diff --git a/README.md b/README.md
index bc65df77..ada1727d 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,10 @@
 # phytium-linux-buildroot
 Buildroot是一种简单、高效且易于使用的工具，可以通过交叉编译生成嵌入式Linux系统。Buildroot的用户手册位于docs/manual/manual.pdf。  
-phytium-linux-buildroot基于Buildroot，适配了飞腾嵌入式CPU、桌面CPU相关开发板，支持ubuntu文件系统、debian文件系统、initrd文件系统、基于busybox最小文件系统的编译。
+phytium-linux-buildroot基于Buildroot，适配了飞腾E2000，D2000，FT-2000/4等CPU和X100套片，支持ubuntu文件系统、debian文件系统、initrd文件系统、基于busybox最小文件系统的编译。
+
+# 预备知识
+Buildroot涉及了rootfs、make、Kconfig、Linux command、Shell scripts、U-Boot、Linux kernel、dts等相关知识，了解与熟悉它们有助于Buildroot的使用。  
+了解上述知识，可以参考Wiki：[相关知识与学习链接](https://gitee.com/phytium_embedded/phytium-linux-buildroot/wikis/%E7%9B%B8%E5%85%B3%E7%9F%A5%E8%AF%86%E4%B8%8E%E5%AD%A6%E4%B9%A0%E9%93%BE%E6%8E%A5)
 
 # 开发环境
 ## 系统要求
@@ -60,6 +64,7 @@ config文件是功能扩展配置文件，具体的文件及功能如下：
 | config | 功能 |
 |------------------------|--------|
 | linux_xxx.config | 内核配置文件，含有linux 4.19、4.19 rt和5.10 rt内核版本 |
+| ubuntu_20.04.config | Ubuntu20.04 |
 | desktop.config | XFCE桌面 |
 | e2000_optee.config | Phytium-optee |
 | xenomai_xxx.config | cobalt_4.19、cobalt_5.10、mercury_4.19和mercury_5.10 |
@@ -67,14 +72,15 @@ config文件是功能扩展配置文件，具体的文件及功能如下：
 | jailhouse.config | jailhouse |
 | x100.config | X100 |
 | qt5_eglfs.config | 无桌面qt5 eglfs，需要x100.config的支持 |
+| openamp_xxx.config | OpenAMP |
 | phytiumpi_sdcard.config | 飞腾派配置文件 |
 ## 配置文件的组合
 defconfig可以和config文件进行组合，用以扩展特定的功能，defconfig与config的组合关系如下：
 | deconfig | config |
 |------------------------|--------|
-| phytium_ubuntu_defconfig | linux_xxx.config、desktop.config、e2000_optee.config、xenomai_xxx.config、ethercat.config、jailhouse.config、x100.config、qt5_eglfs.config、phytiumpi_sdcard.config |
-| phytium_debian_defconfig | linux_xxx.config、desktop.config、e2000_optee.config、xenomai_xxx.config、ethercat.config、jailhouse.config、x100.config、qt5_eglfs.config、phytiumpi_sdcard.config |
-| phytium_defconfig | linux_xxx.config、e2000_optee.config、phytiumpi_sdcard.config、xenomai_xxx.config、ethercat.config、jailhouse.config |
+| phytium_ubuntu_defconfig | linux_xxx.config、ubuntu_20.04.config、desktop.config、e2000_optee.config、xenomai_xxx.config、ethercat.config、jailhouse.config、x100.config、qt5_eglfs.config、openamp_xxx.config、phytiumpi_sdcard.config |
+| phytium_debian_defconfig | linux_xxx.config、desktop.config、e2000_optee.config、xenomai_xxx.config、ethercat.config、jailhouse.config、x100.config、qt5_eglfs.config、openamp_xxx.config、phytiumpi_sdcard.config |
+| phytium_defconfig | linux_xxx.config、e2000_optee.config、phytiumpi_sdcard.config、xenomai_xxx.config、ethercat.config、jailhouse.config、openamp_xxx.config |
 | phytium_initrd_defconfig |  |
 
 # 编译文件系统
@@ -115,6 +121,15 @@ configs/linux_5.10_rt.config
 （3）镜像的输出位置  
 生成的根文件系统、内核、img 镜像位于output/images目录。
 
+### 更换Ubuntu版本
+使用phytium_ubuntu_defconfig编译的Ubuntu系统，默认版本是Ubuntu22.04，如果需要编译Ubuntu20.04请执行：  
+（1）使用phytium_ubuntu_defconfig作为基础配置项，合并支持Ubuntu20.04的配置：  
+`$ ./support/kconfig/merge_config.sh configs/phytium_ubuntu_defconfig configs/ubuntu_20.04.config`  
+（2）编译  
+`$ make`  
+（3）镜像的输出位置  
+生成的根文件系统、内核、img 镜像位于output/images目录。
+
 ### 支持XFCE桌面
 （1）使用phytium_debian_defconfig或phytium_ubuntu_defconfig作为基础配置项，合并支持desktop的配置：  
 `$ ./support/kconfig/merge_config.sh configs/phytium_xxx_defconfig configs/desktop.config`  
@@ -239,6 +254,23 @@ $ make
 qt5相关的文件被安装到根文件系统的/usr目录：
 头文件安装到/usr/include/qt5，库安装到/usr/lib，plugins安装到/usr/lib/qt/plugins，examples安装到/usr/lib/qt/examples。
 
+### 支持OpenAMP
+本项目还支持编译OpenAMP，手动编译OpenAMP裸跑二进制镜像请参考：`https://gitee.com/phytium_embedded/phytium-standalone-sdk` ，
+手动编译OpenAMP FreeRTOS二进制镜像请参考：`https://gitee.com/phytium_embedded/phytium-free-rtos-sdk`  
+Buildroot中集成了OpenAMP裸跑二进制镜像和OpenAMP FreeRTOS二进制镜像，支持将OpenAMP二进制镜像、用户空间测试程序编译并安装到系统上，OpenAMP支持linux 4.19，linux 5.10内核。如果需要编译OpenAMP请执行：   
+（1）根据自己开发板的CPU型号，修改configs/openamp_standalone.config中的变量BR2_PACKAGE_PHYTIUM_STANDALONE_CPU_NAME，
+以及configs/openamp_free_rtos.config中的变量BR2_PACKAGE_PHYTIUM_FREE_RTOS_CPU_NAME，支持的值有”e2000q”, “phytiumpi”, “d2000”, “ft2004”。  
+（2）使用phytium_debian_defconfig、phytium_ubuntu_defconfig或phytium_defconfig作为基础配置项，合并支持openamp的配置：  
+`./support/kconfig/merge_config.sh configs/phytium_xxx_defconfig configs/openamp_xxx.config`   
+其中，`openamp_xxx.config`为`openamp_standalone.config`或`openamp_free_rtos.config`。  
+（3）编译  
+`$ make`  
+（4）镜像的输出位置  
+生成的根文件系统、内核、img 镜像位于output/images目录。  
+（5）文件的安装路径  
+将OpenAMP二进制镜像openamp_core0.elf安装到/lib/firmware；用户空间测试程序安装到/usr/bin。  
+关于OpenAMP的使用方法等更多信息，请参考`https://gitee.com/phytium_embedded/phytium-embedded-docs/tree/master/open-amp`  
+
 ### initrd
 initrd支持E2000和D2000开发板，如果需要使用initrd，请按照以下步骤编译：  
 （1）配置及编译initrd  
@@ -347,6 +379,7 @@ $ sudo umount /dev/sdb2
 SATA盘：  
 ```
 =>setenv bootargs console=ttyAMA1,115200  audit=0 earlycon=pl011,0x2800d000 root=/dev/sda2 rw;
+=>saveenv;
