nb/intel/sandybridge: Remove the C native graphic init

Libgfxinit provides a better alternative to the native C init. While
libgfxinit mandates an ada compiler, we want to encourage use of it
since it is in much better shape and is actually maintained.

This way libgfxinit also gets build-tested by Jenkins.

Change-Id: Ic6678d3455f1116e7e67a67b465a79df020b2399
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/27532
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

5 files changed, 2 insertions, 1020 deletions

diff --git a/src/northbridge/intel/sandybridge/Kconfig b/src/northbridge/intel/sandybridge/Kconfig
index 5023319ebb..b3827c0d4c 100644
--- a/src/northbridge/intel/sandybridge/Kconfig
+++ b/src/northbridge/intel/sandybridge/Kconfig
@@ -77,19 +77,6 @@ config CACHE_MRC_SIZE_KB
 	int
 	default 512
 
-config SANDYBRIDGE_IVYBRIDGE_LVDS
-	def_bool n
-	select VGA
-	select MAINBOARD_HAS_NATIVE_VGA_INIT
-
-config IF_NATIVE_VGA_INIT
-	def_bool y
-	depends on MAINBOARD_DO_NATIVE_VGA_INIT
-	select VGA
-	select INTEL_EDID
-	select HAVE_LINEAR_FRAMEBUFFER
-	select HAVE_VGA_TEXT_FRAMEBUFFER
-
 config BOOTBLOCK_NORTHBRIDGE_INIT
 	string
 	default "northbridge/intel/sandybridge/bootblock.c"
diff --git a/src/northbridge/intel/sandybridge/Makefile.inc b/src/northbridge/intel/sandybridge/Makefile.inc
index 304ea302a5..ecab18a818 100644
--- a/src/northbridge/intel/sandybridge/Makefile.inc
+++ b/src/northbridge/intel/sandybridge/Makefile.inc
@@ -19,8 +19,6 @@ ramstage-y += ram_calc.c
 ramstage-y += northbridge.c
 ramstage-y += pcie.c
 ramstage-y += gma.c
-ramstage-$(CONFIG_SANDYBRIDGE_IVYBRIDGE_LVDS) += gma_sandybridge_lvds.c
-ramstage-$(CONFIG_SANDYBRIDGE_IVYBRIDGE_LVDS) += gma_ivybridge_lvds.c
 
 ramstage-y += acpi.c
 
diff --git a/src/northbridge/intel/sandybridge/gma.c b/src/northbridge/intel/sandybridge/gma.c
index 150f78aa4f..2f797f1c30 100644
--- a/src/northbridge/intel/sandybridge/gma.c
+++ b/src/northbridge/intel/sandybridge/gma.c
@@ -635,31 +635,15 @@ static void gma_func0_init(struct device *dev)
 
 	/* Running graphics init on S3 breaks Linux drm driver. */
 	if (!acpi_is_wakeup_s3() &&
-	    (IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT) ||
-	    IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT))) {
+	    IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
 		if (vga_disable) {
 			printk(BIOS_INFO,
 			       "IGD is not decoding legacy VGA MEM and IO: skipping NATIVE graphic init\n");
 		} else {
 			/* This should probably run before post VBIOS init. */
 			printk(BIOS_SPEW, "Initializing VGA without OPROM.\n");
-			u8 *mmiobase;
-			u32 iobase, physbase, graphics_base;
-			struct northbridge_intel_sandybridge_config *conf = dev->chip_info;
-			iobase = dev->resource_list[2].base;
-			mmiobase = res2mmio(&dev->resource_list[0], 0, 0);
-			physbase = pci_read_config32(dev, 0x5c) & ~0xf;
-			graphics_base = dev->resource_list[1].base;
-
 			int lightup_ok;
-			if (IS_ENABLED(CONFIG_MAINBOARD_USE_LIBGFXINIT)) {
-				gma_gfxinit(&lightup_ok);
-			} else {
-				lightup_ok = i915lightup_sandy(&conf->gfx,
-							       physbase,
-							       iobase, mmiobase,
-							       graphics_base);
-			}
+			gma_gfxinit(&lightup_ok);
 			if (lightup_ok)
 				gfx_set_init_done(1);
 		}
diff --git a/src/northbridge/intel/sandybridge/gma_ivybridge_lvds.c b/src/northbridge/intel/sandybridge/gma_ivybridge_lvds.c
deleted file mode 100644
index 6371c16188..0000000000
--- a/src/northbridge/intel/sandybridge/gma_ivybridge_lvds.c
+++ /dev/null
@@ -1,511 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013, 2014 Vladimir Serbinenko
- *
- * 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
- * the Free Software Foundation; version 2 or (at your option)
- *  any later version of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <arch/io.h>
-#include <console/console.h>
-#include <delay.h>
-#include <device/device.h>
-#include <string.h>
-
-#include <drivers/intel/gma/edid.h>
-#include <drivers/intel/gma/i915.h>
-#include <drivers/intel/gma/intel_bios.h>
-#include "gma.h"
-#include "chip.h"
-#include <pc80/vga.h>
-#include <pc80/vga_io.h>
-#include <device/pci_def.h>
-#include <device/pci_rom.h>
-
-static void link_train(u8 *mmio)
-{
-	write32(mmio+0xf000c,0x40);
-	write32(mmio+0x60100,0x40000);
-	write32(mmio+0xf0018,0x8ff);
