1 /*
2  * Copyright (c) 2010-2013, NVIDIA CORPORATION. All rights reserved.
3  * Copyright (c) 2011 The Chromium OS Authors.
4  *
5  * SPDX-License-Identifier: GPL-2.0+
6  */
7 
8 #include <common.h>
9 #include <asm/io.h>
10 #include <asm/arch/pinmux.h>
11 
12 /* return 1 if a pingrp is in range */
13 #define pmux_pingrp_isvalid(pin) (((pin) >= 0) && ((pin) < PMUX_PINGRP_COUNT))
14 
15 /* return 1 if a pmux_func is in range */
16 #define pmux_func_isvalid(func) \
17 	(((func) >= 0) && ((func) < PMUX_FUNC_COUNT))
18 
19 /* return 1 if a pin_pupd_is in range */
20 #define pmux_pin_pupd_isvalid(pupd) \
21 	(((pupd) >= PMUX_PULL_NORMAL) && ((pupd) <= PMUX_PULL_UP))
22 
23 /* return 1 if a pin_tristate_is in range */
24 #define pmux_pin_tristate_isvalid(tristate) \
25 	(((tristate) >= PMUX_TRI_NORMAL) && ((tristate) <= PMUX_TRI_TRISTATE))
26 
27 #ifdef TEGRA_PMX_PINS_HAVE_E_INPUT
28 /* return 1 if a pin_io_is in range */
29 #define pmux_pin_io_isvalid(io) \
30 	(((io) >= PMUX_PIN_OUTPUT) && ((io) <= PMUX_PIN_INPUT))
31 #endif
32 
33 #ifdef TEGRA_PMX_PINS_HAVE_LOCK
34 /* return 1 if a pin_lock is in range */
35 #define pmux_pin_lock_isvalid(lock) \
36 	(((lock) >= PMUX_PIN_LOCK_DISABLE) && ((lock) <= PMUX_PIN_LOCK_ENABLE))
37 #endif
38 
39 #ifdef TEGRA_PMX_PINS_HAVE_OD
40 /* return 1 if a pin_od is in range */
41 #define pmux_pin_od_isvalid(od) \
42 	(((od) >= PMUX_PIN_OD_DISABLE) && ((od) <= PMUX_PIN_OD_ENABLE))
43 #endif
44 
45 #ifdef TEGRA_PMX_PINS_HAVE_IO_RESET
46 /* return 1 if a pin_ioreset_is in range */
47 #define pmux_pin_ioreset_isvalid(ioreset) \
48 	(((ioreset) >= PMUX_PIN_IO_RESET_DISABLE) && \
49 	 ((ioreset) <= PMUX_PIN_IO_RESET_ENABLE))
50 #endif
51 
52 #ifdef TEGRA_PMX_PINS_HAVE_RCV_SEL
53 /* return 1 if a pin_rcv_sel_is in range */
54 #define pmux_pin_rcv_sel_isvalid(rcv_sel) \
55 	(((rcv_sel) >= PMUX_PIN_RCV_SEL_NORMAL) && \
56 	 ((rcv_sel) <= PMUX_PIN_RCV_SEL_HIGH))
57 #endif
58 
59 #ifdef TEGRA_PMX_PINS_HAVE_E_IO_HV
60 /* return 1 if a pin_e_io_hv is in range */
61 #define pmux_pin_e_io_hv_isvalid(e_io_hv) \
62 	(((e_io_hv) >= PMUX_PIN_E_IO_HV_NORMAL) && \
63 	 ((e_io_hv) <= PMUX_PIN_E_IO_HV_HIGH))
64 #endif
65 
66 #ifdef TEGRA_PMX_GRPS_HAVE_LPMD
67 #define pmux_lpmd_isvalid(lpm) \
68 	(((lpm) >= PMUX_LPMD_X8) && ((lpm) <= PMUX_LPMD_X))
69 #endif
70 
71 #if defined(TEGRA_PMX_PINS_HAVE_SCHMT) || defined(TEGRA_PMX_GRPS_HAVE_SCHMT)
72 #define pmux_schmt_isvalid(schmt) \
73 	(((schmt) >= PMUX_SCHMT_DISABLE) && ((schmt) <= PMUX_SCHMT_ENABLE))
74 #endif
75 
