/*
* 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 u16 prm_features;
extern void omap2_set_globals_prm(void __iomem *prm);
int of_prcm_init(void);
void omap3_prcm_legacy_iomaps_init(void);
# endif
/*
* prm_features flag values
*
* PRM_HAS_IO_WAKEUP: has IO wakeup capability
* PRM_HAS_VOLTAGE: has voltage domains
*/
#define PRM_HAS_IO_WAKEUP (1 << 0)
#define PRM_HAS_VOLTAGE (1 << 1)
/*
* 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
* @late_init: ptr to the late init function
* @assert_hardreset: ptr to the SoC PRM hardreset assert impl
* @deassert_hardreset: ptr to the SoC PRM hardreset deassert impl
*
* 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);
int (*late_init)(void);
int (*assert_hardreset)(u8 shift, u8 part, s16 prm_mod, u16 offset);
int (*deassert_hardreset)(u8 shift, u8 st_shift, u8 part, s16 prm_mod,
u16 offset, u16 st_offset);
int (*is_hardreset_asserted)(u8 shift, u8 part, s16 prm_mod,
u16 offset);
void (*reset_system)(void);
};
extern int prm_register(struct prm_ll_data *pld);
extern int prm_unregister(struct prm_ll_data *pld);
int omap_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, u16 offset);
int omap_prm_deassert_hardreset(u8 shift, u8 st_shift, u8 part, s16 prm_mod,
u16 offset, u16 st_offset);
int omap_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset);
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);
void omap_prm_reset_system(void);
void omap_prm_reconfigure_io_chain(void);
#endif
#endif
