xref: /openbmc/linux/drivers/clk/tegra/clk-pll.c (revision aeb64ff3)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (c) 2012, 2013, NVIDIA CORPORATION.  All rights reserved.
4  */
5 
6 #include <linux/slab.h>
7 #include <linux/io.h>
8 #include <linux/delay.h>
9 #include <linux/err.h>
10 #include <linux/clk.h>
11 #include <linux/clk-provider.h>
12 
13 #include "clk.h"
14 
15 #define PLL_BASE_BYPASS BIT(31)
16 #define PLL_BASE_ENABLE BIT(30)
17 #define PLL_BASE_REF_ENABLE BIT(29)
18 #define PLL_BASE_OVERRIDE BIT(28)
19 
20 #define PLL_BASE_DIVP_SHIFT 20
21 #define PLL_BASE_DIVP_WIDTH 3
22 #define PLL_BASE_DIVN_SHIFT 8
23 #define PLL_BASE_DIVN_WIDTH 10
24 #define PLL_BASE_DIVM_SHIFT 0
25 #define PLL_BASE_DIVM_WIDTH 5
26 #define PLLU_POST_DIVP_MASK 0x1
27 
28 #define PLL_MISC_DCCON_SHIFT 20
29 #define PLL_MISC_CPCON_SHIFT 8
30 #define PLL_MISC_CPCON_WIDTH 4
31 #define PLL_MISC_CPCON_MASK ((1 << PLL_MISC_CPCON_WIDTH) - 1)
32 #define PLL_MISC_LFCON_SHIFT 4
33 #define PLL_MISC_LFCON_WIDTH 4
34 #define PLL_MISC_LFCON_MASK ((1 << PLL_MISC_LFCON_WIDTH) - 1)
35 #define PLL_MISC_VCOCON_SHIFT 0
36 #define PLL_MISC_VCOCON_WIDTH 4
37 #define PLL_MISC_VCOCON_MASK ((1 << PLL_MISC_VCOCON_WIDTH) - 1)
38 
39 #define OUT_OF_TABLE_CPCON 8
40 
41 #define PMC_PLLP_WB0_OVERRIDE 0xf8
42 #define PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE BIT(12)
43 #define PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE BIT(11)
44 
45 #define PLL_POST_LOCK_DELAY 50
46 
47 #define PLLDU_LFCON_SET_DIVN 600
48 
49 #define PLLE_BASE_DIVCML_SHIFT 24
50 #define PLLE_BASE_DIVCML_MASK 0xf
51 #define PLLE_BASE_DIVP_SHIFT 16
52 #define PLLE_BASE_DIVP_WIDTH 6
53 #define PLLE_BASE_DIVN_SHIFT 8
54 #define PLLE_BASE_DIVN_WIDTH 8
55 #define PLLE_BASE_DIVM_SHIFT 0
56 #define PLLE_BASE_DIVM_WIDTH 8
57 #define PLLE_BASE_ENABLE BIT(31)
58 
59 #define PLLE_MISC_SETUP_BASE_SHIFT 16
60 #define PLLE_MISC_SETUP_BASE_MASK (0xffff << PLLE_MISC_SETUP_BASE_SHIFT)
61 #define PLLE_MISC_LOCK_ENABLE BIT(9)
62 #define PLLE_MISC_READY BIT(15)
63 #define PLLE_MISC_SETUP_EX_SHIFT 2
64 #define PLLE_MISC_SETUP_EX_MASK (3 << PLLE_MISC_SETUP_EX_SHIFT)
65 #define PLLE_MISC_SETUP_MASK (PLLE_MISC_SETUP_BASE_MASK |	\
66 			      PLLE_MISC_SETUP_EX_MASK)
67 #define PLLE_MISC_SETUP_VALUE (7 << PLLE_MISC_SETUP_BASE_SHIFT)
68 
69 #define PLLE_SS_CTRL 0x68
70 #define PLLE_SS_CNTL_BYPASS_SS BIT(10)
71 #define PLLE_SS_CNTL_INTERP_RESET BIT(11)
72 #define PLLE_SS_CNTL_SSC_BYP BIT(12)
73 #define PLLE_SS_CNTL_CENTER BIT(14)
74 #define PLLE_SS_CNTL_INVERT BIT(15)
75 #define PLLE_SS_DISABLE (PLLE_SS_CNTL_BYPASS_SS | PLLE_SS_CNTL_INTERP_RESET |\
76 				PLLE_SS_CNTL_SSC_BYP)
77 #define PLLE_SS_MAX_MASK 0x1ff
78 #define PLLE_SS_MAX_VAL_TEGRA114 0x25
79 #define PLLE_SS_MAX_VAL_TEGRA210 0x21
80 #define PLLE_SS_INC_MASK (0xff << 16)
81 #define PLLE_SS_INC_VAL (0x1 << 16)
82 #define PLLE_SS_INCINTRV_MASK (0x3f << 24)
83 #define PLLE_SS_INCINTRV_VAL_TEGRA114 (0x20 << 24)
84 #define PLLE_SS_INCINTRV_VAL_TEGRA210 (0x23 << 24)
85 #define PLLE_SS_COEFFICIENTS_MASK \
86 	(PLLE_SS_MAX_MASK | PLLE_SS_INC_MASK | PLLE_SS_INCINTRV_MASK)
87 #define PLLE_SS_COEFFICIENTS_VAL_TEGRA114 \
88 	(PLLE_SS_MAX_VAL_TEGRA114 | PLLE_SS_INC_VAL |\
89 	 PLLE_SS_INCINTRV_VAL_TEGRA114)
90 #define PLLE_SS_COEFFICIENTS_VAL_TEGRA210 \
91 	(PLLE_SS_MAX_VAL_TEGRA210 | PLLE_SS_INC_VAL |\
92 	 PLLE_SS_INCINTRV_VAL_TEGRA210)
93 
94 #define PLLE_AUX_PLLP_SEL	BIT(2)
95 #define PLLE_AUX_USE_LOCKDET	BIT(3)
96 #define PLLE_AUX_ENABLE_SWCTL	BIT(4)
97 #define PLLE_AUX_SS_SWCTL	BIT(6)
98 #define PLLE_AUX_SEQ_ENABLE	BIT(24)
99 #define PLLE_AUX_SEQ_START_STATE BIT(25)
100 #define PLLE_AUX_PLLRE_SEL	BIT(28)
101 #define PLLE_AUX_SS_SEQ_INCLUDE	BIT(31)
102 
103 #define XUSBIO_PLL_CFG0		0x51c
104 #define XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL	BIT(0)
105 #define XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL	BIT(2)
106 #define XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET	BIT(6)
107 #define XUSBIO_PLL_CFG0_SEQ_ENABLE		BIT(24)
108 #define XUSBIO_PLL_CFG0_SEQ_START_STATE		BIT(25)
109 
110 #define SATA_PLL_CFG0		0x490
111 #define SATA_PLL_CFG0_PADPLL_RESET_SWCTL	BIT(0)
112 #define SATA_PLL_CFG0_PADPLL_USE_LOCKDET	BIT(2)
113 #define SATA_PLL_CFG0_SEQ_ENABLE		BIT(24)
114 #define SATA_PLL_CFG0_SEQ_START_STATE		BIT(25)
115 
116 #define PLLE_MISC_PLLE_PTS	BIT(8)
117 #define PLLE_MISC_IDDQ_SW_VALUE	BIT(13)
118 #define PLLE_MISC_IDDQ_SW_CTRL	BIT(14)
119 #define PLLE_MISC_VREG_BG_CTRL_SHIFT	4
120 #define PLLE_MISC_VREG_BG_CTRL_MASK	(3 << PLLE_MISC_VREG_BG_CTRL_SHIFT)
121 #define PLLE_MISC_VREG_CTRL_SHIFT	2
122 #define PLLE_MISC_VREG_CTRL_MASK	(2 << PLLE_MISC_VREG_CTRL_SHIFT)
123 
124 #define PLLCX_MISC_STROBE	BIT(31)
125 #define PLLCX_MISC_RESET	BIT(30)
126 #define PLLCX_MISC_SDM_DIV_SHIFT 28
127 #define PLLCX_MISC_SDM_DIV_MASK (0x3 << PLLCX_MISC_SDM_DIV_SHIFT)
128 #define PLLCX_MISC_FILT_DIV_SHIFT 26
129 #define PLLCX_MISC_FILT_DIV_MASK (0x3 << PLLCX_MISC_FILT_DIV_SHIFT)
130 #define PLLCX_MISC_ALPHA_SHIFT 18
131 #define PLLCX_MISC_DIV_LOW_RANGE \
132 		((0x1 << PLLCX_MISC_SDM_DIV_SHIFT) | \
133 		(0x1 << PLLCX_MISC_FILT_DIV_SHIFT))
134 #define PLLCX_MISC_DIV_HIGH_RANGE \
135 		((0x2 << PLLCX_MISC_SDM_DIV_SHIFT) | \
136 		(0x2 << PLLCX_MISC_FILT_DIV_SHIFT))
137 #define PLLCX_MISC_COEF_LOW_RANGE \
138 		((0x14 << PLLCX_MISC_KA_SHIFT) | (0x38 << PLLCX_MISC_KB_SHIFT))
139 #define PLLCX_MISC_KA_SHIFT 2
140 #define PLLCX_MISC_KB_SHIFT 9
141 #define PLLCX_MISC_DEFAULT (PLLCX_MISC_COEF_LOW_RANGE | \
142 			    (0x19 << PLLCX_MISC_ALPHA_SHIFT) | \
143 			    PLLCX_MISC_DIV_LOW_RANGE | \
144 			    PLLCX_MISC_RESET)
145 #define PLLCX_MISC1_DEFAULT 0x000d2308
146 #define PLLCX_MISC2_DEFAULT 0x30211200
147 #define PLLCX_MISC3_DEFAULT 0x200
148 
149 #define PMC_SATA_PWRGT 0x1ac
150 #define PMC_SATA_PWRGT_PLLE_IDDQ_VALUE BIT(5)
151 #define PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL BIT(4)
152 
153 #define PLLSS_MISC_KCP		0
154 #define PLLSS_MISC_KVCO		0
155 #define PLLSS_MISC_SETUP	0
156 #define PLLSS_EN_SDM		0
157 #define PLLSS_EN_SSC		0
158 #define PLLSS_EN_DITHER2	0
159 #define PLLSS_EN_DITHER		1
160 #define PLLSS_SDM_RESET		0
161 #define PLLSS_CLAMP		0
162 #define PLLSS_SDM_SSC_MAX	0
163 #define PLLSS_SDM_SSC_MIN	0
164 #define PLLSS_SDM_SSC_STEP	0
165 #define PLLSS_SDM_DIN		0
166 #define PLLSS_MISC_DEFAULT ((PLLSS_MISC_KCP << 25) | \
167 			    (PLLSS_MISC_KVCO << 24) | \
168 			    PLLSS_MISC_SETUP)
169 #define PLLSS_CFG_DEFAULT ((PLLSS_EN_SDM << 31) | \
170 			   (PLLSS_EN_SSC << 30) | \
171 			   (PLLSS_EN_DITHER2 << 29) | \
172 			   (PLLSS_EN_DITHER << 28) | \
173 			   (PLLSS_SDM_RESET) << 27 | \
174 			   (PLLSS_CLAMP << 22))
175 #define PLLSS_CTRL1_DEFAULT \
176 			((PLLSS_SDM_SSC_MAX << 16) | PLLSS_SDM_SSC_MIN)
177 #define PLLSS_CTRL2_DEFAULT \
178 			((PLLSS_SDM_SSC_STEP << 16) | PLLSS_SDM_DIN)
179 #define PLLSS_LOCK_OVERRIDE	BIT(24)
180 #define PLLSS_REF_SRC_SEL_SHIFT	25
181 #define PLLSS_REF_SRC_SEL_MASK	(3 << PLLSS_REF_SRC_SEL_SHIFT)
182 
183 #define UTMIP_PLL_CFG1 0x484
184 #define UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(x) (((x) & 0xfff) << 0)
185 #define UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(x) (((x) & 0x1f) << 27)
186 #define UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN BIT(12)
187 #define UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN BIT(14)
188 #define UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERUP BIT(15)
189 #define UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN BIT(16)
190 #define UTMIP_PLL_CFG1_FORCE_PLLU_POWERUP BIT(17)
191 
192 #define UTMIP_PLL_CFG2 0x488
193 #define UTMIP_PLL_CFG2_STABLE_COUNT(x) (((x) & 0xfff) << 6)
194 #define UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(x) (((x) & 0x3f) << 18)
195 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN BIT(0)
196 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERUP BIT(1)
197 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN BIT(2)
198 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERUP BIT(3)
199 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN BIT(4)
200 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERUP BIT(5)
201 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_D_POWERDOWN BIT(24)
202 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_D_POWERUP BIT(25)
203 #define UTMIP_PLL_CFG2_PHY_XTAL_CLOCKEN BIT(30)
204 
205 #define UTMIPLL_HW_PWRDN_CFG0 0x52c
206 #define UTMIPLL_HW_PWRDN_CFG0_IDDQ_SWCTL BIT(0)
207 #define UTMIPLL_HW_PWRDN_CFG0_IDDQ_OVERRIDE BIT(1)
208 #define UTMIPLL_HW_PWRDN_CFG0_CLK_ENABLE_SWCTL BIT(2)
209 #define UTMIPLL_HW_PWRDN_CFG0_SEQ_IN_SWCTL BIT(4)
210 #define UTMIPLL_HW_PWRDN_CFG0_SEQ_RESET_INPUT_VALUE BIT(5)
211 #define UTMIPLL_HW_PWRDN_CFG0_USE_LOCKDET BIT(6)
212 #define UTMIPLL_HW_PWRDN_CFG0_SEQ_ENABLE BIT(24)
213 #define UTMIPLL_HW_PWRDN_CFG0_SEQ_START_STATE BIT(25)
214 
215 #define PLLU_HW_PWRDN_CFG0 0x530
216 #define PLLU_HW_PWRDN_CFG0_CLK_SWITCH_SWCTL BIT(0)
217 #define PLLU_HW_PWRDN_CFG0_CLK_ENABLE_SWCTL BIT(2)
218 #define PLLU_HW_PWRDN_CFG0_USE_LOCKDET BIT(6)
219 #define PLLU_HW_PWRDN_CFG0_USE_SWITCH_DETECT BIT(7)
220 #define PLLU_HW_PWRDN_CFG0_SEQ_ENABLE BIT(24)
221 #define PLLU_HW_PWRDN_CFG0_IDDQ_PD_INCLUDE BIT(28)
222 
223 #define XUSB_PLL_CFG0 0x534
224 #define XUSB_PLL_CFG0_UTMIPLL_LOCK_DLY 0x3ff
225 #define XUSB_PLL_CFG0_PLLU_LOCK_DLY (0x3ff << 14)
226 
227 #define PLLU_BASE_CLKENABLE_USB BIT(21)
228 #define PLLU_BASE_OVERRIDE BIT(24)
229 
230 #define pll_readl(offset, p) readl_relaxed(p->clk_base + offset)
231 #define pll_readl_base(p) pll_readl(p->params->base_reg, p)
232 #define pll_readl_misc(p) pll_readl(p->params->misc_reg, p)
233 #define pll_override_readl(offset, p) readl_relaxed(p->pmc + offset)
234 #define pll_readl_sdm_din(p) pll_readl(p->params->sdm_din_reg, p)
235 #define pll_readl_sdm_ctrl(p) pll_readl(p->params->sdm_ctrl_reg, p)
236 
237 #define pll_writel(val, offset, p) writel_relaxed(val, p->clk_base + offset)
238 #define pll_writel_base(val, p) pll_writel(val, p->params->base_reg, p)
239 #define pll_writel_misc(val, p) pll_writel(val, p->params->misc_reg, p)
240 #define pll_override_writel(val, offset, p) writel(val, p->pmc + offset)
241 #define pll_writel_sdm_din(val, p) pll_writel(val, p->params->sdm_din_reg, p)
242 #define pll_writel_sdm_ctrl(val, p) pll_writel(val, p->params->sdm_ctrl_reg, p)
243 
244 #define mask(w) ((1 << (w)) - 1)