76 #if defined(TEGRA_PMX_PINS_HAVE_HSM) || defined(TEGRA_PMX_GRPS_HAVE_HSM)
77 #define pmux_hsm_isvalid(hsm) \
78 	(((hsm) >= PMUX_HSM_DISABLE) && ((hsm) <= PMUX_HSM_ENABLE))
79 #endif
80 
81 #define _R(offset)	(u32 *)((unsigned long)NV_PA_APB_MISC_BASE + (offset))
82 
83 #if defined(CONFIG_TEGRA20)
84 
85 #define MUX_REG(grp)	_R(0x80 + ((tegra_soc_pingroups[grp].ctl_id / 16) * 4))
86 #define MUX_SHIFT(grp)	((tegra_soc_pingroups[grp].ctl_id % 16) * 2)
87 
88 #define PULL_REG(grp)	_R(0xa0 + ((tegra_soc_pingroups[grp].pull_id / 16) * 4))
89 #define PULL_SHIFT(grp)	((tegra_soc_pingroups[grp].pull_id % 16) * 2)
90 
91 #define TRI_REG(grp)	_R(0x14 + (((grp) / 32) * 4))
92 #define TRI_SHIFT(grp)	((grp) % 32)
93 
94 #else
95 
96 #define REG(pin)	_R(0x3000 + ((pin) * 4))
97 
98 #define MUX_REG(pin)	REG(pin)
99 #define MUX_SHIFT(pin)	0
100 
101 #define PULL_REG(pin)	REG(pin)
102 #define PULL_SHIFT(pin)	2
103 
104 #define TRI_REG(pin)	REG(pin)
105 #define TRI_SHIFT(pin)	4
106 
107 #endif /* CONFIG_TEGRA20 */
108 
109 #define DRV_REG(group)	_R(TEGRA_PMX_SOC_DRV_GROUP_BASE_REG + ((group) * 4))
110 
111 #define MIPIPADCTRL_REG(group)	_R(TEGRA_PMX_SOC_MIPIPADCTRL_BASE_REG + ((group) * 4))
112 
113 /*
114  * We could force arch-tegraNN/pinmux.h to define all of these. However,
115  * that's a lot of defines, and for now it's manageable to just put a
116  * special case here. It's possible this decision will change with future
117  * SoCs.
118  */
119 #ifdef CONFIG_TEGRA210
120 #define IO_SHIFT	6
121 #define LOCK_SHIFT	7
122 #ifdef TEGRA_PMX_PINS_HAVE_HSM
123 #define HSM_SHIFT	9
124 #endif
125 #define E_IO_HV_SHIFT	10
126 #define OD_SHIFT	11
127 #ifdef TEGRA_PMX_PINS_HAVE_SCHMT
128 #define SCHMT_SHIFT	12
129 #endif
130 #else
131 #define IO_SHIFT	5
132 #define OD_SHIFT	6
133 #define LOCK_SHIFT	7
134 #define IO_RESET_SHIFT	8
135 #define RCV_SEL_SHIFT	9
136 #endif
137 
138 #ifdef TEGRA_PMX_SOC_HAS_IO_CLAMPING
139 /* This register/field only exists on Tegra114 and later */
140 #define APB_MISC_PP_PINMUX_GLOBAL_0 0x40
141 #define CLAMP_INPUTS_WHEN_TRISTATED 1
142 
143 void pinmux_set_tristate_input_clamping(void)
144 {
145 	u32 *reg = _R(APB_MISC_PP_PINMUX_GLOBAL_0);
146 
147 	setbits_le32(reg, CLAMP_INPUTS_WHEN_TRISTATED);
148 }
149 
150 void pinmux_clear_tristate_input_clamping(void)
151 {
152 	u32 *reg = _R(APB_MISC_PP_PINMUX_GLOBAL_0);
153 
154 	clrbits_le32(reg, CLAMP_INPUTS_WHEN_TRISTATED);
155 }
156 #endif
157 
158 void pinmux_set_func(enum pmux_pingrp pin, enum pmux_func func)
159 {
160 	u32 *reg = MUX_REG(pin);