-	write32(mmio+0xf1018,0x8ff);
-	write32(mmio+0xf000c,0x2040);
-	mdelay(1);
-	write32(mmio+0xf000c,0x2050);
-	write32(mmio+0x60100,0x44000);
-	mdelay(1);
-	write32(mmio+0x70008,0x40);
-	write32(mmio+0xe0300,0x60000418);
-	write32(mmio+0xf000c,0x22050);
-	write32(mmio+0x70008,0x50);
-	write32(mmio+0x70008,0x80000050);
-}
-
-static void link_normal_operation(u8 *mmio)
-{
-	write32(mmio + FDI_TX_CTL(0), 0x80044f02);
-	write32(mmio + FDI_RX_CTL(0),
-		FDI_RX_ENABLE | FDI_6BPC
-		| 0x2f50);
-}
-
-static void enable_port(u8 *mmio)
-{
-	write32(mmio + 0xec008, 0x2c010000);
-	write32(mmio + 0xec020, 0x2c010000);
-	write32(mmio + 0xec038, 0x2c010000);
-	write32(mmio + 0xec050, 0x2c010000);
-	write32(mmio + 0xec408, 0x2c010000);
-	write32(mmio + 0xec420, 0x2c010000);
-	write32(mmio + 0xec438, 0x2c010000);
-	write32(mmio + 0xec450, 0x2c010000);
-	write32(mmio + 0xf0010, 0x200090);
-	write32(mmio + 0xf1010, 0x200090);
-	write32(mmio + 0xf2010, 0x200090);
-	write32(mmio + 0xfd034, 0x8420000);
-	write32(mmio + 0x45010, 0x3);
-	write32(mmio + 0xf0060, 0x10);
-	write32(mmio + 0xf1060, 0x10);
-	write32(mmio + 0xf2060, 0x10);
-	write32(mmio + 0x9840, 0x0);
-	write32(mmio + 0x42000, 0xa0000000);
-	read32(mmio + 0xe4100);
-	write32(mmio + 0xc4030, 0x10);
-	write32(mmio + 0xe4110, 0x8004003e);
-	write32(mmio + 0xe4114, 0x80060000);
-	write32(mmio + 0xe4118, 0x1000000);
-	read32(mmio + 0xe4110);
-	write32(mmio + 0xe4110, 0x5344003e);
-	read32(mmio + 0xe4110);
-	write32(mmio + 0xe4110, 0x8054003e);
-	read32(mmio + 0xe4110);
-	read32(mmio + 0xe4110);
-	write32(mmio + 0xe4110, 0x5344003e);
-	mdelay(1);
-	read32(mmio + 0xe4110);
-	write32(mmio + 0xe4110, 0x8054003e);
-	read32(mmio + 0xe4110);
-	read32(mmio + 0xe4110);
-	write32(mmio + 0xe4110, 0x5344003e);
-	mdelay(1);
-	read32(mmio + 0xe4110);
-	write32(mmio + 0xe4110, 0x8054003e);
-	read32(mmio + 0xe4110);
-	read32(mmio + 0xe4110);
-	write32(mmio + 0xe4110, 0x5344003e);
-	mdelay(1);
-	read32(mmio + 0xc4000);
-	read32(mmio + 0xe1140);
-	write32(mmio + 0xc4030, 0x10);
-	read32(mmio + 0xc4000);
-	read32(mmio + 0xe4200);
-	write32(mmio + 0xc4030, 0x1010);
-	write32(mmio + 0xe4210, 0x8004003e);
-	write32(mmio + 0xe4214, 0x80060000);
-	write32(mmio + 0xe4218, 0x1002000);
-	read32(mmio + 0xe4210);
-	write32(mmio + 0xe4210, 0x5344003e);
-	read32(mmio + 0xe4210);
-	write32(mmio + 0xe4210, 0x8054003e);
-	read32(mmio + 0xe4210);
-	read32(mmio + 0xe4210);
-	write32(mmio + 0xe4210, 0x5344003e);
-	mdelay(1);
-	read32(mmio + 0xe4210);
-	write32(mmio + 0xe4210, 0x8054003e);
-	read32(mmio + 0xe4210);
-	read32(mmio + 0xe4210);
-	write32(mmio + 0xe4210, 0x5344003e);
-	mdelay(1);
-	read32(mmio + 0xe4210);
-	write32(mmio + 0xe4210, 0x8054003e);
-	read32(mmio + 0xe4210);
-	read32(mmio + 0xe4210);
-	write32(mmio + 0xe4210, 0x5344003e);
-	mdelay(1);
-	read32(mmio + 0xc4000);
-}
-
-int i915lightup_ivy(const struct i915_gpu_controller_info *info,
-		u32 physbase, u16 piobase, u8 *mmio, u32 lfb)
-{
-	int i;
-	u8 edid_data[128];
-	struct edid edid;
-
-	if (!IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT))
-		return 0;
-
-	write32(mmio + 0x00070080, 0x00000000);
-	write32(mmio + DSPCNTR(0), 0x00000000);
-	write32(mmio + 0x00071180, 0x00000000);
-	write32(mmio + CPU_VGACNTRL, 0x0000298e | VGA_DISP_DISABLE);
-	write32(mmio + 0x0007019c, 0x00000000);
-	write32(mmio + 0x0007119c, 0x00000000);
-	write32(mmio + 0x000fc008, 0x2c010000);
-	write32(mmio + 0x000fc020, 0x2c010000);
-	write32(mmio + 0x000fc038, 0x2c010000);
-	write32(mmio + 0x000fc050, 0x2c010000);
-	write32(mmio + 0x000fc408, 0x2c010000);
-	write32(mmio + 0x000fc420, 0x2c010000);
-	write32(mmio + 0x000fc438, 0x2c010000);
-	write32(mmio + 0x000fc450, 0x2c010000);
-	vga_gr_write(0x18, 0);
-	write32(mmio + 0x00042004, 0x02000000);
-	write32(mmio + 0x000fd034, 0x8421ffe0);
-
-	/* Setup GTT.  */
-	for (i = 0; i < 0x2000; i++)
-	{
-		outl((i << 2) | 1, piobase);
-		outl(physbase + (i << 12) + 1, piobase + 4);
-	}
-
-	vga_misc_write(0x67);
-
-	u8 cr[] = { 0x5f, 0x4f, 0x50, 0x82, 0x55, 0x81, 0xbf, 0x1f,
-		    0x00, 0x4f, 0x0d, 0x0e, 0x00, 0x00, 0x00, 0x00,
-		    0x9c, 0x8e, 0x8f, 0x28, 0x1f, 0x96, 0xb9, 0xa3,
-		    0xff
-	};
-	vga_cr_write(0x11, 0);
-
-	for (i = 0; i <= 0x18; i++)
-		vga_cr_write(i, cr[i]);
-
-	enable_port(mmio);
-
-	intel_gmbus_read_edid(mmio + PCH_GMBUS0, GMBUS_PORT_PANEL, 0x50,
