blob: 66f0ce11b68117e2b1cf65c94a386f06570e8a23 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0
Marek Vasut910df4d2017-09-15 21:13:55 +02002/*
3 * Pin Control driver for SuperH Pin Function Controller.
4 *
5 * Authors: Magnus Damm, Paul Mundt, Laurent Pinchart
6 *
7 * Copyright (C) 2008 Magnus Damm
8 * Copyright (C) 2009 - 2012 Paul Mundt
9 * Copyright (C) 2017 Marek Vasut
Marek Vasut910df4d2017-09-15 21:13:55 +020010 */
11
12#define DRV_NAME "sh-pfc"
13
14#include <common.h>
15#include <dm.h>
16#include <errno.h>
17#include <dm/pinctrl.h>
18#include <linux/io.h>
19#include <linux/sizes.h>
20
21#include "sh_pfc.h"
22
Marek Vasut910df4d2017-09-15 21:13:55 +020023enum sh_pfc_model {
Marek Vasut7547ad42018-01-17 22:18:59 +010024 SH_PFC_R8A7790 = 0,
Marek Vasut427c75d2018-01-17 17:14:45 +010025 SH_PFC_R8A7791,
Marek Vasutab2d09b42018-01-17 22:29:50 +010026 SH_PFC_R8A7792,
Marek Vasut427c75d2018-01-17 17:14:45 +010027 SH_PFC_R8A7793,
Marek Vasut34e93602018-01-17 22:33:59 +010028 SH_PFC_R8A7794,
Marek Vasut7547ad42018-01-17 22:18:59 +010029 SH_PFC_R8A7795,
Marek Vasut910df4d2017-09-15 21:13:55 +020030 SH_PFC_R8A7796,
Marek Vasutc106bb52017-10-09 20:57:29 +020031 SH_PFC_R8A77970,
Marek Vasuta59e6972017-10-08 20:57:37 +020032 SH_PFC_R8A77995,
Marek Vasut910df4d2017-09-15 21:13:55 +020033};
34
35struct sh_pfc_pin_config {
36 u32 type;
37};
38
39struct sh_pfc_pinctrl {
40 struct sh_pfc *pfc;
41
42 struct sh_pfc_pin_config *configs;
43
44 const char *func_prop_name;
45 const char *groups_prop_name;
46 const char *pins_prop_name;
47};
48
49struct sh_pfc_pin_range {
50 u16 start;
51 u16 end;
52};
53
54struct sh_pfc_pinctrl_priv {
55 struct sh_pfc pfc;
56 struct sh_pfc_pinctrl pmx;
57};
58
59int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin)
60{
61 unsigned int offset;
62 unsigned int i;
63
64 for (i = 0, offset = 0; i < pfc->nr_ranges; ++i) {
65 const struct sh_pfc_pin_range *range = &pfc->ranges[i];
66
67 if (pin <= range->end)
68 return pin >= range->start
69 ? offset + pin - range->start : -1;
70
71 offset += range->end - range->start + 1;
72 }
73
74 return -EINVAL;
75}
76
77static int sh_pfc_enum_in_range(u16 enum_id, const struct pinmux_range *r)
78{
79 if (enum_id < r->begin)
80 return 0;
81
82 if (enum_id > r->end)
83 return 0;
84
85 return 1;
86}
87
88u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned int reg_width)
89{
90 switch (reg_width) {
91 case 8:
92 return readb(mapped_reg);
93 case 16:
94 return readw(mapped_reg);
95 case 32:
96 return readl(mapped_reg);
97 }
98
99 BUG();
100 return 0;
101}
102
103void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned int reg_width,
104 u32 data)
105{
106 switch (reg_width) {
107 case 8:
108 writeb(data, mapped_reg);
109 return;
110 case 16:
111 writew(data, mapped_reg);
112 return;
113 case 32:
114 writel(data, mapped_reg);
115 return;
116 }
117
118 BUG();
119}
120
121u32 sh_pfc_read_reg(struct sh_pfc *pfc, u32 reg, unsigned int width)
122{
123 return sh_pfc_read_raw_reg(pfc->regs + reg, width);
124}
125
126void sh_pfc_write_reg(struct sh_pfc *pfc, u32 reg, unsigned int width, u32 data)
127{
