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 246