-			edid_data, sizeof(edid_data));
-	intel_gmbus_stop(mmio + PCH_GMBUS0);
-	decode_edid(edid_data,
-		    sizeof(edid_data), &edid);
-
-
-	/* Disable screen memory to prevent garbage from appearing.  */
-	vga_sr_write(1, vga_sr_read(1) | 0x20);
-
-	u32 hactive = edid.x_resolution;
-	u32 vactive = edid.y_resolution;
-	u32 right_border = edid.mode.hborder;
-	u32 bottom_border = edid.mode.vborder;
-	int hpolarity = (edid.mode.phsync == '-');
-	int vpolarity = (edid.mode.pvsync == '-');
-	u32 vsync = edid.mode.vspw;
-	u32 hsync = edid.mode.hspw;
-	u32 vblank = edid.mode.vbl;
-	u32 hblank = edid.mode.hbl;
-	u32 hfront_porch = edid.mode.hso;
-	u32 vfront_porch = edid.mode.vso;
-
-	u32 candp1, candn;
-	u32 best_delta = 0xffffffff;
-
-	u32 target_frequency = (
-		edid.mode.lvds_dual_channel ? edid.mode.pixel_clock
-		: (2 * edid.mode.pixel_clock));
-	u32 pixel_p1 = 1;
-	u32 pixel_n = 1;
-	u32 pixel_m1 = 1;
-	u32 pixel_m2 = 1;
-
-	vga_textmode_init();
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
-		vga_sr_write(1, 1);
-		vga_sr_write(0x2, 0xf);
-		vga_sr_write(0x3, 0x0);
-		vga_sr_write(0x4, 0xe);
-		vga_gr_write(0, 0x0);
-		vga_gr_write(1, 0x0);
-		vga_gr_write(2, 0x0);
-		vga_gr_write(3, 0x0);
-		vga_gr_write(4, 0x0);
-		vga_gr_write(5, 0x0);
-		vga_gr_write(6, 0x5);
-		vga_gr_write(7, 0xf);
-		vga_gr_write(0x10, 0x1);
-		vga_gr_write(0x11, 0);
-
-		edid.bytes_per_line = (edid.bytes_per_line + 63) & ~63;
-
-		write32(mmio + DSPCNTR(0), DISPPLANE_BGRX888);
-		write32(mmio + DSPADDR(0), 0);
-		write32(mmio + DSPSTRIDE(0), edid.bytes_per_line);
-		write32(mmio + DSPSURF(0), 0);
-		for (i = 0; i < 0x100; i++)
-			write32(mmio + LGC_PALETTE(0) + 4 * i, i * 0x010101);
-	}
-
-	/* Find suitable divisors.  */
-	for (candp1 = 1; candp1 <= 8; candp1++) {
-		for (candn = 5; candn <= 10; candn++) {
-			u32 cur_frequency;
-			u32 m; /* 77 - 131.  */
-			u32 denom; /* 35 - 560.  */
-			u32 current_delta;
-
-			denom = candn * candp1 * 7;
-			/* Doesn't overflow for up to
-			   5000000 kHz = 5 GHz.  */
-			m = (target_frequency * denom + 60000) / 120000;
-
-			if (m < 77 || m > 131)
-				continue;
-
-			cur_frequency = (120000 * m) / denom;
-			if (target_frequency > cur_frequency)
-				current_delta = target_frequency - cur_frequency;
-			else
-				current_delta = cur_frequency - target_frequency;
-
-
-			if (best_delta > current_delta) {
-				best_delta = current_delta;
-				pixel_n = candn;
-				pixel_p1 = candp1;
-				pixel_m2 = ((m + 3) % 5) + 7;
-				pixel_m1 = (m - pixel_m2) / 5;
-			}
-		}
-	}
-
-	if (best_delta == 0xffffffff) {
-		printk (BIOS_ERR, "Couldn't find GFX clock divisors\n");
-		return 0;
-	}
-
-	u32 link_frequency = info->link_frequency_270_mhz ? 270000 : 162000;
-	u32 data_m1;
-	u32 data_n1 = 0x00800000;
-	u32 link_m1;
-	u32 link_n1 = 0x00080000;
-
-	link_m1 = ((uint64_t)link_n1 * edid.mode.pixel_clock) / link_frequency;
-
-	data_m1 = ((uint64_t)data_n1 * 18 * edid.mode.pixel_clock)
-		/ (link_frequency * 8);
-
-	printk(BIOS_INFO, "bringing up panel at resolution %d x %d\n",
-	       hactive, vactive);
-	printk(BIOS_DEBUG, "Borders %d x %d\n",
-	       right_border, bottom_border);
-	printk(BIOS_DEBUG, "Blank %d x %d\n",
-	       hblank, vblank);
-	printk(BIOS_DEBUG, "Sync %d x %d\n",
-	       hsync, vsync);
-	printk(BIOS_DEBUG, "Front porch %d x %d\n",
-	       hfront_porch, vfront_porch);
-	printk(BIOS_DEBUG, (info->use_spread_spectrum_clock
-			    ? "Spread spectrum clock\n" : "DREF clock\n"));
-	printk(BIOS_DEBUG,
-	       edid.mode.lvds_dual_channel ? "Dual channel\n" : "Single channel\n");
-	printk(BIOS_DEBUG, "Polarities %d, %d\n",
-	       hpolarity, vpolarity);
-	printk(BIOS_DEBUG, "Data M1=%d, N1=%d\n",
-	       data_m1, data_n1);
-	printk(BIOS_DEBUG, "Link frequency %d kHz\n",
-	       link_frequency);
-	printk(BIOS_DEBUG, "Link M1=%d, N1=%d\n",
-	       link_m1, link_n1);
-	printk(BIOS_DEBUG, "Pixel N=%d, M1=%d, M2=%d, P1=%d\n",
-	       pixel_n, pixel_m1, pixel_m2, pixel_p1);
-	printk(BIOS_DEBUG, "Pixel clock %d kHz\n",
-	       120000 * (5 * pixel_m1 + pixel_m2) / pixel_n
-	       / (pixel_p1 * 7));
-
-	write32(mmio + PCH_LVDS,
-		(hpolarity << 20) | (vpolarity << 21)
-		| (edid.mode.lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
-		   | LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
-		| LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL
