blob: 7d2e3261488e5c03ba445933b6b81aeb74076d92 [file] [log] [blame]
Marek Vasut3066a062017-09-15 21:13:55 +02001/*
2 * Pin Control driver for SuperH Pin Function Controller.
3 *
4 * Authors: Magnus Damm, Paul Mundt, Laurent Pinchart
5 *
6 * Copyright (C) 2008 Magnus Damm
7 * Copyright (C) 2009 - 2012 Paul Mundt
8 * Copyright (C) 2017 Marek Vasut
9 *
10 * SPDX-License-Identifier: GPL-2.0
11 */
12
13#define DRV_NAME "sh-pfc"
14
15#include <common.h>
16#include <dm.h>
17#include <errno.h>
18#include <dm/pinctrl.h>
19#include <linux/io.h>
20#include <linux/sizes.h>
21
22#include "sh_pfc.h"
23
Marek Vasut3066a062017-09-15 21:13:55 +020024enum sh_pfc_model {
Marek Vasutc40f2d62018-01-17 22:18:59 +010025 SH_PFC_R8A7790 = 0,
Marek Vasut06ef9e82018-01-17 17:14:45 +010026 SH_PFC_R8A7791,
Marek Vasut1ef39302018-01-17 22:29:50 +010027 SH_PFC_R8A7792,
Marek Vasut06ef9e82018-01-17 17:14:45 +010028 SH_PFC_R8A7793,
Marek Vasut4dd88d52018-01-17 22:33:59 +010029 SH_PFC_R8A7794,
Marek Vasutc40f2d62018-01-17 22:18:59 +010030 SH_PFC_R8A7795,
Marek Vasut3066a062017-09-15 21:13:55 +020031 SH_PFC_R8A7796,
Marek Vasuta0e11e52017-10-09 20:57:29 +020032 SH_PFC_R8A77970,
Marek Vasut7d35e642017-10-08 20:57:37 +020033 SH_PFC_R8A77995,
Marek Vasut3066a062017-09-15 21:13:55 +020034};
35
36struct sh_pfc_pin_config {
37 u32 type;
38};
39
40struct sh_pfc_pinctrl {
41 struct sh_pfc *pfc;
42
43 struct sh_pfc_pin_config *configs;
44
45 const char *func_prop_name;
46 const char *groups_prop_name;
47 const char *pins_prop_name;
48};
49
50struct sh_pfc_pin_range {
51 u16 start;
52 u16 end;
53};
54
55struct sh_pfc_pinctrl_priv {
56 struct sh_pfc pfc;
57 struct sh_pfc_pinctrl pmx;
58};
59
60int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin)
61{
62 unsigned int offset;
63 unsigned int i;
64
65 for (i = 0, offset = 0; i < pfc->nr_ranges; ++i) {
66 const struct sh_pfc_pin_range *range = &pfc->ranges[i];
67
68 if (pin <= range->end)
69 return pin >= range->start
70 ? offset + pin - range->start : -1;
71
72 offset += range->end - range->start + 1;
73 }
74
75 return -EINVAL;
76}
77
78static int sh_pfc_enum_in_range(u16 enum_id, const struct pinmux_range *r)
79{
80 if (enum_id < r->begin)
81 return 0;
82
83 if (enum_id > r->end)
84 return 0;
85
86 return 1;
87}
88
89u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned int reg_width)
90{
91 switch (reg_width) {
92 case 8:
93 return readb(mapped_reg);
94 case 16:
95 return readw(mapped_reg);
96 case 32:
97 return readl(mapped_reg);
98 }
99
100 BUG();
101 return 0;
102}
103
104void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned int reg_width,
105 u32 data)
106{
107 switch (reg_width) {
108 case 8:
109 writeb(data, mapped_reg);
110 return;
111 case 16:
112 writew(data, mapped_reg);
113 return;
114 case 32:
115 writel(data, mapped_reg);
116 return;
117 }
118
119 BUG();
120}
121
122u32 sh_pfc_read_reg(struct sh_pfc *pfc, u32 reg, unsigned int width)
123{
124 return sh_pfc_read_raw_reg(pfc->regs + reg, width);
125}
126
127void sh_pfc_write_reg(struct sh_pfc *pfc, u32 reg, unsigned int width, u32 data)
128{
129 void __iomem *unlock_reg =
