blob: d8efd0bfc3e464a7c86ae5fdc991c850848354b4 [file] [log] [blame]
/*
* This file is part of the flashrom project.
*
* Copyright (C) 2000 Silicon Integrated System Corporation
* Copyright (C) 2005-2009 coresystems GmbH
* Copyright (C) 2006 Uwe Hermann <uwe@hermann-uwe.de>
* Copyright (C) 2007,2008,2009 Carl-Daniel Hailfinger
* Copyright (C) 2009 Kontron Modular Computers GmbH
*
* 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 chipset specific flash enables.
*/
#define _LARGEFILE64_SOURCE
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "flash.h"
#include "programmer.h"
#define NOT_DONE_YET 1
#if defined(__i386__) || defined(__x86_64__)
static int enable_flash_ali_m1533(struct pci_dev *dev, const char *name)
{
uint8_t tmp;
/*
* ROM Write enable, 0xFFFC0000-0xFFFDFFFF and
* 0xFFFE0000-0xFFFFFFFF ROM select enable.
*/
tmp = pci_read_byte(dev, 0x47);
tmp |= 0x46;
rpci_write_byte(dev, 0x47, tmp);
return 0;
}
static int enable_flash_sis85c496(struct pci_dev *dev, const char *name)
{
uint8_t tmp;
tmp = pci_read_byte(dev, 0xd0);
tmp |= 0xf8;
rpci_write_byte(dev, 0xd0, tmp);
return 0;
}
static int enable_flash_sis_mapping(struct pci_dev *dev, const char *name)
{
uint8_t new, newer;
/* Extended BIOS enable = 1, Lower BIOS Enable = 1 */
/* This is 0xFFF8000~0xFFFF0000 decoding on SiS 540/630. */
new = pci_read_byte(dev, 0x40);
new &= (~0x04); /* No idea why we clear bit 2. */
new |= 0xb; /* 0x3 for some chipsets, bit 7 seems to be don't care. */
rpci_write_byte(dev, 0x40, new);
newer = pci_read_byte(dev, 0x40);
if (newer != new) {
msg_perr("tried to set register 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x40, new, name);
msg_perr("Stuck at 0x%x\n", newer);
return -1;
}
return 0;
}
static struct pci_dev *find_southbridge(uint16_t vendor, const char *name)
{
struct pci_dev *sbdev;
sbdev = pci_dev_find_vendorclass(vendor, 0x0601);
if (!sbdev)
sbdev = pci_dev_find_vendorclass(vendor, 0x0680);
if (!sbdev)
sbdev = pci_dev_find_vendorclass(vendor, 0x0000);
if (!sbdev)
msg_perr("No southbridge found for %s!\n", name);
if (sbdev)
msg_pdbg("Found southbridge %04x:%04x at %02x:%02x:%01x\n",
sbdev->vendor_id, sbdev->device_id,
sbdev->bus, sbdev->dev, sbdev->func);
return sbdev;
}
static int enable_flash_sis501(struct pci_dev *dev, const char *name)
{
uint8_t tmp;
int ret = 0;
struct pci_dev *sbdev;
sbdev = find_southbridge(dev->vendor_id, name);
if (!sbdev)
return -1;
ret = enable_flash_sis_mapping(sbdev, name);
tmp = sio_read(0x22, 0x80);
tmp &= (~0x20);
tmp |= 0x4;
sio_write(0x22, 0x80, tmp);
tmp = sio_read(0x22, 0x70);
tmp &= (~0x20);
tmp |= 0x4;
sio_write(0x22, 0x70, tmp);
return ret;
}
static int enable_flash_sis5511(struct pci_dev *dev, const char *name)
{
uint8_t tmp;
int ret = 0;
struct pci_dev *sbdev;
sbdev = find_southbridge(dev->vendor_id, name);
if (!sbdev)
return -1;
ret = enable_flash_sis_mapping(sbdev, name);
tmp = sio_read(0x22, 0x50);
tmp &= (~0x20);
tmp |= 0x4;
sio_write(0x22, 0x50, tmp);
return ret;
}
static int enable_flash_sis530(struct pci_dev *dev, const char *name)
{
uint8_t new, newer;
int ret = 0;
struct pci_dev *sbdev;
sbdev = find_southbridge(dev->vendor_id, name);
if (!sbdev)
return -1;
ret = enable_flash_sis_mapping(sbdev, name);
new = pci_read_byte(sbdev, 0x45);
new &= (~0x20);
new |= 0x4;
rpci_write_byte(sbdev, 0x45, new);
newer = pci_read_byte(sbdev, 0x45);
if (newer != new) {
msg_perr("tried to set register 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x45, new, name);
msg_perr("Stuck at 0x%x\n", newer);
ret = -1;
}
return ret;
}
static int enable_flash_sis540(struct pci_dev *dev, const char *name)
{
uint8_t new, newer;
int ret = 0;
struct pci_dev *sbdev;
sbdev = find_southbridge(dev->vendor_id, name);
if (!sbdev)
return -1;
ret = enable_flash_sis_mapping(sbdev, name);
new = pci_read_byte(sbdev, 0x45);
new &= (~0x80);
new |= 0x40;
rpci_write_byte(sbdev, 0x45, new);
newer = pci_read_byte(sbdev, 0x45);
if (newer != new) {
msg_perr("tried to set register 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x45, new, name);
msg_perr("Stuck at 0x%x\n", newer);
ret = -1;
}
return ret;
}
/* Datasheet:
* - Name: 82371AB PCI-TO-ISA / IDE XCELERATOR (PIIX4)
* - URL: http://www.intel.com/design/intarch/datashts/290562.htm
* - PDF: http://www.intel.com/design/intarch/datashts/29056201.pdf
* - Order Number: 290562-001
*/
static int enable_flash_piix4(struct pci_dev *dev, const char *name)
{
uint16_t old, new;
uint16_t xbcs = 0x4e; /* X-Bus Chip Select register. */
buses_supported = CHIP_BUSTYPE_PARALLEL;
old = pci_read_word(dev, xbcs);
/* Set bit 9: 1-Meg Extended BIOS Enable (PCI master accesses to
* FFF00000-FFF7FFFF are forwarded to ISA).
* Note: This bit is reserved on PIIX/PIIX3/MPIIX.
* Set bit 7: Extended BIOS Enable (PCI master accesses to
* FFF80000-FFFDFFFF are forwarded to ISA).