-		| LVDS_DETECTED);
-	write32(mmio + BLC_PWM_CPU_CTL2, (1 << 31));
-	write32(mmio + PCH_DREF_CONTROL, (info->use_spread_spectrum_clock
-					  ? 0x1002 : 0x400));
-	mdelay(1);
-	write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS
-		| (read32(mmio + PCH_PP_CONTROL) & ~PANEL_UNLOCK_MASK));
-	write32(mmio + _PCH_FP0(0),
-		((pixel_n - 2) << 16)
-		| ((pixel_m1 - 2) << 8) | pixel_m2);
-	write32(mmio + _PCH_DPLL(0),
-		DPLL_VCO_ENABLE | DPLLB_MODE_LVDS
-		| (edid.mode.lvds_dual_channel ? DPLLB_LVDS_P2_CLOCK_DIV_7
-		   : DPLLB_LVDS_P2_CLOCK_DIV_14)
-		| (0x10000 << (pixel_p1 - 1))
-		| ((info->use_spread_spectrum_clock ? 3 : 0) << 13)
-		| (0x1 << (pixel_p1 - 1)));
-
-	mdelay(1);
-	write32(mmio + 0xc7000, 0x8);
-
-	mdelay(1);
-	write32(mmio + _PCH_DPLL(0),
-		DPLL_VCO_ENABLE | DPLLB_MODE_LVDS
-		| (edid.mode.lvds_dual_channel ? DPLLB_LVDS_P2_CLOCK_DIV_7
-		   : DPLLB_LVDS_P2_CLOCK_DIV_14)
-		| (0x10000 << (pixel_p1 - 1))
-		| ((info->use_spread_spectrum_clock ? 3 : 0) << 13)
-		| (0x1 << (pixel_p1 - 1)));
-	/* Re-lock the registers.  */
-	write32(mmio + PCH_PP_CONTROL,
-		(read32(mmio + PCH_PP_CONTROL) & ~PANEL_UNLOCK_MASK));
-
-	write32(mmio + PCH_LVDS,
-		(hpolarity << 20) | (vpolarity << 21)
-		| (edid.mode.lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
-		   | LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
-		| LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL
-		| LVDS_DETECTED);
-
-	write32(mmio + HTOTAL(0),
-		((hactive + right_border + hblank - 1) << 16)
-		| (hactive - 1));
-	write32(mmio + HBLANK(0),
-		((hactive + right_border + hblank - 1) << 16)
-		| (hactive + right_border - 1));
-	write32(mmio + HSYNC(0),
-		((hactive + right_border + hfront_porch + hsync - 1) << 16)
-		| (hactive + right_border + hfront_porch - 1));
-
-	write32(mmio + VTOTAL(0), ((vactive + bottom_border + vblank - 1) << 16)
-		| (vactive - 1));
-	write32(mmio + VBLANK(0), ((vactive + bottom_border + vblank - 1) << 16)
-		| (vactive + bottom_border - 1));
-	write32(mmio + VSYNC(0),
-		(vactive + bottom_border + vfront_porch + vsync - 1)
-		| (vactive + bottom_border + vfront_porch - 1));
-
-	write32(mmio + PIPECONF(0), PIPECONF_DISABLE);
-
-	write32(mmio + 0xf0008, 0);
-
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
-		write32(mmio + PIPESRC(0), ((hactive - 1) << 16) | (vactive - 1));
-		write32(mmio + PF_CTL(0),0);
-		write32(mmio + PF_WIN_SZ(0), 0);
-		write32(mmio + PF_WIN_POS(0), 0);
-	} else {
-		write32(mmio + PIPESRC(0), (719 << 16) | 399);
-		write32(mmio + PF_WIN_POS(0), 0);
-		write32(mmio + PF_CTL(0),PF_ENABLE | PF_FILTER_MED_3x3);
-		write32(mmio + PF_WIN_SZ(0), vactive | (hactive << 16));
-	}
-
-	mdelay(1);
-
-	write32(mmio + PIPE_DATA_M1(0), 0x7e000000 | data_m1);
-	write32(mmio + PIPE_DATA_N1(0), data_n1);
-	write32(mmio + PIPE_LINK_M1(0), link_m1);
-	write32(mmio + PIPE_LINK_N1(0), link_n1);
-
-	link_train(mmio);
-
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER))
-		write32(mmio+CPU_VGACNTRL,0x298e | VGA_DISP_DISABLE);
-	else
-		write32(mmio+CPU_VGACNTRL,0x298e);
-
-	write32(mmio+0x60100,0x44300);
-	write32(mmio+0x60100,0x80044f00);
-
-	mdelay(1);
-	read32(mmio + 0x000f0014); // = 0x00000600
-
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
-		write32(mmio + DSPCNTR(0), DISPLAY_PLANE_ENABLE
-					| DISPPLANE_BGRX888);
-		mdelay(1);
-	}
-
-	write32(mmio + TRANS_HTOTAL(0),
-		((hactive + right_border + hblank - 1) << 16)
-		| (hactive - 1));
-	write32(mmio + TRANS_HBLANK(0),
-		((hactive + right_border + hblank - 1) << 16)
-		| (hactive + right_border - 1));
-	write32(mmio + TRANS_HSYNC(0),
-		((hactive + right_border + hfront_porch + hsync - 1) << 16)
-		| (hactive + right_border + hfront_porch - 1));
-
-	write32(mmio + TRANS_VTOTAL(0),
-		((vactive + bottom_border + vblank - 1) << 16)
-		| (vactive - 1));
-	write32(mmio + TRANS_VBLANK(0),
-		((vactive + bottom_border + vblank - 1) << 16)
-		| (vactive + bottom_border - 1));
-	write32(mmio + TRANS_VSYNC(0),
-		(vactive + bottom_border + vfront_porch + vsync - 1)
-		| (vactive + bottom_border + vfront_porch - 1));
-
-	link_normal_operation(mmio);
-
-	write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS | PANEL_POWER_OFF);
-
-	mdelay(1);
-
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER))
-		write32(mmio + PCH_TRANSCONF(0), TRANS_ENABLE | TRANS_6BPC
