1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2014 Marvell Technology Group Ltd. 4 * 5 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> 6 * Alexandre Belloni <alexandre.belloni@free-electrons.com> 7 */ 8 9 #include <linux/clk.h> 10 #include <linux/clk-provider.h> 11 #include <linux/io.h> 12 #include <linux/kernel.h> 13 #include <linux/of.h> 14 #include <linux/of_address.h> 15 #include <linux/slab.h> 16 17 #include <dt-bindings/clock/berlin2.h> 18 19 #include "berlin2-avpll.h" 20 #include "berlin2-div.h" 21 #include "berlin2-pll.h" 22 #include "common.h" 23 24 #define REG_PINMUX0 0x0000 25 #define REG_PINMUX1 0x0004 26 #define REG_SYSPLLCTL0 0x0014 27 #define REG_SYSPLLCTL4 0x0024 28 #define REG_MEMPLLCTL0 0x0028 29 #define REG_MEMPLLCTL4 0x0038 30 #define REG_CPUPLLCTL0 0x003c 31 #define REG_CPUPLLCTL4 0x004c 32 #define REG_AVPLLCTL0 0x0050 33 #define REG_AVPLLCTL31 0x00cc 34 #define REG_AVPLLCTL62 0x0148 35 #define REG_PLLSTATUS 0x014c 36 #define REG_CLKENABLE 0x0150 37 #define REG_CLKSELECT0 0x0154 38 #define REG_CLKSELECT1 0x0158 39 #define REG_CLKSELECT2 0x015c 40 #define REG_CLKSELECT3 0x0160 41 #define REG_CLKSWITCH0 0x0164 42 #define REG_CLKSWITCH1 0x0168 43 #define REG_RESET_TRIGGER 0x0178 44 #define REG_RESET_STATUS0 0x017c 45 #define REG_RESET_STATUS1 0x0180 46 #define REG_SW_GENERIC0 0x0184 47 #define REG_SW_GENERIC3 0x0190 48 #define REG_PRODUCTID 0x01cc 49 #define REG_PRODUCTID_EXT 0x01d0 50 #define REG_GFX3DCORE_CLKCTL 0x022c 51 #define REG_GFX3DSYS_CLKCTL 0x0230 52 #define REG_ARC_CLKCTL 0x0234 53 #define REG_VIP_CLKCTL 0x0238 54 #define REG_SDIO0XIN_CLKCTL 0x023c 55 #define REG_SDIO1XIN_CLKCTL 0x0240 56 #define REG_GFX3DEXTRA_CLKCTL 0x0244 57 #define REG_GFX3D_RESET 0x0248 58 #define REG_GC360_CLKCTL 0x024c 59 #define REG_SDIO_DLLMST_CLKCTL 0x0250 60 61 /* 62 * BG2/BG2CD SoCs have the following audio/video I/O units: 63 * 64 * audiohd: HDMI TX audio 65 * audio0: 7.1ch TX 66 * audio1: 2ch TX 67 * audio2: 2ch RX 68 * audio3: SPDIF TX 69 * video0: HDMI video 70 * video1: Secondary video 71 * video2: SD auxiliary video 72 * 73 * There are no external audio clocks (ACLKI0, ACLKI1) and 74 * only one external video clock (VCLKI0). 75 * 76 * Currently missing bits and pieces: 77 * - audio_fast_pll is unknown 78 * - audiohd_pll is unknown 79 * - video0_pll is unknown 80 * - audio[023], audiohd parent pll is assumed to be audio_fast_pll 81 * 82 */ 83 84 #define MAX_CLKS 41 85 static struct clk_hw_onecell_data *clk_data; 86 static DEFINE_SPINLOCK(lock); 87 static void __iomem *gbase; 88 89 enum { 90 REFCLK, VIDEO_EXT0, 91 SYSPLL, MEMPLL, CPUPLL, 92 AVPLL_A1, AVPLL_A2, AVPLL_A3, AVPLL_A4, 93 AVPLL_A5, AVPLL_A6, AVPLL_A7, AVPLL_A8, 94 AVPLL_B1, AVPLL_B2, AVPLL_B3, AVPLL_B4, 95 AVPLL_B5, AVPLL_B6, AVPLL_B7, AVPLL_B8, 96 AUDIO1_PLL, AUDIO_FAST_PLL, 97 VIDEO0_PLL, VIDEO0_IN, 98 VIDEO1_PLL, VIDEO1_IN, 99 VIDEO2_PLL, VIDEO2_IN, 100 }; 101 102 static const char *clk_names[] = { 103 [REFCLK] = "refclk", 104 [VIDEO_EXT0] = "video_ext0", 105 [SYSPLL] = "syspll", 106 [MEMPLL] = "mempll", 107 [CPUPLL] = "cpupll", 108 [AVPLL_A1] = "avpll_a1", 109 [AVPLL_A2] = "avpll_a2", 110 [AVPLL_A3] = "avpll_a3", 111 [AVPLL_A4] = "avpll_a4", 112 [AVPLL_A5] = "avpll_a5", 113 [AVPLL_A6] = "avpll_a6", 114 [AVPLL_A7] = "avpll_a7", 115 [AVPLL_A8] = "avpll_a8", 116 [AVPLL_B1] = "avpll_b1", 117 [AVPLL_B2] = "avpll_b2", 118 [AVPLL_B3] = "avpll_b3", 119 [AVPLL_B4] = "avpll_b4", 120 [AVPLL_B5] = "avpll_b5", 121 [AVPLL_B6] = "avpll_b6", 122 [AVPLL_B7] = "avpll_b7", 123 [AVPLL_B8] = "avpll_b8", 124 [AUDIO1_PLL] = "audio1_pll", 125 [AUDIO_FAST_PLL] = "audio_fast_pll", 