2 * Copyright (c) 2013 Samsung Electronics Co., Ltd.
3 * Copyright (c) 2013 Linaro Ltd.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * This file contains the utility functions to register the pll clocks.
12 #include <linux/errno.h>
13 #include <linux/hrtimer.h>
14 #include <linux/delay.h>
18 #define PLL_TIMEOUT_MS 10
20 struct samsung_clk_pll {
22 void __iomem *lock_reg;
23 void __iomem *con_reg;
24 enum samsung_pll_type type;
25 unsigned int rate_count;
26 const struct samsung_pll_rate_table *rate_table;
29 #define to_clk_pll(_hw) container_of(_hw, struct samsung_clk_pll, hw)
31 static const struct samsung_pll_rate_table *samsung_get_pll_settings(
32 struct samsung_clk_pll *pll, unsigned long rate)
34 const struct samsung_pll_rate_table *rate_table = pll->rate_table;
37 for (i = 0; i < pll->rate_count; i++) {
38 if (rate == rate_table[i].rate)
39 return &rate_table[i];
45 static long samsung_pll_round_rate(struct clk_hw *hw,
46 unsigned long drate, unsigned long *prate)
48 struct samsung_clk_pll *pll = to_clk_pll(hw);
49 const struct samsung_pll_rate_table *rate_table = pll->rate_table;
52 /* Assumming rate_table is in descending order */
53 for (i = 0; i < pll->rate_count; i++) {
54 if (drate >= rate_table[i].rate)
55 return rate_table[i].rate;
58 /* return minimum supported value */
59 return rate_table[i - 1].rate;
66 #define PLL2126_MDIV_MASK (0xff)
67 #define PLL2126_PDIV_MASK (0x3f)
68 #define PLL2126_SDIV_MASK (0x3)
69 #define PLL2126_MDIV_SHIFT (16)
70 #define PLL2126_PDIV_SHIFT (8)
71 #define PLL2126_SDIV_SHIFT (0)
73 static unsigned long samsung_pll2126_recalc_rate(struct clk_hw *hw,
74 unsigned long parent_rate)
76 struct samsung_clk_pll *pll = to_clk_pll(hw);
77 u32 pll_con, mdiv, pdiv, sdiv;
78 u64 fvco = parent_rate;
80 pll_con = __raw_readl(pll->con_reg);
81 mdiv = (pll_con >> PLL2126_MDIV_SHIFT) & PLL2126_MDIV_MASK;
82 pdiv = (pll_con >> PLL2126_PDIV_SHIFT) & PLL2126_PDIV_MASK;
83 sdiv = (pll_con >> PLL2126_SDIV_SHIFT) & PLL2126_SDIV_MASK;
86 do_div(fvco, (pdiv + 2) << sdiv);
88 return (unsigned long)fvco;
91 static const struct clk_ops samsung_pll2126_clk_ops = {
92 .recalc_rate = samsung_pll2126_recalc_rate,
99 #define PLL3000_MDIV_MASK (0xff)
100 #define PLL3000_PDIV_MASK (0x3)
101 #define PLL3000_SDIV_MASK (0x3)
102 #define PLL3000_MDIV_SHIFT (16)
103 #define PLL3000_PDIV_SHIFT (8)
104 #define PLL3000_SDIV_SHIFT (0)
106 static unsigned long samsung_pll3000_recalc_rate(struct clk_hw *hw,
107 unsigned long parent_rate)
109 struct samsung_clk_pll *pll = to_clk_pll(hw);
110 u32 pll_con, mdiv, pdiv, sdiv;
111 u64 fvco = parent_rate;
113 pll_con = __raw_readl(pll->con_reg);
114 mdiv = (pll_con >> PLL3000_MDIV_SHIFT) & PLL3000_MDIV_MASK;
115 pdiv = (pll_con >> PLL3000_PDIV_SHIFT) & PLL3000_PDIV_MASK;
116 sdiv = (pll_con >> PLL3000_SDIV_SHIFT) & PLL3000_SDIV_MASK;
118 fvco *= (2 * (mdiv + 8));
119 do_div(fvco, pdiv << sdiv);
121 return (unsigned long)fvco;
124 static const struct clk_ops samsung_pll3000_clk_ops = {
125 .recalc_rate = samsung_pll3000_recalc_rate,
131 /* Maximum lock time can be 270 * PDIV cycles */
132 #define PLL35XX_LOCK_FACTOR (270)
134 #define PLL35XX_MDIV_MASK (0x3FF)
135 #define PLL35XX_PDIV_MASK (0x3F)
136 #define PLL35XX_SDIV_MASK (0x7)
137 #define PLL35XX_LOCK_STAT_MASK (0x1)
138 #define PLL35XX_MDIV_SHIFT (16)
139 #define PLL35XX_PDIV_SHIFT (8)
140 #define PLL35XX_SDIV_SHIFT (0)
141 #define PLL35XX_LOCK_STAT_SHIFT (29)
143 static unsigned long samsung_pll35xx_recalc_rate(struct clk_hw *hw,
144 unsigned long parent_rate)
146 struct samsung_clk_pll *pll = to_clk_pll(hw);
147 u32 mdiv, pdiv, sdiv, pll_con;
148 u64 fvco = parent_rate;
150 pll_con = __raw_readl(pll->con_reg);
151 mdiv = (pll_con >> PLL35XX_MDIV_SHIFT) & PLL35XX_MDIV_MASK;
152 pdiv = (pll_con >> PLL35XX_PDIV_SHIFT) & PLL35XX_PDIV_MASK;
153 sdiv = (pll_con >> PLL35XX_SDIV_SHIFT) & PLL35XX_SDIV_MASK;
156 do_div(fvco, (pdiv << sdiv));
158 return (unsigned long)fvco;
161 static inline bool samsung_pll35xx_mp_change(
162 const struct samsung_pll_rate_table *rate, u32 pll_con)
164 u32 old_mdiv, old_pdiv;
166 old_mdiv = (pll_con >> PLL35XX_MDIV_SHIFT) & PLL35XX_MDIV_MASK;
167 old_pdiv = (pll_con >> PLL35XX_PDIV_SHIFT) & PLL35XX_PDIV_MASK;
169 return (rate->mdiv != old_mdiv || rate->pdiv != old_pdiv);
172 static int samsung_pll35xx_set_rate(struct clk_hw *hw, unsigned long drate,
