1 /* 2 * Copyright (c) 2013 Samsung Electronics Co., Ltd. 3 * Author: Mateusz Krawczuk <m.krawczuk@partner.samsung.com> 4 * 5 * Based on clock drivers for S3C64xx and Exynos4 SoCs. 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 * Common Clock Framework support for all S5PC110/S5PV210 SoCs. 12 */ 13 14 #include <linux/clk-provider.h> 15 #include <linux/of.h> 16 #include <linux/of_address.h> 17 #include <linux/syscore_ops.h> 18 19 #include "clk.h" 20 #include "clk-pll.h" 21 22 #include <dt-bindings/clock/s5pv210.h> 23 24 /* S5PC110/S5PV210 clock controller register offsets */ 25 #define APLL_LOCK 0x0000 26 #define MPLL_LOCK 0x0008 27 #define EPLL_LOCK 0x0010 28 #define VPLL_LOCK 0x0020 29 #define APLL_CON0 0x0100 30 #define APLL_CON1 0x0104 31 #define MPLL_CON 0x0108 32 #define EPLL_CON0 0x0110 33 #define EPLL_CON1 0x0114 34 #define VPLL_CON 0x0120 35 #define CLK_SRC0 0x0200 36 #define CLK_SRC1 0x0204 37 #define CLK_SRC2 0x0208 38 #define CLK_SRC3 0x020c 39 #define CLK_SRC4 0x0210 40 #define CLK_SRC5 0x0214 41 #define CLK_SRC6 0x0218 42 #define CLK_SRC_MASK0 0x0280 43 #define CLK_SRC_MASK1 0x0284 44 #define CLK_DIV0 0x0300 45 #define CLK_DIV1 0x0304 46 #define CLK_DIV2 0x0308 47 #define CLK_DIV3 0x030c 48 #define CLK_DIV4 0x0310 49 #define CLK_DIV5 0x0314 50 #define CLK_DIV6 0x0318 51 #define CLK_DIV7 0x031c 52 #define CLK_GATE_MAIN0 0x0400 53 #define CLK_GATE_MAIN1 0x0404 54 #define CLK_GATE_MAIN2 0x0408 55 #define CLK_GATE_PERI0 0x0420 56 #define CLK_GATE_PERI1 0x0424 57 #define CLK_GATE_SCLK0 0x0440 58 #define CLK_GATE_SCLK1 0x0444 59 #define CLK_GATE_IP0 0x0460 60 #define CLK_GATE_IP1 0x0464 61 #define CLK_GATE_IP2 0x0468 62 #define CLK_GATE_IP3 0x046c 63 #define CLK_GATE_IP4 0x0470 64 #define CLK_GATE_BLOCK 0x0480 65 #define CLK_GATE_IP5 0x0484 66 #define CLK_OUT 0x0500 67 #define MISC 0xe000 68 #define OM_STAT 0xe100 69 70 /* IDs of PLLs available on S5PV210/S5P6442 SoCs */ 71 enum { 72 apll, 73 mpll, 74 epll, 75 vpll, 76 }; 77 78 /* IDs of external clocks (used for legacy boards) */ 79 enum { 80 xxti, 81 xusbxti, 82 }; 83 84 static void __iomem *reg_base; 85 86 #ifdef CONFIG_PM_SLEEP 87 static struct samsung_clk_reg_dump *s5pv210_clk_dump; 88 89 /* List of registers that need to be preserved across suspend/resume. */ 90 static unsigned long s5pv210_clk_regs[] __initdata = { 91 CLK_SRC0, 92 CLK_SRC1, 93 CLK_SRC2, 94 CLK_SRC3, 95 CLK_SRC4, 96 CLK_SRC5, 97 CLK_SRC6, 98 CLK_SRC_MASK0, 99 CLK_SRC_MASK1, 100 CLK_DIV0, 101 CLK_DIV1, 102 CLK_DIV2, 103 CLK_DIV3, 104 CLK_DIV4, 105 CLK_DIV5, 106 CLK_DIV6, 107 CLK_DIV7, 108 CLK_GATE_MAIN0, 109 CLK_GATE_MAIN1, 110 CLK_GATE_MAIN2, 111 CLK_GATE_PERI0, 112 CLK_GATE_PERI1, 113 CLK_GATE_SCLK0, 114 CLK_GATE_SCLK1, 115 CLK_GATE_IP0, 116 CLK_GATE_IP1, 117 CLK_GATE_IP2, 118 CLK_GATE_IP3, 119 CLK_GATE_IP4, 120 CLK_GATE_IP5, 121 CLK_GATE_BLOCK, 122 APLL_LOCK, 123 MPLL_LOCK, 124 EPLL_LOCK, 125 VPLL_LOCK, 126 APLL_CON0, 127 APLL_CON1, 128 MPLL_CON, 129 EPLL_CON0, 130 EPLL_CON1, 131 VPLL_CON, 132 CLK_OUT, 133 }; 134 135 static int s5pv210_clk_suspend(void) 136 { 137 samsung_clk_save(reg_base, s5pv210_clk_dump, 138 ARRAY_SIZE(s5pv210_clk_regs)); 139 return 0; 140 } 141 142 static void s5pv210_clk_resume(void) 143 { 144 samsung_clk_restore(reg_base, s5pv210_clk_dump, 145 ARRAY_SIZE(s5pv210_clk_regs)); 146 } 147 148 static struct syscore_ops s5pv210_clk_syscore_ops = { 149 .suspend = s5pv210_clk_suspend, 150 .resume = s5pv210_clk_resume, 151 }; 152 153 static void s5pv210_clk_sleep_init(void) 154 { 155 s5pv210_clk_dump = 156 samsung_clk_alloc_reg_dump(s5pv210_clk_regs, 157 ARRAY_SIZE(s5pv210_clk_regs)); 158 if (!s5pv210_clk_dump) { 159 pr_warn("%s: Failed to allocate sleep save data\n", __func__); 160 return; 161 } 162 