130 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
131
132 if (pfc->info->unlock_reg)
133 sh_pfc_write_raw_reg(unlock_reg, 32, ~data);
134
135 sh_pfc_write_raw_reg(pfc->regs + reg, width, data);
136}
137
138static void sh_pfc_config_reg_helper(struct sh_pfc *pfc,
139 const struct pinmux_cfg_reg *crp,
140 unsigned int in_pos,
141 void __iomem **mapped_regp, u32 *maskp,
142 unsigned int *posp)
143{
144 unsigned int k;
145
146 *mapped_regp = (void __iomem *)(uintptr_t)crp->reg;
147
148 if (crp->field_width) {
149 *maskp = (1 << crp->field_width) - 1;
150 *posp = crp->reg_width - ((in_pos + 1) * crp->field_width);
151 } else {
152 *maskp = (1 << crp->var_field_width[in_pos]) - 1;
153 *posp = crp->reg_width;
154 for (k = 0; k <= in_pos; k++)
155 *posp -= crp->var_field_width[k];
156 }
157}
158
159static void sh_pfc_write_config_reg(struct sh_pfc *pfc,
160 const struct pinmux_cfg_reg *crp,
161 unsigned int field, u32 value)
162{
163 void __iomem *mapped_reg;
164 void __iomem *unlock_reg =
165 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
166 unsigned int pos;
167 u32 mask, data;
168
169 sh_pfc_config_reg_helper(pfc, crp, field, &mapped_reg, &mask, &pos);
170
171 dev_dbg(pfc->dev, "write_reg addr = %x, value = 0x%x, field = %u, "
172 "r_width = %u, f_width = %u\n",
173 crp->reg, value, field, crp->reg_width, crp->field_width);
174
175 mask = ~(mask << pos);
176 value = value << pos;
177
178 data = sh_pfc_read_raw_reg(mapped_reg, crp->reg_width);
179 data &= mask;
180 data |= value;
181
182 if (pfc->info->unlock_reg)
183 sh_pfc_write_raw_reg(unlock_reg, 32, ~data);
184
185 sh_pfc_write_raw_reg(mapped_reg, crp->reg_width, data);
186}
187
188static int sh_pfc_get_config_reg(struct sh_pfc *pfc, u16 enum_id,
189 const struct pinmux_cfg_reg **crp,
190 unsigned int *fieldp, u32 *valuep)
191{
192 unsigned int k = 0;
193
194 while (1) {
195 const struct pinmux_cfg_reg *config_reg =
196 pfc->info->cfg_regs + k;
197 unsigned int r_width = config_reg->reg_width;
198 unsigned int f_width = config_reg->field_width;
199 unsigned int curr_width;
200 unsigned int bit_pos;
201 unsigned int pos = 0;
202 unsigned int m = 0;
203
204 if (!r_width)
205 break;
206
207 for (bit_pos = 0; bit_pos < r_width; bit_pos += curr_width) {
208 u32 ncomb;
209 u32 n;
210
211 if (f_width)
212 curr_width = f_width;
213 else
214 curr_width = config_reg->var_field_width[m];
215
216 ncomb = 1 << curr_width;
217 for (n = 0; n < ncomb; n++) {
218 if (config_reg->enum_ids[pos + n] == enum_id) {
219 *crp = config_reg;
220 *fieldp = m;
221 *valuep = n;
222 return 0;
223 }
224 }
225 pos += ncomb;
226 m++;
227 }
228 k++;
229 }
230
231 return -EINVAL;
232}
233
234static int sh_pfc_mark_to_enum(struct sh_pfc *pfc, u16 mark, int pos,
235 u16 *enum_idp)
236{
237 const u16 *data = pfc->info->pinmux_data;
238 unsigned int k;
239
240 if (pos) {
241 *enum_idp = data[pos + 1];
242 return pos + 1;
243 }
244
245 for (k = 0; k < pfc->info->pinmux_data_size; k++) {
246 if (data[k] == mark) {
247 *enum_idp = data[k + 1];
248 return k + 1;
249 }
250 }
251
252 dev_err(pfc->dev, "cannot locate data/mark enum_id for mark %d\n",
