blob: 6194e6522e73668e9b3b0b03d7278f69a5dd33ca [file] [log] [blame]
Marek Vasut910df4d2017-09-15 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
24DECLARE_GLOBAL_DATA_PTR;
25
26enum sh_pfc_model {
Marek Vasut7547ad42018-01-17 22:18:59 +010027 SH_PFC_R8A7790 = 0,
Marek Vasut427c75d2018-01-17 17:14:45 +010028 SH_PFC_R8A7791,
Marek Vasutab2d09b42018-01-17 22:29:50 +010029 SH_PFC_R8A7792,
Marek Vasut427c75d2018-01-17 17:14:45 +010030 SH_PFC_R8A7793,
Marek Vasut34e93602018-01-17 22:33:59 +010031 SH_PFC_R8A7794,
Marek Vasut7547ad42018-01-17 22:18:59 +010032 SH_PFC_R8A7795,
Marek Vasut910df4d2017-09-15 21:13:55 +020033 SH_PFC_R8A7796,
Marek Vasutc106bb52017-10-09 20:57:29 +020034 SH_PFC_R8A77970,
Marek Vasuta59e6972017-10-08 20:57:37 +020035 SH_PFC_R8A77995,
Marek Vasut910df4d2017-09-15 21:13:55 +020036};
37
38struct sh_pfc_pin_config {
39 u32 type;
40};
41
42struct sh_pfc_pinctrl {
43 struct sh_pfc *pfc;
44
45 struct sh_pfc_pin_config *configs;
46
47 const char *func_prop_name;
48 const char *groups_prop_name;
49 const char *pins_prop_name;
50};
51
52struct sh_pfc_pin_range {
53 u16 start;
54 u16 end;
55};
56
57struct sh_pfc_pinctrl_priv {
58 struct sh_pfc pfc;
59 struct sh_pfc_pinctrl pmx;
60};
61
62int sh_pfc_get_pin_index(struct sh_pfc *pfc, unsigned int pin)
63{
64 unsigned int offset;
65 unsigned int i;
66
67 for (i = 0, offset = 0; i < pfc->nr_ranges; ++i) {
68 const struct sh_pfc_pin_range *range = &pfc->ranges[i];
69
70 if (pin <= range->end)
71 return pin >= range->start
72 ? offset + pin - range->start : -1;
73
74 offset += range->end - range->start + 1;
75 }
76
77 return -EINVAL;
78}
79
80static int sh_pfc_enum_in_range(u16 enum_id, const struct pinmux_range *r)
81{
82 if (enum_id < r->begin)
83 return 0;
84
85 if (enum_id > r->end)
86 return 0;
87
88 return 1;
89}
90
91u32 sh_pfc_read_raw_reg(void __iomem *mapped_reg, unsigned int reg_width)
92{
93 switch (reg_width) {
94 case 8:
95 return readb(mapped_reg);
96 case 16:
97 return readw(mapped_reg);
98 case 32:
99 return readl(mapped_reg);
100 }
101
102 BUG();
103 return 0;
104}
105
106void sh_pfc_write_raw_reg(void __iomem *mapped_reg, unsigned int reg_width,
107 u32 data)
108{
109 switch (reg_width) {
110 case 8:
111 writeb(data, mapped_reg);
112 return;
113 case 16:
114 writew(data, mapped_reg);
115 return;
116 case 32:
117 writel(data, mapped_reg);
118 return;
119 }
120
121 BUG();
122}
123
124u32 sh_pfc_read_reg(struct sh_pfc *pfc, u32 reg, unsigned int width)
125{
126 return sh_pfc_read_raw_reg(pfc->regs + reg, width);
127}
128
129void sh_pfc_write_reg(struct sh_pfc *pfc, u32 reg, unsigned int width, u32 data)
130{
131 void __iomem *unlock_reg =
132 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
133
134 if (pfc->info->unlock_reg)
135 sh_pfc_write_raw_reg(unlock_reg, 32, ~data);
136
137 sh_pfc_write_raw_reg(pfc->regs + reg, width, data);
138}
139
140static void sh_pfc_config_reg_helper(struct sh_pfc *pfc,
141 const struct pinmux_cfg_reg *crp,
