toolchain: dl_toolchain: add support for aarch64 host

README.md

@@ -60,14 +60,16 @@ This project is based on original rt-n56u with latest mtk 4.4.198 kernel, which
     ```sh
     cd padavan-4.4/toolchain-mipsel
 
-    # (Recommend) Download prebuilt toolchain for x86_64 host
-    sh dl_toolchain.sh
+    # (Recommend) Download prebuilt toolchain for x86_64 or aarch64 host
+    ./dl_toolchain.sh
 
     # or build toolchain with crosstool-ng
     # ./build_toolchain
     ```
   - Modify template file and start compiling
     ```sh
+    cd padavan-4.4
+
     # (Optional) Modify template file
     # nano configs/templates/K2P.config
 

toolchain-mipsel/dl_toolchain.sh

@@ -1,14 +1,32 @@
 #!/bin/sh
 
 DIR="toolchain-4.4.x"
-DL_NAME="mipsel-linux-uclibc.tar.xz"
-DL_URL="https://github.com/hanwckf/padavan-toolchain/releases/download/linux-4.4-v1.0/$DL_NAME"
+DL_URL="https://github.com/hanwckf/padavan-toolchain/releases/download/linux-4.4-v1.0"
+
+dl() {
+	[ -z "$1" ] && return
+
+	echo "Download toolchain: $1"
+	curl -O -L "${DL_URL}/$1" && \
+	mkdir -p $DIR && \
+	tar -xf "${1}" -C $DIR
+}
 
 if [ -d $DIR ]; then
 	echo "$DIR exists!"
 	exit
 fi
 
-curl -O -L $DL_URL && \
-mkdir -p $DIR && \
-tar -xvf $DL_NAME -C $DIR
+ARCH="$(uname -m)"
+
+case $ARCH in
+	aarch64)
+		dl "aarch64_mipsel-linux-uclibc.tar.xz"
+		;;
+	x86_64)
+		dl "mipsel-linux-uclibc.tar.xz"
+		;;
+	*)
+		echo "Unknown ARCH: $ARCH"
+		exit 1
+esac