diff --git a/src/soc/intel/braswell/gfx.c b/src/soc/intel/braswell/gfx.c
index bf38d2e..703746d 100644
--- a/src/soc/intel/braswell/gfx.c
+++ b/src/soc/intel/braswell/gfx.c
@@ -2,6 +2,7 @@
  * This file is part of the coreboot project.
  *
  * Copyright 2013 Google Inc.
+ * Copyright (C) 2015 Intel Corp.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -17,250 +18,28 @@
  * Foundation, Inc.
  */
 
+#include "chip.h"
 #include <arch/io.h>
 #include <console/console.h>
-#include <delay.h>
 #include <device/device.h>
 #include <device/pci.h>
 #include <device/pci_ids.h>
 #include <reg_script.h>
-#include <stdlib.h>
-
 #include <soc/gfx.h>
-#include <soc/iosf.h>
 #include <soc/pci_devs.h>
 #include <soc/ramstage.h>
 
-#include "chip.h"
-
-#define GFX_TIMEOUT 100000 /* 100ms */
-
-/*
- * Lock Power Context Base Register to point to a 24KB block
- * of memory in GSM.  Power context save data is stored here.
- */
-static void gfx_lock_pcbase(device_t dev)
-{
-	struct resource *res = find_resource(dev, PCI_BASE_ADDRESS_0);
-	const u16 gms_size_map[17] = { 0,32,64,96,128,160,192,224,256,
-				       288,320,352,384,416,448,480,512 };
-	u32 pcsize = 24 << 10;  /* 24KB */
-	u32 wopcmsz = 0x100000; /* PAVP offset */
-	u32 gms, gmsize, pcbase;
-
-	gms = pci_read_config32(dev, GGC) & GGC_GSM_SIZE_MASK;
-	gms >>= 3;
-	if (gms > ARRAY_SIZE(gms_size_map))
-		return;
-	gmsize = gms_size_map[gms];
-
-	/* PcBase = BDSM + GMS Size - WOPCMSZ - PowerContextSize */
-	pcbase = pci_read_config32(dev, GSM_BASE) & 0xfff00000;
-	pcbase += (gmsize-1) * wopcmsz - pcsize;
-	pcbase |= 1; /* Lock */
-
-	write32((u32 *)(uintptr_t)(res->base + 0x182120), pcbase);
-}
-
-static const struct reg_script gfx_init_script[] = {
-	/* Allow-Wake render/media wells */
-	REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0x130090, ~1, 1),
-	REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x130094, 1, 1, GFX_TIMEOUT),
-	/* Render Force-Wake */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b0, 0x80008000),
-	REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300b4, 0x8000, 0x8000,
-	               GFX_TIMEOUT),
-	/* Media Force-Wake */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b8, 0x80008000),
-	REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300bc, 0x8000, 0x8000,
-	               GFX_TIMEOUT),
-	/* Workaround - X0:261954/A0:261955 */
-	REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0x182060, ~0xf, 1),
-
-	/*
-	 * PowerMeter Weights
-	 */
-
-	/* SET1 */
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA800, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA804, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA808, 0x0000ff0A),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA80C, 0x1D000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA810, 0xAC004900),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA814, 0x000F0000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA818, 0x5A000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA81C, 0x2600001F),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA820, 0x00090000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA824, 0x2000ff00),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA828, 0xff090016),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA82C, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA830, 0x00000100),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA834, 0x00A00F51),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA838, 0x000B0000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA83C, 0xcb7D3307),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA840, 0x003C0000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA844, 0xFFFF0000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA848, 0x00220000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA84c, 0x43000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA850, 0x00000800),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA854, 0x00000F00),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA858, 0x00000021),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA85c, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA860, 0x00190000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xAA80, 0x00FF00FF),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xAA84, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x1300A4, 0x00000000),
-	/* SET2 */
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA900, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA904, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA908, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa90c, 0x1D000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa910, 0xAC005000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa914, 0x000F0000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa918, 0x5A000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa91c, 0x2600001F),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa920, 0x00090000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa924, 0x2000ff00),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa928, 0xff090016),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa92c, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa930, 0x00000100),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa934, 0x00A00F51),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xa938, 0x000B0000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA93C, 0xcb7D3307),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA940, 0x003C0000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA944, 0xFFFF0000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA948, 0x00220000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA94C, 0x43000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA950, 0x00000800),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA954, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA960, 0x00000000),