142 unsigned int in_pos,
143 void __iomem **mapped_regp, u32 *maskp,
144 unsigned int *posp)
145{
146 unsigned int k;
147
148 *mapped_regp = (void __iomem *)(uintptr_t)crp->reg;
149
150 if (crp->field_width) {
151 *maskp = (1 << crp->field_width) - 1;
152 *posp = crp->reg_width - ((in_pos + 1) * crp->field_width);
153 } else {
154 *maskp = (1 << crp->var_field_width[in_pos]) - 1;
155 *posp = crp->reg_width;
156 for (k = 0; k <= in_pos; k++)
157 *posp -= crp->var_field_width[k];
158 }
159}
160
161static void sh_pfc_write_config_reg(struct sh_pfc *pfc,
162 const struct pinmux_cfg_reg *crp,
163 unsigned int field, u32 value)
164{
165 void __iomem *mapped_reg;
166 void __iomem *unlock_reg =
167 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
168 unsigned int pos;
169 u32 mask, data;
170
171 sh_pfc_config_reg_helper(pfc, crp, field, &mapped_reg, &mask, &pos);
172
173 dev_dbg(pfc->dev, "write_reg addr = %x, value = 0x%x, field = %u, "
174 "r_width = %u, f_width = %u\n",
175 crp->reg, value, field, crp->reg_width, crp->field_width);
176
177 mask = ~(mask << pos);
178 value = value << pos;
179
180 data = sh_pfc_read_raw_reg(mapped_reg, crp->reg_width);
181 data &= mask;
182 data |= value;
183
184 if (pfc->info->unlock_reg)
185 sh_pfc_write_raw_reg(unlock_reg, 32, ~data);
186
187 sh_pfc_write_raw_reg(mapped_reg, crp->reg_width, data);
188}
189
190static int sh_pfc_get_config_reg(struct sh_pfc *pfc, u16 enum_id,
191 const struct pinmux_cfg_reg **crp,
192 unsigned int *fieldp, u32 *valuep)
193{
194 unsigned int k = 0;
195
196 while (1) {
197 const struct pinmux_cfg_reg *config_reg =
198 pfc->info->cfg_regs + k;
199 unsigned int r_width = config_reg->reg_width;
200 unsigned int f_width = config_reg->field_width;
201 unsigned int curr_width;
202 unsigned int bit_pos;
203 unsigned int pos = 0;
204 unsigned int m = 0;
205
206 if (!r_width)
207 break;
208
209 for (bit_pos = 0; bit_pos < r_width; bit_pos += curr_width) {
210 u32 ncomb;
211 u32 n;
212
213 if (f_width)
214 curr_width = f_width;
215 else
216 curr_width = config_reg->var_field_width[m];
217
218 ncomb = 1 << curr_width;
219 for (n = 0; n < ncomb; n++) {
220 if (config_reg->enum_ids[pos + n] == enum_id) {
221 *crp = config_reg;
222 *fieldp = m;
223 *valuep = n;
224 return 0;
225 }
226 }
227 pos += ncomb;
228 m++;
229 }
230 k++;
231 }
232
233 return -EINVAL;
234}
235
236static int sh_pfc_mark_to_enum(struct sh_pfc *pfc, u16 mark, int pos,
237 u16 *enum_idp)
238{
239 const u16 *data = pfc->info->pinmux_data;
240 unsigned int k;
241
242 if (pos) {
243 *enum_idp = data[pos + 1];
244 return pos + 1;
245 }
246
247 for (k = 0; k < pfc->info->pinmux_data_size; k++) {
248 if (data[k] == mark) {
249 *enum_idp = data[k + 1];
250 return k + 1;
251 }
252 }
253
254 dev_err(pfc->dev, "cannot locate data/mark enum_id for mark %d\n",
255 mark);
256 return -EINVAL;
257}
258
259int sh_pfc_config_mux(struct sh_pfc *pfc, unsigned mark, int pinmux_type)
260{
