arch/arm/plat-mxc/include/mach/mtd-xip.h

   1 /*
   2  * MTD primitives for XIP support. Architecture specific functions
   3  *
   4  * Do not include this file directly. It's included from linux/mtd/xip.h
   5  *
   6  * Copyright (C) 2008 Darius Augulis <augulis.darius@gmail.com>, Teltonika, Inc.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  */
  13
  14 #include <mach/mxc_timer.h>
  15
  16 #ifndef __ARCH_IMX_MTD_XIP_H__
  17 #define __ARCH_IMX_MTD_XIP_H__
  18
  19 #ifdef CONFIG_ARCH_MX1
  20 /* AITC registers */
  21 #define AITC_BASE       IO_ADDRESS(AVIC_BASE_ADDR)
  22 #define NIPNDH          (AITC_BASE + 0x58)
  23 #define NIPNDL          (AITC_BASE + 0x5C)
  24 #define INTENABLEH      (AITC_BASE + 0x10)
  25 #define INTENABLEL      (AITC_BASE + 0x14)
  26 /* MTD macros */
  27 #define xip_irqpending() ((__raw_readl(INTENABLEH) &  __raw_readl(NIPNDH)) \
  28                         || (__raw_readl(INTENABLEL) &  __raw_readl(NIPNDL)))
  29 #define xip_currtime()          (__raw_readl(TIMER_BASE + MXC_TCN))
  30 #define xip_elapsed_since(x)    (signed)((__raw_readl(TIMER_BASE + MXC_TCN) - (x)) / 96)
  31 #define xip_cpu_idle()          asm volatile ("mcr p15, 0, %0, c7, c0, 4" :: "r" (0))
  32 #endif /* CONFIG_ARCH_MX1 */
  33
  34 #endif /* __ARCH_IMX_MTD_XIP_H__ */