mirror of
https://review.coreboot.org/flashrom.git
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5561955b11
Previously the internal programmer used its own code to initialize pcilib. This patch extracts the common code from the internal programmer and pcidev_init() into pcidev_init_common(). This fixes the non-existent PCI cleanup of the internal programmer and adds an additional safety by checking for an already existing PCI context. We got a nice shutdown function registration infrastructure, but did not use it very wisely. Instead we added shutdown functions to a myriad of programmers unnecessarily. In this patch we get rid of those that do only call pci_cleanup(pacc) by adding a shutdown function the pcidev.c itself that gets registered by pcidev_init(). Corresponding to flashrom svn r1642. Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
103 lines
3.0 KiB
C
103 lines
3.0 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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#include "programmer.h"
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#include "hwaccess.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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#define DRKAISER_MEMMAP_SIZE (1024 * 128)
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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 dev_entry drkaiser_pcidev[] = {
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{0x1803, 0x5057, OK, "Dr. Kaiser", "PC-Waechter (Actel FPGA)"},
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{0},
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};
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static uint8_t *drkaiser_bar;
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static void drkaiser_chip_writeb(const struct flashctx *flash, uint8_t val,
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chipaddr addr);
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static uint8_t drkaiser_chip_readb(const struct flashctx *flash,
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const chipaddr addr);
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static const struct par_programmer par_programmer_drkaiser = {
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.chip_readb = drkaiser_chip_readb,
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.chip_readw = fallback_chip_readw,
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.chip_readl = fallback_chip_readl,
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.chip_readn = fallback_chip_readn,
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.chip_writeb = drkaiser_chip_writeb,
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.chip_writew = fallback_chip_writew,
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.chip_writel = fallback_chip_writel,
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.chip_writen = fallback_chip_writen,
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};
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static int drkaiser_shutdown(void *data)
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{
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physunmap(drkaiser_bar, DRKAISER_MEMMAP_SIZE);
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return 0;
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}
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int drkaiser_init(void)
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{
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uint32_t addr;
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if (rget_io_perms())
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return 1;
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/* No need to check for errors, pcidev_init() will not return in case of errors. */
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addr = pcidev_init(PCI_BASE_ADDRESS_2, drkaiser_pcidev);
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/* Write magic register to enable flash write. */
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rpci_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, DRKAISER_MEMMAP_SIZE);
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if (register_shutdown(drkaiser_shutdown, NULL))
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return 1;
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max_rom_decode.parallel = 128 * 1024;
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register_par_programmer(&par_programmer_drkaiser, BUS_PARALLEL);
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return 0;
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}
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static void drkaiser_chip_writeb(const struct flashctx *flash, uint8_t val,
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chipaddr addr)
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{
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pci_mmio_writeb(val, drkaiser_bar + (addr & DRKAISER_MEMMAP_MASK));
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}
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static uint8_t drkaiser_chip_readb(const struct flashctx *flash,
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const chipaddr addr)
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{
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return pci_mmio_readb(drkaiser_bar + (addr & DRKAISER_MEMMAP_MASK));
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}
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