128 void __iomem *unlock_reg =
129 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
130
131 if (pfc->info->unlock_reg)
132 sh_pfc_write_raw_reg(unlock_reg, 32, ~data);
133
134 sh_pfc_write_raw_reg(pfc->regs + reg, width, data);
135}
136
137static void sh_pfc_config_reg_helper(struct sh_pfc *pfc,
138 const struct pinmux_cfg_reg *crp,
139 unsigned int in_pos,
140 void __iomem **mapped_regp, u32 *maskp,
141 unsigned int *posp)
142{
143 unsigned int k;
144
145 *mapped_regp = (void __iomem *)(uintptr_t)crp->reg;
146
147 if (crp->field_width) {
148 *maskp = (1 << crp->field_width) - 1;
149 *posp = crp->reg_width - ((in_pos + 1) * crp->field_width);
150 } else {
151 *maskp = (1 << crp->var_field_width[in_pos]) - 1;
152 *posp = crp->reg_width;
153 for (k = 0; k <= in_pos; k++)
154 *posp -= crp->var_field_width[k];
155 }
156}
157
158static void sh_pfc_write_config_reg(struct sh_pfc *pfc,
159 const struct pinmux_cfg_reg *crp,
160 unsigned int field, u32 value)
161{
162 void __iomem *mapped_reg;
163 void __iomem *unlock_reg =
164 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
165 unsigned int pos;
166 u32 mask, data;
167
168 sh_pfc_config_reg_helper(pfc, crp, field, &mapped_reg, &mask, &pos);
169
170 dev_dbg(pfc->dev, "write_reg addr = %x, value = 0x%x, field = %u, "
171 "r_width = %u, f_width = %u\n",
172 crp->reg, value, field, crp->reg_width, crp->field_width);
173
174 mask = ~(mask << pos);
175 value = value << pos;
176
177 data = sh_pfc_read_raw_reg(mapped_reg, crp->reg_width);
178 data &= mask;
179 data |= value;
180
181 if (pfc->info->unlock_reg)
182 sh_pfc_write_raw_reg(unlock_reg, 32, ~data);
183
184 sh_pfc_write_raw_reg(mapped_reg, crp->reg_width, data);
185}
186
187static int sh_pfc_get_config_reg(struct sh_pfc *pfc, u16 enum_id,
188 const struct pinmux_cfg_reg **crp,
189 unsigned int *fieldp, u32 *valuep)
190{
191 unsigned int k = 0;
192
193 while (1) {
194 const struct pinmux_cfg_reg *config_reg =
195 pfc->info->cfg_regs + k;
196 unsigned int r_width = config_reg->reg_width;
197 unsigned int f_width = config_reg->field_width;
198 unsigned int curr_width;
199 unsigned int bit_pos;
200 unsigned int pos = 0;
201 unsigned int m = 0;
202
203 if (!r_width)
204 break;
205
206 for (bit_pos = 0; bit_pos < r_width; bit_pos += curr_width) {
207 u32 ncomb;
208 u32 n;
209
210 if (f_width)
211 curr_width = f_width;
212 else
213 curr_width = config_reg->var_field_width[m];
214
215 ncomb = 1 << curr_width;
216 for (n = 0; n < ncomb; n++) {
217 if (config_reg->enum_ids[pos + n] == enum_id) {
218 *crp = config_reg;
219 *fieldp = m;
220 *valuep = n;
221 return 0;
222 }
223 }
224 pos += ncomb;
225 m++;
226 }
227 k++;
228 }
229
230 return -EINVAL;
231}
232
233static int sh_pfc_mark_to_enum(struct sh_pfc *pfc, u16 mark, int pos,
234 u16 *enum_idp)
235{
236 const u16 *data = pfc->info->pinmux_data;
237 unsigned int k;
238
239 if (pos) {
240 *enum_idp = data[pos + 1];
241 return pos + 1;
242 }
243
244 for (k = 0; k < pfc->info->pinmux_data_size; k++) {
245 if (data[k] == mark) {
246 *enum_idp = data[k + 1];
247 return k + 1;
248 }
249 }
250
