diff --git a/.github/workflows/rv1109_images.yml b/.github/workflows/rv1109_images.yml
index 94111391..a220590d 100644
--- a/.github/workflows/rv1109_images.yml
+++ b/.github/workflows/rv1109_images.yml
@@ -69,7 +69,7 @@ jobs:
           echo "ARCHIVE_FW=$ARCHIVE_FW" >> $GITHUB_ENV
           echo "ARCHIVE_FW_NAND=$ARCHIVE_FW_NAND" >> $GITHUB_ENV
           cd $GITHUB_WORKSPACE
-          make PLATFORM=rockchip BOARD=unknown_unknown_${BOARD} all
+          make PLATFORM=rockchip BOARD=unknown_unknown_${BOARD}_openipc all
           # [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) -gt 3145728 ]] && echo "TG_NOTIFY=Warning, kernel size exceeded : $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) ... ${BOARD}" >> $GITHUB_ENV && exit 1
           # [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) -gt 10485760 ]] && echo "TG_NOTIFY=Warning, rootfs size exceeded - $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) vs 10485760... ${BOARD}" >> $GITHUB_ENV && exit 1
           cd ${GITHUB_WORKSPACE}/output/images
diff --git a/.github/workflows/rv1126_images.yml b/.github/workflows/rv1126_images.yml
index df229db3..3ffd571c 100644
--- a/.github/workflows/rv1126_images.yml
+++ b/.github/workflows/rv1126_images.yml
@@ -69,7 +69,7 @@ jobs:
           echo "ARCHIVE_FW=$ARCHIVE_FW" >> $GITHUB_ENV
           echo "ARCHIVE_FW_NAND=$ARCHIVE_FW_NAND" >> $GITHUB_ENV
           cd $GITHUB_WORKSPACE
-          make PLATFORM=rockchip BOARD=unknown_unknown_${BOARD} all
+          make PLATFORM=rockchip BOARD=unknown_unknown_${BOARD}_openipc all
           # [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) -gt 3145728 ]] && echo "TG_NOTIFY=Warning, kernel size exceeded : $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) ... ${BOARD}" >> $GITHUB_ENV && exit 1
           # [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) -gt 10485760 ]] && echo "TG_NOTIFY=Warning, rootfs size exceeded - $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) vs 10485760... ${BOARD}" >> $GITHUB_ENV && exit 1
           cd ${GITHUB_WORKSPACE}/output/images
diff --git a/.github/workflows/t21_images.yml b/.github/workflows/t21_images.yml
new file mode 100644
index 00000000..8503b942
--- /dev/null
+++ b/.github/workflows/t21_images.yml
@@ -0,0 +1,139 @@
+name: "T21"
+
+on:
+  push:
+    branches:
+      - production
+    tags:
+      - "v*"
+  schedule:
+      - cron: "00 02 * * *"
+  workflow_dispatch:
+
+jobs:
+  build_core:
+    name: OpenIPC firmware for T21
+    runs-on: ubuntu-18.04
+
+    steps:
+
+      - name: Checkout
+        id: checkout
+        uses: actions/checkout@v2
+
+      - name: Install build dependencies
+        id: install
+        run: |
+          make install-deps
+          mkdir -p tmp
+
+      - name: Free disk space
+        id: freshing
+        run: |
+          sudo swapoff -a
+          sudo rm -f /swapfile
+          sudo apt clean
+          docker rmi $(docker image ls -aq)
+          df -h
+
+      - name: Prepare buildroot
+        id: prepare
+        run: |
+          HEAD_TAG=$(git tag --points-at HEAD)
+          GIT_HASH=$(git rev-parse --short $GITHUB_SHA)
+          BRANCH_NAME=$(echo $GITHUB_REF | cut -d'/' -f 3)
+          if [ -z "$HEAD_TAG" ]; then
+            TAG_NAME="latest"
+            RELEASE_NAME="Development Build"
+            PRERELEASE=true
+          else
+            TAG_NAME=${{ github.ref }}
+            RELEASE_NAME="Release ${{ github.ref }}"
+            PRERELEASE=false
+          fi
+          echo "GIT_HASH=$GIT_HASH" >> $GITHUB_ENV
+          echo "TAG_NAME=$TAG_NAME" >> $GITHUB_ENV
+          echo "RELEASE_NAME=$RELEASE_NAME" >> $GITHUB_ENV
+          echo "PRERELEASE=$PRERELEASE" >> $GITHUB_ENV