163 register_syscore_ops(&s5pv210_clk_syscore_ops); 164 } 165 #else 166 static inline void s5pv210_clk_sleep_init(void) { } 167 #endif 168 169 /* Mux parent lists. */ 170 static const char *const fin_pll_p[] __initconst = { 171 "xxti", 172 "xusbxti" 173 }; 174 175 static const char *const mout_apll_p[] __initconst = { 176 "fin_pll", 177 "fout_apll" 178 }; 179 180 static const char *const mout_mpll_p[] __initconst = { 181 "fin_pll", 182 "fout_mpll" 183 }; 184 185 static const char *const mout_epll_p[] __initconst = { 186 "fin_pll", 187 "fout_epll" 188 }; 189 190 static const char *const mout_vpllsrc_p[] __initconst = { 191 "fin_pll", 192 "sclk_hdmi27m" 193 }; 194 195 static const char *const mout_vpll_p[] __initconst = { 196 "mout_vpllsrc", 197 "fout_vpll" 198 }; 199 200 static const char *const mout_group1_p[] __initconst = { 201 "dout_a2m", 202 "mout_mpll", 203 "mout_epll", 204 "mout_vpll" 205 }; 206 207 static const char *const mout_group2_p[] __initconst = { 208 "xxti", 209 "xusbxti", 210 "sclk_hdmi27m", 211 "sclk_usbphy0", 212 "sclk_usbphy1", 213 "sclk_hdmiphy", 214 "mout_mpll", 215 "mout_epll", 216 "mout_vpll", 217 }; 218 219 static const char *const mout_audio0_p[] __initconst = { 220 "xxti", 221 "pcmcdclk0", 222 "sclk_hdmi27m", 223 "sclk_usbphy0", 224 "sclk_usbphy1", 225 "sclk_hdmiphy", 226 "mout_mpll", 227 "mout_epll", 228 "mout_vpll", 229 }; 230 231 static const char *const mout_audio1_p[] __initconst = { 232 "i2scdclk1", 233 "pcmcdclk1", 234 "sclk_hdmi27m", 235 "sclk_usbphy0", 236 "sclk_usbphy1", 237 "sclk_hdmiphy", 238 "mout_mpll", 239 "mout_epll", 240 "mout_vpll", 241 }; 242 243 static const char *const mout_audio2_p[] __initconst = { 244 "i2scdclk2", 245 "pcmcdclk2", 246 "sclk_hdmi27m", 247 "sclk_usbphy0", 248 "sclk_usbphy1", 249 "sclk_hdmiphy", 250 "mout_mpll", 251 "mout_epll", 252 "mout_vpll", 253 }; 254 255 static const char *const mout_spdif_p[] __initconst = { 256 "dout_audio0", 257 "dout_audio1", 258 "dout_audio3", 259 }; 260 261 static const char *const mout_group3_p[] __initconst = { 262 "mout_apll", 263 "mout_mpll" 264 }; 265 266 static const char *const mout_group4_p[] __initconst = { 267 "mout_mpll", 268 "dout_a2m" 269 }; 270 271 static const char *const mout_flash_p[] __initconst = { 272 "dout_hclkd", 273 "dout_hclkp" 274 }; 275 276 static const char *const mout_dac_p[] __initconst = { 277 "mout_vpll", 278 "sclk_hdmiphy" 279 }; 280 281 static const char *const mout_hdmi_p[] __initconst = { 282 "sclk_hdmiphy", 283 "dout_tblk" 284 }; 285 286 static const char *const mout_mixer_p[] __initconst = { 287 "mout_dac", 288 "mout_hdmi" 289 }; 290 291 static const char *const mout_vpll_6442_p[] __initconst = { 292 "fin_pll", 293 "fout_vpll" 294 }; 295 296 static const char *const mout_mixer_6442_p[] __initconst = { 297 "mout_vpll", 298 "dout_mixer" 299 }; 300 301 static const char *const mout_d0sync_6442_p[] __initconst = { 302 "mout_dsys", 303 "div_apll" 304 }; 305 306 static const char *const mout_d1sync_6442_p[] __initconst = { 307 "mout_psys", 308 "div_apll" 309 }; 310 311 static const char *const mout_group2_6442_p[] __initconst = { 312 "fin_pll", 313 "none", 314 "none", 315 "sclk_usbphy0", 316 "none", 317 "none", 318 "mout_mpll", 319 "mout_epll", 320 "mout_vpll", 321 }; 322 323 static const char *const mout_audio0_6442_p[] __initconst = { 324 "fin_pll", 325 "pcmcdclk0", 326 "none", 327 "sclk_usbphy0", 328 "none", 329 "none", 330 "mout_mpll", 331 "mout_epll", 332 "mout_vpll", 333 }; 334 335 static const char *const mout_audio1_6442_p[] __initconst = { 336 "i2scdclk1", 337 "pcmcdclk1", 338 "none", 339 "sclk_usbphy0", 340 "none", 341 "none", 342 "mout_mpll", 343 "mout_epll", 344 "mout_vpll", 345 "fin_pll", 346 }; 347 348 static const