coreboot-kgpe-d16/util/flashrom/board_enable.c

609 lines
15 KiB
C

/*
* 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) 2007-2008 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 <stdio.h>
#include <pci/pci.h>
#include <stdint.h>
#include <string.h>
#include <fcntl.h>
#include "flash.h"
/*
* Helper functions for many Winbond Super I/Os of the W836xx range.
*/
/* Enter extended functions */
static void w836xx_ext_enter(uint16_t port)
{
outb(0x87, port);
outb(0x87, port);
}
/* Leave extended functions */
static void w836xx_ext_leave(uint16_t port)
{
outb(0xAA, port);
}
/* General functions for reading/writing Winbond Super I/Os. */
static unsigned char wbsio_read(uint16_t index, uint8_t reg)
{
outb(reg, index);
return inb(index + 1);
}
static void wbsio_write(uint16_t index, uint8_t reg, uint8_t data)
{
outb(reg, index);
outb(data, index + 1);
}
static void wbsio_mask(uint16_t index, uint8_t reg, uint8_t data, uint8_t mask)
{
uint8_t tmp;
outb(reg, index);
tmp = inb(index + 1) & ~mask;
outb(tmp | (data & mask), index + 1);
}
/**
* Winbond W83627HF: Raise GPIO24.
*
* Suited for:
* - Agami Aruma
* - IWILL DK8-HTX
*/
static int w83627hf_gpio24_raise(uint16_t index, const char *name)
{
w836xx_ext_enter(index);
/* Is this the W83627HF? */
if (wbsio_read(index, 0x20) != 0x52) { /* Super I/O device ID reg. */
fprintf(stderr, "\nERROR: %s: W83627HF: Wrong ID: 0x%02X.\n",
name, wbsio_read(index, 0x20));
w836xx_ext_leave(index);
return -1;
}
/* PIN89S: WDTO/GP24 multiplex -> GPIO24 */
wbsio_mask(index, 0x2B, 0x10, 0x10);
/* Select logical device 8: GPIO port 2 */
wbsio_write(index, 0x07, 0x08);
wbsio_mask(index, 0x30, 0x01, 0x01); /* Activate logical device. */
wbsio_mask(index, 0xF0, 0x00, 0x10); /* GPIO24 -> output */
wbsio_mask(index, 0xF2, 0x00, 0x10); /* Clear GPIO24 inversion */
wbsio_mask(index, 0xF1, 0x10, 0x10); /* Raise GPIO24 */
w836xx_ext_leave(index);
return 0;
}
static int w83627hf_gpio24_raise_2e(const char *name)
{
/* TODO: Typo? Shouldn't this be 0x2e? */
return w83627hf_gpio24_raise(0x2d, name);
}
/**
* Winbond W83627THF: GPIO 4, bit 4
*
* Suited for:
* - MSI K8N-NEO3
*/
static int w83627thf_gpio4_4_raise(uint16_t index, const char *name)
{
w836xx_ext_enter(index);
/* Is this the W83627THF? */
if (wbsio_read(index, 0x20) != 0x82) { /* Super I/O device ID reg. */
fprintf(stderr, "\nERROR: %s: W83627THF: Wrong ID: 0x%02X.\n",
name, wbsio_read(index, 0x20));
w836xx_ext_leave(index);
return -1;
}
/* PINxxxxS: GPIO4/bit 4 multiplex -> GPIOXXX */
wbsio_write(index, 0x07, 0x09); /* Select LDN 9: GPIO port 4 */
wbsio_mask(index, 0x30, 0x02, 0x02); /* Activate logical device. */
wbsio_mask(index, 0xF4, 0x00, 0x10); /* GPIO4 bit 4 -> output */
wbsio_mask(index, 0xF6, 0x00, 0x10); /* Clear GPIO4 bit 4 inversion */
wbsio_mask(index, 0xF5, 0x10, 0x10); /* Raise GPIO4 bit 4 */
w836xx_ext_leave(index);
return 0;
}
static int w83627thf_gpio4_4_raise_4e(const char *name)
{
return w83627thf_gpio4_4_raise(0x4e, name);
}
/**
* 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;
uint16_t base;
uint8_t val;
dev = pci_dev_find(0x1106, 0x3177); /* VT8235 ISA bridge */
if (!dev) {
fprintf(stderr, "\nERROR: VT8235 ISA bridge not found.\n");
return -1;
}
/* GPIO12-15 -> output */
val = pci_read_byte(dev, 0xE4);
val |= 0x10;
pci_write_byte(dev, 0xE4, val);
/* Get Power Management IO address. */
base = pci_read_word(dev, 0x88) & 0xFF80;
/* Enable GPIO15 which is connected to write protect. */
val = inb(base + 0x4D);
val |= 0x80;
outb(val, base + 0x4D);
return 0;
}
/**
* Suited for:
* - ASUS A7V8X-MX SE and A7V400-MX: AMD K7 + VIA KM400A + VT8235
* - Tyan Tomcat K7M: AMD Geode NX + VIA KM400 + VT8237.