161 	int i, mux = -1;
162 	u32 val;
163 
164 	if (func == PMUX_FUNC_DEFAULT)
165 		return;
166 
167 	/* Error check on pin and func */
168 	assert(pmux_pingrp_isvalid(pin));
169 	assert(pmux_func_isvalid(func));
170 
171 	if (func >= PMUX_FUNC_RSVD1) {
172 		mux = (func - PMUX_FUNC_RSVD1) & 3;
173 	} else {
174 		/* Search for the appropriate function */
175 		for (i = 0; i < 4; i++) {
176 			if (tegra_soc_pingroups[pin].funcs[i] == func) {
177 				mux = i;
178 				break;
179 			}
180 		}
181 	}
182 	assert(mux != -1);
183 
184 	val = readl(reg);
185 	val &= ~(3 << MUX_SHIFT(pin));
186 	val |= (mux << MUX_SHIFT(pin));
187 	writel(val, reg);
188 }
189 
190 void pinmux_set_pullupdown(enum pmux_pingrp pin, enum pmux_pull pupd)
191 {
192 	u32 *reg = PULL_REG(pin);
193 	u32 val;
194 
195 	/* Error check on pin and pupd */
196 	assert(pmux_pingrp_isvalid(pin));
197 	assert(pmux_pin_pupd_isvalid(pupd));
198 
199 	val = readl(reg);
200 	val &= ~(3 << PULL_SHIFT(pin));
201 	val |= (pupd << PULL_SHIFT(pin));
202 	writel(val, reg);
203 }
204 
205 static void pinmux_set_tristate(enum pmux_pingrp pin, int tri)
206 {
207 	u32 *reg = TRI_REG(pin);
208 	u32 val;
209 
210 	/* Error check on pin */
211 	assert(pmux_pingrp_isvalid(pin));
212 	assert(pmux_pin_tristate_isvalid(tri));
213 
214 	val = readl(reg);
215 	if (tri == PMUX_TRI_TRISTATE)
216 		val |= (1 << TRI_SHIFT(pin));
217 	else
218 		val &= ~(1 << TRI_SHIFT(pin));
219 	writel(val, reg);
220 }
221 
222 void pinmux_tristate_enable(enum pmux_pingrp pin)
223 {
224 	pinmux_set_tristate(pin, PMUX_TRI_TRISTATE);
225 }
226 
227 void pinmux_tristate_disable(enum pmux_pingrp pin)
228 {
229 	pinmux_set_tristate(pin, PMUX_TRI_NORMAL);
230 }
231 
232 #ifdef TEGRA_PMX_PINS_HAVE_E_INPUT
233 void pinmux_set_io(enum pmux_pingrp pin, enum pmux_pin_io io)
234 {
235 	u32 *reg = REG(pin);
236 	u32 val;
237 
238 	if (io == PMUX_PIN_NONE)
239 		return;
240 
241 	/* Error check on pin and io */
242 	assert(pmux_pingrp_isvalid(pin));
243 	assert(pmux_pin_io_isvalid(io));
244 
245 	val = readl(reg);
246 	if (io == PMUX_PIN_INPUT)
247 		val |= (io & 1) << IO_SHIFT;
248 	else
249 		val &= ~(1 << IO_SHIFT);
250 	writel(val, reg);
251 }
252 #endif
253 
254 #ifdef TEGRA_PMX_PINS_HAVE_LOCK
255 static void pinmux_set_lock(enum pmux_pingrp pin, enum pmux_pin_lock lock)
256 {
257 	u32 *reg = REG(pin);
258 	u32 val;
259 
260 	if (lock == PMUX_PIN_LOCK_DEFAULT)
261 		return;
262 
263 	/* Error check on pin and lock */
264 	assert(pmux_pingrp_isvalid(pin));
265 	assert(pmux_pin_lock_isvalid(lock));