126 [VIDEO0_PLL] = "video0_pll", 127 [VIDEO0_IN] = "video0_in", 128 [VIDEO1_PLL] = "video1_pll", 129 [VIDEO1_IN] = "video1_in", 130 [VIDEO2_PLL] = "video2_pll", 131 [VIDEO2_IN] = "video2_in", 132 }; 133 134 static const struct berlin2_pll_map bg2_pll_map __initconst = { 135 .vcodiv = {10, 15, 20, 25, 30, 40, 50, 60, 80}, 136 .mult = 10, 137 .fbdiv_shift = 6, 138 .rfdiv_shift = 1, 139 .divsel_shift = 7, 140 }; 141 142 static const u8 default_parent_ids[] = { 143 SYSPLL, AVPLL_B4, AVPLL_A5, AVPLL_B6, AVPLL_B7, SYSPLL 144 }; 145 146 static const struct berlin2_div_data bg2_divs[] __initconst = { 147 { 148 .name = "sys", 149 .parent_ids = (const u8 []){ 150 SYSPLL, AVPLL_B4, AVPLL_B5, AVPLL_B6, AVPLL_B7, SYSPLL 151 }, 152 .num_parents = 6, 153 .map = { 154 BERLIN2_DIV_GATE(REG_CLKENABLE, 0), 155 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 0), 156 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 3), 157 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 3), 158 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 4), 159 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 5), 160 }, 161 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 162 .flags = CLK_IGNORE_UNUSED, 163 }, 164 { 165 .name = "cpu", 166 .parent_ids = (const u8 []){ 167 CPUPLL, MEMPLL, MEMPLL, MEMPLL, MEMPLL 168 }, 169 .num_parents = 5, 170 .map = { 171 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 6), 172 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 9), 173 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 6), 174 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 7), 175 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 8), 176 }, 177 .div_flags = BERLIN2_DIV_HAS_MUX, 178 .flags = 0, 179 }, 180 { 181 .name = "drmfigo", 182 .parent_ids = default_parent_ids, 183 .num_parents = ARRAY_SIZE(default_parent_ids), 184 .map = { 185 BERLIN2_DIV_GATE(REG_CLKENABLE, 16), 186 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 17), 187 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 20), 188 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 12), 189 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 13), 190 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 14), 191 }, 192 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 193 .flags = 0, 194 }, 195 { 196 .name = "cfg", 197 .parent_ids = default_parent_ids, 198 .num_parents = ARRAY_SIZE(default_parent_ids), 199 .map = { 200 BERLIN2_DIV_GATE(REG_CLKENABLE, 1), 201 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 23), 202 BERLIN2_DIV_SELECT(REG_CLKSELECT0, 26), 203 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 15), 204 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 16), 205 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 17), 206 }, 207 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 208 .flags = 0, 209 }, 210 { 211 .name = "gfx", 212 .parent_ids = default_parent_ids, 213 .num_parents = ARRAY_SIZE(default_parent_ids), 214 .map = { 215 BERLIN2_DIV_GATE(REG_CLKENABLE, 4), 216 BERLIN2_PLL_SELECT(REG_CLKSELECT0, 29), 217 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 0), 218 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 18), 219 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 19), 220 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 20), 221 }, 222 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 223 .flags = 0, 224 }, 225 { 226 .name = "zsp", 227 .parent_ids = default_parent_ids, 228 .num_parents = ARRAY_SIZE(default_parent_ids), 229 .map = { 230 BERLIN2_DIV_GATE(REG_CLKENABLE, 5), 231 