1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * OMAP2xxx/3xxx-common Power/Reset Management (PRM) register definitions 4 * 5 * Copyright (C) 2007-2009, 2011-2012 Texas Instruments, Inc. 6 * Copyright (C) 2008-2010 Nokia Corporation 7 * Paul Walmsley 8 * 9 * The PRM hardware modules on the OMAP2/3 are quite similar to each 10 * other. The PRM on OMAP4 has a new register layout, and is handled 11 * in a separate file. 12 */ 13 #ifndef __ARCH_ARM_MACH_OMAP2_PRM2XXX_3XXX_H 14 #define __ARCH_ARM_MACH_OMAP2_PRM2XXX_3XXX_H 15 16 #include "prcm-common.h" 17 #include "prm.h" 18 19 /* 20 * Module specific PRM register offsets from PRM_BASE + domain offset 21 * 22 * Use prm_{read,write}_mod_reg() with these registers. 23 * 24 * With a few exceptions, these are the register names beginning with 25 * {PM,RM}_* on both OMAP2/3 SoC families.. (The exceptions are the 26 * IRQSTATUS and IRQENABLE bits.) 27 */ 28 29 /* Register offsets appearing on both OMAP2 and OMAP3 */ 30 31 #define OMAP2_RM_RSTCTRL 0x0050 32 #define OMAP2_RM_RSTTIME 0x0054 33 #define OMAP2_RM_RSTST 0x0058 34 #define OMAP2_PM_PWSTCTRL 0x00e0 35 #define OMAP2_PM_PWSTST 0x00e4 36 37 #define PM_WKEN 0x00a0 38 #define PM_WKEN1 PM_WKEN 39 #define PM_WKST 0x00b0 40 #define PM_WKST1 PM_WKST 41 #define PM_WKDEP 0x00c8 42 #define PM_EVGENCTRL 0x00d4 43 #define PM_EVGENONTIM 0x00d8 44 #define PM_EVGENOFFTIM 0x00dc 45 46 47 #ifndef __ASSEMBLER__ 48 49 #include <linux/io.h> 50 #include "powerdomain.h" 51 52 /* Power/reset management domain register get/set */ 53 static inline u32 omap2_prm_read_mod_reg(s16 module, u16 idx) 54 { 55 return readl_relaxed(prm_base.va + module + idx); 56 } 57 58 static inline void omap2_prm_write_mod_reg(u32 val, s16 module, u16 idx) 59 { 60 writel_relaxed(val, prm_base.va + module + idx); 61 } 62 63 /* Read-modify-write a register in a PRM module. Caller must lock */ 64 static inline u32 omap2_prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, 65 s16 idx) 66 { 67 u32 v; 68 69 v = omap2_prm_read_mod_reg(module, idx); 70 v &= ~mask; 71 v |= bits; 72 omap2_prm_write_mod_reg(v, module, idx); 73 74 return v; 75 } 76 77 /* Read a PRM register, AND it, and shift the result down to bit 0 */ 78 static inline u32 omap2_prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask) 79 { 80 u32 v; 81 82 v = omap2_prm_read_mod_reg(domain, idx); 83 v &= mask; 84 v >>= __ffs(mask); 85 86 return v; 87 } 88 89 static inline u32 omap2_prm_set_mod_reg_bits(u32 bits, s16 module, s16 idx) 90 { 91 return omap2_prm_rmw_mod_reg_bits(bits, bits, module, idx); 92 } 93 94 static inline u32 omap2_prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx) 95 { 96 return omap2_prm_rmw_mod_reg_bits(bits, 0x0, module, idx); 97 } 98 99 /* These omap2_ PRM functions apply to both OMAP2 and 3 */ 100 int omap2_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset); 101 int omap2_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod, 102 u16 offset); 103 int omap2_prm_deassert_hardreset(u8 rst_shift, u8 st_shift, u8 part, 104 s16 prm_mod, u16 reset_offset, 105 u16 st_offset); 106 107 extern int omap2_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank, 108 u8 pwrst); 109 extern int omap2_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank, 110 u8 pwrst); 111 extern int omap2_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank); 112 extern int omap2_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank); 113 extern int omap2_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst); 114 extern int omap2_pwrdm_wait_transition(struct powerdomain *pwrdm); 115 116 extern int omap2_clkdm_add_wkdep(struct clockdomain *clkdm1, 117 struct clockdomain *clkdm2); 118 extern int