char *const mout_clksel_p[] __initconst = { 349 "fout_apll_clkout", 350 "fout_mpll_clkout", 351 "fout_epll", 352 "fout_vpll", 353 "sclk_usbphy0", 354 "sclk_usbphy1", 355 "sclk_hdmiphy", 356 "rtc", 357 "rtc_tick", 358 "dout_hclkm", 359 "dout_pclkm", 360 "dout_hclkd", 361 "dout_pclkd", 362 "dout_hclkp", 363 "dout_pclkp", 364 "dout_apll_clkout", 365 "dout_hpm", 366 "xxti", 367 "xusbxti", 368 "div_dclk" 369 }; 370 371 static const char *const mout_clksel_6442_p[] __initconst = { 372 "fout_apll_clkout", 373 "fout_mpll_clkout", 374 "fout_epll", 375 "fout_vpll", 376 "sclk_usbphy0", 377 "none", 378 "none", 379 "rtc", 380 "rtc_tick", 381 "none", 382 "none", 383 "dout_hclkd", 384 "dout_pclkd", 385 "dout_hclkp", 386 "dout_pclkp", 387 "dout_apll_clkout", 388 "none", 389 "fin_pll", 390 "none", 391 "div_dclk" 392 }; 393 394 static const char *const mout_clkout_p[] __initconst = { 395 "dout_clkout", 396 "none", 397 "xxti", 398 "xusbxti" 399 }; 400 401 /* Common fixed factor clocks. */ 402 static const struct samsung_fixed_factor_clock ffactor_clks[] __initconst = { 403 FFACTOR(FOUT_APLL_CLKOUT, "fout_apll_clkout", "fout_apll", 1, 4, 0), 404 FFACTOR(FOUT_MPLL_CLKOUT, "fout_mpll_clkout", "fout_mpll", 1, 2, 0), 405 FFACTOR(DOUT_APLL_CLKOUT, "dout_apll_clkout", "dout_apll", 1, 4, 0), 406 }; 407 408 /* PLL input mux (fin_pll), which needs to be registered before PLLs. */ 409 static const struct samsung_mux_clock early_mux_clks[] __initconst = { 410 MUX_F(FIN_PLL, "fin_pll", fin_pll_p, OM_STAT, 0, 1, 411 CLK_MUX_READ_ONLY, 0), 412 }; 413 414 /* Common clock muxes. */ 415 static const struct samsung_mux_clock mux_clks[] __initconst = { 416 MUX(MOUT_FLASH, "mout_flash", mout_flash_p, CLK_SRC0, 28, 1), 417 MUX(MOUT_PSYS, "mout_psys", mout_group4_p, CLK_SRC0, 24, 1), 418 MUX(MOUT_DSYS, "mout_dsys", mout_group4_p, CLK_SRC0, 20, 1), 419 MUX(MOUT_MSYS, "mout_msys", mout_group3_p, CLK_SRC0, 16, 1), 420 MUX(MOUT_EPLL, "mout_epll", mout_epll_p, CLK_SRC0, 8, 1), 421 MUX(MOUT_MPLL, "mout_mpll", mout_mpll_p, CLK_SRC0, 4, 1), 422 MUX(MOUT_APLL, "mout_apll", mout_apll_p, CLK_SRC0, 0, 1), 423 424 MUX(MOUT_CLKOUT, "mout_clkout", mout_clkout_p, MISC, 8, 2), 425 }; 426 427 /* S5PV210-specific clock muxes. */ 428 static const struct samsung_mux_clock s5pv210_mux_clks[] __initconst = { 429 MUX(MOUT_VPLL, "mout_vpll", mout_vpll_p, CLK_SRC0, 12, 1), 430 431 MUX(MOUT_VPLLSRC, "mout_vpllsrc", mout_vpllsrc_p, CLK_SRC1, 28, 1), 432 MUX(MOUT_CSIS, "mout_csis", mout_group2_p, CLK_SRC1, 24, 4), 433 MUX(MOUT_FIMD, "mout_fimd", mout_group2_p, CLK_SRC1, 20, 4), 434 MUX(MOUT_CAM1, "mout_cam1", mout_group2_p, CLK_SRC1, 16, 4), 435 MUX(MOUT_CAM0, "mout_cam0", mout_group2_p, CLK_SRC1, 12, 4), 436 MUX(MOUT_DAC, "mout_dac", mout_dac_p, CLK_SRC1, 8, 1), 437 MUX(MOUT_MIXER, "mout_mixer", mout_mixer_p, CLK_SRC1, 4, 1), 438 MUX(MOUT_HDMI, "mout_hdmi", mout_hdmi_p, CLK_SRC1, 0, 1), 439 440 MUX(MOUT_G2D, "mout_g2d", mout_group1_p, CLK_SRC2, 8, 2), 441 MUX(MOUT_MFC, "mout_mfc", mout_group1_p, CLK_SRC2, 4, 2), 442 MUX(MOUT_G3D, "mout_g3d", mout_group1_p, CLK_SRC2, 0, 2), 443 444 MUX(MOUT_FIMC2, "mout_fimc2", mout_group2_p, CLK_SRC3, 20, 4), 445 MUX(MOUT_FIMC1, "mout_fimc1", mout_group2_p, CLK_SRC3, 16, 4), 446 MUX(MOUT_FIMC0, "mout_fimc0", mout_group2_p, CLK_SRC3, 12, 4), 447 448 MUX(MOUT_UART3, "mout_uart3", mout_group2_p, CLK_SRC4, 28, 4), 449 MUX(MOUT_UART2, "mout_uart2", mout_group2_p, CLK_SRC4, 24, 4), 450 MUX(MOUT_UART1, "mout_uart1", mout_group2_p, CLK_SRC4, 20, 4), 451 MUX(MOUT_UART0, "mout_uart0", mout_group2_p, CLK_SRC4, 16, 4), 452 MUX(MOUT_MMC3, "mout_mmc3", mout_group2_p, CLK_SRC4, 12, 4), 453 MUX(MOUT_MMC2, "mout_mmc2", mout_group2_p, CLK_SRC4, 8, 4), 454 MUX(MOUT_MMC1, "mout_mmc1", mout_group2_p, CLK_SRC4, 