arch/arm/mach-bcmring/include/mach/hardware.h

   1 /*
   2  *
   3  *  This file contains the hardware definitions of the BCMRing.
   4  *
   5  *  Copyright (C) 1999 ARM Limited.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21 #ifndef __ASM_ARCH_HARDWARE_H
  22 #define __ASM_ARCH_HARDWARE_H
  23
  24 #include <asm/sizes.h>
  25 #include <mach/memory.h>
  26 #include <cfg_global.h>
  27 #include <mach/csp/mm_io.h>
  28
  29 /* Hardware addresses of major areas.
  30  *  *_START is the physical address
  31  *  *_SIZE  is the size of the region
  32  *  *_BASE  is the virtual address
  33  */
  34 #define RAM_START               PLAT_PHYS_OFFSET
  35
  36 #define RAM_SIZE                (CFG_GLOBAL_RAM_SIZE-CFG_GLOBAL_RAM_SIZE_RESERVED)
  37 #define RAM_BASE                PAGE_OFFSET
  38
  39 /* Macros to make managing spinlocks a bit more controlled in terms of naming. */
  40 /* See reg_gpio.h, reg_irq.h, arch.c, gpio.c for example usage. */
  41 #if defined(__KERNEL__)
  42 #define HW_DECLARE_SPINLOCK(name)  DEFINE_SPINLOCK(bcmring_##name##_reg_lock);
  43 #define HW_EXTERN_SPINLOCK(name)   extern spinlock_t bcmring_##name##_reg_lock;
  44 #define HW_IRQ_SAVE(name, val)     spin_lock_irqsave(&bcmring_##name##_reg_lock, (val))
  45 #define HW_IRQ_RESTORE(name, val)  spin_unlock_irqrestore(&bcmring_##name##_reg_lock, (val))
  46 #else
  47 #define HW_DECLARE_SPINLOCK(name)
  48 #define HW_EXTERN_SPINLOCK(name)
  49 #define HW_IRQ_SAVE(name, val)     {(void)(name); (void)(val); }
  50 #define HW_IRQ_RESTORE(name, val)  {(void)(name); (void)(val); }
  51 #endif
  52
  53 #ifndef HW_IO_PHYS_TO_VIRT
  54 #define HW_IO_PHYS_TO_VIRT MM_IO_PHYS_TO_VIRT
  55 #endif
  56 #define HW_IO_VIRT_TO_PHYS MM_IO_VIRT_TO_PHYS
  57
  58 #endif