diff --git a/build/linux/aarch64/arm.linux.cross.cmake b/build/linux/aarch64/arm.linux.cross.cmake
index a6bd5327..b7fabf60 100644
--- a/build/linux/aarch64/arm.linux.cross.cmake
+++ b/build/linux/aarch64/arm.linux.cross.cmake
@@ -1,9 +1,13 @@
 
 cmake_minimum_required( VERSION 2.6.3 )
 
+if(NOT TOOLCHAIN)
+    set(TOOLCHAIN "aarch64-linux-gnu-")
+endif()
+
 SET(CMAKE_SYSTEM_NAME Linux)
-SET(CMAKE_C_COMPILER "aarch64-linux-gnu-gcc")
-SET(CMAKE_CXX_COMPILER "aarch64-linux-gnu-g++")
+SET(CMAKE_C_COMPILER "${TOOLCHAIN}gcc")
+SET(CMAKE_CXX_COMPILER "${TOOLCHAIN}g++")
 #SET(CMAKE_SYSTEM_PROCESSOR "armv7-a")
 SET(CMAKE_SYSTEM_PROCESSOR "armv8-a")
 
diff --git a/build/linux/aarch64/make-Makefiles.bash b/build/linux/aarch64/make-Makefiles.bash
index a648bc4a..c9401ef6 100755
--- a/build/linux/aarch64/make-Makefiles.bash
+++ b/build/linux/aarch64/make-Makefiles.bash
@@ -24,6 +24,13 @@ fi
 
 # generate Makefile
 cmake -DCMAKE_BUILD_TYPE=Release \
+      -DTOOLCHAIN=${TOOLCHAIN} \
       -DCMAKE_TOOLCHAIN_FILE=./arm.linux.cross.cmake \
       -G "Unix Makefiles" \
       ${MPP_TOP}
+
+if [ "${CMAKE_PARALLEL_ENABLE}" = "0" ]; then
+    cmake --build .
+else
+    cmake --build . -j
+fi
diff --git a/build/linux/arm/arm.linux.cross.cmake b/build/linux/arm/arm.linux.cross.cmake
index cc70f621..0884596f 100644
--- a/build/linux/arm/arm.linux.cross.cmake
+++ b/build/linux/arm/arm.linux.cross.cmake
@@ -1,9 +1,13 @@
 
 cmake_minimum_required( VERSION 2.6.3 )
 
+if(NOT TOOLCHAIN)
+    set(TOOLCHAIN "arm-linux-gnueabi-")
+endif()
+
 SET(CMAKE_SYSTEM_NAME Linux)
-SET(CMAKE_C_COMPILER "arm-linux-gnueabi-gcc")
-SET(CMAKE_CXX_COMPILER "arm-linux-gnueabi-g++")
+SET(CMAKE_C_COMPILER "${TOOLCHAIN}gcc")
+SET(CMAKE_CXX_COMPILER "${TOOLCHAIN}g++")
 SET(CMAKE_SYSTEM_PROCESSOR "armv7-a")
 #SET(CMAKE_SYSTEM_PROCESSOR "armv7-a_hardfp")
 
diff --git a/build/linux/arm/make-Makefiles.bash b/build/linux/arm/make-Makefiles.bash
index b5777033..26100862 100755
--- a/build/linux/arm/make-Makefiles.bash
+++ b/build/linux/arm/make-Makefiles.bash
@@ -24,7 +24,14 @@ fi
 
 # generate Makefile
 cmake -DCMAKE_BUILD_TYPE=Release \
+      -DTOOLCHAIN=${TOOLCHAIN} \
       -DCMAKE_TOOLCHAIN_FILE=./arm.linux.cross.cmake \
       -DHAVE_DRM=ON \
       -G "Unix Makefiles" \
       ${MPP_TOP}
+
+if [ "${CMAKE_PARALLEL_ENABLE}" = "0" ]; then
+    cmake --build .
+else
+    cmake --build . -j
+fi
diff --git a/build/linux/opt_proc.sh b/build/linux/opt_proc.sh
index 29d7bd4c..4e22bf35 100755
--- a/build/linux/opt_proc.sh
+++ b/build/linux/opt_proc.sh
@@ -23,10 +23,16 @@ while [ $# -gt 0 ]; do
     case $1 in
         --help | -h)
             echo "Execute make-Makefiles.sh in *arm/* or *aarch64/* with some args."
+            echo "  use --toolchain to set toolchain e.g. --toolchain path/aarch64-none-linux-gnu-"
             echo "  use --rebuild to rebuild after clean"
             echo "  use --clean to clean all build file"
             exit 1
             ;;
+        --toolchain)
+            TOOLCHAIN=$2
+            echo "toolchain: ${TOOLCHAIN}"
+            shift
+            ;;
         --rebuild)
             ${MAKE_PROGRAM} clean
             if [ -f "CMakeCache.txt" ]; then