text: /*
   *
   *  This file contains the hardware definitions of the BCMRing.
   *
   *  Copyright (C) 1999 ARM Limited.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  #ifndef __ASM_ARCH_HARDWARE_H
  #define __ASM_ARCH_HARDWARE_H
  
  #include <asm/sizes.h>
  #include <mach/memory.h>
  #include <cfg_global.h>
  #include <mach/csp/mm_io.h>
  
  /* Hardware addresses of major areas.
   *  *_START is the physical address
   *  *_SIZE  is the size of the region
   *  *_BASE  is the virtual address
   */
  #define RAM_START               PHYS_OFFSET
  
  #define RAM_SIZE                (CFG_GLOBAL_RAM_SIZE-CFG_GLOBAL_RAM_SIZE_RESERVED)
  #define RAM_BASE                PAGE_OFFSET
  
  #define pcibios_assign_all_busses()	1
  
  /* Macros to make managing spinlocks a bit more controlled in terms of naming. */
  /* See reg_gpio.h, reg_irq.h, arch.c, gpio.c for example usage. */
  #if defined(__KERNEL__)
  #define HW_DECLARE_SPINLOCK(name)  DEFINE_SPINLOCK(bcmring_##name##_reg_lock);
  #define HW_EXTERN_SPINLOCK(name)   extern spinlock_t bcmring_##name##_reg_lock;
  #define HW_IRQ_SAVE(name, val)     spin_lock_irqsave(&bcmring_##name##_reg_lock, (val))
  #define HW_IRQ_RESTORE(name, val)  spin_unlock_irqrestore(&bcmring_##name##_reg_lock, (val))
  #else
  #define HW_DECLARE_SPINLOCK(name)
  #define HW_EXTERN_SPINLOCK(name)
  #define HW_IRQ_SAVE(name, val)     {(void)(name); (void)(val); }
  #define HW_IRQ_RESTORE(name, val)  {(void)(name); (void)(val); }
  #endif
  
  #ifndef HW_IO_PHYS_TO_VIRT
  #define HW_IO_PHYS_TO_VIRT MM_IO_PHYS_TO_VIRT
  #endif
  #define HW_IO_VIRT_TO_PHYS MM_IO_VIRT_TO_PHYS
  
  #endif
  