blob: 5a755614bea1d71f5b2170b2639789dd7279495a [file] [log] [blame]
/*
* flash rom utility: enable flash writes (board specific)
*
* Copyright (C) 2005-2007 coresystems GmbH <stepan@coresystems.de>
* Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de>
* Copyright (C) 2007 Luc Verhaegen <libv@skynet.be>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2
*
*/
/*
* Contains the board specific flash enables.
*/
#include <stdio.h>
#include <pci/pci.h>
#include <stdint.h>
#include <string.h>
#include "flash.h"
#include "debug.h"
/*
* Helper functions for many Winbond superIOs of the w836xx range.
*/
#define W836_INDEX 0x2E
#define W836_DATA 0x2F
/* Enter extended functions */
static void w836xx_ext_enter(void)
{
outb(0x87, W836_INDEX);
outb(0x87, W836_INDEX);
}
/* Leave extended functions */
static void w836xx_ext_leave(void)
{
outb(0xAA, W836_INDEX);
}
/* General functions for read/writing WB SuperIOs */
static unsigned char wbsio_read(unsigned char index)
{
outb(index, W836_INDEX);
return inb(W836_DATA);
}
static void wbsio_write(unsigned char index, unsigned char data)
{
outb(index, W836_INDEX);
outb(data, W836_DATA);
}
static void
wbsio_mask(unsigned char index, unsigned char data, unsigned char mask)
{
unsigned char tmp;
outb(index, W836_INDEX);
tmp = inb(W836_DATA) & ~mask;
outb(tmp | (data & mask), W836_DATA);
}
/*
* WinBond w83627hf: raise GPIO24.
*
* Suited for:
* * Agami Aruma
* * IWILL DK8-HTX
*/
static int w83627hf_gpio24_raise(const char *name)
{
w836xx_ext_enter();
/* Is this the w83627hf? */
if (wbsio_read(0x20) != 0x52) { /* SIO device ID register */
fprintf(stderr, "\nERROR: %s: W83627HF: Wrong ID: 0x%02X.\n",
name, wbsio_read(0x20));
w836xx_ext_leave();
return -1;
}
/* PIN89S: WDTO/GP24 multiplex -> GPIO24 */
wbsio_mask(0x2B, 0x10, 0x10);
wbsio_write(0x07, 0x08); /* Select logical device 8: GPIO port 2 */
wbsio_mask(0x30, 0x01, 0x01); /* Activate logical device. */
wbsio_mask(0xF0, 0x00, 0x10); /* GPIO24 -> output */
wbsio_mask(0xF2, 0x00, 0x10); /* Clear GPIO24 inversion */
wbsio_mask(0xF1, 0x10, 0x10); /* Raise GPIO24 */
w836xx_ext_leave();
return 0;
}
/*
* Suited for VIAs EPIA M and MII, and maybe other CLE266 based EPIAs.
*
* We don't need to do this when using linuxbios, GPIO15 is never lowered there.
*/
static int board_via_epia_m(const char *name)
{
struct pci_dev *dev;
unsigned int 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 SuperIO */
w836xx_ext_enter();
if (!(wbsio_read(0x24) & 0x02)) /* flash rom enabled? */
wbsio_mask(0x24, 0x08, 0x08); /* enable MEMW# */
w836xx_ext_leave();
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;
}
/*
* We use 2 sets of ids here, you're free to choose which is which. This
* 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.
*
*/
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;
/* From linuxbios table */
char *lb_vendor;
char *lb_part;
char *name;
int (*enable) (const char *name);
};
struct board_pciid_enable board_pciid_enables[] = {
{0x1022, 0x7468, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
"iwill", "dk8_htx", "IWILL DK8-HTX", w83627hf_gpio24_raise},
{0x1022, 0x746B, 0x1022, 0x36C0, 0x0000, 0x0000, 0x0000, 0x0000,
"AGAMI", "ARUMA", "agami Aruma", w83627hf_gpio24_raise},
{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},
{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},
{0, 0, 0, 0, 0, 0, 0, 0, NULL, NULL} /* Keep this */
};
/*
* Match boards on linuxbios table gathered vendor and part name.
* Require main pci-ids to match too as extra safety.
*
*/
static struct board_pciid_enable *board_match_linuxbios_name(char *vendor,
char *part)
{
struct board_pciid_enable *board = board_pciid_enables;
for (; board->name; board++) {
if (!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;
return board;
}
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(char *vendor, char *part)
{
struct board_pciid_enable *board = NULL;
int ret = 0;
if (vendor && part)
board = board_match_linuxbios_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;
}