1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * SPEAr3xx machines clock framework source file 4 * 5 * Copyright (C) 2012 ST Microelectronics 6 * Viresh Kumar <vireshk@kernel.org> 7 */ 8 9 #include <linux/clk.h> 10 #include <linux/clkdev.h> 11 #include <linux/clk/spear.h> 12 #include <linux/err.h> 13 #include <linux/io.h> 14 #include <linux/of_platform.h> 15 #include <linux/spinlock_types.h> 16 #include "clk.h" 17 18 static DEFINE_SPINLOCK(_lock); 19 20 #define PLL1_CTR (misc_base + 0x008) 21 #define PLL1_FRQ (misc_base + 0x00C) 22 #define PLL2_CTR (misc_base + 0x014) 23 #define PLL2_FRQ (misc_base + 0x018) 24 #define PLL_CLK_CFG (misc_base + 0x020) 25 /* PLL_CLK_CFG register masks */ 26 #define MCTR_CLK_SHIFT 28 27 #define MCTR_CLK_MASK 3 28 29 #define CORE_CLK_CFG (misc_base + 0x024) 30 /* CORE CLK CFG register masks */ 31 #define GEN_SYNTH2_3_CLK_SHIFT 18 32 #define GEN_SYNTH2_3_CLK_MASK 1 33 34 #define HCLK_RATIO_SHIFT 10 35 #define HCLK_RATIO_MASK 2 36 #define PCLK_RATIO_SHIFT 8 37 #define PCLK_RATIO_MASK 2 38 39 #define PERIP_CLK_CFG (misc_base + 0x028) 40 /* PERIP_CLK_CFG register masks */ 41 #define UART_CLK_SHIFT 4 42 #define UART_CLK_MASK 1 43 #define FIRDA_CLK_SHIFT 5 44 #define FIRDA_CLK_MASK 2 45 #define GPT0_CLK_SHIFT 8 46 #define GPT1_CLK_SHIFT 11 47 #define GPT2_CLK_SHIFT 12 48 #define GPT_CLK_MASK 1 49 50 #define PERIP1_CLK_ENB (misc_base + 0x02C) 51 /* PERIP1_CLK_ENB register masks */ 52 #define UART_CLK_ENB 3 53 #define SSP_CLK_ENB 5 54 #define I2C_CLK_ENB 7 55 #define JPEG_CLK_ENB 8 56 #define FIRDA_CLK_ENB 10 57 #define GPT1_CLK_ENB 11 58 #define GPT2_CLK_ENB 12 59 #define ADC_CLK_ENB 15 60 #define RTC_CLK_ENB 17 61 #define GPIO_CLK_ENB 18 62 #define DMA_CLK_ENB 19 63 #define SMI_CLK_ENB 21 64 #define GMAC_CLK_ENB 23 65 #define USBD_CLK_ENB 24 66 #define USBH_CLK_ENB 25 67 #define C3_CLK_ENB 31 68 69 #define RAS_CLK_ENB (misc_base + 0x034) 70 #define RAS_AHB_CLK_ENB 0 71 #define RAS_PLL1_CLK_ENB 1 72 #define RAS_APB_CLK_ENB 2 73 #define RAS_32K_CLK_ENB 3 74 #define RAS_24M_CLK_ENB 4 75 #define RAS_48M_CLK_ENB 5 76 #define RAS_PLL2_CLK_ENB 7 77 #define RAS_SYNT0_CLK_ENB 8 78 #define RAS_SYNT1_CLK_ENB 9 79 #define RAS_SYNT2_CLK_ENB 10 80 #define RAS_SYNT3_CLK_ENB 11 81 82 #define PRSC0_CLK_CFG (misc_base + 0x044) 83 #define PRSC1_CLK_CFG (misc_base + 0x048) 84 #define PRSC2_CLK_CFG (misc_base + 0x04C) 85 #define AMEM_CLK_CFG (misc_base + 0x050) 86 #define AMEM_CLK_ENB 0 87 88 #define CLCD_CLK_SYNT (misc_base + 0x05C) 89 #define FIRDA_CLK_SYNT (misc_base + 0x060) 90 #define UART_CLK_SYNT (misc_base + 0x064) 91 #define GMAC_CLK_SYNT (misc_base + 0x068) 92 #define GEN0_CLK_SYNT (misc_base + 0x06C) 93 #define GEN1_CLK_SYNT (misc_base + 0x070) 94 #define GEN2_CLK_SYNT (misc_base + 0x074) 95 #define GEN3_CLK_SYNT (misc_base + 0x078) 96 97 /* pll rate configuration table, in ascending order of rates */ 98 static struct pll_rate_tbl pll_rtbl[] = { 99 {.mode = 0, .m = 0x53, .n = 0x0C, .p = 0x1}, /* vco 332 & pll 166 MHz */ 100 {.mode = 0, .m = 0x85, .n = 0x0C, .p = 0x1}, /* vco 532 & pll 266 MHz */ 101 {.mode = 0, .m = 0xA6, .n = 0x0C, .p = 0x1}, /* vco 664 & pll 332 MHz */ 102 }; 103 104 /* aux rate configuration