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 3), 232 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 6), 233 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 21), 234 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 22), 235 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 23), 236 }, 237 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 238 .flags = 0, 239 }, 240 { 241 .name = "perif", 242 .parent_ids = default_parent_ids, 243 .num_parents = ARRAY_SIZE(default_parent_ids), 244 .map = { 245 BERLIN2_DIV_GATE(REG_CLKENABLE, 6), 246 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 9), 247 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 12), 248 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 24), 249 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 25), 250 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 26), 251 }, 252 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 253 .flags = CLK_IGNORE_UNUSED, 254 }, 255 { 256 .name = "pcube", 257 .parent_ids = default_parent_ids, 258 .num_parents = ARRAY_SIZE(default_parent_ids), 259 .map = { 260 BERLIN2_DIV_GATE(REG_CLKENABLE, 2), 261 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 15), 262 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 18), 263 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 27), 264 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 28), 265 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 29), 266 }, 267 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 268 .flags = 0, 269 }, 270 { 271 .name = "vscope", 272 .parent_ids = default_parent_ids, 273 .num_parents = ARRAY_SIZE(default_parent_ids), 274 .map = { 275 BERLIN2_DIV_GATE(REG_CLKENABLE, 3), 276 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 21), 277 BERLIN2_DIV_SELECT(REG_CLKSELECT1, 24), 278 BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 30), 279 BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 31), 280 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 0), 281 }, 282 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 283 .flags = 0, 284 }, 285 { 286 .name = "nfc_ecc", 287 .parent_ids = default_parent_ids, 288 .num_parents = ARRAY_SIZE(default_parent_ids), 289 .map = { 290 BERLIN2_DIV_GATE(REG_CLKENABLE, 18), 291 BERLIN2_PLL_SELECT(REG_CLKSELECT1, 27), 292 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 0), 293 BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 1), 294 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 2), 295 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 3), 296 }, 297 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 298 .flags = 0, 299 }, 300 { 301 .name = "vpp", 302 .parent_ids = default_parent_ids, 303 .num_parents = ARRAY_SIZE(default_parent_ids), 304 .map = { 305 BERLIN2_DIV_GATE(REG_CLKENABLE, 21), 306 BERLIN2_PLL_SELECT(REG_CLKSELECT2, 3), 307 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 6), 308 BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 4), 309 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 5), 310 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 6), 311 }, 312 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 313 .flags = 0, 314 }, 315 { 316 .name = "app", 317 .parent_ids = default_parent_ids, 318 .num_parents = ARRAY_SIZE(default_parent_ids), 319 .map = { 320 BERLIN2_DIV_GATE(REG_CLKENABLE, 20), 321 BERLIN2_PLL_SELECT(REG_CLKSELECT2, 9), 322 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 12), 323 BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 7), 324 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 8), 325 