LXR linux/arch/mips/pci/pci-yosemite.c

   1/*
   2 * This file is subject to the terms and conditions of the GNU General Public
   3 * License.  See the file "COPYING" in the main directory of this archive
   4 * for more details.
   5 *
   6 * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
   7 */
   8#include <linux/init.h>
   9#include <linux/kernel.h>
  10#include <linux/types.h>
  11#include <linux/pci.h>
  12#include <asm/titan_dep.h>
  13
  14extern struct pci_ops titan_pci_ops;
  15
  16static struct resource py_mem_resource = {
  17        .start  = 0xe0000000UL,
  18        .end    = 0xe3ffffffUL,
  19        .name   = "Titan PCI MEM",
  20        .flags  = IORESOURCE_MEM
  21};
  22
  23/*
  24 * PMON really reserves 16MB of I/O port space but that's stupid, nothing
  25 * needs that much since allocations are limited to 256 bytes per device
  26 * anyway.  So we just claim 64kB here.
  27 */
  28#define TITAN_IO_SIZE   0x0000ffffUL
  29#define TITAN_IO_BASE   0xe8000000UL
  30
  31static struct resource py_io_resource = {
  32        .start  = 0x00001000UL,
  33        .end    = TITAN_IO_SIZE - 1,
  34        .name   = "Titan IO MEM",
  35        .flags  = IORESOURCE_IO,
  36};
  37
  38static struct pci_controller py_controller = {
  39        .pci_ops        = &titan_pci_ops,
  40        .mem_resource   = &py_mem_resource,
  41        .mem_offset     = 0x00000000UL,
  42        .io_resource    = &py_io_resource,
  43        .io_offset      = 0x00000000UL
  44};
  45
  46static char ioremap_failed[] __initdata = "Could not ioremap I/O port range";
  47
  48static int __init pmc_yosemite_setup(void)
  49{
  50        unsigned long io_v_base;
  51
  52        io_v_base = (unsigned long) ioremap(TITAN_IO_BASE, TITAN_IO_SIZE);
  53        if (!io_v_base)
  54                panic(ioremap_failed);
  55
  56        set_io_port_base(io_v_base);
  57        TITAN_WRITE(RM9000x2_OCD_LKM7, TITAN_READ(RM9000x2_OCD_LKM7) | 1);
  58
  59        ioport_resource.end = TITAN_IO_SIZE - 1;
  60
  61        register_pci_controller(&py_controller);
  62
  63        return 0;
  64}
  65
  66arch_initcall(pmc_yosemite_setup);
  67