+          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
+          cd $GITHUB_WORKSPACE
+          make prepare
+
+      - name: Build T21 firmware
+        id: build-t21-firmware
+        continue-on-error: true
+        run: |
+          ARCHIVE_FW="${GITHUB_WORKSPACE}/output/images/openipc.t21-br.tgz"
+          echo "ARCHIVE_FW=$ARCHIVE_FW" >> $GITHUB_ENV
+          cd $GITHUB_WORKSPACE
+          make PLATFORM=ingenic BOARD=unknown_unknown_t21_openipc all
+          [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) -gt 2097152 ]] && echo "TG_NOTIFY=Warning, kernel size exceeded : $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/uImage) vs 2097152... T21" >> $GITHUB_ENV && exit 1
+          [[ $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) -gt 5242880 ]] && echo "TG_NOTIFY=Warning, rootfs size exceeded - $(stat --printf="%s" ${GITHUB_WORKSPACE}/output/images/rootfs.squashfs) vs 5242880... T21" >> $GITHUB_ENV && exit 1
+          cd ${GITHUB_WORKSPACE}/output/images
+          mv uImage uImage.t21
+          mv rootfs.squashfs rootfs.squashfs.t21
+          md5sum rootfs.squashfs.t21 > rootfs.squashfs.t21.md5sum
+          md5sum uImage.t21 > uImage.t21.md5sum
+          tar -cvzf $ARCHIVE_FW *t21*
+
+      - name: Build T21 SDK
+        id: build-t21-sdk
+        continue-on-error: true
+        run: |
+          ARCHIVE_SDK="${GITHUB_WORKSPACE}/output/images/mipsel-openipc-linux-musl_sdk-buildroot.tar.gz"
+          echo "ARCHIVE_SDK=$ARCHIVE_SDK" >> $GITHUB_ENV
+          cd $GITHUB_WORKSPACE/output
+          make sdk
+
+      - name: Send warning message to telegram channel
+        env:
+          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
+          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
+        if: steps.build-t21-firmware.outcome != 'success' || steps.build-t21-sdk.outcome != 'success'
+        run: |
+          TG_OPTIONS="-s --connect-timeout 30 --max-time 30"
+          TG_NOTIFY="${TG_NOTIFY:=Warning, Buildroot compiling error... T21}"
+          TG_HEADER=$(echo -e "\r\n$TG_NOTIFY \r\n\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9A\xA0 GitHub Actions")
+          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendMessage \
+            -F chat_id=$TG_CHANNEL -F text="$TG_HEADER"
+
+      - name: Create release
+        uses: actions/create-release@v1
+        continue-on-error: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ env.TAG_NAME }}
+          release_name: ${{ env.RELEASE_NAME }}
+          draft: false
+          prerelease: ${{ env.PRERELEASE }}
+
+      - name: Upload FW to release
+        uses: svenstaro/upload-release-action@v2
+        continue-on-error: true
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ env.ARCHIVE_FW }}
+          asset_name: "openipc.t21-br.tgz"
+          tag: ${{ env.TAG_NAME }}
+          overwrite: true
+
+      - name: Upload SDK to release
+        uses: svenstaro/upload-release-action@v2
+        continue-on-error: true
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ env.ARCHIVE_SDK }}
+          asset_name: "mipsel-openipc-t21-linux-musl_sdk-buildroot.tar.gz"
+          tag: ${{ env.TAG_NAME }}
+          overwrite: true
+
+      - name: Send binary file to telegram channel
+        env:
+          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
+          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
+        run: |
+          TG_OPTIONS="-s --connect-timeout 30 --max-time 30"
+          TG_HEADER=$(echo -e "\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9C\x85 GitHub Actions")
+          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendDocument \
+            -F chat_id=$TG_CHANNEL -F document="@$ARCHIVE_FW" -F caption="$TG_HEADER"