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 9), 326 }, 327 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 328 .flags = 0, 329 }, 330 { 331 .name = "audio0", 332 .parent_ids = (const u8 []){ AUDIO_FAST_PLL }, 333 .num_parents = 1, 334 .map = { 335 BERLIN2_DIV_GATE(REG_CLKENABLE, 22), 336 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 17), 337 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 10), 338 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 11), 339 }, 340 .div_flags = BERLIN2_DIV_HAS_GATE, 341 .flags = 0, 342 }, 343 { 344 .name = "audio2", 345 .parent_ids = (const u8 []){ AUDIO_FAST_PLL }, 346 .num_parents = 1, 347 .map = { 348 BERLIN2_DIV_GATE(REG_CLKENABLE, 24), 349 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 20), 350 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 14), 351 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 15), 352 }, 353 .div_flags = BERLIN2_DIV_HAS_GATE, 354 .flags = 0, 355 }, 356 { 357 .name = "audio3", 358 .parent_ids = (const u8 []){ AUDIO_FAST_PLL }, 359 .num_parents = 1, 360 .map = { 361 BERLIN2_DIV_GATE(REG_CLKENABLE, 25), 362 BERLIN2_DIV_SELECT(REG_CLKSELECT2, 23), 363 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 16), 364 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 17), 365 }, 366 .div_flags = BERLIN2_DIV_HAS_GATE, 367 .flags = 0, 368 }, 369 { 370 .name = "audio1", 371 .parent_ids = (const u8 []){ AUDIO1_PLL }, 372 .num_parents = 1, 373 .map = { 374 BERLIN2_DIV_GATE(REG_CLKENABLE, 23), 375 BERLIN2_DIV_SELECT(REG_CLKSELECT3, 0), 376 BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 12), 377 BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 13), 378 }, 379 .div_flags = BERLIN2_DIV_HAS_GATE, 380 .flags = 0, 381 }, 382 { 383 .name = "gfx3d_core", 384 .parent_ids = default_parent_ids, 385 .num_parents = ARRAY_SIZE(default_parent_ids), 386 .map = { 387 BERLIN2_SINGLE_DIV(REG_GFX3DCORE_CLKCTL), 388 }, 389 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 390 .flags = 0, 391 }, 392 { 393 .name = "gfx3d_sys", 394 .parent_ids = default_parent_ids, 395 .num_parents = ARRAY_SIZE(default_parent_ids), 396 .map = { 397 BERLIN2_SINGLE_DIV(REG_GFX3DSYS_CLKCTL), 398 }, 399 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 400 .flags = 0, 401 }, 402 { 403 .name = "arc", 404 .parent_ids = default_parent_ids, 405 .num_parents = ARRAY_SIZE(default_parent_ids), 406 .map = { 407 BERLIN2_SINGLE_DIV(REG_ARC_CLKCTL), 408 }, 409 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 410 .flags = 0, 411 }, 412 { 413 .name = "vip", 414 .parent_ids = default_parent_ids, 415 .num_parents = ARRAY_SIZE(default_parent_ids), 416 .map = { 417 BERLIN2_SINGLE_DIV(REG_VIP_CLKCTL), 418 }, 419 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 420 .flags = 0, 421 }, 422 { 423 .name = "sdio0xin", 424 .parent_ids = default_parent_ids, 425 .num_parents = ARRAY_SIZE(default_parent_ids), 426 .map = { 427 BERLIN2_SINGLE_DIV(REG_SDIO0XIN_CLKCTL), 428 }, 429 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 430 .flags = 0, 431 }, 432 { 433 .name = "sdio1xin", 434 .parent_ids = default_parent_ids, 435 .num_parents = ARRAY_SIZE(default_parent_ids), 436 .map = { 437 BERLIN2_SINGLE_DIV(REG_SDIO1XIN_CLKCTL), 438 }, 439 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 440 .flags = 0, 441 }, 442 { 443 .name = "gfx3d_extra", 444 .parent_ids = default_parent_ids, 445 .num_parents = ARRAY_SIZE(default_parent_ids), 446 .map = { 447 BERLIN2_SINGLE_DIV(REG_GFX3DEXTRA_CLKCTL), 448 }, 449 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 450 .flags = 0, 451 }, 452 { 453 .name = "gc360", 