 =>fatload scsi 0:1 0x90100000 Image;
 =>fatload scsi 0:1 0x90000000 e2000q-demo-board.dtb;
 =>booti 0x90100000 - 0x90000000
@@ -354,11 +387,13 @@ SATA盘：
 U盘：
 ```
 =>setenv bootargs console=ttyAMA1,115200  audit=0 earlycon=pl011,0x2800d000 root=/dev/sda2 rootdelay=5 rw;
+=>saveenv;
 =>usb start
 =>fatload usb 0:1 0x90100000 Image;
 =>fatload usb 0:1 0x90000000 e2000q-demo-board.dtb;
 =>booti 0x90100000 - 0x90000000
 ```
+注：由于执行了saveenv命令，下次启动时不用执行第一条setenv bootargs命令。
 
 ### UEFI启动系统
 如果是使用img 镜像安装系统，将存储设备接到开发板，启动开发板电源，即可自动启动系统。  
@@ -441,12 +476,12 @@ $ make
 1. 下载ubuntu及debian太慢或报错？  
 目前下载ubuntu及debian的源为清华大学镜像，如果遇到下载很慢，或者下载报错：
 `E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?`
-从而导致编译的phytium_e2000_debian_desktop_defconfig或phytium_e2000_ubuntu_desktop_defconfig没有桌面问题，
+从而导致编译的带Xfce桌面的系统没有桌面等问题，
 请将清华源更换为中科大源，即将以下文件
 ```
-board/phytium/common/post-custom-skeleton-ubuntu-base-20.04.sh
+board/phytium/common/post-custom-skeleton-ubuntu.sh
 board/phytium/common/ubuntu-package-installer
-board/phytium/common/post-custom-skeleton-debian-base-11.sh
+board/phytium/common/post-custom-skeleton-debian-11.sh
 board/phytium/common/debian-package-installer
 ```
 中的`mirrors.tuna.tsinghua.edu.cn`改为`mirrors.ustc.edu.cn`
diff --git a/board/phytium/common/debian-package-installer b/board/phytium/common/debian-package-installer
index 64fb5d78..780adc00 100755
--- a/board/phytium/common/debian-package-installer
+++ b/board/phytium/common/debian-package-installer
@@ -62,17 +62,6 @@ do_distrorfs_second_stage() {
 	for pkg in task-xfce-desktop ukui-greeter; do
                 DEBIAN_FRONTEND=noninteractive apt -y install $pkg || true
 	done
-    	if [ $5 = phytiumX100 ]; then 
-        	mkdir -p /usr/local/var/log
-		sed -i '1 a /usr/local/lib' /etc/ld.so.conf.d/aarch64-linux-gnu.conf
-		ldconfig
-        	ln -sf /usr/local/bin/Xorg  /usr/bin/X
-               sed -i '2 a rm -rf /home/*/.config/xfce4/xfconf/xfce-perchannel-xml/xfwm4.xml' /etc/X11/Xsession.d/55xfce4-session
-               sed -i '17 a Environment="LD_LIBRARY_PATH=/usr/local/lib"' /lib/systemd/system/lightdm.service 
-		gpasswd -a lightdm render
-		gpasswd -a lightdm video
-		gpasswd -a lightdm audio
-	fi
 	usermod -a -G video,render,audio user
 
 	ln -sf /lib/systemd/system/lightdm.service /etc/systemd/system/display-manager.service
@@ -83,12 +72,6 @@ do_distrorfs_second_stage() {
 
     fi
 
-    if [ $5 = phytium ]; then
-                echo 'defaults.pcm.!card phytiumpe220xi2'  >> /etc/asound.conf
-                echo 'defaults.ctl.!card phytiumpe220xi2'  >> /etc/asound.conf
-		echo 'default-sink = alsa_output.platform-sound.stereo-fallback' >> /etc/pulse/client.conf
-    fi
-
     # clean cached packages
     apt-get clean
 
diff --git a/board/phytium/common/post-custom-skeleton-debian-11.sh b/board/phytium/common/post-custom-skeleton-debian-11.sh
index a796eba2..c673f8a1 100755
--- a/board/phytium/common/post-custom-skeleton-debian-11.sh
+++ b/board/phytium/common/post-custom-skeleton-debian-11.sh
@@ -154,7 +154,7 @@ setup_distribution_info () {
         tgtfile=$RFSDIR/usr/lib/os-release
         echo NAME=\"$distroname\" > $tgtfile
         echo VERSION=${DISTROTYPE}-$distroversion >> $tgtfile
-        echo ID=Phytium >> $tgtfile
+        echo ID=debian >> $tgtfile
         echo VERSION_ID=$distroversion >> $tgtfile
         echo PRETTY_NAME=\"Ubuntu Built with Buildroot, based on Ubuntu $distroversion LTS\" >> $tgtfile
         echo VERSION_CODENAME=$distro >> $tgtfile
@@ -166,11 +166,7 @@ setup_distribution_info () {
 
 plat_name()
 {
-	if grep -Eq "^BR2_PACKAGE_XORG_ROGUE_UMLIBS=y$" ${BR2_CONFIG}; then
-		echo "phytiumX100"
-	else
-		echo "phytium"
-	fi
+	echo "phytium"
 }
 
 arch_type()
diff --git a/board/phytium/common/post-custom-skeleton-ubuntu-20.04.sh b/board/phytium/common/post-custom-skeleton-ubuntu.sh
similarity index 89%
rename from board/phytium/common/post-custom-skeleton-ubuntu-20.04.sh
rename to board/phytium/common/post-custom-skeleton-ubuntu.sh
index ca5f830f..ce87ed34 100755
--- a/board/phytium/common/post-custom-skeleton-ubuntu-20.04.sh
+++ b/board/phytium/common/post-custom-skeleton-ubuntu.sh
@@ -1,7 +1,5 @@
 #!/usr/bin/env bash
 
-distro=focal
-
 trap recover_from_ctrl_c INT
 
 recover_from_ctrl_c()
@@ -74,7 +72,7 @@ do_distrorfs_first_stage() {
     if [ ! -d $RFSDIR/debootstrap ]; then
         echo "testdeboot"
 	export LANG=en_US.UTF-8
-	sudo debootstrap --arch=$1 --foreign focal $RFSDIR  https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports
+	sudo debootstrap --arch=$1 --foreign $4 $RFSDIR  https://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports
 
 	[ $1 != amd64 -a ! -f $RFSDIR/usr/bin/qemu-${tgtarch}-static ] && sudo cp $(which qemu-${tgtarch}-static) $RFSDIR/usr/bin
 	echo "installing for second-stage ..."
