Sebastian Hesselbarth | ba0fae3 | 2014-05-19 18:43:27 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014 Marvell Technology Group Ltd. |
| 3 | * |
| 4 | * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> |
| 5 | * Alexandre Belloni <alexandre.belloni@free-electrons.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify it |
| 8 | * under the terms and conditions of the GNU General Public License, |
| 9 | * version 2, as published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 14 | * more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License along with |
| 17 | * this program. If not, see <http://www.gnu.org/licenses/>. |
| 18 | */ |
| 19 | |
| 20 | #include <linux/clk.h> |
| 21 | #include <linux/clk-provider.h> |
| 22 | #include <linux/kernel.h> |
| 23 | #include <linux/of.h> |
| 24 | #include <linux/of_address.h> |
| 25 | #include <linux/slab.h> |
| 26 | |
| 27 | #include <dt-bindings/clock/berlin2.h> |
| 28 | |
| 29 | #include "berlin2-avpll.h" |
| 30 | #include "berlin2-div.h" |
| 31 | #include "berlin2-pll.h" |
| 32 | #include "common.h" |
| 33 | |
| 34 | #define REG_PINMUX0 0x0000 |
| 35 | #define REG_PINMUX1 0x0004 |
| 36 | #define REG_SYSPLLCTL0 0x0014 |
| 37 | #define REG_SYSPLLCTL4 0x0024 |
| 38 | #define REG_MEMPLLCTL0 0x0028 |
| 39 | #define REG_MEMPLLCTL4 0x0038 |
| 40 | #define REG_CPUPLLCTL0 0x003c |
| 41 | #define REG_CPUPLLCTL4 0x004c |
| 42 | #define REG_AVPLLCTL0 0x0050 |
| 43 | #define REG_AVPLLCTL31 0x00cc |
| 44 | #define REG_AVPLLCTL62 0x0148 |
| 45 | #define REG_PLLSTATUS 0x014c |
| 46 | #define REG_CLKENABLE 0x0150 |
| 47 | #define REG_CLKSELECT0 0x0154 |
| 48 | #define REG_CLKSELECT1 0x0158 |
| 49 | #define REG_CLKSELECT2 0x015c |
| 50 | #define REG_CLKSELECT3 0x0160 |
| 51 | #define REG_CLKSWITCH0 0x0164 |
| 52 | #define REG_CLKSWITCH1 0x0168 |
| 53 | #define REG_RESET_TRIGGER 0x0178 |
| 54 | #define REG_RESET_STATUS0 0x017c |
| 55 | #define REG_RESET_STATUS1 0x0180 |
| 56 | #define REG_SW_GENERIC0 0x0184 |
| 57 | #define REG_SW_GENERIC3 0x0190 |
| 58 | #define REG_PRODUCTID 0x01cc |
| 59 | #define REG_PRODUCTID_EXT 0x01d0 |
| 60 | #define REG_GFX3DCORE_CLKCTL 0x022c |
| 61 | #define REG_GFX3DSYS_CLKCTL 0x0230 |
| 62 | #define REG_ARC_CLKCTL 0x0234 |
| 63 | #define REG_VIP_CLKCTL 0x0238 |
| 64 | #define REG_SDIO0XIN_CLKCTL 0x023c |
| 65 | #define REG_SDIO1XIN_CLKCTL 0x0240 |
| 66 | #define REG_GFX3DEXTRA_CLKCTL 0x0244 |
| 67 | #define REG_GFX3D_RESET 0x0248 |
| 68 | #define REG_GC360_CLKCTL 0x024c |
| 69 | #define REG_SDIO_DLLMST_CLKCTL 0x0250 |
| 70 | |
| 71 | /* |
| 72 | * BG2/BG2CD SoCs have the following audio/video I/O units: |
| 73 | * |
| 74 | * audiohd: HDMI TX audio |
| 75 | * audio0: 7.1ch TX |
| 76 | * audio1: 2ch TX |
| 77 | * audio2: 2ch RX |
| 78 | * audio3: SPDIF TX |
| 79 | * video0: HDMI video |
| 80 | * video1: Secondary video |
| 81 | * video2: SD auxiliary video |
| 82 | * |
| 83 | * There are no external audio clocks (ACLKI0, ACLKI1) and |
| 84 | * only one external video clock (VCLKI0). |