175 struct samsung_clk_pll *pll = to_clk_pll(hw);
176 const struct samsung_pll_rate_table *rate;
179 /* Get required rate settings from table */
180 rate = samsung_get_pll_settings(pll, drate);
182 pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__,
183 drate, __clk_get_name(hw->clk));
187 tmp = __raw_readl(pll->con_reg);
189 if (!(samsung_pll35xx_mp_change(rate, tmp))) {
190 /* If only s change, change just s value only*/
191 tmp &= ~(PLL35XX_SDIV_MASK << PLL35XX_SDIV_SHIFT);
192 tmp |= rate->sdiv << PLL35XX_SDIV_SHIFT;
193 __raw_writel(tmp, pll->con_reg);
198 /* Set PLL lock time. */
199 __raw_writel(rate->pdiv * PLL35XX_LOCK_FACTOR,
202 /* Change PLL PMS values */
203 tmp &= ~((PLL35XX_MDIV_MASK << PLL35XX_MDIV_SHIFT) |
204 (PLL35XX_PDIV_MASK << PLL35XX_PDIV_SHIFT) |
205 (PLL35XX_SDIV_MASK << PLL35XX_SDIV_SHIFT));
206 tmp |= (rate->mdiv << PLL35XX_MDIV_SHIFT) |
207 (rate->pdiv << PLL35XX_PDIV_SHIFT) |
208 (rate->sdiv << PLL35XX_SDIV_SHIFT);
209 __raw_writel(tmp, pll->con_reg);
214 tmp = __raw_readl(pll->con_reg);
215 } while (!(tmp & (PLL35XX_LOCK_STAT_MASK
216 << PLL35XX_LOCK_STAT_SHIFT)));
220 static const struct clk_ops samsung_pll35xx_clk_ops = {
221 .recalc_rate = samsung_pll35xx_recalc_rate,
222 .round_rate = samsung_pll_round_rate,
223 .set_rate = samsung_pll35xx_set_rate,
226 static const struct clk_ops samsung_pll35xx_clk_min_ops = {
227 .recalc_rate = samsung_pll35xx_recalc_rate,
233 /* Maximum lock time can be 3000 * PDIV cycles */
234 #define PLL36XX_LOCK_FACTOR (3000)
236 #define PLL36XX_KDIV_MASK (0xFFFF)
237 #define PLL36XX_MDIV_MASK (0x1FF)
238 #define PLL36XX_PDIV_MASK (0x3F)
239 #define PLL36XX_SDIV_MASK (0x7)
240 #define PLL36XX_MDIV_SHIFT (16)
241 #define PLL36XX_PDIV_SHIFT (8)
242 #define PLL36XX_SDIV_SHIFT (0)
243 #define PLL36XX_KDIV_SHIFT (0)
244 #define PLL36XX_LOCK_STAT_SHIFT (29)
246 static unsigned long samsung_pll36xx_recalc_rate(struct clk_hw *hw,
247 unsigned long parent_rate)
249 struct samsung_clk_pll *pll = to_clk_pll(hw);
250 u32 mdiv, pdiv, sdiv, pll_con0, pll_con1;
252 u64 fvco = parent_rate;
254 pll_con0 = __raw_readl(pll->con_reg);
255 pll_con1 = __raw_readl(pll->con_reg + 4);
256 mdiv = (pll_con0 >> PLL36XX_MDIV_SHIFT) & PLL36XX_MDIV_MASK;
257 pdiv = (pll_con0 >> PLL36XX_PDIV_SHIFT) & PLL36XX_PDIV_MASK;
258 sdiv = (pll_con0 >> PLL36XX_SDIV_SHIFT) & PLL36XX_SDIV_MASK;
259 kdiv = (s16)(pll_con1 & PLL36XX_KDIV_MASK);
261 fvco *= (mdiv << 16) + kdiv;
262 do_div(fvco, (pdiv << sdiv));
265 return (unsigned long)fvco;
268 static inline bool samsung_pll36xx_mpk_change(
269 const struct samsung_pll_rate_table *rate, u32 pll_con0, u32 pll_con1)
271 u32 old_mdiv, old_pdiv, old_kdiv;
273 old_mdiv = (pll_con0 >> PLL36XX_MDIV_SHIFT) & PLL36XX_MDIV_MASK;
274 old_pdiv = (pll_con0 >> PLL36XX_PDIV_SHIFT) & PLL36XX_PDIV_MASK;
275 old_kdiv = (pll_con1 >> PLL36XX_KDIV_SHIFT) & PLL36XX_KDIV_MASK;
277 return (rate->mdiv != old_mdiv || rate->pdiv != old_pdiv ||
278 rate->kdiv != old_kdiv);
281 static int samsung_pll36xx_set_rate(struct clk_hw *hw, unsigned long drate,
282 unsigned long parent_rate)
284 struct samsung_clk_pll *pll = to_clk_pll(hw);
285 u32 tmp, pll_con0, pll_con1;
286 const struct samsung_pll_rate_table *rate;
288 rate = samsung_get_pll_settings(pll, drate);
290 pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__,
291 drate, __clk_get_name(hw->clk));
295 pll_con0 = __raw_readl(pll->con_reg);
296 pll_con1 = __raw_readl(pll->con_reg + 4);
298 if (!(samsung_pll36xx_mpk_change(rate, pll_con0, pll_con1))) {
299 /* If only s change, change just s value only*/
300 pll_con0 &= ~(PLL36XX_SDIV_MASK << PLL36XX_SDIV_SHIFT);
301 pll_con0 |= (rate->sdiv << PLL36XX_SDIV_SHIFT);
302 __raw_writel(pll_con0, pll->con_reg);
307 /* Set PLL lock time. */
308 __raw_writel(rate->pdiv * PLL36XX_LOCK_FACTOR, pll->lock_reg);
310 /* Change PLL PMS values */
311 pll_con0 &= ~((PLL36XX_MDIV_MASK << PLL36XX_MDIV_SHIFT) |
312 (PLL36XX_PDIV_MASK << PLL36XX_PDIV_SHIFT) |
313 (PLL36XX_SDIV_MASK << PLL36XX_SDIV_SHIFT));
314 pll_con0 |= (rate->mdiv << PLL36XX_MDIV_SHIFT) |
315 (rate->pdiv << PLL36XX_PDIV_SHIFT) |
316 (rate->sdiv << PLL36XX_SDIV_SHIFT);
317 __raw_writel(pll_con0, pll->con_reg);
319 pll_con1 &= ~(PLL36XX_KDIV_MASK << PLL36XX_KDIV_SHIFT);
320 pll_con1 |= rate->kdiv << PLL36XX_KDIV_SHIFT;
