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/*
* This file is part of the flashrom project.
*
* Copyright (C) 2011 Carl-Daniel Hailfinger
* Copyright (C) 2012 Kyösti Mälkki <kyosti.malkki@gmail.com>
*
* 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.
*/
#include <stdlib.h>
#include "flash.h"
#include "programmer.h"
#include "hwaccess_physmap.h"
#include "platform/pci.h"
struct it8212_data {
struct pci_dev *dev;
uint8_t *bar;
uint32_t decode_access;
};
#define PCI_VENDOR_ID_ITE 0x1283
static const struct dev_entry devs_it8212[] = {
{PCI_VENDOR_ID_ITE, 0x8212, NT, "ITE", "8212F PATA RAID"},
{0},
};
#define IT8212_MEMMAP_SIZE (128 * 1024)
#define IT8212_MEMMAP_MASK (IT8212_MEMMAP_SIZE - 1)
static void it8212_chip_writeb(const struct flashctx *flash, uint8_t val, chipaddr addr)
{
const struct it8212_data *data = flash->mst->par.data;
pci_mmio_writeb(val, data->bar + (addr & IT8212_MEMMAP_MASK));
}
static uint8_t it8212_chip_readb(const struct flashctx *flash, const chipaddr addr)
{
const struct it8212_data *data = flash->mst->par.data;
return pci_mmio_readb(data->bar + (addr & IT8212_MEMMAP_MASK));
}
static int it8212_shutdown(void *par_data)
{
struct it8212_data *data = par_data;
/* Restore ROM BAR decode state. */
pci_write_long(data->dev, PCI_ROM_ADDRESS, data->decode_access);
free(par_data);
return 0;
}
static const struct par_master par_master_it8212 = {
.chip_readb = it8212_chip_readb,
.chip_writeb = it8212_chip_writeb,
.shutdown = it8212_shutdown,
};
static int it8212_init(const struct programmer_cfg *cfg)
{
uint8_t *bar;
struct pci_dev *dev = pcidev_init(cfg, devs_it8212, PCI_ROM_ADDRESS);
if (!dev)
return 1;
/* Bit 0 is address decode enable, 17-31 the base address, everything else reserved/zero. */
uint32_t io_base_addr = pcidev_readbar(dev, PCI_ROM_ADDRESS) & 0xFFFFFFFE;
if (!io_base_addr)
return 1;
bar = rphysmap("IT8212F flash", io_base_addr, IT8212_MEMMAP_SIZE);
if (bar == ERROR_PTR)
return 1;
struct it8212_data *data = calloc(1, sizeof(*data));
if (!data) {
msg_perr("Unable to allocate space for PAR master data\n");
return 1;
}
data->dev = dev;
data->bar = bar;
/* Enable ROM BAR decoding. */
data->decode_access = pci_read_long(dev, PCI_ROM_ADDRESS);
pci_write_long(dev, PCI_ROM_ADDRESS, io_base_addr | 0x01);
max_rom_decode.parallel = IT8212_MEMMAP_SIZE;
return register_par_master(&par_master_it8212, BUS_PARALLEL, data);
}
const struct programmer_entry programmer_it8212 = {
.name = "it8212",
.type = PCI,
.devs.dev = devs_it8212,
.init = it8212_init,
};
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