261 const struct pinmux_range *range;
262 int pos = 0;
263
264 switch (pinmux_type) {
265 case PINMUX_TYPE_GPIO:
266 case PINMUX_TYPE_FUNCTION:
267 range = NULL;
268 break;
269
270 case PINMUX_TYPE_OUTPUT:
271 range = &pfc->info->output;
272 break;
273
274 case PINMUX_TYPE_INPUT:
275 range = &pfc->info->input;
276 break;
277
278 default:
279 return -EINVAL;
280 }
281
282 /* Iterate over all the configuration fields we need to update. */
283 while (1) {
284 const struct pinmux_cfg_reg *cr;
285 unsigned int field;
286 u16 enum_id;
287 u32 value;
288 int in_range;
289 int ret;
290
291 pos = sh_pfc_mark_to_enum(pfc, mark, pos, &enum_id);
292 if (pos < 0)
293 return pos;
294
295 if (!enum_id)
296 break;
297
298 /* Check if the configuration field selects a function. If it
299 * doesn't, skip the field if it's not applicable to the
300 * requested pinmux type.
301 */
302 in_range = sh_pfc_enum_in_range(enum_id, &pfc->info->function);
303 if (!in_range) {
304 if (pinmux_type == PINMUX_TYPE_FUNCTION) {
305 /* Functions are allowed to modify all
306 * fields.
307 */
308 in_range = 1;
309 } else if (pinmux_type != PINMUX_TYPE_GPIO) {
310 /* Input/output types can only modify fields
311 * that correspond to their respective ranges.
312 */
313 in_range = sh_pfc_enum_in_range(enum_id, range);
314
315 /*
316 * special case pass through for fixed
317 * input-only or output-only pins without
318 * function enum register association.
319 */
320 if (in_range && enum_id == range->force)
321 continue;
322 }
323 /* GPIOs are only allowed to modify function fields. */
324 }
325
326 if (!in_range)
327 continue;
328
329 ret = sh_pfc_get_config_reg(pfc, enum_id, &cr, &field, &value);
330 if (ret < 0)
331 return ret;
332
333 sh_pfc_write_config_reg(pfc, cr, field, value);
334 }
335
336 return 0;
337}
338
339const struct sh_pfc_bias_info *
340sh_pfc_pin_to_bias_info(const struct sh_pfc_bias_info *info,
341 unsigned int num, unsigned int pin)
342{
343 unsigned int i;
344
345 for (i = 0; i < num; i++)
346 if (info[i].pin == pin)
347 return &info[i];
348
349 printf("Pin %u is not in bias info list\n", pin);
350
351 return NULL;
352}
353
354static int sh_pfc_init_ranges(struct sh_pfc *pfc)
355{
356 struct sh_pfc_pin_range *range;
357 unsigned int nr_ranges;
358 unsigned int i;
359
360 if (pfc->info->pins[0].pin == (u16)-1) {
361 /* Pin number -1 denotes that the SoC doesn't report pin numbers
362 * in its pin arrays yet. Consider the pin numbers range as
363 * continuous and allocate a single range.
364 */
365 pfc->nr_ranges = 1;
366 pfc->ranges = kzalloc(sizeof(*pfc->ranges), GFP_KERNEL);
367 if (pfc->ranges == NULL)
368 return -ENOMEM;
369
370 pfc->ranges->start = 0;
371 pfc->ranges->end = pfc->info->nr_pins - 1;
372 pfc->nr_gpio_pins = pfc->info->nr_pins;
373
374 return 0;
375 }
376
377 /* Count, allocate and fill the ranges. The PFC SoC data pins array must
378 * be sorted by pin numbers, and pins without a GPIO port must come
379 * last.