266 
267 	val = readl(reg);
268 	if (lock == PMUX_PIN_LOCK_ENABLE) {
269 		val |= (1 << LOCK_SHIFT);
270 	} else {
271 		if (val & (1 << LOCK_SHIFT))
272 			printf("%s: Cannot clear LOCK bit!\n", __func__);
273 		val &= ~(1 << LOCK_SHIFT);
274 	}
275 	writel(val, reg);
276 
277 	return;
278 }
279 #endif
280 
281 #ifdef TEGRA_PMX_PINS_HAVE_OD
282 static void pinmux_set_od(enum pmux_pingrp pin, enum pmux_pin_od od)
283 {
284 	u32 *reg = REG(pin);
285 	u32 val;
286 
287 	if (od == PMUX_PIN_OD_DEFAULT)
288 		return;
289 
290 	/* Error check on pin and od */
291 	assert(pmux_pingrp_isvalid(pin));
292 	assert(pmux_pin_od_isvalid(od));
293 
294 	val = readl(reg);
295 	if (od == PMUX_PIN_OD_ENABLE)
296 		val |= (1 << OD_SHIFT);
297 	else
298 		val &= ~(1 << OD_SHIFT);
299 	writel(val, reg);
300 
301 	return;
302 }
303 #endif
304 
305 #ifdef TEGRA_PMX_PINS_HAVE_IO_RESET
306 static void pinmux_set_ioreset(enum pmux_pingrp pin,
307 				enum pmux_pin_ioreset ioreset)
308 {
309 	u32 *reg = REG(pin);
310 	u32 val;
311 
312 	if (ioreset == PMUX_PIN_IO_RESET_DEFAULT)
313 		return;
314 
315 	/* Error check on pin and ioreset */
316 	assert(pmux_pingrp_isvalid(pin));
317 	assert(pmux_pin_ioreset_isvalid(ioreset));
318 
319 	val = readl(reg);
320 	if (ioreset == PMUX_PIN_IO_RESET_ENABLE)
321 		val |= (1 << IO_RESET_SHIFT);
322 	else
323 		val &= ~(1 << IO_RESET_SHIFT);
324 	writel(val, reg);
325 
326 	return;
327 }
328 #endif
329 
330 #ifdef TEGRA_PMX_PINS_HAVE_RCV_SEL
331 static void pinmux_set_rcv_sel(enum pmux_pingrp pin,
332 				enum pmux_pin_rcv_sel rcv_sel)
333 {
334 	u32 *reg = REG(pin);
335 	u32 val;
336 
337 	if (rcv_sel == PMUX_PIN_RCV_SEL_DEFAULT)
338 		return;
339 
340 	/* Error check on pin and rcv_sel */
341 	assert(pmux_pingrp_isvalid(pin));
342 	assert(pmux_pin_rcv_sel_isvalid(rcv_sel));
343 
344 	val = readl(reg);
345 	if (rcv_sel == PMUX_PIN_RCV_SEL_HIGH)
346 		val |= (1 << RCV_SEL_SHIFT);
347 	else
348 		val &= ~(1 << RCV_SEL_SHIFT);
349 	writel(val, reg);
350 
351 	return;
352 }
353 #endif
354 
355 #ifdef TEGRA_PMX_PINS_HAVE_E_IO_HV
356 static void pinmux_set_e_io_hv(enum pmux_pingrp pin,
357 				enum pmux_pin_e_io_hv e_io_hv)
358 {
359 	u32 *reg = REG(pin);
360 	u32 val;
361 
362 	if (e_io_hv == PMUX_PIN_E_IO_HV_DEFAULT)
363 		return;
364 
365 	/* Error check on pin and e_io_hv */
366 	assert(pmux_pingrp_isvalid(pin));
367 	assert(pmux_pin_e_io_hv_isvalid(e_io_hv));
368 
369 	val = readl(reg);
370 	if (e_io_hv == PMUX_PIN_E_IO_HV_HIGH)
371 		val |= (1 << E_IO_HV_SHIFT);
