arch/arm/mach-omap2/prm2xxx_3xxx.h

   1 /*
   2  * OMAP2xxx/3xxx-common Power/Reset Management (PRM) register definitions
   3  *
   4  * Copyright (C) 2007-2009, 2011-2012 Texas Instruments, Inc.
   5  * Copyright (C) 2008-2010 Nokia Corporation
   6  * Paul Walmsley
   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  * The PRM hardware modules on the OMAP2/3 are quite similar to each
  13  * other.  The PRM on OMAP4 has a new register layout, and is handled
  14  * in a separate file.
  15  */
  16 #ifndef __ARCH_ARM_MACH_OMAP2_PRM2XXX_3XXX_H
  17 #define __ARCH_ARM_MACH_OMAP2_PRM2XXX_3XXX_H
  18
  19 #include "prcm-common.h"
  20 #include "prm.h"
  21
  22 /*
  23  * Module specific PRM register offsets from PRM_BASE + domain offset
  24  *
  25  * Use prm_{read,write}_mod_reg() with these registers.
  26  *
  27  * With a few exceptions, these are the register names beginning with
  28  * {PM,RM}_* on both OMAP2/3 SoC families..  (The exceptions are the
  29  * IRQSTATUS and IRQENABLE bits.)
  30  */
  31
  32 /* Register offsets appearing on both OMAP2 and OMAP3 */
  33
  34 #define OMAP2_RM_RSTCTRL                                0x0050
  35 #define OMAP2_RM_RSTTIME                                0x0054
  36 #define OMAP2_RM_RSTST                                  0x0058
  37 #define OMAP2_PM_PWSTCTRL                               0x00e0
  38 #define OMAP2_PM_PWSTST                                 0x00e4
  39
  40 #define PM_WKEN                                         0x00a0
  41 #define PM_WKEN1                                        PM_WKEN
  42 #define PM_WKST                                         0x00b0
  43 #define PM_WKST1                                        PM_WKST
  44 #define PM_WKDEP                                        0x00c8
  45 #define PM_EVGENCTRL                                    0x00d4
  46 #define PM_EVGENONTIM                                   0x00d8
  47 #define PM_EVGENOFFTIM                                  0x00dc
  48
  49
  50 #ifndef __ASSEMBLER__
  51
  52 #include <linux/io.h>
  53 #include "powerdomain.h"
  54
  55 /* Power/reset management domain register get/set */
  56 static inline u32 omap2_prm_read_mod_reg(s16 module, u16 idx)
  57 {
  58         return readl_relaxed(prm_base + module + idx);
  59 }
  60
  61 static inline void omap2_prm_write_mod_reg(u32 val, s16 module, u16 idx)
  62 {
  63         writel_relaxed(val, prm_base + module + idx);
  64 }
  65
  66 /* Read-modify-write a register in a PRM module. Caller must lock */
  67 static inline u32 omap2_prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module,
  68                                              s16 idx)
  69 {
  70         u32 v;
  71
  72         v = omap2_prm_read_mod_reg(module, idx);
  73         v &= ~mask;
  74         v |= bits;
  75         omap2_prm_write_mod_reg(v, module, idx);
  76
  77         return v;
  78 }
  79
  80 /* Read a PRM register, AND it, and shift the result down to bit 0 */
  81 static inline u32 omap2_prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask)
  82 {
  83         u32 v;
  84
  85         v = omap2_prm_read_mod_reg(domain, idx);
  86         v &= mask;
  87         v >>= __ffs(mask);
  88
  89         return v;
  90 }
  91
  92 static inline u32 omap2_prm_set_mod_reg_bits(u32 bits, s16 module, s16 idx)
  93 {
  94         return omap2_prm_rmw_mod_reg_bits(bits, bits, module, idx);
  95 }
  96
  97 static inline u32 omap2_prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
  98 {
  99         return omap2_prm_rmw_mod_reg_bits(bits, 0x0, module, idx);
 100 }
 101
 102 /* These omap2_ PRM functions apply to both OMAP2 and 3 */
 103 extern int omap2_prm_is_hardreset_asserted(s16 prm_mod, u8 shift);
 104 extern int omap2_prm_assert_hardreset(s16 prm_mod, u8 shift);
 105 extern int omap2_prm_deassert_hardreset(s16 prm_mod, u8 rst_shift, u8 st_shift);
 106
 107 extern int omap2_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst);
 108 extern int omap2_pwrdm_read_next_pwrst(struct powerdomain *pwrdm);
 109 extern int omap2_pwrdm_read_pwrst(struct powerdomain *pwrdm);
 110 extern int omap2_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank,
 111                                     u8 pwrst);
 112 extern int omap2_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank,
 113                                      u8 pwrst);
 114 extern int omap2_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank);
 115 extern int omap2_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank);
 116 extern int omap2_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst);
 117 extern int omap2_pwrdm_wait_transition(struct powerdomain *pwrdm);
 118
 119 extern int omap2_clkdm_add_wkdep(struct clockdomain *clkdm1,
 120                                  struct clockdomain *clkdm2);
