diff --git a/board/glados/defconfig b/board/glados/defconfig
index eaf70a1..5cc4991 100644
--- a/board/glados/defconfig
+++ b/board/glados/defconfig
@@ -18,6 +18,8 @@
 CONFIG_KERNEL_ZIMAGE=y
 
 # Drivers
+CONFIG_DRIVER_BUS_I2C_DESIGNWARE=y
+CONFIG_DRIVER_BUS_I2C_DESIGNWARE_PCI=y
 CONFIG_DRIVER_EC_CROS=y
 CONFIG_DRIVER_EC_CROS_LPC=y
 CONFIG_DRIVER_EC_CROS_PASSTHRU=y
@@ -27,6 +29,9 @@
 CONFIG_DRIVER_INPUT_USB=y
 CONFIG_DRIVER_POWER_PCH=y
 CONFIG_DRIVER_SDHCI=y
+CONFIG_DRIVER_SOUND_GPIO_PDM=y
+CONFIG_DRIVER_SOUND_ROUTE=y
+CONFIG_DRIVER_SOUND_SSM4567=y
 CONFIG_DRIVER_STORAGE_MMC=y
 CONFIG_DRIVER_STORAGE_SDHCI_PCI=y
 CONFIG_DRIVER_TPM_LPC=y
diff --git a/src/board/glados/board.c b/src/board/glados/board.c
index d4cf7e1..8cb7614 100644
--- a/src/board/glados/board.c
+++ b/src/board/glados/board.c
@@ -28,18 +28,22 @@
 
 #include "base/init_funcs.h"
 #include "base/list.h"
+#include "drivers/bus/i2c/designware.h"
+#include "drivers/bus/i2c/i2c.h"
 #include "drivers/ec/cros/lpc.h"
 #include "drivers/flash/flash.h"
 #include "drivers/flash/memmapped.h"
 #include "drivers/gpio/skylake.h"
 #include "drivers/gpio/sysinfo.h"
 #include "drivers/power/pch.h"
+#include "drivers/sound/gpio_pdm.h"
+#include "drivers/sound/route.h"
+#include "drivers/sound/ssm4567.h"
 #include "drivers/storage/blockdev.h"
 #include "drivers/storage/sdhci.h"
 #include "drivers/tpm/lpc.h"
 #include "drivers/tpm/tpm.h"
 #include "vboot/util/flag.h"
-#include "drivers/bus/usb/usb.h"
 
 /*
  * Clock frequencies for the eMMC and SD ports are defined below. The minimum
@@ -82,6 +86,28 @@
 	list_insert_after(&sd->mmc_ctrlr.ctrlr.list_node,
 				&removable_block_dev_controllers);
 
+	/* Speaker Amp Codec is on I2C4 */
+	DesignwareI2c *i2c4 =
+		new_pci_designware_i2c(PCI_DEV(0, 0x19, 2), 400000);
+	ssm4567Codec *speaker_amp_left =
+		new_ssm4567_codec(&i2c4->ops, 0x34, SSM4567_MODE_PDM);
+
+	/* Use GPIO to bit-bang PDM to the codec */
+	GpioCfg *i2s2_sclk = new_skylake_gpio_output(GPP_F0, 0);
+	GpioCfg *i2s2_txd  = new_skylake_gpio_output(GPP_F2, 0);
+	GpioPdm *pdm = new_gpio_pdm(&i2s2_sclk->ops,	/* PDM Clock GPIO */
+				    &i2s2_txd->ops,	/* PDM Data GPIO */
+				    85000,		/* Clock Start */
+				    16000,		/* Sample Rate */
+				    2,			/* Channels */
+				    1000);		/* Volume */
+
+	/* Connect the Codec to the PDM source */
+	SoundRoute *sound = new_sound_route(&pdm->ops);
+	list_insert_after(&speaker_amp_left->component.list_node,
+			  &sound->components);
+	sound_set_ops(&sound->ops);
+
 	return 0;
 }