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05976c7e93
This patch moves all the declarations relevant to PCI into their own header in include/pcidev.h This is a simple refactor that aims to simplify maintenance and to clarify file dependency inside the project. Currently, most of the declarations reside in programmer.h making it difficult to really understand file dependency. Change-Id: Ie7cefa012d43e03d2d3886f1567ad9b3fe1b148c Signed-off-by: Antonio Vázquez Blanco <antoniovazquezblanco@gmail.com> Reviewed-on: https://review.coreboot.org/c/flashrom/+/89094 Reviewed-by: Anastasia Klimchuk <aklm@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
120 lines
3.1 KiB
C
120 lines
3.1 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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#include <stdlib.h>
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#include "flash.h"
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#include "programmer.h"
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#include "hwaccess_physmap.h"
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#include "pcidev.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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struct drkaiser_data {
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struct pci_dev *dev;
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uint8_t *bar;
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uint16_t flash_access;
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};
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static 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 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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struct drkaiser_data *data = flash->mst->par.data;
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pci_mmio_writeb(val, data->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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struct drkaiser_data *data = flash->mst->par.data;
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return pci_mmio_readb(data->bar + (addr & DRKAISER_MEMMAP_MASK));
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}
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static int drkaiser_shutdown(void *par_data)
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{
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struct drkaiser_data *data = par_data;
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/* Restore original flash writing state. */
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pci_write_word(data->dev, PCI_MAGIC_DRKAISER_ADDR, data->flash_access);
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free(par_data);
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return 0;
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}
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static const struct par_master par_master_drkaiser = {
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.chip_readb = drkaiser_chip_readb,
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.chip_writeb = drkaiser_chip_writeb,
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.shutdown = drkaiser_shutdown,
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};
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static int drkaiser_init(const struct programmer_cfg *cfg)
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{
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struct pci_dev *dev = NULL;
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uint32_t addr;
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uint8_t *bar;
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dev = pcidev_init(cfg, drkaiser_pcidev, PCI_BASE_ADDRESS_2);
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if (!dev)
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return 1;
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addr = pcidev_readbar(dev, PCI_BASE_ADDRESS_2);
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if (!addr)
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return 1;
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/* Map 128kB flash memory window. */
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bar = rphysmap("Dr. Kaiser PC-Waechter flash memory", addr, DRKAISER_MEMMAP_SIZE);
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if (bar == ERROR_PTR)
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return 1;
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struct drkaiser_data *data = calloc(1, sizeof(*data));
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if (!data) {
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msg_perr("Unable to allocate space for PAR master data\n");
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return 1;
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}
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data->dev = dev;
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data->bar = bar;
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/* Write magic register to enable flash write. */
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data->flash_access = pci_read_word(dev, PCI_MAGIC_DRKAISER_ADDR);
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pci_write_word(dev, PCI_MAGIC_DRKAISER_ADDR, PCI_MAGIC_DRKAISER_VALUE);
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max_rom_decode.parallel = 128 * 1024;
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return register_par_master(&par_master_drkaiser, BUS_PARALLEL, data);
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}
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const struct programmer_entry programmer_drkaiser = {
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.name = "drkaiser",
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.type = PCI,
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.devs.dev = drkaiser_pcidev,
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.init = drkaiser_init,
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};
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