321 __raw_writel(pll_con1, pll->con_reg + 4);
326 tmp = __raw_readl(pll->con_reg);
327 } while (!(tmp & (1 << PLL36XX_LOCK_STAT_SHIFT)));
332 static const struct clk_ops samsung_pll36xx_clk_ops = {
333 .recalc_rate = samsung_pll36xx_recalc_rate,
334 .set_rate = samsung_pll36xx_set_rate,
335 .round_rate = samsung_pll_round_rate,
338 static const struct clk_ops samsung_pll36xx_clk_min_ops = {
339 .recalc_rate = samsung_pll36xx_recalc_rate,
345 #define PLL4502_LOCK_FACTOR 400
346 #define PLL4508_LOCK_FACTOR 240
348 #define PLL45XX_MDIV_MASK (0x3FF)
349 #define PLL45XX_PDIV_MASK (0x3F)
350 #define PLL45XX_SDIV_MASK (0x7)
351 #define PLL45XX_AFC_MASK (0x1F)
352 #define PLL45XX_MDIV_SHIFT (16)
353 #define PLL45XX_PDIV_SHIFT (8)
354 #define PLL45XX_SDIV_SHIFT (0)
355 #define PLL45XX_AFC_SHIFT (0)
357 #define PLL45XX_ENABLE BIT(31)
358 #define PLL45XX_LOCKED BIT(29)
360 static unsigned long samsung_pll45xx_recalc_rate(struct clk_hw *hw,
361 unsigned long parent_rate)
363 struct samsung_clk_pll *pll = to_clk_pll(hw);
364 u32 mdiv, pdiv, sdiv, pll_con;
365 u64 fvco = parent_rate;
367 pll_con = __raw_readl(pll->con_reg);
368 mdiv = (pll_con >> PLL45XX_MDIV_SHIFT) & PLL45XX_MDIV_MASK;
369 pdiv = (pll_con >> PLL45XX_PDIV_SHIFT) & PLL45XX_PDIV_MASK;
370 sdiv = (pll_con >> PLL45XX_SDIV_SHIFT) & PLL45XX_SDIV_MASK;
372 if (pll->type == pll_4508)
376 do_div(fvco, (pdiv << sdiv));
378 return (unsigned long)fvco;
381 static bool samsung_pll45xx_mp_change(u32 pll_con0, u32 pll_con1,
382 const struct samsung_pll_rate_table *rate)
384 u32 old_mdiv, old_pdiv, old_afc;
386 old_mdiv = (pll_con0 >> PLL45XX_MDIV_SHIFT) & PLL45XX_MDIV_MASK;
387 old_pdiv = (pll_con0 >> PLL45XX_PDIV_SHIFT) & PLL45XX_PDIV_MASK;
388 old_afc = (pll_con1 >> PLL45XX_AFC_SHIFT) & PLL45XX_AFC_MASK;
390 return (old_mdiv != rate->mdiv || old_pdiv != rate->pdiv
391 || old_afc != rate->afc);
394 static int samsung_pll45xx_set_rate(struct clk_hw *hw, unsigned long drate,
397 struct samsung_clk_pll *pll = to_clk_pll(hw);
398 const struct samsung_pll_rate_table *rate;
402 /* Get required rate settings from table */
403 rate = samsung_get_pll_settings(pll, drate);
405 pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__,
406 drate, __clk_get_name(hw->clk));
410 con0 = __raw_readl(pll->con_reg);
411 con1 = __raw_readl(pll->con_reg + 0x4);
413 if (!(samsung_pll45xx_mp_change(con0, con1, rate))) {
414 /* If only s change, change just s value only*/
415 con0 &= ~(PLL45XX_SDIV_MASK << PLL45XX_SDIV_SHIFT);
416 con0 |= rate->sdiv << PLL45XX_SDIV_SHIFT;
417 __raw_writel(con0, pll->con_reg);
422 /* Set PLL PMS values. */
423 con0 &= ~((PLL45XX_MDIV_MASK << PLL45XX_MDIV_SHIFT) |
424 (PLL45XX_PDIV_MASK << PLL45XX_PDIV_SHIFT) |
425 (PLL45XX_SDIV_MASK << PLL45XX_SDIV_SHIFT));
426 con0 |= (rate->mdiv << PLL45XX_MDIV_SHIFT) |
427 (rate->pdiv << PLL45XX_PDIV_SHIFT) |
428 (rate->sdiv << PLL45XX_SDIV_SHIFT);
430 /* Set PLL AFC value. */
431 con1 = __raw_readl(pll->con_reg + 0x4);
432 con1 &= ~(PLL45XX_AFC_MASK << PLL45XX_AFC_SHIFT);
433 con1 |= (rate->afc << PLL45XX_AFC_SHIFT);
435 /* Set PLL lock time. */
438 __raw_writel(rate->pdiv * PLL4502_LOCK_FACTOR, pll->lock_reg);
441 __raw_writel(rate->pdiv * PLL4508_LOCK_FACTOR, pll->lock_reg);
447 /* Set new configuration. */
448 __raw_writel(con1, pll->con_reg + 0x4);
449 __raw_writel(con0, pll->con_reg);
451 /* Wait for locking. */
453 while (!(__raw_readl(pll->con_reg) & PLL45XX_LOCKED)) {
454 ktime_t delta = ktime_sub(ktime_get(), start);
456 if (ktime_to_ms(delta) > PLL_TIMEOUT_MS) {
457 pr_err("%s: could not lock PLL %s\n",
458 __func__, __clk_get_name(hw->clk));
468 static const struct clk_ops samsung_pll45xx_clk_ops = {
469 .recalc_rate = samsung_pll45xx_recalc_rate,
470 .round_rate = samsung_pll_round_rate,
471 .set_rate = samsung_pll45xx_set_rate,
474 static const struct clk_ops samsung_pll45xx_clk_min_ops = {
475 .recalc_rate = samsung_pll45xx_recalc_rate,
481 #define PLL46XX_LOCK_FACTOR 3000
483 #define PLL46XX_VSEL_MASK (1)
484 #define PLL46XX_MDIV_MASK (0x1FF)
485 #define PLL46XX_PDIV_MASK (0x3F)
486 #define PLL46XX_SDIV_MASK (0x7)
487 #define PLL46XX_VSEL_SHIFT (27)
488 #define PLL46XX_MDIV_SHIFT (16)
489 #define PLL46XX_PDIV_SHIFT (8)
490 #define PLL46XX_SDIV_SHIFT (0)
492 #define PLL46XX_KDIV_MASK (0xFFFF)
493 #define PLL4650C_KDIV_MASK (0xFFF)
494 #define PLL46XX_KDIV_SHIFT (0)