-	/* SET3 */
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xaa3c, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xaa54, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xaa60, 0x00000000),
-	/* Enable PowerMeter Counters */
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA248, 0x00000058),
-
-	/* Program PUNIT_GPU_EC_VIRUS based on DPTF SDP */
-	/* SDP Profile 4 == 0x11940, others 0xcf08 */
-	REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_GPU_EC_VIRUS, 0xcf08),
-
-	/* GfxPause */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa000, 0x00071388),
-
-	/* Dynamic EU Control Settings */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa080, 0x00000004),
-
-	/* Lock ECO Bit Settings */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa180, 0x80000000),
-
-	/* DOP Clock Gating */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9424, 0x00000001),
-
-	/* MBCunit will send the VCR (Fuse) writes as NP-W */
-	REG_RES_RMW32(PCI_BASE_ADDRESS_0, 0x907c, 0xfffeffff, 0x00010000),
-
-	/*
-	 * RC6 Settings
-	 */
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA090, 0x00000000),
-	/* RC1e - RC6/6p - RC6pp Wake Rate Limits */
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA09C, 0x00280000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0A8, 0x0001E848),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0AC, 0x00000019),
-	/* RC Sleep / RCx Thresholds */
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0B0, 0x00000000),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA0B8, 0x00000557),
-
-	/*
-	 * Turbo Settings
-	 */
-
-	/* Render/Video/Blitter Idle Max Count */
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x2054,  0x0000000A),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x12054, 0x0000000A),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0x22054, 0x0000000A),
-	/* RP Down Timeout */
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA010,  0x000F4240),
-
-	/*
-	 * Turbo Control Settings
-	 */
-
-	/* RP Up/Down Threshold */
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA02C, 0x0000E8E8),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA030, 0x0003BD08),
-	/* RP Up/Down EI */
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA068, 0x000101D0),
-	REG_RES_OR32(PCI_BASE_ADDRESS_0, 0xA06C, 0x00055730),
-
-	/* RP Idle Hysteresis */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa070, 0x0000000a),
-
-	/* HW RC6 Control Settings */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa090, 0x11000000),
-
-	/* RP Control */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa024, 0x00000592),
-
-	/* Enable PM Interrupts */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x44024, 0x03000000),
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x4402c, 0x03000076),
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0xa168, 0x0000007e),
-
-	/* Aggressive Clock Gating */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9400, 0),
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9404, 0),
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x9408, 0),
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x940c, 0),
-
-	/* Enable Gfx Turbo. */
-	REG_IOSF_RMW(IOSF_PORT_PMC, SB_BIOS_CONFIG,
-			~SB_BIOS_CONFIG_GFX_TURBO_DIS, 0),
-	REG_SCRIPT_END
-};
-
 static const struct reg_script gpu_pre_vbios_script[] = {
 	/* Make sure GFX is bus master with MMIO access */
 	REG_PCI_OR32(PCI_COMMAND, PCI_COMMAND_MASTER|PCI_COMMAND_MEMORY),
-	/* Display */
-	REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xc0),
-	REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xc0, 0xc0,
-	              GFX_TIMEOUT),
-	/* Tx/Rx Lanes */
-	REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xfff0c0),
-	REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfff0c0, 0xfff0c0,
-	              GFX_TIMEOUT),
-	/* Common Lane */
-	REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xfffcc0),
-	REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfffcc0, 0xfffcc0,
-	              GFX_TIMEOUT),
-	/* Ungating Tx only */
-	REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xf00cc0),
-	REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfffcc0, 0xf00cc0,
-	              GFX_TIMEOUT),
-	/* Ungating Common Lane only */
-	REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xf000c0),
-	REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xffffc0, 0xf000c0,
-	              GFX_TIMEOUT),
-	/* Ungating Display */
-	REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PWRGT_CONTROL, 0xf00000),
-	REG_IOSF_POLL(IOSF_PORT_PMC, PUNIT_PWRGT_STATUS, 0xfffff0, 0xf00000,
-	              GFX_TIMEOUT),
 	REG_SCRIPT_END
 };
 