table, in ascending order of rates */ 105 static struct aux_rate_tbl aux_rtbl[] = { 106 /* For PLL1 = 332 MHz */ 107 {.xscale = 1, .yscale = 81, .eq = 0}, /* 2.049 MHz */ 108 {.xscale = 1, .yscale = 59, .eq = 0}, /* 2.822 MHz */ 109 {.xscale = 2, .yscale = 81, .eq = 0}, /* 4.098 MHz */ 110 {.xscale = 3, .yscale = 89, .eq = 0}, /* 5.644 MHz */ 111 {.xscale = 4, .yscale = 81, .eq = 0}, /* 8.197 MHz */ 112 {.xscale = 4, .yscale = 59, .eq = 0}, /* 11.254 MHz */ 113 {.xscale = 2, .yscale = 27, .eq = 0}, /* 12.296 MHz */ 114 {.xscale = 2, .yscale = 8, .eq = 0}, /* 41.5 MHz */ 115 {.xscale = 2, .yscale = 4, .eq = 0}, /* 83 MHz */ 116 {.xscale = 1, .yscale = 2, .eq = 1}, /* 166 MHz */ 117 }; 118 119 /* gpt rate configuration table, in ascending order of rates */ 120 static struct gpt_rate_tbl gpt_rtbl[] = { 121 /* For pll1 = 332 MHz */ 122 {.mscale = 4, .nscale = 0}, /* 41.5 MHz */ 123 {.mscale = 2, .nscale = 0}, /* 55.3 MHz */ 124 {.mscale = 1, .nscale = 0}, /* 83 MHz */ 125 }; 126 127 /* clock parents */ 128 static const char *uart0_parents[] = { "pll3_clk", "uart_syn_gclk", }; 129 static const char *firda_parents[] = { "pll3_clk", "firda_syn_gclk", 130 }; 131 static const char *gpt0_parents[] = { "pll3_clk", "gpt0_syn_clk", }; 132 static const char *gpt1_parents[] = { "pll3_clk", "gpt1_syn_clk", }; 133 static const char *gpt2_parents[] = { "pll3_clk", "gpt2_syn_clk", }; 134 static const char *gen2_3_parents[] = { "pll1_clk", "pll2_clk", }; 135 static const char *ddr_parents[] = { "ahb_clk", "ahbmult2_clk", "none", 136 "pll2_clk", }; 137 138 #ifdef CONFIG_MACH_SPEAR300 139 static void __init spear300_clk_init(void) 140 { 141 struct clk *clk; 142 143 clk = clk_register_fixed_factor(NULL, "clcd_clk", "ras_pll3_clk", 0, 144 1, 1); 145 clk_register_clkdev(clk, NULL, "60000000.clcd"); 146 147 clk = clk_register_fixed_factor(NULL, "fsmc_clk", "ras_ahb_clk", 0, 1, 148 1); 149 clk_register_clkdev(clk, NULL, "94000000.flash"); 150 151 clk = clk_register_fixed_factor(NULL, "sdhci_clk", "ras_ahb_clk", 0, 1, 152 1); 153 clk_register_clkdev(clk, NULL, "70000000.sdhci"); 154 155 clk = clk_register_fixed_factor(NULL, "gpio1_clk", "ras_apb_clk", 0, 1, 156 1); 157 clk_register_clkdev(clk, NULL, "a9000000.gpio"); 158 159 clk = clk_register_fixed_factor(NULL, "kbd_clk", "ras_apb_clk", 0, 1, 160 1); 161 clk_register_clkdev(clk, NULL, "a0000000.kbd"); 162 } 163 #else 164 static inline void spear300_clk_init(void) { } 165 #endif 166 167 /* array of all spear 310 clock lookups */ 168 #ifdef CONFIG_MACH_SPEAR310 169 static void __init spear310_clk_init(void) 170 { 171 struct clk *clk; 172 173 clk = clk_register_fixed_factor(NULL, "emi_clk", "ras_ahb_clk", 0, 1, 174 1); 175 clk_register_clkdev(clk, "emi", NULL); 176 177 clk = clk_register_fixed_factor(NULL, "fsmc_clk", "ras_ahb_clk", 0, 1, 178 1); 179 clk_register_clkdev(clk, NULL, "44000000.flash"); 180 181 clk = clk_register_fixed_factor(NULL, "tdm_clk", "ras_ahb_clk", 0, 1, 182 1); 183 clk_register_clkdev(clk, NULL, "tdm"); 184 185 clk = clk_register_fixed_factor(NULL, "uart1_clk", "ras_apb_clk", 0, 1, 186 1); 187 clk_register_clkdev(clk, NULL, "b2000000.serial"); 188 189 clk = clk_register_fixed_factor(NULL, "uart2_clk", "ras_apb_clk", 0, 1, 190 1); 191 clk_register_clkdev(clk, NULL, "b2080000.serial"); 192 193 clk = clk_register_fixed_factor(NULL, "uart3_clk", "ras_apb_clk", 0, 1, 194 1); 195 clk_register_clkdev(clk, NULL, "b2100000.serial"); 196 197 clk = clk_register_fixed_factor(NULL, "uart4_clk", "ras_apb_clk", 0, 1, 198 1); 199 clk_register_clkdev(clk, NULL, "b2180000.serial"); 200 201 clk = clk_register_fixed_factor(NULL, "uart5_clk", "ras_apb_clk", 0, 1, 202 1); 203 clk_register_clkdev(clk, NULL, "b2200000.serial"); 204 } 205 #else 206 static inline void spear310_clk_init(void) { } 207 #endif 208 209 /* array of all spear 320 clock lookups */ 210 #ifdef CONFIG_MACH_SPEAR320 211 212 #define SPEAR320_CONTROL_REG (soc_config_base + 0x0010) 213 #define SPEAR320_EXT_CTRL_REG (soc_config_base + 0x0018) 214 215 #define SPEAR320_UARTX_PCLK_MASK 0x1 216 #define SPEAR320_UART2_PCLK_SHIFT 8 217 #define SPEAR320_UART3_PCLK_SHIFT 9 218 #define SPEAR320_UART4_PCLK_SHIFT 10 219 #define SPEAR320_UART5_PCLK_SHIFT 11 220 #define SPEAR320_UART6_PCLK_SHIFT 12 221 #define SPEAR320_RS485_PCLK_SHIFT 13 222 #define SMII_PCLK_SHIFT 18 223 #define SMII_PCLK_MASK 2 224 #define SMII_PCLK_VAL_PAD 0x0 225 #define SMII_PCLK_VAL_PLL2 0x1 226 #define SMII_PCLK_VAL_SYNTH0 0x2 227 #define SDHCI_PCLK_SHIFT 15 228 #define SDHCI_PCLK_MASK 1 229 #define SDHCI_PCLK_VAL_48M 0x0 230 #define SDHCI_PCLK_VAL_SYNTH3 0x1 231 #define I2S_REF_PCLK_SHIFT 8 232 #define I2S_REF_PCLK_MASK 1 233 #define I2S_REF_PCLK_SYNTH_VAL 0x1 234 #define I2S_REF_PCLK_PLL2_VAL 0x0 235 #define UART1_PCLK_SHIFT 6 236 #define UART1_PCLK_MASK 1 237 #define SPEAR320_UARTX_PCLK_VAL_SYNTH1 0x0 238 #define SPEAR320_UARTX_PCLK_VAL_APB 0x1 239 240 static const char *i2s_ref_parents[] = { "ras_pll2_clk", "ras_syn2_gclk", }; 241 static const char *sdhci_parents[] = { "ras_pll3_clk", "ras_syn3_gclk", }; 242 static const char *smii0_parents[] = { "smii_125m_pad", "ras_pll2_clk", 243 "ras_syn0_gclk", }; 244 static const char *uartx_parents[] = { "ras_syn1_gclk", "ras_apb_clk", }; 245 246 static void __init spear320_clk_init(void __iomem *soc_config_base, 247 struct clk *ras_apb_clk) 248 { 249 struct clk *clk; 250 251 clk = clk_register_fixed_rate(NULL, "smii_125m_pad_clk", NULL, 252 0, 125000000); 253 clk_register_clkdev(clk, "smii_125m_pad", NULL); 254 255 clk = clk_register_fixed_factor(NULL, "clcd_clk", "ras_pll3_clk", 0, 256 1, 1); 257 clk_register_clkdev(clk, NULL, "90000000.clcd"); 258 259 clk = clk_register_fixed_factor(NULL, "emi_clk", "ras_ahb_clk", 0, 1, 260 1); 261 clk_register_clkdev(clk, "emi", NULL); 262 263 clk = clk_register_fixed_factor(NULL, "fsmc_clk", "ras_ahb_clk", 0, 1, 264 1); 265 clk_register_clkdev(clk, NULL, "4c000000.flash"); 266 267 clk = clk_register_fixed_factor(NULL, "i2c1_clk", "ras_ahb_clk", 0, 1, 268 1); 269 clk_register_clkdev(clk, NULL, "a7000000.i2c"); 270 271 clk = clk_register_fixed_factor(NULL, "pwm_clk", "ras_ahb_clk", 0, 1, 272 1); 273 clk_register_clkdev(clk, NULL, "a8000000.pwm"); 274 275 clk = clk_register_fixed_factor(NULL, "ssp1_clk", "ras_ahb_clk", 0, 1, 276 1); 277 clk_register_clkdev(clk, NULL, "a5000000.spi"); 278 279 clk = clk_register_fixed_factor(NULL, "ssp2_clk", "ras_ahb_clk", 