495 #define PLL46XX_MFR_MASK (0x3F)
496 #define PLL46XX_MRR_MASK (0x1F)
497 #define PLL46XX_KDIV_SHIFT (0)
498 #define PLL46XX_MFR_SHIFT (16)
499 #define PLL46XX_MRR_SHIFT (24)
501 #define PLL46XX_ENABLE BIT(31)
502 #define PLL46XX_LOCKED BIT(29)
503 #define PLL46XX_VSEL BIT(27)
505 static unsigned long samsung_pll46xx_recalc_rate(struct clk_hw *hw,
506 unsigned long parent_rate)
508 struct samsung_clk_pll *pll = to_clk_pll(hw);
509 u32 mdiv, pdiv, sdiv, kdiv, pll_con0, pll_con1, shift;
510 u64 fvco = parent_rate;
512 pll_con0 = __raw_readl(pll->con_reg);
513 pll_con1 = __raw_readl(pll->con_reg + 4);
514 mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & PLL46XX_MDIV_MASK;
515 pdiv = (pll_con0 >> PLL46XX_PDIV_SHIFT) & PLL46XX_PDIV_MASK;
516 sdiv = (pll_con0 >> PLL46XX_SDIV_SHIFT) & PLL46XX_SDIV_MASK;
517 kdiv = pll->type == pll_4650c ? pll_con1 & PLL4650C_KDIV_MASK :
518 pll_con1 & PLL46XX_KDIV_MASK;
520 shift = pll->type == pll_4600 ? 16 : 10;
521 fvco *= (mdiv << shift) + kdiv;
522 do_div(fvco, (pdiv << sdiv));
525 return (unsigned long)fvco;
528 static bool samsung_pll46xx_mpk_change(u32 pll_con0, u32 pll_con1,
529 const struct samsung_pll_rate_table *rate)
531 u32 old_mdiv, old_pdiv, old_kdiv;
533 old_mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & PLL46XX_MDIV_MASK;
534 old_pdiv = (pll_con0 >> PLL46XX_PDIV_SHIFT) & PLL46XX_PDIV_MASK;
535 old_kdiv = (pll_con1 >> PLL46XX_KDIV_SHIFT) & PLL46XX_KDIV_MASK;
537 return (old_mdiv != rate->mdiv || old_pdiv != rate->pdiv
538 || old_kdiv != rate->kdiv);
541 static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate,
544 struct samsung_clk_pll *pll = to_clk_pll(hw);
545 const struct samsung_pll_rate_table *rate;
546 u32 con0, con1, lock;
549 /* Get required rate settings from table */
550 rate = samsung_get_pll_settings(pll, drate);
552 pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__,
553 drate, __clk_get_name(hw->clk));
557 con0 = __raw_readl(pll->con_reg);
558 con1 = __raw_readl(pll->con_reg + 0x4);
560 if (!(samsung_pll46xx_mpk_change(con0, con1, rate))) {
561 /* If only s change, change just s value only*/
562 con0 &= ~(PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT);
563 con0 |= rate->sdiv << PLL46XX_SDIV_SHIFT;
564 __raw_writel(con0, pll->con_reg);
569 /* Set PLL lock time. */
570 lock = rate->pdiv * PLL46XX_LOCK_FACTOR;
572 /* Maximum lock time bitfield is 16-bit. */
575 /* Set PLL PMS and VSEL values. */
576 con0 &= ~((PLL46XX_MDIV_MASK << PLL46XX_MDIV_SHIFT) |
577 (PLL46XX_PDIV_MASK << PLL46XX_PDIV_SHIFT) |
578 (PLL46XX_SDIV_MASK << PLL46XX_SDIV_SHIFT) |
579 (PLL46XX_VSEL_MASK << PLL46XX_VSEL_SHIFT));
580 con0 |= (rate->mdiv << PLL46XX_MDIV_SHIFT) |
581 (rate->pdiv << PLL46XX_PDIV_SHIFT) |
582 (rate->sdiv << PLL46XX_SDIV_SHIFT) |
583 (rate->vsel << PLL46XX_VSEL_SHIFT);
585 /* Set PLL K, MFR and MRR values. */
586 con1 = __raw_readl(pll->con_reg + 0x4);
587 con1 &= ~((PLL46XX_KDIV_MASK << PLL46XX_KDIV_SHIFT) |
588 (PLL46XX_MFR_MASK << PLL46XX_MFR_SHIFT) |
589 (PLL46XX_MRR_MASK << PLL46XX_MRR_SHIFT));
590 con1 |= (rate->kdiv << PLL46XX_KDIV_SHIFT) |
591 (rate->mfr << PLL46XX_MFR_SHIFT) |
592 (rate->mrr << PLL46XX_MRR_SHIFT);
594 /* Write configuration to PLL */
595 __raw_writel(lock, pll->lock_reg);
596 __raw_writel(con0, pll->con_reg);
597 __raw_writel(con1, pll->con_reg + 0x4);
599 /* Wait for locking. */
601 while (!(__raw_readl(pll->con_reg) & PLL46XX_LOCKED)) {
602 ktime_t delta = ktime_sub(ktime_get(), start);
604 if (ktime_to_ms(delta) > PLL_TIMEOUT_MS) {
605 pr_err("%s: could not lock PLL %s\n",
606 __func__, __clk_get_name(hw->clk));
616 static const struct clk_ops samsung_pll46xx_clk_ops = {
617 .recalc_rate = samsung_pll46xx_recalc_rate,
618 .round_rate = samsung_pll_round_rate,
619 .set_rate = samsung_pll46xx_set_rate,
622 static const struct clk_ops samsung_pll46xx_clk_min_ops = {
623 .recalc_rate = samsung_pll46xx_recalc_rate,
630 #define PLL6552_MDIV_MASK 0x3ff
631 #define PLL6552_PDIV_MASK 0x3f
632 #define PLL6552_SDIV_MASK 0x7
633 #define PLL6552_MDIV_SHIFT 16
634 #define PLL6552_MDIV_SHIFT_2416 14
635 #define PLL6552_PDIV_SHIFT 8
636 #define PLL6552_PDIV_SHIFT_2416 5
637 #define PLL6552_SDIV_SHIFT 0
639 static unsigned long samsung_pll6552_recalc_rate(struct clk_hw *hw,
640 unsigned long parent_rate)
642 struct samsung_clk_pll *pll = to_clk_pll(hw);
