aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/ramips/patches-3.18/0103-MIPS-OWRTDTB.patch
blob: b90138317b2dbac7e127ce2566aee290e6aebceb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
From c174d2250e402399ad7dbdd57d51883d8804bba0 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 15 Jul 2013 00:40:37 +0200
Subject: [PATCH 31/33] owrt: MIPS: add OWRTDTB secion

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 arch/mips/kernel/head.S   |    3 +++
 arch/mips/ralink/Makefile |    2 +-
 arch/mips/ralink/of.c     |    4 +++-
 3 files changed, 7 insertions(+), 2 deletions(-)

--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -86,6 +86,9 @@ EXPORT(__image_cmdline)
 	.fill	0x400
 #endif /* CONFIG_IMAGE_CMDLINE_HACK */
 
+	.ascii  "OWRTDTB:"
+	EXPORT(__image_dtb)
+	.fill   0x4000
 	__REF
 
 NESTED(kernel_entry, 16, sp)			# kernel entry point
--- a/arch/mips/ralink/of.c
+++ b/arch/mips/ralink/of.c
@@ -66,6 +66,8 @@ static int __init early_init_dt_find_mem
 	return 0;
 }
 
+extern struct boot_param_header __image_dtb;
+
 void __init plat_mem_setup(void)
 {
 	set_io_port_base(KSEG1);
@@ -74,7 +76,7 @@ void __init plat_mem_setup(void)
 	 * Load the builtin devicetree. This causes the chosen node to be
 	 * parsed resulting in our memory appearing
 	 */
-	__dt_setup_arch(__dtb_start);
+	__dt_setup_arch(&__image_dtb);
 
 	strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
 
12 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234
/*
 * This file is part of the flashrom project.
 *
 * Copyright (C) 2005-2007 coresystems GmbH <stepan@coresystems.de>
 * Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de>
 * Copyright (C) 2007-2009 Luc Verhaegen <libv@skynet.be>
 * Copyright (C) 2007 Carl-Daniel Hailfinger
 *
 * 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 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

/*
 * Contains the board specific flash enables.
 */

#include <string.h>
#include <fcntl.h>
#include "flash.h"

/*
 * Helper functions for many Winbond Super I/Os of the W836xx range.
 */
/* Enter extended functions */
void w836xx_ext_enter(uint16_t port)
{
	OUTB(0x87, port);
	OUTB(0x87, port);
}

/* Leave extended functions */
void w836xx_ext_leave(uint16_t port)
{
	OUTB(0xAA, port);
}

/* Generic Super I/O helper functions */
uint8_t sio_read(uint16_t port, uint8_t reg)
{
	OUTB(reg, port);
	return INB(port + 1);
}

void sio_write(uint16_t port, uint8_t reg, uint8_t data)
{
	OUTB(reg, port);
	OUTB(data, port + 1);
}

void sio_mask(uint16_t port, uint8_t reg, uint8_t data, uint8_t mask)
{
	uint8_t tmp;

	OUTB(reg, port);
	tmp = INB(port + 1) & ~mask;
	OUTB(tmp | (data & mask), port + 1);
}

/**
 * Winbond W83627HF: Raise GPIO24.
 *
 * Suited for:
 *  - Agami Aruma
 *  - IWILL DK8-HTX
 */
static int w83627hf_gpio24_raise(uint16_t port, const char *name)
{
	w836xx_ext_enter(port);

	/* Is this the W83627HF? */
	if (sio_read(port, 0x20) != 0x52) {	/* Super I/O device ID reg. */
		fprintf(stderr, "\nERROR: %s: W83627HF: Wrong ID: 0x%02X.\n",
			name, sio_read(port, 0x20));
		w836xx_ext_leave(port);
		return -1;
	}

	/* PIN89S: WDTO/GP24 multiplex -> GPIO24 */
	sio_mask(port, 0x2B, 0x10, 0x10);

	/* Select logical device 8: GPIO port 2 */
	sio_write(port, 0x07, 0x08);

	sio_mask(port, 0x30, 0x01, 0x01);	/* Activate logical device. */
	sio_mask(port, 0xF0, 0x00, 0x10);	/* GPIO24 -> output */
	sio_mask(port, 0xF2, 0x00, 0x10);	/* Clear GPIO24 inversion */
	sio_mask(port, 0xF1, 0x10, 0x10);	/* Raise GPIO24 */

	w836xx_ext_leave(port);

	return 0;
}

static int w83627hf_gpio24_raise_2e(const char *name)
{
	return w83627hf_gpio24_raise(0x2e, name);
}

/**
 * Winbond W83627THF: GPIO 4, bit 4
 *
 * Suited for:
 *  - MSI K8T Neo2-F
 *  - MSI K8N-NEO3
 */
static int w83627thf_gpio4_4_raise(uint16_t port, const char *name)
{
	w836xx_ext_enter(port);

	/* Is this the W83627THF? */
	if (sio_read(port, 0x20) != 0x82) {	/* Super I/O device ID reg. */
		fprintf(stderr, "\nERROR: %s: W83627THF: Wrong ID: 0x%02X.\n",
			name, sio_read(port, 0x20));
		w836xx_ext_leave(port);
		return -1;
	}

	/* PINxxxxS: GPIO4/bit 4 multiplex -> GPIOXXX */

	sio_write(port, 0x07, 0x09);      /* Select LDN 9: GPIO port 4 */
	sio_mask(port, 0x30, 0x02, 0x02); /* Activate logical device. */
	sio_mask(port, 0xF4, 0x00, 0x10); /* GPIO4 bit 4 -> output */
	sio_mask(port, 0xF6, 0x00, 0x10); /* Clear GPIO4 bit 4 inversion */
	sio_mask(port, 0xF5, 0x10, 0x10); /* Raise GPIO4 bit 4 */

	w836xx_ext_leave(port);

	return 0;
}

static int w83627thf_gpio4_4_raise_2e(const char *name)
{
	return w83627thf_gpio4_4_raise(0x2e, name);
}

static int w83627thf_gpio4_4_raise_4e(const char *name)
{
	return w83627thf_gpio4_4_raise(0x4e, name);
}

