diff --git a/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-disable.sh b/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-disable.sh
new file mode 100755
index 0000000..96f6cf8
--- /dev/null
+++ b/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-disable.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+i2cset -y 4 0x70 0x00 0x00 b    # VDD 0  - PAGE set
+i2cset -y 4 0x70 0x01 0x80 b    # VDD 0
+i2cset -y 4 0x70 0x00 0x01 b    # VCS 0  - PAGE set
+i2cset -y 4 0x70 0x01 0x80 b    # VCS 0
+i2cset -y 4 0x70 0x00 0x00 b    # VCS 0  - PAGE reset
+i2cset -y 4 0x72 0x00 0x00 b    # VDN 0  - PAGE set
+i2cset -y 4 0x72 0x01 0x80 b    # VDN 0
+i2cset -y 5 0x70 0x00 0x00 b    # VDD 1  - PAGE set
+i2cset -y 5 0x70 0x01 0x80 b    # VDD 1
+i2cset -y 5 0x70 0x00 0x01 b    # VCS 1  - PAGE set
+i2cset -y 5 0x70 0x01 0x80 b    # VCS 1
+i2cset -y 5 0x70 0x00 0x00 b    # VCS 1  - PAGE reset
+i2cset -y 5 0x72 0x00 0x00 b    # VDN 1  - PAGE set
+i2cset -y 5 0x72 0x01 0x80 b    # VDN 1
diff --git a/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-disable@.service b/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-disable@.service
new file mode 100755
index 0000000..7a1df99
--- /dev/null
+++ b/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-disable@.service
@@ -0,0 +1,16 @@
+[Unit]
+Description=Disable the AVS bus on the VRMs
+Wants=op-power-start@.service
+After=op-power-start@.service
+Before=avsbus-enable@%i.service
+Conflicts=obmc-chassis-poweroff@%i.target
+ConditionPathExists=!/run/openbmc/chassis@%i-on
+
+[Service]
+ExecStart=/usr/bin/env avsbus-disable.sh
+SyslogIdentifier=avsbus-disable.sh
+Type=oneshot
+RemainAfterExit=yes
+
+[Install]
+WantedBy=obmc-chassis-poweron@%i.target
diff --git a/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-enable.sh b/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-enable.sh
new file mode 100755
index 0000000..67acc73
--- /dev/null
+++ b/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-enable.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+i2cset -y 4 0x70 0x00 0x00 b    # VDD 0  - PAGE set
+i2cset -y 4 0x70 0x01 0xB0 b    # VDD 0
+i2cset -y 4 0x70 0x00 0x01 b    # VCS 0  - PAGE set
+i2cset -y 4 0x70 0x01 0xB0 b    # VCS 0
+i2cset -y 4 0x70 0x00 0x00 b    # VCS 0  - PAGE reset
+i2cset -y 4 0x72 0x00 0x00 b    # VDN 0  - PAGE set
+i2cset -y 4 0x72 0x01 0xB0 b    # VDN 0
+i2cset -y 5 0x70 0x00 0x00 b    # VDD 1  - PAGE set
+i2cset -y 5 0x70 0x01 0xB0 b    # VDD 1
+i2cset -y 5 0x70 0x00 0x01 b    # VCS 1  - PAGE set
+i2cset -y 5 0x70 0x01 0xB0 b    # VCS 1
+i2cset -y 5 0x70 0x00 0x00 b    # VCS 1  - PAGE reset
+i2cset -y 5 0x72 0x00 0x00 b    # VDN 1  - PAGE set
+i2cset -y 5 0x72 0x01 0xB0 b    # VDN 1
diff --git a/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-enable@.service b/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-enable@.service
new file mode 100755
index 0000000..810c92e
--- /dev/null
+++ b/meta-witherspoon/recipes-phosphor/chassis/avsbus-control/mihawk/avsbus-enable@.service
@@ -0,0 +1,15 @@
+[Unit]
+Description=Enable the AVS bus on VRMs
+Wants=avsbus-disable@%i.service
+After=avsbus-disable@%i.service
+Conflicts=obmc-chassis-poweroff@%i.target
+ConditionPathExists=!/run/openbmc/chassis@%i-on
+
+[Service]
+ExecStart=/usr/bin/env avsbus-enable.sh
+SyslogIdentifier=avsbus-enable.sh
+Type=oneshot
+RemainAfterExit=yes
+
+[Install]
+WantedBy=obmc-chassis-poweron@%i.target