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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.
*
* 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
*/
#include <stdlib.h>
#include "flash.h"
#include "programmer.h"
#include "hwaccess.h"
static uint8_t *it8212_bar = NULL;
#define PCI_VENDOR_ID_ITE 0x1283
const struct dev_entry devs_it8212[] = {
{PCI_VENDOR_ID_ITE, 0x8212, OK, "ITE", "8212F PATA RAID"},
{},
};
#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);
static uint8_t it8212_chip_readb(const struct flashctx *flash, const chipaddr addr);
static const struct par_programmer par_programmer_it8212 = {
.chip_readb = it8212_chip_readb,
.chip_readw = fallback_chip_readw,
.chip_readl = fallback_chip_readl,
.chip_readn = fallback_chip_readn,
.chip_writeb = it8212_chip_writeb,
.chip_writew = fallback_chip_writew,
.chip_writel = fallback_chip_writel,
.chip_writen = fallback_chip_writen,
};
int it8212_init(void)
{
if (rget_io_perms())
return 1;
struct pci_dev *dev = pcidev_init(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;
it8212_bar = rphysmap("IT8212F flash", io_base_addr, IT8212_MEMMAP_SIZE);
if (it8212_bar == ERROR_PTR)
return 1;
/* Restore ROM BAR decode state automatically at shutdown. */
rpci_write_long(dev, PCI_ROM_ADDRESS, io_base_addr | 0x01);
max_rom_decode.parallel = IT8212_MEMMAP_SIZE;
register_par_programmer(&par_programmer_it8212, BUS_PARALLEL);
return 0;
}
static void it8212_chip_writeb(const struct flashctx *flash, uint8_t val, chipaddr addr)
{
pci_mmio_writeb(val, it8212_bar + (addr & IT8212_MEMMAP_MASK));
}
static uint8_t it8212_chip_readb(const struct flashctx *flash, const chipaddr addr)
{
return pci_mmio_readb(it8212_bar + (addr & IT8212_MEMMAP_MASK));
}
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