253 mark);
254 return -EINVAL;
255}
256
257int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type)
258{
259 const struct pinmux_range *range;
260 int pos = 0;
261
262 switch (pinmux_type) {
263 case PINMUX_TYPE_GPIO:
264 case PINMUX_TYPE_FUNCTION:
265 range = NULL;
266 break;
267
268 case PINMUX_TYPE_OUTPUT:
269 range = &pfc->info->output;
270 break;
271
272 case PINMUX_TYPE_INPUT:
273 range = &pfc->info->input;
274 break;
275
276 default:
277 return -EINVAL;
278 }
279
280 /* Iterate over all the configuration fields we need to update. */
281 while (1) {
282 const struct pinmux_cfg_reg *cr;
283 unsigned int field;
284 u16 enum_id;
285 u32 value;
286 int in_range;
287 int ret;
288
289 pos = sh_pfc_mark_to_enum(pfc, mark, pos, &enum_id);
290 if (pos < 0)
291 return pos;
292
293 if (!enum_id)
294 break;
295
296 /* Check if the configuration field selects a function. If it
297 * doesn't, skip the field if it's not applicable to the
298 * requested pinmux type.
299 */
300 in_range = sh_pfc_enum_in_range(enum_id, &pfc->info->function);
301 if (!in_range) {
302 if (pinmux_type == PINMUX_TYPE_FUNCTION) {
303 /* Functions are allowed to modify all
304 * fields.
305 */
306 in_range = 1;
307 } else if (pinmux_type != PINMUX_TYPE_GPIO) {
308 /* Input/output types can only modify fields
309 * that correspond to their respective ranges.
310 */
311 in_range = sh_pfc_enum_in_range(enum_id, range);
312
313 /*
314 * special case pass through for fixed
315 * input-only or output-only pins without
316 * function enum register association.
317 */
318 if (in_range && enum_id == range->force)
319 continue;
320 }
321 /* GPIOs are only allowed to modify function fields. */
322 }
323
324 if (!in_range)
325 continue;
326
327 ret = sh_pfc_get_config_reg(pfc, enum_id, &cr, &field, &value);
328 if (ret < 0)
329 return ret;
330
331 sh_pfc_write_config_reg(pfc, cr, field, value);
332 }
333
334 return 0;
335}
336
337const struct sh_pfc_bias_info *
338sh_pfc_pin_to_bias_info(const struct sh_pfc_bias_info *info,
339 unsigned int num, unsigned int pin)
340{
341 unsigned int i;
342
343 for (i = 0; i < num; i++)
344 if (info[i].pin == pin)
345 return &info[i];
346
347 printf("Pin %u is not in bias info list\n", pin);
348
349 return NULL;
350}
351
352static int sh_pfc_init_ranges(struct sh_pfc *pfc)
353{
354 struct sh_pfc_pin_range *range;
355 unsigned int nr_ranges;
356 unsigned int i;
357
358 if (pfc->info->pins[0].pin == (u16)-1) {
359 /* Pin number -1 denotes that the SoC doesn't report pin numbers
360 * in its pin arrays yet. Consider the pin numbers range as
361 * continuous and allocate a single range.
362 */
363 pfc->nr_ranges = 1;
364 pfc->ranges = kzalloc(sizeof(*pfc->ranges), GFP_KERNEL);
365 if (pfc->ranges == NULL)
366 return -ENOMEM;
367
368 pfc->ranges->start = 0;
369 pfc->ranges->end = pfc->info->nr_pins - 1;
370 pfc->nr_gpio_pins = pfc->info->nr_pins;
371
372 return 0;
373 }
374
375 /* Count, allocate and fill the ranges. The PFC SoC data pins array must
376 * be sorted by pin numbers, and pins without a GPIO port must come
377 * last.