245 #define divm_mask(p) mask(p->params->div_nmp->divm_width)
246 #define divn_mask(p) mask(p->params->div_nmp->divn_width)
247 #define divp_mask(p) (p->params->flags & TEGRA_PLLU ? PLLU_POST_DIVP_MASK :\
248 		      mask(p->params->div_nmp->divp_width))
249 #define sdm_din_mask(p) p->params->sdm_din_mask
250 #define sdm_en_mask(p) p->params->sdm_ctrl_en_mask
251 
252 #define divm_shift(p) (p)->params->div_nmp->divm_shift
253 #define divn_shift(p) (p)->params->div_nmp->divn_shift
254 #define divp_shift(p) (p)->params->div_nmp->divp_shift
255 
256 #define divm_mask_shifted(p) (divm_mask(p) << divm_shift(p))
257 #define divn_mask_shifted(p) (divn_mask(p) << divn_shift(p))
258 #define divp_mask_shifted(p) (divp_mask(p) << divp_shift(p))
259 
260 #define divm_max(p) (divm_mask(p))
261 #define divn_max(p) (divn_mask(p))
262 #define divp_max(p) (1 << (divp_mask(p)))
263 
264 #define sdin_din_to_data(din)	((u16)((din) ? : 0xFFFFU))
265 #define sdin_data_to_din(dat)	(((dat) == 0xFFFFU) ? 0 : (s16)dat)
266 
267 static struct div_nmp default_nmp = {
268 	.divn_shift = PLL_BASE_DIVN_SHIFT,
269 	.divn_width = PLL_BASE_DIVN_WIDTH,
270 	.divm_shift = PLL_BASE_DIVM_SHIFT,
271 	.divm_width = PLL_BASE_DIVM_WIDTH,
272 	.divp_shift = PLL_BASE_DIVP_SHIFT,
273 	.divp_width = PLL_BASE_DIVP_WIDTH,
274 };
275 
276 static void clk_pll_enable_lock(struct tegra_clk_pll *pll)
277 {
278 	u32 val;
279 
280 	if (!(pll->params->flags & TEGRA_PLL_USE_LOCK))
281 		return;
282 
283 	if (!(pll->params->flags & TEGRA_PLL_HAS_LOCK_ENABLE))
284 		return;
285 
286 	val = pll_readl_misc(pll);
287 	val |= BIT(pll->params->lock_enable_bit_idx);
288 	pll_writel_misc(val, pll);
289 }
290 
291 static int clk_pll_wait_for_lock(struct tegra_clk_pll *pll)
292 {
293 	int i;
294 	u32 val, lock_mask;
295 	void __iomem *lock_addr;
296 
297 	if (!(pll->params->flags & TEGRA_PLL_USE_LOCK)) {
298 		udelay(pll->params->lock_delay);
299 		return 0;
300 	}
301 
302 	lock_addr = pll->clk_base;
303 	if (pll->params->flags & TEGRA_PLL_LOCK_MISC)
304 		lock_addr += pll->params->misc_reg;
305 	else
306 		lock_addr += pll->params->base_reg;
307 
308 	lock_mask = pll->params->lock_mask;
309 
310 	for (i = 0; i < pll->params->lock_delay; i++) {
311 		val = readl_relaxed(lock_addr);
312 		if ((val & lock_mask) == lock_mask) {
313 			udelay(PLL_POST_LOCK_DELAY);
314 			return 0;
315 		}
316 		udelay(2); /* timeout = 2 * lock time */
317 	}
318 
319 	pr_err("%s: Timed out waiting for pll %s lock\n", __func__,
320 	       clk_hw_get_name(&pll->hw));
321 
322 	return -1;
323 }
324 
325 int tegra_pll_wait_for_lock(struct tegra_clk_pll *pll)
326 {
327 	return clk_pll_wait_for_lock(pll);
328 }
329 
330 static int clk_pll_is_enabled(struct clk_hw *hw)
331 {
332 	struct tegra_clk_pll *pll = to_clk_pll(hw);
333 	u32 val;
334 
335 	if (pll->params->flags & TEGRA_PLLM) {
336 		val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE);
337 		if (val & PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE)
338 			return val & PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE ? 1 : 0;
339 	}
340 
341 	val = pll_readl_base(pll);
342 
343 	return val & PLL_BASE_ENABLE ? 1 : 0;
344 }
345 
346 static void _clk_pll_enable(struct clk_hw *hw)
347 {
348 	struct tegra_clk_pll *pll = to_clk_pll(hw);
349 	u32 val;
350 
351 	if (pll->params->iddq_reg) {
352 		val = pll_readl(pll->params->iddq_reg, pll);
353 		val &= ~BIT(pll->params->iddq_bit_idx);
354 		pll_writel(val, pll->params->iddq_reg, pll);
355 		udelay(5);
356 	}
357 
358 	if (pll->params->reset_reg) {
359 		val = pll_readl(pll->params->reset_reg, pll);
360 		val &= ~BIT(pll->params->reset_bit_idx);
361 		pll_writel(val, pll->params->reset_reg, pll);
362 	}
363 
364 	clk_pll_enable_lock(pll);
365 
366 	val = pll_readl_base(pll);
367 	if (pll->params->flags & TEGRA_PLL_BYPASS)
368 		val &= ~PLL_BASE_BYPASS;
369 	val |= PLL_BASE_ENABLE;
370 	pll_writel_base(val, pll);
371 
372 	if (pll->params->flags & TEGRA_PLLM) {
373 		val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE);
374 		val |= PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE;
375 		writel_relaxed(val, pll->pmc + PMC_PLLP_WB0_OVERRIDE);
376 	}
377 }
378 
379 static void _clk_pll_disable(struct clk_hw *hw)
380 {
381 	struct tegra_clk_pll *pll = to_clk_pll(hw);
382 	u32 val;
383 
384 	val = pll_readl_base(pll);
385 	if (pll->params->flags & TEGRA_PLL_BYPASS)
386 		val &= ~PLL_BASE_BYPASS;
387 	val &= ~PLL_BASE_ENABLE;
388 	pll_writel_base(val, pll);
389 
390 	if (pll->params->flags & TEGRA_PLLM) {
391 		val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE);
392 		val &= ~PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE;
393 		writel_relaxed(val, pll->pmc + PMC_PLLP_WB0_OVERRIDE);
394 	}
395 
396 	if (pll->params->reset_reg) {
397 		val = pll_readl(pll->params->reset_reg, pll);
398 		val |= BIT(pll->params->reset_bit_idx);
399 		pll_writel(val, pll->params->reset_reg, pll);
400 	}
401 
402 	if (pll->params->iddq_reg) {
403 		val = pll_readl(pll->params->iddq_reg, pll);
404 		val |= BIT(pll->params->iddq_bit_idx);
405 		pll_writel(val, pll->params->iddq_reg, pll);
406 		udelay(2);
407 	}
408 }
409 
410 static void pll_clk_start_ss(struct tegra_clk_pll *pll)
411 {
412 	if (pll->params->defaults_set && pll->params->ssc_ctrl_reg) {
413 		u32 val = pll_readl(pll->params->ssc_ctrl_reg, pll);
414 
415 		val |= pll->params->ssc_ctrl_en_mask;
416 		pll_writel(val, pll->params->ssc_ctrl_reg, pll);
417 	}
418 }
419 
420 static void pll_clk_stop_ss(struct tegra_clk_pll *pll)
421 {
422 	if (pll->params->defaults_set && pll->params->ssc_ctrl_reg) {
423 		u32 val = pll_readl(pll->params->ssc_ctrl_reg, pll);
424 
425 		val &= ~pll->params->ssc_ctrl_en_mask;
426 		pll_writel(val, pll->params->ssc_ctrl_reg, pll);
427 	}
428 }
429 
430 static int clk_pll_enable(struct clk_hw *hw)
431 {
432 	struct tegra_clk_pll *pll = to_clk_pll(hw);
433 	unsigned long flags = 0;
434 	int ret;
435 
436 	if (clk_pll_is_enabled(hw))
437 		return 0;
438 
439 	if (pll->lock)
440 		spin_lock_irqsave(pll->lock, flags);
441 
442 	_clk_pll_enable(hw);
443 
444 	ret = clk_pll_wait_for_lock(pll);
445 
446 	pll_clk_start_ss(pll);
447 
448 	if (pll->lock)
449 		spin_unlock_irqrestore(pll->lock, flags);
450 
451 	return ret;
452 }
453 
454 static void clk_pll_disable(struct clk_hw *hw)
455 {
456 	struct tegra_clk_pll *pll = to_clk_pll(hw);
457 	unsigned long flags = 0;
458 
459 	if (pll->lock)
460 		spin_lock_irqsave(pll->lock, flags);
461 
462 	pll_clk_stop_ss(pll);
463 
464 	_clk_pll_disable(hw);
465 
466 	if (pll->lock)
467 		spin_unlock_irqrestore(pll->lock, flags);
468 }
469 
470 static int _p_div_to_hw(struct clk_hw *hw, u8 p_div)
471 {
472 	struct tegra_clk_pll *pll = to_clk_pll(hw);
473 	const struct pdiv_map *p_tohw = pll->params->pdiv_tohw;
474 
475 	if (p_tohw) {
476 		while (p_tohw->pdiv) {
477 			if (p_div <= p_tohw->pdiv)
478 				return p_tohw->hw_val;
479 			p_tohw++;
480 		}
481 		return -EINVAL;
482 	}
483 	return -EINVAL;
484 }
485 
486 int tegra_pll_p_div_to_hw(struct tegra_clk_pll *pll, u8 p_div)
487 {
488 	return _p_div_to_hw(&pll->hw, p_div);
489 }
490 
491 static int _hw_to_p_div(struct clk_hw *hw, u8 p_div_hw)
492 {
493 	struct tegra_clk_pll *pll = to_clk_pll(hw);
494 	const struct pdiv_map *p_tohw = pll->params->pdiv_tohw;
495 
496 	if (p_tohw) {
497 		while (p_tohw->pdiv) {
498 			if (p_div_hw == p_tohw->hw_val)
499 				return p_tohw->pdiv;
500 			p_tohw++;
501 		}
502 		return -EINVAL;
503 	}
504 
505 	return 1 << p_div_hw;
506 }
507 
508 static int _get_table_rate(struct clk_hw *hw,
509 			   struct tegra_clk_pll_freq_table *cfg,
510 			   unsigned long rate, unsigned long parent_rate)
511 {
512 	struct tegra_clk_pll *pll = to_clk_pll(hw);
513 	struct tegra_clk_pll_freq_table *sel;
514 	int p;
515 
516 	for (sel = pll->params->freq_table; sel->input_rate != 0; sel++)
517 		if (sel->input_rate == parent_rate &&
518 		    sel->output_rate == rate)
519 			break;
520 
521 	if (sel->input_rate == 0)
522 		return -EINVAL;
523 
524 	if (pll->params->pdiv_tohw) {
525 		p = _p_div_to_hw(hw, sel->p);
526 		if (p < 0)
527 			return p;
528 	} else {
529 		p = ilog2(sel->p);
530 	}
531 
532 	cfg->input_rate = sel->input_rate;
533 	cfg->output_rate = sel->output_rate;
534 	cfg->m = sel->m;
535 	cfg->n = sel->n;
536 	cfg->p = p;
537 	cfg->cpcon = sel->cpcon;
538 	cfg->sdm_data = sel->sdm_data;
539 
540 	return 0;
541 }
542 
543 static int _calc_rate(struct clk_hw *hw, struct tegra_clk_pll_freq_table *cfg,
544 		      unsigned long rate, unsigned long parent_rate)
545 {
546 	struct tegra_clk_pll *pll = to_clk_pll(hw);
547 	unsigned long cfreq;
548 	u32 p_div = 0;
549 	int ret;
550 
551 	switch (parent_rate) {
552 	case 12000000:
553 	case 26000000:
554 		cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2000000;
555 		break;
556 	case 13000000:
557 		cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2600000;
558 		break;
559 	case 16800000:
560 	case 19200000:
561 		cfreq = (rate <= 1200000 * 1000) ? 1200000 : 2400000;
562 		break;
563 	case 9600000:
564 	case 28800000:
565 		/*
566 		 * PLL_P_OUT1 rate is not listed in PLLA table
567 		 */
568 		cfreq = parent_rate / (parent_rate / 1000000);
569 		break;
570 	default:
571 		pr_err("%s Unexpected reference rate %lu\n",
572 		       __func__, parent_rate);
573 		BUG();
574 	}
575 
576 	/* Raise VCO to guarantee 0.5% accuracy */
577 	for (cfg->output_rate = rate; cfg->output_rate < 200 * cfreq;
578 	     cfg->output_rate <<= 1)
579 		p_div++;
580 
581 	cfg->m = parent_rate / cfreq;
582 	cfg->n = cfg->output_rate / cfreq;
583 	cfg->cpcon = OUT_OF_TABLE_CPCON;
584 
585 	if (cfg->m == 0 || cfg->m > divm_max(pll) ||
586 	    cfg->n > divn_max(pll) || (1 << p_div) > divp_max(pll) ||
587 	    cfg->output_rate > pll->params->vco_max) {
588 		return -EINVAL;
589 	}
590 
591 	cfg->output_rate = cfg->n * DIV_ROUND_UP(parent_rate, cfg->m);
592 	cfg->output_rate >>= p_div;
593 
594 	if (pll->params->pdiv_tohw) {
595 		ret = _p_div_to_hw(hw, 1 << p_div);
596 		if (ret < 0)
597 			return ret;
598 		else
599 			cfg->p = ret;
600 	} else
601 		cfg->p = p_div;
602 
603 	return 0;
604 }
605 
606 /*
607  * SDM (Sigma Delta Modulator) divisor is 16-bit 2's complement signed number
608  * within (-2^12 ... 2^12-1) range. Represented in PLL data structure as
609  * unsigned 16-bit value, with "0" divisor mapped to 0xFFFF. Data "0" is used
610  * to indicate that SDM is disabled.