/**
 * w83627: Enable MEMW# and set ROM size to max.
 */
static void w836xx_memw_enable(uint16_t port)
{
	w836xx_ext_enter(port);
	if (!(sio_read(port, 0x24) & 0x02)) {	/* Flash ROM enabled? */
		/* Enable MEMW# and set ROM size select to max. (4M). */
		sio_mask(port, 0x24, 0x28, 0x28);
	}
	w836xx_ext_leave(port);
}

/**
 * Common routine for several VT823x based boards.
 */
static void vt823x_set_all_writes_to_lpc(struct pci_dev *dev)
{
	uint8_t val;

	/* All memory cycles, not just ROM ones, go to LPC. */
	val = pci_read_byte(dev, 0x59);
	val &= ~0x80;
	pci_write_byte(dev, 0x59, val);
}

/**
 * VT823x: Set one of the GPIO pins.
 */
static void vt823x_gpio_set(struct pci_dev *dev, uint8_t gpio, int raise)
{
	uint16_t base;
	uint8_t val, bit;

	if ((gpio >= 12) && (gpio <= 15)) {
		/* GPIO12-15 -> output */
		val = pci_read_byte(dev, 0xE4);
		val |= 0x10;
		pci_write_byte(dev, 0xE4, val);
	} else if (gpio == 9) {
		/* GPIO9 -> Output */
		val = pci_read_byte(dev, 0xE4);
		val |= 0x20;
		pci_write_byte(dev, 0xE4, val);
	} else {
		fprintf(stderr, "\nERROR: "
			"VT823x GPIO%02d is not implemented.\n", gpio);
		return;
	}

	/* Now raise/drop the GPIO line itself. */
	bit = 0x01 << (gpio - 8);

	/* We need the I/O Base Address for this board's flash enable. */
	base = pci_read_word(dev, 0x88) & 0xff80;

	val = INB(base + 0x4D);
	if (raise)
		val |= bit;
	else
		val &= ~bit;
	OUTB(val, base + 0x4D);
}

/**
 * Suited for VIAs EPIA M and MII, and maybe other CLE266 based EPIAs.
 *
 * We don't need to do this when using coreboot, GPIO15 is never lowered there.
 */
static int board_via_epia_m(const char *name)
{
	struct pci_dev *dev;

	dev = pci_dev_find(0x1106, 0x3177);	/* VT8235 ISA bridge */
	if (!dev) {
		fprintf(stderr, "\nERROR: VT8235 ISA bridge not found.\n");
		return -1;
	}

	/* GPIO15 is connected to write protect. */
	vt823x_gpio_set(dev, 15, 1);

	return 0;
}

/**
 * Suited for:
 *   - ASUS A7V8X-MX SE and A7V400-MX: AMD K7 + VIA KM400A + VT8235
 *   - Tyan S2498 (Tomcat K7M): AMD Geode NX + VIA KM400 + VT8237.
 */
static int board_asus_a7v8x_mx(const char *name)
{
	struct pci_dev *dev;

	dev = pci_dev_find(0x1106, 0x3177);	/* VT8235 ISA bridge */
	if (!dev)
		dev = pci_dev_find(0x1106, 0x3227);	/* VT8237 ISA bridge */
	if (!dev) {
		fprintf(stderr, "\nERROR: VT823x ISA bridge not found.\n");
		return -1;
	}

	vt823x_set_all_writes_to_lpc(dev);
	w836xx_memw_enable(0x2E);

	return 0;
}

/**
 * Suited for VIAs EPIA SP and EPIA CN.
 */
static int board_via_epia_sp(const char *name)
{
	struct pci_dev *dev;

	dev = pci_dev_find(0x1106, 0x3227);	/* VT8237R ISA bridge */
	if (!dev) {
		fprintf(stderr, "\nERROR: VT8237R ISA bridge not found.\n");
		return -1;
	}

	vt823x_set_all_writes_to_lpc(dev);

	return 0;
}

/**
 * Suited for VIAs EPIA N & NL.
 */
static int board_via_epia_n(const char *name)
{
	struct pci_dev *dev;

	dev = pci_dev_find(0x1106, 0x3227);	/* VT8237R ISA bridge */
	if (!dev) {
		fprintf(stderr, "\nERROR: VT8237R ISA bridge not found.\n");
		return -1;
	}

	/* All memory cycles, not just ROM ones, go to LPC */
	vt823x_set_all_writes_to_lpc(dev);

	/* GPIO9 -> output */
	vt823x_gpio_set(dev, 9, 1);

	return 0;
}

/**
 * Suited for EPoX EP-8K5A2 and Albatron PM266A Pro.
 */
static int board_epox_ep_8k5a2(const char *name)
{
	struct pci_dev *dev;

	dev = pci_dev_find(0x1106, 0x3177);	/* VT8235 ISA bridge */
	if (!dev) {
		fprintf(stderr, "\nERROR: VT8235 ISA bridge not found.\n");
		return -1;
	}

	w836xx_memw_enable(0x2E);

	return 0;
}

/**
 * Suited for ASUS P5A.
 *
 * This is rather nasty code, but there's no way to do this cleanly.
 * We're basically talking to some unknown device on SMBus, my guess
 * is that it is the Winbond W83781D that lives near the DIP BIOS.
 */
static int board_asus_p5a(const char *name)
{
	uint8_t tmp;
	int i;

#define ASUSP5A_LOOP 5000

	OUTB(0x00, 0xE807);
	OUTB(0xEF, 0xE803);

	OUTB(0xFF, 0xE800);

	for (i = 0; i < ASUSP5A_LOOP; i++) {
		OUTB(0xE1, 0xFF);
		if (INB(0xE800) & 0x04)
			break;
	}

	if (i == ASUSP5A_LOOP) {
		printf("%s: Unable to contact device.\n", name);
		return -1;
	}

	OUTB(0x20, 0xE801);
	OUTB(0x20, 0xE1);

	OUTB(0xFF, 0xE802);

	for (i = 0; i < ASUSP5A_LOOP; i++) {
		tmp = INB(0xE800);
		if (tmp & 0x70)
			break;
	}

	if ((i == ASUSP5A_LOOP) || !(tmp & 0x10)) {
		printf("%s: failed to read device.\n", name);
		return -1;
	}

	tmp = INB(0xE804);
	tmp &= ~0x02;

	OUTB(0x00, 0xE807);
	OUTB(0xEE, 0xE803);

	OUTB(tmp, 0xE804);

