release/src-rt-6.x.4708/linux/linux-2.6.36/arch/mips/alchemy/devboards/pb1550/platform.c

   1 /*
   2  * Pb1550 board platform device registration
   3  *
   4  * Copyright (C) 2009 Manuel Lauss
   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 <linux/init.h>
  22
  23 #include <asm/mach-au1x00/au1000.h>
  24 #include <asm/mach-pb1x00/pb1550.h>
  25 #include <asm/mach-db1x00/bcsr.h>
  26
  27 #include "../platform.h"
  28
  29 static int __init pb1550_dev_init(void)
  30 {
  31         int swapped;
  32
  33         /* Pb1550, like all others, also has statuschange irqs; however they're
  34         * wired up on one of the Au1550's shared GPIO201_205 line, which also
  35         * services the PCMCIA card interrupts.  So we ignore statuschange and
  36         * use the GPIO201_205 exclusively for card interrupts, since a) pcmcia
  37         * drivers are used to shared irqs and b) statuschange isn't really use-
  38         * ful anyway.
  39         */
  40         db1x_register_pcmcia_socket(PCMCIA_ATTR_PHYS_ADDR,
  41                                     PCMCIA_ATTR_PHYS_ADDR + 0x000400000 - 1,
  42                                     PCMCIA_MEM_PHYS_ADDR,
  43                                     PCMCIA_MEM_PHYS_ADDR  + 0x000400000 - 1,
  44                                     PCMCIA_IO_PHYS_ADDR,
  45                                     PCMCIA_IO_PHYS_ADDR   + 0x000010000 - 1,
  46                                     AU1550_GPIO201_205_INT,
  47                                     AU1550_GPIO0_INT,
  48                                     0,
  49                                     0,
  50                                     0);
  51
  52         db1x_register_pcmcia_socket(PCMCIA_ATTR_PHYS_ADDR + 0x008000000,
  53                                     PCMCIA_ATTR_PHYS_ADDR + 0x008400000 - 1,
  54                                     PCMCIA_MEM_PHYS_ADDR  + 0x008000000,
  55                                     PCMCIA_MEM_PHYS_ADDR  + 0x008400000 - 1,
  56                                     PCMCIA_IO_PHYS_ADDR   + 0x008000000,
  57                                     PCMCIA_IO_PHYS_ADDR   + 0x008010000 - 1,
  58                                     AU1550_GPIO201_205_INT,
  59                                     AU1550_GPIO1_INT,
  60                                     0,
  61                                     0,
  62                                     1);
  63
  64         swapped = bcsr_read(BCSR_STATUS) & BCSR_STATUS_PB1550_SWAPBOOT;
  65         db1x_register_norflash(128 * 1024 * 1024, 4, swapped);
  66
  67         return 0;
  68 }
  69 device_initcall(pb1550_dev_init);