| 85 | * |
| 86 | * Currently missing bits and pieces: |
| 87 | * - audio_fast_pll is unknown |
| 88 | * - audiohd_pll is unknown |
| 89 | * - video0_pll is unknown |
| 90 | * - audio[023], audiohd parent pll is assumed to be audio_fast_pll |
| 91 | * |
| 92 | */ |
| 93 | |
| 94 | #define MAX_CLKS 41 |
| 95 | static struct clk *clks[MAX_CLKS]; |
| 96 | static struct clk_onecell_data clk_data; |
| 97 | static DEFINE_SPINLOCK(lock); |
| 98 | static void __iomem *gbase; |
| 99 | |
| 100 | enum { |
| 101 | REFCLK, VIDEO_EXT0, |
| 102 | SYSPLL, MEMPLL, CPUPLL, |
| 103 | AVPLL_A1, AVPLL_A2, AVPLL_A3, AVPLL_A4, |
| 104 | AVPLL_A5, AVPLL_A6, AVPLL_A7, AVPLL_A8, |
| 105 | AVPLL_B1, AVPLL_B2, AVPLL_B3, AVPLL_B4, |
| 106 | AVPLL_B5, AVPLL_B6, AVPLL_B7, AVPLL_B8, |
| 107 | AUDIO1_PLL, AUDIO_FAST_PLL, |
| 108 | VIDEO0_PLL, VIDEO0_IN, |
| 109 | VIDEO1_PLL, VIDEO1_IN, |
| 110 | VIDEO2_PLL, VIDEO2_IN, |
| 111 | }; |
| 112 | |
| 113 | static const char *clk_names[] = { |
| 114 | [REFCLK] = "refclk", |
| 115 | [VIDEO_EXT0] = "video_ext0", |
| 116 | [SYSPLL] = "syspll", |
| 117 | [MEMPLL] = "mempll", |
| 118 | [CPUPLL] = "cpupll", |
| 119 | [AVPLL_A1] = "avpll_a1", |
| 120 | [AVPLL_A2] = "avpll_a2", |
| 121 | [AVPLL_A3] = "avpll_a3", |
| 122 | [AVPLL_A4] = "avpll_a4", |
| 123 | [AVPLL_A5] = "avpll_a5", |
| 124 | [AVPLL_A6] = "avpll_a6", |
| 125 | [AVPLL_A7] = "avpll_a7", |
| 126 | [AVPLL_A8] = "avpll_a8", |
| 127 | [AVPLL_B1] = "avpll_b1", |
| 128 | [AVPLL_B2] = "avpll_b2", |
| 129 | [AVPLL_B3] = "avpll_b3", |
| 130 | [AVPLL_B4] = "avpll_b4", |
| 131 | [AVPLL_B5] = "avpll_b5", |
| 132 | [AVPLL_B6] = "avpll_b6", |
| 133 | [AVPLL_B7] = "avpll_b7", |
| 134 | [AVPLL_B8] = "avpll_b8", |
| 135 | [AUDIO1_PLL] = "audio1_pll", |
| 136 | [AUDIO_FAST_PLL] = "audio_fast_pll", |
| 137 | [VIDEO0_PLL] = "video0_pll", |
| 138 | [VIDEO0_IN] = "video0_in", |
| 139 | [VIDEO1_PLL] = "video1_pll", |
| 140 | [VIDEO1_IN] = "video1_in", |
| 141 | [VIDEO2_PLL] = "video2_pll", |
| 142 | [VIDEO2_IN] = "video2_in", |
| 143 | }; |
| 144 | |
| 145 | static const struct berlin2_pll_map bg2_pll_map __initconst = { |
| 146 | .vcodiv = {10, 15, 20, 25, 30, 40, 50, 60, 80}, |
| 147 | .mult = 10, |
| 148 | .fbdiv_shift = 6, |
| 149 | .rfdiv_shift = 1, |
| 150 | .divsel_shift = 7, |
| 151 | }; |
| 152 | |
| 153 | static const u8 default_parent_ids[] = { |
| 154 | SYSPLL, AVPLL_B4, AVPLL_A5, AVPLL_B6, AVPLL_B7, SYSPLL |
| 155 | }; |
| 156 | |
| 157 | static const struct berlin2_div_data bg2_divs[] __initconst = { |
| 158 | { |
| 159 | .name = "sys", |
| 160 | .parent_ids = (const u8 []){ |
| 161 | SYSPLL, AVPLL_B4, AVPLL_B5, AVPLL_B6, AVPLL_B7, SYSPLL |
| 162 | }, |
| 163 | .num_parents = 6, |
| 164 | .map = { |
| 165 | BERLIN2_DIV_GATE(REG_CLKENABLE, 0), |
| 166 | BERLIN2_PLL_SELECT(REG_CLKSELECT0, 0), |
| 167 | BERLIN2_DIV_SELECT(REG_CLKSELECT0, 3), |
| 168 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 3), |
| 169 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 4), |