378 */
379 for (i = 1, nr_ranges = 1; i < pfc->info->nr_pins; ++i) {
380 if (pfc->info->pins[i-1].pin != pfc->info->pins[i].pin - 1)
381 nr_ranges++;
382 }
383
384 pfc->nr_ranges = nr_ranges;
385 pfc->ranges = kzalloc(sizeof(*pfc->ranges) * nr_ranges, GFP_KERNEL);
386 if (pfc->ranges == NULL)
387 return -ENOMEM;
388
389 range = pfc->ranges;
390 range->start = pfc->info->pins[0].pin;
391
392 for (i = 1; i < pfc->info->nr_pins; ++i) {
393 if (pfc->info->pins[i-1].pin == pfc->info->pins[i].pin - 1)
394 continue;
395
396 range->end = pfc->info->pins[i-1].pin;
397 if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))
398 pfc->nr_gpio_pins = range->end + 1;
399
400 range++;
401 range->start = pfc->info->pins[i].pin;
402 }
403
404 range->end = pfc->info->pins[i-1].pin;
405 if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))
406 pfc->nr_gpio_pins = range->end + 1;
407
408 return 0;
409}
410
411static int sh_pfc_pinctrl_get_pins_count(struct udevice *dev)
412{
413 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
414
415 return priv->pfc.info->nr_pins;
416}
417
418static const char *sh_pfc_pinctrl_get_pin_name(struct udevice *dev,
419 unsigned selector)
420{
421 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
422
423 return priv->pfc.info->pins[selector].name;
424}
425
426static int sh_pfc_pinctrl_get_groups_count(struct udevice *dev)
427{
428 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
429
430 return priv->pfc.info->nr_groups;
431}
432
433static const char *sh_pfc_pinctrl_get_group_name(struct udevice *dev,
434 unsigned selector)
435{
436 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
437
438 return priv->pfc.info->groups[selector].name;
439}
440
441static int sh_pfc_pinctrl_get_functions_count(struct udevice *dev)
442{
443 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
444
445 return priv->pfc.info->nr_functions;
446}
447
448static const char *sh_pfc_pinctrl_get_function_name(struct udevice *dev,
449 unsigned selector)
450{
451 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
452
453 return priv->pfc.info->functions[selector].name;
454}
455
Marek Vasut489d79c2017-11-26 18:07:29 +0100456int sh_pfc_config_mux_for_gpio(struct udevice *dev, unsigned pin_selector)
457{
458 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
459 struct sh_pfc_pinctrl *pmx = &priv->pmx;
460 struct sh_pfc *pfc = &priv->pfc;
461 struct sh_pfc_pin_config *cfg;
462 const struct sh_pfc_pin *pin = NULL;
463 int i, idx;
464
465 for (i = 1; i < pfc->info->nr_pins; i++) {
466 if (priv->pfc.info->pins[i].pin != pin_selector)
467 continue;
468
469 pin = &priv->pfc.info->pins[i];
470 break;
471 }
472
473 if (!pin)
474 return -EINVAL;
475
476 idx = sh_pfc_get_pin_index(pfc, pin->pin);
477 cfg = &pmx->configs[idx];
478
479 if (cfg->type != PINMUX_TYPE_NONE)
480 return -EBUSY;
481
482 return sh_pfc_config_mux(pfc, pin->enum_id, PINMUX_TYPE_GPIO);
483}
484
Marek Vasut5e6db842017-11-26 17:42:16 +0100485static int sh_pfc_pinctrl_pin_set(struct udevice *dev, unsigned pin_selector,
486 unsigned func_selector)
487{