omap2_clkdm_del_wkdep(struct clockdomain *clkdm1, 119 struct clockdomain *clkdm2); 120 extern int omap2_clkdm_read_wkdep(struct clockdomain *clkdm1, 121 struct clockdomain *clkdm2); 122 extern int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm); 123 124 #endif /* __ASSEMBLER */ 125 126 /* 127 * Bits common to specific registers 128 * 129 * The 3430 register and bit names are generally used, 130 * since they tend to make more sense 131 */ 132 133 /* PM_EVGENONTIM_MPU */ 134 /* Named PM_EVEGENONTIM_MPU on the 24XX */ 135 #define OMAP_ONTIMEVAL_SHIFT 0 136 #define OMAP_ONTIMEVAL_MASK (0xffffffff << 0) 137 138 /* PM_EVGENOFFTIM_MPU */ 139 /* Named PM_EVEGENOFFTIM_MPU on the 24XX */ 140 #define OMAP_OFFTIMEVAL_SHIFT 0 141 #define OMAP_OFFTIMEVAL_MASK (0xffffffff << 0) 142 143 /* PRM_CLKSETUP and PRCM_VOLTSETUP */ 144 /* Named PRCM_CLKSSETUP on the 24XX */ 145 #define OMAP_SETUP_TIME_SHIFT 0 146 #define OMAP_SETUP_TIME_MASK (0xffff << 0) 147 148 /* PRM_CLKSRC_CTRL */ 149 /* Named PRCM_CLKSRC_CTRL on the 24XX */ 150 #define OMAP_SYSCLKDIV_SHIFT 6 151 #define OMAP_SYSCLKDIV_MASK (0x3 << 6) 152 #define OMAP_SYSCLKDIV_WIDTH 2 153 #define OMAP_AUTOEXTCLKMODE_SHIFT 3 154 #define OMAP_AUTOEXTCLKMODE_MASK (0x3 << 3) 155 #define OMAP_SYSCLKSEL_SHIFT 0 156 #define OMAP_SYSCLKSEL_MASK (0x3 << 0) 157 158 /* PM_EVGENCTRL_MPU */ 159 #define OMAP_OFFLOADMODE_SHIFT 3 160 #define OMAP_OFFLOADMODE_MASK (0x3 << 3) 161 #define OMAP_ONLOADMODE_SHIFT 1 162 #define OMAP_ONLOADMODE_MASK (0x3 << 1) 163 #define OMAP_ENABLE_MASK (1 << 0) 164 165 /* PRM_RSTTIME */ 166 /* Named RM_RSTTIME_WKUP on the 24xx */ 167 #define OMAP_RSTTIME2_SHIFT 8 168 #define OMAP_RSTTIME2_MASK (0x1f << 8) 169 #define OMAP_RSTTIME1_SHIFT 0 170 #define OMAP_RSTTIME1_MASK (0xff << 0) 171 172 /* PRM_RSTCTRL */ 173 /* Named RM_RSTCTRL_WKUP on the 24xx */ 174 /* 2420 calls RST_DPLL3 'RST_DPLL' */ 175 #define OMAP_RST_DPLL3_MASK (1 << 2) 176 #define OMAP_RST_GS_MASK (1 << 1) 177 178 179 /* 180 * Bits common to module-shared registers 181 * 182 * Not all registers of a particular type support all of these bits - 183 * check TRM if you are unsure 184 */ 185 186 /* 187 * 24XX: RM_RSTST_MPU and RM_RSTST_DSP - on 24XX, 'COREDOMAINWKUP_RST' is 188 * called 'COREWKUP_RST' 189 * 190 * 3430: RM_RSTST_IVA2, RM_RSTST_MPU, RM_RSTST_GFX, RM_RSTST_DSS, 191 * RM_RSTST_CAM, RM_RSTST_PER, RM_RSTST_NEON 192 */ 193 #define OMAP_COREDOMAINWKUP_RST_MASK (1 << 3) 194 195 /* 196 * 24XX: RM_RSTST_MPU, RM_RSTST_GFX, RM_RSTST_DSP 197 * 198 * 2430: RM_RSTST_MDM 199 * 200 * 3430: RM_RSTST_CORE, RM_RSTST_EMU 201 */ 202 #define OMAP_DOMAINWKUP_RST_MASK (1 << 2) 203 204 /* 205 * 24XX: RM_RSTST_MPU, RM_RSTST_WKUP, RM_RSTST_DSP 206 * On 24XX, 'GLOBALWARM_RST' is called 'GLOBALWMPU_RST'. 207 * 208 * 2430: RM_RSTST_MDM 209 * 210 * 3430: RM_RSTST_CORE, RM_RSTST_EMU 211 */ 212 #define OMAP_GLOBALWARM_RST_SHIFT 1 213 #define OMAP_GLOBALWARM_RST_MASK (1 << 1) 214 #define OMAP_GLOBALCOLD_RST_SHIFT 0 215 #define OMAP_GLOBALCOLD_RST_MASK (1 << 0) 216 217 /* 218 * 24XX: PM_WKDEP_GFX, PM_WKDEP_MPU, PM_WKDEP_CORE, PM_WKDEP_DSP 219 * 2420 TRM sometimes uses "EN_WAKEUP" instead of "EN_WKUP" 220 * 221 * 2430: PM_WKDEP_MDM 222 * 223 * 3430: PM_WKDEP_IVA2, PM_WKDEP_GFX, PM_WKDEP_DSS, PM_WKDEP_CAM, 224 * PM_WKDEP_PER 225 */ 226 #define OMAP_EN_WKUP_SHIFT 4 227 #define OMAP_EN_WKUP_MASK (1 << 4) 228 229 /* 230 * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX, 231 * PM_PWSTCTRL_DSP 232 * 233 * 2430: PM_PWSTCTRL_MDM 234 * 235 * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX, 236 * PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER, 237 * PM_PWSTCTRL_NEON 238 */ 239 #define OMAP_LOGICRETSTATE_MASK (1 << 2) 240 241 242 #endif 243