1/* 2 * SPEAr3xx machines clock framework source file 3 * 4 * Copyright (C) 2012 ST Microelectronics 5 * Viresh Kumar <vireshk@kernel.org> 6 * 7 * This file is licensed under the terms of the GNU General Public 8 * License version 2. This program is licensed "as is" without any 9 * warranty of any kind, whether express or implied. 10 */ 11 12#include <linux/clk.h> 13#include <linux/clkdev.h> 14#include <linux/err.h> 15#include <linux/io.h> 16#include <linux/of_platform.h> 17#include <linux/spinlock_types.h> 18#include "clk.h" 19 20static DEFINE_SPINLOCK(_lock); 21 22#define PLL1_CTR (misc_base + 0x008) 23#define PLL1_FRQ (misc_base + 0x00C) 24#define PLL2_CTR (misc_base + 0x014) 25#define PLL2_FRQ (misc_base + 0x018) 26#define PLL_CLK_CFG (misc_base + 0x020) 27 /* PLL_CLK_CFG register masks */ 28 #define MCTR_CLK_SHIFT 28 29 #define MCTR_CLK_MASK 3 30 31#define CORE_CLK_CFG (misc_base + 0x024) 32 /* CORE CLK CFG register masks */ 33 #define GEN_SYNTH2_3_CLK_SHIFT 18 34 #define GEN_SYNTH2_3_CLK_MASK 1 35 36 #define HCLK_RATIO_SHIFT 10 37 #define HCLK_RATIO_MASK 2 38 #define PCLK_RATIO_SHIFT 8 39 #define PCLK_RATIO_MASK 2 40 41#define PERIP_CLK_CFG (misc_base + 0x028) 42 /* PERIP_CLK_CFG register masks */ 43 #define UART_CLK_SHIFT 4 44 #define UART_CLK_MASK 1 45 #define FIRDA_CLK_SHIFT 5 46 #define FIRDA_CLK_MASK 2 47 #define GPT0_CLK_SHIFT 8 48 #define GPT1_CLK_SHIFT 11 49 #define GPT2_CLK_SHIFT 12 50 #define GPT_CLK_MASK 1 51 52#define PERIP1_CLK_ENB (misc_base + 0x02C) 53 /* PERIP1_CLK_ENB register masks */ 54 #define UART_CLK_ENB 3 55 #define SSP_CLK_ENB 5 56 #define I2C_CLK_ENB 7 57 #define JPEG_CLK_ENB 8 58 #define FIRDA_CLK_ENB 10 59 #define GPT1_CLK_ENB 11 60 #define GPT2_CLK_ENB 12 61 #define ADC_CLK_ENB 15 62 #define RTC_CLK_ENB 17 63 #define GPIO_CLK_ENB 18 64 #define DMA_CLK_ENB 19 65 #define SMI_CLK_ENB 21 66 #define GMAC_CLK_ENB 23 67 #define USBD_CLK_ENB 24 68 #define USBH_CLK_ENB 25 69 #define C3_CLK_ENB 31 70 71#define RAS_CLK_ENB (misc_base + 0x034) 72 #define RAS_AHB_CLK_ENB 0 73 #define RAS_PLL1_CLK_ENB 1 74 #define RAS_APB_CLK_ENB 2 75 #define RAS_32K_CLK_ENB 3 76 #define RAS_24M_CLK_ENB 4 77 #define RAS_48M_CLK_ENB 5 78 #define RAS_PLL2_CLK_ENB 7 79 #define RAS_SYNT0_CLK_ENB 8 80 #define RAS_SYNT1_CLK_ENB 9 81 #define RAS_SYNT2_CLK_ENB 10 82 #define RAS_SYNT3_CLK_ENB 11 83 84#define PRSC0_CLK_CFG (misc_base + 0x044) 85#define PRSC1_CLK_CFG (misc_base + 0x048) 86#define PRSC2_CLK_CFG (misc_base + 0x04C) 87#define AMEM_CLK_CFG (misc_base + 0x050) 88 #define AMEM_CLK_ENB 0 89 90#define CLCD_CLK_SYNT (misc_base + 0x05C) 91#define FIRDA_CLK_SYNT (misc_base + 0x060) 92#define UART_CLK_SYNT (misc_base + 0x064) 93#define GMAC_CLK_SYNT (misc_base + 0x068) 94#define GEN0_CLK_SYNT (misc_base + 0x06C) 95#define GEN1_CLK_SYNT (misc_base + 0x070) 96#define GEN2_CLK_SYNT (misc_base + 0x074) 97#define GEN3_CLK_SYNT (misc_base + 0x078) 98 99/* pll rate configuration table, in ascending order of rates */ 100static struct pll_rate_tbl pll_rtbl[] = { 101 {.mode = 0, .m = 0x53, .n = 0x0C, .p = 0x1}, /* vco 332 & pll 166 MHz */ 102 {.mode = 0, .m = 0x85, .n = 0x0C, .p = 0x1}, /* vco 532 & pll 266 MHz */ 103 {.mode = 0, .m = 0xA6, .n = 0x0C, .p = 0x1}, /* vco 664 & pll 332 MHz */ 104}; 105 106/* aux rate configuration table, in ascending order of rates */ 107static struct aux_rate_tbl aux_rtbl[] = { 108 /* For PLL1 = 332 MHz */ 109 {.xscale = 1, .yscale = 81, .eq = 0}, /* 2.049 MHz */ 110 {.xscale = 1, .yscale = 59, .eq = 0}, /* 2.822 MHz */ 111 {.xscale = 2, .yscale = 81, .eq = 0}, /* 4.098 MHz */ 112 {.xscale = 3, .yscale = 89, .eq = 0}, /* 5.644 MHz */ 113 {.xscale = 4, .yscale = 81, .eq = 0}, /* 8.197 MHz */ 114 {.xscale = 4, .yscale = 59, .eq = 0}, /* 11.254 MHz */ 115 {.xscale = 2, .yscale = 27, .eq = 0}, /* 12.296 MHz */ 116 {.xscale = 2, .yscale = 8, .eq = 0}, /* 41.5 MHz */ 117 {.xscale = 2, .yscale = 4, .eq = 0}, /* 83 MHz */ 118 {.xscale = 1, .yscale = 2, .eq = 1}, /* 166 MHz */ 119}; 120 121/* gpt rate configuration table, in ascending order of rates */ 122static struct gpt_rate_tbl gpt_rtbl[] = { 123 /* For pll1 = 332 MHz */ 124 {.mscale = 4, .nscale = 0}, /* 41.5 MHz */ 125 {.mscale = 2, .nscale = 0}, /* 55.3 MHz */ 126 {.mscale = 1, .nscale = 0}, /* 83 MHz */ 127}; 128 129/* clock parents */ 130static const char *uart0_parents[] = { "pll3_clk", "uart_syn_gclk", }; 131static const char *firda_parents[] = { "pll3_clk", "firda_syn_gclk", 132}; 133static const char *gpt0_parents[] = { "pll3_clk", "gpt0_syn_clk", }; 134static const char *gpt1_parents[] = { "pll3_clk", "gpt1_syn_clk", }; 135static const char *gpt2_parents[] = { "pll3_clk", "gpt2_syn_clk", }; 136static const char *gen2_3_parents[] = { "pll1_clk", "pll2_clk", }; 137static const char *ddr_parents[] = { "ahb_clk", "ahbmult2_clk", "none", 138 "pll2_clk", }; 139 140#ifdef CONFIG_MACH_SPEAR300 141static void __init spear300_clk_init(void) 142{ 143 struct clk *clk; 144 145 clk = clk_register_fixed_factor(NULL, "clcd_clk", "ras_pll3_clk", 0, 146 1, 1); 147 clk_register_clkdev(clk, NULL, "60000000.clcd"); 148 149 clk = clk_register_fixed_factor(NULL, "fsmc_clk", "ras_ahb_clk", 0, 1, 150 1); 151 clk_register_clkdev(clk, NULL, "94000000.flash"); 152 153 clk = clk_register_fixed_factor(NULL, "sdhci_clk", "ras_ahb_clk", 0, 1, 154 1); 155 clk_register_clkdev(clk, NULL, "70000000.sdhci"); 156 157 clk = clk_register_fixed_factor(NULL, "gpio1_clk", "ras_apb_clk", 0, 1, 158 1); 159 clk_register_clkdev(clk, NULL, "a9000000.gpio"); 160 161 clk = clk_register_fixed_factor(NULL, "kbd_clk", "ras_apb_clk", 0, 1, 162 1); 163 clk_register_clkdev(clk, NULL, "a0000000.kbd"); 164} 165#else 166static inline void spear300_clk_init(void) { } 167#endif 168 169/* array of all spear 310 clock lookups */ 170#ifdef CONFIG_MACH_SPEAR310 171static void __init spear310_clk_init(void) 172{ 173 struct clk *clk; 174 175 clk = clk_register_fixed_factor(NULL, "emi_clk", "ras_ahb_clk", 0, 1, 176 1); 177 clk_register_clkdev(clk, "emi", NULL); 178 179 clk = clk_register_fixed_factor(NULL, "fsmc_clk", "ras_ahb_clk", 0, 1, 180 1); 181 clk_register_clkdev(clk, NULL, "44000000.flash"); 182 183 clk = clk_register_fixed_factor(NULL, "tdm_clk", "ras_ahb_clk", 0, 1, 184 1); 185 clk_register_clkdev(clk, NULL, "tdm"); 186 187 clk = clk_register_fixed_factor(NULL, "uart1_clk", "ras_apb_clk", 0, 1, 188 1); 189 clk_register_clkdev(clk, NULL, "b2000000.serial"); 