611  *
612  * Effective ndiv value when SDM is enabled: ndiv + 1/2 + sdm_din/2^13
613  */
614 static void clk_pll_set_sdm_data(struct clk_hw *hw,
615 				 struct tegra_clk_pll_freq_table *cfg)
616 {
617 	struct tegra_clk_pll *pll = to_clk_pll(hw);
618 	u32 val;
619 	bool enabled;
620 
621 	if (!pll->params->sdm_din_reg)
622 		return;
623 
624 	if (cfg->sdm_data) {
625 		val = pll_readl_sdm_din(pll) & (~sdm_din_mask(pll));
626 		val |= sdin_data_to_din(cfg->sdm_data) & sdm_din_mask(pll);
627 		pll_writel_sdm_din(val, pll);
628 	}
629 
630 	val = pll_readl_sdm_ctrl(pll);
631 	enabled = (val & sdm_en_mask(pll));
632 
633 	if (cfg->sdm_data == 0 && enabled)
634 		val &= ~pll->params->sdm_ctrl_en_mask;
635 
636 	if (cfg->sdm_data != 0 && !enabled)
637 		val |= pll->params->sdm_ctrl_en_mask;
638 
639 	pll_writel_sdm_ctrl(val, pll);
640 }
641 
642 static void _update_pll_mnp(struct tegra_clk_pll *pll,
643 			    struct tegra_clk_pll_freq_table *cfg)
644 {
645 	u32 val;
646 	struct tegra_clk_pll_params *params = pll->params;
647 	struct div_nmp *div_nmp = params->div_nmp;
648 
649 	if ((params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) &&
650 		(pll_override_readl(PMC_PLLP_WB0_OVERRIDE, pll) &
651 			PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE)) {
652 		val = pll_override_readl(params->pmc_divp_reg, pll);
653 		val &= ~(divp_mask(pll) << div_nmp->override_divp_shift);
654 		val |= cfg->p << div_nmp->override_divp_shift;
655 		pll_override_writel(val, params->pmc_divp_reg, pll);
656 
657 		val = pll_override_readl(params->pmc_divnm_reg, pll);
658 		val &= ~((divm_mask(pll) << div_nmp->override_divm_shift) |
659 			(divn_mask(pll) << div_nmp->override_divn_shift));
660 		val |= (cfg->m << div_nmp->override_divm_shift) |
661 			(cfg->n << div_nmp->override_divn_shift);
662 		pll_override_writel(val, params->pmc_divnm_reg, pll);
663 	} else {
664 		val = pll_readl_base(pll);
665 
666 		val &= ~(divm_mask_shifted(pll) | divn_mask_shifted(pll) |
667 			 divp_mask_shifted(pll));
668 
669 		val |= (cfg->m << divm_shift(pll)) |
670 		       (cfg->n << divn_shift(pll)) |
671 		       (cfg->p << divp_shift(pll));
672 
673 		pll_writel_base(val, pll);
674 
675 		clk_pll_set_sdm_data(&pll->hw, cfg);
676 	}
677 }
678 
679 static void _get_pll_mnp(struct tegra_clk_pll *pll,
680 			 struct tegra_clk_pll_freq_table *cfg)
681 {
682 	u32 val;
683 	struct tegra_clk_pll_params *params = pll->params;
684 	struct div_nmp *div_nmp = params->div_nmp;
685 
686 	*cfg = (struct tegra_clk_pll_freq_table) { };
687 
688 	if ((params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) &&
689 		(pll_override_readl(PMC_PLLP_WB0_OVERRIDE, pll) &
690 			PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE)) {
691 		val = pll_override_readl(params->pmc_divp_reg, pll);
692 		cfg->p = (val >> div_nmp->override_divp_shift) & divp_mask(pll);
693 
694 		val = pll_override_readl(params->pmc_divnm_reg, pll);
695 		cfg->m = (val >> div_nmp->override_divm_shift) & divm_mask(pll);
696 		cfg->n = (val >> div_nmp->override_divn_shift) & divn_mask(pll);
697 	}  else {
698 		val = pll_readl_base(pll);
699 
700 		cfg->m = (val >> div_nmp->divm_shift) & divm_mask(pll);
701 		cfg->n = (val >> div_nmp->divn_shift) & divn_mask(pll);
702 		cfg->p = (val >> div_nmp->divp_shift) & divp_mask(pll);
703 
704 		if (pll->params->sdm_din_reg) {
705 			if (sdm_en_mask(pll) & pll_readl_sdm_ctrl(pll)) {
706 				val = pll_readl_sdm_din(pll);
707 				val &= sdm_din_mask(pll);
708 				cfg->sdm_data = sdin_din_to_data(val);
709 			}
710 		}
711 	}
712 }
713 
714 static void _update_pll_cpcon(struct tegra_clk_pll *pll,
715 			      struct tegra_clk_pll_freq_table *cfg,
716 			      unsigned long rate)
717 {
718 	u32 val;
719 
720 	val = pll_readl_misc(pll);
721 
722 	val &= ~(PLL_MISC_CPCON_MASK << PLL_MISC_CPCON_SHIFT);
723 	val |= cfg->cpcon << PLL_MISC_CPCON_SHIFT;
724 
725 	if (pll->params->flags & TEGRA_PLL_SET_LFCON) {
726 		val &= ~(PLL_MISC_LFCON_MASK << PLL_MISC_LFCON_SHIFT);
727 		if (cfg->n >= PLLDU_LFCON_SET_DIVN)
728 			val |= 1 << PLL_MISC_LFCON_SHIFT;
729 	} else if (pll->params->flags & TEGRA_PLL_SET_DCCON) {
730 		val &= ~(1 << PLL_MISC_DCCON_SHIFT);
731 		if (rate >= (pll->params->vco_max >> 1))
732 			val |= 1 << PLL_MISC_DCCON_SHIFT;
733 	}
734 
735 	pll_writel_misc(val, pll);
736 }
737 
738 static int _program_pll(struct clk_hw *hw, struct tegra_clk_pll_freq_table *cfg,
739 			unsigned long rate)
740 {
741 	struct tegra_clk_pll *pll = to_clk_pll(hw);
742 	struct tegra_clk_pll_freq_table old_cfg;
743 	int state, ret = 0;
744 
745 	state = clk_pll_is_enabled(hw);
746 
747 	_get_pll_mnp(pll, &old_cfg);
748 
749 	if (state && pll->params->defaults_set && pll->params->dyn_ramp &&
750 			(cfg->m == old_cfg.m) && (cfg->p == old_cfg.p)) {
751 		ret = pll->params->dyn_ramp(pll, cfg);
752 		if (!ret)
753 			return 0;
754 	}
755 
756 	if (state) {
757 		pll_clk_stop_ss(pll);
758 		_clk_pll_disable(hw);
759 	}
760 
761 	if (!pll->params->defaults_set && pll->params->set_defaults)
762 		pll->params->set_defaults(pll);
763 
764 	_update_pll_mnp(pll, cfg);
765 
766 	if (pll->params->flags & TEGRA_PLL_HAS_CPCON)
767 		_update_pll_cpcon(pll, cfg, rate);
768 
769 	if (state) {
770 		_clk_pll_enable(hw);
771 		ret = clk_pll_wait_for_lock(pll);
772 		pll_clk_start_ss(pll);
773 	}
774 
775 	return ret;
776 }
777 
778 static int clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
779 			unsigned long parent_rate)
780 {
781 	struct tegra_clk_pll *pll = to_clk_pll(hw);
782 	struct tegra_clk_pll_freq_table cfg, old_cfg;
783 	unsigned long flags = 0;
784 	int ret = 0;
785 
786 	if (pll->params->flags & TEGRA_PLL_FIXED) {
787 		if (rate != pll->params->fixed_rate) {
788 			pr_err("%s: Can not change %s fixed rate %lu to %lu\n",
789 				__func__, clk_hw_get_name(hw),
790 				pll->params->fixed_rate, rate);
791 			return -EINVAL;
792 		}
793 		return 0;
794 	}
795 
796 	if (_get_table_rate(hw, &cfg, rate, parent_rate) &&
797 	    pll->params->calc_rate(hw, &cfg, rate, parent_rate)) {
798 		pr_err("%s: Failed to set %s rate %lu\n", __func__,
799 		       clk_hw_get_name(hw), rate);
800 		WARN_ON(1);
801 		return -EINVAL;
802 	}
803 	if (pll->lock)
804 		spin_lock_irqsave(pll->lock, flags);
805 
806 	_get_pll_mnp(pll, &old_cfg);
807 	if (pll->params->flags & TEGRA_PLL_VCO_OUT)
808 		cfg.p = old_cfg.p;
809 
810 	if (old_cfg.m != cfg.m || old_cfg.n != cfg.n || old_cfg.p != cfg.p ||
811 		old_cfg.sdm_data != cfg.sdm_data)
812 		ret = _program_pll(hw, &cfg, rate);
813 
814 	if (pll->lock)
815 		spin_unlock_irqrestore(pll->lock, flags);
816 
817 	return ret;
818 }
819 
820 static long clk_pll_round_rate(struct clk_hw *hw, unsigned long rate,
821 			unsigned long *prate)
822 {
823 	struct tegra_clk_pll *pll = to_clk_pll(hw);
824 	struct tegra_clk_pll_freq_table cfg;
825 
826 	if (pll->params->flags & TEGRA_PLL_FIXED) {
827 		/* PLLM/MB are used for memory; we do not change rate */
828 		if (pll->params->flags & (TEGRA_PLLM | TEGRA_PLLMB))
829 			return clk_hw_get_rate(hw);
830 		return pll->params->fixed_rate;
831 	}
832 
833 	if (_get_table_rate(hw, &cfg, rate, *prate) &&
834 	    pll->params->calc_rate(hw, &cfg, rate, *prate))
835 		return -EINVAL;
836 
837 	return cfg.output_rate;
838 }
839 
840 static unsigned long clk_pll_recalc_rate(struct clk_hw *hw,
841 					 unsigned long parent_rate)
842 {
843 	struct tegra_clk_pll *pll = to_clk_pll(hw);
844 	struct tegra_clk_pll_freq_table cfg;
845 	u32 val;
846 	u64 rate = parent_rate;
847 	int pdiv;
848 
849 	val = pll_readl_base(pll);
850 
851 	if ((pll->params->flags & TEGRA_PLL_BYPASS) && (val & PLL_BASE_BYPASS))
852 		return parent_rate;
853 
854 	if ((pll->params->flags & TEGRA_PLL_FIXED) &&
855 	    !(pll->params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) &&
856 			!(val & PLL_BASE_OVERRIDE)) {
857 		struct tegra_clk_pll_freq_table sel;
858 		if (_get_table_rate(hw, &sel, pll->params->fixed_rate,
859 					parent_rate)) {
860 			pr_err("Clock %s has unknown fixed frequency\n",
861 			       clk_hw_get_name(hw));
862 			BUG();
863 		}
864 		return pll->params->fixed_rate;
865 	}
866 
867 	_get_pll_mnp(pll, &cfg);
868 
869 	if (pll->params->flags & TEGRA_PLL_VCO_OUT) {
870 		pdiv = 1;
871 	} else {
872 		pdiv = _hw_to_p_div(hw, cfg.p);
873 		if (pdiv < 0) {
874 			WARN(1, "Clock %s has invalid pdiv value : 0x%x\n",
875 			     clk_hw_get_name(hw), cfg.p);
876 			pdiv = 1;
877 		}
878 	}
879 
880 	if (pll->params->set_gain)
881 		pll->params->set_gain(&cfg);
882 
883 	cfg.m *= pdiv;
884 
885 	rate *= cfg.n;
886 	do_div(rate, cfg.m);
887 
888 	return rate;
889 }
890 
891 static int clk_plle_training(struct tegra_clk_pll *pll)
892 {
893 	u32 val;
894 	unsigned long timeout;
895 
896 	if (!pll->pmc)
897 		return -ENOSYS;
898 
899 	/*
900 	 * PLLE is already disabled, and setup cleared;
901 	 * create falling edge on PLLE IDDQ input.