diff --git a/br-ext-chip-ingenic/configs/unknown_unknown_t21_openipc_defconfig b/br-ext-chip-ingenic/configs/unknown_unknown_t21_openipc_defconfig
new file mode 100644
index 00000000..01cb172c
--- /dev/null
+++ b/br-ext-chip-ingenic/configs/unknown_unknown_t21_openipc_defconfig
@@ -0,0 +1,102 @@
+# Architecture
+BR2_mipsel=y
+BR2_mips_xburst=y
+# BR2_MIPS_SOFT_FLOAT is not set
+BR2_MIPS_FP32_MODE_32=y
+# BR2_MIPS_FP32_MODE_XX is not set
+BR2_MIPS_NAN_LEGACY=y
+BR2_MIPS_OABI32=y
+BR2_KERNEL_HEADERS_VERSION=y
+BR2_DEFAULT_KERNEL_VERSION="3.10.14"
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_3_10=y
+
+# Toolchain
+BR2_PER_PACKAGE_DIRECTORIES=y
+BR2_GCC_VERSION_7_X=y
+# BR2_TOOLCHAIN_USES_UCLIBC is not set
+# BR2_TOOLCHAIN_BUILDROOT_UCLIBC is not set
+# BR2_TOOLCHAIN_BUILDROOT_LIBC="uclibc"
+BR2_EXTRA_GCC_CONFIG_OPTIONS="--with-float=hard"
+BR2_TOOLCHAIN_USES_MUSL=y
+BR2_TOOLCHAIN_BUILDROOT_MUSL=y
+BR2_TOOLCHAIN_BUILDROOT_LIBC="musl"
+BR2_TOOLCHAIN_BUILDROOT_CXX=y
+BR2_TOOLCHAIN_BUILDROOT_LOCALE=y
+BR2_TOOLCHAIN_BUILDROOT_USE_SSP=y
+
+# Kernel
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="3.10.14"
+BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="$(BR2_EXTERNAL_INGENIC_PATH)/board/t31/kernel/t21.generic.config"
+BR2_LINUX_KERNEL_UIMAGE=y
+BR2_LINUX_KERNEL_LZMA=y
+BR2_LINUX_KERNEL_EXT_INGENIC_PATCHER=y
+BR2_LINUX_KERNEL_EXT_INGENIC_PATCHER_LIST="$(BR2_EXTERNAL_INGENIC_PATH)/board/t31/kernel/patches/ $(BR2_EXTERNAL_INGENIC_PATH)/board/t31/kernel/overlay"
+
+# Filesystem
+# BR2_TARGET_TZ_INFO is not set
+BR2_TARGET_ROOTFS_CPIO=y
+BR2_TARGET_ROOTFS_SQUASHFS=y
+BR2_TARGET_ROOTFS_SQUASHFS4_XZ=y
+BR2_ROOTFS_OVERLAY="$(TOPDIR)/../general/overlay"
+BR2_ROOTFS_POST_BUILD_SCRIPT="$(TOPDIR)/../scripts/executing_commands_for_$(BR2_TOOLCHAIN_BUILDROOT_LIBC).sh"
+
+# OpenIPC configuration
+BR2_TOOLCHAIN_BUILDROOT_VENDOR="openipc"
+BR2_TARGET_GENERIC_ISSUE="Welcome to OpenIPC v2.2"
+BR2_TARGET_GENERIC_HOSTNAME="openipc-t21"
+BR2_GLOBAL_PATCH_DIR="$(TOPDIR)/../general/package/all-patches"
+
+# OpenIPC packages
+BR2_PACKAGE_BUSYBOX_CONFIG="$(TOPDIR)/../general/package/busybox/busybox.config"
+BR2_PACKAGE_DROPBEAR_OPENIPC=y
+# BR2_PACKAGE_FDK_AAC_OPENIPC is not set
+BR2_PACKAGE_FWPRINTENV_OPENIPC=y
+BR2_PACKAGE_INGENIC_OSDRV_T31=y
+BR2_PACKAGE_HASERL=y
+BR2_PACKAGE_HISI_GPIO=y
+BR2_PACKAGE_IPCTOOL=y
+BR2_PACKAGE_JSON_C=y
+BR2_PACKAGE_LAME_OPENIPC=y
+BR2_PACKAGE_LIBCURL_OPENIPC=y
+BR2_PACKAGE_LIBCURL_OPENIPC_CURL=y
+# BR2_PACKAGE_LIBCURL_OPENIPC_VERBOSE is not set
+# BR2_PACKAGE_LIBCURL_OPENIPC_PROXY_SUPPORT is not set
+# BR2_PACKAGE_LIBCURL_OPENIPC_COOKIES_SUPPORT is not set
+# BR2_PACKAGE_LIBCURL_OPENIPC_EXTRA_PROTOCOLS_FEATURES is not set
+BR2_PACKAGE_LIBCURL_OPENIPC_MBEDTLS=y
+BR2_PACKAGE_LIBEVENT_OPENIPC=y
+BR2_PACKAGE_LIBEVENT_OPENIPC_REMOVE_PYSCRIPT=y
+BR2_PACKAGE_LIBOGG_OPENIPC=y
+BR2_PACKAGE_LIBWEBSOCKETS_OPENIPC=y
+BR2_PACKAGE_LIBYAML=y
+BR2_PACKAGE_MAJESTIC_FONTS=y
+BR2_PACKAGE_MAJESTIC_T31=y
+BR2_PACKAGE_MBEDTLS_OPENIPC=y
+# BR2_PACKAGE_MBEDTLS_OPENIPC_PROGRAMS is not set
+# BR2_PACKAGE_MBEDTLS_OPENIPC_COMPRESSION is not set
+BR2_PACKAGE_MICROBE_WEB=y
+# BR2_PACKAGE_MINI_SNMPD is not set
+BR2_PACKAGE_MOTORS=y
+BR2_PACKAGE_OPUS_OPENIPC=y
+BR2_PACKAGE_OPUS_OPENIPC_FIXED_POINT=y
+# BR2_PACKAGE_SSHPASS is not set
+BR2_PACKAGE_UACME_OPENIPC=y
+BR2_PACKAGE_VTUND_OPENIPC=y
+BR2_PACKAGE_YAML_CLI=y
+
+# WiFi
+BR2_PACKAGE_WIRELESS_TOOLS=y
+BR2_PACKAGE_WPA_SUPPLICANT=y
+BR2_PACKAGE_WPA_SUPPLICANT_CLI=y
+BR2_PACKAGE_WPA_SUPPLICANT_NL80211=y
+BR2_PACKAGE_WPA_SUPPLICANT_PASSPHRASE=y
+BR2_PACKAGE_LINUX_FIRMWARE_OPENIPC=y
+BR2_PACKAGE_LINUX_FIRMWARE_OPENIPC_MT7601U=y
+# BR2_PACKAGE_RTL8188EU is not set
+
+# WIREGUARD
+# BR2_PACKAGE_WIREGUARD_LINUX_COMPAT=y
+# BR2_PACKAGE_WIREGUARD_TOOLS=y