0, 1, 280 1); 281 clk_register_clkdev(clk, NULL, "a6000000.spi"); 282 283 clk = clk_register_fixed_factor(NULL, "can0_clk", "ras_apb_clk", 0, 1, 284 1); 285 clk_register_clkdev(clk, NULL, "c_can_platform.0"); 286 287 clk = clk_register_fixed_factor(NULL, "can1_clk", "ras_apb_clk", 0, 1, 288 1); 289 clk_register_clkdev(clk, NULL, "c_can_platform.1"); 290 291 clk = clk_register_fixed_factor(NULL, "i2s_clk", "ras_apb_clk", 0, 1, 292 1); 293 clk_register_clkdev(clk, NULL, "a9400000.i2s"); 294 295 clk = clk_register_mux(NULL, "i2s_ref_clk", i2s_ref_parents, 296 ARRAY_SIZE(i2s_ref_parents), 297 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 298 SPEAR320_CONTROL_REG, I2S_REF_PCLK_SHIFT, 299 I2S_REF_PCLK_MASK, 0, &_lock); 300 clk_register_clkdev(clk, "i2s_ref_clk", NULL); 301 302 clk = clk_register_fixed_factor(NULL, "i2s_sclk", "i2s_ref_clk", 303 CLK_SET_RATE_PARENT, 1, 304 4); 305 clk_register_clkdev(clk, "i2s_sclk", NULL); 306 307 clk = clk_register_fixed_factor(NULL, "macb1_clk", "ras_apb_clk", 0, 1, 308 1); 309 clk_register_clkdev(clk, "hclk", "aa000000.eth"); 310 311 clk = clk_register_fixed_factor(NULL, "macb2_clk", "ras_apb_clk", 0, 1, 312 1); 313 clk_register_clkdev(clk, "hclk", "ab000000.eth"); 314 315 clk = clk_register_mux(NULL, "rs485_clk", uartx_parents, 316 ARRAY_SIZE(uartx_parents), 317 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 318 SPEAR320_EXT_CTRL_REG, SPEAR320_RS485_PCLK_SHIFT, 319 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 320 clk_register_clkdev(clk, NULL, "a9300000.serial"); 321 322 clk = clk_register_mux(NULL, "sdhci_clk", sdhci_parents, 323 ARRAY_SIZE(sdhci_parents), 324 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 325 SPEAR320_CONTROL_REG, SDHCI_PCLK_SHIFT, SDHCI_PCLK_MASK, 326 0, &_lock); 327 clk_register_clkdev(clk, NULL, "70000000.sdhci"); 328 329 clk = clk_register_mux(NULL, "smii_pclk", smii0_parents, 330 ARRAY_SIZE(smii0_parents), CLK_SET_RATE_NO_REPARENT, 331 SPEAR320_CONTROL_REG, SMII_PCLK_SHIFT, SMII_PCLK_MASK, 332 0, &_lock); 333 clk_register_clkdev(clk, NULL, "smii_pclk"); 334 335 clk = clk_register_fixed_factor(NULL, "smii_clk", "smii_pclk", 0, 1, 1); 336 clk_register_clkdev(clk, NULL, "smii"); 337 338 clk = clk_register_mux(NULL, "uart1_clk", uartx_parents, 339 ARRAY_SIZE(uartx_parents), 340 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 341 SPEAR320_CONTROL_REG, UART1_PCLK_SHIFT, UART1_PCLK_MASK, 342 0, &_lock); 343 clk_register_clkdev(clk, NULL, "a3000000.serial"); 344 /* Enforce ras_apb_clk */ 345 clk_set_parent(clk, ras_apb_clk); 346 347 clk = clk_register_mux(NULL, "uart2_clk", uartx_parents, 348 ARRAY_SIZE(uartx_parents), 349 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 350 SPEAR320_EXT_CTRL_REG, SPEAR320_UART2_PCLK_SHIFT, 351 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 352 clk_register_clkdev(clk, NULL, "a4000000.serial"); 353 /* Enforce ras_apb_clk */ 354 clk_set_parent(clk, ras_apb_clk); 355 356 clk = clk_register_mux(NULL, "uart3_clk", uartx_parents, 357 ARRAY_SIZE(uartx_parents), 358 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 359 SPEAR320_EXT_CTRL_REG, SPEAR320_UART3_PCLK_SHIFT, 360 