-						| TRANS_STATE_MASK);
-	else
-		write32(mmio + PCH_TRANSCONF(0), TRANS_ENABLE | TRANS_6BPC);
-
-	write32(mmio + PCH_LVDS,
-		LVDS_PORT_ENABLE
-		| (hpolarity << 20) | (vpolarity << 21)
-		| (edid.mode.lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
-		   | LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
-		| LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL
-		| LVDS_DETECTED);
-
-	write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS | PANEL_POWER_OFF);
-	write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS | PANEL_POWER_RESET);
-	mdelay(1);
-	write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS
-		| PANEL_POWER_ON | PANEL_POWER_RESET);
-
-	printk (BIOS_DEBUG, "waiting for panel powerup\n");
-	while (1)
-	{
-		u32 reg32;
-		reg32 = read32(mmio + PCH_PP_STATUS);
-		if (((reg32 >> 28) & 3) == 0)
-			break;
-	}
-	printk (BIOS_DEBUG, "panel powered up\n");
-
-	write32(mmio + PCH_PP_CONTROL, PANEL_POWER_ON | PANEL_POWER_RESET);
-
-	/* Enable screen memory.  */
-	vga_sr_write(1, vga_sr_read(1) & ~0x20);
-
-	/* Clear interrupts. */
-	write32(mmio + DEIIR, 0xffffffff);
-	write32(mmio + SDEIIR, 0xffffffff);
-
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
-		memset ((void *) lfb, 0, edid.x_resolution
-					* edid.y_resolution * 4);
-		set_vbe_mode_info_valid(&edid, lfb);
-	}
-
-	/* Doesn't change any hw behaviour but vga oprom expects it there. */
-	write32(mmio + 0x0004f040, 0x01000008);
-	write32(mmio + 0x0004f044, 0x00001800);
-	write32(mmio + 0x0004f04c, 0x7f7f0000);
-	write32(mmio + 0x0004f054, 0x0000422d);
-	write32(mmio + 0x0004f05c, 0x00000008);
-
-	/* Linux relies on VBT for panel info.  */
-	generate_fake_intel_oprom(info, pcidev_on_root(2, 0),
-				  "$VBT SNB/IVB-MOBILE");
-
-	return 1;
-}
diff --git a/src/northbridge/intel/sandybridge/gma_sandybridge_lvds.c b/src/northbridge/intel/sandybridge/gma_sandybridge_lvds.c
deleted file mode 100644
index 977cca8c61..0000000000
--- a/src/northbridge/intel/sandybridge/gma_sandybridge_lvds.c
+++ /dev/null
@@ -1,476 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013, 2014 Vladimir Serbinenko
- *
- * 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
- * the Free Software Foundation; version 2 or (at your option)
- *  any later version of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <arch/io.h>
-#include <console/console.h>
-#include <delay.h>
-#include <device/device.h>
-#include <string.h>
-
-#include <drivers/intel/gma/edid.h>
-#include <drivers/intel/gma/i915.h>
-#include "gma.h"
-#include "chip.h"
-#include "sandybridge.h"
-#include <pc80/vga.h>
-#include <pc80/vga_io.h>
-#include <device/pci_def.h>
-#include <device/pci_rom.h>
-
-static void train_link(u8 *mmio)
-{
-	/* Clear interrupts. */
-	write32(mmio + DEIIR, 0xffffffff);
-
-	write32(mmio + 0xf000c, 0x2040);
-	write32(mmio + 0xf000c, 0x2050);
-	write32(mmio + 0x60100, 0x44000);
-	write32(mmio + 0xf000c, 0x22050);
-
-	mdelay(1);
-
-	write32(mmio + 0x000f0018, 0x0000008ff);
-	write32(mmio + 0x000f1018, 0x0000008ff);
-
-	write32(mmio + 0x000f000c, 0x001a2050);
-	write32(mmio + 0x00060100, 0x001c4000);
-
-	write32(mmio + 0x00060100, 0x801c4000);
-	write32(mmio + 0x000f000c, 0x801a2050);
-
-	write32(mmio + 0x00060100, 0x801c4000);
-	write32(mmio + 0x000f000c, 0x801a2050);
-	mdelay(1);
-
-	read32(mmio + 0x000f0014); // = 0x00000100
-	write32(mmio + 0x000f0014, 0x00000100);
-	write32(mmio + 0x00060100, 0x901c4000);
-	write32(mmio + 0x000f000c, 0x801a2150);
-	mdelay(1);
-	read32(mmio + 0x000f0014); // = 0x00000600
-}
-
-static void power_port(u8 *mmio)
-{
-	read32(mmio + 0x000e1100); // = 0x00000000
-	write32(mmio + 0x000e1100, 0x00000000);
-	write32(mmio + 0x000e1100, 0x00010000);
-	read32(mmio + 0x000e1100); // = 0x00010000
-	read32(mmio + 0x000e1100); // = 0x00010000
-	read32(mmio + 0x000e1100); // = 0x00000000
-	write32(mmio + 0x000e1100, 0x00000000);
-	read32(mmio + 0x000e1100); // = 0x00000000
-	read32(mmio + 0x000e4200); // = 0x0000001c
-	write32(mmio + 0x000e4210, 0x8004003e);
-	write32(mmio + 0x000e4214, 0x80060002);
-	write32(mmio + 0x000e4218, 0x01000000);
-	read32(mmio + 0x000e4210); // = 0x5144003e
-	write32(mmio + 0x000e4210, 0x5344003e);
-	read32(mmio + 0x000e4210); // = 0x0144003e
-	write32(mmio + 0x000e4210, 0x8074003e);
