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8403ccb49f
This is tested on hardware. Also, add initial support for the Atmel AT29C010A chip (which I inserted in a 3COM 3C90xB card for testing). It can be detected, read works, erase works, but write will need some additional code (will post in another patch later). Corresponding to flashrom svn r520. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
123 lines
3.5 KiB
C
123 lines
3.5 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 Uwe Hermann <uwe@hermann-uwe.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 <string.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include "flash.h"
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#define PCI_IO_BASE_ADDRESS 0x10
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uint32_t io_base_addr;
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struct pci_access *pacc;
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struct pci_filter filter;
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char *pcidev_bdf = NULL;
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struct pci_dev *pcidev_dev = NULL;
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uint32_t pcidev_validate(struct pci_dev *dev, struct pcidev_status *devs)
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{
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int i;
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uint32_t addr;
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for (i = 0; devs[i].device_name != NULL; i++) {
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if (dev->device_id != devs[i].device_id)
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continue;
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/* Don't use dev->base_addr[0], won't work on older libpci. */
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addr = pci_read_long(dev, PCI_IO_BASE_ADDRESS) & ~0x03;
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printf("Found \"%s %s\" (%04x:%04x, BDF %02x:%02x.%x)\n",
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devs[i].vendor_name, devs[i].device_name, dev->vendor_id,
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dev->device_id, dev->bus, dev->dev, dev->func);
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if (devs[i].status == PCI_NT) {
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printf("===\nThis PCI device is UNTESTED. Please email "
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"a report including the 'flashrom -p xxxxxx'\n"
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"output to flashrom@coreboot.org if it works "
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"for you. Thank you for your help!\n===\n");
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}
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return addr;
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}
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return 0;
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}
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uint32_t pcidev_init(uint16_t vendor_id, struct pcidev_status *devs)
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{
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struct pci_dev *dev;
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char *msg = NULL;
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int found = 0;
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uint32_t addr = 0, curaddr = 0;
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pacc = pci_alloc(); /* Get the pci_access structure */
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pci_init(pacc); /* Initialize the PCI library */
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pci_scan_bus(pacc); /* We want to get the list of devices */
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pci_filter_init(pacc, &filter);
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/* Filter by vendor and also bb:dd.f (if supplied by the user). */
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filter.vendor = vendor_id;
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if (pcidev_bdf != NULL) {
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if ((msg = pci_filter_parse_slot(&filter, pcidev_bdf))) {
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fprintf(stderr, "Error: %s\n", msg);
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exit(1);
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}
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}
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for (dev = pacc->devices; dev; dev = dev->next) {
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if (pci_filter_match(&filter, dev)) {
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if ((addr = pcidev_validate(dev, devs)) != 0) {
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curaddr = addr;
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pcidev_dev = dev;
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found++;
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}
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}
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}
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/* Only continue if exactly one supported PCI dev has been found. */
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if (found == 0) {
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fprintf(stderr, "Error: No supported PCI device found.\n");
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exit(1);
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} else if (found > 1) {
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fprintf(stderr, "Error: Multiple supported PCI devices found. "
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"Please use 'flashrom -p xxxxxx=bb:dd.f' \n"
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"to explicitly select the card with the given BDF "
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"(PCI bus, device, function).\n");
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exit(1);
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}
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return curaddr;
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}
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void print_supported_pcidevs(struct pcidev_status *devs)
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{
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int i;
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for (i = 0; devs[i].vendor_name != NULL; i++) {
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printf("%s %s [%02x:%02x]%s\n", devs[i].vendor_name,
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devs[i].device_name, devs[i].vendor_id,
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devs[i].device_id,
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(devs[i].status == PCI_NT) ? " (untested)" : "");
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}
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}
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