drivers/ide/arm/bast-ide.c

   1 /* linux/drivers/ide/arm/bast-ide.c
   2  *
   3  * Copyright (c) 2003-2004 Simtec Electronics
   4  *  Ben Dooks <ben@simtec.co.uk>
   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 version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10 */
  11
  12 #include <linux/module.h>
  13 #include <linux/errno.h>
  14 #include <linux/ide.h>
  15 #include <linux/init.h>
  16
  17 #include <asm/mach-types.h>
  18
  19 #include <asm/io.h>
  20 #include <asm/irq.h>
  21 #include <asm/arch/map.h>
  22 #include <asm/arch/bast-map.h>
  23 #include <asm/arch/bast-irq.h>
  24
  25 /* list of registered interfaces */
  26 static ide_hwif_t *ifs[2];
  27
  28 static int __init
  29 bastide_register(unsigned int base, unsigned int aux, int irq,
  30                  ide_hwif_t **hwif)
  31 {
  32         hw_regs_t hw;
  33         int i;
  34
  35         memset(&hw, 0, sizeof(hw));
  36
  37         base += BAST_IDE_CS;
  38         aux  += BAST_IDE_CS;
  39
  40         for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
  41                 hw.io_ports[i] = (unsigned long)base;
  42                 base += 0x20;
  43         }
  44
  45         hw.io_ports[IDE_CONTROL_OFFSET] = aux + (6 * 0x20);
  46         hw.irq = irq;
  47
  48         ide_register_hw(&hw, hwif);
  49
  50         return 0;
  51 }
  52
  53 static int __init bastide_init(void)
  54 {
  55         /* we can treat the VR1000 and the BAST the same */
  56
  57         if (!(machine_is_bast() || machine_is_vr1000()))
  58                 return 0;
  59
  60         printk("BAST: IDE driver, (c) 2003-2004 Simtec Electronics\n");
  61
  62         bastide_register(BAST_VA_IDEPRI, BAST_VA_IDEPRIAUX, IRQ_IDE0, &ifs[0]);
  63         bastide_register(BAST_VA_IDESEC, BAST_VA_IDESECAUX, IRQ_IDE1, &ifs[1]);
  64         return 0;
  65 }
  66
  67 module_init(bastide_init);
  68
  69 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
  70 MODULE_LICENSE("GPL");
  71 MODULE_DESCRIPTION("Simtec BAST / Thorcom VR1000 IDE driver");