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 361 clk_register_clkdev(clk, NULL, "a9100000.serial"); 362 363 clk = clk_register_mux(NULL, "uart4_clk", uartx_parents, 364 ARRAY_SIZE(uartx_parents), 365 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 366 SPEAR320_EXT_CTRL_REG, SPEAR320_UART4_PCLK_SHIFT, 367 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 368 clk_register_clkdev(clk, NULL, "a9200000.serial"); 369 370 clk = clk_register_mux(NULL, "uart5_clk", uartx_parents, 371 ARRAY_SIZE(uartx_parents), 372 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 373 SPEAR320_EXT_CTRL_REG, SPEAR320_UART5_PCLK_SHIFT, 374 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 375 clk_register_clkdev(clk, NULL, "60000000.serial"); 376 377 clk = clk_register_mux(NULL, "uart6_clk", uartx_parents, 378 ARRAY_SIZE(uartx_parents), 379 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 380 SPEAR320_EXT_CTRL_REG, SPEAR320_UART6_PCLK_SHIFT, 381 SPEAR320_UARTX_PCLK_MASK, 0, &_lock); 382 clk_register_clkdev(clk, NULL, "60100000.serial"); 383 } 384 #else 385 static inline void spear320_clk_init(void __iomem *sb, struct clk *rc) { } 386 #endif 387 388 void __init spear3xx_clk_init(void __iomem *misc_base, void __iomem *soc_config_base) 389 { 390 struct clk *clk, *clk1, *ras_apb_clk; 391 392 clk = clk_register_fixed_rate(NULL, "osc_32k_clk", NULL, 0, 32000); 393 clk_register_clkdev(clk, "osc_32k_clk", NULL); 394 395 clk = clk_register_fixed_rate(NULL, "osc_24m_clk", NULL, 0, 24000000); 396 clk_register_clkdev(clk, "osc_24m_clk", NULL); 397 398 /* clock derived from 32 KHz osc clk */ 399 clk = clk_register_gate(NULL, "rtc-spear", "osc_32k_clk", 0, 400 PERIP1_CLK_ENB, RTC_CLK_ENB, 0, &_lock); 401 clk_register_clkdev(clk, NULL, "fc900000.rtc"); 402 403 /* clock derived from 24 MHz osc clk */ 404 clk = clk_register_fixed_rate(NULL, "pll3_clk", "osc_24m_clk", 0, 405 48000000); 406 clk_register_clkdev(clk, "pll3_clk", NULL); 407 408 clk = clk_register_fixed_factor(NULL, "wdt_clk", "osc_24m_clk", 0, 1, 409 1); 410 clk_register_clkdev(clk, NULL, "fc880000.wdt"); 411 412 clk = clk_register_vco_pll("vco1_clk", "pll1_clk", NULL, 413 "osc_24m_clk", 0, PLL1_CTR, PLL1_FRQ, pll_rtbl, 414 ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL); 415 clk_register_clkdev(clk, "vco1_clk", NULL); 416 clk_register_clkdev(clk1, "pll1_clk", NULL); 417 418 clk = clk_register_vco_pll("vco2_clk", "pll2_clk", NULL, 419 "osc_24m_clk", 0, PLL2_CTR, PLL2_FRQ, pll_rtbl, 420 ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL); 421 clk_register_clkdev(clk, "vco2_clk", NULL); 422 clk_register_clkdev(clk1, "pll2_clk", NULL); 423 424 /* clock derived from pll1 clk */ 425 clk = clk_register_fixed_factor(NULL, "cpu_clk", "pll1_clk", 426 CLK_SET_RATE_PARENT, 1, 1); 427 clk_register_clkdev(clk, "cpu_clk", NULL); 428 429 clk = clk_register_divider(NULL, "ahb_clk", "pll1_clk", 430 CLK_SET_RATE_PARENT, CORE_CLK_CFG, HCLK_RATIO_SHIFT, 431 HCLK_RATIO_MASK, 0, &_lock); 432 clk_register_clkdev(clk, "ahb_clk", NULL); 433 434 clk = clk_register_aux("uart_syn_clk", "uart_syn_gclk", "pll1_clk", 0, 435 UART_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl), 436 &_lock, &clk1); 