* Set bit 6: Lower BIOS Enable (PCI master, or ISA master accesses to
* the lower 64-Kbyte BIOS block (E0000-EFFFF) at the top
* of 1 Mbyte, or the aliases at the top of 4 Gbyte
* (FFFE0000-FFFEFFFF) result in the generation of BIOSCS#.
* Note: Accesses to FFFF0000-FFFFFFFF are always forwarded to ISA.
* Set bit 2: BIOSCS# Write Enable (1=enable, 0=disable).
*/
if (dev->device_id == 0x122e || dev->device_id == 0x7000
|| dev->device_id == 0x1234)
new = old | 0x00c4; /* PIIX/PIIX3/MPIIX: Bit 9 is reserved. */
else
new = old | 0x02c4;
if (new == old)
return 0;
rpci_write_word(dev, xbcs, new);
if (pci_read_word(dev, xbcs) != new) {
msg_perr("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", xbcs, new, name);
return -1;
}
return 0;
}
/*
* See ie. page 375 of "Intel I/O Controller Hub 7 (ICH7) Family Datasheet"
* http://download.intel.com/design/chipsets/datashts/30701303.pdf
*/
static int enable_flash_ich(struct pci_dev *dev, const char *name,
int bios_cntl)
{
uint8_t old, new;
/*
* Note: the ICH0-ICH5 BIOS_CNTL register is actually 16 bit wide, but
* just treating it as 8 bit wide seems to work fine in practice.
*/
old = pci_read_byte(dev, bios_cntl);
msg_pdbg("\nBIOS Lock Enable: %sabled, ",
(old & (1 << 1)) ? "en" : "dis");
msg_pdbg("BIOS Write Enable: %sabled, ",
(old & (1 << 0)) ? "en" : "dis");
msg_pdbg("BIOS_CNTL is 0x%x\n", old);
new = old | 1;
if (new == old)
return 0;
rpci_write_byte(dev, bios_cntl, new);
if (pci_read_byte(dev, bios_cntl) != new) {
msg_perr("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", bios_cntl, new, name);
return -1;
}
return 0;
}
static int enable_flash_ich_4e(struct pci_dev *dev, const char *name)
{
/*
* Note: ICH5 has registers similar to FWH_SEL1, FWH_SEL2 and
* FWH_DEC_EN1, but they are called FB_SEL1, FB_SEL2, FB_DEC_EN1 and
* FB_DEC_EN2.
*/
buses_supported = CHIP_BUSTYPE_FWH;
return enable_flash_ich(dev, name, 0x4e);
}
static int enable_flash_ich_dc(struct pci_dev *dev, const char *name)
{
uint32_t fwh_conf;
int i;
char *idsel = NULL;
int tmp;
int max_decode_fwh_idsel = 0;
int max_decode_fwh_decode = 0;
int contiguous = 1;
idsel = extract_programmer_param("fwh_idsel");
if (idsel && strlen(idsel)) {
fwh_conf = (uint32_t)strtoul(idsel, NULL, 0);
/* FIXME: Need to undo this on shutdown. */
msg_pinfo("\nSetting IDSEL=0x%x for top 16 MB", fwh_conf);
rpci_write_long(dev, 0xd0, fwh_conf);
rpci_write_word(dev, 0xd4, fwh_conf);
/* FIXME: Decode settings are not changed. */
} else if (idsel) {
msg_perr("Error: idsel= specified, but no number given.\n");
free(idsel);
/* FIXME: Return failure here once internal_init() starts
* to care about the return value of the chipset enable.
*/
exit(1);
}
free(idsel);
/* Ignore all legacy ranges below 1 MB.
* We currently only support flashing the chip which responds to
* IDSEL=0. To support IDSEL!=0, flashbase and decode size calculations
* have to be adjusted.
*/
/* FWH_SEL1 */
fwh_conf = pci_read_long(dev, 0xd0);
for (i = 7; i >= 0; i--) {
tmp = (fwh_conf >> (i * 4)) & 0xf;
msg_pdbg("\n0x%08x/0x%08x FWH IDSEL: 0x%x",
(0x1ff8 + i) * 0x80000,
(0x1ff0 + i) * 0x80000,
tmp);
if ((tmp == 0) && contiguous) {
max_decode_fwh_idsel = (8 - i) * 0x80000;
} else {
contiguous = 0;
}
}
/* FWH_SEL2 */
fwh_conf = pci_read_word(dev, 0xd4);
for (i = 3; i >= 0; i--) {
tmp = (fwh_conf >> (i * 4)) & 0xf;
msg_pdbg("\n0x%08x/0x%08x FWH IDSEL: 0x%x",
(0xff4 + i) * 0x100000,
(0xff0 + i) * 0x100000,
tmp);
if ((tmp == 0) && contiguous) {
max_decode_fwh_idsel = (8 - i) * 0x100000;
} else {
contiguous = 0;
}
}
contiguous = 1;
/* FWH_DEC_EN1 */
fwh_conf = pci_read_word(dev, 0xd8);
for (i = 7; i >= 0; i--) {
tmp = (fwh_conf >> (i + 0x8)) & 0x1;
msg_pdbg("\n0x%08x/0x%08x FWH decode %sabled",
(0x1ff8 + i) * 0x80000,
(0x1ff0 + i) * 0x80000,
tmp ? "en" : "dis");
if ((tmp == 1) && contiguous) {
max_decode_fwh_decode = (8 - i) * 0x80000;
} else {
contiguous = 0;
}
}
for (i = 3; i >= 0; i--) {
tmp = (fwh_conf >> i) & 0x1;
msg_pdbg("\n0x%08x/0x%08x FWH decode %sabled",
(0xff4 + i) * 0x100000,
(0xff0 + i) * 0x100000,
tmp ? "en" : "dis");
if ((tmp == 1) && contiguous) {
max_decode_fwh_decode = (8 - i) * 0x100000;
} else {
contiguous = 0;
}
}
max_rom_decode.fwh = min(max_decode_fwh_idsel, max_decode_fwh_decode);
msg_pdbg("\nMaximum FWH chip size: 0x%x bytes", max_rom_decode.fwh);
/* If we're called by enable_flash_ich_dc_spi, it will override
* buses_supported anyway.
