[PATCH 10/10] tests/functional/arm: Add MCIMX6UL-EVK boot tests

[Bin Meng <bin.meng@processmission.com>]

The MCIMX6UL-EVK machine supports loading U-Boot proper with the
generic loader and booting Linux directly, but neither path has
functional coverage.

Add a versioned Buildroot asset containing U-Boot, a Linux kernel,
the board DTB, and a 128 MiB SD card image. Exercise both boot paths
and verify that they reach the Buildroot login prompt.

Cover the new test in the existing MCIMX6UL EVK MAINTAINERS entry.

Signed-off-by: Bin Meng <bin.meng@processmission.com>

---

 MAINTAINERS                               |  1 +
 tests/functional/arm/meson.build          |  2 +
 tests/functional/arm/test_mcimx6ul_evk.py | 70 +++++++++++++++++++++++
 3 files changed, 73 insertions(+)
 create mode 100644 tests/functional/arm/test_mcimx6ul_evk.py

diff --git a/MAINTAINERS b/MAINTAINERS
index 4628793dde..45288fb5b9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -909,6 +909,7 @@ F: include/hw/arm/fsl-imx6ul.h
 F: include/hw/display/imx6ul_lcdif.h
 F: include/hw/misc/imx6ul_ccm.h
 F: docs/system/arm/mcimx6ul-evk.rst
+F: tests/functional/arm/test_mcimx6ul_evk.py
 
 MCIMX7D SABRE / i.MX7
 M: Peter Maydell <peter.maydell@linaro.org>
diff --git a/tests/functional/arm/meson.build b/tests/functional/arm/meson.build
index 61b00932db..d8b1408b13 100644
--- a/tests/functional/arm/meson.build
+++ b/tests/functional/arm/meson.build
@@ -20,6 +20,7 @@ test_arm_timeouts = {
   'bpim2u' : 500,
   'collie' : 180,
   'cubieboard' : 360,
+  'mcimx6ul_evk' : 240,
   'orangepi' : 540,
   'quanta_gsj' : 240,
   'raspi2' : 120,
@@ -59,6 +60,7 @@ tests_arm_system_thorough = [
   'emcraft_sf2',
   'integratorcp',
   'max78000fthr',
+  'mcimx6ul_evk',
   'microbit',
   'orangepi',
   'quanta_gsj',
diff --git a/tests/functional/arm/test_mcimx6ul_evk.py b/tests/functional/arm/test_mcimx6ul_evk.py
new file mode 100644
index 0000000000..687a0e9032
--- /dev/null
+++ b/tests/functional/arm/test_mcimx6ul_evk.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python3
+#
+# Functional tests for the NXP MCIMX6UL-EVK machine
+#
+# Copyright (c) 2026 Process Mission
+#
+# Author:
+#   Bin Meng <bin.meng@processmission.com>
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+from qemu_test import Asset, LinuxKernelTest, skipIfMissingCommands
+
+
+class MCIMX6ULEVKMachine(LinuxKernelTest):
+
+    ASSET_BUILDROOT = Asset(
+        ('https://github.com/processmission/qemu-machine-images/releases/download/'
+         'v1.0.0/arm-mcimx6ul-evk-v1.0.0.tar.zst'),
+        'bedda89c848224dfc5108629975bc379ae5f4d8896d681521f2d485a0fb517aa')
+
+    def _prepare_images(self):
+        self.set_machine('mcimx6ul-evk')
+
+        archive_path = self.uncompress(
+            self.ASSET_BUILDROOT,
+            target='arm-mcimx6ul-evk-v1.0.0.tar',
+            format='zstd')
+        self.archive_extract(archive_path, format='tar')
+
+        self.vm.set_console()
+        self.vm.add_args(
+            '-m', '512M',
+            '-drive',
+            'file=' + self.scratch_file('images', 'sdcard.img') +
+            ',if=sd,index=1,format=raw',
+            '-no-reboot')
+
+    @skipIfMissingCommands('zstd')
+    def test_uboot_boot(self):
+        self._prepare_images()
+
+        self.vm.add_args(
+            '-device',
+            'loader,file=' + self.scratch_file('images', 'u-boot.bin') +
+            ',addr=0x87800000,cpu-num=0')
+        self.vm.launch()
+
+        self.wait_for_console_pattern('U-Boot 2024.07')
+        self.wait_for_console_pattern('Starting kernel ...')
+        self.wait_for_console_pattern('buildroot login:')
+
+    @skipIfMissingCommands('zstd')
+    def test_linux_boot(self):
+        self._prepare_images()
+
+        self.vm.add_args(
+            '-kernel', self.scratch_file('images', 'zImage'),
+            '-dtb', self.scratch_file('images',
+                                      'imx6ul-14x14-evk.dtb'),
+            '-append',
+            'console=ttymxc0,115200 root=/dev/mmcblk1p2 rootwait rw')
+        self.vm.launch()
+
+        self.wait_for_console_pattern('Linux version')
+        self.wait_for_console_pattern('buildroot login:')
+
+
+if __name__ == '__main__':
+    LinuxKernelTest.main()
-- 
2.53.0