4, 4), 455 MUX(MOUT_MMC0, "mout_mmc0", mout_group2_p, CLK_SRC4, 0, 4), 456 457 MUX(MOUT_PWM, "mout_pwm", mout_group2_p, CLK_SRC5, 12, 4), 458 MUX(MOUT_SPI1, "mout_spi1", mout_group2_p, CLK_SRC5, 4, 4), 459 MUX(MOUT_SPI0, "mout_spi0", mout_group2_p, CLK_SRC5, 0, 4), 460 461 MUX(MOUT_DMC0, "mout_dmc0", mout_group1_p, CLK_SRC6, 24, 2), 462 MUX(MOUT_PWI, "mout_pwi", mout_group2_p, CLK_SRC6, 20, 4), 463 MUX(MOUT_HPM, "mout_hpm", mout_group3_p, CLK_SRC6, 16, 1), 464 MUX(MOUT_SPDIF, "mout_spdif", mout_spdif_p, CLK_SRC6, 12, 2), 465 MUX(MOUT_AUDIO2, "mout_audio2", mout_audio2_p, CLK_SRC6, 8, 4), 466 MUX(MOUT_AUDIO1, "mout_audio1", mout_audio1_p, CLK_SRC6, 4, 4), 467 MUX(MOUT_AUDIO0, "mout_audio0", mout_audio0_p, CLK_SRC6, 0, 4), 468 469 MUX(MOUT_CLKSEL, "mout_clksel", mout_clksel_p, CLK_OUT, 12, 5), 470 }; 471 472 /* S5P6442-specific clock muxes. */ 473 static const struct samsung_mux_clock s5p6442_mux_clks[] __initconst = { 474 MUX(MOUT_VPLL, "mout_vpll", mout_vpll_6442_p, CLK_SRC0, 12, 1), 475 476 MUX(MOUT_FIMD, "mout_fimd", mout_group2_6442_p, CLK_SRC1, 20, 4), 477 MUX(MOUT_CAM1, "mout_cam1", mout_group2_6442_p, CLK_SRC1, 16, 4), 478 MUX(MOUT_CAM0, "mout_cam0", mout_group2_6442_p, CLK_SRC1, 12, 4), 479 MUX(MOUT_MIXER, "mout_mixer", mout_mixer_6442_p, CLK_SRC1, 4, 1), 480 481 MUX(MOUT_D0SYNC, "mout_d0sync", mout_d0sync_6442_p, CLK_SRC2, 28, 1), 482 MUX(MOUT_D1SYNC, "mout_d1sync", mout_d1sync_6442_p, CLK_SRC2, 24, 1), 483 484 MUX(MOUT_FIMC2, "mout_fimc2", mout_group2_6442_p, CLK_SRC3, 20, 4), 485 MUX(MOUT_FIMC1, "mout_fimc1", mout_group2_6442_p, CLK_SRC3, 16, 4), 486 MUX(MOUT_FIMC0, "mout_fimc0", mout_group2_6442_p, CLK_SRC3, 12, 4), 487 488 MUX(MOUT_UART2, "mout_uart2", mout_group2_6442_p, CLK_SRC4, 24, 4), 489 MUX(MOUT_UART1, "mout_uart1", mout_group2_6442_p, CLK_SRC4, 20, 4), 490 MUX(MOUT_UART0, "mout_uart0", mout_group2_6442_p, CLK_SRC4, 16, 4), 491 MUX(MOUT_MMC2, "mout_mmc2", mout_group2_6442_p, CLK_SRC4, 8, 4), 492 MUX(MOUT_MMC1, "mout_mmc1", mout_group2_6442_p, CLK_SRC4, 4, 4), 493 MUX(MOUT_MMC0, "mout_mmc0", mout_group2_6442_p, CLK_SRC4, 0, 4), 494 495 MUX(MOUT_PWM, "mout_pwm", mout_group2_6442_p, CLK_SRC5, 12, 4), 496 MUX(MOUT_SPI0, "mout_spi0", mout_group2_6442_p, CLK_SRC5, 0, 4), 497 498 MUX(MOUT_AUDIO1, "mout_audio1", mout_audio1_6442_p, CLK_SRC6, 4, 4), 499 MUX(MOUT_AUDIO0, "mout_audio0", mout_audio0_6442_p, CLK_SRC6, 0, 4), 500 501 MUX(MOUT_CLKSEL, "mout_clksel", mout_clksel_6442_p, CLK_OUT, 12, 5), 502 }; 503 504 /* S5PV210-specific fixed rate clocks generated inside the SoC. */ 505 static const struct samsung_fixed_rate_clock s5pv210_frate_clks[] __initconst = { 506 FRATE(SCLK_HDMI27M, "sclk_hdmi27m", NULL, 0, 27000000), 507 FRATE(SCLK_HDMIPHY, "sclk_hdmiphy", NULL, 0, 27000000), 508 FRATE(SCLK_USBPHY0, "sclk_usbphy0", NULL, 0, 48000000), 509 FRATE(SCLK_USBPHY1, "sclk_usbphy1", NULL, 0, 48000000), 510 }; 511 512 /* S5P6442-specific fixed rate clocks generated inside the SoC. */ 513 static const struct samsung_fixed_rate_clock s5p6442_frate_clks[] __initconst = { 514 FRATE(SCLK_USBPHY0, "sclk_usbphy0", NULL, 0, 30000000), 515 }; 516 517 /* Common clock dividers. */ 518 static const struct samsung_div_clock div_clks[] __initconst = { 519 DIV(DOUT_PCLKP, "dout_pclkp", "dout_hclkp", CLK_DIV0, 28, 3), 520 DIV(DOUT_PCLKD, "dout_pclkd", "dout_hclkd", CLK_DIV0, 20, 3), 521 DIV(DOUT_A2M, "dout_a2m", "mout_apll", CLK_DIV0, 4, 3), 522 DIV(DOUT_APLL, "dout_apll", "mout_msys", CLK_DIV0, 0, 3), 523 524 DIV(DOUT_FIMD, "dout_fimd", "mout_fimd", CLK_DIV1, 20, 4), 525 DIV(DOUT_CAM1, "dout_cam1", "mout_cam1", CLK_DIV1, 16, 4), 526 DIV(DOUT_CAM0, "dout_cam0", "mout_cam0", CLK_DIV1, 12, 4), 527 528 DIV(DOUT_FIMC2, "dout_fimc2", "mout_fimc2", CLK_DIV3, 20, 4), 529 