x is a placeholder for the CPU variant
q - means i.MX6Q/D: TQMa6Q (i.MX6Q) and TQMa6D (i.MX6D)
+dl - means i.MX6DL: TQMa6DL (i.MX6DL)
s - means i.MX6S: TQMa6S (i.MX6S)
baseboard is a placeholder for the boot device
tqma6q_mba6_mmc_config
tqma6q_mba6_spi_config
+tqma6dl_mba6_mmc_config
+tqma6dl_mba6_spi_config
tqma6s_mba6_mmc_config
tqma6s_mba6_spi_config