| 170 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 5), |
| 171 | }, |
| 172 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 173 | .flags = CLK_IGNORE_UNUSED, |
| 174 | }, |
| 175 | { |
| 176 | .name = "cpu", |
| 177 | .parent_ids = (const u8 []){ |
| 178 | CPUPLL, MEMPLL, MEMPLL, MEMPLL, MEMPLL |
| 179 | }, |
| 180 | .num_parents = 5, |
| 181 | .map = { |
| 182 | BERLIN2_PLL_SELECT(REG_CLKSELECT0, 6), |
| 183 | BERLIN2_DIV_SELECT(REG_CLKSELECT0, 9), |
| 184 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 6), |
| 185 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 7), |
| 186 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 8), |
| 187 | }, |
| 188 | .div_flags = BERLIN2_DIV_HAS_MUX, |
| 189 | .flags = 0, |
| 190 | }, |
| 191 | { |
| 192 | .name = "drmfigo", |
| 193 | .parent_ids = default_parent_ids, |
| 194 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 195 | .map = { |
| 196 | BERLIN2_DIV_GATE(REG_CLKENABLE, 16), |
| 197 | BERLIN2_PLL_SELECT(REG_CLKSELECT0, 17), |
| 198 | BERLIN2_DIV_SELECT(REG_CLKSELECT0, 20), |
| 199 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 12), |
| 200 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 13), |
| 201 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 14), |
| 202 | }, |
| 203 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 204 | .flags = 0, |
| 205 | }, |
| 206 | { |
| 207 | .name = "cfg", |
| 208 | .parent_ids = default_parent_ids, |
| 209 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 210 | .map = { |
| 211 | BERLIN2_DIV_GATE(REG_CLKENABLE, 1), |
| 212 | BERLIN2_PLL_SELECT(REG_CLKSELECT0, 23), |
| 213 | BERLIN2_DIV_SELECT(REG_CLKSELECT0, 26), |
| 214 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 15), |
| 215 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 16), |
| 216 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 17), |
| 217 | }, |
| 218 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 219 | .flags = 0, |
| 220 | }, |
| 221 | { |
| 222 | .name = "gfx", |
| 223 | .parent_ids = default_parent_ids, |
| 224 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 225 | .map = { |
| 226 | BERLIN2_DIV_GATE(REG_CLKENABLE, 4), |
| 227 | BERLIN2_PLL_SELECT(REG_CLKSELECT0, 29), |
| 228 | BERLIN2_DIV_SELECT(REG_CLKSELECT1, 0), |
| 229 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 18), |
| 230 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 19), |
| 231 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 20), |
| 232 | }, |
| 233 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 234 | .flags = 0, |
| 235 | }, |
| 236 | { |
| 237 | .name = "zsp", |
| 238 | .parent_ids = default_parent_ids, |
| 239 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 240 | .map = { |
| 241 | BERLIN2_DIV_GATE(REG_CLKENABLE, 5), |
| 242 | BERLIN2_PLL_SELECT(REG_CLKSELECT1, 3), |
| 243 | BERLIN2_DIV_SELECT(REG_CLKSELECT1, 6), |
| 244 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 21), |
| 245 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 22), |