380 */
381 for (i = 1, nr_ranges = 1; i < pfc->info->nr_pins; ++i) {
382 if (pfc->info->pins[i-1].pin != pfc->info->pins[i].pin - 1)
383 nr_ranges++;
384 }
385
386 pfc->nr_ranges = nr_ranges;
387 pfc->ranges = kzalloc(sizeof(*pfc->ranges) * nr_ranges, GFP_KERNEL);
388 if (pfc->ranges == NULL)
389 return -ENOMEM;
390
391 range = pfc->ranges;
392 range->start = pfc->info->pins[0].pin;
393
394 for (i = 1; i < pfc->info->nr_pins; ++i) {
395 if (pfc->info->pins[i-1].pin == pfc->info->pins[i].pin - 1)
396 continue;
397
398 range->end = pfc->info->pins[i-1].pin;
399 if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))
400 pfc->nr_gpio_pins = range->end + 1;
401
402 range++;
403 range->start = pfc->info->pins[i].pin;
404 }
405
406 range->end = pfc->info->pins[i-1].pin;
407 if (!(pfc->info->pins[i-1].configs & SH_PFC_PIN_CFG_NO_GPIO))
408 pfc->nr_gpio_pins = range->end + 1;
409
410 return 0;
411}
412
413static int sh_pfc_pinctrl_get_pins_count(struct udevice *dev)
414{
415 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
416
417 return priv->pfc.info->nr_pins;
418}
419
420static const char *sh_pfc_pinctrl_get_pin_name(struct udevice *dev,
421 unsigned selector)
422{
423 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
424
425 return priv->pfc.info->pins[selector].name;
426}
427
428static int sh_pfc_pinctrl_get_groups_count(struct udevice *dev)
429{
430 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
431
432 return priv->pfc.info->nr_groups;
433}
434
435static const char *sh_pfc_pinctrl_get_group_name(struct udevice *dev,
436 unsigned selector)
437{
438 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
439
440 return priv->pfc.info->groups[selector].name;
441}
442
443static int sh_pfc_pinctrl_get_functions_count(struct udevice *dev)
444{
445 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
446
447 return priv->pfc.info->nr_functions;
448}
449
450static const char *sh_pfc_pinctrl_get_function_name(struct udevice *dev,
451 unsigned selector)
452{
453 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
454
455 return priv->pfc.info->functions[selector].name;
456}
457
Marek Vasutf6e545a2017-11-26 18:07:29 +0100458int sh_pfc_config_mux_for_gpio(struct udevice *dev, unsigned pin_selector)
459{
460 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
461 struct sh_pfc_pinctrl *pmx = &priv->pmx;
462 struct sh_pfc *pfc = &priv->pfc;
463 struct sh_pfc_pin_config *cfg;
464 const struct sh_pfc_pin *pin = NULL;
465 int i, idx;
466
467 for (i = 1; i < pfc->info->nr_pins; i++) {
468 if (priv->pfc.info->pins[i].pin != pin_selector)
469 continue;
470
471 pin = &priv->pfc.info->pins[i];
472 break;
473 }
474
475 if (!pin)
476 return -EINVAL;
477
478 idx = sh_pfc_get_pin_index(pfc, pin->pin);
479 cfg = &pmx->configs[idx];
480
481 if (cfg->type != PINMUX_TYPE_NONE)
482 return -EBUSY;
483
484 return sh_pfc_config_mux(pfc, pin->enum_id, PINMUX_TYPE_GPIO);
485}
486
Marek Vasut2489bb52017-11-26 17:42:16 +0100487static int sh_pfc_pinctrl_pin_set(struct udevice *dev, unsigned pin_selector,
488 unsigned func_selector)