DIV(DOUT_FIMC1, "dout_fimc1", "mout_fimc1", CLK_DIV3, 16, 4), 530 DIV(DOUT_FIMC0, "dout_fimc0", "mout_fimc0", CLK_DIV3, 12, 4), 531 532 DIV(DOUT_UART2, "dout_uart2", "mout_uart2", CLK_DIV4, 24, 4), 533 DIV(DOUT_UART1, "dout_uart1", "mout_uart1", CLK_DIV4, 20, 4), 534 DIV(DOUT_UART0, "dout_uart0", "mout_uart0", CLK_DIV4, 16, 4), 535 DIV(DOUT_MMC2, "dout_mmc2", "mout_mmc2", CLK_DIV4, 8, 4), 536 DIV(DOUT_MMC1, "dout_mmc1", "mout_mmc1", CLK_DIV4, 4, 4), 537 DIV(DOUT_MMC0, "dout_mmc0", "mout_mmc0", CLK_DIV4, 0, 4), 538 539 DIV(DOUT_PWM, "dout_pwm", "mout_pwm", CLK_DIV5, 12, 4), 540 DIV(DOUT_SPI0, "dout_spi0", "mout_spi0", CLK_DIV5, 0, 4), 541 542 DIV(DOUT_FLASH, "dout_flash", "mout_flash", CLK_DIV6, 12, 3), 543 DIV(DOUT_AUDIO1, "dout_audio1", "mout_audio1", CLK_DIV6, 4, 4), 544 DIV(DOUT_AUDIO0, "dout_audio0", "mout_audio0", CLK_DIV6, 0, 4), 545 546 DIV(DOUT_CLKOUT, "dout_clkout", "mout_clksel", CLK_OUT, 20, 4), 547 }; 548 549 /* S5PV210-specific clock dividers. */ 550 static const struct samsung_div_clock s5pv210_div_clks[] __initconst = { 551 DIV(DOUT_HCLKP, "dout_hclkp", "mout_psys", CLK_DIV0, 24, 4), 552 DIV(DOUT_HCLKD, "dout_hclkd", "mout_dsys", CLK_DIV0, 16, 4), 553 DIV(DOUT_PCLKM, "dout_pclkm", "dout_hclkm", CLK_DIV0, 12, 3), 554 DIV(DOUT_HCLKM, "dout_hclkm", "dout_apll", CLK_DIV0, 8, 3), 555 556 DIV(DOUT_CSIS, "dout_csis", "mout_csis", CLK_DIV1, 28, 4), 557 DIV(DOUT_TBLK, "dout_tblk", "mout_vpll", CLK_DIV1, 0, 4), 558 559 DIV(DOUT_G2D, "dout_g2d", "mout_g2d", CLK_DIV2, 8, 4), 560 DIV(DOUT_MFC, "dout_mfc", "mout_mfc", CLK_DIV2, 4, 4), 561 DIV(DOUT_G3D, "dout_g3d", "mout_g3d", CLK_DIV2, 0, 4), 562 563 DIV(DOUT_UART3, "dout_uart3", "mout_uart3", CLK_DIV4, 28, 4), 564 DIV(DOUT_MMC3, "dout_mmc3", "mout_mmc3", CLK_DIV4, 12, 4), 565 566 DIV(DOUT_SPI1, "dout_spi1", "mout_spi1", CLK_DIV5, 4, 4), 567 568 DIV(DOUT_DMC0, "dout_dmc0", "mout_dmc0", CLK_DIV6, 28, 4), 569 DIV(DOUT_PWI, "dout_pwi", "mout_pwi", CLK_DIV6, 24, 4), 570 DIV(DOUT_HPM, "dout_hpm", "dout_copy", CLK_DIV6, 20, 3), 571 DIV(DOUT_COPY, "dout_copy", "mout_hpm", CLK_DIV6, 16, 3), 572 DIV(DOUT_AUDIO2, "dout_audio2", "mout_audio2", CLK_DIV6, 8, 4), 573 574 DIV(DOUT_DPM, "dout_dpm", "dout_pclkp", CLK_DIV7, 8, 7), 575 DIV(DOUT_DVSEM, "dout_dvsem", "dout_pclkp", CLK_DIV7, 0, 7), 576 }; 577 578 /* S5P6442-specific clock dividers. */ 579 static const struct samsung_div_clock s5p6442_div_clks[] __initconst = { 580 DIV(DOUT_HCLKP, "dout_hclkp", "mout_d1sync", CLK_DIV0, 24, 4), 581 DIV(DOUT_HCLKD, "dout_hclkd", "mout_d0sync", CLK_DIV0, 16, 4), 582 583 DIV(DOUT_MIXER, "dout_mixer", "mout_vpll", CLK_DIV1, 0, 4), 584 }; 585 586 /* Common clock gates. */ 587 static const struct samsung_gate_clock gate_clks[] __initconst = { 588 GATE(CLK_ROTATOR, "rotator", "dout_hclkd", CLK_GATE_IP0, 29, 0, 0), 589 GATE(CLK_FIMC2, "fimc2", "dout_hclkd", CLK_GATE_IP0, 26, 0, 0), 590 GATE(CLK_FIMC1, "fimc1", "dout_hclkd", CLK_GATE_IP0, 25, 0, 0), 591 GATE(CLK_FIMC0, "fimc0", "dout_hclkd", CLK_GATE_IP0, 24, 0, 0), 592 GATE(CLK_PDMA0, "pdma0", "dout_hclkp", CLK_GATE_IP0, 3, 0, 0), 593 GATE(CLK_MDMA, "mdma", "dout_hclkd", CLK_GATE_IP0, 2, 0, 0), 594 595 GATE(CLK_SROMC, "sromc", "dout_hclkp", CLK_GATE_IP1, 26, 0, 0), 596 GATE(CLK_NANDXL, "nandxl", "dout_hclkp", CLK_GATE_IP1, 24, 0, 0), 597 GATE(CLK_USB_OTG, "usb_otg", "dout_hclkp", CLK_GATE_IP1, 16, 0, 0), 598 GATE(CLK_TVENC, "tvenc", "dout_hclkd", CLK_GATE_IP1, 10, 0, 0), 599 GATE(CLK_MIXER, "mixer", "dout_hclkd", CLK_GATE_IP1, 9, 0, 0), 600 GATE(CLK_VP, "vp", "dout_hclkd", CLK_GATE_IP1, 8, 0, 0), 601 GATE(CLK_FIMD, "fimd", "dout_hclkd", CLK_GATE_IP1, 0, 0, 0), 602 603 GATE(CLK_HSMMC2, "hsmmc2", "dout_hclkp", CLK_GATE_IP2, 18, 0, 0), 604 GATE(CLK_HSMMC1, "hsmmc1", "dout_hclkp", CLK_GATE_IP2, 