190 191 clk = clk_register_fixed_factor(NULL, "uart2_clk", "ras_apb_clk", 0, 1, 192 1); 193 clk_register_clkdev(clk, NULL, "b2080000.serial"); 194 195 clk = clk_register_fixed_factor(NULL, "uart3_clk", "ras_apb_clk", 0, 1, 196 1); 197 clk_register_clkdev(clk, NULL, "b2100000.serial"); 198 199 clk = clk_register_fixed_factor(NULL, "uart4_clk", "ras_apb_clk", 0, 1, 200 1); 201 clk_register_clkdev(clk, NULL, "b2180000.serial"); 202 203 clk = clk_register_fixed_factor(NULL, "uart5_clk", "ras_apb_clk", 0, 1, 204 1); 205 clk_register_clkdev(clk, NULL, "b2200000.serial"); 206} 207#else 208static inline void spear310_clk_init(void) { } 209#endif 210 211/* array of all spear 320 clock lookups */ 212#ifdef CONFIG_MACH_SPEAR320 213 214#define SPEAR320_CONTROL_REG (soc_config_base + 0x0010) 215#define SPEAR320_EXT_CTRL_REG (soc_config_base + 0x0018) 216 217 #define SPEAR320_UARTX_PCLK_MASK 0x1 218 #define SPEAR320_UART2_PCLK_SHIFT 8 219 #define SPEAR320_UART3_PCLK_SHIFT 9 220 #define SPEAR320_UART4_PCLK_SHIFT 10 221 #define SPEAR320_UART5_PCLK_SHIFT 11 222 #define SPEAR320_UART6_PCLK_SHIFT 12 223 #define SPEAR320_RS485_PCLK_SHIFT 13 224 #define SMII_PCLK_SHIFT 18 225 #define SMII_PCLK_MASK 2 226 #define SMII_PCLK_VAL_PAD 0x0 227 #define SMII_PCLK_VAL_PLL2 0x1 228 #define SMII_PCLK_VAL_SYNTH0 0x2 229 #define SDHCI_PCLK_SHIFT 15 230 #define SDHCI_PCLK_MASK 1 231 #define SDHCI_PCLK_VAL_48M 0x0 232 #define SDHCI_PCLK_VAL_SYNTH3 0x1 233 #define I2S_REF_PCLK_SHIFT 8 234 #define I2S_REF_PCLK_MASK 1 235 #define I2S_REF_PCLK_SYNTH_VAL 0x1 236 #define I2S_REF_PCLK_PLL2_VAL 0x0 237 #define UART1_PCLK_SHIFT 6 238 #define UART1_PCLK_MASK 1 239 #define SPEAR320_UARTX_PCLK_VAL_SYNTH1 0x0 240 #define SPEAR320_UARTX_PCLK_VAL_APB 0x1 241 242static const char *i2s_ref_parents[] = { "ras_pll2_clk", "ras_syn2_gclk", }; 243static const char *sdhci_parents[] = { "ras_pll3_clk", "ras_syn3_gclk", }; 244static const char *smii0_parents[] = { "smii_125m_pad", "ras_pll2_clk", 245 "ras_syn0_gclk", }; 246static const char *uartx_parents[] = { "ras_syn1_gclk", "ras_apb_clk", }; 247 248static void __init spear320_clk_init(void __iomem *soc_config_base, 249 struct clk *ras_apb_clk) 250{ 251 struct clk *clk; 252 253 clk = clk_register_fixed_rate(NULL, "smii_125m_pad_clk", NULL, 254 0, 125000000); 255 clk_register_clkdev(clk, "smii_125m_pad", NULL); 256 257 clk = clk_register_fixed_factor(NULL, "clcd_clk", "ras_pll3_clk", 0, 258 1, 1); 259 clk_register_clkdev(clk, NULL, "90000000.clcd"); 260 261 clk = clk_register_fixed_factor(NULL, "emi_clk", "ras_ahb_clk", 0, 1, 262 1); 263 clk_register_clkdev(clk, "emi", NULL); 264 265 clk = clk_register_fixed_factor(NULL, "fsmc_clk", "ras_ahb_clk", 0, 1, 266 1); 267 clk_register_clkdev(clk, NULL, "4c000000.flash"); 268 269 clk = clk_register_fixed_factor(NULL, "i2c1_clk", "ras_ahb_clk", 0, 1, 270 1); 271 clk_register_clkdev(clk, NULL, "a7000000.i2c"); 272 273 clk = clk_register_fixed_factor(NULL, "pwm_clk", "ras_ahb_clk", 0, 1, 274 1); 275 clk_register_clkdev(clk, NULL, "a8000000.pwm"); 276 277 clk = clk_register_fixed_factor(NULL, "ssp1_clk", "ras_ahb_clk", 0, 1, 278 1); 279 clk_register_clkdev(clk, NULL, "a5000000.spi"); 280 281 clk = clk_register_fixed_factor(NULL, "ssp2_clk", "ras_ahb_clk", 0, 1, 282 1); 283 clk_register_clkdev(clk, NULL, "a6000000.spi"); 284 285 clk = clk_register_fixed_factor(NULL, "can0_clk", "ras_apb_clk", 0, 1, 286 1); 287 clk_register_clkdev(clk, NULL, "c_can_platform.0"); 288 289 clk = clk_register_fixed_factor(NULL, "can1_clk", "ras_apb_clk", 0, 1, 290 1); 291 clk_register_clkdev(clk, NULL, "c_can_platform.1"); 292 293 clk = clk_register_fixed_factor(NULL, "i2s_clk", "ras_apb_clk", 0, 1, 294 1); 295 clk_register_clkdev(clk, NULL, "a9400000.i2s"); 296 297 clk = clk_register_mux(NULL, "i2s_ref_clk", i2s_ref_parents, 298 ARRAY_SIZE(i2s_ref_parents), 299 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 300 SPEAR320_CONTROL_REG, I2S_REF_PCLK_SHIFT, 301 I2S_REF_PCLK_MASK, 0, &_lock); 302 clk_register_clkdev(clk, "i2s_ref_clk", NULL); 303 304 clk = clk_register_fixed_factor(NULL, "i2s_sclk", "i2s_ref_clk", 305 CLK_SET_RATE_PARENT, 1, 306 4); 307 clk_register_clkdev(clk, "i2s_sclk", NULL); 308 309 clk = clk_register_fixed_factor(NULL, "macb1_clk", "ras_apb_clk", 0, 1, 310 1); 311 clk_register_clkdev(clk, "hclk", "aa000000.eth"); 312 313 clk = clk_register_fixed_factor(NULL, "macb2_clk", "ras_apb_clk", 0, 1, 314 1); 315 clk_register_clkdev(clk, "hclk", "ab000000.eth"); 316 317 clk = clk_register_mux(NULL, "rs485_clk", uartx_parents, 318 ARRAY_SIZE(uartx_parents), 319 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 320 SPEAR320_EXT_CTRL_REG, SPEAR320_RS485_PCLK_SHIFT, 321 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 322 clk_register_clkdev(clk, NULL, "a9300000.serial"); 323 324 clk = clk_register_mux(NULL, "sdhci_clk", sdhci_parents, 325 ARRAY_SIZE(sdhci_parents), 326 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 327 SPEAR320_CONTROL_REG, SDHCI_PCLK_SHIFT, SDHCI_PCLK_MASK, 328 0, &_lock); 329 clk_register_clkdev(clk, NULL, "70000000.sdhci"); 330 331 clk = clk_register_mux(NULL, "smii_pclk", smii0_parents, 332 ARRAY_SIZE(smii0_parents), CLK_SET_RATE_NO_REPARENT, 333 SPEAR320_CONTROL_REG, SMII_PCLK_SHIFT, SMII_PCLK_MASK, 334 0, &_lock); 335 clk_register_clkdev(clk, NULL, "smii_pclk"); 336 337 clk = clk_register_fixed_factor(NULL, "smii_clk", "smii_pclk", 0, 1, 1); 338 clk_register_clkdev(clk, NULL, "smii"); 339 340 clk = clk_register_mux(NULL, "uart1_clk", uartx_parents, 341 ARRAY_SIZE(uartx_parents), 342 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 343 SPEAR320_CONTROL_REG, UART1_PCLK_SHIFT, UART1_PCLK_MASK, 344 0, &_lock); 345 clk_register_clkdev(clk, NULL, "a3000000.serial"); 346 /* Enforce ras_apb_clk */ 347 clk_set_parent(clk, ras_apb_clk); 348 349 clk = clk_register_mux(NULL, "uart2_clk", uartx_parents, 350 ARRAY_SIZE(uartx_parents), 351 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 352 SPEAR320_EXT_CTRL_REG, SPEAR320_UART2_PCLK_SHIFT, 353 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 354 clk_register_clkdev(clk, NULL, "a4000000.serial"); 355 /* Enforce ras_apb_clk */ 356 clk_set_parent(clk, ras_apb_clk); 357 358 clk = clk_register_mux(NULL, "uart3_clk", uartx_parents, 359 ARRAY_SIZE(uartx_parents), 360 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 361 SPEAR320_EXT_CTRL_REG, SPEAR320_UART3_PCLK_SHIFT, 