-	read32(mmio + 0x000e4210); // = 0x5144003e
-	read32(mmio + 0x000e4210); // = 0x5144003e
-	write32(mmio + 0x000e4210, 0x5344003e);
-	read32(mmio + 0x000e4210); // = 0x0144003e
-	write32(mmio + 0x000e4210, 0x8074003e);
-	read32(mmio + 0x000e4210); // = 0x5144003e
-	read32(mmio + 0x000e4210); // = 0x5144003e
-	write32(mmio + 0x000e4210, 0x5344003e);
-	read32(mmio + 0x000e4210); // = 0x0144003e
-	write32(mmio + 0x000e4210, 0x8074003e);
-	read32(mmio + 0x000e4210); // = 0x5144003e
-	read32(mmio + 0x000e4210); // = 0x5144003e
-	write32(mmio + 0x000e4210, 0x5344003e);
-	write32(mmio + 0x000c4030, 0x00001000);
-	read32(mmio + 0x000c4000); // = 0x00000000
-	write32(mmio + 0x000c4030, 0x00001000);
-	read32(mmio + 0x000e1150); // = 0x0000001c
-	write32(mmio + 0x000e1150, 0x0000089c);
-	write32(mmio + 0x000fcc00, 0x01986f00);
-	write32(mmio + 0x000fcc0c, 0x01986f00);
-	write32(mmio + 0x000fcc18, 0x01986f00);
-	write32(mmio + 0x000fcc24, 0x01986f00);
-	read32(mmio + 0x000c4000); // = 0x00000000
-	read32(mmio + 0x000e1180); // = 0x40000002
-}
-
-int i915lightup_sandy(const struct i915_gpu_controller_info *info,
-		u32 physbase, u16 piobase, u8 *mmio, u32 lfb)
-{
-	int i;
-	u8 edid_data[128];
-	struct edid edid;
-	struct edid_mode *mode;
-	u32 hactive, vactive, right_border, bottom_border;
-	int hpolarity, vpolarity;
-	u32 vsync, hsync, vblank, hblank, hfront_porch, vfront_porch;
-	u32 candp1, candn;
-	u32 best_delta = 0xffffffff;
-	u32 target_frequency;
-	u32 pixel_p1 = 1;
-	u32 pixel_n = 1;
-	u32 pixel_m1 = 1;
-	u32 pixel_m2 = 1;
-	u32 link_frequency = info->link_frequency_270_mhz ? 270000 : 162000;
-	u32 data_m1;
-	u32 data_n1 = 0x00800000;
-	u32 link_m1;
-	u32 link_n1 = 0x00080000;
-
-	if (!IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT))
-		return 0;
-
-	if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_IVB) {
-		return i915lightup_ivy(info, physbase, piobase, mmio, lfb);
-	}
-
-	write32(mmio + 0x00070080, 0x00000000);
-	write32(mmio + DSPCNTR(0), 0x00000000);
-	write32(mmio + 0x00071180, 0x00000000);
-	write32(mmio + CPU_VGACNTRL, 0x0000298e | VGA_DISP_DISABLE);
-	write32(mmio + 0x0007019c, 0x00000000);
-	write32(mmio + 0x0007119c, 0x00000000);
-	write32(mmio + 0x000ec008, 0x2c010000);
-	write32(mmio + 0x000ec020, 0x2c010000);
-	write32(mmio + 0x000ec038, 0x2c010000);
-	write32(mmio + 0x000ec050, 0x2c010000);
-	write32(mmio + 0x000ec408, 0x2c010000);
-	write32(mmio + 0x000ec420, 0x2c010000);
-	write32(mmio + 0x000ec438, 0x2c010000);
-	write32(mmio + 0x000ec450, 0x2c010000);
-	vga_gr_write(0x18, 0);
-	write32(mmio + 0x00042004, 0x02000000);
-	write32(mmio + 0x000fd034, 0x8421ffe0);
-
-	/* Setup GTT.  */
-	for (i = 0; i < 0x2000; i++)
-	{
-		outl((i << 2) | 1, piobase);
-		outl(physbase + (i << 12) + 1, piobase + 4);
-	}
-
-	vga_misc_write(0x67);
-
-	const u8 cr[] = { 0x5f, 0x4f, 0x50, 0x82, 0x55, 0x81, 0xbf, 0x1f,
-		    0x00, 0x4f, 0x0d, 0x0e, 0x00, 0x00, 0x00, 0x00,
-		    0x9c, 0x8e, 0x8f, 0x28, 0x1f, 0x96, 0xb9, 0xa3,
-		    0xff
-	};
-	vga_cr_write(0x11, 0);
-
-	for (i = 0; i <= 0x18; i++)
-		vga_cr_write(i, cr[i]);
-
-	power_port(mmio);
-
-	intel_gmbus_read_edid(mmio + PCH_GMBUS0, GMBUS_PORT_PANEL, 0x50,
-			edid_data, sizeof(edid_data));
-	decode_edid(edid_data, sizeof(edid_data), &edid);
-	mode = &edid.mode;
-
-	/* Disable screen memory to prevent garbage from appearing.  */
-	vga_sr_write(1, vga_sr_read(1) | 0x20);
-
-	hactive = edid.x_resolution;
-	vactive = edid.y_resolution;
-	right_border = mode->hborder;
-	bottom_border = mode->vborder;
-	hpolarity = (mode->phsync == '-');
-	vpolarity = (mode->pvsync == '-');
-	vsync = mode->vspw;
-	hsync = mode->hspw;
-	vblank = mode->vbl;
-	hblank = mode->hbl;
-	hfront_porch = mode->hso;
-	vfront_porch = mode->vso;
-
-	target_frequency = mode->lvds_dual_channel ? mode->pixel_clock
-		: (2 * mode->pixel_clock);
-
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
-		vga_sr_write(1, 1);
-		vga_sr_write(0x2, 0xf);
-		vga_sr_write(0x3, 0x0);
-		vga_sr_write(0x4, 0xe);
-		vga_gr_write(0, 0x0);
-		vga_gr_write(1, 0x0);
-		vga_gr_write(2, 0x0);
-		vga_gr_write(3, 0x0);
-		vga_gr_write(4, 0x0);
-		vga_gr_write(5, 0x0);
-		vga_gr_write(6, 0x5);
-		vga_gr_write(7, 0xf);
-		vga_gr_write(0x10, 0x1);
-		vga_gr_write(0x11, 0);
-
-		edid.bytes_per_line = (edid.bytes_per_line + 63) & ~63;
-
-		write32(mmio + DSPCNTR(0), DISPPLANE_BGRX888);