902 	 */
903 	val = readl(pll->pmc + PMC_SATA_PWRGT);
904 	val |= PMC_SATA_PWRGT_PLLE_IDDQ_VALUE;
905 	writel(val, pll->pmc + PMC_SATA_PWRGT);
906 
907 	val = readl(pll->pmc + PMC_SATA_PWRGT);
908 	val |= PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL;
909 	writel(val, pll->pmc + PMC_SATA_PWRGT);
910 
911 	val = readl(pll->pmc + PMC_SATA_PWRGT);
912 	val &= ~PMC_SATA_PWRGT_PLLE_IDDQ_VALUE;
913 	writel(val, pll->pmc + PMC_SATA_PWRGT);
914 
915 	val = pll_readl_misc(pll);
916 
917 	timeout = jiffies + msecs_to_jiffies(100);
918 	while (1) {
919 		val = pll_readl_misc(pll);
920 		if (val & PLLE_MISC_READY)
921 			break;
922 		if (time_after(jiffies, timeout)) {
923 			pr_err("%s: timeout waiting for PLLE\n", __func__);
924 			return -EBUSY;
925 		}
926 		udelay(300);
927 	}
928 
929 	return 0;
930 }
931 
932 static int clk_plle_enable(struct clk_hw *hw)
933 {
934 	struct tegra_clk_pll *pll = to_clk_pll(hw);
935 	struct tegra_clk_pll_freq_table sel;
936 	unsigned long input_rate;
937 	u32 val;
938 	int err;
939 
940 	if (clk_pll_is_enabled(hw))
941 		return 0;
942 
943 	input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
944 
945 	if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
946 		return -EINVAL;
947 
948 	clk_pll_disable(hw);
949 
950 	val = pll_readl_misc(pll);
951 	val &= ~(PLLE_MISC_LOCK_ENABLE | PLLE_MISC_SETUP_MASK);
952 	pll_writel_misc(val, pll);
953 
954 	val = pll_readl_misc(pll);
955 	if (!(val & PLLE_MISC_READY)) {
956 		err = clk_plle_training(pll);
957 		if (err)
958 			return err;
959 	}
960 
961 	if (pll->params->flags & TEGRA_PLLE_CONFIGURE) {
962 		/* configure dividers */
963 		val = pll_readl_base(pll);
964 		val &= ~(divp_mask_shifted(pll) | divn_mask_shifted(pll) |
965 			 divm_mask_shifted(pll));
966 		val &= ~(PLLE_BASE_DIVCML_MASK << PLLE_BASE_DIVCML_SHIFT);
967 		val |= sel.m << divm_shift(pll);
968 		val |= sel.n << divn_shift(pll);
969 		val |= sel.p << divp_shift(pll);
970 		val |= sel.cpcon << PLLE_BASE_DIVCML_SHIFT;
971 		pll_writel_base(val, pll);
972 	}
973 
974 	val = pll_readl_misc(pll);
975 	val |= PLLE_MISC_SETUP_VALUE;
976 	val |= PLLE_MISC_LOCK_ENABLE;
977 	pll_writel_misc(val, pll);
978 
979 	val = readl(pll->clk_base + PLLE_SS_CTRL);
980 	val &= ~PLLE_SS_COEFFICIENTS_MASK;
981 	val |= PLLE_SS_DISABLE;
982 	writel(val, pll->clk_base + PLLE_SS_CTRL);
983 
984 	val = pll_readl_base(pll);
985 	val |= (PLL_BASE_BYPASS | PLL_BASE_ENABLE);
986 	pll_writel_base(val, pll);
987 
988 	clk_pll_wait_for_lock(pll);
989 
990 	return 0;
991 }
992 
993 static unsigned long clk_plle_recalc_rate(struct clk_hw *hw,
994 					 unsigned long parent_rate)
995 {
996 	struct tegra_clk_pll *pll = to_clk_pll(hw);
997 	u32 val = pll_readl_base(pll);
998 	u32 divn = 0, divm = 0, divp = 0;
999 	u64 rate = parent_rate;
1000 
1001 	divp = (val >> pll->params->div_nmp->divp_shift) & (divp_mask(pll));
1002 	divn = (val >> pll->params->div_nmp->divn_shift) & (divn_mask(pll));
1003 	divm = (val >> pll->params->div_nmp->divm_shift) & (divm_mask(pll));
1004 	divm *= divp;
1005 
1006 	rate *= divn;
1007 	do_div(rate, divm);
1008 	return rate;
1009 }
1010 
1011 static void tegra_clk_pll_restore_context(struct clk_hw *hw)
1012 {
1013 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1014 	struct clk_hw *parent = clk_hw_get_parent(hw);
1015 	unsigned long parent_rate = clk_hw_get_rate(parent);
1016 	unsigned long rate = clk_hw_get_rate(hw);
1017 
1018 	if (clk_pll_is_enabled(hw))
1019 		return;
1020 
1021 	if (pll->params->set_defaults)
1022 		pll->params->set_defaults(pll);
1023 
1024 	clk_pll_set_rate(hw, rate, parent_rate);
1025 
1026 	if (!__clk_get_enable_count(hw->clk))
1027 		clk_pll_disable(hw);
1028 	else
1029 		clk_pll_enable(hw);
1030 }
1031 
1032 const struct clk_ops tegra_clk_pll_ops = {
1033 	.is_enabled = clk_pll_is_enabled,
1034 	.enable = clk_pll_enable,
1035 	.disable = clk_pll_disable,
1036 	.recalc_rate = clk_pll_recalc_rate,
1037 	.round_rate = clk_pll_round_rate,
1038 	.set_rate = clk_pll_set_rate,
1039 	.restore_context = tegra_clk_pll_restore_context,
1040 };
1041 
1042 const struct clk_ops tegra_clk_plle_ops = {
1043 	.recalc_rate = clk_plle_recalc_rate,
1044 	.is_enabled = clk_pll_is_enabled,
1045 	.disable = clk_pll_disable,
1046 	.enable = clk_plle_enable,
1047 };
1048 
1049 /*
1050  * Structure defining the fields for USB UTMI clocks Parameters.
1051  */
1052 struct utmi_clk_param {
1053 	/* Oscillator Frequency in Hz */
1054 	u32 osc_frequency;
1055 	/* UTMIP PLL Enable Delay Count  */
1056 	u8 enable_delay_count;
1057 	/* UTMIP PLL Stable count */
1058 	u8 stable_count;
1059 	/*  UTMIP PLL Active delay count */
1060 	u8 active_delay_count;
1061 	/* UTMIP PLL Xtal frequency count */
1062 	u8 xtal_freq_count;
1063 };
1064 
1065 static const struct utmi_clk_param utmi_parameters[] = {
1066 	{
1067 		.osc_frequency = 13000000, .enable_delay_count = 0x02,
1068 		.stable_count = 0x33, .active_delay_count = 0x05,
1069 		.xtal_freq_count = 0x7f
1070 	}, {
1071 		.osc_frequency = 19200000, .enable_delay_count = 0x03,
1072 		.stable_count = 0x4b, .active_delay_count = 0x06,
1073 		.xtal_freq_count = 0xbb
1074 	}, {
1075 		.osc_frequency = 12000000, .enable_delay_count = 0x02,
1076 		.stable_count = 0x2f, .active_delay_count = 0x04,
1077 		.xtal_freq_count = 0x76
1078 	}, {
1079 		.osc_frequency = 26000000, .enable_delay_count = 0x04,
1080 		.stable_count = 0x66, .active_delay_count = 0x09,
1081 		.xtal_freq_count = 0xfe
1082 	}, {
1083 		.osc_frequency = 16800000, .enable_delay_count = 0x03,
1084 		.stable_count = 0x41, .active_delay_count = 0x0a,
1085 		.xtal_freq_count = 0xa4
1086 	}, {
1087 		.osc_frequency = 38400000, .enable_delay_count = 0x0,
1088 		.stable_count = 0x0, .active_delay_count = 0x6,
1089 		.xtal_freq_count = 0x80
1090 	},
1091 };
1092 
1093 static int clk_pllu_enable(struct clk_hw *hw)
1094 {
1095 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1096 	struct clk_hw *pll_ref = clk_hw_get_parent(hw);
1097 	struct clk_hw *osc = clk_hw_get_parent(pll_ref);
1098 	const struct utmi_clk_param *params = NULL;
1099 	unsigned long flags = 0, input_rate;
1100 	unsigned int i;
1101 	int ret = 0;
1102 	u32 value;
1103 
1104 	if (!osc) {
1105 		pr_err("%s: failed to get OSC clock\n", __func__);
1106 		return -EINVAL;
1107 	}
1108 
1109 	input_rate = clk_hw_get_rate(osc);
1110 
1111 	if (pll->lock)
1112 		spin_lock_irqsave(pll->lock, flags);
1113 
1114 	_clk_pll_enable(hw);
1115 
1116 	ret = clk_pll_wait_for_lock(pll);
1117 	if (ret < 0)
1118 		goto out;
1119 
1120 	for (i = 0; i < ARRAY_SIZE(utmi_parameters); i++) {
1121 		if (input_rate == utmi_parameters[i].osc_frequency) {
1122 			params = &utmi_parameters[i];
1123 			break;
1124 		}
1125 	}
1126 
1127 	if (!params) {
1128 		pr_err("%s: unexpected input rate %lu Hz\n", __func__,
1129 		       input_rate);
1130 		ret = -EINVAL;
1131 		goto out;
1132 	}
1133 
1134 	value = pll_readl_base(pll);
1135 	value &= ~PLLU_BASE_OVERRIDE;
1136 	pll_writel_base(value, pll);
1137 
1138 	value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG2);
1139 	/* Program UTMIP PLL stable and active counts */
1140 	value &= ~UTMIP_PLL_CFG2_STABLE_COUNT(~0);
1141 	value |= UTMIP_PLL_CFG2_STABLE_COUNT(params->stable_count);
1142 	value &= ~UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(~0);
1143 	value |= UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(params->active_delay_count);
1144 	/* Remove power downs from UTMIP PLL control bits */
1145 	value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN;
1146 	value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN;
1147 	value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN;
1148 	writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG2);
1149 
1150 	value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG1);
1151 	/* Program UTMIP PLL delay and oscillator frequency counts */
1152 	value &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0);
1153 	value |= UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(params->enable_delay_count);
1154 	value &= ~UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(~0);
1155 	value |= UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(params->xtal_freq_count);
1156 	/* Remove power downs from UTMIP PLL control bits */
1157 	value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN;
1158 	value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN;
1159 	value &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN;
1160 	writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG1);
1161 
1162 out:
1163 	if (pll->lock)
1164 		spin_unlock_irqrestore(pll->lock, flags);
1165 
1166 	return ret;
1167 }
1168 
1169 static const struct clk_ops tegra_clk_pllu_ops = {
1170 	.is_enabled = clk_pll_is_enabled,
1171 	.enable = clk_pllu_enable,
1172 	.disable = clk_pll_disable,
1173 	.recalc_rate = clk_pll_recalc_rate,
1174 	.round_rate = clk_pll_round_rate,
1175 	.set_rate = clk_pll_set_rate,
1176 };
1177 
1178 static int _pll_fixed_mdiv(struct tegra_clk_pll_params *pll_params,
1179 			   unsigned long parent_rate)
1180 {
1181 	u16 mdiv = parent_rate / pll_params->cf_min;
1182 
1183 	if (pll_params->flags & TEGRA_MDIV_NEW)
1184 		return (!pll_params->mdiv_default ? mdiv :
1185 			min(mdiv, pll_params->mdiv_default));
1186 
1187 	if (pll_params->mdiv_default)
1188 		return pll_params->mdiv_default;
1189 
1190 	if (parent_rate > pll_params->cf_max)
1191 		return 2;
1192 	else
1193 		return 1;
1194 }
1195 
1196 static int _calc_dynamic_ramp_rate(struct clk_hw *hw,
1197 				struct tegra_clk_pll_freq_table *cfg,
1198 				unsigned long rate, unsigned long parent_rate)
1199 {
1200 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1201 	unsigned int p;
1202 	int p_div;
1203 
1204 	if (!rate)
1205 		return -EINVAL;
1206 
1207 	p = DIV_ROUND_UP(pll->params->vco_min, rate);
1208 	cfg->m = _pll_fixed_mdiv(pll->params, parent_rate);
1209 	cfg->output_rate = rate * p;
1210 	cfg->n = cfg->output_rate * cfg->m / parent_rate;
1211 	cfg->input_rate = parent_rate;
1212 
1213 	p_div = _p_div_to_hw(hw, p);
1214 	if (p_div < 0)
1215 		return p_div;
1216 
1217 	cfg->p = p_div;
1218 
1219 	if (cfg->n > divn_max(pll) || cfg->output_rate > pll->params->vco_max)
1220 		return -EINVAL;
1221 
1222 	return 0;
1223 }
1224 
1225 #if defined(CONFIG_ARCH_TEGRA_114_SOC) || \
1226 	defined(CONFIG_ARCH_TEGRA_124_SOC) || \
1227 	defined(CONFIG_ARCH_TEGRA_132_SOC) || \
1228 	defined(CONFIG_ARCH_TEGRA_210_SOC)
1229 
1230 u16 tegra_pll_get_fixed_mdiv(struct clk_hw *hw, unsigned long input_rate)
1231 {
1232 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1233 
1234 	return (u16)_pll_fixed_mdiv(pll->params, input_rate);
1235 }
1236 
1237 static unsigned long _clip_vco_min(unsigned long vco_min,
1238 				   unsigned long parent_rate)
1239 {
1240 	return DIV_ROUND_UP(vco_min, parent_rate) * parent_rate;
1241 }
1242 
1243 static int _setup_dynamic_ramp(struct tegra_clk_pll_params *pll_params,
1244 			       void __iomem *clk_base,
1245 			       unsigned long parent_rate)
1246 {
1247 	u32 val;
1248 	u32 step_a, step_b;
1249 
1250 	switch (parent_rate) {
1251 	case 12000000:
1252 	case 13000000:
1253 	case 26000000:
1254 		step_a = 0x2B;
1255 		step_b = 0x0B;
1256 		break;
1257 	case 16800000:
1258 		step_a = 0x1A;
1259 		step_b = 0x09;
1260 		break;
1261 	case 19200000:
1262 		step_a = 0x12;
1263 		step_b = 0x08;
1264 		break;
1265 	default:
1266 		pr_err("%s: Unexpected reference rate %lu\n",
1267 			__func__, parent_rate);
1268 		WARN_ON(1);
1269 		return -EINVAL;
1270 	}
1271 
1272 	val = step_a << pll_params->stepa_shift;
1273 	val |= step_b << pll_params->stepb_shift;
1274 	writel_relaxed(val, clk_base + pll_params->dyn_ramp_reg);
