1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (C) 2016 Freescale Semiconductor, Inc. 4 */ 5 6 #ifndef _ASM_ARCH_SCG_H 7 #define _ASM_ARCH_SCG_H 8 9 #ifdef CONFIG_CLK_DEBUG 10 #define clk_debug(fmt, args...) printf(fmt, ##args) 11 #else 12 #define clk_debug(fmt, args...) 13 #endif 14 15 #define SCG_CCR_SCS_SHIFT (24) 16 #define SCG_CCR_SCS_MASK ((0xFUL) << SCG_CCR_SCS_SHIFT) 17 #define SCG_CCR_DIVCORE_SHIFT (16) 18 #define SCG_CCR_DIVCORE_MASK ((0xFUL) << SCG_CCR_DIVCORE_SHIFT) 19 #define SCG_CCR_DIVPLAT_SHIFT (12) 20 #define SCG_CCR_DIVPLAT_MASK ((0xFUL) << SCG_CCR_DIVPLAT_SHIFT) 21 #define SCG_CCR_DIVEXT_SHIFT (8) 22 #define SCG_CCR_DIVEXT_MASK ((0xFUL) << SCG_CCR_DIVEXT_SHIFT) 23 #define SCG_CCR_DIVBUS_SHIFT (4) 24 #define SCG_CCR_DIVBUS_MASK ((0xFUL) << SCG_CCR_DIVBUS_SHIFT) 25 #define SCG_CCR_DIVSLOW_SHIFT (0) 26 #define SCG_CCR_DIVSLOW_MASK ((0xFUL) << SCG_CCR_DIVSLOW_SHIFT) 27 28 /* SCG DDR Clock Control Register */ 29 #define SCG_DDRCCR_DDRCS_SHIFT (24) 30 #define SCG_DDRCCR_DDRCS_MASK ((0x1UL) << SCG_DDRCCR_DDRCS_SHIFT) 31 32 #define SCG_DDRCCR_DDRDIV_SHIFT (0) 33 #define SCG_DDRCCR_DDRDIV_MASK ((0x7UL) << SCG_DDRCCR_DDRDIV_SHIFT) 34 35 /* SCG NIC Clock Control Register */ 36 #define SCG_NICCCR_NICCS_SHIFT (28) 37 #define SCG_NICCCR_NICCS_MASK ((0x1UL) << SCG_NICCCR_NICCS_SHIFT) 38 39 #define SCG_NICCCR_NIC0_DIV_SHIFT (24) 40 #define SCG_NICCCR_NIC0_DIV_MASK ((0xFUL) << SCG_NICCCR_NIC0_DIV_SHIFT) 41 42 #define SCG_NICCCR_GPU_DIV_SHIFT (20) 43 #define SCG_NICCCR_GPU_DIV_MASK ((0xFUL) << SCG_NICCCR_GPU_DIV_SHIFT) 44 45 #define SCG_NICCCR_NIC1_DIV_SHIFT (16) 46 #define SCG_NICCCR_NIC1_DIV_MASK ((0xFUL) << SCG_NICCCR_NIC1_DIV_SHIFT) 47 48 #define SCG_NICCCR_NIC1_DIVEXT_SHIFT (8) 49 #define SCG_NICCCR_NIC1_DIVEXT_MASK ((0xFUL) << SCG_NICCCR_NIC1_DIVEXT_SHIFT) 50 51 #define SCG_NICCCR_NIC1_DIVBUS_SHIFT (4) 52 #define SCG_NICCCR_NIC1_DIVBUS_MASK ((0xFUL) << SCG_NICCCR_NIC1_DIVBUS_SHIFT) 53 54 /* SCG NIC clock status register */ 55 #define SCG_NICCSR_NICCS_SHIFT (28) 56 #define SCG_NICCSR_NICCS_MASK ((0x1UL) << SCG_NICCSR_NICCS_SHIFT) 57 58 #define SCG_NICCSR_NIC0DIV_SHIFT (24) 59 #define SCG_NICCSR_NIC0DIV_MASK ((0xFUL) << SCG_NICCSR_NIC0DIV_SHIFT) 60 #define SCG_NICCSR_GPUDIV_SHIFT (20) 61 #define SCG_NICCSR_GPUDIV_MASK ((0xFUL) << SCG_NICCSR_GPUDIV_SHIFT) 62 #define SCG_NICCSR_NIC1DIV_SHIFT (16) 63 #define SCG_NICCSR_NIC1DIV_MASK ((0xFUL) << SCG_NICCSR_NIC1DIV_SHIFT) 64 #define SCG_NICCSR_NIC1EXTDIV_SHIFT (8) 65 #define SCG_NICCSR_NIC1EXTDIV_MASK ((0xFUL) << SCG_NICCSR_NIC1EXTDIV_SHIFT) 66 #define SCG_NICCSR_NIC1BUSDIV_SHIFT (4) 67 #define SCG_NICCSR_NIC1BUSDIV_MASK ((0xFUL) << SCG_NICCSR_NIC1BUSDIV_SHIFT) 68 69 /* SCG Slow IRC Control Status Register */ 70 #define SCG_SIRC_CSR_SIRCVLD_SHIFT (24) 71 #define SCG_SIRC_CSR_SIRCVLD_MASK ((0x1UL) << SCG_SIRC_CSR_SIRCVLD_SHIFT) 72 73 #define SCG_SIRC_CSR_SIRCEN_SHIFT (0) 74 #define SCG_SIRC_CSR_SIRCEN_MASK ((0x1UL) << SCG_SIRC_CSR_SIRCEN_SHIFT) 75 76 /* SCG Slow IRC Configuration Register */ 77 #define SCG_SIRCCFG_RANGE_SHIFT (0) 78 #define SCG_SIRCCFG_RANGE_MASK ((0x1UL) << SCG_SIRCCFG_RANGE_SHIFT) 79 #define SCG_SIRCCFG_RANGE_4M ((0x0UL) << SCG_SIRCCFG_RANGE_SHIFT) 80 #define SCG_SIRCCFG_RANGE_16M ((0x1UL) << SCG_SIRCCFG_RANGE_SHIFT) 81 82 /* SCG Slow IRC Divide Register */ 83 #define SCG_SIRCDIV_DIV3_SHIFT (16) 84 #define SCG_SIRCDIV_DIV3_MASK ((0x7UL) << SCG_SIRCDIV_DIV3_SHIFT) 85 86 #define SCG_SIRCDIV_DIV2_SHIFT (8) 87 #define SCG_SIRCDIV_DIV2_MASK ((0x7UL) << SCG_SIRCDIV_DIV2_SHIFT) 88 89 #define SCG_SIRCDIV_DIV1_SHIFT (0) 90 #define SCG_SIRCDIV_DIV1_MASK ((0x7UL) << SCG_SIRCDIV_DIV1_SHIFT) 91 /* 92 * FIRC/SIRC DIV1 ==> xIRC_PLAT_CLK 93 * FIRC/SIRC DIV2 ==> xIRC_BUS_CLK 94 * FIRC/SIRC DIV3 ==> xIRC_SLOW_CLK 95 */ 96 97 /* SCG Fast IRC Control Status Register */ 98 #define SCG_FIRC_CSR_FIRCVLD_SHIFT (24) 99 #define SCG_FIRC_CSR_FIRCVLD_MASK ((0x1UL) << SCG_FIRC_CSR_FIRCVLD_SHIFT) 100 101 #define SCG_FIRC_CSR_FIRCEN_SHIFT (0) 102 #define SCG_FIRC_CSR_FIRCEN_MASK ((0x1UL) << SCG_FIRC_CSR_FIRCEN_SHIFT) 103 104 /* SCG Fast IRC Divide Register */ 105 #define SCG_FIRCDIV_DIV3_SHIFT (16) 106 #define SCG_FIRCDIV_DIV3_MASK ((0x7UL) << SCG_FIRCDIV_DIV3_SHIFT) 107 108 #define SCG_FIRCDIV_DIV2_SHIFT (8) 109 #define SCG_FIRCDIV_DIV2_MASK ((0x7UL) << SCG_FIRCDIV_DIV2_SHIFT) 110 111 #define SCG_FIRCDIV_DIV1_SHIFT (0) 112 #define SCG_FIRCDIV_DIV1_MASK ((0x7UL) << SCG_FIRCDIV_DIV1_SHIFT) 113 114 #define SCG_FIRCCFG_RANGE_SHIFT (0) 115 #define SCG_FIRCCFG_RANGE_MASK ((0x3UL) << SCG_FIRCCFG_RANGE_SHIFT) 116 117 #define SCG_FIRCCFG_RANGE_SHIFT (0) 118 #define SCG_FIRCCFG_RANGE_48M ((0x0UL) << SCG_FIRCCFG_RANGE_SHIFT) 119 120 /* SCG System OSC Control Status Register */ 121 #define SCG_SOSC_CSR_SOSCVLD_SHIFT (24) 122 #define SCG_SOSC_CSR_SOSCVLD_MASK ((0x1UL) << SCG_SOSC_CSR_SOSCVLD_SHIFT) 123 124 /* SCG Fast IRC Divide Register */ 125 #define SCG_SOSCDIV_DIV3_SHIFT (16) 126 #define SCG_SOSCDIV_DIV3_MASK ((0x7UL) << SCG_SOSCDIV_DIV3_SHIFT) 127 128 #define SCG_SOSCDIV_DIV2_SHIFT (8) 129 #define SCG_SOSCDIV_DIV2_MASK ((0x7UL) << SCG_SOSCDIV_DIV2_SHIFT) 130 131 #define