*/
buses_supported = CHIP_BUSTYPE_FWH;
return enable_flash_ich(dev, name, 0xdc);
}
static int enable_flash_poulsbo(struct pci_dev *dev, const char *name)
{
uint16_t old, new;
int err;
if ((err = enable_flash_ich(dev, name, 0xd8)) != 0)
return err;
old = pci_read_byte(dev, 0xd9);
msg_pdbg("BIOS Prefetch Enable: %sabled, ",
(old & 1) ? "en" : "dis");
new = old & ~1;
if (new != old)
rpci_write_byte(dev, 0xd9, new);
buses_supported = CHIP_BUSTYPE_FWH;
return 0;
}
#define ICH_STRAP_RSVD 0x00
#define ICH_STRAP_SPI 0x01
#define ICH_STRAP_PCI 0x02
#define ICH_STRAP_LPC 0x03
static int enable_flash_vt8237s_spi(struct pci_dev *dev, const char *name)
{
/* Do we really need no write enable? */
return via_init_spi(dev);
}
static int enable_flash_ich_dc_spi(struct pci_dev *dev, const char *name,
int ich_generation)
{
int ret;
uint8_t bbs, buc;
uint32_t tmp, gcs;
void *rcrb;
//TODO: These names are incorrect for EP80579. For that, the solution would look like the commented line
//static const char *straps_names[] = {"SPI", "reserved", "reserved", "LPC" };
static const char *straps_names[] = { "reserved", "SPI", "PCI", "LPC" };
/* Enable Flash Writes */
ret = enable_flash_ich_dc(dev, name);
/* Get physical address of Root Complex Register Block */
tmp = pci_read_long(dev, 0xf0) & 0xffffc000;
msg_pdbg("\nRoot Complex Register Block address = 0x%x\n", tmp);
/* Map RCBA to virtual memory */
rcrb = physmap("ICH RCRB", tmp, 0x4000);
/* Set BBS (Boot BIOS Straps) field of GCS register. */
gcs = mmio_readl(rcrb + 0x3410);
if (target_bus == CHIP_BUSTYPE_LPC) {
msg_pdbg("Setting BBS to LPC\n");
gcs = (gcs & ~0xc00) | (0x3 << 10);
mmio_writel(gcs, rcrb + 0x3410);
} else if (target_bus == CHIP_BUSTYPE_SPI) {
msg_pdbg("Setting BBS to SPI\n");
gcs = (gcs & ~0xc00) | (0x1 << 10);
mmio_writel(gcs, rcrb + 0x3410);
}
msg_pdbg("GCS = 0x%x: ", gcs);
msg_pdbg("BIOS Interface Lock-Down: %sabled, ",
(gcs & 0x1) ? "en" : "dis");
bbs = (gcs >> 10) & 0x3;
msg_pdbg("BOOT BIOS Straps: 0x%x (%s)\n", bbs, straps_names[bbs]);
buc = mmio_readb(rcrb + 0x3414);
msg_pdbg("Top Swap : %s\n",
(buc & 1) ? "enabled (A16 inverted)" : "not enabled");
/* It seems the ICH7 does not support SPI and LPC chips at the same
* time. At least not with our current code. So we prevent searching
* on ICH7 when the southbridge is strapped to LPC
*/
buses_supported = CHIP_BUSTYPE_FWH;
if (ich_generation == 7) {
if(bbs == ICH_STRAP_LPC) {
/* No further SPI initialization required */
return ret;
}
else
/* Disable LPC/FWH if strapped to PCI or SPI */
buses_supported = 0;
}
/* this adds CHIP_BUSTYPE_SPI */
if (ich_init_spi(dev, tmp, rcrb, ich_generation) != 0) {
if (!ret)
ret = ERROR_NONFATAL;
}
return ret;
}
static int enable_flash_ich7(struct pci_dev *dev, const char *name)
{
return enable_flash_ich_dc_spi(dev, name, 7);
}
static int enable_flash_ich8(struct pci_dev *dev, const char *name)
{
return enable_flash_ich_dc_spi(dev, name, 8);
}
static int enable_flash_ich9(struct pci_dev *dev, const char *name)
{
return enable_flash_ich_dc_spi(dev, name, 9);
}
static int enable_flash_ich10(struct pci_dev *dev, const char *name)
{
return enable_flash_ich_dc_spi(dev, name, 10);
}
static int via_no_byte_merge(struct pci_dev *dev, const char *name)
{
uint8_t val;
val = pci_read_byte(dev, 0x71);
if (val & 0x40)
{
msg_pdbg("Disabling byte merging\n");
val &= ~0x40;
rpci_write_byte(dev, 0x71, val);
}
return NOT_DONE_YET; /* need to find south bridge, too */
}
static int enable_flash_vt823x(struct pci_dev *dev, const char *name)
{
uint8_t val;
/* enable ROM decode range (1MB) FFC00000 - FFFFFFFF */
rpci_write_byte(dev, 0x41, 0x7f);
/* ROM write enable */
val = pci_read_byte(dev, 0x40);
val |= 0x10;
rpci_write_byte(dev, 0x40, val);
if (pci_read_byte(dev, 0x40) != val) {
msg_perr("\nWARNING: Failed to enable flash write on \"%s\"\n",
name);
return -1;
}
if (dev->device_id == 0x3227) { /* VT8237R */
/* All memory cycles, not just ROM ones, go to LPC. */
val = pci_read_byte(dev, 0x59);
val &= ~0x80;
rpci_write_byte(dev, 0x59, val);
}
return 0;
}
static int enable_flash_cs5530(struct pci_dev *dev, const char *name)
{
uint8_t reg8;
#define DECODE_CONTROL_REG2 0x5b /* F0 index 0x5b */
#define ROM_AT_LOGIC_CONTROL_REG 0x52 /* F0 index 0x52 */
#define CS5530_RESET_CONTROL_REG 0x44 /* F0 index 0x44 */
#define CS5530_USB_SHADOW_REG 0x43 /* F0 index 0x43 */
#define LOWER_ROM_ADDRESS_RANGE (1 << 0)
#define ROM_WRITE_ENABLE (1 << 1)
#define UPPER_ROM_ADDRESS_RANGE (1 << 2)
#define BIOS_ROM_POSITIVE_DECODE (1 << 5)
#define CS5530_ISA_MASTER (1 << 7)
#define CS5530_ENABLE_SA2320 (1 << 2)
#define CS5530_ENABLE_SA20 (1 << 6)
buses_supported = CHIP_BUSTYPE_PARALLEL;
/* Decode 0x000E0000-0x000FFFFF (128 KB), not just 64 KB, and
* decode 0xFF000000-0xFFFFFFFF (16 MB), not just 256 KB.
* FIXME: Should we really touch the low mapping below 1 MB? Flashrom
* ignores that region completely.
* Make the configured ROM areas writable.