251 dev_err(pfc->dev, "cannot locate data/mark enum_id for mark %d\n",
252 mark);
253 return -EINVAL;
254}
255
256int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type)
257{
258 const struct pinmux_range *range;
259 int pos = 0;
260
261 switch (pinmux_type) {
262 case PINMUX_TYPE_GPIO:
263 case PINMUX_TYPE_FUNCTION:
264 range = NULL;
265 break;
266
267 case PINMUX_TYPE_OUTPUT:
268 range = &pfc->info->output;
269 break;
270
271 case PINMUX_TYPE_INPUT:
272 range = &pfc->info->input;
273 break;
274
275 default:
276 return -EINVAL;
277 }
278
279 /* Iterate over all the configuration fields we need to update. */
280 while (1) {
281 const struct pinmux_cfg_reg *cr;
282 unsigned int field;
283 u16 enum_id;
284 u32 value;
285 int in_range;
286 int ret;
287
288 pos = sh_pfc_mark_to_enum(pfc, mark, pos, &enum_id);
289 if (pos < 0)
290 return pos;
291
292 if (!enum_id)
293 break;
294
295 /* Check if the configuration field selects a function. If it
296 * doesn't, skip the field if it's not applicable to the
297 * requested pinmux type.
298 */
299 in_range = sh_pfc_enum_in_range(enum_id, &pfc->info->function);
300 if (!in_range) {
301 if (pinmux_type == PINMUX_TYPE_FUNCTION) {
302 /* Functions are allowed to modify all
303 * fields.
304 */
305 in_range = 1;
306 } else if (pinmux_type != PINMUX_TYPE_GPIO) {
307 /* Input/output types can only modify fields
308 * that correspond to their respective ranges.
309 */
310 in_range = sh_pfc_enum_in_range(enum_id, range);
311
312 /*
313 * special case pass through for fixed
314 * input-only or output-only pins without
315 * function enum register association.
316 */
317 if (in_range && enum_id == range->force)
318 continue;
319 }
320 /* GPIOs are only allowed to modify function fields. */
321 }
322
323 if (!in_range)
324 continue;
325
326 ret = sh_pfc_get_config_reg(pfc, enum_id, &cr, &field, &value);
327 if (ret < 0)
328 return ret;
329
330 sh_pfc_write_config_reg(pfc, cr, field, value);
331 }
332
333 return 0;
334}
335
336const struct sh_pfc_bias_info *
337sh_pfc_pin_to_bias_info(const struct sh_pfc_bias_info *info,
338 unsigned int num, unsigned int pin)
339{
340 unsigned int i;
341
342 for (i = 0; i < num; i++)
343 if (info[i].pin == pin)
344 return &info[i];
345
346 printf("Pin %u is not in bias info list\n", pin);
347
348 return NULL;
349}
350
351static int sh_pfc_init_ranges(struct sh_pfc *pfc)
352{
353 struct sh_pfc_pin_range *range;
354 unsigned int nr_ranges;
355 unsigned int i;
356
357 if (pfc->info->pins[0].pin == (u16)-1) {
358 /* Pin number -1 denotes that the SoC doesn't report pin numbers
359 * in its pin arrays yet. Consider the pin numbers range as
360 * continuous and allocate a single range.
361 */
362 pfc->nr_ranges = 1;
363 pfc->ranges = kzalloc(sizeof(*pfc->ranges), GFP_KERNEL);
364 if (pfc->ranges == NULL)
365 return -ENOMEM;
366
367 pfc->ranges->start = 0;
368 pfc->ranges->end = pfc->info->nr_pins - 1;
369 pfc->nr_gpio_pins = pfc->info->nr_pins;
370
371 return 0;
372 }
373
374 /* Count, allocate and fill the ranges. The PFC SoC data pins array must
375 * be sorted by pin numbers, and pins without a GPIO port must come
376 * last.
