arch/arm/mach-at91/pm.h

   1 /*
   2  * AT91 Power Management
   3  *
   4  * Copyright (C) 2005 David Brownell
   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 as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11 #ifndef __ARCH_ARM_MACH_AT91_PM
  12 #define __ARCH_ARM_MACH_AT91_PM
  13
  14 #include <asm/proc-fns.h>
  15
  16 #include <linux/mfd/syscon/atmel-mc.h>
  17 #include <soc/at91/at91sam9_ddrsdr.h>
  18 #include <soc/at91/at91sam9_sdramc.h>
  19
  20 #ifndef __ASSEMBLY__
  21 extern void __iomem *at91_ramc_base[];
  22
  23 #define at91_ramc_read(id, field) \
  24         __raw_readl(at91_ramc_base[id] + field)
  25
  26 #define at91_ramc_write(id, field, value) \
  27         __raw_writel(value, at91_ramc_base[id] + field)
  28 #endif
  29
  30 #define AT91_MEMCTRL_MC         0
  31 #define AT91_MEMCTRL_SDRAMC     1
  32 #define AT91_MEMCTRL_DDRSDR     2
  33
  34 #define AT91_PM_MEMTYPE_MASK    0x0f
  35
  36 #define AT91_PM_MODE_OFFSET     4
  37 #define AT91_PM_MODE_MASK       0x01
  38 #define AT91_PM_MODE(x)         (((x) & AT91_PM_MODE_MASK) << AT91_PM_MODE_OFFSET)
  39
  40 #define AT91_PM_SLOW_CLOCK      0x01
  41
  42 #endif