	OUTB(0xFF, 0xE800);
	OUTB(0xE1, 0xFF);

	OUTB(0x20, 0xE801);
	OUTB(0x20, 0xE1);

	OUTB(0xFF, 0xE802);

	for (i = 0; i < ASUSP5A_LOOP; i++) {
		tmp = INB(0xE800);
		if (tmp & 0x70)
			break;
	}

	if ((i == ASUSP5A_LOOP) || !(tmp & 0x10)) {
		printf("%s: failed to write to device.\n", name);
		return -1;
	}

	return 0;
}

static int board_ibm_x3455(const char *name)
{
	/* Set GPIO lines in the Broadcom HT-1000 southbridge. */
	/* It's not a Super I/O but it uses the same index/data port method. */
	sio_mask(0xcd6, 0x45, 0x20, 0x20);

	return 0;
}

/**
 * Suited for Shuttle FN25 (SN25P): AMD S939 + Nvidia CK804 (nForce4).
 */
static int board_shuttle_fn25(const char *name)
{
	struct pci_dev *dev;

	dev = pci_dev_find(0x10DE, 0x0050);	/* NVIDIA CK804 ISA Bridge. */
	if (!dev) {
		fprintf(stderr,
			"\nERROR: NVIDIA nForce4 ISA bridge not found.\n");
		return -1;
	}

	/* one of those bits seems to be connected to TBL#, but -ENOINFO. */
	pci_write_byte(dev, 0x92, 0);

	return 0;
}

/**
 * No docs, so we are just guessing that these might be individual gpio lines.
 */
static void nvidia_mcp_gpio_raise(struct pci_dev *dev, uint8_t offset)
{
	uint16_t base;
	uint8_t tmp;

	base = pci_read_long(dev, 0x64) & 0x0000FF00; /* System control area */

	base += 0xC0;

	/* if anyone knows more about nvidia mcps, feel free to explain this */
	tmp = INB(base + offset);
	tmp &= ~0x0F;
	tmp |= 0x05;
	OUTB(tmp, base + offset);
}

/**
 * Suited for the Gigabyte GA-K8N-SLI: CK804 southbridge.
 */
static int board_ga_k8n_sli(const char *name)
{
	struct pci_dev *dev;

	dev = pci_dev_find(0x10DE, 0x0050);	/* NVIDIA CK804 LPC */
	if (!dev) {
		fprintf(stderr, "\nERROR: NVIDIA LPC bridge not found.\n");
		return -1;
	}

	nvidia_mcp_gpio_raise(dev, 0x21);

	return 0;
}

/**
 * Suited for ASUS P5ND2-SLI Deluxe: LGA775 + nForce4 SLI + MCP04.
 */
static int board_asus_p5nd2_sli(const char *name)
{
	struct pci_dev *dev;

	dev = pci_dev_find(0x10DE, 0x0030);	/* NVIDIA nForce4 ISA Bridge */
	if (!dev) {
		fprintf(stderr, "\nERROR: NVIDIA ISA bridge not found.\n");
		return -1;
	}

	nvidia_mcp_gpio_raise(dev, 0x10);

	return 0;
}

/**
 * Suited for EPoX EP-8RDA3+: Socket A + nForce2 Ultra 400 + MCP2.
 */
static int board_epox_ep_8rda3plus(const char *name)
{
	struct pci_dev *dev;

	dev = pci_dev_find(0x10DE, 0x0060);	/* NVIDIA nForce2 ISA Bridge */
	if (!dev) {
		fprintf(stderr, "\nERROR: NVIDIA ISA bridge not found.\n");
		return -1;
	}

	nvidia_mcp_gpio_raise(dev, 0x31);

	return 0;
}

static int board_hp_dl145_g3_enable(const char *name)
{
	/* Set GPIO lines in the Broadcom HT-1000 southbridge. */
	/* GPIO 0 reg from PM regs */
	/* Set GPIO 2 and 5 high, connected to flash WP# and TBL# pins. */
	/* It's not a Super I/O but it uses the same index/data port method. */
	sio_mask(0xcd6, 0x44, 0x24, 0x24);

	return 0;
}

/**
 * Suited for EPoX EP-BX3, and maybe some other Intel 440BX based boards.
 */
static int board_epox_ep_bx3(const char *name)
{
	uint8_t tmp;

	/* Raise GPIO22. */
	tmp = INB(0x4036);
	OUTB(tmp, 0xEB);

	tmp |= 0x40;

	OUTB(tmp, 0x4036);
	OUTB(tmp, 0xEB);

	return 0;
}

/**
 * Suited for Acorp 6A815EPD.
 */
static int board_acorp_6a815epd(const char *name)
{
	struct pci_dev *dev;
	uint16_t port;
	uint8_t val;

	dev = pci_dev_find(0x8086, 0x2440);	/* Intel ICH2 LPC */
	if (!dev) {
		fprintf(stderr, "\nERROR: ICH2 LPC bridge not found.\n");
		return -1;
	}

	/* Use GPIOBASE register to find where the GPIO is mapped. */
	port = (pci_read_word(dev, 0x58) & 0xFFC0) + 0xE;

	val = INB(port);
	val |= 0x80;		/* Top Block Lock -- pin 8 of PLCC32 */
	val |= 0x40;		/* Lower Blocks Lock -- pin 7 of PLCC32 */
	OUTB(val, port);

	return 0;
}

/**
 * Suited for Artec Group DBE61 and DBE62.
 */
static int board_artecgroup_dbe6x(const char *name)
{
#define DBE6x_MSR_DIVIL_BALL_OPTS	0x51400015
#define DBE6x_PRI_BOOT_LOC_SHIFT	(2)
#define DBE6x_BOOT_OP_LATCHED_SHIFT	(8)
#define DBE6x_SEC_BOOT_LOC_SHIFT	(10)
#define DBE6x_PRI_BOOT_LOC		(3 << DBE6x_PRI_BOOT_LOC_SHIFT)
#define DBE6x_BOOT_OP_LATCHED		(3 << DBE6x_BOOT_OP_LATCHED_SHIFT)
#define DBE6x_SEC_BOOT_LOC		(3 << DBE6x_SEC_BOOT_LOC_SHIFT)
#define DBE6x_BOOT_LOC_FLASH		(2)
#define DBE6x_BOOT_LOC_FWHUB		(3)

	msr_t msr;
	unsigned long boot_loc;

