T10:40:50Z

Please also document your changes in the readme.md.

mhennerich · 2026-06-26T11:48:55Z

And would be nice to rename board/adi/common to something more descriptive since it isn't actually common for all ADI boards (i.e. the ADSP support that already exists)

It looks like the directories got moved from board/adi/ into board/. It would be nice to keep our boards in board/adi/ since it matches the structure from Buildroot

ok

nunojsa · 2026-06-29T13:04:03Z

+BR2_PACKAGE_JESD204B_STATUS=y
+BR2_TARGET_ROOTFS_CPIO=y
+BR2_TARGET_ROOTFS_CPIO_GZIP=y
+BR2_PACKAGE_HOST_DROPBEAR=y


This is being removed in a follow up patch... So I would say to just no add it here?

I'll rebase the entire series and then this will be gone

pamolloy

Note there is a fixup commit currently on the branch

Add defconfigs for PlutoSDR, ADALM2000, Sidekiq Z2, MicroBlaze, and NIOS2 ADI platforms. Paths updated to use BR2_EXTERNAL_ADI_PATH. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

These patches capture ADI-specific changes to upstream buildroot packages that cannot be handled via br2-external: - 0001: libiio bump to v0.26 with hwmon and local config support - 0002: gnuradio python executable and dependency fixes - 0003: dropbear host build support (dropbearkey) - 0004: linux.mk simpleImage ELF copy to output - 0005: skeleton fstab ptmxmode removal - 0006: python-pybind patch whitespace fix Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

Add Azure Pipelines, Travis CI configuration, and CI helper scripts migrated from the buildroot fork. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

- Only eval BR2_ prefixed variables from .config to avoid errors from Make-level variables (TOPDIR, BASE_DIR, etc.) that are not valid shell - Create dummy LICENSE.html and VERSIONS files when not building the official image, as the real LICENSE.html is generated via 'make legal-info' and a post-processing script Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

Point libiio at commit da72b6193911e8fc242422bea5bef90e23c3577d, the tip of the libiio-v0 branch. Regenerate all patches against buildroot 2025.05. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

The Linaro ARM 2018.05 external toolchain was removed in buildroot 2025.11. Replace with the ARM ARM 14.2.rel1 toolchain which is the direct successor. Also regenerate buildroot patches to apply cleanly against 2025.05: - Remove obsolete python-pybind whitespace patch (fixed upstream) - Update fstab patch context for upstream changes - Regenerate libiio patch from actual diff Note: nios2 defconfigs cannot be used with buildroot >= 2025.02 as the nios2 architecture was removed entirely. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

The Makefile clones upstream buildroot at a pinned version, applies ADI patches from patches/buildroot/, and forwards all make targets with BR2_EXTERNAL set automatically. Patch application is idempotent, skipping already-applied patches. Usage: make buildroot # clone + patch make buildroot-patch # re-apply patches make zynq_pluto_defconfig # load defconfig make # build Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

The host-dropbear package was never built during a clean build because package/Config.in.host did not source package/dropbear/Config.in.host, causing BR2_PACKAGE_HOST_DROPBEAR=y to be silently dropped by Kconfig. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

Signed-off-by: Jorge Marques <jorge.marques@analog.com>

zlib is required for microblaze_*_defconfig Signed-off-by: Jorge Marques <jorge.marques@analog.com>

In hardened enviroments, the umask is set to a more restrictive value through the systemd UMask parameter , but can be adjusted at the execution level. If not set and under such circuntances, will trigger ERROR: OE-core's config sanity checker detected .... Please use a umask which allows a+rx and u+rwx Signed-off-by: Jorge Marques <jorge.marques@analog.com>

Commit 5e12a2b955390e973473fb5b0993d4eeac2e14dd raises cmake version to support cmake 4. Commit 94fb7036f0541e6d655d80610b3eb04aea580a69 from the same history updates minor collaterals to support current LTS distros. Signed-off-by: Jorge Marques <jorge.marques@analog.com>