488 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
489 struct sh_pfc_pinctrl *pmx = &priv->pmx;
490 struct sh_pfc *pfc = &priv->pfc;
491 const struct sh_pfc_pin *pin = &priv->pfc.info->pins[pin_selector];
492 int idx = sh_pfc_get_pin_index(pfc, pin->pin);
493 struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
494
495 if (cfg->type != PINMUX_TYPE_NONE)
496 return -EBUSY;
497
498 return sh_pfc_config_mux(pfc, pin->enum_id, PINMUX_TYPE_FUNCTION);
499}
500
Marek Vasut3066a062017-09-15 21:13:55 +0200501static int sh_pfc_pinctrl_group_set(struct udevice *dev, unsigned group_selector,
502 unsigned func_selector)
503{
504 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
505 struct sh_pfc_pinctrl *pmx = &priv->pmx;
506 struct sh_pfc *pfc = &priv->pfc;
507 const struct sh_pfc_pin_group *grp = &priv->pfc.info->groups[group_selector];
508 unsigned int i;
509 int ret = 0;
510
511 for (i = 0; i < grp->nr_pins; ++i) {
512 int idx = sh_pfc_get_pin_index(pfc, grp->pins[i]);
513 struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
514
515 if (cfg->type != PINMUX_TYPE_NONE) {
516 ret = -EBUSY;
517 goto done;
518 }
519 }
520
521 for (i = 0; i < grp->nr_pins; ++i) {
522 ret = sh_pfc_config_mux(pfc, grp->mux[i], PINMUX_TYPE_FUNCTION);
523 if (ret < 0)
524 break;
525 }
526
527done:
528 return ret;
529}
Marek Vasutc9dd9ae2017-09-28 00:56:24 +0200530#if CONFIG_IS_ENABLED(PINCONF)
531static const struct pinconf_param sh_pfc_pinconf_params[] = {
532 { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
533 { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
534 { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
535 { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 },
536 { "power-source", PIN_CONFIG_POWER_SOURCE, 3300 },
537};
538
539static void __iomem *
540sh_pfc_pinconf_find_drive_strength_reg(struct sh_pfc *pfc, unsigned int pin,
541 unsigned int *offset, unsigned int *size)
542{
543 const struct pinmux_drive_reg_field *field;
544 const struct pinmux_drive_reg *reg;
545 unsigned int i;
546
547 for (reg = pfc->info->drive_regs; reg->reg; ++reg) {
548 for (i = 0; i < ARRAY_SIZE(reg->fields); ++i) {
549 field = &reg->fields[i];
550
551 if (field->size && field->pin == pin) {
552 *offset = field->offset;
553 *size = field->size;
554
555 return (void __iomem *)(uintptr_t)reg->reg;
556 }
557 }
558 }
559
560 return NULL;
561}
562
563static int sh_pfc_pinconf_set_drive_strength(struct sh_pfc *pfc,
564 unsigned int pin, u16 strength)
565{
566 unsigned int offset;
567 unsigned int size;
568 unsigned int step;
569 void __iomem *reg;
570 void __iomem *unlock_reg =
571 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
572 u32 val;
573
574 reg = sh_pfc_pinconf_find_drive_strength_reg(pfc, pin, &offset, &size);
575 if (!reg)
576 return -EINVAL;
577
578 step = size == 2 ? 6 : 3;
579
580 if (strength < step || strength > 24)
581 return -EINVAL;
582
583 /* Convert the value from mA based on a full drive strength value of
584 * 24mA. We can make the full value configurable later if needed.
585 */
586 strength = strength / step - 1;
587