1275 
1276 	return 0;
1277 }
1278 
1279 static int _pll_ramp_calc_pll(struct clk_hw *hw,
1280 			      struct tegra_clk_pll_freq_table *cfg,
1281 			      unsigned long rate, unsigned long parent_rate)
1282 {
1283 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1284 	int err = 0;
1285 
1286 	err = _get_table_rate(hw, cfg, rate, parent_rate);
1287 	if (err < 0)
1288 		err = _calc_dynamic_ramp_rate(hw, cfg, rate, parent_rate);
1289 	else {
1290 		if (cfg->m != _pll_fixed_mdiv(pll->params, parent_rate)) {
1291 			WARN_ON(1);
1292 			err = -EINVAL;
1293 			goto out;
1294 		}
1295 	}
1296 
1297 	if (cfg->p >  pll->params->max_p)
1298 		err = -EINVAL;
1299 
1300 out:
1301 	return err;
1302 }
1303 
1304 static int clk_pllxc_set_rate(struct clk_hw *hw, unsigned long rate,
1305 				unsigned long parent_rate)
1306 {
1307 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1308 	struct tegra_clk_pll_freq_table cfg, old_cfg;
1309 	unsigned long flags = 0;
1310 	int ret;
1311 
1312 	ret = _pll_ramp_calc_pll(hw, &cfg, rate, parent_rate);
1313 	if (ret < 0)
1314 		return ret;
1315 
1316 	if (pll->lock)
1317 		spin_lock_irqsave(pll->lock, flags);
1318 
1319 	_get_pll_mnp(pll, &old_cfg);
1320 	if (pll->params->flags & TEGRA_PLL_VCO_OUT)
1321 		cfg.p = old_cfg.p;
1322 
1323 	if (old_cfg.m != cfg.m || old_cfg.n != cfg.n || old_cfg.p != cfg.p)
1324 		ret = _program_pll(hw, &cfg, rate);
1325 
1326 	if (pll->lock)
1327 		spin_unlock_irqrestore(pll->lock, flags);
1328 
1329 	return ret;
1330 }
1331 
1332 static long clk_pll_ramp_round_rate(struct clk_hw *hw, unsigned long rate,
1333 				unsigned long *prate)
1334 {
1335 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1336 	struct tegra_clk_pll_freq_table cfg;
1337 	int ret, p_div;
1338 	u64 output_rate = *prate;
1339 
1340 	ret = _pll_ramp_calc_pll(hw, &cfg, rate, *prate);
1341 	if (ret < 0)
1342 		return ret;
1343 
1344 	p_div = _hw_to_p_div(hw, cfg.p);
1345 	if (p_div < 0)
1346 		return p_div;
1347 
1348 	if (pll->params->set_gain)
1349 		pll->params->set_gain(&cfg);
1350 
1351 	output_rate *= cfg.n;
1352 	do_div(output_rate, cfg.m * p_div);
1353 
1354 	return output_rate;
1355 }
1356 
1357 static void _pllcx_strobe(struct tegra_clk_pll *pll)
1358 {
1359 	u32 val;
1360 
1361 	val = pll_readl_misc(pll);
1362 	val |= PLLCX_MISC_STROBE;
1363 	pll_writel_misc(val, pll);
1364 	udelay(2);
1365 
1366 	val &= ~PLLCX_MISC_STROBE;
1367 	pll_writel_misc(val, pll);
1368 }
1369 
1370 static int clk_pllc_enable(struct clk_hw *hw)
1371 {
1372 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1373 	u32 val;
1374 	int ret;
1375 	unsigned long flags = 0;
1376 
1377 	if (clk_pll_is_enabled(hw))
1378 		return 0;
1379 
1380 	if (pll->lock)
1381 		spin_lock_irqsave(pll->lock, flags);
1382 
1383 	_clk_pll_enable(hw);
1384 	udelay(2);
1385 
1386 	val = pll_readl_misc(pll);
1387 	val &= ~PLLCX_MISC_RESET;
1388 	pll_writel_misc(val, pll);
1389 	udelay(2);
1390 
1391 	_pllcx_strobe(pll);
1392 
1393 	ret = clk_pll_wait_for_lock(pll);
1394 
1395 	if (pll->lock)
1396 		spin_unlock_irqrestore(pll->lock, flags);
1397 
1398 	return ret;
1399 }
1400 
1401 static void _clk_pllc_disable(struct clk_hw *hw)
1402 {
1403 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1404 	u32 val;
1405 
1406 	_clk_pll_disable(hw);
1407 
1408 	val = pll_readl_misc(pll);
1409 	val |= PLLCX_MISC_RESET;
1410 	pll_writel_misc(val, pll);
1411 	udelay(2);
1412 }
1413 
1414 static void clk_pllc_disable(struct clk_hw *hw)
1415 {
1416 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1417 	unsigned long flags = 0;
1418 
1419 	if (pll->lock)
1420 		spin_lock_irqsave(pll->lock, flags);
1421 
1422 	_clk_pllc_disable(hw);
1423 
1424 	if (pll->lock)
1425 		spin_unlock_irqrestore(pll->lock, flags);
1426 }
1427 
1428 static int _pllcx_update_dynamic_coef(struct tegra_clk_pll *pll,
1429 					unsigned long input_rate, u32 n)
1430 {
1431 	u32 val, n_threshold;
1432 
1433 	switch (input_rate) {
1434 	case 12000000:
1435 		n_threshold = 70;
1436 		break;
1437 	case 13000000:
1438 	case 26000000:
1439 		n_threshold = 71;
1440 		break;
1441 	case 16800000:
1442 		n_threshold = 55;
1443 		break;
1444 	case 19200000:
1445 		n_threshold = 48;
1446 		break;
1447 	default:
1448 		pr_err("%s: Unexpected reference rate %lu\n",
1449 			__func__, input_rate);
1450 		return -EINVAL;
1451 	}
1452 
1453 	val = pll_readl_misc(pll);
1454 	val &= ~(PLLCX_MISC_SDM_DIV_MASK | PLLCX_MISC_FILT_DIV_MASK);
1455 	val |= n <= n_threshold ?
1456 		PLLCX_MISC_DIV_LOW_RANGE : PLLCX_MISC_DIV_HIGH_RANGE;
1457 	pll_writel_misc(val, pll);
1458 
1459 	return 0;
1460 }
1461 
1462 static int clk_pllc_set_rate(struct clk_hw *hw, unsigned long rate,
1463 				unsigned long parent_rate)
1464 {
1465 	struct tegra_clk_pll_freq_table cfg, old_cfg;
1466 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1467 	unsigned long flags = 0;
1468 	int state, ret = 0;
1469 
1470 	if (pll->lock)
1471 		spin_lock_irqsave(pll->lock, flags);
1472 
1473 	ret = _pll_ramp_calc_pll(hw, &cfg, rate, parent_rate);
1474 	if (ret < 0)
1475 		goto out;
1476 
1477 	_get_pll_mnp(pll, &old_cfg);
1478 
1479 	if (cfg.m != old_cfg.m) {
1480 		WARN_ON(1);
1481 		goto out;
1482 	}
1483 
1484 	if (old_cfg.n == cfg.n && old_cfg.p == cfg.p)
1485 		goto out;
1486 
1487 	state = clk_pll_is_enabled(hw);
1488 	if (state)
1489 		_clk_pllc_disable(hw);
1490 
1491 	ret = _pllcx_update_dynamic_coef(pll, parent_rate, cfg.n);
1492 	if (ret < 0)
1493 		goto out;
1494 
1495 	_update_pll_mnp(pll, &cfg);
1496 
1497 	if (state)
1498 		ret = clk_pllc_enable(hw);
1499 
1500 out:
1501 	if (pll->lock)
1502 		spin_unlock_irqrestore(pll->lock, flags);
1503 
1504 	return ret;
1505 }
1506 
1507 static long _pllre_calc_rate(struct tegra_clk_pll *pll,
1508 			     struct tegra_clk_pll_freq_table *cfg,
1509 			     unsigned long rate, unsigned long parent_rate)
1510 {
1511 	u16 m, n;
1512 	u64 output_rate = parent_rate;
1513 
1514 	m = _pll_fixed_mdiv(pll->params, parent_rate);
1515 	n = rate * m / parent_rate;
1516 
1517 	output_rate *= n;
1518 	do_div(output_rate, m);
1519 
1520 	if (cfg) {
1521 		cfg->m = m;
1522 		cfg->n = n;
1523 	}
1524 
1525 	return output_rate;
1526 }
1527 
1528 static int clk_pllre_set_rate(struct clk_hw *hw, unsigned long rate,
1529 				unsigned long parent_rate)
1530 {
1531 	struct tegra_clk_pll_freq_table cfg, old_cfg;
1532 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1533 	unsigned long flags = 0;
1534 	int state, ret = 0;
1535 
1536 	if (pll->lock)
1537 		spin_lock_irqsave(pll->lock, flags);
1538 
1539 	_pllre_calc_rate(pll, &cfg, rate, parent_rate);
1540 	_get_pll_mnp(pll, &old_cfg);
1541 	cfg.p = old_cfg.p;
1542 
1543 	if (cfg.m != old_cfg.m || cfg.n != old_cfg.n) {
1544 		state = clk_pll_is_enabled(hw);
1545 		if (state)
1546 			_clk_pll_disable(hw);
1547 
1548 		_update_pll_mnp(pll, &cfg);
1549 
1550 		if (state) {
1551 			_clk_pll_enable(hw);
1552 			ret = clk_pll_wait_for_lock(pll);
1553 		}
1554 	}
1555 
1556 	if (pll->lock)
1557 		spin_unlock_irqrestore(pll->lock, flags);
1558 
1559 	return ret;
1560 }
1561 
1562 static unsigned long clk_pllre_recalc_rate(struct clk_hw *hw,
1563 					 unsigned long parent_rate)
1564 {
1565 	struct tegra_clk_pll_freq_table cfg;
1566 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1567 	u64 rate = parent_rate;
1568 
1569 	_get_pll_mnp(pll, &cfg);
1570 
1571 	rate *= cfg.n;
1572 	do_div(rate, cfg.m);
1573 
1574 	return rate;
1575 }
1576 
1577 static long clk_pllre_round_rate(struct clk_hw *hw, unsigned long rate,
1578 				 unsigned long *prate)
1579 {
1580 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1581 
1582 	return _pllre_calc_rate(pll, NULL, rate, *prate);
1583 }
1584 
1585 static int clk_plle_tegra114_enable(struct clk_hw *hw)
1586 {
1587 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1588 	struct tegra_clk_pll_freq_table sel;
1589 	u32 val;
1590 	int ret;
1591 	unsigned long flags = 0;
1592 	unsigned long input_rate;
1593 
1594 	if (clk_pll_is_enabled(hw))
1595 		return 0;
1596 
1597 	input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
1598 
1599 	if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
1600 		return -EINVAL;
1601 
1602 	if (pll->lock)
1603 		spin_lock_irqsave(pll->lock, flags);
1604 
1605 	val = pll_readl_base(pll);
1606 	val &= ~BIT(29); /* Disable lock override */
1607 	pll_writel_base(val, pll);
1608 
1609 	val = pll_readl(pll->params->aux_reg, pll);
1610 	val |= PLLE_AUX_ENABLE_SWCTL;
1611 	val &= ~PLLE_AUX_SEQ_ENABLE;
1612 	pll_writel(val, pll->params->aux_reg, pll);
1613 	udelay(1);
1614 
1615 	val = pll_readl_misc(pll);
1616 	val |= PLLE_MISC_LOCK_ENABLE;
1617 	val |= PLLE_MISC_IDDQ_SW_CTRL;
1618 	val &= ~PLLE_MISC_IDDQ_SW_VALUE;
1619 	val |= PLLE_MISC_PLLE_PTS;
1620 	val &= ~(PLLE_MISC_VREG_BG_CTRL_MASK | PLLE_MISC_VREG_CTRL_MASK);
1621 	pll_writel_misc(val, pll);
1622 	udelay(5);
1623 
1624 	val = pll_readl(PLLE_SS_CTRL, pll);
1625 	val |= PLLE_SS_DISABLE;
1626 	pll_writel(val, PLLE_SS_CTRL, pll);
1627 
1628 	val = pll_readl_base(pll);
1629 	val &= ~(divp_mask_shifted(pll) | divn_mask_shifted(pll) |
1630 		 divm_mask_shifted(pll));
1631 	val &= ~(PLLE_BASE_DIVCML_MASK << PLLE_BASE_DIVCML_SHIFT);
1632 	val |= sel.m << divm_shift(pll);
1633 	val |= sel.n << divn_shift(pll);
1634 	val |= sel.cpcon << PLLE_BASE_DIVCML_SHIFT;
1635 	pll_writel_base(val, pll);
1636 	udelay(1);
1637 
1638 	_clk_pll_enable(hw);
1639 	ret = clk_pll_wait_for_lock(pll);
1640 
1641 	if (ret < 0)
1642 		goto out;
1643 
1644 	val = pll_readl(PLLE_SS_CTRL, pll);
1645 	val &= ~(PLLE_SS_CNTL_CENTER | PLLE_SS_CNTL_INVERT);
1646 	val &= ~PLLE_SS_COEFFICIENTS_MASK;
1647 	val |= PLLE_SS_COEFFICIENTS_VAL_TEGRA114;
1648 	pll_writel(val, PLLE_SS_CTRL, pll);
1649 	val &= ~(PLLE_SS_CNTL_SSC_BYP | PLLE_SS_CNTL_BYPASS_SS);
1650 	pll_writel(val, PLLE_SS_CTRL, pll);
1651 	udelay(1);
1652 	val &= ~PLLE_SS_CNTL_INTERP_RESET;
1653 	pll_writel(val, PLLE_SS_CTRL, pll);
1654 	udelay(1);
1655 
1656 	/* Enable hw control of xusb brick pll */
1657 	val = pll_readl_misc(pll);
1658 	val &= ~PLLE_MISC_IDDQ_SW_CTRL;
1659 	pll_writel_misc(val, pll);
1660 
1661 	val = pll_readl(pll->params->aux_reg, pll);
1662 	val |= (PLLE_AUX_USE_LOCKDET | PLLE_AUX_SEQ_START_STATE);
1663 	val &= ~(PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL);
1664 	pll_writel(val, pll->params->aux_reg, pll);
1665 	udelay(1);
1666 	val |= PLLE_AUX_SEQ_ENABLE;
1667 	pll_writel(val, pll->params->aux_reg, pll);
1668 
1669 	val = pll_readl(XUSBIO_PLL_CFG0, pll);
1670 	val |= (XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET |
1671 		XUSBIO_PLL_CFG0_SEQ_START_STATE);
1672 	val &= ~(XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL |
1673 		 XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL);
1674 	pll_writel(val, XUSBIO_PLL_CFG0, pll);
1675 	udelay(1);
1676 	val |= XUSBIO_PLL_CFG0_SEQ_ENABLE;
1677 	pll_writel(val, XUSBIO_PLL_CFG0, pll);
1678 
1679 	/* Enable hw control of SATA pll */
1680 	val = pll_readl(SATA_PLL_CFG0, pll);
1681 	val &= ~SATA_PLL_CFG0_PADPLL_RESET_SWCTL;
1682 	val |= SATA_PLL_CFG0_PADPLL_USE_LOCKDET;
1683 	val |= SATA_PLL_CFG0_SEQ_START_STATE;
1684 	pll_writel(val, SATA_PLL_CFG0, pll);
1685 
1686 	udelay(1);
1687 
1688 	val = pll_readl(SATA_PLL_CFG0, pll);
1689 	val |= SATA_PLL_CFG0_SEQ_ENABLE;
1690 	pll_writel(val, SATA_PLL_CFG0, pll);
1691 
1692 out:
1693 	if (pll->lock)
1694 		spin_unlock_irqrestore(pll->lock, flags);
1695 
1696 	return ret;
1697 }
1698 
1699 static void clk_plle_tegra114_disable(struct clk_hw *hw)
1700 {
1701 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1702 	unsigned long flags = 0;
1703 	u32 val;
1704 
1705 	if (pll->lock)
1706 		spin_lock_irqsave(pll->lock, flags);