437 clk_register_clkdev(clk, "uart_syn_clk", NULL); 438 clk_register_clkdev(clk1, "uart_syn_gclk", NULL); 439 440 clk = clk_register_mux(NULL, "uart0_mclk", uart0_parents, 441 ARRAY_SIZE(uart0_parents), 442 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 443 PERIP_CLK_CFG, UART_CLK_SHIFT, UART_CLK_MASK, 0, 444 &_lock); 445 clk_register_clkdev(clk, "uart0_mclk", NULL); 446 447 clk = clk_register_gate(NULL, "uart0", "uart0_mclk", 448 CLK_SET_RATE_PARENT, PERIP1_CLK_ENB, UART_CLK_ENB, 0, 449 &_lock); 450 clk_register_clkdev(clk, NULL, "d0000000.serial"); 451 452 clk = clk_register_aux("firda_syn_clk", "firda_syn_gclk", "pll1_clk", 0, 453 FIRDA_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl), 454 &_lock, &clk1); 455 clk_register_clkdev(clk, "firda_syn_clk", NULL); 456 clk_register_clkdev(clk1, "firda_syn_gclk", NULL); 457 458 clk = clk_register_mux(NULL, "firda_mclk", firda_parents, 459 ARRAY_SIZE(firda_parents), 460 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 461 PERIP_CLK_CFG, FIRDA_CLK_SHIFT, FIRDA_CLK_MASK, 0, 462 &_lock); 463 clk_register_clkdev(clk, "firda_mclk", NULL); 464 465 clk = clk_register_gate(NULL, "firda_clk", "firda_mclk", 466 CLK_SET_RATE_PARENT, PERIP1_CLK_ENB, FIRDA_CLK_ENB, 0, 467 &_lock); 468 clk_register_clkdev(clk, NULL, "firda"); 469 470 /* gpt clocks */ 471 clk_register_gpt("gpt0_syn_clk", "pll1_clk", 0, PRSC0_CLK_CFG, gpt_rtbl, 472 ARRAY_SIZE(gpt_rtbl), &_lock); 473 clk = clk_register_mux(NULL, "gpt0_clk", gpt0_parents, 474 ARRAY_SIZE(gpt0_parents), 475 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 476 PERIP_CLK_CFG, GPT0_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); 477 clk_register_clkdev(clk, NULL, "gpt0"); 478 479 clk_register_gpt("gpt1_syn_clk", "pll1_clk", 0, PRSC1_CLK_CFG, gpt_rtbl, 480 ARRAY_SIZE(gpt_rtbl), &_lock); 481 clk = clk_register_mux(NULL, "gpt1_mclk", gpt1_parents, 482 ARRAY_SIZE(gpt1_parents), 483 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 484 PERIP_CLK_CFG, GPT1_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); 485 clk_register_clkdev(clk, "gpt1_mclk", NULL); 486 clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mclk", 487 CLK_SET_RATE_PARENT, PERIP1_CLK_ENB, GPT1_CLK_ENB, 0, 488 &_lock); 489 clk_register_clkdev(clk, NULL, "gpt1"); 490 491 clk_register_gpt("gpt2_syn_clk", "pll1_clk", 0, PRSC2_CLK_CFG, gpt_rtbl, 492 ARRAY_SIZE(gpt_rtbl), &_lock); 493 clk = clk_register_mux(NULL, "gpt2_mclk", gpt2_parents, 494 ARRAY_SIZE(gpt2_parents), 495 CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, 496 PERIP_CLK_CFG, GPT2_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); 497 clk_register_clkdev(clk, "gpt2_mclk", NULL); 498 clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mclk", 499 CLK_SET_RATE_PARENT, PERIP1_CLK_ENB, GPT2_CLK_ENB, 0, 500 &_lock); 501 clk_register_clkdev(clk, NULL, "gpt2"); 502 503 /* general synths clocks */ 504 clk = clk_register_aux("gen0_syn_clk", "gen0_syn_gclk", "pll1_clk", 505 0, GEN0_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl), 506 &_lock, &clk1); 507 clk_register_clkdev(clk, "gen0_syn_clk", NULL); 508 clk_register_clkdev(clk1, "gen0_syn_gclk", NULL); 509 510 clk = clk_register_aux("gen1_syn_clk", "gen1_syn_gclk", "pll1_clk", 511 0, GEN1_CLK_SYNT, NULL, aux_rtbl, ARRAY_SIZE(aux_rtbl), 512 &_lock, &clk1); 513 clk_register_clkdev(clk, "gen1_syn_clk", NULL); 514 clk_register_clkdev(clk1, "gen1_syn_gclk", NULL); 515 516 clk = clk_register_mux(NULL, "gen2_3_par_clk", gen2_3_parents, 517 ARRAY_SIZE(gen2_3_parents), CLK_SET_RATE_NO_REPARENT, 518 CORE_CLK_CFG, GEN_SYNTH2_3_CLK_SHIFT, 519 GEN_SYNTH2_3_CLK_MASK, 0, &_lock); 520 clk_register_clkdev(clk, "gen2_3_par_clk", NULL); 521 522 clk = clk_register_aux("gen2_syn_clk", "gen2_syn_gclk", 523 "gen2_3_par_clk", 0, GEN2_CLK_SYNT, NULL, aux_rtbl, 524 ARRAY_SIZE(aux_rtbl), &_lock, &clk1); 525 clk_register_clkdev(clk, "gen2_syn_clk", NULL); 526 clk_register_clkdev(clk1, "gen2_syn_gclk", NULL); 527 528 clk = clk_register_aux("gen3_syn_clk", "gen3_syn_gclk", 529 "gen2_3_par_clk", 0, GEN3_CLK_SYNT, NULL, aux_rtbl, 530 ARRAY_SIZE(aux_rtbl), &_lock, &clk1); 531 clk_register_clkdev(clk, "gen3_syn_clk", NULL); 532 clk_register_clkdev(clk1, "gen3_syn_gclk", NULL); 533 534 /* clock derived from pll3 clk */ 535 clk = clk_register_gate(NULL, "usbh_clk", "pll3_clk", 0, PERIP1_CLK_ENB, 536 USBH_CLK_ENB, 0, &_lock); 537 clk_register_clkdev(clk, NULL, "e1800000.ehci"); 538 clk_register_clkdev(clk, NULL, "e1900000.ohci"); 539 clk_register_clkdev(clk, NULL, "e2100000.ohci"); 540 541 clk = clk_register_fixed_factor(NULL, "usbh.0_clk", "usbh_clk", 0, 1, 542 1); 543 clk_register_clkdev(clk, "usbh.0_clk", NULL); 544 545 clk = clk_register_fixed_factor(NULL, "usbh.1_clk", "usbh_clk", 0, 1, 546 1); 547 clk_register_clkdev(clk, "usbh.1_clk", NULL); 548 549 clk = clk_register_gate(NULL, "usbd_clk", "pll3_clk", 0, PERIP1_CLK_ENB, 550 USBD_CLK_ENB, 0, &_lock); 551 clk_register_clkdev(clk, NULL, "e1100000.usbd"); 552 553 /* clock derived from ahb clk */ 554 clk = clk_register_fixed_factor(NULL, "ahbmult2_clk", "ahb_clk", 0, 2, 555 1); 556 clk_register_clkdev(clk, "ahbmult2_clk", NULL); 557 558 clk = clk_register_mux(NULL, "ddr_clk", ddr_parents, 559 ARRAY_SIZE(ddr_parents), CLK_SET_RATE_NO_REPARENT, 560 PLL_CLK_CFG, MCTR_CLK_SHIFT, MCTR_CLK_MASK, 0, &_lock); 561 clk_register_clkdev(clk, "ddr_clk", NULL); 562 563 clk = clk_register_divider(NULL, "apb_clk", "ahb_clk", 564 CLK_SET_RATE_PARENT, CORE_CLK_CFG, PCLK_RATIO_SHIFT, 565 PCLK_RATIO_MASK, 0, &_lock); 566 clk_register_clkdev(clk, "apb_clk", NULL); 567 568 clk = clk_register_gate(NULL, "amem_clk", "ahb_clk", 0, AMEM_CLK_CFG, 569 AMEM_CLK_ENB, 0, &_lock); 570 clk_register_clkdev(clk, "amem_clk", NULL); 571 572 clk = clk_register_gate(NULL, "c3_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 573 C3_CLK_ENB, 0, &_lock); 574 clk_register_clkdev(clk, NULL, "c3_clk"); 575 576 clk = clk_register_gate(NULL, "dma_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 577 DMA_CLK_ENB, 0, &_lock); 578 clk_register_clkdev(clk, NULL, "fc400000.dma"); 579 580 clk = clk_register_gate(NULL, "gmac_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 581 GMAC_CLK_ENB, 0, &_lock); 582 clk_register_clkdev(clk, NULL, "e0800000.eth"); 583 584 clk = clk_register_gate(NULL, "i2c0_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 585 I2C_CLK_ENB, 0, &_lock); 