*/
reg8 = pci_read_byte(dev, ROM_AT_LOGIC_CONTROL_REG);
reg8 |= LOWER_ROM_ADDRESS_RANGE;
reg8 |= UPPER_ROM_ADDRESS_RANGE;
reg8 |= ROM_WRITE_ENABLE;
rpci_write_byte(dev, ROM_AT_LOGIC_CONTROL_REG, reg8);
/* Set positive decode on ROM. */
reg8 = pci_read_byte(dev, DECODE_CONTROL_REG2);
reg8 |= BIOS_ROM_POSITIVE_DECODE;
rpci_write_byte(dev, DECODE_CONTROL_REG2, reg8);
reg8 = pci_read_byte(dev, CS5530_RESET_CONTROL_REG);
if (reg8 & CS5530_ISA_MASTER) {
/* We have A0-A23 available. */
max_rom_decode.parallel = 16 * 1024 * 1024;
} else {
reg8 = pci_read_byte(dev, CS5530_USB_SHADOW_REG);
if (reg8 & CS5530_ENABLE_SA2320) {
/* We have A0-19, A20-A23 available. */
max_rom_decode.parallel = 16 * 1024 * 1024;
} else if (reg8 & CS5530_ENABLE_SA20) {
/* We have A0-19, A20 available. */
max_rom_decode.parallel = 2 * 1024 * 1024;
} else {
/* A20 and above are not active. */
max_rom_decode.parallel = 1024 * 1024;
}
}
return 0;
}
/*
* Geode systems write protect the BIOS via RCONFs (cache settings similar
* to MTRRs). To unlock, change MSR 0x1808 top byte to 0x22.
*
* Geode systems also write protect the NOR flash chip itself via MSR_NORF_CTL.
* To enable write to NOR Boot flash for the benefit of systems that have such
* a setup, raise MSR 0x51400018 WE_CS3 (write enable Boot Flash Chip Select).
*/
static int enable_flash_cs5536(struct pci_dev *dev, const char *name)
{
#define MSR_RCONF_DEFAULT 0x1808
#define MSR_NORF_CTL 0x51400018
msr_t msr;
/* Geode only has a single core */
if (setup_cpu_msr(0))
return -1;
msr = rdmsr(MSR_RCONF_DEFAULT);
if ((msr.hi >> 24) != 0x22) {
msr.hi &= 0xfbffffff;
wrmsr(MSR_RCONF_DEFAULT, msr);
}
msr = rdmsr(MSR_NORF_CTL);
/* Raise WE_CS3 bit. */
msr.lo |= 0x08;
wrmsr(MSR_NORF_CTL, msr);
cleanup_cpu_msr();
#undef MSR_RCONF_DEFAULT
#undef MSR_NORF_CTL
return 0;
}
static int enable_flash_sc1100(struct pci_dev *dev, const char *name)
{
uint8_t new;
rpci_write_byte(dev, 0x52, 0xee);
new = pci_read_byte(dev, 0x52);
if (new != 0xee) {
msg_perr("tried to set register 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x52, new, name);
return -1;
}
return 0;
}
/* Works for AMD-8111, VIA VT82C586A/B, VIA VT82C686A/B. */
static int enable_flash_amd8111(struct pci_dev *dev, const char *name)
{
uint8_t old, new;
/* Enable decoding at 0xffb00000 to 0xffffffff. */
old = pci_read_byte(dev, 0x43);
new = old | 0xC0;
if (new != old) {
rpci_write_byte(dev, 0x43, new);
if (pci_read_byte(dev, 0x43) != new) {
msg_perr("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x43, new, name);
}
}
/* Enable 'ROM write' bit. */
old = pci_read_byte(dev, 0x40);
new = old | 0x01;
if (new == old)
return 0;
rpci_write_byte(dev, 0x40, new);
if (pci_read_byte(dev, 0x40) != new) {
msg_perr("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x40, new, name);
return -1;
}
return 0;
}
static int enable_flash_sb600(struct pci_dev *dev, const char *name)
{
uint32_t prot;
uint8_t reg;
int ret;
/* Clear ROM protect 0-3. */
for (reg = 0x50; reg < 0x60; reg += 4) {
prot = pci_read_long(dev, reg);
/* No protection flags for this region?*/
if ((prot & 0x3) == 0)
continue;
msg_pinfo("SB600 %s%sprotected from 0x%08x to 0x%08x\n",
(prot & 0x1) ? "write " : "",
(prot & 0x2) ? "read " : "",
(prot & 0xfffff800),
(prot & 0xfffff800) + (((prot & 0x7fc) << 8) | 0x3ff));
prot &= 0xfffffffc;
rpci_write_byte(dev, reg, prot);
prot = pci_read_long(dev, reg);
if (prot & 0x3)
msg_perr("SB600 %s%sunprotect failed from 0x%08x to 0x%08x\n",
(prot & 0x1) ? "write " : "",
(prot & 0x2) ? "read " : "",
(prot & 0xfffff800),
(prot & 0xfffff800) + (((prot & 0x7fc) << 8) | 0x3ff));
}
buses_supported = CHIP_BUSTYPE_LPC | CHIP_BUSTYPE_FWH;
ret = sb600_probe_spi(dev);
/* Read ROM strap override register. */
OUTB(0x8f, 0xcd6);
reg = INB(0xcd7);
reg &= 0x0e;
msg_pdbg("ROM strap override is %sactive", (reg & 0x02) ? "" : "not ");
if (reg & 0x02) {
switch ((reg & 0x0c) >> 2) {
case 0x00:
msg_pdbg(": LPC");
break;
case 0x01:
msg_pdbg(": PCI");
break;
case 0x02:
msg_pdbg(": FWH");
break;
case 0x03:
msg_pdbg(": SPI");
break;
}
}
msg_pdbg("\n");
/* Force enable SPI ROM in SB600 PM register.
* If we enable SPI ROM here, we have to disable it after we leave.
* But how can we know which ROM we are going to handle? So we have
* to trade off. We only access LPC ROM if we boot via LPC ROM. And
* only SPI ROM if we boot via SPI ROM. If you want to access SPI on
* boards with LPC straps, you have to use the code below.