@@ -90,7 +88,7 @@ do_distrorfs_first_stage() {
 	sudo chroot $RFSDIR dpkg --configure -a
     fi
 
-    sudo chroot $RFSDIR ubuntu-package-installer $1 $distro $5 $3 $6 $7
+    sudo chroot $RFSDIR ubuntu-package-installer $1 $4 $5 $3 $6 $7
 	if [ "x$?" != "x0" ]; then
 		 do_recover_from_error "ubuntu-package-installer failed"
 		exit 1
@@ -108,12 +106,12 @@ do_distrorfs_first_stage() {
         chmod +rw -R $RFSDIR/var/lib/snapd/
     fi
 
-    if [ $distro = focal ]; then
+    if [ $4 = focal ]; then
 	echo Ubuntu,20.04 | tee $RFSDIR/etc/.firststagedone 1>/dev/null
-    elif [ $distro = bionic ]; then
-	echo Ubuntu,18.04.5 | tee $RFSDIR/etc/.firststagedone 1>/dev/null
+    elif [ $4 = jammy ]; then
+	echo Ubuntu,22.04 | tee $RFSDIR/etc/.firststagedone 1>/dev/null
     fi
-    setup_distribution_info $5 $2 $1
+    setup_distribution_info $5 $2 $1 $4
 
     #rm $RFSDIR/etc/apt/apt.conf
     rm $RFSDIR/dev/* -rf
@@ -123,6 +121,7 @@ setup_distribution_info () {
     DISTROTYPE=$1
     RFSDIR=$2
     tarch=$3
+    distro=$4
     distroname=`head -1 $RFSDIR/etc/.firststagedone | cut -d, -f1`
     distroversion=`head -1 $RFSDIR/etc/.firststagedone | cut -d, -f2`
     releaseversion="$distroname (based on $DISTROTYPE-$distroversion-base) ${tarch}"
@@ -156,7 +155,7 @@ setup_distribution_info () {
         tgtfile=$RFSDIR/usr/lib/os-release
         echo NAME=\"$distroname\" > $tgtfile
         echo VERSION=${DISTROTYPE}-$distroversion >> $tgtfile
-        echo ID=Phytium >> $tgtfile
+        echo ID=ubuntu >> $tgtfile
         echo VERSION_ID=$distroversion >> $tgtfile
         echo PRETTY_NAME=\"Ubuntu Built with Buildroot, based on Ubuntu $distroversion LTS\" >> $tgtfile
         echo VERSION_CODENAME=$distro >> $tgtfile
@@ -168,11 +167,7 @@ setup_distribution_info () {
 
 plat_name()
 {
-	if grep -Eq "^BR2_PACKAGE_XORG_ROGUE_UMLIBS=y$" ${BR2_CONFIG}; then
-		echo "phytiumX100"
-	else
-		echo "phytium"
-	fi
+	echo "phytium"
 }
 
 arch_type()
@@ -193,6 +188,14 @@ full_rtf()
 	fi
 }
 
+ubuntu_distro()
+{
+	if grep -Eq "^BR2_ROOTFS_SKELETON_UBUNTU_FOCAL=y$" ${BR2_CONFIG}; then
+		echo "focal"
+	else
+		echo "jammy"
+	fi
+}
 
 main()
 {
@@ -200,14 +203,12 @@ main()
 	rm -rf $1/*
 
 	# run first stage do_distrorfs_first_stage arm64 ${1} ubuntu-additional_packages_list focal ubuntu
-	do_distrorfs_first_stage $(arch_type) ${1} ubuntu-additional_packages_list focal ubuntu $(plat_name) $(full_rtf)
+	do_distrorfs_first_stage $(arch_type) ${1} ubuntu-additional_packages_list $(ubuntu_distro) ubuntu $(plat_name) $(full_rtf)
 
 	# change the hostname to "platforms-Ubuntu"
 	echo $(plat_name)-Ubuntu > ${1}/etc/hostname
 
-	if [ $distro = focal ]; then
-		sed -i "s/float(n\[0\])/float(n[0].split()[0])/" ${1}/usr/share/pyshared/lsb_release.py
-	fi
+	sed -i "s/float(n\[0\])/float(n[0].split()[0])/" ${1}/usr/share/pyshared/lsb_release.py
 
 	exit $?
 }
diff --git a/board/phytium/common/ubuntu-package-installer b/board/phytium/common/ubuntu-package-installer
index 0a91d10c..ed5a9da2 100755
--- a/board/phytium/common/ubuntu-package-installer
+++ b/board/phytium/common/ubuntu-package-installer
@@ -34,10 +34,10 @@ do_distrorfs_second_stage() {
     asl=/etc/apt/sources.list
     rm -f $asl
     cat <<-EOF > $asl
-	deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ focal main restricted universe multiverse
-	deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ focal-updates main restricted universe multiverse
-	deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ focal-backports main restricted universe multiverse
-	deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ focal-security main restricted universe multiverse
+	deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ $2 main restricted universe multiverse
+	deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ $2-updates main restricted universe multiverse
+	deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ $2-backports main restricted universe multiverse
+	deb http://mirrors.tuna.tsinghua.edu.cn/ubuntu-ports/ $2-security main restricted universe multiverse
 	EOF
     chmod +777 /tmp
     DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true LC_ALL=C LANGUAGE=C LANG=C \
@@ -60,20 +60,23 @@ do_distrorfs_second_stage() {
 
     echo installed additional packages.