454 .parent_ids = default_parent_ids, 455 .num_parents = ARRAY_SIZE(default_parent_ids), 456 .map = { 457 BERLIN2_SINGLE_DIV(REG_GC360_CLKCTL), 458 }, 459 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 460 .flags = 0, 461 }, 462 { 463 .name = "sdio_dllmst", 464 .parent_ids = default_parent_ids, 465 .num_parents = ARRAY_SIZE(default_parent_ids), 466 .map = { 467 BERLIN2_SINGLE_DIV(REG_SDIO_DLLMST_CLKCTL), 468 }, 469 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, 470 .flags = 0, 471 }, 472 }; 473 474 static const struct berlin2_gate_data bg2_gates[] __initconst = { 475 { "geth0", "perif", 7 }, 476 { "geth1", "perif", 8 }, 477 { "sata", "perif", 9 }, 478 { "ahbapb", "perif", 10, CLK_IGNORE_UNUSED }, 479 { "usb0", "perif", 11 }, 480 { "usb1", "perif", 12 }, 481 { "pbridge", "perif", 13, CLK_IGNORE_UNUSED }, 482 { "sdio0", "perif", 14 }, 483 { "sdio1", "perif", 15 }, 484 { "nfc", "perif", 17 }, 485 { "smemc", "perif", 19 }, 486 { "audiohd", "audiohd_pll", 26 }, 487 { "video0", "video0_in", 27 }, 488 { "video1", "video1_in", 28 }, 489 { "video2", "video2_in", 29 }, 490 }; 491 berlin2_clock_setup(struct device_node * np)492 static void __init berlin2_clock_setup(struct device_node *np) 493 { 494 struct device_node *parent_np = of_get_parent(np); 495 const char *parent_names[9]; 496 struct clk *clk; 497 struct clk_hw *hw; 498 struct clk_hw **hws; 499 u8 avpll_flags = 0; 500 int n, ret; 501 502 clk_data = kzalloc(struct_size(clk_data, hws, MAX_CLKS), GFP_KERNEL); 503 if (!clk_data) { 504 of_node_put(parent_np); 505 return; 506 } 507 clk_data->num = MAX_CLKS; 508 hws = clk_data->hws; 509 510 gbase = of_iomap(parent_np, 0); 511 of_node_put(parent_np); 512 if (!gbase) 513 return; 514 515 /* overwrite default clock names with DT provided ones */ 516 clk = of_clk_get_by_name(np, clk_names[REFCLK]); 517 if (!IS_ERR(clk)) { 518 clk_names[REFCLK] = __clk_get_name(clk); 519 clk_put(clk); 520 } 521 522 clk = of_clk_get_by_name(np, clk_names[VIDEO_EXT0]); 523 if (!IS_ERR(clk)) { 524 clk_names[VIDEO_EXT0] = __clk_get_name(clk); 525 clk_put(clk); 526 } 527 528 /* simple register PLLs */ 529 ret = berlin2_pll_register(&bg2_pll_map, gbase + REG_SYSPLLCTL0, 530 clk_names[SYSPLL], clk_names[REFCLK], 0); 531 if (ret) 532 goto bg2_fail; 533 534 ret = berlin2_pll_register(&bg2_pll_map, gbase + REG_MEMPLLCTL0, 535 clk_names[MEMPLL], clk_names[REFCLK], 0); 536 if (ret) 537 goto bg2_fail; 538 539 ret = berlin2_pll_register(&bg2_pll_map, gbase + REG_CPUPLLCTL0, 540 clk_names[CPUPLL], clk_names[REFCLK], 0); 541 if (ret) 542 goto bg2_fail; 543 544 if (of_device_is_compatible(np, "marvell,berlin2-global-register")) 545 avpll_flags |= BERLIN2_AVPLL_SCRAMBLE_QUIRK; 546 547 /* audio/video VCOs */ 548 ret = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL0, "avpll_vcoA", 549 clk_names[REFCLK], avpll_flags, 0); 550 if (ret) 551 goto bg2_fail; 552 553 for (n = 0; n < 8; n++) { 554 ret = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL0, 555 clk_names[AVPLL_A1 + n], n, "avpll_vcoA", 556 avpll_flags, 0); 557 if (ret) 558 goto bg2_fail; 559 } 560 561 ret = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL31, "avpll_vcoB", 562 clk_names[REFCLK], BERLIN2_AVPLL_BIT_QUIRK | 563 avpll_flags, 0); 564 if (ret) 565 goto bg2_fail; 566 567 for (n = 0; n < 8; n++) { 568 ret = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL31, 569 clk_names[AVPLL_B1 + n], n, "avpll_vcoB", 570 BERLIN2_AVPLL_BIT_QUIRK | avpll_flags, 0); 571 if (ret) 572 goto bg2_fail; 573 } 574 575 /* reference clock bypass switches */ 576 parent_names[0] = clk_names[SYSPLL]; 577 parent_names[1] = clk_names[REFCLK]; 