489{
490 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
491 struct sh_pfc_pinctrl *pmx = &priv->pmx;
492 struct sh_pfc *pfc = &priv->pfc;
493 const struct sh_pfc_pin *pin = &priv->pfc.info->pins[pin_selector];
494 int idx = sh_pfc_get_pin_index(pfc, pin->pin);
495 struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
496
497 if (cfg->type != PINMUX_TYPE_NONE)
498 return -EBUSY;
499
500 return sh_pfc_config_mux(pfc, pin->enum_id, PINMUX_TYPE_FUNCTION);
501}
502
Marek Vasut910df4d2017-09-15 21:13:55 +0200503static int sh_pfc_pinctrl_group_set(struct udevice *dev, unsigned group_selector,
504 unsigned func_selector)
505{
506 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
507 struct sh_pfc_pinctrl *pmx = &priv->pmx;
508 struct sh_pfc *pfc = &priv->pfc;
509 const struct sh_pfc_pin_group *grp = &priv->pfc.info->groups[group_selector];
510 unsigned int i;
511 int ret = 0;
512
513 for (i = 0; i < grp->nr_pins; ++i) {
514 int idx = sh_pfc_get_pin_index(pfc, grp->pins[i]);
515 struct sh_pfc_pin_config *cfg = &pmx->configs[idx];
516
517 if (cfg->type != PINMUX_TYPE_NONE) {
518 ret = -EBUSY;
519 goto done;
520 }
521 }
522
523 for (i = 0; i < grp->nr_pins; ++i) {
524 ret = sh_pfc_config_mux(pfc, grp->mux[i], PINMUX_TYPE_FUNCTION);
525 if (ret < 0)
526 break;
527 }
528
529done:
530 return ret;
531}
Marek Vasutd52132c2017-09-28 00:56:24 +0200532#if CONFIG_IS_ENABLED(PINCONF)
533static const struct pinconf_param sh_pfc_pinconf_params[] = {
534 { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
535 { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
536 { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
537 { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 },
538 { "power-source", PIN_CONFIG_POWER_SOURCE, 3300 },
539};
540
541static void __iomem *
542sh_pfc_pinconf_find_drive_strength_reg(struct sh_pfc *pfc, unsigned int pin,
543 unsigned int *offset, unsigned int *size)
544{
545 const struct pinmux_drive_reg_field *field;
546 const struct pinmux_drive_reg *reg;
547 unsigned int i;
548
549 for (reg = pfc->info->drive_regs; reg->reg; ++reg) {
550 for (i = 0; i < ARRAY_SIZE(reg->fields); ++i) {
551 field = &reg->fields[i];
552
553 if (field->size && field->pin == pin) {
554 *offset = field->offset;
555 *size = field->size;
556
557 return (void __iomem *)(uintptr_t)reg->reg;
558 }
559 }
560 }
561
562 return NULL;
563}
564
565static int sh_pfc_pinconf_set_drive_strength(struct sh_pfc *pfc,
566 unsigned int pin, u16 strength)
567{
568 unsigned int offset;
569 unsigned int size;
570 unsigned int step;
571 void __iomem *reg;
572 void __iomem *unlock_reg =
573 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
574 u32 val;
575
576 reg = sh_pfc_pinconf_find_drive_strength_reg(pfc, pin, &offset, &size);
577 if (!reg)
578 return -EINVAL;
579
580 step = size == 2 ? 6 : 3;
581
582 if (strength < step || strength > 24)
583 return -EINVAL;
584
585 /* Convert the value from mA based on a full drive strength value of
586 * 24mA. We can make the full value configurable later if needed.
