clk-bcm281xx.c (9682B)
1/* 2 * Copyright (C) 2013 Broadcom Corporation 3 * Copyright 2013 Linaro Limited 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation version 2. 8 * 9 * This program is distributed "as is" WITHOUT ANY WARRANTY of any 10 * kind, whether express or implied; without even the implied warranty 11 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 */ 14 15#include "clk-kona.h" 16#include "dt-bindings/clock/bcm281xx.h" 17 18#define BCM281XX_CCU_COMMON(_name, _ucase_name) \ 19 KONA_CCU_COMMON(BCM281XX, _name, _ucase_name) 20 21/* Root CCU */ 22 23static struct peri_clk_data frac_1m_data = { 24 .gate = HW_SW_GATE(0x214, 16, 0, 1), 25 .trig = TRIGGER(0x0e04, 0), 26 .div = FRAC_DIVIDER(0x0e00, 0, 22, 16), 27 .clocks = CLOCKS("ref_crystal"), 28}; 29 30static struct ccu_data root_ccu_data = { 31 BCM281XX_CCU_COMMON(root, ROOT), 32 .kona_clks = { 33 [BCM281XX_ROOT_CCU_FRAC_1M] = 34 KONA_CLK(root, frac_1m, peri), 35 [BCM281XX_ROOT_CCU_CLOCK_COUNT] = LAST_KONA_CLK, 36 }, 37}; 38 39/* AON CCU */ 40 41static struct peri_clk_data hub_timer_data = { 42 .gate = HW_SW_GATE(0x0414, 16, 0, 1), 43 .clocks = CLOCKS("bbl_32k", 44 "frac_1m", 45 "dft_19_5m"), 46 .sel = SELECTOR(0x0a10, 0, 2), 47 .trig = TRIGGER(0x0a40, 4), 48}; 49 50static struct peri_clk_data pmu_bsc_data = { 51 .gate = HW_SW_GATE(0x0418, 16, 0, 1), 52 .clocks = CLOCKS("ref_crystal", 53 "pmu_bsc_var", 54 "bbl_32k"), 55 .sel = SELECTOR(0x0a04, 0, 2), 56 .div = DIVIDER(0x0a04, 3, 4), 57 .trig = TRIGGER(0x0a40, 0), 58}; 59 60static struct peri_clk_data pmu_bsc_var_data = { 61 .clocks = CLOCKS("var_312m", 62 "ref_312m"), 63 .sel = SELECTOR(0x0a00, 0, 2), 64 .div = DIVIDER(0x0a00, 4, 5), 65 .trig = TRIGGER(0x0a40, 2), 66}; 67 68static struct ccu_data aon_ccu_data = { 69 BCM281XX_CCU_COMMON(aon, AON), 70 .kona_clks = { 71 [BCM281XX_AON_CCU_HUB_TIMER] = 72 KONA_CLK(aon, hub_timer, peri), 73 [BCM281XX_AON_CCU_PMU_BSC] = 74 KONA_CLK(aon, pmu_bsc, peri), 75 [BCM281XX_AON_CCU_PMU_BSC_VAR] = 76 KONA_CLK(aon, pmu_bsc_var, peri), 77 [BCM281XX_AON_CCU_CLOCK_COUNT] = LAST_KONA_CLK, 78 }, 79}; 80 81/* Hub CCU */ 82 83static struct peri_clk_data tmon_1m_data = { 84 .gate = HW_SW_GATE(0x04a4, 18, 2, 3), 85 .clocks = CLOCKS("ref_crystal", 86 "frac_1m"), 87 .sel = SELECTOR(0x0e74, 0, 2), 88 .trig = TRIGGER(0x0e84, 1), 89}; 90 91static struct ccu_data hub_ccu_data = { 92 BCM281XX_CCU_COMMON(hub, HUB), 93 .kona_clks = { 94 [BCM281XX_HUB_CCU_TMON_1M] = 95 KONA_CLK(hub, tmon_1m, peri), 96 [BCM281XX_HUB_CCU_CLOCK_COUNT] = LAST_KONA_CLK, 97 }, 98}; 99 100/* Master CCU */ 101 102static struct peri_clk_data sdio1_data = { 103 .gate = HW_SW_GATE(0x0358, 18, 2, 3), 104 .clocks = CLOCKS("ref_crystal", 105 "var_52m", 106 "ref_52m", 107 "var_96m", 108 "ref_96m"), 109 .sel = SELECTOR(0x0a28, 0, 3), 110 .div = DIVIDER(0x0a28, 4, 14), 111 .trig = TRIGGER(0x0afc, 9), 112}; 113 114static struct peri_clk_data sdio2_data = { 115 .gate = HW_SW_GATE(0x035c, 18, 2, 3), 116 .clocks = CLOCKS("ref_crystal", 117 "var_52m", 118 "ref_52m", 119 "var_96m", 120 "ref_96m"), 121 .sel = SELECTOR(0x0a2c, 0, 3), 122 .div = DIVIDER(0x0a2c, 4, 14), 123 .trig = TRIGGER(0x0afc, 10), 124}; 125 126static struct peri_clk_data sdio3_data = { 127 .gate = HW_SW_GATE(0x0364, 18, 2, 3), 128 .clocks = CLOCKS("ref_crystal", 129 "var_52m", 130 "ref_52m", 131 "var_96m", 132 "ref_96m"), 133 .sel = SELECTOR(0x0a34, 0, 3), 134 .div = DIVIDER(0x0a34, 4, 14), 135 .trig = TRIGGER(0x0afc, 12), 136}; 137 138static struct peri_clk_data sdio4_data = { 139 .gate = HW_SW_GATE(0x0360, 18, 2, 3), 140 .clocks = CLOCKS("ref_crystal", 141 "var_52m", 142 "ref_52m", 143 "var_96m", 144 "ref_96m"), 145 .sel = SELECTOR(0x0a30, 0, 3), 146 .div = DIVIDER(0x0a30, 4, 14), 147 .trig = TRIGGER(0x0afc, 11), 148}; 149 150static struct peri_clk_data usb_ic_data = { 151 .gate = HW_SW_GATE(0x0354, 18, 2, 3), 152 .clocks = CLOCKS("ref_crystal", 153 "var_96m", 154 "ref_96m"), 155 .div = FIXED_DIVIDER(2), 156 .sel = SELECTOR(0x0a24, 0, 2), 157 .trig = TRIGGER(0x0afc, 7), 158}; 159 160/* also called usbh_48m */ 161static struct peri_clk_data hsic2_48m_data = { 162 .gate = HW_SW_GATE(0x0370, 18, 2, 3), 163 .clocks = CLOCKS("ref_crystal", 164 "var_96m", 165 "ref_96m"), 166 .sel = SELECTOR(0x0a38, 0, 2), 167 .div = FIXED_DIVIDER(2), 168 .trig = TRIGGER(0x0afc, 5), 169}; 170 171/* also called usbh_12m */ 172static struct peri_clk_data hsic2_12m_data = { 173 .gate = HW_SW_GATE(0x0370, 20, 4, 5), 174 .div = DIVIDER(0x0a38, 12, 2), 175 .clocks = CLOCKS("ref_crystal", 176 "var_96m", 177 "ref_96m"), 178 .pre_div = FIXED_DIVIDER(2), 179 .sel = SELECTOR(0x0a38, 0, 2), 180 .trig = TRIGGER(0x0afc, 5), 181}; 182 183static struct ccu_data master_ccu_data = { 184 BCM281XX_CCU_COMMON(master, MASTER), 185 .kona_clks = { 186 [BCM281XX_MASTER_CCU_SDIO1] = 187 KONA_CLK(master, sdio1, peri), 188 [BCM281XX_MASTER_CCU_SDIO2] = 189 KONA_CLK(master, sdio2, peri), 190 [BCM281XX_MASTER_CCU_SDIO3] = 191 KONA_CLK(master, sdio3, peri), 192 [BCM281XX_MASTER_CCU_SDIO4] = 193 KONA_CLK(master, sdio4, peri), 194 [BCM281XX_MASTER_CCU_USB_IC] = 