Group the ADI boards under a common board/adi/ namespace alongside the existing board/adi/ev-sc598-som/. Update defconfig path references accordingly; inter-board ${BOARD_DIR}/../pluto/ relative paths in post-build scripts remain valid as all three boards stay siblings. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

mhennerich assigned pamolloy, gastmaier and nunojsa Jun 18, 2026

pamolloy assigned mhennerich and unassigned pamolloy, gastmaier and nunojsa Jun 18, 2026

pamolloy requested review from gastmaier, nunojsa and pamolloy June 18, 2026 13:38

pamolloy requested a review from ozan956 June 18, 2026 13:41

pamolloy reviewed Jun 18, 2026

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Comment thread configs/microblaze_adi_rootfs_vivado_2018_3_defconfig Outdated

nunojsa reviewed Jun 18, 2026

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mhennerich force-pushed the staging/add-adi-boards-packages-pr branch 2 times, most recently from 4e00d38 to bfa8975 Compare June 22, 2026 15:09

gastmaier mentioned this pull request Jun 24, 2026

CMake: raise minimum version analogdevicesinc/libm2k#395

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gastmaier approved these changes Jun 25, 2026

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mhennerich force-pushed the staging/add-adi-boards-packages-pr branch 2 times, most recently from 728aac7 to 512c8bb Compare June 25, 2026 11:23

mhennerich added 5 commits June 25, 2026 13:26

board/pluto: add PlutoSDR board support

605c919

Board files, init scripts, post-build script, MSD overlay, busybox config, and WPA supplicant support for the ADALM-PLUTO (PlutoSDR) platform. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

board/m2k: add ADALM2000 board support

5705cc0

Board files, init scripts, post-build script, MSD overlay, busybox config, and calibration data for the ADALM2000 (M2k) platform. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

board/microblaze/common: add shared microblaze/NIOS2 board files

0749d50

Common networking init script, FRU init script, post-build script, and QUADMXFE FRU binary files shared across microblaze/NIOS2 boards. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

package: add IIO ecosystem packages

7d79ec5

Add libini, libad9361-iio, and libm2k packages for the ADI IIO ecosystem. These provide INI config parsing, AD9361 multi-chip sync, and ADALM2000 device interfacing respectively. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

package/fru-tools: add FMC FRU tools

ee13fe4

Tools to display and manipulate FMC FRU information. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

pamolloy reviewed Jun 26, 2026

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Comment thread patches/buildroot/0003-package-dropbear-add-host-build-support.patch

pamolloy reviewed Jun 26, 2026

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Comment thread .github/workflows/build.yaml

pamolloy requested changes Jun 26, 2026

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mhennerich force-pushed the staging/add-adi-boards-packages-pr branch from cb976e0 to 13e35d7 Compare June 29, 2026 09:28

nunojsa reviewed Jun 29, 2026

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pamolloy approved these changes Jun 29, 2026

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gastmaier force-pushed the staging/add-adi-boards-packages-pr branch from 67ab143 to 7020e1c Compare June 29, 2026 13:44

mhennerich and others added 13 commits June 29, 2026 15:53

configs: add ADI platform defconfigs

4d8c522

Add defconfigs for PlutoSDR, ADALM2000, Sidekiq Z2, MicroBlaze, and NIOS2 ADI platforms. Paths updated to use BR2_EXTERNAL_ADI_PATH. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

ci: add CI configuration and build scripts

486f852

Add Azure Pipelines, Travis CI configuration, and CI helper scripts migrated from the buildroot fork. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

package/libm2k: bump to v0.9.0

486dd8a

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

package/jesd204b_status: bump to v0.2

c9f4e4f

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

patches/buildroot: update libiio to tip of libiio-v0 branch

d3503ca

Point libiio at commit da72b6193911e8fc242422bea5bef90e23c3577d, the tip of the libiio-v0 branch. Regenerate all patches against buildroot 2025.05. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

ci/Containerfile: default to node24

bc33d7a

Signed-off-by: Jorge Marques <jorge.marques@analog.com>

ci/Containerfile: add zlib-devel

2b0b252

zlib is required for microblaze_*_defconfig Signed-off-by: Jorge Marques <jorge.marques@analog.com>

mhennerich force-pushed the staging/add-adi-boards-packages-pr branch from 7020e1c to 677f64b Compare June 29, 2026 13:54

nunojsa approved these changes Jun 29, 2026

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gastmaier and others added 3 commits June 30, 2026 11:20

package/fru-tools: bump to v0.9.0

d3e4328

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>

mhennerich force-pushed the staging/add-adi-boards-packages-pr branch from 79ae182 to d3e4328 Compare June 30, 2026 09:22

mhennerich merged commit dd6d34f into main Jun 30, 2026
6 checks passed

mhennerich deleted the staging/add-adi-boards-packages-pr branch June 30, 2026 10:50

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