643 u32 mdiv, pdiv, sdiv, pll_con;
644 u64 fvco = parent_rate;
646 pll_con = __raw_readl(pll->con_reg);
647 if (pll->type == pll_6552_s3c2416) {
648 mdiv = (pll_con >> PLL6552_MDIV_SHIFT_2416) & PLL6552_MDIV_MASK;
649 pdiv = (pll_con >> PLL6552_PDIV_SHIFT_2416) & PLL6552_PDIV_MASK;
651 mdiv = (pll_con >> PLL6552_MDIV_SHIFT) & PLL6552_MDIV_MASK;
652 pdiv = (pll_con >> PLL6552_PDIV_SHIFT) & PLL6552_PDIV_MASK;
654 sdiv = (pll_con >> PLL6552_SDIV_SHIFT) & PLL6552_SDIV_MASK;
657 do_div(fvco, (pdiv << sdiv));
659 return (unsigned long)fvco;
662 static const struct clk_ops samsung_pll6552_clk_ops = {
663 .recalc_rate = samsung_pll6552_recalc_rate,
670 #define PLL6553_MDIV_MASK 0xff
671 #define PLL6553_PDIV_MASK 0x3f
672 #define PLL6553_SDIV_MASK 0x7
673 #define PLL6553_KDIV_MASK 0xffff
674 #define PLL6553_MDIV_SHIFT 16
675 #define PLL6553_PDIV_SHIFT 8
676 #define PLL6553_SDIV_SHIFT 0
677 #define PLL6553_KDIV_SHIFT 0
679 static unsigned long samsung_pll6553_recalc_rate(struct clk_hw *hw,
680 unsigned long parent_rate)
682 struct samsung_clk_pll *pll = to_clk_pll(hw);
683 u32 mdiv, pdiv, sdiv, kdiv, pll_con0, pll_con1;
684 u64 fvco = parent_rate;
686 pll_con0 = __raw_readl(pll->con_reg);
687 pll_con1 = __raw_readl(pll->con_reg + 0x4);
688 mdiv = (pll_con0 >> PLL6553_MDIV_SHIFT) & PLL6553_MDIV_MASK;
689 pdiv = (pll_con0 >> PLL6553_PDIV_SHIFT) & PLL6553_PDIV_MASK;
690 sdiv = (pll_con0 >> PLL6553_SDIV_SHIFT) & PLL6553_SDIV_MASK;
691 kdiv = (pll_con1 >> PLL6553_KDIV_SHIFT) & PLL6553_KDIV_MASK;
693 fvco *= (mdiv << 16) + kdiv;
694 do_div(fvco, (pdiv << sdiv));
697 return (unsigned long)fvco;
700 static const struct clk_ops samsung_pll6553_clk_ops = {
701 .recalc_rate = samsung_pll6553_recalc_rate,
705 * PLL Clock Type of S3C24XX before S3C2443
708 #define PLLS3C2410_MDIV_MASK (0xff)
709 #define PLLS3C2410_PDIV_MASK (0x1f)
710 #define PLLS3C2410_SDIV_MASK (0x3)
711 #define PLLS3C2410_MDIV_SHIFT (12)
712 #define PLLS3C2410_PDIV_SHIFT (4)
713 #define PLLS3C2410_SDIV_SHIFT (0)
715 #define PLLS3C2410_ENABLE_REG_OFFSET 0x10
717 static unsigned long samsung_s3c2410_pll_recalc_rate(struct clk_hw *hw,
718 unsigned long parent_rate)
720 struct samsung_clk_pll *pll = to_clk_pll(hw);
721 u32 pll_con, mdiv, pdiv, sdiv;
722 u64 fvco = parent_rate;
724 pll_con = __raw_readl(pll->con_reg);
725 mdiv = (pll_con >> PLLS3C2410_MDIV_SHIFT) & PLLS3C2410_MDIV_MASK;
726 pdiv = (pll_con >> PLLS3C2410_PDIV_SHIFT) & PLLS3C2410_PDIV_MASK;
727 sdiv = (pll_con >> PLLS3C2410_SDIV_SHIFT) & PLLS3C2410_SDIV_MASK;
730 do_div(fvco, (pdiv + 2) << sdiv);
732 return (unsigned int)fvco;
735 static unsigned long samsung_s3c2440_mpll_recalc_rate(struct clk_hw *hw,
736 unsigned long parent_rate)
738 struct samsung_clk_pll *pll = to_clk_pll(hw);
739 u32 pll_con, mdiv, pdiv, sdiv;
740 u64 fvco = parent_rate;
742 pll_con = __raw_readl(pll->con_reg);
743 mdiv = (pll_con >> PLLS3C2410_MDIV_SHIFT) & PLLS3C2410_MDIV_MASK;
744 pdiv = (pll_con >> PLLS3C2410_PDIV_SHIFT) & PLLS3C2410_PDIV_MASK;
745 sdiv = (pll_con >> PLLS3C2410_SDIV_SHIFT) & PLLS3C2410_SDIV_MASK;
747 fvco *= (2 * (mdiv + 8));
748 do_div(fvco, (pdiv + 2) << sdiv);
750 return (unsigned int)fvco;
753 static int samsung_s3c2410_pll_set_rate(struct clk_hw *hw, unsigned long drate,
756 struct samsung_clk_pll *pll = to_clk_pll(hw);
757 const struct samsung_pll_rate_table *rate;
760 /* Get required rate settings from table */
761 rate = samsung_get_pll_settings(pll, drate);
763 pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__,
764 drate, __clk_get_name(hw->clk));
768 tmp = __raw_readl(pll->con_reg);
770 /* Change PLL PMS values */
771 tmp &= ~((PLLS3C2410_MDIV_MASK << PLLS3C2410_MDIV_SHIFT) |
772 (PLLS3C2410_PDIV_MASK << PLLS3C2410_PDIV_SHIFT) |
773 (PLLS3C2410_SDIV_MASK << PLLS3C2410_SDIV_SHIFT));
774 tmp |= (rate->mdiv << PLLS3C2410_MDIV_SHIFT) |
775 (rate->pdiv << PLLS3C2410_PDIV_SHIFT) |
776 (rate->sdiv << PLLS3C2410_SDIV_SHIFT);
777 __raw_writel(tmp, pll->con_reg);
779 /* Time to settle according to the manual */
785 static int samsung_s3c2410_pll_enable(struct clk_hw *hw, int bit, bool enable)
787 struct samsung_clk_pll *pll = to_clk_pll(hw);
788 u32 pll_en = __raw_readl(pll->lock_reg + PLLS3C2410_ENABLE_REG_OFFSET);
789 u32 pll_en_orig = pll_en;
796 __raw_writel(pll_en, pll->lock_reg + PLLS3C2410_ENABLE_REG_OFFSET);