377 */
378 for (i = 1, nr_ranges = 1; i < pfc->info->nr_pins; ++i) {
379 if (pfc->info->pins[i-1].pin != pfc->info->pins[i].pin - 1)
380 nr_ranges++;
381 }
382
383 pfc->nr_ranges = nr_ranges;
384 pfc->ranges = kzalloc(sizeof(*pfc->ranges) * nr_ranges, GFP_KERNEL);
385 if (pfc->ranges == NULL)
386 return -ENOMEM;
387
388 range = pfc->ranges;
389 range->start = pfc->info->pins[0].pin;
390
391 for (i = 1; i < pfc->info->nr_pins; ++i) {
392 if (pfc->info->pins[i-1].pin == pfc->info->pins[i].pin - 1)
393 continue;
394
395 range->end = pfc->info->pins[i-1].pin;
396 if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))
397 pfc->nr_gpio_pins = range->end + 1;
398
399 range++;
400 range->start = pfc->info->pins[i].pin;
401 }
402
403 range->end = pfc->info->pins[i-1].pin;
404 if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))
405 pfc->nr_gpio_pins = range->end + 1;
406
407 return 0;
408}
409
410static int sh_pfc_pinctrl_get_pins_count(struct udevice *dev)
411{
412 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
413
414 return priv->pfc.info->nr_pins;
415}
416
417static const char *sh_pfc_pinctrl_get_pin_name(struct udevice *dev,
418 unsigned selector)
419{
420 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
421
422 return priv->pfc.info->pins[selector].name;
423}
424
425static int sh_pfc_pinctrl_get_groups_count(struct udevice *dev)
426{
427 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
428
429 return priv->pfc.info->nr_groups;
430}
431
432static const char *sh_pfc_pinctrl_get_group_name(struct udevice *dev,
433 unsigned selector)
434{
435 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
436
437 return priv->pfc.info->groups[selector].name;
438}
439
440static int sh_pfc_pinctrl_get_functions_count(struct udevice *dev)
441{
442 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
443
444 return priv->pfc.info->nr_functions;
445}
446
447static const char *sh_pfc_pinctrl_get_function_name(struct udevice *dev,
448 unsigned selector)
449{
450 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
451
452 return priv->pfc.info->functions[selector].name;
453}
454
Marek Vasutf6e545a2017-11-26 18:07:29 +0100455int sh_pfc_config_mux_for_gpio(struct udevice *dev, unsigned pin_selector)
456{
457 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
458 struct sh_pfc_pinctrl *pmx = &priv->pmx;
459 struct sh_pfc *pfc = &priv->pfc;
460 struct sh_pfc_pin_config *cfg;
461 const struct sh_pfc_pin *pin = NULL;
462 int i, idx;
463
464 for (i = 1; i < pfc->info->nr_pins; i++) {
465 if (priv->pfc.info->pins[i].pin != pin_selector)
466 continue;
467
468 pin = &priv->pfc.info->pins[i];
469 break;
470 }
471
472 if (!pin)
473 return -EINVAL;
474
475 idx = sh_pfc_get_pin_index(pfc, pin->pin);
476 cfg = &pmx->configs[idx];
477
478 if (cfg->type != PINMUX_TYPE_NONE)
479 return -EBUSY;
480
481 return sh_pfc_config_mux(pfc, pin->enum_id, PINMUX_TYPE_GPIO);
482}
483
Marek Vasut2489bb52017-11-26 17:42:16 +0100484static int sh_pfc_pinctrl_pin_set(struct udevice *dev, unsigned pin_selector,
485 unsigned func_selector)
486{