17, 0, 0), 605 GATE(CLK_HSMMC0, "hsmmc0", "dout_hclkp", CLK_GATE_IP2, 16, 0, 0), 606 GATE(CLK_MODEMIF, "modemif", "dout_hclkp", CLK_GATE_IP2, 9, 0, 0), 607 GATE(CLK_SECSS, "secss", "dout_hclkp", CLK_GATE_IP2, 0, 0, 0), 608 609 GATE(CLK_PCM1, "pcm1", "dout_pclkp", CLK_GATE_IP3, 29, 0, 0), 610 GATE(CLK_PCM0, "pcm0", "dout_pclkp", CLK_GATE_IP3, 28, 0, 0), 611 GATE(CLK_TSADC, "tsadc", "dout_pclkp", CLK_GATE_IP3, 24, 0, 0), 612 GATE(CLK_PWM, "pwm", "dout_pclkp", CLK_GATE_IP3, 23, 0, 0), 613 GATE(CLK_WDT, "watchdog", "dout_pclkp", CLK_GATE_IP3, 22, 0, 0), 614 GATE(CLK_KEYIF, "keyif", "dout_pclkp", CLK_GATE_IP3, 21, 0, 0), 615 GATE(CLK_UART2, "uart2", "dout_pclkp", CLK_GATE_IP3, 19, 0, 0), 616 GATE(CLK_UART1, "uart1", "dout_pclkp", CLK_GATE_IP3, 18, 0, 0), 617 GATE(CLK_UART0, "uart0", "dout_pclkp", CLK_GATE_IP3, 17, 0, 0), 618 GATE(CLK_SYSTIMER, "systimer", "dout_pclkp", CLK_GATE_IP3, 16, 0, 0), 619 GATE(CLK_RTC, "rtc", "dout_pclkp", CLK_GATE_IP3, 15, 0, 0), 620 GATE(CLK_SPI0, "spi0", "dout_pclkp", CLK_GATE_IP3, 12, 0, 0), 621 GATE(CLK_I2C2, "i2c2", "dout_pclkp", CLK_GATE_IP3, 9, 0, 0), 622 GATE(CLK_I2C0, "i2c0", "dout_pclkp", CLK_GATE_IP3, 7, 0, 0), 623 GATE(CLK_I2S1, "i2s1", "dout_pclkp", CLK_GATE_IP3, 5, 0, 0), 624 GATE(CLK_I2S0, "i2s0", "dout_pclkp", CLK_GATE_IP3, 4, 0, 0), 625 626 GATE(CLK_SECKEY, "seckey", "dout_pclkp", CLK_GATE_IP4, 3, 0, 0), 627 GATE(CLK_CHIPID, "chipid", "dout_pclkp", CLK_GATE_IP4, 0, 0, 0), 628 629 GATE(SCLK_AUDIO1, "sclk_audio1", "dout_audio1", CLK_SRC_MASK0, 25, 630 CLK_SET_RATE_PARENT, 0), 631 GATE(SCLK_AUDIO0, "sclk_audio0", "dout_audio0", CLK_SRC_MASK0, 24, 632 CLK_SET_RATE_PARENT, 0), 633 GATE(SCLK_PWM, "sclk_pwm", "dout_pwm", CLK_SRC_MASK0, 19, 634 CLK_SET_RATE_PARENT, 0), 635 GATE(SCLK_SPI0, "sclk_spi0", "dout_spi0", CLK_SRC_MASK0, 16, 636 CLK_SET_RATE_PARENT, 0), 637 GATE(SCLK_UART2, "sclk_uart2", "dout_uart2", CLK_SRC_MASK0, 14, 638 CLK_SET_RATE_PARENT, 0), 639 GATE(SCLK_UART1, "sclk_uart1", "dout_uart1", CLK_SRC_MASK0, 13, 640 CLK_SET_RATE_PARENT, 0), 641 GATE(SCLK_UART0, "sclk_uart0", "dout_uart0", CLK_SRC_MASK0, 12, 642 CLK_SET_RATE_PARENT, 0), 643 GATE(SCLK_MMC2, "sclk_mmc2", "dout_mmc2", CLK_SRC_MASK0, 10, 644 CLK_SET_RATE_PARENT, 0), 645 GATE(SCLK_MMC1, "sclk_mmc1", "dout_mmc1", CLK_SRC_MASK0, 9, 646 CLK_SET_RATE_PARENT, 0), 647 GATE(SCLK_MMC0, "sclk_mmc0", "dout_mmc0", CLK_SRC_MASK0, 8, 648 CLK_SET_RATE_PARENT, 0), 649 GATE(SCLK_FIMD, "sclk_fimd", "dout_fimd", CLK_SRC_MASK0, 5, 650 CLK_SET_RATE_PARENT, 0), 651 GATE(SCLK_CAM1, "sclk_cam1", "dout_cam1", CLK_SRC_MASK0, 4, 652 CLK_SET_RATE_PARENT, 0), 653 GATE(SCLK_CAM0, "sclk_cam0", "dout_cam0", CLK_SRC_MASK0, 3, 654 CLK_SET_RATE_PARENT, 0), 655 GATE(SCLK_MIXER, "sclk_mixer", "mout_mixer", CLK_SRC_MASK0, 1, 656 CLK_SET_RATE_PARENT, 0), 657 658 GATE(SCLK_FIMC2, "sclk_fimc2", "dout_fimc2", CLK_SRC_MASK1, 4, 659 CLK_SET_RATE_PARENT, 0), 660 GATE(SCLK_FIMC1, "sclk_fimc1", "dout_fimc1", CLK_SRC_MASK1, 3, 661 CLK_SET_RATE_PARENT, 0), 662 GATE(SCLK_FIMC0, "sclk_fimc0", "dout_fimc0", CLK_SRC_MASK1, 2, 663 CLK_SET_RATE_PARENT, 0), 664 }; 665 666 /* S5PV210-specific clock gates. */ 667 static const struct samsung_gate_clock s5pv210_gate_clks[] __initconst = { 668 GATE(CLK_CSIS, "clk_csis", "dout_hclkd", CLK_GATE_IP0, 31, 0, 0), 669 GATE(CLK_MFC, "mfc", "dout_hclkm", CLK_GATE_IP0, 16, 0, 0), 670 GATE(CLK_G2D, "g2d", "dout_hclkd", CLK_GATE_IP0, 12, 0, 0), 671 GATE(CLK_G3D, "g3d", "dout_hclkm", CLK_GATE_IP0, 8, 0, 0), 672 GATE(CLK_IMEM, "imem", "dout_hclkm", CLK_GATE_IP0, 5, 0, 0), 673 GATE(CLK_PDMA1, "pdma1", "dout_hclkp", CLK_GATE_IP0, 4, 0, 0), 674 675 GATE(CLK_NFCON, "nfcon", "dout_hclkp", CLK_GATE_IP1, 28, 0, 0), 676 GATE(CLK_CFCON, "cfcon", "dout_hclkp", CLK_GATE_IP1, 