SCG_SOSCDIV_DIV1_SHIFT (0) 132 #define SCG_SOSCDIV_DIV1_MASK ((0x7UL) << SCG_SOSCDIV_DIV1_SHIFT) 133 134 /* SCG RTC OSC Control Status Register */ 135 #define SCG_ROSC_CSR_ROSCVLD_SHIFT (24) 136 #define SCG_ROSC_CSR_ROSCVLD_MASK ((0x1UL) << SCG_ROSC_CSR_ROSCVLD_SHIFT) 137 138 #define SCG_SPLL_CSR_SPLLVLD_SHIFT (24) 139 #define SCG_SPLL_CSR_SPLLVLD_MASK ((0x1UL) << SCG_SPLL_CSR_SPLLVLD_SHIFT) 140 #define SCG_SPLL_CSR_SPLLEN_SHIFT (0) 141 #define SCG_SPLL_CSR_SPLLEN_MASK ((0x1UL) << SCG_SPLL_CSR_SPLLEN_SHIFT) 142 #define SCG_APLL_CSR_APLLEN_SHIFT (0) 143 #define SCG_APLL_CSR_APLLEN_MASK (0x1UL) 144 #define SCG_APLL_CSR_APLLVLD_MASK (0x01000000) 145 146 #define SCG_UPLL_CSR_UPLLVLD_MASK (0x01000000) 147 148 149 #define SCG_PLL_PFD3_GATE_MASK (0x80000000) 150 #define SCG_PLL_PFD2_GATE_MASK (0x00800000) 151 #define SCG_PLL_PFD1_GATE_MASK (0x00008000) 152 #define SCG_PLL_PFD0_GATE_MASK (0x00000080) 153 #define SCG_PLL_PFD3_VALID_MASK (0x40000000) 154 #define SCG_PLL_PFD2_VALID_MASK (0x00400000) 155 #define SCG_PLL_PFD1_VALID_MASK (0x00004000) 156 #define SCG_PLL_PFD0_VALID_MASK (0x00000040) 157 158 #define SCG_PLL_PFD0_FRAC_SHIFT (0) 159 #define SCG_PLL_PFD0_FRAC_MASK ((0x3F) << SCG_PLL_PFD0_FRAC_SHIFT) 160 #define SCG_PLL_PFD1_FRAC_SHIFT (8) 161 #define SCG_PLL_PFD1_FRAC_MASK ((0x3F) << SCG_PLL_PFD1_FRAC_SHIFT) 162 #define SCG_PLL_PFD2_FRAC_SHIFT (16) 163 #define SCG_PLL_PFD2_FRAC_MASK ((0x3F) << SCG_PLL_PFD2_FRAC_SHIFT) 164 #define SCG_PLL_PFD3_FRAC_SHIFT (24) 165 #define SCG_PLL_PFD3_FRAC_MASK ((0x3F) << SCG_PLL_PFD3_FRAC_SHIFT) 166 167 #define SCG_PLL_CFG_POSTDIV2_SHIFT (28) 168 #define SCG_PLL_CFG_POSTDIV2_MASK ((0xFUL) << SCG_PLL_CFG_POSTDIV2_SHIFT) 169 #define SCG_PLL_CFG_POSTDIV1_SHIFT (24) 170 #define SCG_PLL_CFG_POSTDIV1_MASK ((0xFUL) << SCG_PLL_CFG_POSTDIV1_SHIFT) 171 #define SCG_PLL_CFG_MULT_SHIFT (16) 172 #define SCG1_SPLL_CFG_MULT_MASK ((0x7FUL) << SCG_PLL_CFG_MULT_SHIFT) 173 #define SCG_APLL_CFG_MULT_MASK ((0x7FUL) << SCG_PLL_CFG_MULT_SHIFT) 174 #define SCG_PLL_CFG_PFDSEL_SHIFT (14) 175 #define SCG_PLL_CFG_PFDSEL_MASK ((0x3UL) << SCG_PLL_CFG_PFDSEL_SHIFT) 176 #define SCG_PLL_CFG_PREDIV_SHIFT (8) 177 #define SCG_PLL_CFG_PREDIV_MASK ((0x7UL) << SCG_PLL_CFG_PREDIV_SHIFT) 178 #define SCG_PLL_CFG_BYPASS_SHIFT (2) 179 /* 0: SPLL, 1: bypass */ 180 #define SCG_PLL_CFG_BYPASS_MASK ((0x1UL) << SCG_PLL_CFG_BYPASS_SHIFT) 181 #define SCG_PLL_CFG_PLLSEL_SHIFT (1) 182 /* 0: pll, 1: pfd */ 183 #define SCG_PLL_CFG_PLLSEL_MASK ((0x1UL) << SCG_PLL_CFG_PLLSEL_SHIFT) 184 #define SCG_PLL_CFG_CLKSRC_SHIFT (0) 185 /* 0: Sys-OSC, 1: FIRC */ 186 #define SCG_PLL_CFG_CLKSRC_MASK ((0x1UL) << SCG_PLL_CFG_CLKSRC_SHIFT) 187 #define SCG0_SPLL_CFG_MULT_SHIFT (17) 188 /* 0: Multiplier = 20, 1: Multiplier = 22 */ 189 #define SCG0_SPLL_CFG_MULT_MASK ((0x1UL) << SCG0_SPLL_CFG_MULT_SHIFT) 190 191 #define PLL_USB_EN_USB_CLKS_MASK (0x01 << 6) 192 #define PLL_USB_PWR_MASK (0x01 << 12) 193 #define PLL_USB_ENABLE_MASK (0x01 << 13) 194 #define PLL_USB_BYPASS_MASK (0x01 << 16) 195 #define PLL_USB_REG_ENABLE_MASK (0x01 << 21) 196 #define PLL_USB_DIV_SEL_MASK (0x07 << 22) 197 #define PLL_USB_LOCK_MASK (0x01 << 31) 198 199 enum scg_clk { 200 SCG_SOSC_CLK, 201 SCG_FIRC_CLK, 202 SCG_SIRC_CLK, 203 SCG_ROSC_CLK, 204 SCG_SIRC_DIV1_CLK, 205 SCG_SIRC_DIV2_CLK, 206 SCG_SIRC_DIV3_CLK, 207 SCG_FIRC_DIV1_CLK, 208 SCG_FIRC_DIV2_CLK, 209 SCG_FIRC_DIV3_CLK, 210 SCG_SOSC_DIV1_CLK, 211 SCG_SOSC_DIV2_CLK, 212 SCG_SOSC_DIV3_CLK, 213 SCG_CORE_CLK, 214 SCG_BUS_CLK, 215 SCG_SPLL_PFD0_CLK, 216 SCG_SPLL_PFD1_CLK, 217 SCG_SPLL_PFD2_CLK, 218 SCG_SPLL_PFD3_CLK, 219 SCG_DDR_CLK, 220 SCG_NIC0_CLK, 221 SCG_GPU_CLK, 222 SCG_NIC1_CLK, 223 SCG_NIC1_BUS_CLK, 224 SCG_NIC1_EXT_CLK, 225 SCG_APLL_PFD0_CLK, 226 SCG_APLL_PFD1_CLK, 227 SCG_APLL_PFD2_CLK, 228 SCG_APLL_PFD3_CLK, 229 USB_PLL_OUT, 230 MIPI_PLL_OUT 231 }; 232 233 enum scg_sys_src { 234 SCG_SCS_SYS_OSC = 1, 235 SCG_SCS_SLOW_IRC, 236 SCG_SCS_FAST_IRC, 237 SCG_SCS_RTC_OSC, 238 SCG_SCS_AUX_PLL, 239 SCG_SCS_SYS_PLL, 240 SCG_SCS_USBPHY_PLL, 241 }; 242 243 /* PLL supported by i.mx7ulp */ 244 enum pll_clocks { 245 PLL_M4_SPLL, /* M4 SPLL */ 246 PLL_M4_APLL, /* M4 APLL*/ 247 PLL_A7_SPLL, /* A7 SPLL */ 248 PLL_A7_APLL, /* A7 APLL */ 249 PLL_USB, /* USB PLL*/ 250 PLL_MIPI, /* MIPI PLL */ 251 }; 252 253 typedef struct scg_regs { 254 u32 verid; /* VERSION_ID */ 255 u32 param; /* PARAMETER */ 256 u32 rsvd11[2]; 257 258 u32 csr; /* Clock Status Register */ 259 u32 rccr; /* Run Clock Control Register */ 260 u32 vccr; /* VLPR Clock Control Register */ 261 u32 hccr; /* HSRUN Clock Control Register */ 262 u32 clkoutcnfg; /* SCG CLKOUT Configuration Register */ 263 u32 rsvd12[3]; 264 u32 ddrccr; /* SCG DDR Clock Control Register */ 265 u32 rsvd13[3]; 266 u32 nicccr; /* NIC Clock Control Register */ 267 u32 niccsr; /* NIC Clock Status Register */ 268 u32 rsvd10[46]; 269 270 u32 sosccsr; /* System OSC Control Status Register, offset 0x100 */ 271 u32 soscdiv; /* System OSC Divide Register */ 272 u32 sosccfg; /* System Oscillator Configuration Register */ 273 u32 sosctest; /* System Oscillator Test Register */ 274 u32 rsvd20[60]; 275 276 u32 