487 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
488 struct sh_pfc_pinctrl *pmx = &priv->pmx;
489 struct sh_pfc *pfc = &priv->pfc;
490 const struct sh_pfc_pin *pin = &priv->pfc.info->pins[pin_selector];
491 int idx = sh_pfc_get_pin_index(pfc, pin->pin);
492 struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
493
494 if (cfg->type != PINMUX_TYPE_NONE)
495 return -EBUSY;
496
497 return sh_pfc_config_mux(pfc, pin->enum_id, PINMUX_TYPE_FUNCTION);
498}
499
Marek Vasut910df4d2017-09-15 21:13:55 +0200500static int sh_pfc_pinctrl_group_set(struct udevice *dev, unsigned group_selector,
501 unsigned func_selector)
502{
503 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
504 struct sh_pfc_pinctrl *pmx = &priv->pmx;
505 struct sh_pfc *pfc = &priv->pfc;
506 const struct sh_pfc_pin_group *grp = &priv->pfc.info->groups[group_selector];
507 unsigned int i;
508 int ret = 0;
509
510 for (i = 0; i < grp->nr_pins; ++i) {
511 int idx = sh_pfc_get_pin_index(pfc, grp->pins[i]);
512 struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
513
514 if (cfg->type != PINMUX_TYPE_NONE) {
515 ret = -EBUSY;
516 goto done;
517 }
518 }
519
520 for (i = 0; i < grp->nr_pins; ++i) {
521 ret = sh_pfc_config_mux(pfc, grp->mux[i], PINMUX_TYPE_FUNCTION);
522 if (ret < 0)
523 break;
524 }
525
526done:
527 return ret;
528}
Marek Vasutd52132c2017-09-28 00:56:24 +0200529#if CONFIG_IS_ENABLED(PINCONF)
530static const struct pinconf_param sh_pfc_pinconf_params[] = {
531 { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
532 { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
533 { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
534 { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 },
535 { "power-source", PIN_CONFIG_POWER_SOURCE, 3300 },
536};
537
538static void __iomem *
539sh_pfc_pinconf_find_drive_strength_reg(struct sh_pfc *pfc, unsigned int pin,
540 unsigned int *offset, unsigned int *size)
541{
542 const struct pinmux_drive_reg_field *field;
543 const struct pinmux_drive_reg *reg;
544 unsigned int i;
545
546 for (reg = pfc->info->drive_regs; reg->reg; ++reg) {
547 for (i = 0; i < ARRAY_SIZE(reg->fields); ++i) {
548 field = &reg->fields[i];
549
550 if (field->size && field->pin == pin) {
551 *offset = field->offset;
552 *size = field->size;
553
554 return (void __iomem *)(uintptr_t)reg->reg;
555 }
556 }
557 }
558
559 return NULL;
560}
561
562static int sh_pfc_pinconf_set_drive_strength(struct sh_pfc *pfc,
563 unsigned int pin, u16 strength)
564{
565 unsigned int offset;
566 unsigned int size;
567 unsigned int step;
568 void __iomem *reg;
569 void __iomem *unlock_reg =
570 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
571 u32 val;
572
573 reg = sh_pfc_pinconf_find_drive_strength_reg(pfc, pin, &offset, &size);
574 if (!reg)
575 return -EINVAL;
576
577 step = size == 2 ? 6 : 3;
578
579 if (strength < step || strength > 24)
580 return -EINVAL;
581
582 /* Convert the value from mA based on a full drive strength value of
583 * 24mA. We can make the full value configurable later if needed.
584 */
585 strength = strength / step - 1;
586
