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/*
* This file is part of the flashrom project.
*
* Copyright (C) 2009 Joerg Fischer <turboj@web.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.
*
* 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"
#define PCI_VENDOR_ID_DRKAISER 0x1803
#define PCI_MAGIC_DRKAISER_ADDR 0x50
#define PCI_MAGIC_DRKAISER_VALUE 0xa971
#define DRKAISER_MEMMAP_SIZE (1024 * 128)
/* Mask to restrict flash accesses to the 128kB memory window. */
#define DRKAISER_MEMMAP_MASK ((1 << 17) - 1)
const struct dev_entry drkaiser_pcidev[] = {
{0x1803, 0x5057, OK, "Dr. Kaiser", "PC-Waechter (Actel FPGA)"},
{0},
};
static uint8_t *drkaiser_bar;
static void drkaiser_chip_writeb(const struct flashctx *flash, uint8_t val,
chipaddr addr);
static uint8_t drkaiser_chip_readb(const struct flashctx *flash,
const chipaddr addr);
static const struct par_programmer par_programmer_drkaiser = {
.chip_readb = drkaiser_chip_readb,
.chip_readw = fallback_chip_readw,
.chip_readl = fallback_chip_readl,
.chip_readn = fallback_chip_readn,
.chip_writeb = drkaiser_chip_writeb,
.chip_writew = fallback_chip_writew,
.chip_writel = fallback_chip_writel,
.chip_writen = fallback_chip_writen,
};
static int drkaiser_shutdown(void *data)
{
physunmap(drkaiser_bar, DRKAISER_MEMMAP_SIZE);
return 0;
}
int drkaiser_init(void)
{
struct pci_dev *dev = NULL;
uint32_t addr;
if (rget_io_perms())
return 1;
dev = pcidev_init(drkaiser_pcidev, PCI_BASE_ADDRESS_2);
if (!dev)
return 1;
addr = pcidev_readbar(dev, PCI_BASE_ADDRESS_2);
/* Write magic register to enable flash write. */
rpci_write_word(dev, PCI_MAGIC_DRKAISER_ADDR, PCI_MAGIC_DRKAISER_VALUE);
/* Map 128kB flash memory window. */
drkaiser_bar = physmap("Dr. Kaiser PC-Waechter flash memory",
addr, DRKAISER_MEMMAP_SIZE);
if (register_shutdown(drkaiser_shutdown, NULL))
return 1;
max_rom_decode.parallel = 128 * 1024;
register_par_programmer(&par_programmer_drkaiser, BUS_PARALLEL);
return 0;
}
static void drkaiser_chip_writeb(const struct flashctx *flash, uint8_t val,
chipaddr addr)
{
pci_mmio_writeb(val, drkaiser_bar + (addr & DRKAISER_MEMMAP_MASK));
}
static uint8_t drkaiser_chip_readb(const struct flashctx *flash,
const chipaddr addr)
{
return pci_mmio_readb(drkaiser_bar + (addr & DRKAISER_MEMMAP_MASK));
}
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