     if [ $6 = desktop ]; then
-	for pkg in xfce4 ukui-greeter firefox; do
+	for pkg in xfce4 ukui-greeter; do
                 DEBIAN_FRONTEND=noninteractive apt -y install $pkg || true
 	done
-    	if [ $5 = phytiumX100 ]; then 
-        	mkdir -p /usr/local/var/log
-		sed -i '1 a /usr/local/lib' /etc/ld.so.conf.d/aarch64-linux-gnu.conf
-		ldconfig
-        	ln -sf /usr/local/bin/Xorg  /usr/bin/X
-		sed -i '2 a rm -rf /home/*/.config/xfce4/xfconf/xfce-perchannel-xml/xfwm4.xml' /etc/X11/Xsession.d/55xfce4-session
-		sed -i '13 a Environment="LD_LIBRARY_PATH=/usr/local/lib"' /lib/systemd/system/lightdm.service
-		gpasswd -a lightdm render
-	        gpasswd -a lightdm video
-        	gpasswd -a lightdm audio
+	if [ $2 = jammy ]; then
+		sed -i 's/debian-x-terminal-emulator/gnome-terminal/g' /etc/xdg/xfce4/helpers.rc || true
+		DEBIAN_FRONTEND=noninteractive apt -y install software-properties-common || true
+		DEBIAN_FRONTEND=noninteractive add-apt-repository -y ppa:mozillateam/ppa || true
+		sed -i 's/ppa.launchpadcontent.net/launchpad.proxy.ustclug.org/g' /etc/apt/sources.list.d/mozillateam-*.list && \
+		DEBIAN_FRONTEND=noninteractive apt -y update || true
+		cat <<-EOF > /etc/apt/preferences.d/mozillateamppa
+		Package: firefox
+		Pin: release o=LP-PPA-mozillateam
+		Pin-Priority: 501
+		EOF
 	fi
+	DEBIAN_FRONTEND=noninteractive apt -y install firefox || true
+
 	usermod -a -G video,render,audio user
 	
 	ln -sf /lib/systemd/system/lightdm.service /etc/systemd/system/display-manager.service
@@ -83,10 +86,6 @@ do_distrorfs_second_stage() {
 	echo 'user-session=xfce'  >> /etc/lightdm/lightdm.conf
 
     fi
-    if [ $5 = phytium ]; then
-	echo 'defaults.pcm.!card phytiumpe220xi2'  >> /etc/asound.conf
-	echo 'defaults.ctl.!card phytiumpe220xi2'  >> /etc/asound.conf
-    fi
     # clean cached packages
     apt-get clean
 
diff --git a/board/phytium/common/ubuntu_overlay/etc/asound.conf b/board/phytium/common/ubuntu_overlay/etc/asound.conf
deleted file mode 100644
index 9e581bea..00000000
--- a/board/phytium/common/ubuntu_overlay/etc/asound.conf
+++ /dev/null
@@ -1,2 +0,0 @@
-defaults.pcm.!card phytiumpe220xi2
-defaults.ctl.!card phytiumpe220xi2
diff --git a/board/phytium/grub-d2000.cfg b/board/phytium/grub-d2000.cfg
deleted file mode 100644
index 069c9454..00000000
--- a/board/phytium/grub-d2000.cfg
+++ /dev/null
@@ -1,7 +0,0 @@
-set default="0"
-set timeout="5"
-
-menuentry "Buildroot" {
-	linux /Image root=/dev/sda2 rootwait rw
-	initrd /initrd
-}
diff --git a/board/phytium/post-image.sh b/board/phytium/post-image.sh
index 737240f3..f0214dc8 100755
--- a/board/phytium/post-image.sh
+++ b/board/phytium/post-image.sh
@@ -2,8 +2,4 @@
 
 BOARD_DIR="$(dirname $0)"
 
-if grep -Eq "^BR2_PACKAGE_XORG_ROGUE_UMLIBS=y$" ${BR2_CONFIG}; then
-	cp -f ${BOARD_DIR}/grub-d2000.cfg ${BINARIES_DIR}/efi-part/EFI/BOOT/grub.cfg
-else
-	cp -f ${BOARD_DIR}/grub.cfg ${BINARIES_DIR}/efi-part/EFI/BOOT/grub.cfg
-fi
+cp -f ${BOARD_DIR}/grub.cfg ${BINARIES_DIR}/efi-part/EFI/BOOT/grub.cfg
diff --git a/configs/openamp_free_rtos.config b/configs/openamp_free_rtos.config
new file mode 100644
index 00000000..8c44187d
--- /dev/null
+++ b/configs/openamp_free_rtos.config
@@ -0,0 +1,9 @@
+# kernel patch for e2000q\phytiumpi\d2000\ft2004, kernel version of 4.19 and 5.10
+BR2_LINUX_KERNEL_PATCH="$(LINUX_PKGDIR)/kernel-patches/openamp/0001-modify-the-dts-of-e2000q-and-phytiumpi-to-enable-hom.patch"
+
+# rpmsg-demo
+BR2_PACKAGE_RPMSG_DEMO=y
+
+# free-rtos openamp
+BR2_PACKAGE_PHYTIUM_FREE_RTOS=y
+BR2_PACKAGE_PHYTIUM_FREE_RTOS_CPU_NAME="e2000q"
diff --git a/configs/openamp_standalone.config b/configs/openamp_standalone.config
new file mode 100644
index 00000000..c69989ee
--- /dev/null
+++ b/configs/openamp_standalone.config
@@ -0,0 +1,9 @@
+# kernel patch for e2000q\phytiumpi\d2000\ft2004, kernel version of 4.19 and 5.10
+BR2_LINUX_KERNEL_PATCH="$(LINUX_PKGDIR)/kernel-patches/openamp/0001-modify-the-dts-of-e2000q-and-phytiumpi-to-enable-hom.patch"
+
+# rpmsg-demo
+BR2_PACKAGE_RPMSG_DEMO=y
+
+# standalone openamp
+BR2_PACKAGE_PHYTIUM_STANDALONE=y
+BR2_PACKAGE_PHYTIUM_STANDALONE_CPU_NAME="e2000q"
diff --git a/configs/phytium_ubuntu_defconfig b/configs/phytium_ubuntu_defconfig
index 83716844..f4baa488 100644
--- a/configs/phytium_ubuntu_defconfig
+++ b/configs/phytium_ubuntu_defconfig
@@ -13,7 +13,7 @@ BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/phytium/genimage-5.10.cfg"
 # custom skeleton
 BR2_ROOTFS_SKELETON_CUSTOM=y
 BR2_ROOTFS_SKELETON_UBUNTU=y
-BR2_ROOTFS_POST_CUSTOM_SKELETON_SCRIPT="board/phytium/common/post-custom-skeleton-ubuntu-20.04.sh"
+BR2_ROOTFS_POST_CUSTOM_SKELETON_SCRIPT="board/phytium/common/post-custom-skeleton-ubuntu.sh"
 BR2_ROOTFS_POST_BUILD_SCRIPT="board/phytium/common/post-build.sh"
 BR2_INIT_NONE=y
 BR2_ENABLE_LOCALE_PURGE=n