362 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 363 clk_register_clkdev(clk, NULL, "a9100000.serial"); 364 365 clk = clk_register_mux(NULL, "uart4_clk", uartx_parents, 366 ARRAY_SIZE(uartx_parents), 367 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 368 SPEAR320_EXT_CTRL_REG, SPEAR320_UART4_PCLK_SHIFT, 369 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 370 clk_register_clkdev(clk, NULL, "a9200000.serial"); 371 372 clk = clk_register_mux(NULL, "uart5_clk", uartx_parents, 373 ARRAY_SIZE(uartx_parents), 374 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 375 SPEAR320_EXT_CTRL_REG, SPEAR320_UART5_PCLK_SHIFT, 376 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 377 clk_register_clkdev(clk, NULL, "60000000.serial"); 378 379 clk = clk_register_mux(NULL, "uart6_clk", uartx_parents, 380 ARRAY_SIZE(uartx_parents), 381 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 382 SPEAR320_EXT_CTRL_REG, SPEAR320_UART6_PCLK_SHIFT, 383 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 384 clk_register_clkdev(clk, NULL, "60100000.serial"); 385} 386#else 387static inline void spear320_clk_init(void __iomem *sb, struct clk *rc) { } 388#endif 389 390void __init spear3xx_clk_init(void __iomem *misc_base, void __iomem *soc_config_base) 391{ 392 struct clk *clk, *clk1, *ras_apb_clk; 393 394 clk = clk_register_fixed_rate(NULL, "osc_32k_clk", NULL, 0, 32000); 395 clk_register_clkdev(clk, "osc_32k_clk", NULL); 396 397 clk = clk_register_fixed_rate(NULL, "osc_24m_clk", NULL, 0, 24000000); 398 clk_register_clkdev(clk, "osc_24m_clk", NULL); 399 400 /* clock derived from 32 KHz osc clk */ 401 clk = clk_register_gate(NULL, "rtc-spear", "osc_32k_clk", 0, 402 PERIP1_CLK_ENB, RTC_CLK_ENB, 0, &_lock); 403 clk_register_clkdev(clk, NULL, "fc900000.rtc"); 404 405 /* clock derived from 24 MHz osc clk */ 406 clk = clk_register_fixed_rate(NULL, "pll3_clk", "osc_24m_clk", 0, 407 48000000); 408 clk_register_clkdev(clk, "pll3_clk", NULL); 409 410 clk = clk_register_fixed_factor(NULL, "wdt_clk", "osc_24m_clk", 0, 1, 411 1); 412 clk_register_clkdev(clk, NULL, "fc880000.wdt"); 413 414 clk = clk_register_vco_pll("vco1_clk", "pll1_clk", NULL, 415 "osc_24m_clk", 0, PLL1_CTR, PLL1_FRQ, pll_rtbl, 416 ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL); 417 clk_register_clkdev(clk, "vco1_clk", NULL); 418 clk_register_clkdev(clk1, "pll1_clk", NULL); 419 420 clk = clk_register_vco_pll("vco2_clk", "pll2_clk", NULL, 421 "osc_24m_clk", 0, PLL2_CTR, PLL2_FRQ, pll_rtbl, 422 ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL); 423 clk_register_clkdev(clk, "vco2_clk", NULL); 424 clk_register_clkdev(clk1, "pll2_clk", NULL); 425 426 /* clock derived from pll1 clk */ 427 clk = clk_register_fixed_factor(NULL, "cpu_clk", "pll1_clk", 428 CLK_SET_RATE_PARENT, 1, 1); 429 clk_register_clkdev(clk, "cpu_clk", NULL); 430 431 clk = clk_register_divider(NULL, "ahb_clk", "pll1_clk", 432 CLK_SET_RATE_PARENT, CORE_CLK_CFG, HCLK_RATIO_SHIFT, 433 HCLK_RATIO_MASK, 0, &_lock); 434 clk_register_clkdev(clk, "ahb_clk", NULL); 435 436 clk = clk_register_aux("uart_syn_clk", "uart_syn_gclk", "pll1_clk", 0, 437 UART_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl), 438 &_lock, &clk1); 439 clk_register_clkdev(clk, "uart_syn_clk", NULL); 440 clk_register_clkdev(clk1, "uart_syn_gclk", NULL); 441 442 clk = clk_register_mux(NULL, "uart0_mclk", uart0_parents, 443 ARRAY_SIZE(uart0_parents), 444 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 445 PERIP_CLK_CFG, UART_CLK_SHIFT, UART_CLK_MASK, 0, 446 &_lock); 447 clk_register_clkdev(clk, "uart0_mclk", NULL); 448 449 clk = clk_register_gate(NULL, "uart0", "uart0_mclk", 450 CLK_SET_RATE_PARENT, PERIP1_CLK_ENB, UART_CLK_ENB, 0, 451 &_lock); 452 clk_register_clkdev(clk, NULL, "d0000000.serial"); 453 454 clk = clk_register_aux("firda_syn_clk", "firda_syn_gclk", "pll1_clk", 0, 455 FIRDA_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl), 456 &_lock, &clk1); 457 clk_register_clkdev(clk, "firda_syn_clk", NULL); 458 clk_register_clkdev(clk1, "firda_syn_gclk", NULL); 459 460 clk = clk_register_mux(NULL, "firda_mclk", firda_parents, 461 ARRAY_SIZE(firda_parents), 462 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 463 PERIP_CLK_CFG, FIRDA_CLK_SHIFT, FIRDA_CLK_MASK, 0, 464 &_lock); 465 clk_register_clkdev(clk, "firda_mclk", NULL); 466 467 clk = clk_register_gate(NULL, "firda_clk", "firda_mclk", 468 CLK_SET_RATE_PARENT, PERIP1_CLK_ENB, FIRDA_CLK_ENB, 0, 469 &_lock); 470 clk_register_clkdev(clk, NULL, "firda"); 471 472 /* gpt clocks */ 473 clk_register_gpt("gpt0_syn_clk", "pll1_clk", 0, PRSC0_CLK_CFG, gpt_rtbl, 474 ARRAY_SIZE(gpt_rtbl), &_lock); 475 clk = clk_register_mux(NULL, "gpt0_clk", gpt0_parents, 476 ARRAY_SIZE(gpt0_parents), 477 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 478 PERIP_CLK_CFG, GPT0_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); 479 clk_register_clkdev(clk, NULL, "gpt0"); 480 481 clk_register_gpt("gpt1_syn_clk", "pll1_clk", 0, PRSC1_CLK_CFG, gpt_rtbl, 482 ARRAY_SIZE(gpt_rtbl), &_lock); 483 clk = clk_register_mux(NULL, "gpt1_mclk", gpt1_parents, 484 ARRAY_SIZE(gpt1_parents), 485 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 486 PERIP_CLK_CFG, GPT1_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); 487 clk_register_clkdev(clk, "gpt1_mclk", NULL); 488 clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mclk", 489 CLK_SET_RATE_PARENT, PERIP1_CLK_ENB, GPT1_CLK_ENB, 0, 490 &_lock); 491 clk_register_clkdev(clk, NULL, "gpt1"); 492 493 clk_register_gpt("gpt2_syn_clk", "pll1_clk", 0, PRSC2_CLK_CFG, gpt_rtbl, 494 ARRAY_SIZE(gpt_rtbl), &_lock); 495 clk = clk_register_mux(NULL, "gpt2_mclk", gpt2_parents, 496 ARRAY_SIZE(gpt2_parents), 497 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 498 PERIP_CLK_CFG, GPT2_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); 499 clk_register_clkdev(clk, "gpt2_mclk", NULL); 500 clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mclk", 501 CLK_SET_RATE_PARENT, PERIP1_CLK_ENB, GPT2_CLK_ENB, 0, 502 &_lock); 503 clk_register_clkdev(clk, NULL, "gpt2"); 504 505 /* general synths clocks */ 506 clk = clk_register_aux("gen0_syn_clk", "gen0_syn_gclk", "pll1_clk", 507 0, GEN0_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl), 508 &_lock, &clk1); 509 clk_register_clkdev(clk, "gen0_syn_clk", NULL); 510 clk_register_clkdev(clk1, "gen0_syn_gclk", NULL); 511 512 clk = clk_register_aux("gen1_syn_clk", "gen1_syn_gclk", "pll1_clk", 513 0, GEN1_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl), 514 &_lock, &clk1); 515 clk_register_clkdev(clk, "gen1_syn_clk", NULL); 516 clk_register_clkdev(clk1, "gen1_syn_gclk", NULL); 517 518 clk = clk_register_mux(NULL, "gen2_3_par_clk", gen2_3_parents, 519 ARRAY_SIZE(gen2_3_parents), CLK_SET_RATE_NO_REPARENT, 520 CORE_CLK_CFG, GEN_SYNTH2_3_CLK_SHIFT, 521 GEN_SYNTH2_3_CLK_MASK, 0, &_lock); 522 clk_register_clkdev(clk, "gen2_3_par_clk", NULL); 523 524 clk = clk_register_aux("gen2_syn_clk", "gen2_syn_gclk", 525 "gen2_3_par_clk", 0, GEN2_CLK_SYNT, NULL, aux_rtbl, 526 ARRAY_SIZE(aux_rtbl), &_lock, &clk1); 527 clk_register_clkdev(clk, "gen2_syn_clk", NULL); 528 clk_register_clkdev(clk1, "gen2_syn_gclk", NULL); 529 530 clk = clk_register_aux("gen3_syn_clk", "gen3_syn_gclk", 531 "gen2_3_par_clk", 0, GEN3_CLK_SYNT, NULL, aux_rtbl, 532 ARRAY_SIZE(aux_rtbl), &_lock, &clk1); 533 clk_register_clkdev(clk, "gen3_syn_clk", NULL); 534 clk_register_clkdev(clk1, "gen3_syn_gclk", NULL); 535 536 /* clock derived from pll3 clk */ 537 clk = clk_register_gate(NULL, "usbh_clk", "pll3_clk", 0, PERIP1_CLK_ENB, 538 USBH_CLK_ENB, 0, &_lock); 539 clk_register_clkdev(clk, NULL, "e1800000.ehci"); 540 clk_register_clkdev(clk, NULL, "e1900000.ohci"); 541 clk_register_clkdev(clk, NULL, "e2100000.ohci"); 542 543 clk = clk_register_fixed_factor(NULL, "usbh.0_clk", "usbh_clk", 0, 1, 544 1); 545 clk_register_clkdev(clk, "usbh.0_clk", NULL); 546 547 clk = clk_register_fixed_factor(NULL, "usbh.1_clk", "usbh_clk", 0, 1, 548 1); 549 clk_register_clkdev(clk, "usbh.1_clk", NULL); 550 551 clk = clk_register_gate(NULL, "usbd_clk", "pll3_clk", 0, PERIP1_CLK_ENB, 552 USBD_CLK_ENB, 0, &_lock); 553 clk_register_clkdev(clk, NULL, "e1100000.usbd"); 554 555 /* clock derived from ahb clk */ 556 clk = clk_register_fixed_factor(NULL, "ahbmult2_clk", "ahb_clk", 0, 2, 557 1); 558 clk_register_clkdev(clk, "ahbmult2_clk", NULL); 559 560 clk = clk_register_mux(NULL, "ddr_clk", ddr_parents, 561 ARRAY_SIZE(ddr_parents), CLK_SET_RATE_NO_REPARENT, 562 PLL_CLK_CFG, MCTR_CLK_SHIFT, MCTR_CLK_MASK, 0, &_lock); 563 clk_register_clkdev(clk, "ddr_clk", NULL); 564 565 clk = clk_register_divider(NULL, "apb_clk", "ahb_clk", 566 CLK_SET_RATE_PARENT, CORE_CLK_CFG, PCLK_RATIO_SHIFT, 567 PCLK_RATIO_MASK, 0, &_lock); 568 clk_register_clkdev(clk, "apb_clk", NULL); 569 570 clk = clk_register_gate(NULL, "amem_clk", "ahb_clk", 0, AMEM_CLK_CFG, 571 AMEM_CLK_ENB, 0, &_lock); 572 clk_register_clkdev(clk, "amem_clk", NULL); 573 574 clk = clk_register_gate(NULL, "c3_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 575 C3_CLK_ENB, 0, &_lock); 576 clk_register_clkdev(clk, NULL, "c3_clk"); 577 578 clk = clk_register_gate(NULL, "dma_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 579 DMA_CLK_ENB, 0, &_lock); 580 clk_register_clkdev(clk, NULL, "fc400000.dma"); 581 582 clk = clk_register_gate(NULL, "gmac_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 583 GMAC_CLK_ENB, 0, &_lock); 584 clk_register_clkdev(clk, NULL, "e0800000.eth"); 585 586 clk = clk_register_gate(NULL, "i2c0_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 587 I2C_CLK_ENB, 0, &_lock); 588 