| 246 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 23), |
| 247 | }, |
| 248 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 249 | .flags = 0, |
| 250 | }, |
| 251 | { |
| 252 | .name = "perif", |
| 253 | .parent_ids = default_parent_ids, |
| 254 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 255 | .map = { |
| 256 | BERLIN2_DIV_GATE(REG_CLKENABLE, 6), |
| 257 | BERLIN2_PLL_SELECT(REG_CLKSELECT1, 9), |
| 258 | BERLIN2_DIV_SELECT(REG_CLKSELECT1, 12), |
| 259 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 24), |
| 260 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 25), |
| 261 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 26), |
| 262 | }, |
| 263 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 264 | .flags = CLK_IGNORE_UNUSED, |
| 265 | }, |
| 266 | { |
| 267 | .name = "pcube", |
| 268 | .parent_ids = default_parent_ids, |
| 269 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 270 | .map = { |
| 271 | BERLIN2_DIV_GATE(REG_CLKENABLE, 2), |
| 272 | BERLIN2_PLL_SELECT(REG_CLKSELECT1, 15), |
| 273 | BERLIN2_DIV_SELECT(REG_CLKSELECT1, 18), |
| 274 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 27), |
| 275 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 28), |
| 276 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 29), |
| 277 | }, |
| 278 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 279 | .flags = 0, |
| 280 | }, |
| 281 | { |
| 282 | .name = "vscope", |
| 283 | .parent_ids = default_parent_ids, |
| 284 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 285 | .map = { |
| 286 | BERLIN2_DIV_GATE(REG_CLKENABLE, 3), |
| 287 | BERLIN2_PLL_SELECT(REG_CLKSELECT1, 21), |
| 288 | BERLIN2_DIV_SELECT(REG_CLKSELECT1, 24), |
| 289 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 30), |
| 290 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 31), |
| 291 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 0), |
| 292 | }, |
| 293 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 294 | .flags = 0, |
| 295 | }, |
| 296 | { |
| 297 | .name = "nfc_ecc", |
| 298 | .parent_ids = default_parent_ids, |
| 299 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 300 | .map = { |
| 301 | BERLIN2_DIV_GATE(REG_CLKENABLE, 18), |
| 302 | BERLIN2_PLL_SELECT(REG_CLKSELECT1, 27), |
| 303 | BERLIN2_DIV_SELECT(REG_CLKSELECT2, 0), |
| 304 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 1), |
| 305 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 2), |
| 306 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 3), |
| 307 | }, |
| 308 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 309 | .flags = 0, |
| 310 | }, |
| 311 | { |
| 312 | .name = "vpp", |
| 313 | .parent_ids = default_parent_ids, |
| 314 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 315 | .map = { |
| 316 | BERLIN2_DIV_GATE(REG_CLKENABLE, 21), |
| 317 | BERLIN2_PLL_SELECT(REG_CLKSELECT2, 3), |
| 318 | BERLIN2_DIV_SELECT(REG_CLKSELECT2, 6), |
| 319 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 4), |