	/* Geode only has a single core */
	if (setup_cpu_msr(0))
		return -1;

	msr = rdmsr(DBE6x_MSR_DIVIL_BALL_OPTS);

	if ((msr.lo & (DBE6x_BOOT_OP_LATCHED)) ==
	    (DBE6x_BOOT_LOC_FWHUB << DBE6x_BOOT_OP_LATCHED_SHIFT))
		boot_loc = DBE6x_BOOT_LOC_FWHUB;
	else
		boot_loc = DBE6x_BOOT_LOC_FLASH;

	msr.lo &= ~(DBE6x_PRI_BOOT_LOC | DBE6x_SEC_BOOT_LOC);
	msr.lo |= ((boot_loc << DBE6x_PRI_BOOT_LOC_SHIFT) |
		   (boot_loc << DBE6x_SEC_BOOT_LOC_SHIFT));

	wrmsr(DBE6x_MSR_DIVIL_BALL_OPTS, msr);

	cleanup_cpu_msr();

	return 0;
}

/**
 * Set the specified GPIO on the specified ICHx southbridge to high.
 *
 * @param name The name of this board.
 * @param ich_vendor PCI vendor ID of the specified ICHx southbridge.
 * @param ich_device PCI device ID of the specified ICHx southbridge.
 * @param gpiobase_reg GPIOBASE register offset in the LPC bridge.
 * @param gp_lvl Offset of GP_LVL register in I/O space, relative to GPIOBASE.
 * @param gp_lvl_bitmask GP_LVL bitmask (set GPIO bits to 1, all others to 0).
 * @param gpio_bit The bit (GPIO) which shall be set to high.
 * @return If the write-enable was successful return 0, otherwise return -1.
 */
static int ich_gpio_raise(const char *name, uint16_t ich_vendor,
			  uint16_t ich_device, uint8_t gpiobase_reg,
			  uint8_t gp_lvl, uint32_t gp_lvl_bitmask,
			  unsigned int gpio_bit)
{
	struct pci_dev *dev;
	uint16_t gpiobar;
	uint32_t reg32;

	dev = pci_dev_find(ich_vendor, ich_device);	/* Intel ICHx LPC */
	if (!dev) {
		fprintf(stderr, "\nERROR: ICHx LPC dev %4x:%4x not found.\n",
			ich_vendor, ich_device);
		return -1;
	}

	/* Use GPIOBASE register to find the I/O space for GPIO. */
	gpiobar = pci_read_word(dev, gpiobase_reg) & gp_lvl_bitmask;

	/* Set specified GPIO to high. */
	reg32 = INL(gpiobar + gp_lvl);
	reg32 |= (1 << gpio_bit);
	OUTL(reg32, gpiobar + gp_lvl);

	return 0;
}

/**
 * Suited for ASUS P4B266.
 */
static int ich2_gpio22_raise(const char *name)
{
	return ich_gpio_raise(name, 0x8086, 0x2440, 0x58, 0x0c, 0xffc0, 22);
}

/**
 * Suited for the Dell PowerEdge 1850. All parameters except the last one are
 * documented in the public Intel 82801EB ICH5 / 82801ER ICH5R datasheet. The
 * last parameter (GPIO number) has to be in the range [16,31] according to
 * said Intel datasheet and was found by exhaustive search.
 */
static int ich5_gpio23_raise(const char *name)
{
	return ich_gpio_raise(name, 0x8086, 0x24d0, 0x58, 0x0c, 0xffc0, 23);
}

/**
 * Suited for MSI MS-7046.
 */
static int ich6_gpio19_raise(const char *name)
{
	return ich_gpio_raise(name, 0x8086, 0x2640, 0x48, 0x0c, 0xffc0, 19);
}

static int board_kontron_986lcd_m(const char *name)
{
	struct pci_dev *dev;
	uint16_t gpiobar;
	uint32_t val;

#define ICH7_GPIO_LVL2 0x38

	dev = pci_dev_find(0x8086, 0x27b8);	/* Intel ICH7 LPC */
	if (!dev) {
		// This will never happen on this board
		fprintf(stderr, "\nERROR: ICH7 LPC bridge not found.\n");
		return -1;
	}

	/* Use GPIOBASE register to find where the GPIO is mapped. */
	gpiobar = pci_read_word(dev, 0x48) & 0xfffc;

	val = INL(gpiobar + ICH7_GPIO_LVL2);	/* GP_LVL2 */
	printf_debug("\nGPIOBAR=0x%04x GP_LVL: 0x%08x\n", gpiobar, val);

	/* bit 2 (0x04) = 0 #TBL --> bootblock locking = 1
	 * bit 2 (0x04) = 1 #TBL --> bootblock locking = 0
	 * bit 3 (0x08) = 0 #WP --> block locking = 1
	 * bit 3 (0x08) = 1 #WP --> block locking = 0
	 *
	 * To enable full block locking, you would do:
	 *     val &= ~ ((1 << 2) | (1 << 3));
	 */
	val |= (1 << 2) | (1 << 3);

	OUTL(val, gpiobar + ICH7_GPIO_LVL2);

	return 0;
}

/**
 * Suited for:
 *   - Biostar P4M80-M4: VIA P4M800 + VT8237 + IT8705AF
 *   - GIGABYTE GA-7VT600: VIA KT600 + VT8237 + IT8705
 */
static int it8705_rom_write_enable(const char *name)
{
	/* enter IT87xx conf mode */
	enter_conf_mode_ite(0x2e);

	/* select right flash chip */
	sio_mask(0x2e, 0x22, 0x80, 0x80);

	/* bit 3: flash chip write enable
	 * bit 7: map flash chip at 1MB-128K (why though? ignoring this.)
	 */
	sio_mask(0x2e, 0x24, 0x04, 0x04);