1707 
1708 	_clk_pll_disable(hw);
1709 
1710 	val = pll_readl_misc(pll);
1711 	val |= PLLE_MISC_IDDQ_SW_CTRL | PLLE_MISC_IDDQ_SW_VALUE;
1712 	pll_writel_misc(val, pll);
1713 	udelay(1);
1714 
1715 	if (pll->lock)
1716 		spin_unlock_irqrestore(pll->lock, flags);
1717 }
1718 
1719 static int clk_pllu_tegra114_enable(struct clk_hw *hw)
1720 {
1721 	struct tegra_clk_pll *pll = to_clk_pll(hw);
1722 	const struct utmi_clk_param *params = NULL;
1723 	struct clk *osc = __clk_lookup("osc");
1724 	unsigned long flags = 0, input_rate;
1725 	unsigned int i;
1726 	int ret = 0;
1727 	u32 value;
1728 
1729 	if (!osc) {
1730 		pr_err("%s: failed to get OSC clock\n", __func__);
1731 		return -EINVAL;
1732 	}
1733 
1734 	if (clk_pll_is_enabled(hw))
1735 		return 0;
1736 
1737 	input_rate = clk_hw_get_rate(__clk_get_hw(osc));
1738 
1739 	if (pll->lock)
1740 		spin_lock_irqsave(pll->lock, flags);
1741 
1742 	_clk_pll_enable(hw);
1743 
1744 	ret = clk_pll_wait_for_lock(pll);
1745 	if (ret < 0)
1746 		goto out;
1747 
1748 	for (i = 0; i < ARRAY_SIZE(utmi_parameters); i++) {
1749 		if (input_rate == utmi_parameters[i].osc_frequency) {
1750 			params = &utmi_parameters[i];
1751 			break;
1752 		}
1753 	}
1754 
1755 	if (!params) {
1756 		pr_err("%s: unexpected input rate %lu Hz\n", __func__,
1757 		       input_rate);
1758 		ret = -EINVAL;
1759 		goto out;
1760 	}
1761 
1762 	value = pll_readl_base(pll);
1763 	value &= ~PLLU_BASE_OVERRIDE;
1764 	pll_writel_base(value, pll);
1765 
1766 	value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG2);
1767 	/* Program UTMIP PLL stable and active counts */
1768 	value &= ~UTMIP_PLL_CFG2_STABLE_COUNT(~0);
1769 	value |= UTMIP_PLL_CFG2_STABLE_COUNT(params->stable_count);
1770 	value &= ~UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(~0);
1771 	value |= UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(params->active_delay_count);
1772 	/* Remove power downs from UTMIP PLL control bits */
1773 	value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN;
1774 	value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN;
1775 	value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN;
1776 	writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG2);
1777 
1778 	value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG1);
1779 	/* Program UTMIP PLL delay and oscillator frequency counts */
1780 	value &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0);
1781 	value |= UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(params->enable_delay_count);
1782 	value &= ~UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(~0);
1783 	value |= UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(params->xtal_freq_count);
1784 	/* Remove power downs from UTMIP PLL control bits */
1785 	value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN;
1786 	value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN;
1787 	value &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERUP;
1788 	value &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN;
1789 	writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG1);
1790 
1791 	/* Setup HW control of UTMIPLL */
1792 	value = readl_relaxed(pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1793 	value |= UTMIPLL_HW_PWRDN_CFG0_USE_LOCKDET;
1794 	value &= ~UTMIPLL_HW_PWRDN_CFG0_CLK_ENABLE_SWCTL;
1795 	value |= UTMIPLL_HW_PWRDN_CFG0_SEQ_START_STATE;
1796 	writel_relaxed(value, pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1797 
1798 	value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG1);
1799 	value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERUP;
1800 	value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN;
1801 	writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG1);
1802 
1803 	udelay(1);
1804 
1805 	/*
1806 	 * Setup SW override of UTMIPLL assuming USB2.0 ports are assigned
1807 	 * to USB2
1808 	 */
1809 	value = readl_relaxed(pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1810 	value |= UTMIPLL_HW_PWRDN_CFG0_IDDQ_SWCTL;
1811 	value &= ~UTMIPLL_HW_PWRDN_CFG0_IDDQ_OVERRIDE;
1812 	writel_relaxed(value, pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1813 
1814 	udelay(1);
1815 
1816 	/* Enable HW control of UTMIPLL */
1817 	value = readl_relaxed(pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1818 	value |= UTMIPLL_HW_PWRDN_CFG0_SEQ_ENABLE;
1819 	writel_relaxed(value, pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1820 
1821 out:
1822 	if (pll->lock)
1823 		spin_unlock_irqrestore(pll->lock, flags);
1824 
1825 	return ret;
1826 }
1827 
1828 static void _clk_plle_tegra_init_parent(struct tegra_clk_pll *pll)
1829 {
1830 	u32 val, val_aux;
1831 
1832 	/* ensure parent is set to pll_ref */
1833 	val = pll_readl_base(pll);
1834 	val_aux = pll_readl(pll->params->aux_reg, pll);
1835 
1836 	if (val & PLL_BASE_ENABLE) {
1837 		if ((val_aux & PLLE_AUX_PLLRE_SEL) ||
1838 		    (val_aux & PLLE_AUX_PLLP_SEL))
1839 			WARN(1, "pll_e enabled with unsupported parent %s\n",
1840 			     (val_aux & PLLE_AUX_PLLP_SEL) ? "pllp_out0" :
1841 			     "pll_re_vco");
1842 	} else {
1843 		val_aux &= ~(PLLE_AUX_PLLRE_SEL | PLLE_AUX_PLLP_SEL);
1844 		pll_writel(val_aux, pll->params->aux_reg, pll);
1845 		fence_udelay(1, pll->clk_base);
1846 	}
1847 }
1848 #endif
1849 
1850 static struct tegra_clk_pll *_tegra_init_pll(void __iomem *clk_base,
1851 		void __iomem *pmc, struct tegra_clk_pll_params *pll_params,
1852 		spinlock_t *lock)
1853 {
1854 	struct tegra_clk_pll *pll;
1855 
1856 	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
1857 	if (!pll)
1858 		return ERR_PTR(-ENOMEM);
1859 
1860 	pll->clk_base = clk_base;
1861 	pll->pmc = pmc;
1862 
1863 	pll->params = pll_params;
1864 	pll->lock = lock;
1865 
1866 	if (!pll_params->div_nmp)
1867 		pll_params->div_nmp = &default_nmp;
1868 
1869 	return pll;
1870 }
1871 
1872 static struct clk *_tegra_clk_register_pll(struct tegra_clk_pll *pll,
1873 		const char *name, const char *parent_name, unsigned long flags,
1874 		const struct clk_ops *ops)
1875 {
1876 	struct clk_init_data init;
1877 
1878 	init.name = name;
1879 	init.ops = ops;
1880 	init.flags = flags;
1881 	init.parent_names = (parent_name ? &parent_name : NULL);
1882 	init.num_parents = (parent_name ? 1 : 0);
1883 
1884 	/* Default to _calc_rate if unspecified */
1885 	if (!pll->params->calc_rate) {
1886 		if (pll->params->flags & TEGRA_PLLM)
1887 			pll->params->calc_rate = _calc_dynamic_ramp_rate;
1888 		else
1889 			pll->params->calc_rate = _calc_rate;
1890 	}
1891 
1892 	if (pll->params->set_defaults)
1893 		pll->params->set_defaults(pll);
1894 
1895 	/* Data in .init is copied by clk_register(), so stack variable OK */
1896 	pll->hw.init = &init;
1897 
1898 	return clk_register(NULL, &pll->hw);
1899 }
1900 
1901 struct clk *tegra_clk_register_pll(const char *name, const char *parent_name,
1902 		void __iomem *clk_base, void __iomem *pmc,
1903 		unsigned long flags, struct tegra_clk_pll_params *pll_params,
1904 		spinlock_t *lock)
1905 {
1906 	struct tegra_clk_pll *pll;
1907 	struct clk *clk;
1908 
1909 	pll_params->flags |= TEGRA_PLL_BYPASS;
1910 
1911 	pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
1912 	if (IS_ERR(pll))
1913 		return ERR_CAST(pll);
1914 
1915 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
1916 				      &tegra_clk_pll_ops);
1917 	if (IS_ERR(clk))
1918 		kfree(pll);
1919 
1920 	return clk;
1921 }
1922 
1923 static struct div_nmp pll_e_nmp = {
1924 	.divn_shift = PLLE_BASE_DIVN_SHIFT,
1925 	.divn_width = PLLE_BASE_DIVN_WIDTH,
1926 	.divm_shift = PLLE_BASE_DIVM_SHIFT,
1927 	.divm_width = PLLE_BASE_DIVM_WIDTH,
1928 	.divp_shift = PLLE_BASE_DIVP_SHIFT,
1929 	.divp_width = PLLE_BASE_DIVP_WIDTH,
1930 };
1931 
1932 struct clk *tegra_clk_register_plle(const char *name, const char *parent_name,
1933 		void __iomem *clk_base, void __iomem *pmc,
1934 		unsigned long flags, struct tegra_clk_pll_params *pll_params,
1935 		spinlock_t *lock)
1936 {
1937 	struct tegra_clk_pll *pll;
1938 	struct clk *clk;
1939 
1940 	pll_params->flags |= TEGRA_PLL_BYPASS;
1941 
1942 	if (!pll_params->div_nmp)
1943 		pll_params->div_nmp = &pll_e_nmp;
1944 
1945 	pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
1946 	if (IS_ERR(pll))
1947 		return ERR_CAST(pll);
1948 
1949 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
1950 				      &tegra_clk_plle_ops);
1951 	if (IS_ERR(clk))
1952 		kfree(pll);
1953 
1954 	return clk;
1955 }
1956 
1957 struct clk *tegra_clk_register_pllu(const char *name, const char *parent_name,
1958 		void __iomem *clk_base, unsigned long flags,
1959 		struct tegra_clk_pll_params *pll_params, spinlock_t *lock)
1960 {
1961 	struct tegra_clk_pll *pll;
1962 	struct clk *clk;
1963 
1964 	pll_params->flags |= TEGRA_PLLU;
1965 
1966 	pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
1967 	if (IS_ERR(pll))
1968 		return ERR_CAST(pll);
1969 
1970 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
1971 				      &tegra_clk_pllu_ops);
1972 	if (IS_ERR(clk))
1973 		kfree(pll);
1974 
1975 	return clk;
1976 }
1977 
1978 #if defined(CONFIG_ARCH_TEGRA_114_SOC) || \
1979 	defined(CONFIG_ARCH_TEGRA_124_SOC) || \
1980 	defined(CONFIG_ARCH_TEGRA_132_SOC) || \
1981 	defined(CONFIG_ARCH_TEGRA_210_SOC)
1982 static const struct clk_ops tegra_clk_pllxc_ops = {
1983 	.is_enabled = clk_pll_is_enabled,
1984 	.enable = clk_pll_enable,
1985 	.disable = clk_pll_disable,
1986 	.recalc_rate = clk_pll_recalc_rate,
1987 	.round_rate = clk_pll_ramp_round_rate,
1988 	.set_rate = clk_pllxc_set_rate,
1989 };
1990 
1991 static const struct clk_ops tegra_clk_pllc_ops = {
1992 	.is_enabled = clk_pll_is_enabled,
1993 	.enable = clk_pllc_enable,
1994 	.disable = clk_pllc_disable,
1995 	.recalc_rate = clk_pll_recalc_rate,
1996 	.round_rate = clk_pll_ramp_round_rate,
1997 	.set_rate = clk_pllc_set_rate,
1998 };
1999 
2000 static const struct clk_ops tegra_clk_pllre_ops = {
2001 	.is_enabled = clk_pll_is_enabled,
2002 	.enable = clk_pll_enable,
2003 	.disable = clk_pll_disable,
2004 	.recalc_rate = clk_pllre_recalc_rate,
2005 	.round_rate = clk_pllre_round_rate,
2006 	.set_rate = clk_pllre_set_rate,
2007 };
2008 
2009 static const struct clk_ops tegra_clk_plle_tegra114_ops = {
2010 	.is_enabled =  clk_pll_is_enabled,
2011 	.enable = clk_plle_tegra114_enable,
2012 	.disable = clk_plle_tegra114_disable,
2013 	.recalc_rate = clk_pll_recalc_rate,
2014 };
2015 
2016 static const struct clk_ops tegra_clk_pllu_tegra114_ops = {
2017 	.is_enabled =  clk_pll_is_enabled,
2018 	.enable = clk_pllu_tegra114_enable,
2019 	.disable = clk_pll_disable,
2020 	.recalc_rate = clk_pll_recalc_rate,
2021 };
2022 
2023 struct clk *tegra_clk_register_pllxc(const char *name, const char *parent_name,
2024 			  void __iomem *clk_base, void __iomem *pmc,
2025 			  unsigned long flags,
2026 			  struct tegra_clk_pll_params *pll_params,
2027 			  spinlock_t *lock)
2028 {
2029 	struct tegra_clk_pll *pll;
2030 	struct clk *clk, *parent;
2031 	unsigned long parent_rate;
2032 	u32 val, val_iddq;
2033 
2034 	parent = __clk_lookup(parent_name);
2035 	if (!parent) {
2036 		WARN(1, "parent clk %s of %s must be registered first\n",
2037 			parent_name, name);
2038 		return ERR_PTR(-EINVAL);
2039 	}
2040 
2041 	if (!pll_params->pdiv_tohw)
2042 		return ERR_PTR(-EINVAL);
2043 
2044 	parent_rate = clk_get_rate(parent);
2045 
2046 	pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2047 
2048 	if (pll_params->adjust_vco)
2049 		pll_params->vco_min = pll_params->adjust_vco(pll_params,
2050 							     parent_rate);
2051 
2052 	/*
2053 	 * If the pll has a set_defaults callback, it will take care of
2054 	 * configuring dynamic ramping and setting IDDQ in that path.