588 val = sh_pfc_read_raw_reg(reg, 32);
589 val &= ~GENMASK(offset + size - 1, offset);
590 val |= strength << offset;
591
592 if (unlock_reg)
593 sh_pfc_write_raw_reg(unlock_reg, 32, ~val);
594
595 sh_pfc_write_raw_reg(reg, 32, val);
596
597 return 0;
598}
599
600/* Check whether the requested parameter is supported for a pin. */
601static bool sh_pfc_pinconf_validate(struct sh_pfc *pfc, unsigned int _pin,
602 unsigned int param)
603{
604 int idx = sh_pfc_get_pin_index(pfc, _pin);
605 const struct sh_pfc_pin *pin = &pfc->info->pins[idx];
606
607 switch (param) {
608 case PIN_CONFIG_BIAS_DISABLE:
609 return pin->configs &
610 (SH_PFC_PIN_CFG_PULL_UP | SH_PFC_PIN_CFG_PULL_DOWN);
611
612 case PIN_CONFIG_BIAS_PULL_UP:
613 return pin->configs & SH_PFC_PIN_CFG_PULL_UP;
614
615 case PIN_CONFIG_BIAS_PULL_DOWN:
616 return pin->configs & SH_PFC_PIN_CFG_PULL_DOWN;
617
618 case PIN_CONFIG_DRIVE_STRENGTH:
619 return pin->configs & SH_PFC_PIN_CFG_DRIVE_STRENGTH;
620
621 case PIN_CONFIG_POWER_SOURCE:
622 return pin->configs & SH_PFC_PIN_CFG_IO_VOLTAGE;
623
624 default:
625 return false;
626 }
627}
628
629static int sh_pfc_pinconf_set(struct sh_pfc_pinctrl *pmx, unsigned _pin,
630 unsigned int param, unsigned int arg)
631{
632 struct sh_pfc *pfc = pmx->pfc;
633 void __iomem *pocctrl;
634 void __iomem *unlock_reg =
635 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
636 u32 addr, val;
637 int bit, ret;
638
639 if (!sh_pfc_pinconf_validate(pfc, _pin, param))
640 return -ENOTSUPP;
641
642 switch (param) {
643 case PIN_CONFIG_BIAS_PULL_UP:
644 case PIN_CONFIG_BIAS_PULL_DOWN:
645 case PIN_CONFIG_BIAS_DISABLE:
646 if (!pfc->info->ops || !pfc->info->ops->set_bias)
647 return -ENOTSUPP;
648
649 pfc->info->ops->set_bias(pfc, _pin, param);
650
651 break;
652
653 case PIN_CONFIG_DRIVE_STRENGTH:
654 ret = sh_pfc_pinconf_set_drive_strength(pfc, _pin, arg);
655 if (ret < 0)
656 return ret;
657
658 break;
659
660 case PIN_CONFIG_POWER_SOURCE:
661 if (!pfc->info->ops || !pfc->info->ops->pin_to_pocctrl)
662 return -ENOTSUPP;
663
664 bit = pfc->info->ops->pin_to_pocctrl(pfc, _pin, &addr);
665 if (bit < 0) {
666 printf("invalid pin %#x", _pin);
667 return bit;
668 }
669
670 if (arg != 1800 && arg != 3300)
671 return -EINVAL;
672
673 pocctrl = (void __iomem *)(uintptr_t)addr;
674
675 val = sh_pfc_read_raw_reg(pocctrl, 32);
676 if (arg == 3300)
677 val |= BIT(bit);
678 else
679 val &= ~BIT(bit);
680
681 if (unlock_reg)
682 sh_pfc_write_raw_reg(unlock_reg, 32, ~val);
683
684 sh_pfc_write_raw_reg(pocctrl, 32, val);
685
686 break;
687
688 default:
689 return -ENOTSUPP;
690 }
691
692 return 0;
693}
694
Marek Vasut5e6db842017-11-26 17:42:16 +0100695static int sh_pfc_pinconf_pin_set(struct udevice *dev,
696 unsigned int pin_selector,
697 unsigned int param, unsigned int arg)
698{
699 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
700 struct sh_pfc_pinctrl *pmx = &priv->pmx;
701 struct sh_pfc *pfc = &priv->pfc;
702 const struct sh_pfc_pin *pin = &pfc->info->pins[pin_selector];
703
704 sh_pfc_pinconf_set(pmx, pin->pin, param, arg);
705
706 return 0;
707}