372 	else
373 		val &= ~(1 << E_IO_HV_SHIFT);
374 	writel(val, reg);
375 
376 	return;
377 }
378 #endif
379 
380 #ifdef TEGRA_PMX_PINS_HAVE_SCHMT
381 static void pinmux_set_schmt(enum pmux_pingrp pin, enum pmux_schmt schmt)
382 {
383 	u32 *reg = REG(grp);
384 	u32 val;
385 
386 	/* NONE means unspecified/do not change/use POR value */
387 	if (schmt == PMUX_SCHMT_NONE)
388 		return;
389 
390 	/* Error check pad */
391 	assert(pmux_pingrp_isvalid(pin));
392 	assert(pmux_schmt_isvalid(schmt));
393 
394 	val = readl(reg);
395 	if (schmt == PMUX_SCHMT_ENABLE)
396 		val |= (1 << SCHMT_SHIFT);
397 	else
398 		val &= ~(1 << SCHMT_SHIFT);
399 	writel(val, reg);
400 
401 	return;
402 }
403 #endif
404 
405 #ifdef TEGRA_PMX_PINS_HAVE_HSM
406 static void pinmux_set_hsm(enum pmux_pingrp pin, enum pmux_hsm hsm)
407 {
408 	u32 *reg = REG(grp);
409 	u32 val;
410 
411 	/* NONE means unspecified/do not change/use POR value */
412 	if (hsm == PMUX_HSM_NONE)
413 		return;
414 
415 	/* Error check pad */
416 	assert(pmux_pingrp_isvalid(pin));
417 	assert(pmux_hsm_isvalid(hsm));
418 
419 	val = readl(reg);
420 	if (hsm == PMUX_HSM_ENABLE)
421 		val |= (1 << HSM_SHIFT);
422 	else
423 		val &= ~(1 << HSM_SHIFT);
424 	writel(val, reg);
425 
426 	return;
427 }
428 #endif
429 
430 static void pinmux_config_pingrp(const struct pmux_pingrp_config *config)
431 {
432 	enum pmux_pingrp pin = config->pingrp;
433 
434 	pinmux_set_func(pin, config->func);
435 	pinmux_set_pullupdown(pin, config->pull);
436 	pinmux_set_tristate(pin, config->tristate);
437 #ifdef TEGRA_PMX_PINS_HAVE_E_INPUT
438 	pinmux_set_io(pin, config->io);
439 #endif
440 #ifdef TEGRA_PMX_PINS_HAVE_LOCK
441 	pinmux_set_lock(pin, config->lock);
442 #endif
443 #ifdef TEGRA_PMX_PINS_HAVE_OD
444 	pinmux_set_od(pin, config->od);
445 #endif
446 #ifdef TEGRA_PMX_PINS_HAVE_IO_RESET
447 	pinmux_set_ioreset(pin, config->ioreset);
448 #endif
449 #ifdef TEGRA_PMX_PINS_HAVE_RCV_SEL
450 	pinmux_set_rcv_sel(pin, config->rcv_sel);
451 #endif
452 #ifdef TEGRA_PMX_PINS_HAVE_E_IO_HV
453 	pinmux_set_e_io_hv(pin, config->e_io_hv);
454 #endif
455 #ifdef TEGRA_PMX_PINS_HAVE_SCHMT
456 	pinmux_set_schmt(pin, config->schmt);
457 #endif
458 #ifdef TEGRA_PMX_PINS_HAVE_HSM
459 	pinmux_set_hsm(pin, config->hsm);
460 #endif
461 }
462 
463 void pinmux_config_pingrp_table(const struct pmux_pingrp_config *config,
464 				int len)
465 {
466 	int i;
467 
468 	for (i = 0; i < len; i++)
469 		pinmux_config_pingrp(&config[i]);
470 }
471 
472 #ifdef TEGRA_PMX_SOC_HAS_DRVGRPS
473 