	/* exit IT87xx conf mode */
	exit_conf_mode_ite(0x2e);

	return 0;
}

/**
 * Suited for AOpen vKM400Am-S: VIA KM400 + VT8237 + IT8705F.
 */
static int board_aopen_vkm400(const char *name)
{
	struct pci_dev *dev;

	dev = pci_dev_find(0x1106, 0x3227);	/* VT8237 ISA bridge */
	if (!dev) {
		fprintf(stderr, "\nERROR: VT8237 ISA bridge not found.\n");
		return -1;
	}

	vt823x_set_all_writes_to_lpc(dev);

	return it8705_rom_write_enable(name);
}

/**
 * Winbond W83697HF Super I/O + VIA VT8235 southbridge
 *
 * Suited for:
 *   - MSI KT4V and KT4V-L: AMD K7 + VIA KT400 + VT8235
 *   - MSI KT4 Ultra: AMD K7 + VIA KT400 + VT8235
 *   - MSI KT3 Ultra2: AMD K7 + VIA KT333 + VT8235
 */
static int board_msi_kt4v(const char *name)
{
	struct pci_dev *dev;
	uint8_t val;

	dev = pci_dev_find(0x1106, 0x3177);	/* VT8235 ISA bridge */
	if (!dev) {
		fprintf(stderr, "\nERROR: VT823x ISA bridge not found.\n");
		return -1;
	}

	val = pci_read_byte(dev, 0x59);
	val &= 0x0c;
	pci_write_byte(dev, 0x59, val);

	vt823x_gpio_set(dev, 12, 1);
	w836xx_memw_enable(0x2E);

	return 0;
}

/**
 * Suited for Soyo SY-7VCA: Pro133A + VT82C686.
 */
static int board_soyo_sy_7vca(const char *name)
{
    	struct pci_dev *dev;
	uint32_t base;
	uint8_t tmp;

	/* VT82C686 Power management */
	dev = pci_dev_find(0x1106, 0x3057);
	if (!dev) {
		fprintf(stderr, "\nERROR: VT82C686 PM device not found.\n");
		return -1;
	}

	/* GPO0 output from PM IO base + 0x4C */
	tmp = pci_read_byte(dev, 0x54);
	tmp &= ~0x03;
	pci_write_byte(dev, 0x54, tmp);

	/* PM IO base */
	base = pci_read_long(dev, 0x48) & 0x0000FF00;

	/* Drop GPO0 */
	tmp = INB(base + 0x4C);
	tmp &= ~0x01;
	OUTB(tmp, base + 0x4C);

	return 0;
}

static int it8705f_write_enable(uint8_t port, const char *name)
{
	enter_conf_mode_ite(port);
	sio_mask(port, 0x24, 0x04, 0x04); /* Flash ROM I/F Writes Enable */
	exit_conf_mode_ite(port);

	return 0;
}

/**
 * Suited for:
 *   - Shuttle AK38N: VIA KT333CF + VIA VT8235 + ITE IT8705F
 *   - Elitegroup K7VTA3: VIA Apollo KT266/A/333 + VIA VT8235 + ITE IT8705F
 */
static int it8705f_write_enable_2e(const char *name)
{
	return it8705f_write_enable(0x2e, name);
}

/**
 * Find the runtime registers of an SMSC Super I/O, after verifying its
 * chip ID.
 *
 * Returns the base port of the runtime register block, or 0 on error.
 */
static uint16_t smsc_find_runtime(uint16_t sio_port, uint16_t chip_id,
                                  uint8_t logical_device)
{
	uint16_t rt_port = 0;

	/* Verify the chip ID. */
	OUTB(0x55, sio_port);  /* Enable configuration. */
	if (sio_read(sio_port, 0x20) != chip_id) {
		fprintf(stderr, "\nERROR: SMSC Super I/O not found.\n");
		goto out;
	}

	/* If the runtime block is active, get its address. */
	sio_write(sio_port, 0x07, logical_device);
	if (sio_read(sio_port, 0x30) & 1) {
		rt_port = (sio_read(sio_port, 0x60) << 8)
		          | sio_read(sio_port, 0x61);
	}

	if (rt_port == 0) {
		fprintf(stderr, "\nERROR: "
			"Super I/O runtime interface not available.\n");
	}
out:
	OUTB(0xaa, sio_port);  /* Disable configuration. */
	return rt_port;
}

/**
 * Disable write protection on the Mitac 6513WU.  WP# on the FWH is
 * connected to GP30 on the Super I/O, and TBL# is always high.
 */
static int board_mitac_6513wu(const char *name)
{
	struct pci_dev *dev;
	uint16_t rt_port;
	uint8_t val;

	dev = pci_dev_find(0x8086, 0x2410);	/* Intel 82801AA ISA bridge */
	if (!dev) {
		fprintf(stderr, "\nERROR: Intel 82801AA ISA bridge not found.\n");
		return -1;
	}

	rt_port = smsc_find_runtime(0x4e, 0x54 /* LPC47U33x */, 0xa);
	if (rt_port == 0)
		return -1;

	/* Configure the GPIO pin. */
	val = INB(rt_port + 0x33);  /* GP30 config */
	val &= ~0x87;               /* Output, non-inverted, GPIO, push/pull */
	OUTB(val, rt_port + 0x33);

	/* Disable write protection. */
	val = INB(rt_port + 0x4d);  /* GP3 values */
	val |= 0x01;                /* Set GP30 high. */
	OUTB(val, rt_port + 0x4d);

	return 0;
}

/**
 * Suited for Abit IP35: Intel P35 + ICH9R.
 */
static int board_abit_ip35(const char *name)
{
	struct pci_dev *dev;
	uint16_t base;
	uint8_t tmp;

	dev = pci_dev_find(0x8086, 0x2916);	/* Intel ICH9R LPC Interface */
	if (!dev) {
		fprintf(stderr, "\nERROR: Intel ICH9R LPC not found.\n");
		return -1;
	}

	/* get LPC GPIO base */
	base = pci_read_long(dev, 0x48) & 0x0000FFC0;

	/* Raise GPIO 16 */
	tmp = INB(base + 0x0E);
	tmp |= 0x01;
	OUTB(tmp, base + 0x0E);

	return 0;
}

/**
 * Suited for Asus A7V8X: VIA KT400 + VT8235 + IT8703F-A
 */
static int board_asus_a7v8x(const char *name)
{
	uint16_t id, base;
	uint8_t tmp;

	/* find the IT8703F */
	w836xx_ext_enter(0x2E);
	id = (sio_read(0x2E, 0x20) << 8) | sio_read(0x2E, 0x21);
	w836xx_ext_leave(0x2E);

	if (id != 0x8701) {
		fprintf(stderr, "\nERROR: IT8703F SuperIO not found.\n");
		return -1;
	}