2055 	 */
2056 	if (!pll_params->set_defaults) {
2057 		int err;
2058 
2059 		err = _setup_dynamic_ramp(pll_params, clk_base, parent_rate);
2060 		if (err)
2061 			return ERR_PTR(err);
2062 
2063 		val = readl_relaxed(clk_base + pll_params->base_reg);
2064 		val_iddq = readl_relaxed(clk_base + pll_params->iddq_reg);
2065 
2066 		if (val & PLL_BASE_ENABLE)
2067 			WARN_ON(val_iddq & BIT(pll_params->iddq_bit_idx));
2068 		else {
2069 			val_iddq |= BIT(pll_params->iddq_bit_idx);
2070 			writel_relaxed(val_iddq,
2071 				       clk_base + pll_params->iddq_reg);
2072 		}
2073 	}
2074 
2075 	pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2076 	if (IS_ERR(pll))
2077 		return ERR_CAST(pll);
2078 
2079 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2080 				      &tegra_clk_pllxc_ops);
2081 	if (IS_ERR(clk))
2082 		kfree(pll);
2083 
2084 	return clk;
2085 }
2086 
2087 struct clk *tegra_clk_register_pllre(const char *name, const char *parent_name,
2088 			  void __iomem *clk_base, void __iomem *pmc,
2089 			  unsigned long flags,
2090 			  struct tegra_clk_pll_params *pll_params,
2091 			  spinlock_t *lock, unsigned long parent_rate)
2092 {
2093 	u32 val;
2094 	struct tegra_clk_pll *pll;
2095 	struct clk *clk;
2096 
2097 	pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2098 
2099 	if (pll_params->adjust_vco)
2100 		pll_params->vco_min = pll_params->adjust_vco(pll_params,
2101 							     parent_rate);
2102 
2103 	pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2104 	if (IS_ERR(pll))
2105 		return ERR_CAST(pll);
2106 
2107 	/* program minimum rate by default */
2108 
2109 	val = pll_readl_base(pll);
2110 	if (val & PLL_BASE_ENABLE)
2111 		WARN_ON(readl_relaxed(clk_base + pll_params->iddq_reg) &
2112 				BIT(pll_params->iddq_bit_idx));
2113 	else {
2114 		int m;
2115 
2116 		m = _pll_fixed_mdiv(pll_params, parent_rate);
2117 		val = m << divm_shift(pll);
2118 		val |= (pll_params->vco_min / parent_rate) << divn_shift(pll);
2119 		pll_writel_base(val, pll);
2120 	}
2121 
2122 	/* disable lock override */
2123 
2124 	val = pll_readl_misc(pll);
2125 	val &= ~BIT(29);
2126 	pll_writel_misc(val, pll);
2127 
2128 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2129 				      &tegra_clk_pllre_ops);
2130 	if (IS_ERR(clk))
2131 		kfree(pll);
2132 
2133 	return clk;
2134 }
2135 
2136 struct clk *tegra_clk_register_pllm(const char *name, const char *parent_name,
2137 			  void __iomem *clk_base, void __iomem *pmc,
2138 			  unsigned long flags,
2139 			  struct tegra_clk_pll_params *pll_params,
2140 			  spinlock_t *lock)
2141 {
2142 	struct tegra_clk_pll *pll;
2143 	struct clk *clk, *parent;
2144 	unsigned long parent_rate;
2145 
2146 	if (!pll_params->pdiv_tohw)
2147 		return ERR_PTR(-EINVAL);
2148 
2149 	parent = __clk_lookup(parent_name);
2150 	if (!parent) {
2151 		WARN(1, "parent clk %s of %s must be registered first\n",
2152 			parent_name, name);
2153 		return ERR_PTR(-EINVAL);
2154 	}
2155 
2156 	parent_rate = clk_get_rate(parent);
2157 
2158 	pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2159 
2160 	if (pll_params->adjust_vco)
2161 		pll_params->vco_min = pll_params->adjust_vco(pll_params,
2162 							     parent_rate);
2163 
2164 	pll_params->flags |= TEGRA_PLL_BYPASS;
2165 	pll_params->flags |= TEGRA_PLLM;
2166 	pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2167 	if (IS_ERR(pll))
2168 		return ERR_CAST(pll);
2169 
2170 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2171 				      &tegra_clk_pll_ops);
2172 	if (IS_ERR(clk))
2173 		kfree(pll);
2174 
2175 	return clk;
2176 }
2177 
2178 struct clk *tegra_clk_register_pllc(const char *name, const char *parent_name,
2179 			  void __iomem *clk_base, void __iomem *pmc,
2180 			  unsigned long flags,
2181 			  struct tegra_clk_pll_params *pll_params,
2182 			  spinlock_t *lock)
2183 {
2184 	struct clk *parent, *clk;
2185 	const struct pdiv_map *p_tohw = pll_params->pdiv_tohw;
2186 	struct tegra_clk_pll *pll;
2187 	struct tegra_clk_pll_freq_table cfg;
2188 	unsigned long parent_rate;
2189 
2190 	if (!p_tohw)
2191 		return ERR_PTR(-EINVAL);
2192 
2193 	parent = __clk_lookup(parent_name);
2194 	if (!parent) {
2195 		WARN(1, "parent clk %s of %s must be registered first\n",
2196 			parent_name, name);
2197 		return ERR_PTR(-EINVAL);
2198 	}
2199 
2200 	parent_rate = clk_get_rate(parent);
2201 
2202 	pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2203 
2204 	pll_params->flags |= TEGRA_PLL_BYPASS;
2205 	pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2206 	if (IS_ERR(pll))
2207 		return ERR_CAST(pll);
2208 
2209 	/*
2210 	 * Most of PLLC register fields are shadowed, and can not be read
2211 	 * directly from PLL h/w. Hence, actual PLLC boot state is unknown.
2212 	 * Initialize PLL to default state: disabled, reset; shadow registers
2213 	 * loaded with default parameters; dividers are preset for half of
2214 	 * minimum VCO rate (the latter assured that shadowed divider settings
2215 	 * are within supported range).
2216 	 */
2217 
2218 	cfg.m = _pll_fixed_mdiv(pll_params, parent_rate);
2219 	cfg.n = cfg.m * pll_params->vco_min / parent_rate;
2220 
2221 	while (p_tohw->pdiv) {
2222 		if (p_tohw->pdiv == 2) {
2223 			cfg.p = p_tohw->hw_val;
2224 			break;
2225 		}
2226 		p_tohw++;
2227 	}
2228 
2229 	if (!p_tohw->pdiv) {
2230 		WARN_ON(1);
2231 		return ERR_PTR(-EINVAL);
2232 	}
2233 
2234 	pll_writel_base(0, pll);
2235 	_update_pll_mnp(pll, &cfg);
2236 
2237 	pll_writel_misc(PLLCX_MISC_DEFAULT, pll);
2238 	pll_writel(PLLCX_MISC1_DEFAULT, pll_params->ext_misc_reg[0], pll);
2239 	pll_writel(PLLCX_MISC2_DEFAULT, pll_params->ext_misc_reg[1], pll);
2240 	pll_writel(PLLCX_MISC3_DEFAULT, pll_params->ext_misc_reg[2], pll);
2241 
2242 	_pllcx_update_dynamic_coef(pll, parent_rate, cfg.n);
2243 
2244 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2245 				      &tegra_clk_pllc_ops);
2246 	if (IS_ERR(clk))
2247 		kfree(pll);
2248 
2249 	return clk;
2250 }
2251 
2252 struct clk *tegra_clk_register_plle_tegra114(const char *name,
2253 				const char *parent_name,
2254 				void __iomem *clk_base, unsigned long flags,
2255 				struct tegra_clk_pll_params *pll_params,
2256 				spinlock_t *lock)
2257 {
2258 	struct tegra_clk_pll *pll;
2259 	struct clk *clk;
2260 
2261 	pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
2262 	if (IS_ERR(pll))
2263 		return ERR_CAST(pll);
2264 
2265 	_clk_plle_tegra_init_parent(pll);
2266 
2267 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2268 				      &tegra_clk_plle_tegra114_ops);
2269 	if (IS_ERR(clk))
2270 		kfree(pll);
2271 
2272 	return clk;
2273 }
2274 
2275 struct clk *
2276 tegra_clk_register_pllu_tegra114(const char *name, const char *parent_name,
2277 				 void __iomem *clk_base, unsigned long flags,
2278 				 struct tegra_clk_pll_params *pll_params,
2279 				 spinlock_t *lock)
2280 {
2281 	struct tegra_clk_pll *pll;
2282 	struct clk *clk;
2283 
2284 	pll_params->flags |= TEGRA_PLLU;
2285 
2286 	pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
2287 	if (IS_ERR(pll))
2288 		return ERR_CAST(pll);
2289 
2290 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2291 				      &tegra_clk_pllu_tegra114_ops);
2292 	if (IS_ERR(clk))
2293 		kfree(pll);
2294 
2295 	return clk;
2296 }
2297 #endif
2298 
2299 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC) || defined(CONFIG_ARCH_TEGRA_210_SOC)
2300 static const struct clk_ops tegra_clk_pllss_ops = {
2301 	.is_enabled = clk_pll_is_enabled,
2302 	.enable = clk_pll_enable,
2303 	.disable = clk_pll_disable,
2304 	.recalc_rate = clk_pll_recalc_rate,
2305 	.round_rate = clk_pll_ramp_round_rate,
2306 	.set_rate = clk_pllxc_set_rate,
2307 	.restore_context = tegra_clk_pll_restore_context,
2308 };
2309 
2310 struct clk *tegra_clk_register_pllss(const char *name, const char *parent_name,
2311 				void __iomem *clk_base, unsigned long flags,
2312 				struct tegra_clk_pll_params *pll_params,
2313 				spinlock_t *lock)
2314 {
2315 	struct tegra_clk_pll *pll;
2316 	struct clk *clk, *parent;
2317 	struct tegra_clk_pll_freq_table cfg;
2318 	unsigned long parent_rate;
2319 	u32 val, val_iddq;
2320 	int i;
2321 
2322 	if (!pll_params->div_nmp)
2323 		return ERR_PTR(-EINVAL);
2324 
2325 	parent = __clk_lookup(parent_name);
2326 	if (!parent) {
2327 		WARN(1, "parent clk %s of %s must be registered first\n",
2328 			parent_name, name);
2329 		return ERR_PTR(-EINVAL);
2330 	}
2331 
2332 	pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
2333 	if (IS_ERR(pll))
2334 		return ERR_CAST(pll);
2335 
2336 	val = pll_readl_base(pll);
2337 	val &= ~PLLSS_REF_SRC_SEL_MASK;
2338 	pll_writel_base(val, pll);
2339 
2340 	parent_rate = clk_get_rate(parent);
2341 
2342 	pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2343 
2344 	/* initialize PLL to minimum rate */
2345 
2346 	cfg.m = _pll_fixed_mdiv(pll_params, parent_rate);
2347 	cfg.n = cfg.m * pll_params->vco_min / parent_rate;
2348 
2349 	for (i = 0; pll_params->pdiv_tohw[i].pdiv; i++)
2350 		;
2351 	if (!i) {
2352 		kfree(pll);
2353 		return ERR_PTR(-EINVAL);
2354 	}
2355 
2356 	cfg.p = pll_params->pdiv_tohw[i-1].hw_val;
2357 
2358 	_update_pll_mnp(pll, &cfg);
2359 
2360 	pll_writel_misc(PLLSS_MISC_DEFAULT, pll);
2361 	pll_writel(PLLSS_CFG_DEFAULT, pll_params->ext_misc_reg[0], pll);
2362 	pll_writel(PLLSS_CTRL1_DEFAULT, pll_params->ext_misc_reg[1], pll);
2363 	pll_writel(PLLSS_CTRL1_DEFAULT, pll_params->ext_misc_reg[2], pll);
2364 
2365 	val = pll_readl_base(pll);
2366 	val_iddq = readl_relaxed(clk_base + pll_params->iddq_reg);
2367 	if (val & PLL_BASE_ENABLE) {
2368 		if (val_iddq & BIT(pll_params->iddq_bit_idx)) {
2369 			WARN(1, "%s is on but IDDQ set\n", name);
2370 			kfree(pll);
2371 			return ERR_PTR(-EINVAL);
2372 		}
2373 	} else {
2374 		val_iddq |= BIT(pll_params->iddq_bit_idx);
2375 		writel_relaxed(val_iddq, clk_base + pll_params->iddq_reg);
2376 	}
2377 
2378 	val &= ~PLLSS_LOCK_OVERRIDE;
2379 	pll_writel_base(val, pll);
2380 
2381 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2382 					&tegra_clk_pllss_ops);
2383 
2384 	if (IS_ERR(clk))
2385 		kfree(pll);
