drivers/ide/arm/ide_arm.c

   1 /*
   2  * ARM/ARM26 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_ARM26
  18 # define IDE_ARM_HOST   (machine_is_a5k())
  19 #else
  20 # define IDE_ARM_HOST   (1)
  21 #endif
  22
  23 #ifdef CONFIG_ARCH_CLPS7500
  24 # include <asm/arch/hardware.h>
  25 #
  26 # define IDE_ARM_IO     (ISASLOT_IO + 0x1f0)
  27 # define IDE_ARM_IRQ    IRQ_ISA_14
  28 #else
  29 # define IDE_ARM_IO     0x1f0
  30 # define IDE_ARM_IRQ    IRQ_HARDDISK
  31 #endif
  32
  33 void __init ide_arm_init(void)
  34 {
  35         if (IDE_ARM_HOST) {
  36                 hw_regs_t hw;
  37
  38                 memset(&hw, 0, sizeof(hw));
  39                 ide_std_init_ports(&hw, IDE_ARM_IO, IDE_ARM_IO + 0x206);
  40                 hw.irq = IDE_ARM_IRQ;
  41                 ide_register_hw(&hw, NULL);
  42         }
  43 }