sirccsr; /* Slow IRC Control Status Register, offset 0x200 */ 277 u32 sircdiv; /* Slow IRC Divide Register */ 278 u32 sirccfg; /* Slow IRC Configuration Register */ 279 u32 sirctrim; /* Slow IRC Trim Register */ 280 u32 loptrim; /* Low Power Oscillator Trim Register */ 281 u32 sirctest; /* Slow IRC Test Register */ 282 u32 rsvd30[58]; 283 284 u32 firccsr; /* Fast IRC Control Status Register, offset 0x300 */ 285 u32 fircdiv; 286 u32 firccfg; 287 u32 firctcfg; /* Fast IRC Trim Configuration Register */ 288 u32 firctriml; /* Fast IRC Trim Low Register */ 289 u32 firctrimh; 290 u32 fircstat; /* Fast IRC Status Register */ 291 u32 firctest; /* Fast IRC Test Register */ 292 u32 rsvd40[56]; 293 294 u32 rtccsr; /* RTC OSC Control Status Register, offset 0x400 */ 295 u32 rsvd50[63]; 296 297 u32 apllcsr; /* Auxiliary PLL Control Status Register, offset 0x500 */ 298 u32 aplldiv; /* Auxiliary PLL Divider Register */ 299 u32 apllcfg; /* Auxiliary PLL Configuration Register */ 300 u32 apllpfd; /* Auxiliary PLL PFD Register */ 301 u32 apllnum; /* Auxiliary PLL Numerator Register */ 302 u32 aplldenom; /* Auxiliary PLL Denominator Register */ 303 u32 apllss; /* Auxiliary PLL Spread Spectrum Register */ 304 u32 rsvd60[55]; 305 u32 apllock_cnfg; /* Auxiliary PLL LOCK Configuration Register */ 306 u32 rsvd61[1]; 307 308 u32 spllcsr; /* System PLL Control Status Register, offset 0x600 */ 309 u32 splldiv; /* System PLL Divide Register */ 310 u32 spllcfg; /* System PLL Configuration Register */ 311 u32 spllpfd; /* System PLL Test Register */ 312 u32 spllnum; /* System PLL Numerator Register */ 313 u32 splldenom; /* System PLL Denominator Register */ 314 u32 spllss; /* System PLL Spread Spectrum Register */ 315 u32 rsvd70[55]; 316 u32 spllock_cnfg; /* System PLL LOCK Configuration Register */ 317 u32 rsvd71[1]; 318 319 u32 upllcsr; /* USB PLL Control Status Register, offset 0x700 */ 320 u32 uplldiv; /* USB PLL Divide Register */ 321 u32 upllcfg; /* USB PLL Configuration Register */ 322 } scg_t, *scg_p; 323 324 u32 scg_clk_get_rate(enum scg_clk clk); 325 int scg_enable_pll_pfd(enum scg_clk clk, u32 frac); 326 int scg_enable_usb_pll(bool usb_control); 327 u32 decode_pll(enum pll_clocks pll); 328 329 void scg_a7_rccr_init(void); 330 void scg_a7_spll_init(void); 331 void scg_a7_ddrclk_init(void); 332 void scg_a7_firc_init(void); 333 void scg_a7_nicclk_init(void); 334 void scg_a7_sys_clk_sel(enum scg_sys_src clk); 335 void scg_a7_info(void); 336 void scg_a7_soscdiv_init(void); 337 void scg_a7_init_core_clk(void); 338 339 #endif 340