drivers/ide/arm/ide_arm.c

   1 /*
   2  * ARM default IDE host driver
   3  *
   4  * Copyright (C) 2004 Bartlomiej Zolnierkiewicz
   5  * Based on code by: Russell King, Ian Molton and Alexander Schulz.
   6  *
   7  * May be copied or modified under the terms of the GNU General Public License.
   8  */
   9
  10 #include <linux/kernel.h>
  11 #include <linux/init.h>
  12 #include <linux/ide.h>
  13
  14 #include <asm/mach-types.h>
  15 #include <asm/irq.h>
  16
  17 #ifdef CONFIG_ARCH_CLPS7500
  18 # include <asm/arch/hardware.h>
  19 #
  20 # define IDE_ARM_IO     (ISASLOT_IO + 0x1f0)
  21 # define IDE_ARM_IRQ    IRQ_ISA_14
  22 #else
  23 # define IDE_ARM_IO     0x1f0
  24 # define IDE_ARM_IRQ    IRQ_HARDDISK
  25 #endif
  26
  27 static int __init ide_arm_init(void)
  28 {
  29         ide_hwif_t *hwif;
  30         hw_regs_t hw;
  31         u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
  32
  33         memset(&hw, 0, sizeof(hw));
  34         ide_std_init_ports(&hw, IDE_ARM_IO, IDE_ARM_IO + 0x206);
  35         hw.irq = IDE_ARM_IRQ;
  36
  37         hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]);
  38         if (hwif) {
  39                 ide_init_port_hw(hwif, &hw);
  40                 idx[0] = hwif->index;
  41
  42                 ide_device_add(idx);
  43         }
  44
  45         return 0;
  46 }
  47
  48 module_init(ide_arm_init);