board: tq: add TQMa6UL[L]x[L] SOM and MBa6ULx baseboard

The TQMa6UL[L]x is a family of SoMs based on the i.MX6UL[L] SoCs.
They are available either with board connectors or as LGA packages
with solder balls. Add Support for the SoM and its combination with
our MBa6ULx carrier board. For use with the MBa6ULx carrier board,
the LGA variant is soldered onto an adapter board.

Signed-off-by: Nora Schiffer <[email protected]>
Signed-off-by: Max Merchel <[email protected]>

2 files changed, 106 insertions, 0 deletions

diff --git a/doc/board/tq/index.rst b/doc/board/tq/index.rst
index d6dc6101c2c..775957474e7 100644
--- a/doc/board/tq/index.rst
+++ b/doc/board/tq/index.rst
@@ -9,4 +9,5 @@ TQ-Systems
 .. toctree::
    :maxdepth: 2
 
+   tqma6ul
    tqma7
diff --git a/doc/board/tq/tqma6ul.rst b/doc/board/tq/tqma6ul.rst
new file mode 100644
index 00000000000..2b346715642
--- /dev/null
+++ b/doc/board/tq/tqma6ul.rst
@@ -0,0 +1,105 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later or CC-BY-4.0
+
+.. Copyright (c) 2017-2025 TQ-Systems GmbH <[email protected]>,
+.. D-82229 Seefeld, Germany.
+
+########################################
+U-Boot for the TQ-Systems TQMa6x modules
+########################################
+
+The following hardware revisions are supported:
+
+Modules:
+
++------------+----------+
+| TQMa6ULx   | REV.030x |
++------------+----------+
+| TQMa6ULLx  | REV.030x |
++------------+----------+
+| TQMa6ULxL  | REV.030x |
++------------+----------+
+| TQMa6ULLxL | REV.030x |
++------------+----------+
+
+Mainboards:
+
++----------+----------+
+| MBa6ULx  | REV.020x |
++----------+----------+
+
+Hardware on modules TQMa6ULx, TQMa6ULxL, TQMa6ULLx and TQMa6ULLxL
+
+- eMMC
+- RTC
+- PMIC
+- SPI-NOR (optional)
+- EEPROM
+- Temperature sensor
+- RAM (256 MiB / 512 MiB)
+
+Supported hardware on Starterkit MBa6ULx:
+
+- 2 Ethernet PHY connected to FEC0 / FEC1 (usage depends on CPU)
+- SD-card slot
+- UART
+- USB
+
+Note: To change the Ethernet port to use for networking functionality, use the
+U-Boot generic environment variable ``ethact``.
+
+.. code-block:: bash
+
+    setenv ethact <FEC>
+
+***********
+Boot source
+***********
+
+- SD/eMMC
+- USB/SDP (with NXP UUU tool)
+- SPI NOR (functional but requires additional prepended NXP header.
+  Not supported in U-Boot.)
+
+********
+Building
+********
+
+To build U-Boot for the TQ-Systems TQMa6L modules:
+
+.. code-block:: bash
+
+	make <som>_<baseboard>_<boot>_defconfig
+	make
+
+
+**som**  is a placeholder for the module base variant:
+
++------------+------------+----------------+
+| tqma6ulx   | TQMa6ULx   | i.MX6UL        |
++------------+------------+----------------+
+| tqma6ullx  | TQMa6ULLx  | i.MX6ULL       |
++------------+------------+----------------+
+| tqma6ulxl  | TQMa6ULxL  | i.MX6UL (lga)  |
++------------+------------+----------------+
+| tqma6ullxl | TQMa6ULLxL | i.MX6ULL (lga) |
++------------+------------+----------------+
+
+**baseboard** is a placeholder for the mainboard to compile for:
+
++----------+----------+
+| mba6ul   | MBa6ULx  |
++----------+----------+
+
+**boot** is a placeholder for the boot device:
+
++------+---------+
+| mmc  | SD/eMMC |
++------+---------+
+| spi  | SPI-NOR |
++------+---------+
+
+************
+Support Wiki
+************
+
+See `TQ Embedded Wiki for TQMa6ulx <https://support.tq-group.com/en/arm/tqma6ulx>`_.