 static const struct reg_script gfx_post_vbios_script[] = {
-	/* Deassert Render Force-Wake */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b0, 0x80000000),
-	REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300b4, 0x8000, 0, GFX_TIMEOUT),
-	/* Deassert Media Force-Wake */
-	REG_RES_WRITE32(PCI_BASE_ADDRESS_0, 0x1300b8, 0x80000000),
-	REG_RES_POLL32(PCI_BASE_ADDRESS_0, 0x1300bc, 0x8000, 0, GFX_TIMEOUT),
 	/* Set Lock bits */
-	REG_PCI_RMW32(GGC, 0xffffffff, 1),
-	REG_PCI_RMW32(GSM_BASE, 0xffffffff, 1),
-	REG_PCI_RMW32(GTT_BASE, 0xffffffff, 1),
+	REG_PCI_RMW32(GGC, 0xffffffff, GGC_GGCLCK),
+	REG_PCI_RMW32(GSM_BASE, 0xffffffff, GSM_BDSM_LOCK),
+	REG_PCI_RMW32(GTT_BASE, 0xffffffff, GTT_BGSM_LOCK),
 	REG_SCRIPT_END
 };
 
@@ -271,111 +50,28 @@
 
 static void gfx_pre_vbios_init(device_t dev)
 {
+	printk(BIOS_SPEW, "%s/%s ( %s )\n",
+			__FILE__, __func__, dev_name(dev));
 	printk(BIOS_INFO, "GFX: Pre VBIOS Init\n");
 	gfx_run_script(dev, gpu_pre_vbios_script);
 }
 
-static void gfx_pm_init(device_t dev)
-{
-	printk(BIOS_INFO, "GFX: Power Management Init\n");
-	gfx_run_script(dev, gfx_init_script);
-
-	/* Lock power context base */
-	gfx_lock_pcbase(dev);
-}
-
 static void gfx_post_vbios_init(device_t dev)
 {
+	printk(BIOS_SPEW, "%s/%s ( %s )\n",
+			__FILE__, __func__, dev_name(dev));
 	printk(BIOS_INFO, "GFX: Post VBIOS Init\n");
 	gfx_run_script(dev, gfx_post_vbios_script);
 }
 