| 320 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 5), |
| 321 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 6), |
| 322 | }, |
| 323 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 324 | .flags = 0, |
| 325 | }, |
| 326 | { |
| 327 | .name = "app", |
| 328 | .parent_ids = default_parent_ids, |
| 329 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 330 | .map = { |
| 331 | BERLIN2_DIV_GATE(REG_CLKENABLE, 20), |
| 332 | BERLIN2_PLL_SELECT(REG_CLKSELECT2, 9), |
| 333 | BERLIN2_DIV_SELECT(REG_CLKSELECT2, 12), |
| 334 | BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 7), |
| 335 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 8), |
| 336 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 9), |
| 337 | }, |
| 338 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 339 | .flags = 0, |
| 340 | }, |
| 341 | { |
| 342 | .name = "audio0", |
| 343 | .parent_ids = (const u8 []){ AUDIO_FAST_PLL }, |
| 344 | .num_parents = 1, |
| 345 | .map = { |
| 346 | BERLIN2_DIV_GATE(REG_CLKENABLE, 22), |
| 347 | BERLIN2_DIV_SELECT(REG_CLKSELECT2, 17), |
| 348 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 10), |
| 349 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 11), |
| 350 | }, |
| 351 | .div_flags = BERLIN2_DIV_HAS_GATE, |
| 352 | .flags = 0, |
| 353 | }, |
| 354 | { |
| 355 | .name = "audio2", |
| 356 | .parent_ids = (const u8 []){ AUDIO_FAST_PLL }, |
| 357 | .num_parents = 1, |
| 358 | .map = { |
| 359 | BERLIN2_DIV_GATE(REG_CLKENABLE, 24), |
| 360 | BERLIN2_DIV_SELECT(REG_CLKSELECT2, 20), |
| 361 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 14), |
| 362 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 15), |
| 363 | }, |
| 364 | .div_flags = BERLIN2_DIV_HAS_GATE, |
| 365 | .flags = 0, |
| 366 | }, |
| 367 | { |
| 368 | .name = "audio3", |
| 369 | .parent_ids = (const u8 []){ AUDIO_FAST_PLL }, |
| 370 | .num_parents = 1, |
| 371 | .map = { |
| 372 | BERLIN2_DIV_GATE(REG_CLKENABLE, 25), |
| 373 | BERLIN2_DIV_SELECT(REG_CLKSELECT2, 23), |
| 374 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 16), |
| 375 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 17), |
| 376 | }, |
| 377 | .div_flags = BERLIN2_DIV_HAS_GATE, |
| 378 | .flags = 0, |
| 379 | }, |
| 380 | { |
| 381 | .name = "audio1", |
| 382 | .parent_ids = (const u8 []){ AUDIO1_PLL }, |
| 383 | .num_parents = 1, |
| 384 | .map = { |
| 385 | BERLIN2_DIV_GATE(REG_CLKENABLE, 23), |
| 386 | BERLIN2_DIV_SELECT(REG_CLKSELECT3, 0), |
| 387 | BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 12), |
| 388 | BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 13), |
| 389 | }, |
| 390 | .div_flags = BERLIN2_DIV_HAS_GATE, |
| 391 | .flags = 0, |
| 392 | }, |
| 393 | { |
| 394 | .name = "gfx3d_core", |
| 395 | .parent_ids = default_parent_ids, |
| 396 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 397 | .map = { |
| 398 | BERLIN2_SINGLE_DIV(REG_GFX3DCORE_CLKCTL), |
| 399 | }, |
| 400 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 401 | .flags = 0, |