474 #define pmux_drvgrp_isvalid(pd) (((pd) >= 0) && ((pd) < PMUX_DRVGRP_COUNT))
475 
476 #define pmux_slw_isvalid(slw) \
477 	(((slw) >= PMUX_SLWF_MIN) && ((slw) <= PMUX_SLWF_MAX))
478 
479 #define pmux_drv_isvalid(drv) \
480 	(((drv) >= PMUX_DRVUP_MIN) && ((drv) <= PMUX_DRVUP_MAX))
481 
482 #ifdef TEGRA_PMX_GRPS_HAVE_HSM
483 #define HSM_SHIFT	2
484 #endif
485 #ifdef TEGRA_PMX_GRPS_HAVE_SCHMT
486 #define SCHMT_SHIFT	3
487 #endif
488 #ifdef TEGRA_PMX_GRPS_HAVE_LPMD
489 #define LPMD_SHIFT	4
490 #define LPMD_MASK	(3 << LPMD_SHIFT)
491 #endif
492 /*
493  * Note that the following DRV* and SLW* defines are accurate for many drive
494  * groups on many SoCs. We really need a per-group data structure to solve
495  * this, since the fields are in different positions/sizes in different
496  * registers (for different groups).
497  *
498  * On Tegra30/114/124, the DRV*_SHIFT values vary.
499  * On Tegra30, the SLW*_SHIFT values vary.
500  * On Tegra30/114/124/210, the DRV*_MASK values vary, although the values
501  *   below are wide enough to cover the widest fields, and hopefully don't
502  *   interfere with any other fields.
503  * On Tegra30, the SLW*_MASK values vary, but we can't use a value that's
504  *   wide enough to cover all cases, since that would cause the field to
505  *   overlap with other fields in the narrower cases.
506  */
507 #define DRVDN_SHIFT	12
508 #define DRVDN_MASK	(0x7F << DRVDN_SHIFT)
509 #define DRVUP_SHIFT	20
510 #define DRVUP_MASK	(0x7F << DRVUP_SHIFT)
511 #define SLWR_SHIFT	28
512 #define SLWR_MASK	(3 << SLWR_SHIFT)
513 #define SLWF_SHIFT	30
514 #define SLWF_MASK	(3 << SLWF_SHIFT)
515 
516 static void pinmux_set_drvup_slwf(enum pmux_drvgrp grp, int slwf)
517 {
518 	u32 *reg = DRV_REG(grp);
519 	u32 val;
520 
521 	/* NONE means unspecified/do not change/use POR value */
522 	if (slwf == PMUX_SLWF_NONE)
523 		return;
524 
525 	/* Error check on pad and slwf */
526 	assert(pmux_drvgrp_isvalid(grp));
527 	assert(pmux_slw_isvalid(slwf));
528 
529 	val = readl(reg);
530 	val &= ~SLWF_MASK;
531 	val |= (slwf << SLWF_SHIFT);
532 	writel(val, reg);
533 
534 	return;
535 }
536 
537 static void pinmux_set_drvdn_slwr(enum pmux_drvgrp grp, int slwr)
538 {
539 	u32 *reg = DRV_REG(grp);
540 	u32 val;
541 
542 	/* NONE means unspecified/do not change/use POR value */
543 	if (slwr == PMUX_SLWR_NONE)
544 		return;
545 
546 	/* Error check on pad and slwr */
547 	assert(pmux_drvgrp_isvalid(grp));
548 	assert(pmux_slw_isvalid(slwr));
549 
550 	val = readl(reg);
551 	val &= ~SLWR_MASK;