25, 0, 0), 677 GATE(CLK_USB_HOST, "usb_host", "dout_hclkp", CLK_GATE_IP1, 17, 0, 0), 678 GATE(CLK_HDMI, "hdmi", "dout_hclkd", CLK_GATE_IP1, 11, 0, 0), 679 GATE(CLK_DSIM, "dsim", "dout_pclkd", CLK_GATE_IP1, 2, 0, 0), 680 681 GATE(CLK_TZIC3, "tzic3", "dout_hclkm", CLK_GATE_IP2, 31, 0, 0), 682 GATE(CLK_TZIC2, "tzic2", "dout_hclkm", CLK_GATE_IP2, 30, 0, 0), 683 GATE(CLK_TZIC1, "tzic1", "dout_hclkm", CLK_GATE_IP2, 29, 0, 0), 684 GATE(CLK_TZIC0, "tzic0", "dout_hclkm", CLK_GATE_IP2, 28, 0, 0), 685 GATE(CLK_TSI, "tsi", "dout_hclkd", CLK_GATE_IP2, 20, 0, 0), 686 GATE(CLK_HSMMC3, "hsmmc3", "dout_hclkp", CLK_GATE_IP2, 19, 0, 0), 687 GATE(CLK_JTAG, "jtag", "dout_hclkp", CLK_GATE_IP2, 11, 0, 0), 688 GATE(CLK_CORESIGHT, "coresight", "dout_pclkp", CLK_GATE_IP2, 8, 0, 0), 689 GATE(CLK_SDM, "sdm", "dout_pclkm", CLK_GATE_IP2, 1, 0, 0), 690 691 GATE(CLK_PCM2, "pcm2", "dout_pclkp", CLK_GATE_IP3, 30, 0, 0), 692 GATE(CLK_UART3, "uart3", "dout_pclkp", CLK_GATE_IP3, 20, 0, 0), 693 GATE(CLK_SPI1, "spi1", "dout_pclkp", CLK_GATE_IP3, 13, 0, 0), 694 GATE(CLK_I2C_HDMI_PHY, "i2c_hdmi_phy", "dout_pclkd", 695 CLK_GATE_IP3, 11, 0, 0), 696 GATE(CLK_I2C1, "i2c1", "dout_pclkd", CLK_GATE_IP3, 10, 0, 0), 697 GATE(CLK_I2S2, "i2s2", "dout_pclkp", CLK_GATE_IP3, 6, 0, 0), 698 GATE(CLK_AC97, "ac97", "dout_pclkp", CLK_GATE_IP3, 1, 0, 0), 699 GATE(CLK_SPDIF, "spdif", "dout_pclkp", CLK_GATE_IP3, 0, 0, 0), 700 701 GATE(CLK_TZPC3, "tzpc.3", "dout_pclkd", CLK_GATE_IP4, 8, 0, 0), 702 GATE(CLK_TZPC2, "tzpc.2", "dout_pclkd", CLK_GATE_IP4, 7, 0, 0), 703 GATE(CLK_TZPC1, "tzpc.1", "dout_pclkp", CLK_GATE_IP4, 6, 0, 0), 704 GATE(CLK_TZPC0, "tzpc.0", "dout_pclkm", CLK_GATE_IP4, 5, 0, 0), 705 GATE(CLK_IEM_APC, "iem_apc", "dout_pclkp", CLK_GATE_IP4, 2, 0, 0), 706 GATE(CLK_IEM_IEC, "iem_iec", "dout_pclkp", CLK_GATE_IP4, 1, 0, 0), 707 708 GATE(CLK_JPEG, "jpeg", "dout_hclkd", CLK_GATE_IP5, 29, 0, 0), 709 710 GATE(SCLK_SPDIF, "sclk_spdif", "mout_spdif", CLK_SRC_MASK0, 27, 711 CLK_SET_RATE_PARENT, 0), 712 GATE(SCLK_AUDIO2, "sclk_audio2", "dout_audio2", CLK_SRC_MASK0, 26, 713 CLK_SET_RATE_PARENT, 0), 714 GATE(SCLK_SPI1, "sclk_spi1", "dout_spi1", CLK_SRC_MASK0, 17, 715 CLK_SET_RATE_PARENT, 0), 716 GATE(SCLK_UART3, "sclk_uart3", "dout_uart3", CLK_SRC_MASK0, 15, 717 CLK_SET_RATE_PARENT, 0), 718 GATE(SCLK_MMC3, "sclk_mmc3", "dout_mmc3", CLK_SRC_MASK0, 11, 719 CLK_SET_RATE_PARENT, 0), 720 GATE(SCLK_CSIS, "sclk_csis", "dout_csis", CLK_SRC_MASK0, 6, 721 CLK_SET_RATE_PARENT, 0), 722 GATE(SCLK_DAC, "sclk_dac", "mout_dac", CLK_SRC_MASK0, 2, 723 CLK_SET_RATE_PARENT, 0), 724 GATE(SCLK_HDMI, "sclk_hdmi", "mout_hdmi", CLK_SRC_MASK0, 0, 725 CLK_SET_RATE_PARENT, 0), 726 }; 727 728 /* S5P6442-specific clock gates. */ 729 static const struct samsung_gate_clock s5p6442_gate_clks[] __initconst = { 730 GATE(CLK_JPEG, "jpeg", "dout_hclkd", CLK_GATE_IP0, 28, 0, 0), 731 GATE(CLK_MFC, "mfc", "dout_hclkd", CLK_GATE_IP0, 16, 0, 0), 732 GATE(CLK_G2D, "g2d", "dout_hclkd", CLK_GATE_IP0, 12, 0, 0), 733 GATE(CLK_G3D, "g3d", "dout_hclkd", CLK_GATE_IP0, 8, 0, 0), 734 GATE(CLK_IMEM, "imem", "dout_hclkd", CLK_GATE_IP0, 5, 0, 0), 735 736 GATE(CLK_ETB, "etb", "dout_hclkd", CLK_GATE_IP1, 31, 0, 0), 737 GATE(CLK_ETM, "etm", "dout_hclkd", CLK_GATE_IP1, 30, 0, 0), 738 739 GATE(CLK_I2C1, "i2c1", "dout_pclkp", CLK_GATE_IP3, 8, 0, 0), 740 741 GATE(SCLK_DAC, "sclk_dac", "mout_vpll", CLK_SRC_MASK0, 2, 742 CLK_SET_RATE_PARENT, 0), 743 }; 744 745 /* 746 * Clock aliases for legacy clkdev look-up. 747 * NOTE: Needed only to support legacy board files. 