| 402 | }, |
| 403 | { |
| 404 | .name = "gfx3d_sys", |
| 405 | .parent_ids = default_parent_ids, |
| 406 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 407 | .map = { |
| 408 | BERLIN2_SINGLE_DIV(REG_GFX3DSYS_CLKCTL), |
| 409 | }, |
| 410 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 411 | .flags = 0, |
| 412 | }, |
| 413 | { |
| 414 | .name = "arc", |
| 415 | .parent_ids = default_parent_ids, |
| 416 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 417 | .map = { |
| 418 | BERLIN2_SINGLE_DIV(REG_ARC_CLKCTL), |
| 419 | }, |
| 420 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 421 | .flags = 0, |
| 422 | }, |
| 423 | { |
| 424 | .name = "vip", |
| 425 | .parent_ids = default_parent_ids, |
| 426 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 427 | .map = { |
| 428 | BERLIN2_SINGLE_DIV(REG_VIP_CLKCTL), |
| 429 | }, |
| 430 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 431 | .flags = 0, |
| 432 | }, |
| 433 | { |
| 434 | .name = "sdio0xin", |
| 435 | .parent_ids = default_parent_ids, |
| 436 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 437 | .map = { |
| 438 | BERLIN2_SINGLE_DIV(REG_SDIO0XIN_CLKCTL), |
| 439 | }, |
| 440 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 441 | .flags = 0, |
| 442 | }, |
| 443 | { |
| 444 | .name = "sdio1xin", |
| 445 | .parent_ids = default_parent_ids, |
| 446 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 447 | .map = { |
| 448 | BERLIN2_SINGLE_DIV(REG_SDIO1XIN_CLKCTL), |
| 449 | }, |
| 450 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 451 | .flags = 0, |
| 452 | }, |
| 453 | { |
| 454 | .name = "gfx3d_extra", |
| 455 | .parent_ids = default_parent_ids, |
| 456 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 457 | .map = { |
| 458 | BERLIN2_SINGLE_DIV(REG_GFX3DEXTRA_CLKCTL), |
| 459 | }, |
| 460 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 461 | .flags = 0, |
| 462 | }, |
| 463 | { |
| 464 | .name = "gc360", |
| 465 | .parent_ids = default_parent_ids, |
| 466 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 467 | .map = { |
| 468 | BERLIN2_SINGLE_DIV(REG_GC360_CLKCTL), |
| 469 | }, |
| 470 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 471 | .flags = 0, |
| 472 | }, |
| 473 | { |
| 474 | .name = "sdio_dllmst", |
| 475 | .parent_ids = default_parent_ids, |
| 476 | .num_parents = ARRAY_SIZE(default_parent_ids), |
| 477 | .map = { |
| 478 | BERLIN2_SINGLE_DIV(REG_SDIO_DLLMST_CLKCTL), |
| 479 | }, |
| 480 | .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX, |
| 481 | .flags = 0, |
| 482 | }, |
| 483 | }; |
| 484 | |
| 485 | static const struct berlin2_gate_data bg2_gates[] __initconst = { |
| 486 | { "geth0", "perif", 7 }, |
| 487 | { "geth1", "perif", 8 }, |
| 488 | { "sata", "perif", 9 }, |
| 489 | { "ahbapb", "perif", 10, CLK_IGNORE_UNUSED }, |
| 490 | { "usb0", "perif", 11 }, |
| 491 | { "usb1", "perif", 12 }, |
| 492 | { "pbridge", "perif", 13, CLK_IGNORE_UNUSED }, |