*/
/*
OUTB(0x8f, 0xcd6);
OUTB(0x0e, 0xcd7);
*/
return ret;
}
static int enable_flash_nvidia_nforce2(struct pci_dev *dev, const char *name)
{
uint8_t tmp;
rpci_write_byte(dev, 0x92, 0);
tmp = pci_read_byte(dev, 0x6d);
tmp |= 0x01;
rpci_write_byte(dev, 0x6d, tmp);
return 0;
}
static int enable_flash_ck804(struct pci_dev *dev, const char *name)
{
uint8_t old, new;
old = pci_read_byte(dev, 0x88);
new = old | 0xc0;
if (new != old) {
rpci_write_byte(dev, 0x88, new);
if (pci_read_byte(dev, 0x88) != new) {
msg_perr("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x88, new, name);
}
}
old = pci_read_byte(dev, 0x6d);
new = old | 0x01;
if (new == old)
return 0;
rpci_write_byte(dev, 0x6d, new);
if (pci_read_byte(dev, 0x6d) != new) {
msg_perr("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x6d, new, name);
return -1;
}
return 0;
}
static int enable_flash_osb4(struct pci_dev *dev, const char *name)
{
uint8_t tmp;
buses_supported = CHIP_BUSTYPE_PARALLEL;
tmp = INB(0xc06);
tmp |= 0x1;
OUTB(tmp, 0xc06);
tmp = INB(0xc6f);
tmp |= 0x40;
OUTB(tmp, 0xc6f);
return 0;
}
/* ATI Technologies Inc IXP SB400 PCI-ISA Bridge (rev 80) */
static int enable_flash_sb400(struct pci_dev *dev, const char *name)
{
uint8_t tmp;
struct pci_dev *smbusdev;
/* Look for the SMBus device. */
smbusdev = pci_dev_find(0x1002, 0x4372);
if (!smbusdev) {
msg_perr("ERROR: SMBus device not found. Aborting.\n");
exit(1);
}
/* Enable some SMBus stuff. */
tmp = pci_read_byte(smbusdev, 0x79);
tmp |= 0x01;
rpci_write_byte(smbusdev, 0x79, tmp);
/* Change southbridge. */
tmp = pci_read_byte(dev, 0x48);
tmp |= 0x21;
rpci_write_byte(dev, 0x48, tmp);
/* Now become a bit silly. */
tmp = INB(0xc6f);
OUTB(tmp, 0xeb);
OUTB(tmp, 0xeb);
tmp |= 0x40;
OUTB(tmp, 0xc6f);
OUTB(tmp, 0xeb);
OUTB(tmp, 0xeb);
return 0;
}
static int enable_flash_mcp55(struct pci_dev *dev, const char *name)
{
uint8_t old, new, val;
uint16_t wordval;
/* Set the 0-16 MB enable bits. */
val = pci_read_byte(dev, 0x88);
val |= 0xff; /* 256K */
rpci_write_byte(dev, 0x88, val);
val = pci_read_byte(dev, 0x8c);
val |= 0xff; /* 1M */
rpci_write_byte(dev, 0x8c, val);
wordval = pci_read_word(dev, 0x90);
wordval |= 0x7fff; /* 16M */
rpci_write_word(dev, 0x90, wordval);
old = pci_read_byte(dev, 0x6d);
new = old | 0x01;
if (new == old)
return 0;
rpci_write_byte(dev, 0x6d, new);
if (pci_read_byte(dev, 0x6d) != new) {
msg_perr("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", 0x6d, new, name);
return -1;
}
return 0;
}
/*
* The MCP6x/MCP7x code is based on cleanroom reverse engineering.
* It is assumed that LPC chips need the MCP55 code and SPI chips need the
* code provided in enable_flash_mcp6x_7x_common.
*/
static int enable_flash_mcp6x_7x(struct pci_dev *dev, const char *name)
{
int ret = 0;
int want_spi = 0;
uint8_t val;
msg_pinfo("This chipset is not really supported yet. Guesswork...\n");
/* dev is the ISA bridge. No idea what the stuff below does. */
val = pci_read_byte(dev, 0x8a);
msg_pdbg("ISA/LPC bridge reg 0x8a contents: 0x%02x, bit 6 is %i, bit 5 "
"is %i\n", val, (val >> 6) & 0x1, (val >> 5) & 0x1);
switch ((val >> 5) & 0x3) {
case 0x0:
ret = enable_flash_mcp55(dev, name);
buses_supported = CHIP_BUSTYPE_LPC;
msg_pdbg("Flash bus type is LPC\n");
break;
case 0x2:
want_spi = 1;
/* SPI is added in mcp6x_spi_init if it works.
* Do we really want to disable LPC in this case?
*/
buses_supported = CHIP_BUSTYPE_NONE;
msg_pdbg("Flash bus type is SPI\n");
msg_perr("SPI on this chipset is WIP. Write is unsupported!\n");
programmer_may_write = 0;
break;
default:
/* Should not happen. */
buses_supported = CHIP_BUSTYPE_NONE;
msg_pdbg("Flash bus type is unknown (none)\n");
msg_pinfo("Something went wrong with bus type detection.\n");
goto out_msg;
break;
}
/* Force enable SPI and disable LPC? Not a good idea. */
#if 0
val |= (1 << 6);
val &= ~(1 << 5);
rpci_write_byte(dev, 0x8a, val);
#endif
if (mcp6x_spi_init(want_spi)) {
ret = 1;
}
out_msg:
msg_pinfo("Please send the output of \"flashrom -V\" to "
"flashrom@flashrom.org with\n"
"your board name: flashrom -V as the subject to help us "
"finish support for your\n"
"chipset. Thanks.\n");
return ret;
}
static int enable_flash_ht1000(struct pci_dev *dev, const char *name)
{
uint8_t val;
/* Set the 4MB enable bit. */
val = pci_read_byte(dev, 0x41);
val |= 0x0e;
rpci_write_byte(dev, 0x41, val);
val = pci_read_byte(dev, 0x43);
val |= (1 << 4);
rpci_write_byte(dev, 0x43, val);
return 0;
}
/*
* Usually on the x86 architectures (and on other PC-like platforms like some
* Alphas or Itanium) the system flash is mapped right below 4G. On the AMD
* Elan SC520 only a small piece of the system flash is mapped there, but the
* complete flash is mapped somewhere below 1G. The position can be determined
* by the BOOTCS PAR register.