586 clk_register_clkdev(clk, NULL, "d0180000.i2c"); 587 588 clk = clk_register_gate(NULL, "jpeg_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 589 JPEG_CLK_ENB, 0, &_lock); 590 clk_register_clkdev(clk, NULL, "jpeg"); 591 592 clk = clk_register_gate(NULL, "smi_clk", "ahb_clk", 0, PERIP1_CLK_ENB, 593 SMI_CLK_ENB, 0, &_lock); 594 clk_register_clkdev(clk, NULL, "fc000000.flash"); 595 596 /* clock derived from apb clk */ 597 clk = clk_register_gate(NULL, "adc_clk", "apb_clk", 0, PERIP1_CLK_ENB, 598 ADC_CLK_ENB, 0, &_lock); 599 clk_register_clkdev(clk, NULL, "d0080000.adc"); 600 601 clk = clk_register_gate(NULL, "gpio0_clk", "apb_clk", 0, PERIP1_CLK_ENB, 602 GPIO_CLK_ENB, 0, &_lock); 603 clk_register_clkdev(clk, NULL, "fc980000.gpio"); 604 605 clk = clk_register_gate(NULL, "ssp0_clk", "apb_clk", 0, PERIP1_CLK_ENB, 606 SSP_CLK_ENB, 0, &_lock); 607 clk_register_clkdev(clk, NULL, "d0100000.spi"); 608 609 /* RAS clk enable */ 610 clk = clk_register_gate(NULL, "ras_ahb_clk", "ahb_clk", 0, RAS_CLK_ENB, 611 RAS_AHB_CLK_ENB, 0, &_lock); 612 clk_register_clkdev(clk, "ras_ahb_clk", NULL); 613 614 clk = clk_register_gate(NULL, "ras_apb_clk", "apb_clk", 0, RAS_CLK_ENB, 615 RAS_APB_CLK_ENB, 0, &_lock); 616 clk_register_clkdev(clk, "ras_apb_clk", NULL); 617 ras_apb_clk = clk; 618 619 clk = clk_register_gate(NULL, "ras_32k_clk", "osc_32k_clk", 0, 620 RAS_CLK_ENB, RAS_32K_CLK_ENB, 0, &_lock); 621 clk_register_clkdev(clk, "ras_32k_clk", NULL); 622 623 clk = clk_register_gate(NULL, "ras_24m_clk", "osc_24m_clk", 0, 624 RAS_CLK_ENB, RAS_24M_CLK_ENB, 0, &_lock); 625 clk_register_clkdev(clk, "ras_24m_clk", NULL); 626 627 clk = clk_register_gate(NULL, "ras_pll1_clk", "pll1_clk", 0, 628 RAS_CLK_ENB, RAS_PLL1_CLK_ENB, 0, &_lock); 629 clk_register_clkdev(clk, "ras_pll1_clk", NULL); 630 631 clk = clk_register_gate(NULL, "ras_pll2_clk", "pll2_clk", 0, 632 RAS_CLK_ENB, RAS_PLL2_CLK_ENB, 0, &_lock); 633 clk_register_clkdev(clk, "ras_pll2_clk", NULL); 634 635 clk = clk_register_gate(NULL, "ras_pll3_clk", "pll3_clk", 0, 636 RAS_CLK_ENB, RAS_48M_CLK_ENB, 0, &_lock); 637 clk_register_clkdev(clk, "ras_pll3_clk", NULL); 638 639 clk = clk_register_gate(NULL, "ras_syn0_gclk", "gen0_syn_gclk", 640 CLK_SET_RATE_PARENT, RAS_CLK_ENB, RAS_SYNT0_CLK_ENB, 0, 641 &_lock); 642 clk_register_clkdev(clk, "ras_syn0_gclk", NULL); 643 644 clk = clk_register_gate(NULL, "ras_syn1_gclk", "gen1_syn_gclk", 645 CLK_SET_RATE_PARENT, RAS_CLK_ENB, RAS_SYNT1_CLK_ENB, 0, 646 &_lock); 647 clk_register_clkdev(clk, "ras_syn1_gclk", NULL); 648 649 clk = clk_register_gate(NULL, "ras_syn2_gclk", "gen2_syn_gclk", 650 CLK_SET_RATE_PARENT, RAS_CLK_ENB, RAS_SYNT2_CLK_ENB, 0, 651 &_lock); 652 clk_register_clkdev(clk, "ras_syn2_gclk", NULL); 653 654 clk = clk_register_gate(NULL, "ras_syn3_gclk", "gen3_syn_gclk", 655 CLK_SET_RATE_PARENT, RAS_CLK_ENB, RAS_SYNT3_CLK_ENB, 0, 656 &_lock); 657 clk_register_clkdev(clk, "ras_syn3_gclk", NULL); 658 659 if (of_machine_is_compatible("st,spear300")) 660 spear300_clk_init(); 661 else if (of_machine_is_compatible("st,spear310")) 662 spear310_clk_init(); 663 else if (of_machine_is_compatible("st,spear320")) 664 spear320_clk_init(soc_config_base, ras_apb_clk); 665 } 666