LXR coreboot/src/drivers/dec/21143/21143.c

   1/*
   2 * This file is part of the coreboot project.
   3 *
   4 * Copyright (C) 2010 Marc Bertens <mbertens@xs4all.nl>
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation; either version 2 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19 */
  20
  21#include <device/device.h>
  22#include <device/pci_def.h>
  23#include <device/pci.h>
  24#include <device/pci_ids.h>
  25#include <console/console.h>
  26
  27static void dec_21143_enable(device_t dev)
  28{
  29        printk(BIOS_DEBUG, "Initializing DECchip 21143\n");
  30
  31        // The resource allocator should do this. If not, it needs to be fixed
  32        // differently.
  33#if 0 
  34        /* Command and status configuration (offset 0x04) */
  35        pci_write_config32(dev, 0x04, 0x02800107);
  36        printk(BIOS_DEBUG, "0x04 = %08x (07 01 80 02)\n",
  37               pci_read_config32(dev, 0x04));
  38
  39        /* Cache line size (offset 0x0C) */
  40        pci_write_config8(dev, 0x0C, 0x00);
  41        printk(BIOS_DEBUG, "0x0c = %08x (00)\n",
  42               pci_read_config8(dev, 0x0C));
  43#endif
  44}
  45
  46static struct device_operations dec_21143_ops = {
  47        .read_resources   = pci_dev_read_resources,
  48        .set_resources    = pci_dev_set_resources,
  49        .enable_resources = pci_dev_enable_resources,
  50        .init             = dec_21143_enable,
  51        .scan_bus         = 0,
  52};
  53
  54static const struct pci_driver dec_21143_driver __pci_driver = {
  55        .ops    = &dec_21143_ops,
  56        .vendor = PCI_VENDOR_ID_DEC,
  57        .device = PCI_DEVICE_ID_DEC_21142, // FIXME wrong ID?
  58};
  59