-		write32(mmio + DSPADDR(0), 0);
-		write32(mmio + DSPSTRIDE(0), edid.bytes_per_line);
-		write32(mmio + DSPSURF(0), 0);
-		for (i = 0; i < 0x100; i++)
-			write32(mmio + LGC_PALETTE(0) + 4 * i, i * 0x010101);
-	} else {
-		vga_textmode_init();
-	}
-
-	/* Find suitable divisors.  */
-	for (candp1 = 1; candp1 <= 8; candp1++) {
-		for (candn = 5; candn <= 10; candn++) {
-			u32 cur_frequency;
-			u32 m; /* 77 - 131.  */
-			u32 denom; /* 35 - 560.  */
-			u32 current_delta;
-
-			denom = candn * candp1 * 7;
-			/* Doesn't overflow for up to
-			   5000000 kHz = 5 GHz.  */
-			m = (target_frequency * denom + 60000) / 120000;
-
-			if (m < 77 || m > 131)
-				continue;
-
-			cur_frequency = (120000 * m) / denom;
-			if (target_frequency > cur_frequency)
-				current_delta = target_frequency - cur_frequency;
-			else
-				current_delta = cur_frequency - target_frequency;
-
-
-			if (best_delta > current_delta) {
-				best_delta = current_delta;
-				pixel_n = candn;
-				pixel_p1 = candp1;
-				pixel_m2 = ((m + 3) % 5) + 7;
-				pixel_m1 = (m - pixel_m2) / 5;
-			}
-		}
-	}
-
-	if (best_delta == 0xffffffff) {
-		printk (BIOS_ERR, "Couldn't find GFX clock divisors\n");
-		return 0;
-	}
-
-	link_m1 = ((uint64_t)link_n1 * mode->pixel_clock) / link_frequency;
-	data_m1 = ((uint64_t)data_n1 * 18 * mode->pixel_clock)
-		/ (link_frequency * 8 * 4);
-
-	printk(BIOS_INFO, "bringing up panel at resolution %d x %d\n",
-	       hactive, vactive);
-	printk(BIOS_DEBUG, "Borders %d x %d\n",
-	       right_border, bottom_border);
-	printk(BIOS_DEBUG, "Blank %d x %d\n",
-	       hblank, vblank);
-	printk(BIOS_DEBUG, "Sync %d x %d\n",
-	       hsync, vsync);
-	printk(BIOS_DEBUG, "Front porch %d x %d\n",
-	       hfront_porch, vfront_porch);
-	printk(BIOS_DEBUG, (info->use_spread_spectrum_clock
-			    ? "Spread spectrum clock\n" : "DREF clock\n"));
-	printk(BIOS_DEBUG,
-	       mode->lvds_dual_channel ? "Dual channel\n" : "Single channel\n");
-	printk(BIOS_DEBUG, "Polarities %d, %d\n",
-	       hpolarity, vpolarity);
-	printk(BIOS_DEBUG, "Data M1=%d, N1=%d\n",
-	       data_m1, data_n1);
-	printk(BIOS_DEBUG, "Link frequency %d kHz\n",
-	       link_frequency);
-	printk(BIOS_DEBUG, "Link M1=%d, N1=%d\n",
-	       link_m1, link_n1);
-	printk(BIOS_DEBUG, "Pixel N=%d, M1=%d, M2=%d, P1=%d\n",
-	       pixel_n, pixel_m1, pixel_m2, pixel_p1);
-	printk(BIOS_DEBUG, "Pixel clock %d kHz\n",
-	       120000 * (5 * pixel_m1 + pixel_m2) / pixel_n
-	       / (pixel_p1 * 7));
-
-	write32(mmio + PCH_LVDS,
-		(hpolarity << 20) | (vpolarity << 21)
-		| (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
-		   | LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
-		| LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL
-		| LVDS_DETECTED);
-	write32(mmio + BLC_PWM_CPU_CTL2, (1 << 31));
-	write32(mmio + PCH_DREF_CONTROL, (info->use_spread_spectrum_clock
-					  ? 0x1002 : 0x400));
-	mdelay(1);
-	write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS
-		| (read32(mmio + PCH_PP_CONTROL) & ~PANEL_UNLOCK_MASK));
-	write32(mmio + _PCH_FP0(0),
-		((pixel_n - 2) << 16)
-		| ((pixel_m1 - 2) << 8) | pixel_m2);
-	write32(mmio + PCH_DPLL_SEL, 8);
-	write32(mmio + _PCH_DPLL(0),
-		DPLL_VCO_ENABLE | DPLLB_MODE_LVDS
-		| (mode->lvds_dual_channel ? DPLLB_LVDS_P2_CLOCK_DIV_7
-		   : DPLLB_LVDS_P2_CLOCK_DIV_14)
-		| (0x10000 << (pixel_p1 - 1))
-		| ((info->use_spread_spectrum_clock ? 3 : 0) << 13)
-		| (0x1 << (pixel_p1 - 1)));
-	mdelay(1);
-	write32(mmio + _PCH_DPLL(0),
-		DPLL_VCO_ENABLE | DPLLB_MODE_LVDS
-		| (mode->lvds_dual_channel ? DPLLB_LVDS_P2_CLOCK_DIV_7
-		   : DPLLB_LVDS_P2_CLOCK_DIV_14)
-		| (0x10000 << (pixel_p1 - 1))
-		| ((info->use_spread_spectrum_clock ? 3 : 0) << 13)
-		| (0x1 << (pixel_p1 - 1)));
-	/* Re-lock the registers.  */
-	write32(mmio + PCH_PP_CONTROL,
-		(read32(mmio + PCH_PP_CONTROL) & ~PANEL_UNLOCK_MASK));
-
-	write32(mmio + PCH_LVDS,
-		(hpolarity << 20) | (vpolarity << 21)
-		| (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
-		   | LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
-		| LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL
-		| LVDS_DETECTED);
-
-	write32(mmio + HTOTAL(0),
-		((hactive + right_border + hblank - 1) << 16)
-		| (hactive - 1));
-	write32(mmio + HBLANK(0),
-		((hactive + right_border + hblank - 1) << 16)