| 493 | { "sdio0", "perif", 14, CLK_IGNORE_UNUSED }, |
| 494 | { "sdio1", "perif", 15, CLK_IGNORE_UNUSED }, |
| 495 | { "nfc", "perif", 17 }, |
| 496 | { "smemc", "perif", 19 }, |
| 497 | { "audiohd", "audiohd_pll", 26 }, |
| 498 | { "video0", "video0_in", 27 }, |
| 499 | { "video1", "video1_in", 28 }, |
| 500 | { "video2", "video2_in", 29 }, |
| 501 | }; |
| 502 | |
| 503 | static void __init berlin2_clock_setup(struct device_node *np) |
| 504 | { |
Antoine Tenart | 26b3b6b | 2015-05-16 01:40:15 +0200 | [diff] [blame] | 505 | struct device_node *parent_np = of_get_parent(np); |
Sebastian Hesselbarth | ba0fae3 | 2014-05-19 18:43:27 +0200 | [diff] [blame] | 506 | const char *parent_names[9]; |
| 507 | struct clk *clk; |
| 508 | u8 avpll_flags = 0; |
| 509 | int n; |
| 510 | |
Antoine Tenart | fd26031 | 2015-05-16 01:50:34 +0200 | [diff] [blame] | 511 | gbase = of_iomap(parent_np, 0); |
Sebastian Hesselbarth | ba0fae3 | 2014-05-19 18:43:27 +0200 | [diff] [blame] | 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 | clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_SYSPLLCTL0, |
| 530 | clk_names[SYSPLL], clk_names[REFCLK], 0); |
| 531 | if (IS_ERR(clk)) |
| 532 | goto bg2_fail; |
| 533 | |
| 534 | clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_MEMPLLCTL0, |
| 535 | clk_names[MEMPLL], clk_names[REFCLK], 0); |
| 536 | if (IS_ERR(clk)) |
| 537 | goto bg2_fail; |
| 538 | |
| 539 | clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_CPUPLLCTL0, |
| 540 | clk_names[CPUPLL], clk_names[REFCLK], 0); |
| 541 | if (IS_ERR(clk)) |
| 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 | clk = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL0, "avpll_vcoA", |
| 549 | clk_names[REFCLK], avpll_flags, 0); |
| 550 | if (IS_ERR(clk)) |
| 551 | goto bg2_fail; |
| 552 | |
| 553 | for (n = 0; n < 8; n++) { |
| 554 | clk = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL0, |
| 555 | clk_names[AVPLL_A1 + n], n, "avpll_vcoA", |
| 556 | avpll_flags, 0); |
| 557 | if (IS_ERR(clk)) |
| 558 | goto bg2_fail; |
| 559 | } |
| 560 | |
| 561 | clk = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL31, "avpll_vcoB", |
| 562 | clk_names[REFCLK], BERLIN2_AVPLL_BIT_QUIRK | |
| 563 | avpll_flags, 0); |
| 564 | if (IS_ERR(clk)) |
| 565 | goto bg2_fail; |
| 566 | |
| 567 | for (n = 0; n < 8; n++) { |
| 568 | clk = 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 (IS_ERR(clk)) |
| 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 | clk = clk_register_mux(NULL, "syspll_byp", parent_names, 2, |
| 579 | 0, gbase + REG_CLKSWITCH0, 0, 1, 0, &lock); |
| 580 | if (IS_ERR(clk)) |
| 581 | goto bg2_fail; |
| 582 | clk_names[SYSPLL] = __clk_get_name(clk); |
| 583 | |
| 584 | parent_names[0] = clk_names[MEMPLL]; |
| 585 | parent_names[1] = clk_names[REFCLK]; |
| 586 | clk = clk_register_mux(NULL, "mempll_byp", parent_names, 2, |
| 587 | 0, gbase + REG_CLKSWITCH0, 1, 1, 0, &lock); |
| 588 | if (IS_ERR(clk)) |
| 589 | goto bg2_fail; |
| 590 | clk_names[MEMPLL] = __clk_get_name(clk); |
