ls1028ardb: Move environment variables to .env file

Move the bulk of the board environment from CFG_EXTRA_ENV_SETTINGS in
ls1028ardb.h to board/nxp/ls1028a/ls1028ardb.env. Because the board
directory is shared with ls1028aqds, the file is selected through
CONFIG_ENV_SOURCE_FILE rather than the SYS_BOARD default.

The distro_bootcmd machinery cannot be expressed in a .env file. The
BOOTENV macro expands to environment text with embedded NUL separators,
and the board overrides three distro variables (boot_scripts,
boot_a_script and scan_dev_for_boot_part) that must follow BOOTENV to
take effect. BOOTENV and those three overrides therefore remain in
CFG_EXTRA_ENV_SETTINGS, which is concatenated after the .env text, while
every other variable moves to the .env file.

The resulting default environment is functionally unchanged for both the
ls1028ardb_tfa and ls1028ardb_tfa_SECURE_BOOT defconfigs. This was
verified with an order aware comparison of the default environment before
and after the change. The only difference is that three accidental double
spaces in xspi_bootcmd, sd_bootcmd and emmc_bootcmd collapse to single
spaces, because the preprocessor normalises whitespace in the now
unquoted text, which does not affect command parsing.

Signed-off-by: Aristo Chen <[email protected]>
Signed-off-by: Peng Fan <[email protected]>

0 files changed, 0 insertions, 0 deletions