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fb2c4c3f72
Use the BAR value returned by pcidev_init which automatically applies the correct BAR mask for the drkaiser driver. Truncate flash chip addresses to fit into the 128 kB memory window for drkaiser and pick the same window size for gfxnvidia. Uwe tested all operations successfully on a Dr. Kaiser card. Corresponding to flashrom svn r1089. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
79 lines
2.1 KiB
C
79 lines
2.1 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2009 Joerg Fischer <turboj@web.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdlib.h>
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#include "flash.h"
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#define PCI_VENDOR_ID_DRKAISER 0x1803
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#define PCI_MAGIC_DRKAISER_ADDR 0x50
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#define PCI_MAGIC_DRKAISER_VALUE 0xa971
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/* Mask to restrict flash accesses to the 128kB memory window. */
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#define DRKAISER_MEMMAP_MASK ((1 << 17) - 1)
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const struct pcidev_status drkaiser_pcidev[] = {
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{0x1803, 0x5057, OK, "Dr. Kaiser", "PC-Waechter (Actel FPGA)"},
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{},
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};
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static uint8_t *drkaiser_bar;
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int drkaiser_init(void)
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{
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uint32_t addr;
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get_io_perms();
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addr = pcidev_init(PCI_VENDOR_ID_DRKAISER, PCI_BASE_ADDRESS_2,
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drkaiser_pcidev);
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/* Write magic register to enable flash write. */
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pci_write_word(pcidev_dev, PCI_MAGIC_DRKAISER_ADDR,
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PCI_MAGIC_DRKAISER_VALUE);
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/* Map 128KB flash memory window. */
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drkaiser_bar = physmap("Dr. Kaiser PC-Waechter flash memory",
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addr, 128 * 1024);
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buses_supported = CHIP_BUSTYPE_PARALLEL;
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return 0;
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}
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int drkaiser_shutdown(void)
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{
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/* Write protect the flash again. */
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pci_write_word(pcidev_dev, PCI_MAGIC_DRKAISER_ADDR, 0);
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pci_cleanup(pacc);
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release_io_perms();
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return 0;
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};
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void drkaiser_chip_writeb(uint8_t val, chipaddr addr)
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{
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mmio_writeb(val, drkaiser_bar + (addr & DRKAISER_MEMMAP_MASK));
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}
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uint8_t drkaiser_chip_readb(const chipaddr addr)
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{
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return mmio_readb(drkaiser_bar + (addr & DRKAISER_MEMMAP_MASK));
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}
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