diff --git a/configs/ubuntu_20.04.config b/configs/ubuntu_20.04.config
new file mode 100644
index 00000000..d6844d33
--- /dev/null
+++ b/configs/ubuntu_20.04.config
@@ -0,0 +1 @@
+BR2_ROOTFS_SKELETON_UBUNTU_FOCAL=y
diff --git a/linux/kernel-patches/openamp/0001-modify-the-dts-of-e2000q-and-phytiumpi-to-enable-hom.patch b/linux/kernel-patches/openamp/0001-modify-the-dts-of-e2000q-and-phytiumpi-to-enable-hom.patch
new file mode 100644
index 00000000..aed38ea9
--- /dev/null
+++ b/linux/kernel-patches/openamp/0001-modify-the-dts-of-e2000q-and-phytiumpi-to-enable-hom.patch
@@ -0,0 +1,153 @@
+From 628d8bea52ba87c0b46eb6d4b489b6fa6fee561a Mon Sep 17 00:00:00 2001
+From: weishanshan1084 <weishanshan1084@phytium.com.cn>
+Date: Wed, 21 Feb 2024 14:11:08 +0800
+Subject: [PATCH] modify the dts of e2000q and phytiumpi to enable homo_rproc
+
+Signed-off-by: weishanshan1084 <weishanshan1084@phytium.com.cn>
+---
+ .../boot/dts/phytium/e2000q-come-board.dts    |  4 ++++
+ .../boot/dts/phytium/e2000q-demo-board.dts    |  4 ++++
+ .../boot/dts/phytium/e2000q-edu-board.dts     |  4 ++++
+ .../boot/dts/phytium/e2000q-hanwei-board.dts  |  4 ++++
+ .../boot/dts/phytium/e2000q-miniitx-board.dts |  4 ++++
+ .../boot/dts/phytium/e2000q-vpx-board.dts     |  4 ++++
+ arch/arm64/boot/dts/phytium/pe2204.dtsi       | 20 +++++++++++++++++++
+ .../boot/dts/phytium/phytiumpi_firefly.dts    |  4 ++++
+ 8 files changed, 48 insertions(+)
+
+diff --git a/arch/arm64/boot/dts/phytium/e2000q-come-board.dts b/arch/arm64/boot/dts/phytium/e2000q-come-board.dts
+index 8041464684..57fe545214 100755
+--- a/arch/arm64/boot/dts/phytium/e2000q-come-board.dts
++++ b/arch/arm64/boot/dts/phytium/e2000q-come-board.dts
+@@ -258,6 +258,10 @@ &gpio5 {
+ 	status = "okay";
+ };
+ 
++&homo_rproc {
++	status = "okay";
++};
++
+ &pwm1 {
+ 	phytium,db = <0 0 0 1000 1000 0>;
+ 	status = "okay";
+diff --git a/arch/arm64/boot/dts/phytium/e2000q-demo-board.dts b/arch/arm64/boot/dts/phytium/e2000q-demo-board.dts
+index a9d892fbbf..6ee897ccb1 100644
+--- a/arch/arm64/boot/dts/phytium/e2000q-demo-board.dts
++++ b/arch/arm64/boot/dts/phytium/e2000q-demo-board.dts
+@@ -268,6 +268,10 @@ &pmdk_dp {
+     status = "okay";
+ };
+ 
++&homo_rproc {
++	status = "okay";
++};
++
+ &rng0 {
+ 	status = "okay";
+ };
+diff --git a/arch/arm64/boot/dts/phytium/e2000q-edu-board.dts b/arch/arm64/boot/dts/phytium/e2000q-edu-board.dts
+index 5e9dd98c04..cdca4ecbff 100755
+--- a/arch/arm64/boot/dts/phytium/e2000q-edu-board.dts
++++ b/arch/arm64/boot/dts/phytium/e2000q-edu-board.dts
+@@ -345,3 +345,7 @@ &keypad {
+ 					0x03030044 /*KEY_44*/>;
+ 	status = "okay";
+ };
++
++&homo_rproc {
++	status = "okay";
++};
+diff --git a/arch/arm64/boot/dts/phytium/e2000q-hanwei-board.dts b/arch/arm64/boot/dts/phytium/e2000q-hanwei-board.dts
+index 5649d0826b..263b3b1f27 100755
+--- a/arch/arm64/boot/dts/phytium/e2000q-hanwei-board.dts
++++ b/arch/arm64/boot/dts/phytium/e2000q-hanwei-board.dts
+@@ -209,6 +209,10 @@ &gpio4 {
+ 	status = "okay";
+ };
+ 
++&homo_rproc {
++	status = "okay";
++};
++
+ &gpio5 {
+ 	status = "okay";
+ };
+diff --git a/arch/arm64/boot/dts/phytium/e2000q-miniitx-board.dts b/arch/arm64/boot/dts/phytium/e2000q-miniitx-board.dts
+index e2adaa4d51..409e6a34ec 100644
+--- a/arch/arm64/boot/dts/phytium/e2000q-miniitx-board.dts
++++ b/arch/arm64/boot/dts/phytium/e2000q-miniitx-board.dts
+@@ -323,6 +323,10 @@ &can1 {
+ 	status = "okay";
+ };
+ 
++&homo_rproc {
++	status = "okay";
++};
++
+ &rng0 {
+ 	status = "okay";
+ };
+diff --git a/arch/arm64/boot/dts/phytium/e2000q-vpx-board.dts b/arch/arm64/boot/dts/phytium/e2000q-vpx-board.dts
+index ce2bc39bc2..4413588b81 100755
+--- a/arch/arm64/boot/dts/phytium/e2000q-vpx-board.dts
++++ b/arch/arm64/boot/dts/phytium/e2000q-vpx-board.dts
+@@ -316,6 +316,10 @@ &can1 {
+ 	status = "okay";
+ };
+ 
++&homo_rproc {
++	status = "okay";
++};
++
+ &rng0 {
+ 	status = "okay";
+ };
+diff --git a/arch/arm64/boot/dts/phytium/pe2204.dtsi b/arch/arm64/boot/dts/phytium/pe2204.dtsi
+index 201a01e752..a2f192c361 100644
+--- a/arch/arm64/boot/dts/phytium/pe2204.dtsi
++++ b/arch/arm64/boot/dts/phytium/pe2204.dtsi
+@@ -10,6 +10,26 @@
+ / {
+ 	compatible = "phytium,pe2204";
+ 
++	reserved-memory {
++		#address-cells = <0x2>;
++		#size-cells = <0x2>;
++		ranges;
++		rproc: rproc@b0100000 {
++			/*下面的保留物理地址可以根据机器实际指定地址范围 */
++			no-map;
++			reg = <0x0 0xb0100000 0x0 0x19900000>;
++		};
++	};
++
++	homo_rproc: homo_rproc@0 {
++		compatible = "homo,rproc";
++		remote-processor = <3>;
++		inter-processor-interrupt = <9>;
++		memory-region = <&rproc>;
++		firmware-name = "openamp_core0.elf";
++		status = "disabled";
++	};
++
+ 	aliases {
+ 		ethernet0 = &macb0;
+ 		ethernet1 = &macb1;
+diff --git a/arch/arm64/boot/dts/phytium/phytiumpi_firefly.dts b/arch/arm64/boot/dts/phytium/phytiumpi_firefly.dts
+index 56f4e689ea..651a28156f 100644