195 KONA_CLK(master, usb_ic, peri), 196 [BCM281XX_MASTER_CCU_HSIC2_48M] = 197 KONA_CLK(master, hsic2_48m, peri), 198 [BCM281XX_MASTER_CCU_HSIC2_12M] = 199 KONA_CLK(master, hsic2_12m, peri), 200 [BCM281XX_MASTER_CCU_CLOCK_COUNT] = LAST_KONA_CLK, 201 }, 202}; 203 204/* Slave CCU */ 205 206static struct peri_clk_data uartb_data = { 207 .gate = HW_SW_GATE(0x0400, 18, 2, 3), 208 .clocks = CLOCKS("ref_crystal", 209 "var_156m", 210 "ref_156m"), 211 .sel = SELECTOR(0x0a10, 0, 2), 212 .div = FRAC_DIVIDER(0x0a10, 4, 12, 8), 213 .trig = TRIGGER(0x0afc, 2), 214}; 215 216static struct peri_clk_data uartb2_data = { 217 .gate = HW_SW_GATE(0x0404, 18, 2, 3), 218 .clocks = CLOCKS("ref_crystal", 219 "var_156m", 220 "ref_156m"), 221 .sel = SELECTOR(0x0a14, 0, 2), 222 .div = FRAC_DIVIDER(0x0a14, 4, 12, 8), 223 .trig = TRIGGER(0x0afc, 3), 224}; 225 226static struct peri_clk_data uartb3_data = { 227 .gate = HW_SW_GATE(0x0408, 18, 2, 3), 228 .clocks = CLOCKS("ref_crystal", 229 "var_156m", 230 "ref_156m"), 231 .sel = SELECTOR(0x0a18, 0, 2), 232 .div = FRAC_DIVIDER(0x0a18, 4, 12, 8), 233 .trig = TRIGGER(0x0afc, 4), 234}; 235 236static struct peri_clk_data uartb4_data = { 237 .gate = HW_SW_GATE(0x0408, 18, 2, 3), 238 .clocks = CLOCKS("ref_crystal", 239 "var_156m", 240 "ref_156m"), 241 .sel = SELECTOR(0x0a1c, 0, 2), 242 .div = FRAC_DIVIDER(0x0a1c, 4, 12, 8), 243 .trig = TRIGGER(0x0afc, 5), 244}; 245 246static struct peri_clk_data ssp0_data = { 247 .gate = HW_SW_GATE(0x0410, 18, 2, 3), 248 .clocks = CLOCKS("ref_crystal", 249 "var_104m", 250 "ref_104m", 251 "var_96m", 252 "ref_96m"), 253 .sel = SELECTOR(0x0a20, 0, 3), 254 .div = DIVIDER(0x0a20, 4, 14), 255 .trig = TRIGGER(0x0afc, 6), 256}; 257 258static struct peri_clk_data ssp2_data = { 259 .gate = HW_SW_GATE(0x0418, 18, 2, 3), 260 .clocks = CLOCKS("ref_crystal", 261 "var_104m", 262 "ref_104m", 263 "var_96m", 264 "ref_96m"), 265 .sel = SELECTOR(0x0a28, 0, 3), 266 .div = DIVIDER(0x0a28, 4, 14), 267 .trig = TRIGGER(0x0afc, 8), 268}; 269 270static struct peri_clk_data bsc1_data = { 271 .gate = HW_SW_GATE(0x0458, 18, 2, 3), 272 .clocks = CLOCKS("ref_crystal", 273 "var_104m", 274 "ref_104m", 275 "var_13m", 276 "ref_13m"), 277 .sel = SELECTOR(0x0a64, 0, 3), 278 .trig = TRIGGER(0x0afc, 23), 279}; 280 281static struct peri_clk_data bsc2_data = { 282 .gate = HW_SW_GATE(0x045c, 18, 2, 3), 283 .clocks = CLOCKS("ref_crystal", 284 "var_104m", 285 "ref_104m", 286 "var_13m", 287 "ref_13m"), 288 .sel = SELECTOR(0x0a68, 0, 3), 289 .trig = TRIGGER(0x0afc, 24), 290}; 291 