552 	val |= (slwr << SLWR_SHIFT);
553 	writel(val, reg);
554 
555 	return;
556 }
557 
558 static void pinmux_set_drvup(enum pmux_drvgrp grp, int drvup)
559 {
560 	u32 *reg = DRV_REG(grp);
561 	u32 val;
562 
563 	/* NONE means unspecified/do not change/use POR value */
564 	if (drvup == PMUX_DRVUP_NONE)
565 		return;
566 
567 	/* Error check on pad and drvup */
568 	assert(pmux_drvgrp_isvalid(grp));
569 	assert(pmux_drv_isvalid(drvup));
570 
571 	val = readl(reg);
572 	val &= ~DRVUP_MASK;
573 	val |= (drvup << DRVUP_SHIFT);
574 	writel(val, reg);
575 
576 	return;
577 }
578 
579 static void pinmux_set_drvdn(enum pmux_drvgrp grp, int drvdn)
580 {
581 	u32 *reg = DRV_REG(grp);
582 	u32 val;
583 
584 	/* NONE means unspecified/do not change/use POR value */
585 	if (drvdn == PMUX_DRVDN_NONE)
586 		return;
587 
588 	/* Error check on pad and drvdn */
589 	assert(pmux_drvgrp_isvalid(grp));
590 	assert(pmux_drv_isvalid(drvdn));
591 
592 	val = readl(reg);
593 	val &= ~DRVDN_MASK;
594 	val |= (drvdn << DRVDN_SHIFT);
595 	writel(val, reg);
596 
597 	return;
598 }
599 
600 #ifdef TEGRA_PMX_GRPS_HAVE_LPMD
601 static void pinmux_set_lpmd(enum pmux_drvgrp grp, enum pmux_lpmd lpmd)
602 {
603 	u32 *reg = DRV_REG(grp);
604 	u32 val;
605 
606 	/* NONE means unspecified/do not change/use POR value */
607 	if (lpmd == PMUX_LPMD_NONE)
608 		return;
609 
610 	/* Error check pad and lpmd value */
611 	assert(pmux_drvgrp_isvalid(grp));
612 	assert(pmux_lpmd_isvalid(lpmd));
613 
614 	val = readl(reg);
615 	val &= ~LPMD_MASK;
616 	val |= (lpmd << LPMD_SHIFT);
617 	writel(val, reg);
618 
619 	return;
620 }
621 #endif
622 
623 #ifdef TEGRA_PMX_GRPS_HAVE_SCHMT
624 static void pinmux_set_schmt(enum pmux_drvgrp grp, enum pmux_schmt schmt)
625 {
626 	u32 *reg = DRV_REG(grp);
627 	u32 val;
628 
629 	/* NONE means unspecified/do not change/use POR value */
630 	if (schmt == PMUX_SCHMT_NONE)
631 		return;
632 
633 	/* Error check pad */
634 	assert(pmux_drvgrp_isvalid(grp));
635 	assert(pmux_schmt_isvalid(schmt));
636 
637 	val = readl(reg);
638 	if (schmt == PMUX_SCHMT_ENABLE)
639 		val |= (1 << SCHMT_SHIFT);
640 	else
641 		val &= ~(1 << SCHMT_SHIFT);
642 	writel(val, reg);
643 
644 	return;
645 }
646 #endif
647 
648 #ifdef TEGRA_PMX_GRPS_HAVE_HSM
649 static void pinmux_set_hsm(enum pmux_drvgrp grp, enum pmux_hsm hsm)
650 {
651 	u32 *reg = DRV_REG(grp);
652 	u32 val;
653 
654 	/* NONE means unspecified/do not change/use POR value */
655 	if (hsm == PMUX_HSM_NONE)
656 		return;
657 
658 	/* Error check pad */
