diff --git a/configs/r8a7795_salvator-x_defconfig b/configs/r8a7795_salvator-x_defconfig
index aae38e8..40712a4 100644
--- a/configs/r8a7795_salvator-x_defconfig
+++ b/configs/r8a7795_salvator-x_defconfig
@@ -8,7 +8,7 @@ CONFIG_SMBIOS_PRODUCT_NAME=""
 CONFIG_FIT=y
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttySC0,115200 rw root=/dev/nfs nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
+CONFIG_BOOTARGS="root=/dev/nfs rw nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
 CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_DEFAULT_FDT_FILE="r8a7795-salvator-x.dtb"
 CONFIG_VERSION_VARIABLE=y
diff --git a/configs/r8a7795_ulcb_defconfig b/configs/r8a7795_ulcb_defconfig
index c341e1a..f1d150b 100644
--- a/configs/r8a7795_ulcb_defconfig
+++ b/configs/r8a7795_ulcb_defconfig
@@ -8,7 +8,7 @@ CONFIG_SMBIOS_PRODUCT_NAME=""
 CONFIG_FIT=y
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttySC0,115200 rw root=/dev/nfs nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
+CONFIG_BOOTARGS="root=/dev/nfs rw nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
 CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_DEFAULT_FDT_FILE="r8a7795-h3ulcb.dtb"
 CONFIG_VERSION_VARIABLE=y
diff --git a/configs/r8a77965_salvator-x_defconfig b/configs/r8a77965_salvator-x_defconfig
index 567f639..72549e2 100644
--- a/configs/r8a77965_salvator-x_defconfig
+++ b/configs/r8a77965_salvator-x_defconfig
@@ -9,7 +9,7 @@ CONFIG_SMBIOS_PRODUCT_NAME=""
 CONFIG_FIT=y
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttySC0,115200 rw root=/dev/nfs nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
+CONFIG_BOOTARGS="root=/dev/nfs rw nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
 CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_DEFAULT_FDT_FILE="r8a77965-salvator-x.dtb"
 CONFIG_VERSION_VARIABLE=y
diff --git a/configs/r8a7796_salvator-x_defconfig b/configs/r8a7796_salvator-x_defconfig
index e3551a8..7c39268 100644
--- a/configs/r8a7796_salvator-x_defconfig
+++ b/configs/r8a7796_salvator-x_defconfig
@@ -9,7 +9,7 @@ CONFIG_SMBIOS_PRODUCT_NAME=""
 CONFIG_FIT=y
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttySC0,115200 rw root=/dev/nfs nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
+CONFIG_BOOTARGS="root=/dev/nfs rw nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
 CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_DEFAULT_FDT_FILE="r8a7796-salvator-x.dtb"
 CONFIG_VERSION_VARIABLE=y
diff --git a/configs/r8a7796_ulcb_defconfig b/configs/r8a7796_ulcb_defconfig
index 8086261..ef5c944 100644
--- a/configs/r8a7796_ulcb_defconfig
+++ b/configs/r8a7796_ulcb_defconfig
@@ -9,7 +9,7 @@ CONFIG_SMBIOS_PRODUCT_NAME=""
 CONFIG_FIT=y
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttySC0,115200 rw root=/dev/nfs nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
+CONFIG_BOOTARGS="root=/dev/nfs rw nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
 CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_DEFAULT_FDT_FILE="r8a7796-m3ulcb.dtb"
 CONFIG_VERSION_VARIABLE=y
diff --git a/configs/r8a77970_eagle_defconfig b/configs/r8a77970_eagle_defconfig
index 0cd47c1..67ef263 100644
--- a/configs/r8a77970_eagle_defconfig
+++ b/configs/r8a77970_eagle_defconfig
@@ -9,7 +9,7 @@ CONFIG_SMBIOS_PRODUCT_NAME=""
 CONFIG_FIT=y
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttySC0,115200 rw root=/dev/nfs nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
+CONFIG_BOOTARGS="root=/dev/nfs rw nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
 CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_DEFAULT_FDT_FILE="r8a77970-eagle.dtb"
 CONFIG_VERSION_VARIABLE=y
diff --git a/configs/r8a77990_ebisu_defconfig b/configs/r8a77990_ebisu_defconfig
index 4f9ebad..7363310 100644
--- a/configs/r8a77990_ebisu_defconfig
+++ b/configs/r8a77990_ebisu_defconfig
@@ -9,7 +9,7 @@ CONFIG_SMBIOS_PRODUCT_NAME=""
 CONFIG_FIT=y
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttySC0,115200"
+CONFIG_BOOTARGS="root=/dev/nfs rw nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
 CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_DEFAULT_FDT_FILE="r8a77990-ebisu.dtb"
 CONFIG_VERSION_VARIABLE=y
diff --git a/configs/r8a77995_draak_defconfig b/configs/r8a77995_draak_defconfig
index ca89a12..0f1189b 100644
--- a/configs/r8a77995_draak_defconfig
+++ b/configs/r8a77995_draak_defconfig
@@ -9,7 +9,7 @@ CONFIG_SMBIOS_PRODUCT_NAME=""
 CONFIG_FIT=y
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_USE_BOOTARGS=y
-CONFIG_BOOTARGS="console=ttySC0,115200 rw root=/dev/nfs nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
+CONFIG_BOOTARGS="root=/dev/nfs rw nfsroot=192.168.0.1:/export/rfs ip=192.168.0.20"
 CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_DEFAULT_FDT_FILE="r8a77995-draak.dtb"
 CONFIG_VERSION_VARIABLE=y