+--- a/arch/arm64/boot/dts/phytium/phytiumpi_firefly.dts
++++ b/arch/arm64/boot/dts/phytium/phytiumpi_firefly.dts
+@@ -311,6 +311,10 @@ &pmdk_dp {
+ 	status = "okay";
+ };
+ 
++&homo_rproc {
++	status = "okay";
++};
++
+ &rng0 {
+ 	status = "okay";
+ };
+-- 
+2.25.1
+
diff --git a/package/Config.in b/package/Config.in
index 151f0f5a..de258c3d 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -441,6 +441,9 @@ menu "Firmware"
 	source "package/vpu-lib/Config.in"
 	source "package/phytium-tools/Config.in"
 	source "package/phyuboot/Config.in"
+	source "package/phytium-standalone/Config.in"
+	source "package/phytium-free-rtos/Config.in"
+	source "package/rpmsg-demo/Config.in"
 endmenu
 	source "package/18xx-ti-utils/Config.in"
 	source "package/a10disp/Config.in"
diff --git a/package/aarch64-none-elf-toolchain/aarch64-none-elf-toolchain.hash b/package/aarch64-none-elf-toolchain/aarch64-none-elf-toolchain.hash
new file mode 100644
index 00000000..3ae7bb3e
--- /dev/null
+++ b/package/aarch64-none-elf-toolchain/aarch64-none-elf-toolchain.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  6f74b1ee370caeb716688d2e467e5b44727fdc0ed56023fe5c72c0620019ecef  gcc-arm-10.3-2021.07-x86_64-aarch64-none-elf.tar.xz
diff --git a/package/aarch64-none-elf-toolchain/aarch64-none-elf-toolchain.mk b/package/aarch64-none-elf-toolchain/aarch64-none-elf-toolchain.mk
new file mode 100644
index 00000000..229e53ba
--- /dev/null
+++ b/package/aarch64-none-elf-toolchain/aarch64-none-elf-toolchain.mk
@@ -0,0 +1,26 @@
+################################################################################
+#
+# aarch64-none-elf-toolchain
+#
+################################################################################
+
+AARCH64_NONE_ELF_TOOLCHAIN_VERSION = 10.3-2021.07
+AARCH64_NONE_ELF_TOOLCHAIN_SITE = https://developer.arm.com/-/media/Files/downloads/gnu-a/$(AARCH64_NONE_ELF_TOOLCHAIN_VERSION)/binrel
+AARCH64_NONE_ELF_TOOLCHAIN_SOURCE = gcc-arm-$(AARCH64_NONE_ELF_TOOLCHAIN_VERSION)-x86_64-aarch64-none-elf.tar.xz
+AARCH64_NONE_ELF_TOOLCHAIN_LICENSE = GPL-3.0+
+
+HOST_AARCH64_NONE_ELF_TOOLCHAIN_INSTALL_DIR = $(HOST_DIR)/opt/aarch64-none-elf
+
+define HOST_AARCH64_NONE_ELF_TOOLCHAIN_INSTALL_CMDS
+	rm -rf $(HOST_AARCH64_NONE_ELF_TOOLCHAIN_INSTALL_DIR)
+	mkdir -p $(HOST_AARCH64_NONE_ELF_TOOLCHAIN_INSTALL_DIR)
+	cp -rf $(@D)/* $(HOST_AARCH64_NONE_ELF_TOOLCHAIN_INSTALL_DIR)/
+
+	mkdir -p $(HOST_DIR)/bin
+	cd $(HOST_DIR)/bin && \
+	for i in ../opt/aarch64-none-elf/bin/*; do \
+		ln -sf $$i; \
+	done
+endef
+
+$(eval $(host-generic-package))
diff --git a/package/jailhouse/jailhouse.mk b/package/jailhouse/jailhouse.mk
index 29dc7026..82a4f564 100644
--- a/package/jailhouse/jailhouse.mk
+++ b/package/jailhouse/jailhouse.mk
@@ -55,10 +55,14 @@ define JAILHOUSE_INSTALL_TARGET_CMDS
 
 	$(if $(BR2_PACKAGE_JAILHOUSE_HELPER_SCRIPTS), \
 		cd $(@D)/src/jailhouse && $(PKG_PYTHON_SETUPTOOLS_ENV) $(HOST_DIR)/bin/python setup.py install --no-compile $(PKG_PYTHON_SETUPTOOLS_INSTALL_TARGET_OPTS))
-	$(and $(BR2_PACKAGE_JAILHOUSE_HELPER_SCRIPTS),$(BR2_ROOTFS_SKELETON_UBUNTU), \
+	$(and $(BR2_PACKAGE_JAILHOUSE_HELPER_SCRIPTS),$(BR2_ROOTFS_SKELETON_UBUNTU_FOCAL), \
 		mkdir -p $(TARGET_DIR)/usr/local/lib/python3.8/dist-packages && \
 		mv $(TARGET_DIR)/usr/lib/python3.10/site-packages/pyjailhouse $(TARGET_DIR)/usr/local/lib/python3.8/dist-packages && \
 		mv $(TARGET_DIR)/usr/lib/python3.10/site-packages/pyjailhouse-0.12-py3.10.egg-info $(TARGET_DIR)/usr/local/lib/python3.8/dist-packages/pyjailhouse-0.12-py3.8.egg-info)
+	$(and $(BR2_PACKAGE_JAILHOUSE_HELPER_SCRIPTS),$(BR2_ROOTFS_SKELETON_UBUNTU_JAMMY), \
+		mkdir -p $(TARGET_DIR)/usr/local/lib/python3.10/dist-packages && \
+		mv $(TARGET_DIR)/usr/lib/python3.10/site-packages/pyjailhouse $(TARGET_DIR)/usr/local/lib/python3.10/dist-packages && \
+		mv $(TARGET_DIR)/usr/lib/python3.10/site-packages/pyjailhouse-0.12-py3.10.egg-info $(TARGET_DIR)/usr/local/lib/python3.10/dist-packages/pyjailhouse-0.12-py3.10.egg-info)
 	$(and $(BR2_PACKAGE_JAILHOUSE_HELPER_SCRIPTS),$(BR2_ROOTFS_SKELETON_DEBIAN), \
 		mkdir -p $(TARGET_DIR)/usr/local/lib/python3.9/dist-packages && \
 		mv $(TARGET_DIR)/usr/lib/python3.10/site-packages/pyjailhouse $(TARGET_DIR)/usr/local/lib/python3.9/dist-packages && \
diff --git a/package/phytium-free-rtos/Config.in b/package/phytium-free-rtos/Config.in
new file mode 100644
index 00000000..69c9146f
--- /dev/null
+++ b/package/phytium-free-rtos/Config.in
@@ -0,0 +1,16 @@
+config BR2_PACKAGE_PHYTIUM_FREE_RTOS
+	bool "phytium-free-rtos"
+	help
+	  Phytium-FreeRTOS-SDK for OpenAMP
+
+          https://gitee.com/phytium_embedded/phytium-free-rtos-sdk
+
+if BR2_PACKAGE_PHYTIUM_FREE_RTOS
+
+config BR2_PACKAGE_PHYTIUM_FREE_RTOS_CPU_NAME
+        string "CPU name"
+        help
+          Supported CPU:
+	  "e2000q", "phytiumpi", "d2000", "ft2004".