798 /* if we started the UPLL, then allow to settle */
799 if (enable && (pll_en_orig & BIT(bit)))
805 static int samsung_s3c2410_mpll_enable(struct clk_hw *hw)
807 return samsung_s3c2410_pll_enable(hw, 5, true);
810 static void samsung_s3c2410_mpll_disable(struct clk_hw *hw)
812 samsung_s3c2410_pll_enable(hw, 5, false);
815 static int samsung_s3c2410_upll_enable(struct clk_hw *hw)
817 return samsung_s3c2410_pll_enable(hw, 7, true);
820 static void samsung_s3c2410_upll_disable(struct clk_hw *hw)
822 samsung_s3c2410_pll_enable(hw, 7, false);
825 static const struct clk_ops samsung_s3c2410_mpll_clk_min_ops = {
826 .recalc_rate = samsung_s3c2410_pll_recalc_rate,
827 .enable = samsung_s3c2410_mpll_enable,
828 .disable = samsung_s3c2410_mpll_disable,
831 static const struct clk_ops samsung_s3c2410_upll_clk_min_ops = {
832 .recalc_rate = samsung_s3c2410_pll_recalc_rate,
833 .enable = samsung_s3c2410_upll_enable,
834 .disable = samsung_s3c2410_upll_disable,
837 static const struct clk_ops samsung_s3c2440_mpll_clk_min_ops = {
838 .recalc_rate = samsung_s3c2440_mpll_recalc_rate,
839 .enable = samsung_s3c2410_mpll_enable,
840 .disable = samsung_s3c2410_mpll_disable,
843 static const struct clk_ops samsung_s3c2410_mpll_clk_ops = {
844 .recalc_rate = samsung_s3c2410_pll_recalc_rate,
845 .enable = samsung_s3c2410_mpll_enable,
846 .disable = samsung_s3c2410_mpll_disable,
847 .round_rate = samsung_pll_round_rate,
848 .set_rate = samsung_s3c2410_pll_set_rate,
851 static const struct clk_ops samsung_s3c2410_upll_clk_ops = {
852 .recalc_rate = samsung_s3c2410_pll_recalc_rate,
853 .enable = samsung_s3c2410_upll_enable,
854 .disable = samsung_s3c2410_upll_disable,
855 .round_rate = samsung_pll_round_rate,
856 .set_rate = samsung_s3c2410_pll_set_rate,
859 static const struct clk_ops samsung_s3c2440_mpll_clk_ops = {
860 .recalc_rate = samsung_s3c2440_mpll_recalc_rate,
861 .enable = samsung_s3c2410_mpll_enable,
862 .disable = samsung_s3c2410_mpll_disable,
863 .round_rate = samsung_pll_round_rate,
864 .set_rate = samsung_s3c2410_pll_set_rate,
868 * PLL2550x Clock Type
871 #define PLL2550X_R_MASK (0x1)
872 #define PLL2550X_P_MASK (0x3F)
873 #define PLL2550X_M_MASK (0x3FF)
874 #define PLL2550X_S_MASK (0x7)
875 #define PLL2550X_R_SHIFT (20)
876 #define PLL2550X_P_SHIFT (14)
877 #define PLL2550X_M_SHIFT (4)
878 #define PLL2550X_S_SHIFT (0)
880 struct samsung_clk_pll2550x {
882 const void __iomem *reg_base;
883 unsigned long offset;
886 #define to_clk_pll2550x(_hw) container_of(_hw, struct samsung_clk_pll2550x, hw)
888 static unsigned long samsung_pll2550x_recalc_rate(struct clk_hw *hw,
889 unsigned long parent_rate)
891 struct samsung_clk_pll2550x *pll = to_clk_pll2550x(hw);
892 u32 r, p, m, s, pll_stat;
893 u64 fvco = parent_rate;
895 pll_stat = __raw_readl(pll->reg_base + pll->offset * 3);
896 r = (pll_stat >> PLL2550X_R_SHIFT) & PLL2550X_R_MASK;
899 p = (pll_stat >> PLL2550X_P_SHIFT) & PLL2550X_P_MASK;
900 m = (pll_stat >> PLL2550X_M_SHIFT) & PLL2550X_M_MASK;
901 s = (pll_stat >> PLL2550X_S_SHIFT) & PLL2550X_S_MASK;
904 do_div(fvco, (p << s));
906 return (unsigned long)fvco;
909 static const struct clk_ops samsung_pll2550x_clk_ops = {
910 .recalc_rate = samsung_pll2550x_recalc_rate,
913 struct clk * __init samsung_clk_register_pll2550x(const char *name,
914 const char *pname, const void __iomem *reg_base,
915 const unsigned long offset)
917 struct samsung_clk_pll2550x *pll;
919 struct clk_init_data init;
921 pll = kzalloc(sizeof(*pll), GFP_KERNEL);
923 pr_err("%s: could not allocate pll clk %s\n", __func__, name);
928 init.ops = &samsung_pll2550x_clk_ops;
929 init.flags = CLK_GET_RATE_NOCACHE;
930 init.parent_names = &pname;
931 init.num_parents = 1;
933 pll->hw.init = &init;
934 pll->reg_base = reg_base;
935 pll->offset = offset;
937 clk = clk_register(NULL, &pll->hw);
939 pr_err("%s: failed to register pll clock %s\n", __func__,
944 if (clk_register_clkdev(clk, name, NULL))
945 pr_err("%s: failed to register lookup for %s", __func__, name);
951 * PLL2550xx Clock Type
954 /* Maximum lock time can be 270 * PDIV cycles */
955 #define PLL2550XX_LOCK_FACTOR 270
957 #define PLL2550XX_M_MASK 0x3FF
958 #define PLL2550XX_P_MASK 0x3F
959 #define PLL2550XX_S_MASK 0x7
960 #define PLL2550XX_LOCK_STAT_MASK 0x1
961 #define PLL2550XX_M_SHIFT 9
962 #define PLL2550XX_P_SHIFT 3
