diff --git a/configs/tqma6dl_mba6_mmc_defconfig b/configs/tqma6dl_mba6_mmc_defconfig
index a02ee92..3f19430 100644
--- a/configs/tqma6dl_mba6_mmc_defconfig
+++ b/configs/tqma6dl_mba6_mmc_defconfig
@@ -61,4 +61,4 @@
 CONFIG_DM_REGULATOR_PFUZE100=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
-# CONFIG_SPECIFY_CONSOLE_INDEX is not set
+CONFIG_DM_SERIAL=y
diff --git a/configs/tqma6dl_mba6_spi_defconfig b/configs/tqma6dl_mba6_spi_defconfig
index 8f7e0ac..1a30d58 100644
--- a/configs/tqma6dl_mba6_spi_defconfig
+++ b/configs/tqma6dl_mba6_spi_defconfig
@@ -65,4 +65,4 @@
 CONFIG_DM_REGULATOR_PFUZE100=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
-# CONFIG_SPECIFY_CONSOLE_INDEX is not set
+CONFIG_DM_SERIAL=y
diff --git a/configs/tqma6q_mba6_mmc_defconfig b/configs/tqma6q_mba6_mmc_defconfig
index 48822f3..aa3ee0e 100644
--- a/configs/tqma6q_mba6_mmc_defconfig
+++ b/configs/tqma6q_mba6_mmc_defconfig
@@ -61,4 +61,4 @@
 CONFIG_DM_REGULATOR_PFUZE100=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
-# CONFIG_SPECIFY_CONSOLE_INDEX is not set
+CONFIG_DM_SERIAL=y
diff --git a/configs/tqma6q_mba6_spi_defconfig b/configs/tqma6q_mba6_spi_defconfig
index ed77426..5407d09 100644
--- a/configs/tqma6q_mba6_spi_defconfig
+++ b/configs/tqma6q_mba6_spi_defconfig
@@ -65,4 +65,4 @@
 CONFIG_DM_REGULATOR_PFUZE100=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
-# CONFIG_SPECIFY_CONSOLE_INDEX is not set
+CONFIG_DM_SERIAL=y
diff --git a/configs/tqma6s_mba6_mmc_defconfig b/configs/tqma6s_mba6_mmc_defconfig
index 9400c64..84eb98f 100644
--- a/configs/tqma6s_mba6_mmc_defconfig
+++ b/configs/tqma6s_mba6_mmc_defconfig
@@ -61,4 +61,4 @@
 CONFIG_DM_REGULATOR_PFUZE100=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
-# CONFIG_SPECIFY_CONSOLE_INDEX is not set
+CONFIG_DM_SERIAL=y
diff --git a/configs/tqma6s_mba6_spi_defconfig b/configs/tqma6s_mba6_spi_defconfig
index ddbf9a7..76e447a 100644
--- a/configs/tqma6s_mba6_spi_defconfig
+++ b/configs/tqma6s_mba6_spi_defconfig
@@ -65,4 +65,4 @@
 CONFIG_DM_REGULATOR_PFUZE100=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
-# CONFIG_SPECIFY_CONSOLE_INDEX is not set
+CONFIG_DM_SERIAL=y