587 */
588 strength = strength / step - 1;
589
590 val = sh_pfc_read_raw_reg(reg, 32);
591 val &= ~GENMASK(offset + size - 1, offset);
592 val |= strength << offset;
593
594 if (unlock_reg)
595 sh_pfc_write_raw_reg(unlock_reg, 32, ~val);
596
597 sh_pfc_write_raw_reg(reg, 32, val);
598
599 return 0;
600}
601
602/* Check whether the requested parameter is supported for a pin. */
603static bool sh_pfc_pinconf_validate(struct sh_pfc *pfc, unsigned int _pin,
604 unsigned int param)
605{
606 int idx = sh_pfc_get_pin_index(pfc, _pin);
607 const struct sh_pfc_pin *pin = &pfc->info->pins[idx];
608
609 switch (param) {
610 case PIN_CONFIG_BIAS_DISABLE:
611 return pin->configs &
612 (SH_PFC_PIN_CFG_PULL_UP | SH_PFC_PIN_CFG_PULL_DOWN);
613
614 case PIN_CONFIG_BIAS_PULL_UP:
615 return pin->configs & SH_PFC_PIN_CFG_PULL_UP;
616
617 case PIN_CONFIG_BIAS_PULL_DOWN:
618 return pin->configs & SH_PFC_PIN_CFG_PULL_DOWN;
619
620 case PIN_CONFIG_DRIVE_STRENGTH:
621 return pin->configs & SH_PFC_PIN_CFG_DRIVE_STRENGTH;
622
623 case PIN_CONFIG_POWER_SOURCE:
624 return pin->configs & SH_PFC_PIN_CFG_IO_VOLTAGE;
625
626 default:
627 return false;
628 }
629}
630
631static int sh_pfc_pinconf_set(struct sh_pfc_pinctrl *pmx, unsigned _pin,
632 unsigned int param, unsigned int arg)
633{
634 struct sh_pfc *pfc = pmx->pfc;
635 void __iomem *pocctrl;
636 void __iomem *unlock_reg =
637 (void __iomem *)(uintptr_t)pfc->info->unlock_reg;
638 u32 addr, val;
639 int bit, ret;
640
641 if (!sh_pfc_pinconf_validate(pfc, _pin, param))
642 return -ENOTSUPP;
643
644 switch (param) {
645 case PIN_CONFIG_BIAS_PULL_UP:
646 case PIN_CONFIG_BIAS_PULL_DOWN:
647 case PIN_CONFIG_BIAS_DISABLE:
648 if (!pfc->info->ops || !pfc->info->ops->set_bias)
649 return -ENOTSUPP;
650
651 pfc->info->ops->set_bias(pfc, _pin, param);
652
653 break;
654
655 case PIN_CONFIG_DRIVE_STRENGTH:
656 ret = sh_pfc_pinconf_set_drive_strength(pfc, _pin, arg);
657 if (ret < 0)
658 return ret;
659
660 break;
661
662 case PIN_CONFIG_POWER_SOURCE:
663 if (!pfc->info->ops || !pfc->info->ops->pin_to_pocctrl)
664 return -ENOTSUPP;
665
666 bit = pfc->info->ops->pin_to_pocctrl(pfc, _pin, &addr);
667 if (bit < 0) {
668 printf("invalid pin %#x", _pin);
669 return bit;
670 }
671
672 if (arg != 1800 && arg != 3300)
673 return -EINVAL;
674
675 pocctrl = (void __iomem *)(uintptr_t)addr;
676
677 val = sh_pfc_read_raw_reg(pocctrl, 32);
678 if (arg == 3300)
679 val |= BIT(bit);
680 else
681 val &= ~BIT(bit);
682
683 if (unlock_reg)
684 sh_pfc_write_raw_reg(unlock_reg, 32, ~val);
685
686 sh_pfc_write_raw_reg(pocctrl, 32, val);
687
688 break;
689
690 default:
691 return -ENOTSUPP;
692 }
693
694 return 0;
695}
696
Marek Vasut2489bb52017-11-26 17:42:16 +0100697static int sh_pfc_pinconf_pin_set(struct udevice *dev,
698 unsigned int pin_selector,