659 	assert(pmux_drvgrp_isvalid(grp));
660 	assert(pmux_hsm_isvalid(hsm));
661 
662 	val = readl(reg);
663 	if (hsm == PMUX_HSM_ENABLE)
664 		val |= (1 << HSM_SHIFT);
665 	else
666 		val &= ~(1 << HSM_SHIFT);
667 	writel(val, reg);
668 
669 	return;
670 }
671 #endif
672 
673 static void pinmux_config_drvgrp(const struct pmux_drvgrp_config *config)
674 {
675 	enum pmux_drvgrp grp = config->drvgrp;
676 
677 	pinmux_set_drvup_slwf(grp, config->slwf);
678 	pinmux_set_drvdn_slwr(grp, config->slwr);
679 	pinmux_set_drvup(grp, config->drvup);
680 	pinmux_set_drvdn(grp, config->drvdn);
681 #ifdef TEGRA_PMX_GRPS_HAVE_LPMD
682 	pinmux_set_lpmd(grp, config->lpmd);
683 #endif
684 #ifdef TEGRA_PMX_GRPS_HAVE_SCHMT
685 	pinmux_set_schmt(grp, config->schmt);
686 #endif
687 #ifdef TEGRA_PMX_GRPS_HAVE_HSM
688 	pinmux_set_hsm(grp, config->hsm);
689 #endif
690 }
691 
692 void pinmux_config_drvgrp_table(const struct pmux_drvgrp_config *config,
693 				int len)
694 {
695 	int i;
696 
697 	for (i = 0; i < len; i++)
698 		pinmux_config_drvgrp(&config[i]);
699 }
700 #endif /* TEGRA_PMX_SOC_HAS_DRVGRPS */
701 
702 #ifdef TEGRA_PMX_SOC_HAS_MIPI_PAD_CTRL_GRPS
703 
704 #define pmux_mipipadctrlgrp_isvalid(pd) (((pd) >= 0) && ((pd) < PMUX_MIPIPADCTRLGRP_COUNT))
705 
706 static void pinmux_mipipadctrl_set_func(enum pmux_mipipadctrlgrp grp,
707 	enum pmux_func func)
708 {
709 	u32 *reg = MIPIPADCTRL_REG(grp);
710 	int i, mux = -1;
711 	u32 val;
712 
713 	if (func == PMUX_FUNC_DEFAULT)
714 		return;
715 
716 	/* Error check grp and func */
717 	assert(pmux_mipipadctrlgrp_isvalid(grp));
718 	assert(pmux_func_isvalid(func));
719 
720 	if (func >= PMUX_FUNC_RSVD1) {
721 		mux = (func - PMUX_FUNC_RSVD1) & 1;
722 	} else {
723 		/* Search for the appropriate function */
724 		for (i = 0; i < 2; i++) {
725 			if (tegra_soc_mipipadctrl_groups[grp].funcs[i]
726 			    == func) {
727 				mux = i;
728 				break;
729 			}
730 		}
731 	}
732 	assert(mux != -1);
733 
734 	val = readl(reg);
735 	val &= ~(1 << 1);
736 	val |= (mux << 1);
737 	writel(val, reg);
738 }
739 
740 static void pinmux_config_mipipadctrlgrp(const struct pmux_mipipadctrlgrp_config *config)
741 {
742 	enum pmux_mipipadctrlgrp grp = config->grp;
743 
744 	pinmux_mipipadctrl_set_func(grp, config->func);
745 }
746 
747 void pinmux_config_mipipadctrlgrp_table(
748 	const struct pmux_mipipadctrlgrp_config *config, int len)
749 {
750 	int i;
751 
752 	for (i = 0; i < len; i++)
753 		pinmux_config_mipipadctrlgrp(&config[i]);
754 }
755 #endif /* TEGRA_PMX_SOC_HAS_MIPI_PAD_CTRL_GRPS */
756