*/
static int get_flashbase_sc520(struct pci_dev *dev, const char *name)
{
int i, bootcs_found = 0;
uint32_t parx = 0;
void *mmcr;
/* 1. Map MMCR */
mmcr = physmap("Elan SC520 MMCR", 0xfffef000, getpagesize());
/* 2. Scan PAR0 (0x88) - PAR15 (0xc4) for
* BOOTCS region (PARx[31:29] = 100b)e
*/
for (i = 0x88; i <= 0xc4; i += 4) {
parx = mmio_readl(mmcr + i);
if ((parx >> 29) == 4) {
bootcs_found = 1;
break; /* BOOTCS found */
}
}
/* 3. PARx[25] = 1b --> flashbase[29:16] = PARx[13:0]
* PARx[25] = 0b --> flashbase[29:12] = PARx[17:0]
*/
if (bootcs_found) {
if (parx & (1 << 25)) {
parx &= (1 << 14) - 1; /* Mask [13:0] */
flashbase = parx << 16;
} else {
parx &= (1 << 18) - 1; /* Mask [17:0] */
flashbase = parx << 12;
}
} else {
msg_pinfo("AMD Elan SC520 detected, but no BOOTCS. Assuming flash at 4G\n");
}
/* 4. Clean up */
physunmap(mmcr, getpagesize());
return 0;
}
#endif
/* Please keep this list alphabetically sorted by vendor/device. */
const struct penable chipset_enables[] = {
#if defined(__i386__) || defined(__x86_64__)
{0x10B9, 0x1533, OK, "ALi", "M1533", enable_flash_ali_m1533},
{0x1022, 0x7440, OK, "AMD", "AMD-768", enable_flash_amd8111},
{0x1022, 0x7468, OK, "AMD", "AMD8111", enable_flash_amd8111},
{0x1078, 0x0100, OK, "AMD", "CS5530(A)", enable_flash_cs5530},
{0x1022, 0x2080, OK, "AMD", "CS5536", enable_flash_cs5536},
{0x1022, 0x2090, OK, "AMD", "CS5536", enable_flash_cs5536},
{0x1022, 0x3000, OK, "AMD", "Elan SC520", get_flashbase_sc520},
{0x1002, 0x438D, OK, "AMD", "SB600", enable_flash_sb600},
{0x1002, 0x439d, OK, "AMD", "SB700/SB710/SB750", enable_flash_sb600},
{0x100b, 0x0510, NT, "AMD", "SC1100", enable_flash_sc1100},
{0x1002, 0x4377, OK, "ATI", "SB400", enable_flash_sb400},
{0x1166, 0x0200, OK, "Broadcom", "OSB4", enable_flash_osb4},
{0x1166, 0x0205, OK, "Broadcom", "HT-1000", enable_flash_ht1000},
{0x8086, 0x3b00, NT, "Intel", "3400 Desktop", enable_flash_ich10},
{0x8086, 0x3b01, NT, "Intel", "3400 Mobile", enable_flash_ich10},
{0x8086, 0x3b02, NT, "Intel", "P55", enable_flash_ich10},
{0x8086, 0x3b03, NT, "Intel", "PM55", enable_flash_ich10},
{0x8086, 0x3b06, NT, "Intel", "H55", enable_flash_ich10},
{0x8086, 0x3b07, OK, "Intel", "QM57", enable_flash_ich10},
{0x8086, 0x3b08, NT, "Intel", "H57", enable_flash_ich10},
{0x8086, 0x3b09, NT, "Intel", "HM55", enable_flash_ich10},
{0x8086, 0x3b0a, NT, "Intel", "Q57", enable_flash_ich10},
{0x8086, 0x3b0b, NT, "Intel", "HM57", enable_flash_ich10},
{0x8086, 0x3b0d, NT, "Intel", "3400 Mobile SFF", enable_flash_ich10},
{0x8086, 0x3b0e, NT, "Intel", "B55", enable_flash_ich10},
{0x8086, 0x3b0f, NT, "Intel", "QS57", enable_flash_ich10},
{0x8086, 0x3b12, NT, "Intel", "3400", enable_flash_ich10},
{0x8086, 0x3b14, NT, "Intel", "3420", enable_flash_ich10},
{0x8086, 0x3b16, NT, "Intel", "3450", enable_flash_ich10},
{0x8086, 0x3b1e, NT, "Intel", "B55", enable_flash_ich10},
{0x8086, 0x7198, OK, "Intel", "440MX", enable_flash_piix4},
{0x8086, 0x25a1, OK, "Intel", "6300ESB", enable_flash_ich_4e},
{0x8086, 0x2670, OK, "Intel", "631xESB/632xESB/3100", enable_flash_ich_dc},
{0x8086, 0x5031, OK, "Intel", "EP80579", enable_flash_ich7},
{0x8086, 0x2420, OK, "Intel", "ICH0", enable_flash_ich_4e},
{0x8086, 0x3a18, OK, "Intel", "ICH10", enable_flash_ich10},
{0x8086, 0x3a1a, OK, "Intel", "ICH10D", enable_flash_ich10},
{0x8086, 0x3a14, OK, "Intel", "ICH10DO", enable_flash_ich10},
{0x8086, 0x3a16, OK, "Intel", "ICH10R", enable_flash_ich10},
{0x8086, 0x2440, OK, "Intel", "ICH2", enable_flash_ich_4e},
{0x8086, 0x244c, OK, "Intel", "ICH2-M", enable_flash_ich_4e},
{0x8086, 0x248c, OK, "Intel", "ICH3-M", enable_flash_ich_4e},
{0x8086, 0x2480, OK, "Intel", "ICH3-S", enable_flash_ich_4e},
{0x8086, 0x24c0, OK, "Intel", "ICH4/ICH4-L", enable_flash_ich_4e},
{0x8086, 0x24cc, OK, "Intel", "ICH4-M", enable_flash_ich_4e},
{0x8086, 0x24d0, OK, "Intel", "ICH5/ICH5R", enable_flash_ich_4e},
{0x8086, 0x2640, OK, "Intel", "ICH6/ICH6R", enable_flash_ich_dc},
{0x8086, 0x2641, OK, "Intel", "ICH6-M", enable_flash_ich_dc},
{0x8086, 0x27b0, OK, "Intel", "ICH7DH", enable_flash_ich7},
{0x8086, 0x27b8, OK, "Intel", "ICH7/ICH7R", enable_flash_ich7},
{0x8086, 0x27b9, OK, "Intel", "ICH7M", enable_flash_ich7},
{0x8086, 0x27bd, OK, "Intel", "ICH7MDH", enable_flash_ich7},
{0x8086, 0x27bc, OK, "Intel", "NM10", enable_flash_ich7},
{0x8086, 0x2410, OK, "Intel", "ICH", enable_flash_ich_4e},
{0x8086, 0x2812, OK, "Intel", "ICH8DH", enable_flash_ich8},