963 #define PLL2550XX_S_SHIFT 0
964 #define PLL2550XX_LOCK_STAT_SHIFT 21
966 static unsigned long samsung_pll2550xx_recalc_rate(struct clk_hw *hw,
967 unsigned long parent_rate)
969 struct samsung_clk_pll *pll = to_clk_pll(hw);
970 u32 mdiv, pdiv, sdiv, pll_con;
971 u64 fvco = parent_rate;
973 pll_con = __raw_readl(pll->con_reg);
974 mdiv = (pll_con >> PLL2550XX_M_SHIFT) & PLL2550XX_M_MASK;
975 pdiv = (pll_con >> PLL2550XX_P_SHIFT) & PLL2550XX_P_MASK;
976 sdiv = (pll_con >> PLL2550XX_S_SHIFT) & PLL2550XX_S_MASK;
979 do_div(fvco, (pdiv << sdiv));
981 return (unsigned long)fvco;
984 static inline bool samsung_pll2550xx_mp_change(u32 mdiv, u32 pdiv, u32 pll_con)
986 u32 old_mdiv, old_pdiv;
988 old_mdiv = (pll_con >> PLL2550XX_M_SHIFT) & PLL2550XX_M_MASK;
989 old_pdiv = (pll_con >> PLL2550XX_P_SHIFT) & PLL2550XX_P_MASK;
991 return mdiv != old_mdiv || pdiv != old_pdiv;
994 static int samsung_pll2550xx_set_rate(struct clk_hw *hw, unsigned long drate,
997 struct samsung_clk_pll *pll = to_clk_pll(hw);
998 const struct samsung_pll_rate_table *rate;
1001 /* Get required rate settings from table */
1002 rate = samsung_get_pll_settings(pll, drate);
1004 pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__,
1005 drate, __clk_get_name(hw->clk));
1009 tmp = __raw_readl(pll->con_reg);
1011 if (!(samsung_pll2550xx_mp_change(rate->mdiv, rate->pdiv, tmp))) {
1012 /* If only s change, change just s value only*/
1013 tmp &= ~(PLL2550XX_S_MASK << PLL2550XX_S_SHIFT);
1014 tmp |= rate->sdiv << PLL2550XX_S_SHIFT;
1015 __raw_writel(tmp, pll->con_reg);
1020 /* Set PLL lock time. */
1021 __raw_writel(rate->pdiv * PLL2550XX_LOCK_FACTOR, pll->lock_reg);
1023 /* Change PLL PMS values */
1024 tmp &= ~((PLL2550XX_M_MASK << PLL2550XX_M_SHIFT) |
1025 (PLL2550XX_P_MASK << PLL2550XX_P_SHIFT) |
1026 (PLL2550XX_S_MASK << PLL2550XX_S_SHIFT));
1027 tmp |= (rate->mdiv << PLL2550XX_M_SHIFT) |
1028 (rate->pdiv << PLL2550XX_P_SHIFT) |
1029 (rate->sdiv << PLL2550XX_S_SHIFT);
1030 __raw_writel(tmp, pll->con_reg);
1032 /* wait_lock_time */
1035 tmp = __raw_readl(pll->con_reg);
1036 } while (!(tmp & (PLL2550XX_LOCK_STAT_MASK
1037 << PLL2550XX_LOCK_STAT_SHIFT)));
1042 static const struct clk_ops samsung_pll2550xx_clk_ops = {
1043 .recalc_rate = samsung_pll2550xx_recalc_rate,
1044 .round_rate = samsung_pll_round_rate,
1045 .set_rate = samsung_pll2550xx_set_rate,
1048 static const struct clk_ops samsung_pll2550xx_clk_min_ops = {
1049 .recalc_rate = samsung_pll2550xx_recalc_rate,
1053 * PLL2650XX Clock Type
1056 /* Maximum lock time can be 3000 * PDIV cycles */
1057 #define PLL2650XX_LOCK_FACTOR 3000
1059 #define PLL2650XX_MDIV_SHIFT 9
1060 #define PLL2650XX_PDIV_SHIFT 3
1061 #define PLL2650XX_SDIV_SHIFT 0
1062 #define PLL2650XX_KDIV_SHIFT 0
1063 #define PLL2650XX_MDIV_MASK 0x1ff
1064 #define PLL2650XX_PDIV_MASK 0x3f
1065 #define PLL2650XX_SDIV_MASK 0x7
1066 #define PLL2650XX_KDIV_MASK 0xffff
1067 #define PLL2650XX_PLL_ENABLE_SHIFT 23
1068 #define PLL2650XX_PLL_LOCKTIME_SHIFT 21
1069 #define PLL2650XX_PLL_FOUTMASK_SHIFT 31
1071 static unsigned long samsung_pll2650xx_recalc_rate(struct clk_hw *hw,
1072 unsigned long parent_rate)
1074 struct samsung_clk_pll *pll = to_clk_pll(hw);
1075 u32 mdiv, pdiv, sdiv, pll_con0, pll_con2;
1077 u64 fvco = parent_rate;
1079 pll_con0 = __raw_readl(pll->con_reg);
1080 pll_con2 = __raw_readl(pll->con_reg + 8);
1081 mdiv = (pll_con0 >> PLL2650XX_MDIV_SHIFT) & PLL2650XX_MDIV_MASK;
1082 pdiv = (pll_con0 >> PLL2650XX_PDIV_SHIFT) & PLL2650XX_PDIV_MASK;
1083 sdiv = (pll_con0 >> PLL2650XX_SDIV_SHIFT) & PLL2650XX_SDIV_MASK;
1084 kdiv = (s16)(pll_con2 & PLL2650XX_KDIV_MASK);
1086 fvco *= (mdiv << 16) + kdiv;
1087 do_div(fvco, (pdiv << sdiv));
1090 return (unsigned long)fvco;
1093 static int samsung_pll2650xx_set_rate(struct clk_hw *hw, unsigned long drate,
1094 unsigned long parent_rate)
1096 struct samsung_clk_pll *pll = to_clk_pll(hw);
1097 u32 tmp, pll_con0, pll_con2;
1098 const struct samsung_pll_rate_table *rate;
1100 rate = samsung_get_pll_settings(pll, drate);
1102 pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__,
1103 drate, __clk_get_name(hw->clk));
1107 pll_con0 = __raw_readl(pll->con_reg);
1108 pll_con2 = __raw_readl(pll->con_reg + 8);
1110 /* Change PLL PMS values */
1111 pll_con0 &= ~(PLL2650XX_MDIV_MASK << PLL2650XX_MDIV_SHIFT |
1112 PLL2650XX_PDIV_MASK << PLL2650XX_PDIV_SHIFT |