	/* Get the GP567 IO base */
	w836xx_ext_enter(0x2E);
	sio_write(0x2E, 0x07, 0x0C);
	base = (sio_read(0x2E, 0x60) << 8) | sio_read(0x2E, 0x61);
	w836xx_ext_leave(0x2E);

	if (!base) {
		fprintf(stderr, "\nERROR: Failed to read IT8703F SuperIO GPIO"
			" Base.\n");
		return -1;
	}

	/* Raise GP51. */
	tmp = INB(base);
	tmp |= 0x02;
	OUTB(tmp, base);

	return 0;
}

/*
 * General routine for raising/dropping GPIO lines on the ITE IT8712F.
 * There is only some limited checking on the port numbers.
 */
static int
it8712f_gpio_set(unsigned int line, int raise)
{
	unsigned int port;
	uint16_t id, base;
	uint8_t tmp;

	port = line / 10;
	port--;
	line %= 10;

	/* Check line */
	if ((port > 4) || /* also catches unsigned -1 */
	    ((port < 4) && (line > 7)) || ((port == 4) && (line > 5))) {
	    fprintf(stderr,
		    "\nERROR: Unsupported IT8712F GPIO Line %02d.\n", line);
	    return -1;
	}

	/* find the IT8712F */
	enter_conf_mode_ite(0x2E);
	id = (sio_read(0x2E, 0x20) << 8) | sio_read(0x2E, 0x21);
	exit_conf_mode_ite(0x2E);

	if (id != 0x8712) {
		fprintf(stderr, "\nERROR: IT8712F SuperIO not found.\n");
		return -1;
	}

	/* Get the GPIO base */
	enter_conf_mode_ite(0x2E);
	sio_write(0x2E, 0x07, 0x07);
	base = (sio_read(0x2E, 0x62) << 8) | sio_read(0x2E, 0x63);
	exit_conf_mode_ite(0x2E);

	if (!base) {
		fprintf(stderr, "\nERROR: Failed to read IT8712F SuperIO GPIO"
			" Base.\n");
		return -1;
	}

	/* set GPIO. */
	tmp = INB(base + port);
	if (raise)
	    tmp |= 1 << line;
	else
	    tmp &= ~(1 << line);
	OUTB(tmp, base + port);

	return 0;
}

/**
 * Suited for Asus A7V600-X: VIA KT600 + VT8237 + IT8712F
 */
static int board_asus_a7v600x(const char *name)
{
	return it8712f_gpio_set(32, 1);
}

/**
 * Suited for Asus P4P800-E Deluxe: Intel Intel 865PE + ICH5R.
 */
static int board_asus_p4p800(const char *name)
{
	struct pci_dev *dev;
	uint16_t base;
	uint8_t tmp;

	dev = pci_dev_find(0x8086, 0x24D0);	/* Intel ICH5R ISA Bridge */
	if (!dev) {
		fprintf(stderr, "\nERROR: Intel ICH5R ISA Bridge not found.\n");
		return -1;
	}

	/* get PM IO base */
	base = pci_read_long(dev, 0x58) & 0x0000FFC0;

	/* Raise GPIO 21 */
	tmp = INB(base + 0x0E);
	tmp |= 0x20;
	OUTB(tmp, base + 0x0E);

	return 0;
}

/**
 * Below is the list of boards which need a special "board enable" code in
 * flashrom before their ROM chip can be accessed/written to.
 *
 * NOTE: Please add boards that _don't_ need such enables or don't work yet
 *       to the respective tables in print.c. Thanks!
 *
 * We use 2 sets of IDs here, you're free to choose which is which. This
 * is to provide a very high degree of certainty when matching a board on
 * the basis of subsystem/card IDs. As not every vendor handles
 * subsystem/card IDs in a sane manner.
 *
 * Keep the second set NULLed if it should be ignored. Keep the subsystem IDs
 * NULLed if they don't identify the board fully. But please take care to
 * provide an as complete set of pci ids as possible; autodetection is the
 * preferred behaviour and we would like to make sure that matches are unique.
 *
 * The coreboot ids are used two fold. When running with a coreboot firmware,
 * the ids uniquely matches the coreboot board identification string. When a
 * legacy bios is installed and when autodetection is not possible, these ids
 * can be used to identify the board through the -m command line argument.
 *
 * When a board is identified through its coreboot ids (in both cases), the
 * main pci ids are still required to match, as a safeguard.
 */