Marek Vasutc9dd9ae2017-09-28 00:56:24 +0200708
709static int sh_pfc_pinconf_group_set(struct udevice *dev,
710 unsigned int group_selector,
711 unsigned int param, unsigned int arg)
712{
713 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
714 struct sh_pfc_pinctrl *pmx = &priv->pmx;
715 struct sh_pfc *pfc = &priv->pfc;
716 const struct sh_pfc_pin_group *grp = &pfc->info->groups[group_selector];
717 unsigned int i;
718
719 for (i = 0; i < grp->nr_pins; i++)
720 sh_pfc_pinconf_set(pmx, grp->pins[i], param, arg);
721
722 return 0;
723}
724#endif
Marek Vasut3066a062017-09-15 21:13:55 +0200725
726static struct pinctrl_ops sh_pfc_pinctrl_ops = {
727 .get_pins_count = sh_pfc_pinctrl_get_pins_count,
728 .get_pin_name = sh_pfc_pinctrl_get_pin_name,
729 .get_groups_count = sh_pfc_pinctrl_get_groups_count,
730 .get_group_name = sh_pfc_pinctrl_get_group_name,
731 .get_functions_count = sh_pfc_pinctrl_get_functions_count,
732 .get_function_name = sh_pfc_pinctrl_get_function_name,
733
Marek Vasutc9dd9ae2017-09-28 00:56:24 +0200734#if CONFIG_IS_ENABLED(PINCONF)
735 .pinconf_num_params = ARRAY_SIZE(sh_pfc_pinconf_params),
736 .pinconf_params = sh_pfc_pinconf_params,
Marek Vasut5e6db842017-11-26 17:42:16 +0100737 .pinconf_set = sh_pfc_pinconf_pin_set,
Marek Vasutc9dd9ae2017-09-28 00:56:24 +0200738 .pinconf_group_set = sh_pfc_pinconf_group_set,
739#endif
Marek Vasut5e6db842017-11-26 17:42:16 +0100740 .pinmux_set = sh_pfc_pinctrl_pin_set,
Marek Vasut3066a062017-09-15 21:13:55 +0200741 .pinmux_group_set = sh_pfc_pinctrl_group_set,
742 .set_state = pinctrl_generic_set_state,
743};
744
745static int sh_pfc_map_pins(struct sh_pfc *pfc, struct sh_pfc_pinctrl *pmx)
746{
747 unsigned int i;
748
749 /* Allocate and initialize the pins and configs arrays. */
750 pmx->configs = kzalloc(sizeof(*pmx->configs) * pfc->info->nr_pins,
751 GFP_KERNEL);
752 if (unlikely(!pmx->configs))
753 return -ENOMEM;
754
755 for (i = 0; i < pfc->info->nr_pins; ++i) {
756 struct sh_pfc_pin_config *cfg = &pmx->configs[i];
757 cfg->type = PINMUX_TYPE_NONE;
758 }
759
760 return 0;
761}
762
763
764static int sh_pfc_pinctrl_probe(struct udevice *dev)
765{
766 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
767 enum sh_pfc_model model = dev_get_driver_data(dev);
768 fdt_addr_t base;
769
770 base = devfdt_get_addr(dev);
771 if (base == FDT_ADDR_T_NONE)
772 return -EINVAL;
773
774 priv->pfc.regs = devm_ioremap(dev, base, SZ_2K);
775 if (!priv->pfc.regs)
776 return -ENOMEM;
777
Marek Vasutc40f2d62018-01-17 22:18:59 +0100778#ifdef CONFIG_PINCTRL_PFC_R8A7790
779 if (model == SH_PFC_R8A7790)
780 priv->pfc.info = &r8a7790_pinmux_info;
781#endif
Marek Vasut06ef9e82018-01-17 17:14:45 +0100782#ifdef CONFIG_PINCTRL_PFC_R8A7791
783 if (model == SH_PFC_R8A7791)
784 priv->pfc.info = &r8a7791_pinmux_info;
785#endif
Marek Vasut1ef39302018-01-17 22:29:50 +0100786#ifdef CONFIG_PINCTRL_PFC_R8A7792
787 if (model == SH_PFC_R8A7792)
788 priv->pfc.info = &r8a7792_pinmux_info;
789#endif
Marek Vasut06ef9e82018-01-17 17:14:45 +0100790#ifdef CONFIG_PINCTRL_PFC_R8A7793
791 if (model == SH_PFC_R8A7793)