587 val = sh_pfc_read_raw_reg(reg, 32);
588 val &= ~GENMASK(offset + size - 1, offset);
589 val |= strength << offset;
590
591 if (unlock_reg)
592 sh_pfc_write_raw_reg(unlock_reg, 32, ~val);
593
594 sh_pfc_write_raw_reg(reg, 32, val);
595
596 return 0;
597}
598
599/* Check whether the requested parameter is supported for a pin. */
600static bool sh_pfc_pinconf_validate(struct sh_pfc *pfc, unsigned int _pin,
601 unsigned int param)
602{
603 int idx = sh_pfc_get_pin_index(pfc, _pin);
604 const struct sh_pfc_pin *pin = &pfc->info->pins[idx];
605
606 switch (param) {
607 case PIN_CONFIG_BIAS_DISABLE:
608 return pin->configs &
609 (SH_PFC_PIN_CFG_PULL_UP | SH_PFC_PIN_CFG_PULL_DOWN);
610
611 case PIN_CONFIG_BIAS_PULL_UP:
612 return pin->configs & SH_PFC_PIN_CFG_PULL_UP;
613
614 case PIN_CONFIG_BIAS_PULL_DOWN:
615 return pin->configs & SH_PFC_PIN_CFG_PULL_DOWN;
616
617 case PIN_CONFIG_DRIVE_STRENGTH:
618 return pin->configs & SH_PFC_PIN_CFG_DRIVE_STRENGTH;
619
620 case PIN_CONFIG_POWER_SOURCE:
621 return pin->configs & SH_PFC_PIN_CFG_IO_VOLTAGE;
622
623 default:
624 return false;
625 }
626}
627
628static int sh_pfc_pinconf_set(struct sh_pfc_pinctrl *pmx, unsigned _pin,
629 unsigned int param, unsigned int arg)
630{
631 struct sh_pfc *pfc = pmx->pfc;
632 void __iomem *pocctrl;
633 void __iomem *unlock_reg =
634 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
635 u32 addr, val;
636 int bit, ret;
637
638 if (!sh_pfc_pinconf_validate(pfc, _pin, param))
639 return -ENOTSUPP;
640
641 switch (param) {
642 case PIN_CONFIG_BIAS_PULL_UP:
643 case PIN_CONFIG_BIAS_PULL_DOWN:
644 case PIN_CONFIG_BIAS_DISABLE:
645 if (!pfc->info->ops || !pfc->info->ops->set_bias)
646 return -ENOTSUPP;
647
648 pfc->info->ops->set_bias(pfc, _pin, param);
649
650 break;
651
652 case PIN_CONFIG_DRIVE_STRENGTH:
653 ret = sh_pfc_pinconf_set_drive_strength(pfc, _pin, arg);
654 if (ret < 0)
655 return ret;
656
657 break;
658
659 case PIN_CONFIG_POWER_SOURCE:
660 if (!pfc->info->ops || !pfc->info->ops->pin_to_pocctrl)
661 return -ENOTSUPP;
662
663 bit = pfc->info->ops->pin_to_pocctrl(pfc, _pin, &addr);
664 if (bit < 0) {
665 printf("invalid pin %#x", _pin);
666 return bit;
667 }
668
669 if (arg != 1800 && arg != 3300)
670 return -EINVAL;
671
672 pocctrl = (void __iomem *)(uintptr_t)addr;
673
674 val = sh_pfc_read_raw_reg(pocctrl, 32);
675 if (arg == 3300)
676 val |= BIT(bit);
677 else
678 val &= ~BIT(bit);
679
680 if (unlock_reg)
681 sh_pfc_write_raw_reg(unlock_reg, 32, ~val);
682
683 sh_pfc_write_raw_reg(pocctrl, 32, val);
684
685 break;
686
687 default:
688 return -ENOTSUPP;
689 }
690
691 return 0;
692}
693
Marek Vasut2489bb52017-11-26 17:42:16 +0100694static int sh_pfc_pinconf_pin_set(struct udevice *dev,
695 unsigned int pin_selector,
696 unsigned int param, unsigned int arg)
697{
698 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
699 struct sh_pfc_pinctrl *pmx = &priv->pmx;
700 struct sh_pfc *pfc = &priv->pfc;
701 const struct sh_pfc_pin *pin = &pfc->info->pins[pin_selector];
702
703 sh_pfc_pinconf_set(pmx, pin->pin, param, arg);
704
705 return 0;
706}
