add digilent uboot submodule

DLX4 · DLX4 · commit b35e764c9bb6 · 2016-06-01T11:39:16.000+08:00
diff --git a/.gitmodules b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "u-boot-digilent/u-boot-digilent"]
 	path = u-boot-digilent/u-boot-digilent
 	url = git@github.com:Digilent/u-boot-digilent.git
+[submodule "toolchain/CodeSourcery"]
+	path = toolchain/CodeSourcery
+	url = git@github.com:xupsh/CodeSourcery.git
diff --git a/README.md b/README.md
@@ -11,4 +11,7 @@
 ├── linux-digilent-----------------------linux子模块<br>
 ├── mjpeg-streamer-182-------------------mjpeg-streamer工程<br>
 ├── README.md----------------------------readme<br>
-└── rootfs-------------------------------根文件系统<br>
+├── rootfs-------------------------------根文件系统<br>
+├── toolchain----------------------------交叉编辑工具链<br>
+└── u-boot-digilent----------------------uboot子模块<br>
+
diff --git a/toolchain/CodeSourcery b/toolchain/CodeSourcery
@@ -0,0 +1 @@
+Subproject commit e481b3ba3958bdae176cf21f13cc360c9b95db2e