1113 PLL2650XX_SDIV_MASK << PLL2650XX_SDIV_SHIFT);
1114 pll_con0 |= rate->mdiv << PLL2650XX_MDIV_SHIFT;
1115 pll_con0 |= rate->pdiv << PLL2650XX_PDIV_SHIFT;
1116 pll_con0 |= rate->sdiv << PLL2650XX_SDIV_SHIFT;
1117 pll_con0 |= 1 << PLL2650XX_PLL_ENABLE_SHIFT;
1118 pll_con0 |= 1 << PLL2650XX_PLL_FOUTMASK_SHIFT;
1120 pll_con2 &= ~(PLL2650XX_KDIV_MASK << PLL2650XX_KDIV_SHIFT);
1121 pll_con2 |= ((~(rate->kdiv) + 1) & PLL2650XX_KDIV_MASK)
1122 << PLL2650XX_KDIV_SHIFT;
1124 /* Set PLL lock time. */
1125 __raw_writel(PLL2650XX_LOCK_FACTOR * rate->pdiv, pll->lock_reg);
1127 __raw_writel(pll_con0, pll->con_reg);
1128 __raw_writel(pll_con2, pll->con_reg + 8);
1131 tmp = __raw_readl(pll->con_reg);
1132 } while (!(tmp & (0x1 << PLL2650XX_PLL_LOCKTIME_SHIFT)));
1137 static const struct clk_ops samsung_pll2650xx_clk_ops = {
1138 .recalc_rate = samsung_pll2650xx_recalc_rate,
1139 .set_rate = samsung_pll2650xx_set_rate,
1140 .round_rate = samsung_pll_round_rate,
1143 static const struct clk_ops samsung_pll2650xx_clk_min_ops = {
1144 .recalc_rate = samsung_pll2650xx_recalc_rate,
1147 static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx,
1148 struct samsung_pll_clock *pll_clk,
1151 struct samsung_clk_pll *pll;
1153 struct clk_init_data init;
1156 pll = kzalloc(sizeof(*pll), GFP_KERNEL);
1158 pr_err("%s: could not allocate pll clk %s\n",
1159 __func__, pll_clk->name);
1163 init.name = pll_clk->name;
1164 init.flags = pll_clk->flags;
1165 init.parent_names = &pll_clk->parent_name;
1166 init.num_parents = 1;
1168 if (pll_clk->rate_table) {
1169 /* find count of rates in rate_table */
1170 for (len = 0; pll_clk->rate_table[len].rate != 0; )
1173 pll->rate_count = len;
1174 pll->rate_table = kmemdup(pll_clk->rate_table,
1176 sizeof(struct samsung_pll_rate_table),
1178 WARN(!pll->rate_table,
1179 "%s: could not allocate rate table for %s\n",
1180 __func__, pll_clk->name);
1183 switch (pll_clk->type) {
1185 init.ops = &samsung_pll2126_clk_ops;
1188 init.ops = &samsung_pll3000_clk_ops;
1190 /* clk_ops for 35xx and 2550 are similar */
1193 if (!pll->rate_table)
1194 init.ops = &samsung_pll35xx_clk_min_ops;
1196 init.ops = &samsung_pll35xx_clk_ops;
1199 init.ops = &samsung_pll45xx_clk_min_ops;
1203 if (!pll->rate_table)
1204 init.ops = &samsung_pll45xx_clk_min_ops;
1206 init.ops = &samsung_pll45xx_clk_ops;
1208 /* clk_ops for 36xx and 2650 are similar */
1211 if (!pll->rate_table)
1212 init.ops = &samsung_pll36xx_clk_min_ops;
1214 init.ops = &samsung_pll36xx_clk_ops;
1217 case pll_6552_s3c2416:
1218 init.ops = &samsung_pll6552_clk_ops;
1221 init.ops = &samsung_pll6553_clk_ops;
1226 if (!pll->rate_table)
1227 init.ops = &samsung_pll46xx_clk_min_ops;
1229 init.ops = &samsung_pll46xx_clk_ops;
1231 case pll_s3c2410_mpll:
1232 if (!pll->rate_table)
1233 init.ops = &samsung_s3c2410_mpll_clk_min_ops;
1235 init.ops = &samsung_s3c2410_mpll_clk_ops;
1237 case pll_s3c2410_upll:
1238 if (!pll->rate_table)
1239 init.ops = &samsung_s3c2410_upll_clk_min_ops;
1241 init.ops = &samsung_s3c2410_upll_clk_ops;
1243 case pll_s3c2440_mpll:
1244 if (!pll->rate_table)
1245 init.ops = &samsung_s3c2440_mpll_clk_min_ops;
1247 init.ops = &samsung_s3c2440_mpll_clk_ops;
1250 if (!pll->rate_table)
1251 init.ops = &samsung_pll2550xx_clk_min_ops;
1253 init.ops = &samsung_pll2550xx_clk_ops;
1256 if (!pll->rate_table)
1257 init.ops = &samsung_pll2650xx_clk_min_ops;
1259 init.ops = &samsung_pll2650xx_clk_ops;
1262 pr_warn("%s: Unknown pll type for pll clk %s\n",
1263 __func__, pll_clk->name);
1266 pll->hw.init = &init;
1267 pll->type = pll_clk->type;
1268 pll->lock_reg = base + pll_clk->lock_offset;
1269 pll->con_reg = base + pll_clk->con_offset;
1271 clk = clk_register(NULL, &pll->hw);
1273 pr_err("%s: failed to register pll clock %s : %ld\n",
1274 __func__, pll_clk->name, PTR_ERR(clk));
1279 samsung_clk_add_lookup(ctx, clk, pll_clk->id);
1281 if (!pll_clk->alias)
1284 ret = clk_register_clkdev(clk, pll_clk->alias, pll_clk->dev_name);
1286 pr_err("%s: failed to register lookup for %s : %d",
1287 __func__, pll_clk->name, ret);
1290 void __init samsung_clk_register_pll(struct samsung_clk_provider *ctx,
1291 struct samsung_pll_clock *pll_list,
1292 unsigned int nr_pll, void __iomem *base)
1296 for (cnt = 0; cnt < nr_pll; cnt++)
1297 _samsung_clk_register_pll(ctx, &pll_list[cnt], base);