578 hw = clk_hw_register_mux(NULL, "syspll_byp", parent_names, 2, 579 0, gbase + REG_CLKSWITCH0, 0, 1, 0, &lock); 580 if (IS_ERR(hw)) 581 goto bg2_fail; 582 clk_names[SYSPLL] = clk_hw_get_name(hw); 583 584 parent_names[0] = clk_names[MEMPLL]; 585 parent_names[1] = clk_names[REFCLK]; 586 hw = clk_hw_register_mux(NULL, "mempll_byp", parent_names, 2, 587 0, gbase + REG_CLKSWITCH0, 1, 1, 0, &lock); 588 if (IS_ERR(hw)) 589 goto bg2_fail; 590 clk_names[MEMPLL] = clk_hw_get_name(hw); 591 592 parent_names[0] = clk_names[CPUPLL]; 593 parent_names[1] = clk_names[REFCLK]; 594 hw = clk_hw_register_mux(NULL, "cpupll_byp", parent_names, 2, 595 0, gbase + REG_CLKSWITCH0, 2, 1, 0, &lock); 596 if (IS_ERR(hw)) 597 goto bg2_fail; 598 clk_names[CPUPLL] = clk_hw_get_name(hw); 599 600 /* clock muxes */ 601 parent_names[0] = clk_names[AVPLL_B3]; 602 parent_names[1] = clk_names[AVPLL_A3]; 603 hw = clk_hw_register_mux(NULL, clk_names[AUDIO1_PLL], parent_names, 2, 604 0, gbase + REG_CLKSELECT2, 29, 1, 0, &lock); 605 if (IS_ERR(hw)) 606 goto bg2_fail; 607 608 parent_names[0] = clk_names[VIDEO0_PLL]; 609 parent_names[1] = clk_names[VIDEO_EXT0]; 610 hw = clk_hw_register_mux(NULL, clk_names[VIDEO0_IN], parent_names, 2, 611 0, gbase + REG_CLKSELECT3, 4, 1, 0, &lock); 612 if (IS_ERR(hw)) 613 goto bg2_fail; 614 615 parent_names[0] = clk_names[VIDEO1_PLL]; 616 parent_names[1] = clk_names[VIDEO_EXT0]; 617 hw = clk_hw_register_mux(NULL, clk_names[VIDEO1_IN], parent_names, 2, 618 0, gbase + REG_CLKSELECT3, 6, 1, 0, &lock); 619 if (IS_ERR(hw)) 620 goto bg2_fail; 621 622 parent_names[0] = clk_names[AVPLL_A2]; 623 parent_names[1] = clk_names[AVPLL_B2]; 624 hw = clk_hw_register_mux(NULL, clk_names[VIDEO1_PLL], parent_names, 2, 625 0, gbase + REG_CLKSELECT3, 7, 1, 0, &lock); 626 if (IS_ERR(hw)) 627 goto bg2_fail; 628 629 parent_names[0] = clk_names[VIDEO2_PLL]; 630 parent_names[1] = clk_names[VIDEO_EXT0]; 631 hw = clk_hw_register_mux(NULL, clk_names[VIDEO2_IN], parent_names, 2, 632 0, gbase + REG_CLKSELECT3, 9, 1, 0, &lock); 633 if (IS_ERR(hw)) 634 goto bg2_fail; 635 636 parent_names[0] = clk_names[AVPLL_B1]; 637 parent_names[1] = clk_names[AVPLL_A5]; 638 hw = clk_hw_register_mux(NULL, clk_names[VIDEO2_PLL], parent_names, 2, 639 0, gbase + REG_CLKSELECT3, 10, 1, 0, &lock); 640 if (IS_ERR(hw)) 641 goto bg2_fail; 642 643 /* clock divider cells */ 644 for (n = 0; n < ARRAY_SIZE(bg2_divs); n++) { 645 const struct berlin2_div_data *dd = &bg2_divs[n]; 646 int k; 647 648 for (k = 0; k < dd->num_parents; k++) 649 parent_names[k] = clk_names[dd->parent_ids[k]]; 650 651 hws[CLKID_SYS + n] = berlin2_div_register(&dd->map, gbase, 652 dd->name, dd->div_flags, parent_names, 653 dd->num_parents, dd->flags, &lock); 654 } 655 656 /* clock gate cells */ 657 for (n = 0; n < ARRAY_SIZE(bg2_gates); n++) { 658 const struct berlin2_gate_data *gd = &bg2_gates[n]; 659 660 hws[CLKID_GETH0 + n] = clk_hw_register_gate(NULL, gd->name, 661 gd->parent_name, gd->flags, gbase + REG_CLKENABLE, 662 gd->bit_idx, 0, &lock); 663 } 664 665 /* twdclk is derived from cpu/3 */ 666 hws[CLKID_TWD] = 667 clk_hw_register_fixed_factor(NULL, "twd", "cpu", 0, 1, 3); 668 669 /* check for errors on leaf clocks */ 670 for (n = 0; n < MAX_CLKS; n++) { 671 if (!IS_ERR(hws[n])) 672 continue; 673 674 pr_err("%pOF: Unable to register leaf clock %d\n", np, n); 675 goto bg2_fail; 676 } 677 678 /* register clk-provider */ 679 of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data); 680 681 return; 682 683 bg2_fail: 684 iounmap(gbase); 685 } 686 CLK_OF_DECLARE(berlin2_clk, "marvell,berlin2-clk", 687 berlin2_clock_setup); 688