| 591 | |
| 592 | parent_names[0] = clk_names[CPUPLL]; |
| 593 | parent_names[1] = clk_names[REFCLK]; |
| 594 | clk = clk_register_mux(NULL, "cpupll_byp", parent_names, 2, |
| 595 | 0, gbase + REG_CLKSWITCH0, 2, 1, 0, &lock); |
| 596 | if (IS_ERR(clk)) |
| 597 | goto bg2_fail; |
| 598 | clk_names[CPUPLL] = __clk_get_name(clk); |
| 599 | |
| 600 | /* clock muxes */ |
| 601 | parent_names[0] = clk_names[AVPLL_B3]; |
| 602 | parent_names[1] = clk_names[AVPLL_A3]; |
| 603 | clk = clk_register_mux(NULL, clk_names[AUDIO1_PLL], parent_names, 2, |
| 604 | 0, gbase + REG_CLKSELECT2, 29, 1, 0, &lock); |
| 605 | if (IS_ERR(clk)) |
| 606 | goto bg2_fail; |
| 607 | |
| 608 | parent_names[0] = clk_names[VIDEO0_PLL]; |
| 609 | parent_names[1] = clk_names[VIDEO_EXT0]; |
| 610 | clk = clk_register_mux(NULL, clk_names[VIDEO0_IN], parent_names, 2, |
| 611 | 0, gbase + REG_CLKSELECT3, 4, 1, 0, &lock); |
| 612 | if (IS_ERR(clk)) |
| 613 | goto bg2_fail; |
| 614 | |
| 615 | parent_names[0] = clk_names[VIDEO1_PLL]; |
| 616 | parent_names[1] = clk_names[VIDEO_EXT0]; |
| 617 | clk = clk_register_mux(NULL, clk_names[VIDEO1_IN], parent_names, 2, |
| 618 | 0, gbase + REG_CLKSELECT3, 6, 1, 0, &lock); |
| 619 | if (IS_ERR(clk)) |
| 620 | goto bg2_fail; |
| 621 | |
| 622 | parent_names[0] = clk_names[AVPLL_A2]; |
| 623 | parent_names[1] = clk_names[AVPLL_B2]; |
| 624 | clk = clk_register_mux(NULL, clk_names[VIDEO1_PLL], parent_names, 2, |
| 625 | 0, gbase + REG_CLKSELECT3, 7, 1, 0, &lock); |
| 626 | if (IS_ERR(clk)) |
| 627 | goto bg2_fail; |
| 628 | |
| 629 | parent_names[0] = clk_names[VIDEO2_PLL]; |
| 630 | parent_names[1] = clk_names[VIDEO_EXT0]; |
| 631 | clk = clk_register_mux(NULL, clk_names[VIDEO2_IN], parent_names, 2, |
| 632 | 0, gbase + REG_CLKSELECT3, 9, 1, 0, &lock); |
| 633 | if (IS_ERR(clk)) |
| 634 | goto bg2_fail; |
| 635 | |
| 636 | parent_names[0] = clk_names[AVPLL_B1]; |
| 637 | parent_names[1] = clk_names[AVPLL_A5]; |
| 638 | clk = clk_register_mux(NULL, clk_names[VIDEO2_PLL], parent_names, 2, |
| 639 | 0, gbase + REG_CLKSELECT3, 10, 1, 0, &lock); |
| 640 | if (IS_ERR(clk)) |
| 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 | clks[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 | clks[CLKID_GETH0 + n] = clk_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 | clks[CLKID_TWD] = |
| 667 | clk_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(clks[n])) |
| 672 | continue; |
| 673 | |
| 674 | pr_err("%s: Unable to register leaf clock %d\n", |
| 675 | np->full_name, n); |
| 676 | goto bg2_fail; |
| 677 | } |
| 678 | |
| 679 | /* register clk-provider */ |
| 680 | clk_data.clks = clks; |
| 681 | clk_data.clk_num = MAX_CLKS; |
| 682 | of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); |
| 683 | |
| 684 | return; |
| 685 | |
| 686 | bg2_fail: |
| 687 | iounmap(gbase); |
| 688 | } |
Antoine Tenart | 26b3b6b | 2015-05-16 01:40:15 +0200 | [diff] [blame] | 689 | CLK_OF_DECLARE(berlin2_clk, "marvell,berlin2-clk", |
| 690 | berlin2_clock_setup); |