699 unsigned int param, unsigned int arg)
700{
701 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
702 struct sh_pfc_pinctrl *pmx = &priv->pmx;
703 struct sh_pfc *pfc = &priv->pfc;
704 const struct sh_pfc_pin *pin = &pfc->info->pins[pin_selector];
705
706 sh_pfc_pinconf_set(pmx, pin->pin, param, arg);
707
708 return 0;
709}
Marek Vasutd52132c2017-09-28 00:56:24 +0200710
711static int sh_pfc_pinconf_group_set(struct udevice *dev,
712 unsigned int group_selector,
713 unsigned int param, unsigned int arg)
714{
715 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
716 struct sh_pfc_pinctrl *pmx = &priv->pmx;
717 struct sh_pfc *pfc = &priv->pfc;
718 const struct sh_pfc_pin_group *grp = &pfc->info->groups[group_selector];
719 unsigned int i;
720
721 for (i = 0; i < grp->nr_pins; i++)
722 sh_pfc_pinconf_set(pmx, grp->pins[i], param, arg);
723
724 return 0;
725}
726#endif
Marek Vasut910df4d2017-09-15 21:13:55 +0200727
728static struct pinctrl_ops sh_pfc_pinctrl_ops = {
729 .get_pins_count = sh_pfc_pinctrl_get_pins_count,
730 .get_pin_name = sh_pfc_pinctrl_get_pin_name,
731 .get_groups_count = sh_pfc_pinctrl_get_groups_count,
732 .get_group_name = sh_pfc_pinctrl_get_group_name,
733 .get_functions_count = sh_pfc_pinctrl_get_functions_count,
734 .get_function_name = sh_pfc_pinctrl_get_function_name,
735
Marek Vasutd52132c2017-09-28 00:56:24 +0200736#if CONFIG_IS_ENABLED(PINCONF)
737 .pinconf_num_params = ARRAY_SIZE(sh_pfc_pinconf_params),
738 .pinconf_params = sh_pfc_pinconf_params,
Marek Vasut2489bb52017-11-26 17:42:16 +0100739 .pinconf_set = sh_pfc_pinconf_pin_set,
Marek Vasutd52132c2017-09-28 00:56:24 +0200740 .pinconf_group_set = sh_pfc_pinconf_group_set,
741#endif
Marek Vasut2489bb52017-11-26 17:42:16 +0100742 .pinmux_set = sh_pfc_pinctrl_pin_set,
Marek Vasut910df4d2017-09-15 21:13:55 +0200743 .pinmux_group_set = sh_pfc_pinctrl_group_set,
744 .set_state = pinctrl_generic_set_state,
745};
746
747static int sh_pfc_map_pins(struct sh_pfc *pfc, struct sh_pfc_pinctrl *pmx)
748{
749 unsigned int i;
750
751 /* Allocate and initialize the pins and configs arrays. */
752 pmx->configs = kzalloc(sizeof(*pmx->configs) * pfc->info->nr_pins,
753 GFP_KERNEL);
754 if (unlikely(!pmx->configs))
755 return -ENOMEM;
756
757 for (i = 0; i < pfc->info->nr_pins; ++i) {
758 struct sh_pfc_pin_config *cfg = &pmx->configs[i];
759 cfg->type = PINMUX_TYPE_NONE;
760 }
761
762 return 0;
763}
764
765
766static int sh_pfc_pinctrl_probe(struct udevice *dev)
767{
768 struct sh_pfc_pinctrl_priv *priv = dev_get_priv(dev);
769 enum sh_pfc_model model = dev_get_driver_data(dev);
770 fdt_addr_t base;
771
772 base = devfdt_get_addr(dev);
773 if (base == FDT_ADDR_T_NONE)
774 return -EINVAL;
775
776 priv->pfc.regs = devm_ioremap(dev, base, SZ_2K);
777 if (!priv->pfc.regs)
778 return -ENOMEM;
779
