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  /*
   * OMAP2/3/4 Power/Reset Management (PRM) bitfield definitions
   *
   * Copyright (C) 2007-2009, 2012 Texas Instruments, Inc.
   * Copyright (C) 2010 Nokia Corporation
   *
   * Paul Walmsley
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   */
  #ifndef __ARCH_ARM_MACH_OMAP2_PRM_H
  #define __ARCH_ARM_MACH_OMAP2_PRM_H
  
  #include "prcm-common.h"
  
  # ifndef __ASSEMBLER__
  extern void __iomem *prm_base;
  extern void omap2_set_globals_prm(void __iomem *prm);
  int of_prcm_init(void);
  # endif
  
  
  /*
   * MAX_MODULE_SOFTRESET_WAIT: Maximum microseconds to wait for OMAP
   * module to softreset
   */
  #define MAX_MODULE_SOFTRESET_WAIT		10000
  
  /*
   * MAX_MODULE_HARDRESET_WAIT: Maximum microseconds to wait for an OMAP
   * submodule to exit hardreset
   */
  #define MAX_MODULE_HARDRESET_WAIT		10000
  
  /*
   * Register bitfields
   */
  
  /*
   * 24XX: PM_PWSTST_CORE, PM_PWSTST_GFX, PM_PWSTST_MPU, PM_PWSTST_DSP
   *
   * 2430: PM_PWSTST_MDM
   *
   * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX,
   *	 PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU,
   *	 PM_PWSTST_NEON
   */
  #define OMAP_INTRANSITION_MASK				(1 << 20)
  
  
  /*
   * 24XX: PM_PWSTST_GFX, PM_PWSTST_DSP
   *
   * 2430: PM_PWSTST_MDM
   *
   * 3430: PM_PWSTST_IVA2, PM_PWSTST_MPU, PM_PWSTST_CORE, PM_PWSTST_GFX,
   *	 PM_PWSTST_DSS, PM_PWSTST_CAM, PM_PWSTST_PER, PM_PWSTST_EMU,
   *	 PM_PWSTST_NEON
   */
  #define OMAP_POWERSTATEST_SHIFT				0
  #define OMAP_POWERSTATEST_MASK				(0x3 << 0)
  
  /*
   * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX,
   *       PM_PWSTCTRL_DSP, PM_PWSTST_MPU
   *
   * 2430: PM_PWSTCTRL_MDM shared bits
   *
   * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE,
   *	 PM_PWSTCTRL_GFX, PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER,
   *	 PM_PWSTCTRL_NEON shared bits
   */
  #define OMAP_POWERSTATE_SHIFT				0
  #define OMAP_POWERSTATE_MASK				(0x3 << 0)
  
  /*
   * Standardized OMAP reset source bits
   *
   * To the extent these happen to match the hardware register bit
   * shifts, it's purely coincidental.  Used by omap-wdt.c.
   * OMAP_UNKNOWN_RST_SRC_ID_SHIFT is a special value, used whenever
   * there are any bits remaining in the global PRM_RSTST register that
   * haven't been identified, or when the PRM code for the current SoC
   * doesn't know how to interpret the register.
   */
  #define OMAP_GLOBAL_COLD_RST_SRC_ID_SHIFT			0
  #define OMAP_GLOBAL_WARM_RST_SRC_ID_SHIFT			1
  #define OMAP_SECU_VIOL_RST_SRC_ID_SHIFT				2
  #define OMAP_MPU_WD_RST_SRC_ID_SHIFT				3
  #define OMAP_SECU_WD_RST_SRC_ID_SHIFT				4
  #define OMAP_EXTWARM_RST_SRC_ID_SHIFT				5
  #define OMAP_VDD_MPU_VM_RST_SRC_ID_SHIFT			6
  #define OMAP_VDD_IVA_VM_RST_SRC_ID_SHIFT			7
  #define OMAP_VDD_CORE_VM_RST_SRC_ID_SHIFT			8
  #define OMAP_ICEPICK_RST_SRC_ID_SHIFT				9
  #define OMAP_ICECRUSHER_RST_SRC_ID_SHIFT			10
  #define OMAP_C2C_RST_SRC_ID_SHIFT				11
  #define OMAP_UNKNOWN_RST_SRC_ID_SHIFT				12
  
  #ifndef __ASSEMBLER__
  
  /**
   * struct prm_reset_src_map - map register bitshifts to standard bitshifts
   * @reg_shift: bitshift in the PRM reset source register
   * @std_shift: bitshift equivalent in the standard reset source list
   *
   * The fields are signed because -1 is used as a terminator.
   */
  struct prm_reset_src_map {
  	s8 reg_shift;
  	s8 std_shift;
  };
  
  /**
   * struct prm_ll_data - fn ptrs to per-SoC PRM function implementations
   * @read_reset_sources: ptr to the SoC PRM-specific get_reset_source impl
   * @was_any_context_lost_old: ptr to the SoC PRM context loss test fn
   * @clear_context_loss_flags_old: ptr to the SoC PRM context loss flag clear fn
   *
   * XXX @was_any_context_lost_old and @clear_context_loss_flags_old are
   * deprecated.
   */
  struct prm_ll_data {
  	u32 (*read_reset_sources)(void);
  	bool (*was_any_context_lost_old)(u8 part, s16 inst, u16 idx);
  	void (*clear_context_loss_flags_old)(u8 part, s16 inst, u16 idx);
  };
  
  extern int prm_register(struct prm_ll_data *pld);
  extern int prm_unregister(struct prm_ll_data *pld);
  
  extern u32 prm_read_reset_sources(void);
  extern bool prm_was_any_context_lost_old(u8 part, s16 inst, u16 idx);
  extern void prm_clear_context_loss_flags_old(u8 part, s16 inst, u16 idx);
  
  #endif
  
  
  #endif