diff --git a/pcidev.c b/pcidev.c
new file mode 100644
index 0000000..549d083
--- /dev/null
+++ b/pcidev.c
@@ -0,0 +1,115 @@
+/*
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.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 <string.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include "flash.h"
+
+uint32_t io_base_addr;
+struct pci_access *pacc;
+struct pci_filter filter;
+char *pcidev_bdf = NULL;
+
+uint32_t pcidev_validate(struct pci_dev *dev, struct pcidev_status *devs)
+{
+	int i;
+	uint32_t addr;
+
+	for (i = 0; devs[i].device_name != NULL; i++) {
+		if (dev->device_id != devs[i].device_id)
+			continue;
+
+		addr = (uint32_t)(dev->base_addr[0] & ~0x03);
+
+		printf("Found \"%s %s\" (%04x:%04x, BDF %02x:%02x.%x)\n",
+		       devs[i].vendor_name, devs[i].device_name, dev->vendor_id,
+		       dev->device_id, dev->bus, dev->dev, dev->func);
+
+		if (devs[i].status == PCI_NT) {
+			printf("===\nThis PCI device is UNTESTED. Please email "
+			       "a report including the 'flashrom -p xxxxxx'\n"
+			       "output to flashrom@coreboot.org if it works "
+			       "for you. Thank you for your help!\n===\n");
+		}
+
+		return addr;
+	}
+
+	return 0;
+}
+
+uint32_t pcidev_init(uint16_t vendor_id, struct pcidev_status *devs)
+{
+	struct pci_dev *dev;
+	char *msg = NULL;
+	int found = 0;
+	uint32_t addr = 0;
+
+	pacc = pci_alloc();     /* Get the pci_access structure */
+	pci_init(pacc);         /* Initialize the PCI library */
+	pci_scan_bus(pacc);     /* We want to get the list of devices */
+	pci_filter_init(pacc, &filter);
+
+	/* Filter by vendor and also bb:dd.f (if supplied by the user). */
+	filter.vendor = vendor_id;
+	if (pcidev_bdf != NULL) {
+		if ((msg = pci_filter_parse_slot(&filter, pcidev_bdf))) {
+			fprintf(stderr, "Error: %s\n", msg);
+			exit(1);
+		}
+	}
+
+	for (dev = pacc->devices; dev; dev = dev->next) {
+		if (pci_filter_match(&filter, dev)) {
+			if ((addr = pcidev_validate(dev, devs)) != 0)
+				found++;
+		}
+	}
+
+	/* Only continue if exactly one supported PCI dev has been found. */
+	if (found == 0) {
+		fprintf(stderr, "Error: No supported PCI device found.\n");
+		exit(1);
+	} else if (found > 1) {
+		fprintf(stderr, "Error: Multiple supported PCI devices found. "
+			"Please use 'flashrom -p xxxxxx=bb:dd.f' \n"
+			"to explicitly select the card with the given BDF "
+			"(PCI bus, device, function).\n");
+		exit(1);
+	}
+
+	return addr;
+}
+
+void print_supported_pcidevs(struct pcidev_status *devs)
+{
+	int i;
+
+	for (i = 0; devs[i].vendor_name != NULL; i++) {
+		printf("%s %s [%02x:%02x]%s\n", devs[i].vendor_name,
+		       devs[i].device_name, devs[i].vendor_id,
+		       devs[i].device_id,
+		       (devs[i].status == PCI_NT) ? " (untested)" : "");
+	}
+}