/* Please keep this list alphabetically ordered by vendor/board name. */
struct board_pciid_enable board_pciid_enables[] = {
	/* first pci-id set [4],          second pci-id set [4],          coreboot id [2],             vendor name    board name            flash enable */
	{0x8086, 0x2926, 0x147b, 0x1084,  0x11ab, 0x4364, 0x147b, 0x1084, NULL,         NULL,          "Abit",        "IP35",               board_abit_ip35},
	{0x8086, 0x1130,      0,      0,  0x105a, 0x0d30, 0x105a, 0x4d33, "acorp",      "6a815epd",    "Acorp",       "6A815EPD",           board_acorp_6a815epd},
	{0x1022, 0x746B, 0x1022, 0x36C0,       0,      0,      0,      0, "AGAMI",      "ARUMA",       "agami",       "Aruma",              w83627hf_gpio24_raise_2e},
	{0x1106, 0x3177, 0x17F2, 0x3177,  0x1106, 0x3148, 0x17F2, 0x3148, NULL,         NULL,          "Albatron",    "PM266A*",            board_epox_ep_8k5a2},
	{0x1106, 0x3205, 0x1106, 0x3205,  0x10EC, 0x8139, 0xA0A0, 0x0477, NULL,         NULL,          "AOpen",       "vKM400Am-S",         board_aopen_vkm400},
	{0x1022, 0x2090,      0,      0,  0x1022, 0x2080,      0,      0, "artecgroup", "dbe61",       "Artec Group", "DBE61",              board_artecgroup_dbe6x},
	{0x1022, 0x2090,      0,      0,  0x1022, 0x2080,      0,      0, "artecgroup", "dbe62",       "Artec Group", "DBE62",              board_artecgroup_dbe6x},
	{0x1106, 0x3189, 0x1043, 0x807F,  0x1106, 0x3065, 0x1043, 0x80ED, NULL,         NULL,          "ASUS",        "A7V600-X",           board_asus_a7v600x},
	{0x1106, 0x3189, 0x1043, 0x807F,  0x1106, 0x3177, 0x1043, 0x808C, NULL,         NULL,          "ASUS",        "A7V8X",              board_asus_a7v8x},
	{0x1106, 0x3177, 0x1043, 0x80A1,  0x1106, 0x3205, 0x1043, 0x8118, NULL,         NULL,          "ASUS",        "A7V8X-MX SE",        board_asus_a7v8x_mx},
	{0x8086, 0x1a30, 0x1043, 0x8070,  0x8086, 0x244b, 0x1043, 0x8028, NULL,         NULL,          "ASUS",        "P4B266",             ich2_gpio22_raise},
	{0x8086, 0x2570, 0x1043, 0x80F2,  0x105A, 0x3373, 0x1043, 0x80F5, NULL,         NULL,          "ASUS",        "P4P800-E Deluxe",    board_asus_p4p800},
	{0x10B9, 0x1541,      0,      0,  0x10B9, 0x1533,      0,      0, "asus",       "p5a",         "ASUS",        "P5A",                board_asus_p5a},
	{0x10DE, 0x0030, 0x1043, 0x818a,  0x8086, 0x100E, 0x1043, 0x80EE, NULL,         NULL,          "ASUS",        "P5ND2-SLI Deluxe",   board_asus_p5nd2_sli},
	{0x1106, 0x3149, 0x1565, 0x3206,  0x1106, 0x3344, 0x1565, 0x1202, NULL,         NULL,          "Biostar",     "P4M80-M4",           it8705_rom_write_enable},
	{0x8086, 0x3590, 0x1028, 0x016c,  0x1000, 0x0030, 0x1028, 0x016c, NULL,         NULL,          "Dell",        "PowerEdge 1850",     ich5_gpio23_raise},
	{0x1106, 0x3038, 0x1019, 0x0996,  0x1106, 0x3177, 0x1019, 0x0996, NULL,         NULL,          "Elitegroup",  "K7VTA3",             it8705f_write_enable_2e},
	{0x1106, 0x3177, 0x1106, 0x3177,  0x1106, 0x3059, 0x1695, 0x3005, NULL,         NULL,          "EPoX",        "EP-8K5A2",           board_epox_ep_8k5a2},
	{0x10EC, 0x8139, 0x1695, 0x9001,  0x11C1, 0x5811, 0x1695, 0x9015, NULL,         NULL,          "EPoX",        "EP-8RDA3+",          board_epox_ep_8rda3plus},
	{0x8086, 0x7110,      0,      0,  0x8086, 0x7190,      0,      0, "epox",       "ep-bx3",      "EPoX",        "EP-BX3",             board_epox_ep_bx3},
	{0x1039, 0x0761,      0,      0,       0,      0,      0,      0, "gigabyte",   "2761gxdk",    "GIGABYTE",    "GA-2761GXDK",        it87xx_probe_spi_flash},
	{0x1106, 0x3227, 0x1458, 0x5001,  0x10ec, 0x8139, 0x1458, 0xe000, NULL,         NULL,          "GIGABYTE",    "GA-7VT600",          it8705_rom_write_enable},
	{0x10DE, 0x0050, 0x1458, 0x0C11,  0x10DE, 0x005e, 0x1458, 0x5000, NULL,         NULL,          "GIGABYTE",    "GA-K8N-SLI",         board_ga_k8n_sli},
	{0x10de, 0x0360,      0,      0,       0,      0,      0,      0, "gigabyte",   "m57sli",      "GIGABYTE",    "GA-M57SLI-S4",       it87xx_probe_spi_flash},
	{0x10de, 0x03e0,      0,      0,       0,      0,      0,      0, "gigabyte",   "m61p",        "GIGABYTE",    "GA-M61P-S3",         it87xx_probe_spi_flash},
	{0x1002, 0x4398, 0x1458, 0x5004,  0x1002, 0x4391, 0x1458, 0xb000, NULL,         NULL,          "GIGABYTE",    "GA-MA78G-DS3H",      it87xx_probe_spi_flash},
	{0x1002, 0x4398, 0x1458, 0x5004,  0x1002, 0x4391, 0x1458, 0xb002, NULL,         NULL,          "GIGABYTE",    "GA-MA78GM-S2H",      it87xx_probe_spi_flash},
	/* SB600 LPC, RD790 North. Neither are specific to the GA-MA790FX-DQ6. The coreboot ID is here to be able to trigger the board enable more easily. */
	{0x1002, 0x438d, 0x1458, 0x5001,  0x1002, 0x5956, 0x1002, 0x5956, "gigabyte",   "ma790fx-dq6", "GIGABYTE",    "GA-MA790FX-DQ6",     it87xx_probe_spi_flash},
	{0x1166, 0x0223, 0x103c, 0x320d,  0x102b, 0x0522, 0x103c, 0x31fa, "hp",         "dl145_g3",    "HP",          "DL145 G3",           board_hp_dl145_g3_enable},
	{0x1166, 0x0205, 0x1014, 0x0347,       0,      0,      0,      0, "ibm",        "x3455",       "IBM",         "x3455",              board_ibm_x3455},
	{0x1039, 0x5513, 0x8086, 0xd61f,  0x1039, 0x6330, 0x8086, 0xd61f, NULL,         NULL,          "Intel",       "D201GLY",            wbsio_check_for_spi},
	{0x1022, 0x7468,      0,      0,       0,      0,      0,      0, "iwill",      "dk8_htx",     "IWILL",       "DK8-HTX",            w83627hf_gpio24_raise_2e},
	/* Note: There are >= 2 version of the Kontron 986LCD-M/mITX! */
	{0x8086, 0x27b8,      0,      0,       0,      0,      0,      0, "kontron",    "986lcd-m",    "Kontron",     "986LCD-M",           board_kontron_986lcd_m},
	{0x10ec, 0x8168, 0x10ec, 0x8168,  0x104c, 0x8023, 0x104c, 0x8019, "kontron",    "986lcd-m",    "Kontron",     "986LCD-M",           board_kontron_986lcd_m},
	{0x8086, 0x2411, 0x8086, 0x2411,  0x8086, 0x7125, 0x0e11, 0xb165, NULL,         NULL,          "Mitac",       "6513WU",             board_mitac_6513wu},
	{0x13f6, 0x0111, 0x1462, 0x5900,  0x1106, 0x3177, 0x1106,      0, "msi",        "kt4ultra",    "MSI",         "MS-6590 (KT4 Ultra)",board_msi_kt4v},
	{0x1106, 0x3149, 0x1462, 0x7094,  0x10ec, 0x8167, 0x1462, 0x094c, NULL,         NULL,          "MSI",         "MS-6702E (K8T Neo2-F)",w83627thf_gpio4_4_raise_2e},
	{0x1106, 0x0571, 0x1462, 0x7120,       0,      0,      0,      0, "msi",        "kt4v",        "MSI",         "MS-6712 (KT4V)",     board_msi_kt4v},
	{0x8086, 0x2658, 0x1462, 0x7046,  0x1106, 0x3044, 0x1462, 0x046d, NULL,         NULL,          "MSI",         "MS-7046",            ich6_gpio19_raise},
	{0x10de, 0x005e,      0,      0,       0,      0,      0,      0, "msi",        "k8n-neo3",    "MSI",         "MS-7135 (K8N Neo3)", w83627thf_gpio4_4_raise_4e},
	{0x1106, 0x3104, 0x1297, 0xa238,  0x1106, 0x3059, 0x1297, 0xc063, NULL,         NULL,          "Shuttle",     "AK38N",              it8705f_write_enable_2e},
	{0x10DE, 0x0050, 0x1297, 0x5036,  0x1412, 0x1724, 0x1297, 0x5036, NULL,         NULL,          "Shuttle",     "FN25",               board_shuttle_fn25},
	{0x1106, 0x3038, 0x0925, 0x1234,  0x1106, 0x3058, 0x15DD, 0x7609, NULL,         NULL,          "Soyo",        "SY-7VCA",            board_soyo_sy_7vca},
	{0x8086, 0x1076, 0x8086, 0x1176,  0x1106, 0x3059, 0x10f1, 0x2498, NULL,         NULL,          "Tyan",        "S2498 (Tomcat K7M)", board_asus_a7v8x_mx},
	{0x1106, 0x0314, 0x1106, 0xaa08,  0x1106, 0x3227, 0x1106, 0xAA08, NULL,         NULL,          "VIA",         "EPIA-CN",            board_via_epia_sp},
	{0x1106, 0x3177, 0x1106, 0xAA01,  0x1106, 0x3123, 0x1106, 0xAA01, NULL,         NULL,          "VIA",         "EPIA M/MII/...",     board_via_epia_m},
	{0x1106, 0x0259, 0x1106, 0x3227,  0x1106, 0x3065, 0x1106, 0x3149, "via",        "epia-n",      "VIA",         "EPIA-N/NL",          board_via_epia_n}, /* TODO: remove coreboot ids */
	{0x1106, 0x3227, 0x1106, 0xAA01,  0x1106, 0x0259, 0x1106, 0xAA01, NULL,         NULL,          "VIA",         "EPIA SP",            board_via_epia_sp},
	{0x1106, 0x5337, 0x1458, 0xb003,  0x1106, 0x287e, 0x1106, 0x337e, "via",        "pc3500g",     "VIA",         "PC3500G",            it87xx_probe_spi_flash},

