diff --git a/board/csky/gx6605s/patches/linux/0001-csky-update-cmdline-for-serial-console-and-rootfs-on.patch b/board/csky/gx6605s/patches/linux/0001-csky-update-cmdline-for-serial-console-and-rootfs-on.patch
new file mode 100644
index 0000000000..1da1a75400
--- /dev/null
+++ b/board/csky/gx6605s/patches/linux/0001-csky-update-cmdline-for-serial-console-and-rootfs-on.patch
@@ -0,0 +1,25 @@
+From 7e3f2c482bc16537a093e87a27f0d465804a88e4 Mon Sep 17 00:00:00 2001
+From: Julien Olivain <juju@cotds.org>
+Date: Tue, 11 Dec 2018 23:04:46 +0100
+Subject: [PATCH] csky: update cmdline for serial console and rootfs on sda1
+
+Signed-off-by: Julien Olivain <juju@cotds.org>
+---
+ arch/csky/boot/dts/gx6605s.dts | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/arch/csky/boot/dts/gx6605s.dts b/arch/csky/boot/dts/gx6605s.dts
+index ce56106af967..f5d60b21e6f9 100644
+--- a/arch/csky/boot/dts/gx6605s.dts
++++ b/arch/csky/boot/dts/gx6605s.dts
+@@ -155,6 +155,6 @@
+ 	};
+ 
+ 	chosen {
+-		bootargs = "console=tty0 init=/sbin/init root=/dev/sda2 rw rootwait";
++		bootargs = "console=ttyS0,115200 init=/sbin/init root=/dev/sda1 rw rootwait";
+ 	};
+ };
+-- 
+2.19.2
+
diff --git a/configs/csky_gx6605s_defconfig b/configs/csky_gx6605s_defconfig
index 5f39c536ac..d0a2aadc6d 100644
--- a/configs/csky_gx6605s_defconfig
+++ b/configs/csky_gx6605s_defconfig
@@ -1,8 +1,9 @@
 BR2_csky=y
+BR2_GLOBAL_PATCH_DIR="board/csky/gx6605s/patches"
 BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
-BR2_TOOLCHAIN_EXTERNAL_URL="https://github.com/c-sky/tools/raw/master/csky-linux-tools-x86_64-glibc-linux-4.9.2-20170227.tar.gz"
+BR2_TOOLCHAIN_EXTERNAL_URL="https://github.com/c-sky/tools/raw/master/csky-linux-tools-x86_64-glibc-linux-4.9.56-20180128.tar.gz"
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="csky-linux"
-BR2_TOOLCHAIN_EXTERNAL_GCC_4_5=y
+BR2_TOOLCHAIN_EXTERNAL_GCC_6=y
 BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_9=y
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
 BR2_TOOLCHAIN_EXTERNAL_CXX=y
@@ -10,7 +11,7 @@ BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY=y
 BR2_TARGET_GENERIC_GETTY_PORT="ttyS0"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_TARBALL=y
-BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="https://github.com/c-sky/linux-4.9.y/archive/314c498ddc8c43a66ca96ff3af7da98e10fa1cc6.tar.gz"
+BR2_LINUX_KERNEL_CUSTOM_TARBALL_LOCATION="https://github.com/c-sky/linux-4.9.y/archive/6064a9bdf48cefbccc4f6472dd04251f0dec1931.tar.gz"
 BR2_LINUX_KERNEL_DEFCONFIG="gx66xx"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="gx6605s"