Marek Vasutd52132c2017-09-28 00:56:24 +0200707
708static int sh_pfc_pinconf_group_set(struct udevice *dev,
709 unsigned int group_selector,
710 unsigned int param, unsigned int arg)
711{
712 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
713 struct sh_pfc_pinctrl *pmx = &priv->pmx;
714 struct sh_pfc *pfc = &priv->pfc;
715 const struct sh_pfc_pin_group *grp = &pfc->info->groups[group_selector];
716 unsigned int i;
717
718 for (i = 0; i < grp->nr_pins; i++)
719 sh_pfc_pinconf_set(pmx, grp->pins[i], param, arg);
720
721 return 0;
722}
723#endif
Marek Vasut910df4d2017-09-15 21:13:55 +0200724
725static struct pinctrl_ops sh_pfc_pinctrl_ops = {
726 .get_pins_count = sh_pfc_pinctrl_get_pins_count,
727 .get_pin_name = sh_pfc_pinctrl_get_pin_name,
728 .get_groups_count = sh_pfc_pinctrl_get_groups_count,
729 .get_group_name = sh_pfc_pinctrl_get_group_name,
730 .get_functions_count = sh_pfc_pinctrl_get_functions_count,
731 .get_function_name = sh_pfc_pinctrl_get_function_name,
732
Marek Vasutd52132c2017-09-28 00:56:24 +0200733#if CONFIG_IS_ENABLED(PINCONF)
734 .pinconf_num_params = ARRAY_SIZE(sh_pfc_pinconf_params),
735 .pinconf_params = sh_pfc_pinconf_params,
Marek Vasut2489bb52017-11-26 17:42:16 +0100736 .pinconf_set = sh_pfc_pinconf_pin_set,
Marek Vasutd52132c2017-09-28 00:56:24 +0200737 .pinconf_group_set = sh_pfc_pinconf_group_set,
738#endif
Marek Vasut2489bb52017-11-26 17:42:16 +0100739 .pinmux_set = sh_pfc_pinctrl_pin_set,
Marek Vasut910df4d2017-09-15 21:13:55 +0200740 .pinmux_group_set = sh_pfc_pinctrl_group_set,
741 .set_state = pinctrl_generic_set_state,
742};
743
744static int sh_pfc_map_pins(struct sh_pfc *pfc, struct sh_pfc_pinctrl *pmx)
745{
746 unsigned int i;
747
748 /* Allocate and initialize the pins and configs arrays. */
749 pmx->configs = kzalloc(sizeof(*pmx->configs) * pfc->info->nr_pins,
750 GFP_KERNEL);
751 if (unlikely(!pmx->configs))
752 return -ENOMEM;
753
754 for (i = 0; i < pfc->info->nr_pins; ++i) {
755 struct sh_pfc_pin_config *cfg = &pmx->configs[i];
756 cfg->type = PINMUX_TYPE_NONE;
757 }
758
759 return 0;
760}
761
762
763static int sh_pfc_pinctrl_probe(struct udevice *dev)
764{
765 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
766 enum sh_pfc_model model = dev_get_driver_data(dev);
767 fdt_addr_t base;
768
769 base = devfdt_get_addr(dev);
770 if (base == FDT_ADDR_T_NONE)
771 return -EINVAL;
772
773 priv->pfc.regs = devm_ioremap(dev, base, SZ_2K);
774 if (!priv->pfc.regs)
775 return -ENOMEM;
776
Marek Vasut7547ad42018-01-17 22:18:59 +0100777#ifdef CONFIG_PINCTRL_PFC_R8A7790
778 if (model == SH_PFC_R8A7790)
779 priv->pfc.info = &r8a7790_pinmux_info;
780#endif
Marek Vasut427c75d2018-01-17 17:14:45 +0100781#ifdef CONFIG_PINCTRL_PFC_R8A7791
782 if (model == SH_PFC_R8A7791)
783 priv->pfc.info = &r8a7791_pinmux_info;
784#endif
Marek Vasutab2d09b42018-01-17 22:29:50 +0100785#ifdef CONFIG_PINCTRL_PFC_R8A7792
786 if (model == SH_PFC_R8A7792)
787 priv->pfc.info = &r8a7792_pinmux_info;
788#endif
Marek Vasut427c75d2018-01-17 17:14:45 +0100789#ifdef CONFIG_PINCTRL_PFC_R8A7793
790 if (model == SH_PFC_R8A7793)
