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| author | Ernest Van Hoecke <ernest.vanhoecke@toradex.com> | 2025-03-07 11:34:13 +0100 |
|---|---|---|
| committer | Fabio Estevam <festevam@gmail.com> | 2025-03-13 15:15:50 -0300 |
| commit | 47d5982c60165bcc17d0328cc9e375a519b279eb (patch) | |
| tree | c63586b22aff98174a547f63b18f62befa52f479 /test/py/tests/test_fs/test_basic.py | |
| parent | 9028da7675ea8084abab8e83484b42af54bd4df6 (diff) | |
board: toradex: apalis/colibri imx6: Detect new v1.2 SoM variant
Apalis/Colibri iMX6 V1.2 will replace the STMPE811 ADC/Touch controller
which is EOL by the TLA2024 ADC and AD7879 touch controller.
To support this new version, we detect the presence of the TLA2024
during boot and set a new environment variable named "variant". This
will allow us and users to select the correct DT easily.
By probing via I2C we have a robust detection method instead of relying
on the existing "board_rev" environment variable which is set by the
config block. Users can use "variant" in their DT selection and do not
have to map the board revision to a device tree.
"variant" environment variable behaviour:
* Empty or absent for all versions below v1.2 (STMPE811)
* "-v1.2" for all versions starting from v1.2 (TLA2024 + AD7879)
Usage example:
setenv fdtfile imx6q-apalis${variant}-${fdt_board}.dtb
Signed-off-by: Ernest Van Hoecke <ernest.vanhoecke@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Diffstat (limited to 'test/py/tests/test_fs/test_basic.py')
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