+
+endif
diff --git a/package/phytium-free-rtos/phytium-free-rtos.mk b/package/phytium-free-rtos/phytium-free-rtos.mk
new file mode 100644
index 00000000..25705cc3
--- /dev/null
+++ b/package/phytium-free-rtos/phytium-free-rtos.mk
@@ -0,0 +1,31 @@
+################################################################################
+#
+# phytium-free-rtos
+#
+################################################################################
+
+PHYTIUM_FREE_RTOS_VERSION = v0.7.1
+PHYTIUM_FREE_RTOS_SITE = https://gitee.com/phytium_embedded/phytium-free-rtos-sdk.git
+PHYTIUM_FREE_RTOS_SITE_METHOD = git
+PHYTIUM_FREE_RTOS_DEPENDENCIES = host-phytium-iot-environment host-python3 linux
+PHYTIUM_FREE_RTOS_CPU = $(call qstrip,$(BR2_PACKAGE_PHYTIUM_FREE_RTOS_CPU_NAME))
+
+define PHYTIUM_FREE_RTOS_CONFIGURE_CMDS
+	cd $(@D) && \
+	$(TARGET_MAKE_ENV) ./install.py
+endef
+
+define PHYTIUM_FREE_RTOS_BUILD_CMDS
+	if [[ $(LINUX_VERSION_PROBED) = 5.10* ]]; then \
+		PHYTIUM_FREE_RTOS_ARCH=aarch64; \
+	else \
+		PHYTIUM_FREE_RTOS_ARCH=aarch32; \
+	fi && \
+	. $(HOST_DIR)/etc/profile.d/phytium_dev.sh && \
+	cd $(@D)/example/system/amp/openamp_for_linux && \
+	$(TARGET_MAKE_ENV) $(MAKE1) config_$(PHYTIUM_FREE_RTOS_CPU)_$${PHYTIUM_FREE_RTOS_ARCH} && \
+	mkdir -p $(TARGET_DIR)/lib/firmware && \
+	$(TARGET_MAKE_ENV) $(MAKE1) image USR_BOOT_DIR=$(TARGET_DIR)/lib/firmware
+endef
+
+$(eval $(generic-package))
diff --git a/package/phytium-iot-environment/phytium-iot-environment.mk b/package/phytium-iot-environment/phytium-iot-environment.mk
new file mode 100644
index 00000000..9450e365
--- /dev/null
+++ b/package/phytium-iot-environment/phytium-iot-environment.mk
@@ -0,0 +1,19 @@
+################################################################################
+#
+# phytium-iot-environment
+#
+################################################################################
+
+# source included in the package
+HOST_PHYTIUM_IOT_ENVIRONMENT_DEPENDENCIES = host-arm-gnu-a-toolchain host-aarch64-none-elf-toolchain
+
+define HOST_PHYTIUM_IOT_ENVIRONMENT_EXTRACT_CMDS
+	cp $(HOST_PHYTIUM_IOT_ENVIRONMENT_PKGDIR)/phytium_dev.sh $(@D)
+endef
+
+define HOST_PHYTIUM_IOT_ENVIRONMENT_INSTALL_CMDS
+	mkdir -p $(HOST_DIR)/etc/profile.d
+	$(INSTALL) -D -m 0755 $(@D)/phytium_dev.sh $(HOST_DIR)/etc/profile.d
+endef
+
+$(eval $(host-generic-package))
diff --git a/package/phytium-iot-environment/phytium_dev.sh b/package/phytium-iot-environment/phytium_dev.sh
new file mode 100755
index 00000000..f51e936d
--- /dev/null
+++ b/package/phytium-iot-environment/phytium_dev.sh
@@ -0,0 +1,7 @@
+### PHYTIUM DEV SETTING START
+export AARCH32_CROSS_PATH=${HOST_DIR}/opt/gcc-arm-none-eabi
+export PATH=$PATH:${AARCH32_CROSS_PATH}/bin
+export AARCH64_CROSS_PATH=${HOST_DIR}/opt/aarch64-none-elf
+export PATH=$PATH:${AARCH64_CROSS_PATH}/bin
+export PHYTIUM_DEV_PATH=${HOST_DIR}
+### PHYTIUM DEV SETTING END
diff --git a/package/phytium-standalone/Config.in b/package/phytium-standalone/Config.in
new file mode 100644
index 00000000..0d392d4e
--- /dev/null
+++ b/package/phytium-standalone/Config.in
@@ -0,0 +1,16 @@
+config BR2_PACKAGE_PHYTIUM_STANDALONE
+	bool "phytium-standalone"
+	help
+	  Phytium-Standalone-SDK for OpenAMP
+
+          https://gitee.com/phytium_embedded/phytium-standalone-sdk
+
+if BR2_PACKAGE_PHYTIUM_STANDALONE
+
+config BR2_PACKAGE_PHYTIUM_STANDALONE_CPU_NAME
+        string "CPU name"
+        help
+          Supported CPU:
+	  "e2000q", "phytiumpi", "d2000", "ft2004".