{0x8086, 0x2814, OK, "Intel", "ICH8DO", enable_flash_ich8},
{0x8086, 0x2810, OK, "Intel", "ICH8/ICH8R", enable_flash_ich8},
{0x8086, 0x2815, OK, "Intel", "ICH8M", enable_flash_ich8},
{0x8086, 0x2811, OK, "Intel", "ICH8M-E", enable_flash_ich8},
{0x8086, 0x2918, OK, "Intel", "ICH9", enable_flash_ich9},
{0x8086, 0x2912, OK, "Intel", "ICH9DH", enable_flash_ich9},
{0x8086, 0x2914, OK, "Intel", "ICH9DO", enable_flash_ich9},
{0x8086, 0x2919, OK, "Intel", "ICH9M", enable_flash_ich9},
{0x8086, 0x2917, OK, "Intel", "ICH9M-E", enable_flash_ich9},
{0x8086, 0x2916, OK, "Intel", "ICH9R", enable_flash_ich9},
{0x8086, 0x2910, OK, "Intel", "ICH9 Engineering Sample", enable_flash_ich9},
{0x8086, 0x1234, NT, "Intel", "MPIIX", enable_flash_piix4},
{0x8086, 0x7000, OK, "Intel", "PIIX3", enable_flash_piix4},
{0x8086, 0x7110, OK, "Intel", "PIIX4/4E/4M", enable_flash_piix4},
{0x8086, 0x122e, OK, "Intel", "PIIX", enable_flash_piix4},
{0x8086, 0x8119, OK, "Intel", "Poulsbo", enable_flash_poulsbo},
{0x10de, 0x0030, OK, "NVIDIA", "nForce4/MCP4", enable_flash_nvidia_nforce2},
{0x10de, 0x0050, OK, "NVIDIA", "CK804", enable_flash_ck804}, /* LPC */
{0x10de, 0x0051, OK, "NVIDIA", "CK804", enable_flash_ck804}, /* Pro */
{0x10de, 0x0060, OK, "NVIDIA", "NForce2", enable_flash_nvidia_nforce2},
{0x10de, 0x00e0, OK, "NVIDIA", "NForce3", enable_flash_nvidia_nforce2},
/* Slave, should not be here, to fix known bug for A01. */
{0x10de, 0x00d3, OK, "NVIDIA", "CK804", enable_flash_ck804},
{0x10de, 0x0260, NT, "NVIDIA", "MCP51", enable_flash_ck804},
{0x10de, 0x0261, NT, "NVIDIA", "MCP51", enable_flash_ck804},
{0x10de, 0x0262, NT, "NVIDIA", "MCP51", enable_flash_ck804},
{0x10de, 0x0263, NT, "NVIDIA", "MCP51", enable_flash_ck804},
{0x10de, 0x0360, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* M57SLI*/
/* 10de:0361 is present in Tyan S2915 OEM systems, but not connected to
* the flash chip. Instead, 10de:0364 is connected to the flash chip.
* Until we have PCI device class matching or some fallback mechanism,
* this is needed to get flashrom working on Tyan S2915 and maybe other
* dual-MCP55 boards.
*/
#if 0
{0x10de, 0x0361, NT, "NVIDIA", "MCP55", enable_flash_mcp55}, /* LPC */
#endif
{0x10de, 0x0362, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* LPC */
{0x10de, 0x0363, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* LPC */
{0x10de, 0x0364, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* LPC */
{0x10de, 0x0365, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* LPC */
{0x10de, 0x0366, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* LPC */
{0x10de, 0x0367, OK, "NVIDIA", "MCP55", enable_flash_mcp55}, /* Pro */
{0x10de, 0x03e0, NT, "NVIDIA", "MCP61", enable_flash_mcp6x_7x},
{0x10de, 0x03e1, NT, "NVIDIA", "MCP61", enable_flash_mcp6x_7x},
{0x10de, 0x03e2, NT, "NVIDIA", "MCP61", enable_flash_mcp6x_7x},
{0x10de, 0x03e3, NT, "NVIDIA", "MCP61", enable_flash_mcp6x_7x},
{0x10de, 0x0440, NT, "NVIDIA", "MCP65", enable_flash_mcp6x_7x},
{0x10de, 0x0441, NT, "NVIDIA", "MCP65", enable_flash_mcp6x_7x},
{0x10de, 0x0442, NT, "NVIDIA", "MCP65", enable_flash_mcp6x_7x},
{0x10de, 0x0443, NT, "NVIDIA", "MCP65", enable_flash_mcp6x_7x},
{0x10de, 0x0548, OK, "NVIDIA", "MCP67", enable_flash_mcp6x_7x},
{0x10de, 0x075c, NT, "NVIDIA", "MCP78S", enable_flash_mcp6x_7x},
{0x10de, 0x075d, NT, "NVIDIA", "MCP78S", enable_flash_mcp6x_7x},
{0x10de, 0x07d7, NT, "NVIDIA", "MCP73", enable_flash_mcp6x_7x},
{0x10de, 0x0aac, NT, "NVIDIA", "MCP79", enable_flash_mcp6x_7x},
{0x10de, 0x0aad, NT, "NVIDIA", "MCP79", enable_flash_mcp6x_7x},
{0x10de, 0x0aae, NT, "NVIDIA", "MCP79", enable_flash_mcp6x_7x},
{0x10de, 0x0aaf, NT, "NVIDIA", "MCP79", enable_flash_mcp6x_7x},
{0x1039, 0x0496, NT, "SiS", "85C496+497", enable_flash_sis85c496},
{0x1039, 0x0406, NT, "SiS", "501/5101/5501", enable_flash_sis501},
{0x1039, 0x5511, NT, "SiS", "5511", enable_flash_sis5511},
{0x1039, 0x5596, NT, "SiS", "5596", enable_flash_sis5511},
{0x1039, 0x5571, NT, "SiS", "5571", enable_flash_sis530},
{0x1039, 0x5591, NT, "SiS", "5591/5592", enable_flash_sis530},
{0x1039, 0x5597, NT, "SiS", "5597/5598/5581/5120", enable_flash_sis530},
{0x1039, 0x0530, NT, "SiS", "530", enable_flash_sis530},
{0x1039, 0x5600, NT, "SiS", "600", enable_flash_sis530},
{0x1039, 0x0620, NT, "SiS", "620", enable_flash_sis530},
{0x1039, 0x0540, NT, "SiS", "540", enable_flash_sis540},
{0x1039, 0x0630, NT, "SiS", "630", enable_flash_sis540},
{0x1039, 0x0635, NT, "SiS", "635", enable_flash_sis540},