clk_register_clkdev(clk, NULL, "d0180000.i2c"); 589 590 clk = clk_register_gate(NULL, "jpeg_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 591 JPEG_CLK_ENB, 0, &_lock); 592 clk_register_clkdev(clk, NULL, "jpeg"); 593 594 clk = clk_register_gate(NULL, "smi_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 595 SMI_CLK_ENB, 0, &_lock); 596 clk_register_clkdev(clk, NULL, "fc000000.flash"); 597 598 /* clock derived from apb clk */ 599 clk = clk_register_gate(NULL, "adc_clk", "apb_clk", 0, PERIP1_CLK_ENB, 600 ADC_CLK_ENB, 0, &_lock); 601 clk_register_clkdev(clk, NULL, "d0080000.adc"); 602 603 clk = clk_register_gate(NULL, "gpio0_clk", "apb_clk", 0, PERIP1_CLK_ENB, 604 GPIO_CLK_ENB, 0, &_lock); 605 clk_register_clkdev(clk, NULL, "fc980000.gpio"); 606 607 clk = clk_register_gate(NULL, "ssp0_clk", "apb_clk", 0, PERIP1_CLK_ENB, 608 SSP_CLK_ENB, 0, &_lock); 609 clk_register_clkdev(clk, NULL, "d0100000.spi"); 610 611 /* RAS clk enable */ 612 clk = clk_register_gate(NULL, "ras_ahb_clk", "ahb_clk", 0, RAS_CLK_ENB, 613 RAS_AHB_CLK_ENB, 0, &_lock); 614 clk_register_clkdev(clk, "ras_ahb_clk", NULL); 615 616 clk = clk_register_gate(NULL, "ras_apb_clk", "apb_clk", 0, RAS_CLK_ENB, 617 RAS_APB_CLK_ENB, 0, &_lock); 618 clk_register_clkdev(clk, "ras_apb_clk", NULL); 619 ras_apb_clk = clk; 620 621 clk = clk_register_gate(NULL, "ras_32k_clk", "osc_32k_clk", 0, 622 RAS_CLK_ENB, RAS_32K_CLK_ENB, 0, &_lock); 623 clk_register_clkdev(clk, "ras_32k_clk", NULL); 624 625 clk = clk_register_gate(NULL, "ras_24m_clk", "osc_24m_clk", 0, 626 RAS_CLK_ENB, RAS_24M_CLK_ENB, 0, &_lock); 627 clk_register_clkdev(clk, "ras_24m_clk", NULL); 628 629 clk = clk_register_gate(NULL, "ras_pll1_clk", "pll1_clk", 0, 630 RAS_CLK_ENB, RAS_PLL1_CLK_ENB, 0, &_lock); 631 clk_register_clkdev(clk, "ras_pll1_clk", NULL); 632 633 clk = clk_register_gate(NULL, "ras_pll2_clk", "pll2_clk", 0, 634 RAS_CLK_ENB, RAS_PLL2_CLK_ENB, 0, &_lock); 635 clk_register_clkdev(clk, "ras_pll2_clk", NULL); 636 637 clk = clk_register_gate(NULL, "ras_pll3_clk", "pll3_clk", 0, 638 RAS_CLK_ENB, RAS_48M_CLK_ENB, 0, &_lock); 639 clk_register_clkdev(clk, "ras_pll3_clk", NULL); 640 641 clk = clk_register_gate(NULL, "ras_syn0_gclk", "gen0_syn_gclk", 642 CLK_SET_RATE_PARENT, RAS_CLK_ENB, RAS_SYNT0_CLK_ENB, 0, 643 &_lock); 644 clk_register_clkdev(clk, "ras_syn0_gclk", NULL); 645 646 clk = clk_register_gate(NULL, "ras_syn1_gclk", "gen1_syn_gclk", 647 CLK_SET_RATE_PARENT, RAS_CLK_ENB, RAS_SYNT1_CLK_ENB, 0, 648 &_lock); 649 clk_register_clkdev(clk, "ras_syn1_gclk", NULL); 650 651 clk = clk_register_gate(NULL, "ras_syn2_gclk", "gen2_syn_gclk", 652 CLK_SET_RATE_PARENT, RAS_CLK_ENB, RAS_SYNT2_CLK_ENB, 0, 653 &_lock); 654 clk_register_clkdev(clk, "ras_syn2_gclk", NULL); 655 656 clk = clk_register_gate(NULL, "ras_syn3_gclk", "gen3_syn_gclk", 657 CLK_SET_RATE_PARENT, RAS_CLK_ENB, RAS_SYNT3_CLK_ENB, 0, 658 &_lock); 659 clk_register_clkdev(clk, "ras_syn3_gclk", NULL); 660 661 if (of_machine_is_compatible("st,spear300")) 662 spear300_clk_init(); 663 else if (of_machine_is_compatible("st,spear310")) 664 spear310_clk_init(); 665 else if (of_machine_is_compatible("st,spear320")) 666 spear320_clk_init(soc_config_base, ras_apb_clk); 667} 668