+
+endif
diff --git a/package/phytium-standalone/phytium-standalone.mk b/package/phytium-standalone/phytium-standalone.mk
new file mode 100644
index 00000000..c3afc524
--- /dev/null
+++ b/package/phytium-standalone/phytium-standalone.mk
@@ -0,0 +1,26 @@
+################################################################################
+#
+# phytium-standalone
+#
+################################################################################
+
+PHYTIUM_STANDALONE_VERSION = v1.2.3
+PHYTIUM_STANDALONE_SITE = https://gitee.com/phytium_embedded/phytium-standalone-sdk.git
+PHYTIUM_STANDALONE_SITE_METHOD = git
+PHYTIUM_STANDALONE_DEPENDENCIES = host-phytium-iot-environment host-python3 linux
+PHYTIUM_STANDALONE_CPU = $(call qstrip,$(BR2_PACKAGE_PHYTIUM_STANDALONE_CPU_NAME))
+
+define PHYTIUM_STANDALONE_BUILD_CMDS
+	if [[ $(LINUX_VERSION_PROBED) = 5.10* ]]; then \
+		PHYTIUM_STANDALONE_ARCH=aarch64; \
+	else \
+		PHYTIUM_STANDALONE_ARCH=aarch32; \
+	fi && \
+	. $(HOST_DIR)/etc/profile.d/phytium_dev.sh && \
+	cd $(@D)/example/system/amp/openamp_for_linux && \
+	$(TARGET_MAKE_ENV) $(MAKE1) config_$(PHYTIUM_STANDALONE_CPU)_$${PHYTIUM_STANDALONE_ARCH} && \
+	mkdir -p $(TARGET_DIR)/lib/firmware && \
+	$(TARGET_MAKE_ENV) $(MAKE1) image USR_BOOT_DIR=$(TARGET_DIR)/lib/firmware
+endef
+
+$(eval $(generic-package))
diff --git a/package/phytium-tools/phytium-tools.mk b/package/phytium-tools/phytium-tools.mk
index 6416feb1..f82d40da 100644
--- a/package/phytium-tools/phytium-tools.mk
+++ b/package/phytium-tools/phytium-tools.mk
@@ -19,6 +19,7 @@ define  PHYTIUM_TOOLS_INSTALL_TARGET_CMDS
 	$(INSTALL) -m 755 -D $(@D)/resize.sh  $(TARGET_DIR)/usr/bin/
 	$(INSTALL) -m 644 -D $(@D)/systemd-hciattach.service $(TARGET_DIR)/lib/systemd/system/
 	$(INSTALL) -m 444 -D $(@D)/rtw8821c_fw.bin $(TARGET_DIR)/lib/firmware/rtw88/
+	$(INSTALL) -m 755 -D $(@D)/rc.local $(TARGET_DIR)/etc/
 endef
 
 $(eval $(generic-package))
diff --git a/package/phytium-tools/src/rc.local b/package/phytium-tools/src/rc.local
new file mode 100644
index 00000000..82fb394a
--- /dev/null
+++ b/package/phytium-tools/src/rc.local
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+lock_file="/var/tmp/resize.lock"
+
+if [ -f "$lock_file" ]; then
+	echo "Partition expansion script has already been executed."
+	exit 0
+fi
+
+# if the scripts has not been executed yet, create a lock file
+touch "$lock_file"
+
+# execute the partition expansion script
+nohup /usr/bin/resize.sh &
+
+exit 0
diff --git a/package/rpmsg-demo/Config.in b/package/rpmsg-demo/Config.in
new file mode 100644
index 00000000..ef9a5553
--- /dev/null
+++ b/package/rpmsg-demo/Config.in
@@ -0,0 +1,6 @@
+config BR2_PACKAGE_RPMSG_DEMO
+	bool "rpmsg-demo"
+	help
+	  Phytium openamp rpmsg-demo.
+
+	  https://gitee.com/phytium_embedded/phytium-embedded-docs/blob/master/open-amp/rpmsg-demo.c
diff --git a/package/rpmsg-demo/rpmsg-demo.hash b/package/rpmsg-demo/rpmsg-demo.hash
new file mode 100644
index 00000000..265bb772
--- /dev/null
+++ b/package/rpmsg-demo/rpmsg-demo.hash
@@ -0,0 +1,2 @@
+# Locally calculated
+sha256  c5fb688bbe06eabebf2a1f3cb37d352e5bf3834e2f5116ecce51cda27dff4ac3  rpmsg-demo.c
diff --git a/package/rpmsg-demo/rpmsg-demo.mk b/package/rpmsg-demo/rpmsg-demo.mk
new file mode 100644
index 00000000..68e7bcb6
--- /dev/null
+++ b/package/rpmsg-demo/rpmsg-demo.mk
@@ -0,0 +1,22 @@
+################################################################################
+#
+# rpmsg-demo
+#
+################################################################################
+
+RPMSG_DEMO_SITE = https://gitee.com/phytium_embedded/phytium-embedded-docs/raw/master/open-amp
+RPMSG_DEMO_SOURCE = rpmsg-demo.c
+
+define RPMSG_DEMO_EXTRACT_CMDS
+	cp $(RPMSG_DEMO_DL_DIR)/$(RPMSG_DEMO_SOURCE) $(@D)
+endef
+
+define RPMSG_DEMO_BUILD_CMDS
+	$(TARGET_CC) -o $(@D)/rpmsg-demo $(@D)/$(RPMSG_DEMO_SOURCE)
+endef
+
+define RPMSG_DEMO_INSTALL_TARGET_CMDS
+	$(INSTALL) -m 0755 -D $(@D)/rpmsg-demo $(TARGET_DIR)/usr/bin/
+endef
+
+$(eval $(generic-package))
diff --git a/system/Config.in b/system/Config.in
index ae75a2da..b2ab09a9 100644
--- a/system/Config.in
+++ b/system/Config.in
@@ -35,6 +35,26 @@ config BR2_ROOTFS_SKELETON_UBUNTU
         help
           Custom target skeleton is ubuntu.
 
+if BR2_ROOTFS_SKELETON_UBUNTU
+
+choice
+	prompt "Choose Ubuntu version"
+	default BR2_ROOTFS_SKELETON_UBUNTU_JAMMY
+
+config BR2_ROOTFS_SKELETON_UBUNTU_JAMMY
+	bool "Ubuntu 22.04"
+	help
+	  Ubuntu 22.04 LTS (Jammy Jellyfish)
+
+config BR2_ROOTFS_SKELETON_UBUNTU_FOCAL
+	bool "Ubuntu 20.04"
+	help
+	  Ubuntu 20.04 LTS (Focal Fossa)
+
+endchoice
+
+endif
+
 config BR2_ROOTFS_SKELETON_DEBIAN
         bool "custom target skeleton is debian"
         help