{0x1039, 0x0640, NT, "SiS", "640", enable_flash_sis540},
{0x1039, 0x0645, NT, "SiS", "645", enable_flash_sis540},
{0x1039, 0x0646, NT, "SiS", "645DX", enable_flash_sis540},
{0x1039, 0x0648, NT, "SiS", "648", enable_flash_sis540},
{0x1039, 0x0650, NT, "SiS", "650", enable_flash_sis540},
{0x1039, 0x0651, NT, "SiS", "651", enable_flash_sis540},
{0x1039, 0x0655, NT, "SiS", "655", enable_flash_sis540},
{0x1039, 0x0661, OK, "SiS", "661", enable_flash_sis540},
{0x1039, 0x0730, NT, "SiS", "730", enable_flash_sis540},
{0x1039, 0x0733, NT, "SiS", "733", enable_flash_sis540},
{0x1039, 0x0735, OK, "SiS", "735", enable_flash_sis540},
{0x1039, 0x0740, NT, "SiS", "740", enable_flash_sis540},
{0x1039, 0x0741, OK, "SiS", "741", enable_flash_sis540},
{0x1039, 0x0745, OK, "SiS", "745", enable_flash_sis540},
{0x1039, 0x0746, NT, "SiS", "746", enable_flash_sis540},
{0x1039, 0x0748, NT, "SiS", "748", enable_flash_sis540},
{0x1039, 0x0755, NT, "SiS", "755", enable_flash_sis540},
/* VIA northbridges */
{0x1106, 0x0585, NT, "VIA", "VT82C585VPX", via_no_byte_merge},
{0x1106, 0x0595, NT, "VIA", "VT82C595", via_no_byte_merge},
{0x1106, 0x0597, NT, "VIA", "VT82C597", via_no_byte_merge},
{0x1106, 0x0691, NT, "VIA", "VT82C69x", via_no_byte_merge}, /* 691, 693a, 694t, 694x checked */
{0x1106, 0x0601, NT, "VIA", "VT8601/VT8601A", via_no_byte_merge},
{0x1106, 0x8601, NT, "VIA", "VT8601T", via_no_byte_merge},
/* VIA southbridges */
{0x1106, 0x8324, OK, "VIA", "CX700", enable_flash_vt823x},
{0x1106, 0x8231, NT, "VIA", "VT8231", enable_flash_vt823x},
{0x1106, 0x3074, NT, "VIA", "VT8233", enable_flash_vt823x},
{0x1106, 0x3147, OK, "VIA", "VT8233A", enable_flash_vt823x},
{0x1106, 0x3177, OK, "VIA", "VT8235", enable_flash_vt823x},
{0x1106, 0x3227, OK, "VIA", "VT8237", enable_flash_vt823x},
{0x1106, 0x3337, OK, "VIA", "VT8237A", enable_flash_vt823x},
{0x1106, 0x3372, OK, "VIA", "VT8237S", enable_flash_vt8237s_spi},
{0x1106, 0x8353, OK, "VIA", "VX800", enable_flash_vt8237s_spi},
{0x1106, 0x0596, OK, "VIA", "VT82C596", enable_flash_amd8111},
{0x1106, 0x0586, OK, "VIA", "VT82C586A/B", enable_flash_amd8111},
{0x1106, 0x0686, NT, "VIA", "VT82C686A/B", enable_flash_amd8111},
#endif
{},
};
int chipset_flash_enable(void)
{
struct pci_dev *dev = NULL;
int ret = -2; /* Nothing! */
int i;
/* Now let's try to find the chipset we have... */
for (i = 0; chipset_enables[i].vendor_name != NULL; i++) {
dev = pci_dev_find(chipset_enables[i].vendor_id,
chipset_enables[i].device_id);
if (!dev)
continue;
if (ret != -2) {
msg_pinfo("WARNING: unexpected second chipset match: "
"\"%s %s\"\n"
"ignoring, please report lspci and board URL "
"to flashrom@flashrom.org\n"
"with 2CHIPSET: your board name in the "
"subject line.\n",
chipset_enables[i].vendor_name,
chipset_enables[i].device_name);
continue;
}
msg_pdbg("Found chipset \"%s %s\", enabling flash write... ",
chipset_enables[i].vendor_name,
chipset_enables[i].device_name);
msg_pdbg("chipset PCI ID is %04x:%04x, ",
chipset_enables[i].vendor_id,
chipset_enables[i].device_id);
ret = chipset_enables[i].doit(dev,
chipset_enables[i].device_name);
if (ret == NOT_DONE_YET) {
ret = -2;
msg_pdbg("OK - searching further chips.\n");
} else if (ret < 0)
msg_perr("Unable to enable flash write\n");
else if(ret == 0)
msg_pdbg("OK.\n");
else if(ret == ERROR_NONFATAL)
msg_pinfo("PROBLEMS, continuing anyway\n");
}
msg_pdbg("This chipset supports the following protocols: %s.\n",
flashbuses_to_text(buses_supported));
return ret;
}
int get_target_bus_from_chipset(enum chipbustype *bus)
{
int i;
struct pci_dev *dev = 0;
uint32_t tmp, gcs;
void *rcrb;
int ret = -1; /* not found */
for (i = 0; chipset_enables[i].vendor_name != NULL; i++) {
dev = pci_dev_find(chipset_enables[i].vendor_id,
chipset_enables[i].device_id);
if (!dev)
continue;
/* Get physical address of Root Complex Register Block */
tmp = pci_read_long(dev, 0xf0) & 0xffffc000;
msg_pdbg("\nRoot Complex Register Block address = 0x%x\n", tmp);
/* Map RCBA to virtual memory */
rcrb = physmap("ICH RCRB", tmp, 0x4000);
/* Set BBS (Boot BIOS Straps) field of GCS register. */
gcs = mmio_readl(rcrb + 0x3410);
switch ((gcs & 0xc00) >> 10) {
case 0x1:
*bus = CHIP_BUSTYPE_SPI;
break;
case 0x3:
*bus = CHIP_BUSTYPE_LPC;
break;
default:
*bus = CHIP_BUSTYPE_UNKNOWN;
ret = -2; /* unknown bus type. */
break;
}
ret = 0;
break;
/* For unexpected second device, the chipset_flash_enable()
has shown the warning message. */
}
return ret;
}