diff --git a/README.md b/README.md
index bea88a4..0593c8a 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,14 @@
 # rock64
 
-changes, Packages, Information
\ No newline at end of file
+changes, Packages, Information
+
+dd if=rksd_load.img of=/dev/mmcblk1 seek=64 conv=notrunc
+dd if=u-boot.itb of=/dev/mmcblk1 seek=16384 conv=notrunc
+
+layout, see:
+http://opensource.rock-chips.com/wiki_U-Boot
+http://opensource.rock-chips.com/wiki_Boot_option
+![alt text](./Rockchip_bootflow.jpg "Partition Layout")
+
+ARM-Trusted-Firmware:
+http://opensource.rock-chips.com/wiki_ATF
diff --git a/Rockchip_bootflow.jpg b/Rockchip_bootflow.jpg
new file mode 100644
index 0000000..a156568
Binary files /dev/null and b/Rockchip_bootflow.jpg differ