791 priv->pfc.info = &r8a7793_pinmux_info;
792#endif
Marek Vasut34e93602018-01-17 22:33:59 +0100793#ifdef CONFIG_PINCTRL_PFC_R8A7794
794 if (model == SH_PFC_R8A7794)
795 priv->pfc.info = &r8a7794_pinmux_info;
796#endif
Marek Vasut910df4d2017-09-15 21:13:55 +0200797#ifdef CONFIG_PINCTRL_PFC_R8A7795
798 if (model == SH_PFC_R8A7795)
799 priv->pfc.info = &r8a7795_pinmux_info;
800#endif
801#ifdef CONFIG_PINCTRL_PFC_R8A7796
802 if (model == SH_PFC_R8A7796)
803 priv->pfc.info = &r8a7796_pinmux_info;
804#endif
Marek Vasutc106bb52017-10-09 20:57:29 +0200805#ifdef CONFIG_PINCTRL_PFC_R8A77970
806 if (model == SH_PFC_R8A77970)
807 priv->pfc.info = &r8a77970_pinmux_info;
808#endif
Marek Vasuta59e6972017-10-08 20:57:37 +0200809#ifdef CONFIG_PINCTRL_PFC_R8A77995
810 if (model == SH_PFC_R8A77995)
811 priv->pfc.info = &r8a77995_pinmux_info;
812#endif
Marek Vasut910df4d2017-09-15 21:13:55 +0200813
814 priv->pmx.pfc = &priv->pfc;
815 sh_pfc_init_ranges(&priv->pfc);
816 sh_pfc_map_pins(&priv->pfc, &priv->pmx);
817
818 return 0;
819}
820
821static const struct udevice_id sh_pfc_pinctrl_ids[] = {
Marek Vasut7547ad42018-01-17 22:18:59 +0100822#ifdef CONFIG_PINCTRL_PFC_R8A7790
823 {
824 .compatible = "renesas,pfc-r8a7790",
825 .data = SH_PFC_R8A7790,
826 },
827#endif
Marek Vasut427c75d2018-01-17 17:14:45 +0100828#ifdef CONFIG_PINCTRL_PFC_R8A7791
829 {
830 .compatible = "renesas,pfc-r8a7791",
831 .data = SH_PFC_R8A7791,
832 },
833#endif
Marek Vasutab2d09b42018-01-17 22:29:50 +0100834#ifdef CONFIG_PINCTRL_PFC_R8A7792
835 {
836 .compatible = "renesas,pfc-r8a7792",
837 .data = SH_PFC_R8A7792,
838 },
839#endif
Marek Vasut427c75d2018-01-17 17:14:45 +0100840#ifdef CONFIG_PINCTRL_PFC_R8A7793
841 {
842 .compatible = "renesas,pfc-r8a7793",
843 .data = SH_PFC_R8A7793,
844 },
845#endif
Marek Vasut34e93602018-01-17 22:33:59 +0100846#ifdef CONFIG_PINCTRL_PFC_R8A7794
847 {
848 .compatible = "renesas,pfc-r8a7794",
849 .data = SH_PFC_R8A7794,
850 },
851#endif
Marek Vasut910df4d2017-09-15 21:13:55 +0200852#ifdef CONFIG_PINCTRL_PFC_R8A7795
853 {
854 .compatible = "renesas,pfc-r8a7795",
855 .data = SH_PFC_R8A7795,
856 },
857#endif
858#ifdef CONFIG_PINCTRL_PFC_R8A7796
859 {
860 .compatible = "renesas,pfc-r8a7796",
861 .data = SH_PFC_R8A7796,
Marek Vasutd1fe3182018-02-26 10:35:15 +0100862 }, {
863 .compatible = "renesas,pfc-r8a77965",
864 .data = SH_PFC_R8A7796,
Marek Vasut910df4d2017-09-15 21:13:55 +0200865 },
866#endif
Marek Vasutc106bb52017-10-09 20:57:29 +0200867#ifdef CONFIG_PINCTRL_PFC_R8A77970
868 {
869 .compatible = "renesas,pfc-r8a77970",
870 .data = SH_PFC_R8A77970,
871 },
872#endif
Marek Vasuta59e6972017-10-08 20:57:37 +0200873#ifdef CONFIG_PINCTRL_PFC_R8A77995
874 {
875 .compatible = "renesas,pfc-r8a77995",
876 .data = SH_PFC_R8A77995,
877 },
878#endif
Marek Vasut910df4d2017-09-15 21:13:55 +0200879 { },
880};
881
882U_BOOT_DRIVER(pinctrl_sh_pfc) = {
883 .name = "sh_pfc_pinctrl",
884 .id = UCLASS_PINCTRL,
885 .of_match = sh_pfc_pinctrl_ids,
886 .priv_auto_alloc_size = sizeof(struct sh_pfc_pinctrl_priv),
887 .ops = &sh_pfc_pinctrl_ops,
888 .probe = sh_pfc_pinctrl_probe,
889};