*/
static int board_asus_a7v8x_mx(const char *name)
{
struct pci_dev *dev;
uint8_t val;
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;
}
/* This bit is marked reserved actually. */
val = pci_read_byte(dev, 0x59);
val &= 0x7F;
pci_write_byte(dev, 0x59, val);
/* Raise ROM MEMW# line on Winbond W83697 Super I/O. */
w836xx_ext_enter(0x2E);
if (!(wbsio_read(0x2E, 0x24) & 0x02)) /* Flash ROM enabled? */
wbsio_mask(0x2E, 0x24, 0x08, 0x08); /* Enable MEMW#. */
w836xx_ext_leave(0x2E);
return 0;
}
/**
* Suited for VIAs EPIA SP.
*/
static int board_via_epia_sp(const char *name)
{
struct pci_dev *dev;
uint8_t val;
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 */
val = pci_read_byte(dev, 0x59);
val &= ~0x80;
pci_write_byte(dev, 0x59, val);
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)
{
uint8_t byte;
/* Set GPIO lines in the Broadcom HT-1000 southbridge. */
outb(0x45, 0xcd6);
byte = inb(0xcd7);
outb(byte | 0x20, 0xcd7);
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)
unsigned long msr[2];
int msr_fd;
unsigned long boot_loc;
msr_fd = open("/dev/cpu/0/msr", O_RDWR);
if (msr_fd == -1) {
perror("open /dev/cpu/0/msr");
return -1;
}
if (lseek(msr_fd, DBE6x_MSR_DIVIL_BALL_OPTS, SEEK_SET) == -1) {
perror("lseek");
close(msr_fd);
return -1;
}
if (read(msr_fd, (void*) msr, 8) != 8) {
perror("read");
close(msr_fd);
return -1;
}
if ((msr[0] & (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[0] &= ~(DBE6x_PRI_BOOT_LOC | DBE6x_SEC_BOOT_LOC);
msr[0] |= ((boot_loc << DBE6x_PRI_BOOT_LOC_SHIFT) |
(boot_loc << DBE6x_SEC_BOOT_LOC_SHIFT));
if (lseek(msr_fd, DBE6x_MSR_DIVIL_BALL_OPTS, SEEK_SET) == -1) {
perror("lseek");
close(msr_fd);
return -1;
}
if (write(msr_fd, (void*) msr, 8) != 8) {
perror("write");
close(msr_fd);
return -1;
}
close(msr_fd);
return 0;
}
/**
* 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.
*/
struct board_pciid_enable {
/* Any device, but make it sensible, like the ISA bridge. */
uint16_t first_vendor;
uint16_t first_device;
uint16_t first_card_vendor;
uint16_t first_card_device;
/* Any device, but make it sensible, like
* the host bridge. May be NULL.
