Support yocto for rk3399

Change-Id: I6f1cb3e796307f1240d99d2fa9f9b4f55dd7ed1a
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>

common/build.sh

@@ -131,7 +131,26 @@ function build_multi-npu_boot(){
 }
 
 function build_yocto(){
-	echo "we don't support yocto at this time"
+	if [ -z "$RK_YOCTO_MACHINE" ]; then
+		echo "This board doesn't support yocto!"
+		exit 1
+	fi
+
+	echo "=========Start build ramboot========="
+	echo "TARGET_MACHINE=$RK_YOCTO_MACHINE"
+	echo "====================================="
+
+	cd yocto
+	ln -sf $RK_YOCTO_MACHINE.conf build/conf/local.conf
+	source oe-init-build-env
+	bitbake core-image-minimal
+
+	if [ $? -eq 0 ]; then
+		echo "====Build yocto ok!===="
+	else
+		echo "====Build yocto failed!===="
+		exit 1
+	fi
 }
 
 function build_debian(){
@@ -155,7 +174,7 @@ function build_rootfs(){
 	case "$1" in
 		yocto)
 			build_yocto
-			ROOTFS_IMG=
+			ROOTFS_IMG=yocto/build/tmp/deploy/images/$RK_YOCTO_MACHINE/rootfs.img
 			;;
 		debian)
 			build_debian

common/yocto-install.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+[ -z "$1" ] && return
+
+ROOTDIR=$1
+echo "Runing install script for $ROOTDIR ..."
+
+# For oem and userdata partitions
+mkdir -p "${ROOTDIR}/oem" "${ROOTDIR}/userdata"
+cat << EOF >> "${ROOTDIR}/etc/fstab"
+PARTLABEL=oem        /oem                 auto       defaults              0  2
+PARTLABEL=userdata   /userdata            auto       defaults              0  2
+EOF

rk3399/BoardConfig.mk

@@ -28,6 +28,8 @@ export RK_JOBS=12
 export RK_TARGET_PRODUCT=rk3399
 # Set rootfs type, including ext2 ext4 squashfs
 export RK_ROOTFS_TYPE=ext4
+# yocto machine
+export RK_YOCTO_MACHINE=rockchip-rk3399-sapphire-excavator
 # rootfs image path
 export RK_ROOTFS_IMG=rockdev/rootfs.${RK_ROOTFS_TYPE}
 # Set oem partition type, including ext2 squashfs