-static void set_backlight_pwm(device_t dev, uint32_t bklt_reg, int req_hz)
-{
-	int divider;
-	struct resource *res;
-
-	res = find_resource(dev, PCI_BASE_ADDRESS_0);
-
-	if (res == NULL)
-		return;
-
-	/* Default to 200 Hz if nothing is set. */
-	if (req_hz == 0)
-		req_hz = 200;
-
-	/* Base clock is 25MHz */
-	divider = 25 * 1000 * 1000 / (16 * req_hz);
-
-	/* Do not set duty cycle (lower 16 bits). Just set the divider. */
-	write32((u32 *)(uintptr_t)(res->base + bklt_reg), divider << 16);
-}
-
-static void gfx_panel_setup(device_t dev)
-{
-	struct soc_intel_baytrail_config *config = dev->chip_info;
-	struct reg_script gfx_pipea_init[] = {
-		/* CONTROL */
-		REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_CONTROL),
-				PP_CONTROL_UNLOCK | PP_CONTROL_EDP_FORCE_VDD),
-		/* POWER ON */
-		REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_ON_DELAYS),
-				(config->gpu_pipea_port_select << 30 |
-				 config->gpu_pipea_power_on_delay << 16 |
-				 config->gpu_pipea_light_on_delay)),
-		/* POWER OFF */
-		REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_OFF_DELAYS),
-				(config->gpu_pipea_power_off_delay << 16 |
-				 config->gpu_pipea_light_off_delay)),
-		/* DIVISOR */
-		REG_RES_RMW32(PCI_BASE_ADDRESS_0, PIPEA_REG(PP_DIVISOR),
-			      ~0x1f, config->gpu_pipea_power_cycle_delay),
-		REG_SCRIPT_END
-	};
-	struct reg_script gfx_pipeb_init[] = {
-		/* CONTROL */
-		REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_CONTROL),
-				PP_CONTROL_UNLOCK | PP_CONTROL_EDP_FORCE_VDD),
-		/* POWER ON */
-		REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_ON_DELAYS),
-				(config->gpu_pipeb_port_select << 30 |
-				 config->gpu_pipeb_power_on_delay << 16 |
-				 config->gpu_pipeb_light_on_delay)),
-		/* POWER OFF */
-		REG_RES_WRITE32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_OFF_DELAYS),
-				(config->gpu_pipeb_power_off_delay << 16 |
-				 config->gpu_pipeb_light_off_delay)),
-		/* DIVISOR */
-		REG_RES_RMW32(PCI_BASE_ADDRESS_0, PIPEB_REG(PP_DIVISOR),
-			      ~0x1f, config->gpu_pipeb_power_cycle_delay),
-		REG_SCRIPT_END
-	};
-
-	if (config->gpu_pipea_port_select) {
-		printk(BIOS_INFO, "GFX: Initialize PIPEA\n");
-		reg_script_run_on_dev(dev, gfx_pipea_init);
-		set_backlight_pwm(dev, PIPEA_REG(BACKLIGHT_CTL),
-		                  config->gpu_pipea_pwm_freq_hz);
-	}
-
-	if (config->gpu_pipeb_port_select) {
-		printk(BIOS_INFO, "GFX: Initialize PIPEB\n");
-		reg_script_run_on_dev(dev, gfx_pipeb_init);
-		set_backlight_pwm(dev, PIPEB_REG(BACKLIGHT_CTL),
-		                  config->gpu_pipeb_pwm_freq_hz);
-	}
-}
-
 static void gfx_init(device_t dev)
 {
+	printk(BIOS_SPEW, "%s/%s ( %s )\n",
+			__FILE__, __func__, dev_name(dev));
+
 	/* Pre VBIOS Init */
 	gfx_pre_vbios_init(dev);
 
-	/* Power Management Init */
-	gfx_pm_init(dev);
-
-	gfx_panel_setup(dev);
-
 	/* Run VBIOS */
 	pci_dev_init(dev);
 
@@ -383,8 +79,28 @@
 	gfx_post_vbios_init(dev);
 }
 
+static void gfx_read_resources(device_t dev)
+{
+	printk(BIOS_SPEW, "%s/%s ( %s )\n",
+			__FILE__, __func__, dev_name(dev));
+
+	pci_dev_read_resources(dev);
+
+#if IS_ENABLED(CONFIG_MARK_GRAPHICS_MEM_WRCOMB)
+	struct resource *res;
+
+	/* Set the graphics memory to write combining. */
+	res = find_resource(dev, PCI_BASE_ADDRESS_2);
+	if (res == NULL) {
+		printk(BIOS_DEBUG, "GFX: memory resource not found.\n");
+		return;
+	}
+	res->flags |= IORESOURCE_WRCOMB;
+#endif
+}
+
 static struct device_operations gfx_device_ops = {
-	.read_resources		= pci_dev_read_resources,
+	.read_resources		= gfx_read_resources,
 	.set_resources		= pci_dev_set_resources,
 	.enable_resources	= pci_dev_enable_resources,
 	.init			= gfx_init,