	{     0,      0,      0,      0,       0,      0,      0,      0, NULL,         NULL,          NULL,          NULL,                 NULL}, /* end marker */
};

/**
 * Match boards on coreboot table gathered vendor and part name.
 * Require main PCI IDs to match too as extra safety.
 */
static struct board_pciid_enable *board_match_coreboot_name(const char *vendor,
							    const char *part)
{
	struct board_pciid_enable *board = board_pciid_enables;
	struct board_pciid_enable *partmatch = NULL;

	for (; board->vendor_name; board++) {
		if (vendor && (!board->lb_vendor
			       || strcasecmp(board->lb_vendor, vendor)))
			continue;

		if (!board->lb_part || strcasecmp(board->lb_part, part))
			continue;

		if (!pci_dev_find(board->first_vendor, board->first_device))
			continue;

		if (board->second_vendor &&
		    !pci_dev_find(board->second_vendor, board->second_device))
			continue;

		if (vendor)
			return board;

		if (partmatch) {
			/* a second entry has a matching part name */
			printf("AMBIGUOUS BOARD NAME: %s\n", part);
			printf("At least vendors '%s' and '%s' match.\n",
			       partmatch->lb_vendor, board->lb_vendor);
			printf("Please use the full -m vendor:part syntax.\n");
			return NULL;
		}
		partmatch = board;
	}

	if (partmatch)
		return partmatch;

	if (!partvendor_from_cbtable) {
		/* Only warn if the mainboard type was not gathered from the
		 * coreboot table. If it was, the coreboot implementor is
		 * expected to fix flashrom, too.
		 */
		printf("\nUnknown vendor:board from -m option: %s:%s\n\n",
		       vendor, part);
	}
	return NULL;
}

/**
 * Match boards on PCI IDs and subsystem IDs.
 * Second set of IDs can be main only or missing completely.
 */
static struct board_pciid_enable *board_match_pci_card_ids(void)
{
	struct board_pciid_enable *board = board_pciid_enables;

	for (; board->vendor_name; board++) {
		if (!board->first_card_vendor || !board->first_card_device)
			continue;

		if (!pci_card_find(board->first_vendor, board->first_device,
				   board->first_card_vendor,
				   board->first_card_device))
			continue;

		if (board->second_vendor) {
			if (board->second_card_vendor) {
				if (!pci_card_find(board->second_vendor,
						   board->second_device,
						   board->second_card_vendor,
						   board->second_card_device))
					continue;
			} else {
				if (!pci_dev_find(board->second_vendor,
						  board->second_device))
					continue;
			}
		}

		return board;
	}

	return NULL;
}

int board_flash_enable(const char *vendor, const char *part)
{
	struct board_pciid_enable *board = NULL;
	int ret = 0;

	if (part)
		board = board_match_coreboot_name(vendor, part);

	if (!board)
		board = board_match_pci_card_ids();

	if (board) {
		printf("Disabling flash write protection for board \"%s %s\"... ",
		       board->vendor_name, board->board_name);

		ret = board->enable(board->vendor_name);
		if (ret)
			printf("FAILED!\n");
		else
			printf("OK.\n");
	}

	return ret;
}