792 priv->pfc.info = &r8a7793_pinmux_info;
793#endif
Marek Vasut4dd88d52018-01-17 22:33:59 +0100794#ifdef CONFIG_PINCTRL_PFC_R8A7794
795 if (model == SH_PFC_R8A7794)
796 priv->pfc.info = &r8a7794_pinmux_info;
797#endif
Marek Vasut3066a062017-09-15 21:13:55 +0200798#ifdef CONFIG_PINCTRL_PFC_R8A7795
799 if (model == SH_PFC_R8A7795)
800 priv->pfc.info = &r8a7795_pinmux_info;
801#endif
802#ifdef CONFIG_PINCTRL_PFC_R8A7796
803 if (model == SH_PFC_R8A7796)
804 priv->pfc.info = &r8a7796_pinmux_info;
805#endif
Marek Vasuta0e11e52017-10-09 20:57:29 +0200806#ifdef CONFIG_PINCTRL_PFC_R8A77970
807 if (model == SH_PFC_R8A77970)
808 priv->pfc.info = &r8a77970_pinmux_info;
809#endif
Marek Vasut7d35e642017-10-08 20:57:37 +0200810#ifdef CONFIG_PINCTRL_PFC_R8A77995
811 if (model == SH_PFC_R8A77995)
812 priv->pfc.info = &r8a77995_pinmux_info;
813#endif
Marek Vasut3066a062017-09-15 21:13:55 +0200814
815 priv->pmx.pfc = &priv->pfc;
816 sh_pfc_init_ranges(&priv->pfc);
817 sh_pfc_map_pins(&priv->pfc, &priv->pmx);
818
819 return 0;
820}
821
822static const struct udevice_id sh_pfc_pinctrl_ids[] = {
Marek Vasutc40f2d62018-01-17 22:18:59 +0100823#ifdef CONFIG_PINCTRL_PFC_R8A7790
824 {
825 .compatible = "renesas,pfc-r8a7790",
826 .data = SH_PFC_R8A7790,
827 },
828#endif
Marek Vasut06ef9e82018-01-17 17:14:45 +0100829#ifdef CONFIG_PINCTRL_PFC_R8A7791
830 {
831 .compatible = "renesas,pfc-r8a7791",
832 .data = SH_PFC_R8A7791,
833 },
834#endif
Marek Vasut1ef39302018-01-17 22:29:50 +0100835#ifdef CONFIG_PINCTRL_PFC_R8A7792
836 {
837 .compatible = "renesas,pfc-r8a7792",
838 .data = SH_PFC_R8A7792,
839 },
840#endif
Marek Vasut06ef9e82018-01-17 17:14:45 +0100841#ifdef CONFIG_PINCTRL_PFC_R8A7793
842 {
843 .compatible = "renesas,pfc-r8a7793",
844 .data = SH_PFC_R8A7793,
845 },
846#endif
Marek Vasut4dd88d52018-01-17 22:33:59 +0100847#ifdef CONFIG_PINCTRL_PFC_R8A7794
848 {
849 .compatible = "renesas,pfc-r8a7794",
850 .data = SH_PFC_R8A7794,
851 },
852#endif
Marek Vasut3066a062017-09-15 21:13:55 +0200853#ifdef CONFIG_PINCTRL_PFC_R8A7795
854 {
855 .compatible = "renesas,pfc-r8a7795",
856 .data = SH_PFC_R8A7795,
857 },
858#endif
859#ifdef CONFIG_PINCTRL_PFC_R8A7796
860 {
861 .compatible = "renesas,pfc-r8a7796",
862 .data = SH_PFC_R8A7796,
Marek Vasut20d721e2018-02-26 10:35:15 +0100863 }, {
864 .compatible = "renesas,pfc-r8a77965",
865 .data = SH_PFC_R8A7796,
Marek Vasut3066a062017-09-15 21:13:55 +0200866 },
867#endif
Marek Vasuta0e11e52017-10-09 20:57:29 +0200868#ifdef CONFIG_PINCTRL_PFC_R8A77970
869 {
870 .compatible = "renesas,pfc-r8a77970",
871 .data = SH_PFC_R8A77970,
872 },
873#endif
Marek Vasut7d35e642017-10-08 20:57:37 +0200874#ifdef CONFIG_PINCTRL_PFC_R8A77995
875 {
876 .compatible = "renesas,pfc-r8a77995",
877 .data = SH_PFC_R8A77995,
878 },
879#endif
Marek Vasut3066a062017-09-15 21:13:55 +0200880 { },
881};
882
883U_BOOT_DRIVER(pinctrl_sh_pfc) = {
884 .name = "sh_pfc_pinctrl",
885 .id = UCLASS_PINCTRL,
886 .of_match = sh_pfc_pinctrl_ids,
887 .priv_auto_alloc_size = sizeof(struct sh_pfc_pinctrl_priv),
888 .ops = &sh_pfc_pinctrl_ops,
889 .probe = sh_pfc_pinctrl_probe,
890};