*/
uint16_t second_vendor;
uint16_t second_device;
uint16_t second_card_vendor;
uint16_t second_card_device;
/* The vendor / part name from the coreboot table. */
const char *lb_vendor;
const char *lb_part;
const char *name;
int (*enable) (const char *name);
};
struct board_pciid_enable board_pciid_enables[] = {
{0x10de, 0x0360, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
"gigabyte", "m57sli", "GIGABYTE GA-M57SLI-S4", it87xx_probe_spi_flash},
{0x10de, 0x03e0, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
"gigabyte", "m61p", "GIGABYTE GA-M61P-S3", it87xx_probe_spi_flash},
{0x1039, 0x0761, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
"gigabyte", "2761gxdk", "GIGABYTE GA-2761GXDK", it87xx_probe_spi_flash},
{0x1022, 0x7468, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
"iwill", "dk8_htx", "IWILL DK8-HTX", w83627hf_gpio24_raise_2e},
{0x10de, 0x005e, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
"msi", "k8n-neo3", "MSI K8N Neo3", w83627thf_gpio4_4_raise_4e},
{0x1022, 0x746B, 0x1022, 0x36C0, 0x0000, 0x0000, 0x0000, 0x0000,
"AGAMI", "ARUMA", "agami Aruma", w83627hf_gpio24_raise_2e},
{0x1106, 0x3177, 0x1106, 0xAA01, 0x1106, 0x3123, 0x1106, 0xAA01,
NULL, NULL, "VIA EPIA M/MII/...", board_via_epia_m},
{0x1106, 0x3177, 0x1043, 0x80A1, 0x1106, 0x3205, 0x1043, 0x8118,
NULL, NULL, "ASUS A7V8-MX SE", board_asus_a7v8x_mx},
{0x1106, 0x3227, 0x1106, 0xAA01, 0x1106, 0x0259, 0x1106, 0xAA01,
NULL, NULL, "VIA EPIA SP", board_via_epia_sp},
{0x8086, 0x1076, 0x8086, 0x1176, 0x1106, 0x3059, 0x10f1, 0x2498,
NULL, NULL, "Tyan Tomcat K7M", board_asus_a7v8x_mx},
{0x10B9, 0x1541, 0x0000, 0x0000, 0x10B9, 0x1533, 0x0000, 0x0000,
"asus", "p5a", "ASUS P5A", board_asus_p5a},
{0x1166, 0x0205, 0x1014, 0x0347, 0x0000, 0x0000, 0x0000, 0x0000,
"ibm", "x3455", "IBM x3455", board_ibm_x3455},
{0x8086, 0x7110, 0x0000, 0x0000, 0x8086, 0x7190, 0x0000, 0x0000,
"epox", "ep-bx3", "EPoX EP-BX3", board_epox_ep_bx3},
{0x8086, 0x1130, 0x0000, 0x0000, 0x105a, 0x0d30, 0x105a, 0x4d33,
"acorp", "6a815epd", "Acorp 6A815EPD", board_acorp_6a815epd},
{0x1022, 0x2090, 0x0000, 0x0000, 0x1022, 0x2080, 0x0000, 0x0000,
"artecgroup", "dbe61", "Artec Group DBE61", board_artecgroup_dbe6x},
{0x1022, 0x2090, 0x0000, 0x0000, 0x1022, 0x2080, 0x0000, 0x0000,
"artecgroup", "dbe62", "Artec Group DBE62", board_artecgroup_dbe6x},
{0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL} /* Keep this */
};
/**
* 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->name; board++) {
if (vendor && (!board->lb_vendor || strcmp(board->lb_vendor, vendor)))
continue;
if (!board->lb_part || strcmp(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;
printf("NOT FOUND %s:%s\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->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("Found board \"%s\": enabling flash write... ",
board->name);
ret = board->enable(board->name);
if (ret)
printf("FAILED!\n");
else
printf("OK.\n");
}
return ret;
}