2386 
2387 	return clk;
2388 }
2389 #endif
2390 
2391 #if defined(CONFIG_ARCH_TEGRA_210_SOC)
2392 struct clk *tegra_clk_register_pllre_tegra210(const char *name,
2393 			  const char *parent_name, void __iomem *clk_base,
2394 			  void __iomem *pmc, unsigned long flags,
2395 			  struct tegra_clk_pll_params *pll_params,
2396 			  spinlock_t *lock, unsigned long parent_rate)
2397 {
2398 	struct tegra_clk_pll *pll;
2399 	struct clk *clk;
2400 
2401 	pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2402 
2403 	if (pll_params->adjust_vco)
2404 		pll_params->vco_min = pll_params->adjust_vco(pll_params,
2405 							     parent_rate);
2406 
2407 	pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2408 	if (IS_ERR(pll))
2409 		return ERR_CAST(pll);
2410 
2411 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2412 				      &tegra_clk_pll_ops);
2413 	if (IS_ERR(clk))
2414 		kfree(pll);
2415 
2416 	return clk;
2417 }
2418 
2419 static int clk_plle_tegra210_is_enabled(struct clk_hw *hw)
2420 {
2421 	struct tegra_clk_pll *pll = to_clk_pll(hw);
2422 	u32 val;
2423 
2424 	val = pll_readl_base(pll);
2425 
2426 	return val & PLLE_BASE_ENABLE ? 1 : 0;
2427 }
2428 
2429 static int clk_plle_tegra210_enable(struct clk_hw *hw)
2430 {
2431 	struct tegra_clk_pll *pll = to_clk_pll(hw);
2432 	struct tegra_clk_pll_freq_table sel;
2433 	u32 val;
2434 	int ret = 0;
2435 	unsigned long flags = 0;
2436 	unsigned long input_rate;
2437 
2438 	if (clk_plle_tegra210_is_enabled(hw))
2439 		return 0;
2440 
2441 	input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
2442 
2443 	if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
2444 		return -EINVAL;
2445 
2446 	if (pll->lock)
2447 		spin_lock_irqsave(pll->lock, flags);
2448 
2449 	val = pll_readl(pll->params->aux_reg, pll);
2450 	if (val & PLLE_AUX_SEQ_ENABLE)
2451 		goto out;
2452 
2453 	val = pll_readl_base(pll);
2454 	val &= ~BIT(30); /* Disable lock override */
2455 	pll_writel_base(val, pll);
2456 
2457 	val = pll_readl_misc(pll);
2458 	val |= PLLE_MISC_LOCK_ENABLE;
2459 	val |= PLLE_MISC_IDDQ_SW_CTRL;
2460 	val &= ~PLLE_MISC_IDDQ_SW_VALUE;
2461 	val |= PLLE_MISC_PLLE_PTS;
2462 	val &= ~(PLLE_MISC_VREG_BG_CTRL_MASK | PLLE_MISC_VREG_CTRL_MASK);
2463 	pll_writel_misc(val, pll);
2464 	udelay(5);
2465 
2466 	val = pll_readl(PLLE_SS_CTRL, pll);
2467 	val |= PLLE_SS_DISABLE;
2468 	pll_writel(val, PLLE_SS_CTRL, pll);
2469 
2470 	val = pll_readl_base(pll);
2471 	val &= ~(divp_mask_shifted(pll) | divn_mask_shifted(pll) |
2472 		 divm_mask_shifted(pll));
2473 	val &= ~(PLLE_BASE_DIVCML_MASK << PLLE_BASE_DIVCML_SHIFT);
2474 	val |= sel.m << divm_shift(pll);
2475 	val |= sel.n << divn_shift(pll);
2476 	val |= sel.cpcon << PLLE_BASE_DIVCML_SHIFT;
2477 	pll_writel_base(val, pll);
2478 	udelay(1);
2479 
2480 	val = pll_readl_base(pll);
2481 	val |= PLLE_BASE_ENABLE;
2482 	pll_writel_base(val, pll);
2483 
2484 	ret = clk_pll_wait_for_lock(pll);
2485 
2486 	if (ret < 0)
2487 		goto out;
2488 
2489 	val = pll_readl(PLLE_SS_CTRL, pll);
2490 	val &= ~(PLLE_SS_CNTL_CENTER | PLLE_SS_CNTL_INVERT);
2491 	val &= ~PLLE_SS_COEFFICIENTS_MASK;
2492 	val |= PLLE_SS_COEFFICIENTS_VAL_TEGRA210;
2493 	pll_writel(val, PLLE_SS_CTRL, pll);
2494 	val &= ~(PLLE_SS_CNTL_SSC_BYP | PLLE_SS_CNTL_BYPASS_SS);
2495 	pll_writel(val, PLLE_SS_CTRL, pll);
2496 	udelay(1);
2497 	val &= ~PLLE_SS_CNTL_INTERP_RESET;
2498 	pll_writel(val, PLLE_SS_CTRL, pll);
2499 	udelay(1);
2500 
2501 	val = pll_readl_misc(pll);
2502 	val &= ~PLLE_MISC_IDDQ_SW_CTRL;
2503 	pll_writel_misc(val, pll);
2504 
2505 	val = pll_readl(pll->params->aux_reg, pll);
2506 	val |= (PLLE_AUX_USE_LOCKDET | PLLE_AUX_SS_SEQ_INCLUDE);
2507 	val &= ~(PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL);
2508 	pll_writel(val, pll->params->aux_reg, pll);
2509 	udelay(1);
2510 	val |= PLLE_AUX_SEQ_ENABLE;
2511 	pll_writel(val, pll->params->aux_reg, pll);
2512 
2513 out:
2514 	if (pll->lock)
2515 		spin_unlock_irqrestore(pll->lock, flags);
2516 
2517 	return ret;
2518 }
2519 
2520 static void clk_plle_tegra210_disable(struct clk_hw *hw)
2521 {
2522 	struct tegra_clk_pll *pll = to_clk_pll(hw);
2523 	unsigned long flags = 0;
2524 	u32 val;
2525 
2526 	if (pll->lock)
2527 		spin_lock_irqsave(pll->lock, flags);
2528 
2529 	/* If PLLE HW sequencer is enabled, SW should not disable PLLE */
2530 	val = pll_readl(pll->params->aux_reg, pll);
2531 	if (val & PLLE_AUX_SEQ_ENABLE)
2532 		goto out;
2533 
2534 	val = pll_readl_base(pll);
2535 	val &= ~PLLE_BASE_ENABLE;
2536 	pll_writel_base(val, pll);
2537 
2538 	val = pll_readl(pll->params->aux_reg, pll);
2539 	val |= PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL;
2540 	pll_writel(val, pll->params->aux_reg, pll);
2541 
2542 	val = pll_readl_misc(pll);
2543 	val |= PLLE_MISC_IDDQ_SW_CTRL | PLLE_MISC_IDDQ_SW_VALUE;
2544 	pll_writel_misc(val, pll);
2545 	udelay(1);
2546 
2547 out:
2548 	if (pll->lock)
2549 		spin_unlock_irqrestore(pll->lock, flags);
2550 }
2551 
2552 static void tegra_clk_plle_t210_restore_context(struct clk_hw *hw)
2553 {
2554 	struct tegra_clk_pll *pll = to_clk_pll(hw);
2555 
2556 	_clk_plle_tegra_init_parent(pll);
2557 }
2558 
2559 static const struct clk_ops tegra_clk_plle_tegra210_ops = {
2560 	.is_enabled =  clk_plle_tegra210_is_enabled,
2561 	.enable = clk_plle_tegra210_enable,
2562 	.disable = clk_plle_tegra210_disable,
2563 	.recalc_rate = clk_pll_recalc_rate,
2564 	.restore_context = tegra_clk_plle_t210_restore_context,
2565 };
2566 
2567 struct clk *tegra_clk_register_plle_tegra210(const char *name,
2568 				const char *parent_name,
2569 				void __iomem *clk_base, unsigned long flags,
2570 				struct tegra_clk_pll_params *pll_params,
2571 				spinlock_t *lock)
2572 {
2573 	struct tegra_clk_pll *pll;
2574 	struct clk *clk;
2575 
2576 	pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
2577 	if (IS_ERR(pll))
2578 		return ERR_CAST(pll);
2579 
2580 	_clk_plle_tegra_init_parent(pll);
2581 
2582 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2583 				      &tegra_clk_plle_tegra210_ops);
2584 	if (IS_ERR(clk))
2585 		kfree(pll);
2586 
2587 	return clk;
2588 }
2589 
2590 struct clk *tegra_clk_register_pllc_tegra210(const char *name,
2591 			const char *parent_name, void __iomem *clk_base,
2592 			void __iomem *pmc, unsigned long flags,
2593 			struct tegra_clk_pll_params *pll_params,
2594 			spinlock_t *lock)
2595 {
2596 	struct clk *parent, *clk;
2597 	const struct pdiv_map *p_tohw = pll_params->pdiv_tohw;
2598 	struct tegra_clk_pll *pll;
2599 	unsigned long parent_rate;
2600 
2601 	if (!p_tohw)
2602 		return ERR_PTR(-EINVAL);
2603 
2604 	parent = __clk_lookup(parent_name);
2605 	if (!parent) {
2606 		WARN(1, "parent clk %s of %s must be registered first\n",
2607 			name, parent_name);
2608 		return ERR_PTR(-EINVAL);
2609 	}
2610 
2611 	parent_rate = clk_get_rate(parent);
2612 
2613 	pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2614 
2615 	if (pll_params->adjust_vco)
2616 		pll_params->vco_min = pll_params->adjust_vco(pll_params,
2617 							     parent_rate);
2618 
2619 	pll_params->flags |= TEGRA_PLL_BYPASS;
2620 	pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2621 	if (IS_ERR(pll))
2622 		return ERR_CAST(pll);
2623 
2624 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2625 				      &tegra_clk_pll_ops);
2626 	if (IS_ERR(clk))
2627 		kfree(pll);
2628 
2629 	return clk;
2630 }
2631 
2632 struct clk *tegra_clk_register_pllss_tegra210(const char *name,
2633 				const char *parent_name, void __iomem *clk_base,
2634 				unsigned long flags,
2635 				struct tegra_clk_pll_params *pll_params,
2636 				spinlock_t *lock)
2637 {
2638 	struct tegra_clk_pll *pll;
2639 	struct clk *clk, *parent;
2640 	unsigned long parent_rate;
2641 	u32 val;
2642 
2643 	if (!pll_params->div_nmp)
2644 		return ERR_PTR(-EINVAL);
2645 
2646 	parent = __clk_lookup(parent_name);
2647 	if (!parent) {
2648 		WARN(1, "parent clk %s of %s must be registered first\n",
2649 			name, parent_name);
2650 		return ERR_PTR(-EINVAL);
2651 	}
2652 
2653 	val = readl_relaxed(clk_base + pll_params->base_reg);
2654 	if (val & PLLSS_REF_SRC_SEL_MASK) {
2655 		WARN(1, "not supported reference clock for %s\n", name);
2656 		return ERR_PTR(-EINVAL);
2657 	}
2658 
2659 	parent_rate = clk_get_rate(parent);
2660 
2661 	pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2662 
2663 	if (pll_params->adjust_vco)
2664 		pll_params->vco_min = pll_params->adjust_vco(pll_params,
2665 							     parent_rate);
2666 
2667 	pll_params->flags |= TEGRA_PLL_BYPASS;
2668 	pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
2669 	if (IS_ERR(pll))
2670 		return ERR_CAST(pll);
2671 
2672 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2673 					&tegra_clk_pll_ops);
2674 
2675 	if (IS_ERR(clk))
2676 		kfree(pll);
2677 
2678 	return clk;
2679 }
2680 
2681 struct clk *tegra_clk_register_pllmb(const char *name, const char *parent_name,
2682 			  void __iomem *clk_base, void __iomem *pmc,
2683 			  unsigned long flags,
2684 			  struct tegra_clk_pll_params *pll_params,
2685 			  spinlock_t *lock)
2686 {
2687 	struct tegra_clk_pll *pll;
2688 	struct clk *clk, *parent;
2689 	unsigned long parent_rate;
2690 
2691 	if (!pll_params->pdiv_tohw)
2692 		return ERR_PTR(-EINVAL);
2693 
2694 	parent = __clk_lookup(parent_name);
2695 	if (!parent) {
2696 		WARN(1, "parent clk %s of %s must be registered first\n",
2697 			parent_name, name);
2698 		return ERR_PTR(-EINVAL);
2699 	}
2700 
2701 	parent_rate = clk_get_rate(parent);
2702 
2703 	pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2704 
2705 	if (pll_params->adjust_vco)
2706 		pll_params->vco_min = pll_params->adjust_vco(pll_params,
2707 							     parent_rate);
2708 
2709 	pll_params->flags |= TEGRA_PLL_BYPASS;
2710 	pll_params->flags |= TEGRA_PLLMB;
2711 	pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2712 	if (IS_ERR(pll))
2713 		return ERR_CAST(pll);
2714 
2715 	clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2716 				      &tegra_clk_pll_ops);
2717 	if (IS_ERR(clk))
2718 		kfree(pll);
2719 
2720 	return clk;
2721 }
2722 
2723 #endif
2724