LXR uboot/board/pcippc2/pcippc2

   1/*
   2 * (C) Copyright 2002
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23
  24#include <config.h>
  25#include <common.h>
  26#include <asm/io.h>
  27
  28#include "pci.h"
  29
  30#include "hardware.h"
  31#include "pcippc2.h"
  32
  33u32             pcippc2_fpga0_phys;
  34u32             pcippc2_fpga1_phys;
  35
  36void pcippc2_fpga_init (void)
  37{
  38  pci_dev_t             bdf = pci_find_device(FPGA_VENDOR_ID, FPGA_DEVICE_ID, 0);
  39  unsigned int          addr;
  40  u16                   cmd;
  41
  42  if (bdf == -1)
  43  {
  44    puts("Unable to find FPGA !\n");
  45    hang();
  46  }
  47
  48  pci_read_config_word(bdf, PCI_COMMAND, &cmd);
  49  if ((cmd & (PCI_COMMAND_MEMORY | PCI_COMMAND_IO)) != (PCI_COMMAND_MEMORY | PCI_COMMAND_IO))
  50  {
  51    puts("FPGA is not configured !\n");
  52    hang();
  53  }
  54
  55  pci_read_config_dword(bdf, PCI_BASE_ADDRESS_0, &addr);
  56  if (addr & 0x1)
  57  {
  58      /* IO space
  59       */
  60    pcippc2_fpga0_phys = pci_io_to_phys(bdf, addr & 0xfffffffc);
  61  }
  62  else
  63  {
  64      /* Memory space
  65       */
  66    pcippc2_fpga0_phys = pci_mem_to_phys(bdf, addr & 0xfffffff0);
  67  }
  68
  69  pci_read_config_dword(bdf, PCI_BASE_ADDRESS_1, &addr);
  70  if (addr & 0x1)
  71  {
  72      /* IO space
  73       */
  74    pcippc2_fpga1_phys = pci_io_to_phys(bdf, addr & 0xfffffffc);
  75  }
  76  else
  77  {
  78      /* Memory space
  79       */
  80    pcippc2_fpga1_phys = pci_mem_to_phys(bdf, addr & 0xfffffff0);
  81  }
  82
  83    /* Interrupts are not used
  84     */
  85  out32(FPGA(INT, INTR_MASK), 0xffffffff);
  86  iobarrier_rw();
  87}
  88