292static struct peri_clk_data bsc3_data = { 293 .gate = HW_SW_GATE(0x0484, 18, 2, 3), 294 .clocks = CLOCKS("ref_crystal", 295 "var_104m", 296 "ref_104m", 297 "var_13m", 298 "ref_13m"), 299 .sel = SELECTOR(0x0a84, 0, 3), 300 .trig = TRIGGER(0x0b00, 2), 301}; 302 303static struct peri_clk_data pwm_data = { 304 .gate = HW_SW_GATE(0x0468, 18, 2, 3), 305 .clocks = CLOCKS("ref_crystal", 306 "var_104m"), 307 .sel = SELECTOR(0x0a70, 0, 2), 308 .div = DIVIDER(0x0a70, 4, 3), 309 .trig = TRIGGER(0x0afc, 15), 310}; 311 312static struct ccu_data slave_ccu_data = { 313 BCM281XX_CCU_COMMON(slave, SLAVE), 314 .kona_clks = { 315 [BCM281XX_SLAVE_CCU_UARTB] = 316 KONA_CLK(slave, uartb, peri), 317 [BCM281XX_SLAVE_CCU_UARTB2] = 318 KONA_CLK(slave, uartb2, peri), 319 [BCM281XX_SLAVE_CCU_UARTB3] = 320 KONA_CLK(slave, uartb3, peri), 321 [BCM281XX_SLAVE_CCU_UARTB4] = 322 KONA_CLK(slave, uartb4, peri), 323 [BCM281XX_SLAVE_CCU_SSP0] = 324 KONA_CLK(slave, ssp0, peri), 325 [BCM281XX_SLAVE_CCU_SSP2] = 326 KONA_CLK(slave, ssp2, peri), 327 [BCM281XX_SLAVE_CCU_BSC1] = 328 KONA_CLK(slave, bsc1, peri), 329 [BCM281XX_SLAVE_CCU_BSC2] = 330 KONA_CLK(slave, bsc2, peri), 331 [BCM281XX_SLAVE_CCU_BSC3] = 332 KONA_CLK(slave, bsc3, peri), 333 [BCM281XX_SLAVE_CCU_PWM] = 334 KONA_CLK(slave, pwm, peri), 335 [BCM281XX_SLAVE_CCU_CLOCK_COUNT] = LAST_KONA_CLK, 336 }, 337}; 338 339/* Device tree match table callback functions */ 340 341static void __init kona_dt_root_ccu_setup(struct device_node *node) 342{ 343 kona_dt_ccu_setup(&root_ccu_data, node); 344} 345 346static void __init kona_dt_aon_ccu_setup(struct device_node *node) 347{ 348 kona_dt_ccu_setup(&aon_ccu_data, node); 349} 350 351static void __init kona_dt_hub_ccu_setup(struct device_node *node) 352{ 353 kona_dt_ccu_setup(&hub_ccu_data, node); 354} 355 356static void __init kona_dt_master_ccu_setup(struct device_node *node) 357{ 358 kona_dt_ccu_setup(&master_ccu_data, node); 359} 360 361static void __init kona_dt_slave_ccu_setup(struct device_node *node) 362{ 363 kona_dt_ccu_setup(&slave_ccu_data, node); 364} 365 366CLK_OF_DECLARE(bcm281xx_root_ccu, BCM281XX_DT_ROOT_CCU_COMPAT, 367 kona_dt_root_ccu_setup); 368CLK_OF_DECLARE(bcm281xx_aon_ccu, BCM281XX_DT_AON_CCU_COMPAT, 369 kona_dt_aon_ccu_setup); 370CLK_OF_DECLARE(bcm281xx_hub_ccu, BCM281XX_DT_HUB_CCU_COMPAT, 371 kona_dt_hub_ccu_setup); 372CLK_OF_DECLARE(bcm281xx_master_ccu, BCM281XX_DT_MASTER_CCU_COMPAT, 373 kona_dt_master_ccu_setup); 374CLK_OF_DECLARE(bcm281xx_slave_ccu, BCM281XX_DT_SLAVE_CCU_COMPAT, 375 kona_dt_slave_ccu_setup);