diff --git a/meta-witherspoon/recipes-phosphor/chassis/vcs-pre-post/vcs_on.sh b/meta-witherspoon/recipes-phosphor/chassis/vcs-pre-post/vcs_on.sh
new file mode 100644
index 0000000..4837575
--- /dev/null
+++ b/meta-witherspoon/recipes-phosphor/chassis/vcs-pre-post/vcs_on.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+# enable VCS rail with OPERATION
+# A side
+i2cset -y 4 0x70 0x00 0x01 b
+i2cset -y 4 0x70 0x02 0x1A b #respond to OPERATION
+i2cset -y 4 0x70 0x00 0x00 b
+# B side
+i2cset -y 5 0x70 0x00 0x01 b
+i2cset -y 5 0x70 0x02 0x1A b #respond to OPERATION
+i2cset -y 5 0x70 0x00 0x00 b