748 */ 749 static const struct samsung_clock_alias s5pv210_aliases[] __initconst = { 750 ALIAS(DOUT_APLL, NULL, "armclk"), 751 ALIAS(DOUT_HCLKM, NULL, "hclk_msys"), 752 ALIAS(MOUT_DMC0, NULL, "sclk_dmc0"), 753 }; 754 755 /* S5PV210-specific PLLs. */ 756 static const struct samsung_pll_clock s5pv210_pll_clks[] __initconst = { 757 [apll] = PLL(pll_4508, FOUT_APLL, "fout_apll", "fin_pll", 758 APLL_LOCK, APLL_CON0, NULL), 759 [mpll] = PLL(pll_4502, FOUT_MPLL, "fout_mpll", "fin_pll", 760 MPLL_LOCK, MPLL_CON, NULL), 761 [epll] = PLL(pll_4600, FOUT_EPLL, "fout_epll", "fin_pll", 762 EPLL_LOCK, EPLL_CON0, NULL), 763 [vpll] = PLL(pll_4502, FOUT_VPLL, "fout_vpll", "mout_vpllsrc", 764 VPLL_LOCK, VPLL_CON, NULL), 765 }; 766 767 /* S5P6442-specific PLLs. */ 768 static const struct samsung_pll_clock s5p6442_pll_clks[] __initconst = { 769 [apll] = PLL(pll_4502, FOUT_APLL, "fout_apll", "fin_pll", 770 APLL_LOCK, APLL_CON0, NULL), 771 [mpll] = PLL(pll_4502, FOUT_MPLL, "fout_mpll", "fin_pll", 772 MPLL_LOCK, MPLL_CON, NULL), 773 [epll] = PLL(pll_4500, FOUT_EPLL, "fout_epll", "fin_pll", 774 EPLL_LOCK, EPLL_CON0, NULL), 775 [vpll] = PLL(pll_4500, FOUT_VPLL, "fout_vpll", "fin_pll", 776 VPLL_LOCK, VPLL_CON, NULL), 777 }; 778 779 static void __init __s5pv210_clk_init(struct device_node *np, 780 unsigned long xxti_f, 781 unsigned long xusbxti_f, 782 bool is_s5p6442) 783 { 784 struct samsung_clk_provider *ctx; 785 786 ctx = samsung_clk_init(np, reg_base, NR_CLKS); 787 if (!ctx) 788 panic("%s: unable to allocate context.\n", __func__); 789 790 samsung_clk_register_mux(ctx, early_mux_clks, 791 ARRAY_SIZE(early_mux_clks)); 792 793 if (is_s5p6442) { 794 samsung_clk_register_fixed_rate(ctx, s5p6442_frate_clks, 795 ARRAY_SIZE(s5p6442_frate_clks)); 796 samsung_clk_register_pll(ctx, s5p6442_pll_clks, 797 ARRAY_SIZE(s5p6442_pll_clks), reg_base); 798 samsung_clk_register_mux(ctx, s5p6442_mux_clks, 799 ARRAY_SIZE(s5p6442_mux_clks)); 800 samsung_clk_register_div(ctx, s5p6442_div_clks, 801 ARRAY_SIZE(s5p6442_div_clks)); 802 samsung_clk_register_gate(ctx, s5p6442_gate_clks, 803 ARRAY_SIZE(s5p6442_gate_clks)); 804 } else { 805 samsung_clk_register_fixed_rate(ctx, s5pv210_frate_clks, 806 ARRAY_SIZE(s5pv210_frate_clks)); 807 samsung_clk_register_pll(ctx, s5pv210_pll_clks, 808 ARRAY_SIZE(s5pv210_pll_clks), reg_base); 809 samsung_clk_register_mux(ctx, s5pv210_mux_clks, 810 ARRAY_SIZE(s5pv210_mux_clks)); 811 samsung_clk_register_div(ctx, s5pv210_div_clks, 812 ARRAY_SIZE(s5pv210_div_clks)); 813 samsung_clk_register_gate(ctx, s5pv210_gate_clks, 814 ARRAY_SIZE(s5pv210_gate_clks)); 815 } 816 817 samsung_clk_register_mux(ctx, mux_clks, ARRAY_SIZE(mux_clks)); 818 samsung_clk_register_div(ctx, div_clks, ARRAY_SIZE(div_clks)); 819 samsung_clk_register_gate(ctx, gate_clks, ARRAY_SIZE(gate_clks)); 820 821 samsung_clk_register_fixed_factor(ctx, ffactor_clks, 822 ARRAY_SIZE(ffactor_clks)); 823 824 samsung_clk_register_alias(ctx, s5pv210_aliases, 825 ARRAY_SIZE(s5pv210_aliases)); 826 827 s5pv210_clk_sleep_init(); 828 829 samsung_clk_of_add_provider(np, ctx); 830 831 pr_info("%s clocks: mout_apll = %ld, mout_mpll = %ld\n" 832 "\tmout_epll = %ld, mout_vpll = %ld\n", 833 is_s5p6442 ? "S5P6442" : "S5PV210", 834 _get_rate("mout_apll"), _get_rate("mout_mpll"), 835 _get_rate("mout_epll"), _get_rate("mout_vpll")); 836 } 837 838 static void __init s5pv210_clk_dt_init(struct device_node *np) 839 { 840 reg_base = of_iomap(np, 0); 841 if (!reg_base) 842 panic("%s: failed to map registers\n", __func__); 843 844 __s5pv210_clk_init(np, 0, 0, false); 845 } 846 CLK_OF_DECLARE(s5pv210_clk, "samsung,s5pv210-clock", s5pv210_clk_dt_init); 847 848 static void __init s5p6442_clk_dt_init(struct device_node *np) 849 { 850 reg_base = of_iomap(np, 0); 851 if (!reg_base) 852 panic("%s: failed to map registers\n", __func__); 853 854 __s5pv210_clk_init(np, 0, 0, true); 855 } 856 CLK_OF_DECLARE(s5p6442_clk, "samsung,s5p6442-clock", s5p6442_clk_dt_init); 857