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/*
* This file is part of the flashrom project.
*
* Copyright (C) 2009 Joerg Fischer <turboj@gmx.de>
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <stdlib.h>
#include "flash.h"
#include "programmer.h"
#include "hwaccess_x86_io.h"
#include "platform/pci.h"
#define PCI_VENDOR_ID_REALTEK 0x10ec
#define PCI_VENDOR_ID_SMC1211 0x1113
struct nicrealtek_data {
uint32_t io_base_addr;
int bios_rom_addr;
int bios_rom_data;
};
static const struct dev_entry nics_realtek[] = {
{0x10ec, 0x8139, OK, "Realtek", "RTL8139/8139C/8139C+"},
{0x10ec, 0x8169, NT, "Realtek", "RTL8169"},
{0x1113, 0x1211, OK, "SMC", "1211TX"}, /* RTL8139 clone */
{0},
};
static void nicrealtek_chip_writeb(const struct flashctx *flash, uint8_t val, chipaddr addr)
{
struct nicrealtek_data *data = flash->mst->par.data;
/* Output addr and data, set WE to 0, set OE to 1, set CS to 0,
* enable software access.
*/
OUTL(((uint32_t)addr & 0x01FFFF) | 0x0A0000 | (val << 24),
data->io_base_addr + data->bios_rom_addr);
/* Output addr and data, set WE to 1, set OE to 1, set CS to 1,
* enable software access.
*/
OUTL(((uint32_t)addr & 0x01FFFF) | 0x1E0000 | (val << 24),
data->io_base_addr + data->bios_rom_addr);
}
static uint8_t nicrealtek_chip_readb(const struct flashctx *flash, const chipaddr addr)
{
struct nicrealtek_data *data = flash->mst->par.data;
uint8_t val;
/* FIXME: Can we skip reading the old data and simply use 0? */
/* Read old data. */
val = INB(data->io_base_addr + data->bios_rom_data);
/* Output new addr and old data, set WE to 1, set OE to 0, set CS to 0,
* enable software access.
*/
OUTL(((uint32_t)addr & 0x01FFFF) | 0x060000 | (val << 24),
data->io_base_addr + data->bios_rom_addr);
/* Read new data. */
val = INB(data->io_base_addr + data->bios_rom_data);
/* Output addr and new data, set WE to 1, set OE to 1, set CS to 1,
* enable software access.
*/
OUTL(((uint32_t)addr & 0x01FFFF) | 0x1E0000 | (val << 24),
data->io_base_addr + data->bios_rom_addr);
return val;
}
static int nicrealtek_shutdown(void *data)
{
/* FIXME: We forgot to disable software access again. */
free(data);
return 0;
}
static const struct par_master par_master_nicrealtek = {
.chip_readb = nicrealtek_chip_readb,
.chip_writeb = nicrealtek_chip_writeb,
.shutdown = nicrealtek_shutdown,
};
static int nicrealtek_init(const struct programmer_cfg *cfg)
{
struct pci_dev *dev = NULL;
uint32_t io_base_addr = 0;
int bios_rom_addr;
int bios_rom_data;
if (rget_io_perms())
return 1;
dev = pcidev_init(cfg, nics_realtek, PCI_BASE_ADDRESS_0);
if (!dev)
return 1;
io_base_addr = pcidev_readbar(dev, PCI_BASE_ADDRESS_0);
if (!io_base_addr)
return 1;
/* Beware, this ignores the vendor ID! */
switch (dev->device_id) {
case 0x8139: /* RTL8139 */
case 0x1211: /* SMC 1211TX */
default:
bios_rom_addr = 0xD4;
bios_rom_data = 0xD7;
break;
case 0x8169: /* RTL8169 */
bios_rom_addr = 0x30;
bios_rom_data = 0x33;
break;
}
struct nicrealtek_data *data = calloc(1, sizeof(*data));
if (!data) {
msg_perr("Unable to allocate space for PAR master data\n");
return 1;
}
data->io_base_addr = io_base_addr;
data->bios_rom_addr = bios_rom_addr;
data->bios_rom_data = bios_rom_data;
return register_par_master(&par_master_nicrealtek, BUS_PARALLEL, data);
}
const struct programmer_entry programmer_nicrealtek = {
.name = "nicrealtek",
.type = PCI,
.devs.dev = nics_realtek,
.init = nicrealtek_init,
};
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