 121 extern int omap2_clkdm_del_wkdep(struct clockdomain *clkdm1,
 122                                  struct clockdomain *clkdm2);
 123 extern int omap2_clkdm_read_wkdep(struct clockdomain *clkdm1,
 124                                   struct clockdomain *clkdm2);
 125 extern int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm);
 126
 127 #endif /* __ASSEMBLER */
 128
 129 /*
 130  * Bits common to specific registers
 131  *
 132  * The 3430 register and bit names are generally used,
 133  * since they tend to make more sense
 134  */
 135
 136 /* PM_EVGENONTIM_MPU */
 137 /* Named PM_EVEGENONTIM_MPU on the 24XX */
 138 #define OMAP_ONTIMEVAL_SHIFT                            0
 139 #define OMAP_ONTIMEVAL_MASK                             (0xffffffff << 0)
 140
 141 /* PM_EVGENOFFTIM_MPU */
 142 /* Named PM_EVEGENOFFTIM_MPU on the 24XX */
 143 #define OMAP_OFFTIMEVAL_SHIFT                           0
 144 #define OMAP_OFFTIMEVAL_MASK                            (0xffffffff << 0)
 145
 146 /* PRM_CLKSETUP and PRCM_VOLTSETUP */
 147 /* Named PRCM_CLKSSETUP on the 24XX */
 148 #define OMAP_SETUP_TIME_SHIFT                           0
 149 #define OMAP_SETUP_TIME_MASK                            (0xffff << 0)
 150
 151 /* PRM_CLKSRC_CTRL */
 152 /* Named PRCM_CLKSRC_CTRL on the 24XX */
 153 #define OMAP_SYSCLKDIV_SHIFT                            6
 154 #define OMAP_SYSCLKDIV_MASK                             (0x3 << 6)
 155 #define OMAP_SYSCLKDIV_WIDTH                            2
 156 #define OMAP_AUTOEXTCLKMODE_SHIFT                       3
 157 #define OMAP_AUTOEXTCLKMODE_MASK                        (0x3 << 3)
 158 #define OMAP_SYSCLKSEL_SHIFT                            0
 159 #define OMAP_SYSCLKSEL_MASK                             (0x3 << 0)
 160
 161 /* PM_EVGENCTRL_MPU */
 162 #define OMAP_OFFLOADMODE_SHIFT                          3
 163 #define OMAP_OFFLOADMODE_MASK                           (0x3 << 3)
 164 #define OMAP_ONLOADMODE_SHIFT                           1
 165 #define OMAP_ONLOADMODE_MASK                            (0x3 << 1)
 166 #define OMAP_ENABLE_MASK                                (1 << 0)
 167
 168 /* PRM_RSTTIME */
 169 /* Named RM_RSTTIME_WKUP on the 24xx */
 170 #define OMAP_RSTTIME2_SHIFT                             8
 171 #define OMAP_RSTTIME2_MASK                              (0x1f << 8)
 172 #define OMAP_RSTTIME1_SHIFT                             0
 173 #define OMAP_RSTTIME1_MASK                              (0xff << 0)
 174
 175 /* PRM_RSTCTRL */
 176 /* Named RM_RSTCTRL_WKUP on the 24xx */
 177 /* 2420 calls RST_DPLL3 'RST_DPLL' */
 178 #define OMAP_RST_DPLL3_MASK                             (1 << 2)
 179 #define OMAP_RST_GS_MASK                                (1 << 1)
 180
 181
 182 /*
 183  * Bits common to module-shared registers
 184  *
 185  * Not all registers of a particular type support all of these bits -
 186  * check TRM if you are unsure
 187  */
 188
 189 /*
 190  * 24XX: RM_RSTST_MPU and RM_RSTST_DSP - on 24XX, 'COREDOMAINWKUP_RST' is
 191  *       called 'COREWKUP_RST'
 192  *
 193  * 3430: RM_RSTST_IVA2, RM_RSTST_MPU, RM_RSTST_GFX, RM_RSTST_DSS,
 194  *       RM_RSTST_CAM, RM_RSTST_PER, RM_RSTST_NEON
 195  */
 196 #define OMAP_COREDOMAINWKUP_RST_MASK                    (1 << 3)
 197
 198 /*
 199  * 24XX: RM_RSTST_MPU, RM_RSTST_GFX, RM_RSTST_DSP
 200  *
 201  * 2430: RM_RSTST_MDM
 202  *
 203  * 3430: RM_RSTST_CORE, RM_RSTST_EMU
 204  */
 205 #define OMAP_DOMAINWKUP_RST_MASK                        (1 << 2)
 206
 207 /*
 208  * 24XX: RM_RSTST_MPU, RM_RSTST_WKUP, RM_RSTST_DSP
 209  *       On 24XX, 'GLOBALWARM_RST' is called 'GLOBALWMPU_RST'.
 210  *
 211  * 2430: RM_RSTST_MDM
 212  *
 213  * 3430: RM_RSTST_CORE, RM_RSTST_EMU
 214  */
 215 #define OMAP_GLOBALWARM_RST_SHIFT                       1
 216 #define OMAP_GLOBALWARM_RST_MASK                        (1 << 1)
 217 #define OMAP_GLOBALCOLD_RST_SHIFT                       0
 218 #define OMAP_GLOBALCOLD_RST_MASK                        (1 << 0)
 219
 220 /*
 221  * 24XX: PM_WKDEP_GFX, PM_WKDEP_MPU, PM_WKDEP_CORE, PM_WKDEP_DSP
 222  *       2420 TRM sometimes uses "EN_WAKEUP" instead of "EN_WKUP"
 223  *
 224  * 2430: PM_WKDEP_MDM
 225  *
 226  * 3430: PM_WKDEP_IVA2, PM_WKDEP_GFX, PM_WKDEP_DSS, PM_WKDEP_CAM,
 227  *       PM_WKDEP_PER
 228  */
 229 #define OMAP_EN_WKUP_SHIFT                              4
 230 #define OMAP_EN_WKUP_MASK                               (1 << 4)
 231
 232 /*
 233  * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX,
 234  *       PM_PWSTCTRL_DSP
 235  *
 236  * 2430: PM_PWSTCTRL_MDM
 237  *
 238  * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX,
 239  *       PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER,
 240  *       PM_PWSTCTRL_NEON
 241  */
 242 #define OMAP_LOGICRETSTATE_MASK                         (1 << 2)
 243
 244
 245 #endif