-		| (hactive + right_border - 1));
-	write32(mmio + HSYNC(0),
-		((hactive + right_border + hfront_porch + hsync - 1) << 16)
-		| (hactive + right_border + hfront_porch - 1));
-
-	write32(mmio + VTOTAL(0), ((vactive + bottom_border + vblank - 1) << 16)
-		| (vactive - 1));
-	write32(mmio + VBLANK(0), ((vactive + bottom_border + vblank - 1) << 16)
-		| (vactive + bottom_border - 1));
-	write32(mmio + VSYNC(0),
-		(vactive + bottom_border + vfront_porch + vsync - 1)
-		| (vactive + bottom_border + vfront_porch - 1));
-
-	write32(mmio + PIPECONF(0), PIPECONF_DISABLE);
-
-	write32(mmio + PF_WIN_POS(0), 0);
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
-		write32(mmio + PIPESRC(0), ((hactive - 1) << 16) | (vactive - 1));
-		write32(mmio + PF_CTL(0),0);
-		write32(mmio + PF_WIN_SZ(0), 0);
-	} else {
-		write32(mmio + PIPESRC(0), (639 << 16) | 399);
-		write32(mmio + PF_CTL(0),PF_ENABLE | PF_FILTER_MED_3x3);
-		write32(mmio + PF_WIN_SZ(0), vactive | (hactive << 16));
-	}
-
-	mdelay(1);
-
-	write32(mmio + PIPE_DATA_M1(0), 0x7e000000 | data_m1);
-	write32(mmio + PIPE_DATA_N1(0), data_n1);
-	write32(mmio + PIPE_LINK_M1(0), link_m1);
-	write32(mmio + PIPE_LINK_N1(0), link_n1);
-
-	write32(mmio + 0x000f000c, 0x00002040);
-	mdelay(1);
-	write32(mmio + 0x000f000c, 0x00002050);
-	write32(mmio + 0x00060100, 0x00044000);
-	mdelay(1);
-	write32(mmio + PIPECONF(0), PIPECONF_BPP_6);
-	write32(mmio + 0x000f000c, 0x00022050);
-	write32(mmio + PIPECONF(0), PIPECONF_BPP_6 | PIPECONF_DITHER_EN);
-	write32(mmio + PIPECONF(0), PIPECONF_ENABLE | PIPECONF_BPP_6 | PIPECONF_DITHER_EN);
-
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER))
-		write32(mmio + CPU_VGACNTRL, 0x20298e | VGA_DISP_DISABLE);
-	else
-		write32(mmio + CPU_VGACNTRL, 0x20298e);
-
-	train_link(mmio);
-
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
-		write32(mmio + DSPCNTR(0), DISPLAY_PLANE_ENABLE | DISPPLANE_BGRX888);
-		mdelay(1);
-	}
-
-	write32(mmio + TRANS_HTOTAL(0),
-		((hactive + right_border + hblank - 1) << 16)
-		| (hactive - 1));
-	write32(mmio + TRANS_HBLANK(0),
-		((hactive + right_border + hblank - 1) << 16)
-		| (hactive + right_border - 1));
-	write32(mmio + TRANS_HSYNC(0),
-		((hactive + right_border + hfront_porch + hsync - 1) << 16)
-		| (hactive + right_border + hfront_porch - 1));
-
-	write32(mmio + TRANS_VTOTAL(0),
-		((vactive + bottom_border + vblank - 1) << 16)
-		| (vactive - 1));
-	write32(mmio + TRANS_VBLANK(0),
-		((vactive + bottom_border + vblank - 1) << 16)
-		| (vactive + bottom_border - 1));
-	write32(mmio + TRANS_VSYNC(0),
-		(vactive + bottom_border + vfront_porch + vsync - 1)
-		| (vactive + bottom_border + vfront_porch - 1));
-
-	write32(mmio + 0x00060100, 0xb01c4000);
-	write32(mmio + 0x000f000c, 0x801a2350);
-	mdelay(1);
-
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER))
-		write32(mmio + TRANSCONF(0), TRANS_ENABLE | TRANS_6BPC
-					   | TRANS_STATE_MASK);
-	else
-		write32(mmio + TRANSCONF(0), TRANS_ENABLE | TRANS_6BPC);
-
-	write32(mmio + PCH_LVDS,
-		LVDS_PORT_ENABLE
-		| (hpolarity << 20) | (vpolarity << 21)
-		| (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL
-		   | LVDS_CLOCK_BOTH_POWERUP_ALL : 0)
-		| LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL
-		| LVDS_DETECTED);
-
-	write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS | PANEL_POWER_OFF);
-	write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS | PANEL_POWER_RESET);
-	mdelay(1);
-	write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS
-		| PANEL_POWER_ON | PANEL_POWER_RESET);
-
-	printk (BIOS_DEBUG, "waiting for panel powerup\n");
-	while (1) {
-		u32 reg32;
-		reg32 = read32(mmio + PCH_PP_STATUS);
-		if (((reg32 >> 28) & 3) == 0)
-			break;
-	}
-	printk (BIOS_DEBUG, "panel powered up\n");
-
-	write32(mmio + PCH_PP_CONTROL, PANEL_POWER_ON | PANEL_POWER_RESET);
-
-	/* Enable screen memory.  */
-	vga_sr_write(1, vga_sr_read(1) & ~0x20);
-
-	/* Clear interrupts. */
-	write32(mmio + DEIIR, 0xffffffff);
-	write32(mmio + SDEIIR, 0xffffffff);
-
-	if (IS_ENABLED(CONFIG_LINEAR_FRAMEBUFFER)) {
-		memset ((void *) lfb, 0, edid.x_resolution
-					* edid.y_resolution * 4);
-		set_vbe_mode_info_valid(&edid, lfb);
-	}
-
-	/* Linux relies on VBT for panel info.  */
-	generate_fake_intel_oprom(info, pcidev_on_root(2, 0),
-				  "$VBT SNB/IVB-MOBILE");
-
-	return 1;
-}