Marek Vasut7547ad42018-01-17 22:18:59 +0100780#ifdef CONFIG_PINCTRL_PFC_R8A7790
781 if (model == SH_PFC_R8A7790)
782 priv->pfc.info = &r8a7790_pinmux_info;
783#endif
Marek Vasut427c75d2018-01-17 17:14:45 +0100784#ifdef CONFIG_PINCTRL_PFC_R8A7791
785 if (model == SH_PFC_R8A7791)
786 priv->pfc.info = &r8a7791_pinmux_info;
787#endif
Marek Vasutab2d09b42018-01-17 22:29:50 +0100788#ifdef CONFIG_PINCTRL_PFC_R8A7792
789 if (model == SH_PFC_R8A7792)
790 priv->pfc.info = &r8a7792_pinmux_info;
791#endif
Marek Vasut427c75d2018-01-17 17:14:45 +0100792#ifdef CONFIG_PINCTRL_PFC_R8A7793
793 if (model == SH_PFC_R8A7793)
794 priv->pfc.info = &r8a7793_pinmux_info;
795#endif
Marek Vasut34e93602018-01-17 22:33:59 +0100796#ifdef CONFIG_PINCTRL_PFC_R8A7794
797 if (model == SH_PFC_R8A7794)
798 priv->pfc.info = &r8a7794_pinmux_info;
799#endif
Marek Vasut910df4d2017-09-15 21:13:55 +0200800#ifdef CONFIG_PINCTRL_PFC_R8A7795
801 if (model == SH_PFC_R8A7795)
802 priv->pfc.info = &r8a7795_pinmux_info;
803#endif
804#ifdef CONFIG_PINCTRL_PFC_R8A7796
805 if (model == SH_PFC_R8A7796)
806 priv->pfc.info = &r8a7796_pinmux_info;
807#endif
Marek Vasutc106bb52017-10-09 20:57:29 +0200808#ifdef CONFIG_PINCTRL_PFC_R8A77970
809 if (model == SH_PFC_R8A77970)
810 priv->pfc.info = &r8a77970_pinmux_info;
811#endif
Marek Vasuta59e6972017-10-08 20:57:37 +0200812#ifdef CONFIG_PINCTRL_PFC_R8A77995
813 if (model == SH_PFC_R8A77995)
814 priv->pfc.info = &r8a77995_pinmux_info;
815#endif
Marek Vasut910df4d2017-09-15 21:13:55 +0200816
817 priv->pmx.pfc = &priv->pfc;
818 sh_pfc_init_ranges(&priv->pfc);
819 sh_pfc_map_pins(&priv->pfc, &priv->pmx);
820
821 return 0;
822}
823
824static const struct udevice_id sh_pfc_pinctrl_ids[] = {
Marek Vasut7547ad42018-01-17 22:18:59 +0100825#ifdef CONFIG_PINCTRL_PFC_R8A7790
826 {
827 .compatible = "renesas,pfc-r8a7790",
828 .data = SH_PFC_R8A7790,
829 },
830#endif
Marek Vasut427c75d2018-01-17 17:14:45 +0100831#ifdef CONFIG_PINCTRL_PFC_R8A7791
832 {
833 .compatible = "renesas,pfc-r8a7791",
834 .data = SH_PFC_R8A7791,
835 },
836#endif
Marek Vasutab2d09b42018-01-17 22:29:50 +0100837#ifdef CONFIG_PINCTRL_PFC_R8A7792
838 {
839 .compatible = "renesas,pfc-r8a7792",
840 .data = SH_PFC_R8A7792,
841 },
842#endif
Marek Vasut427c75d2018-01-17 17:14:45 +0100843#ifdef CONFIG_PINCTRL_PFC_R8A7793
844 {
845 .compatible = "renesas,pfc-r8a7793",
846 .data = SH_PFC_R8A7793,
847 },
848#endif
Marek Vasut34e93602018-01-17 22:33:59 +0100849#ifdef CONFIG_PINCTRL_PFC_R8A7794
850 {
851 .compatible = "renesas,pfc-r8a7794",
852 .data = SH_PFC_R8A7794,
853 },
854#endif
Marek Vasut910df4d2017-09-15 21:13:55 +0200855#ifdef CONFIG_PINCTRL_PFC_R8A7795
856 {
857 .compatible = "renesas,pfc-r8a7795",
858 .data = SH_PFC_R8A7795,
859 },
860#endif
861#ifdef CONFIG_PINCTRL_PFC_R8A7796
862 {
863 .compatible = "renesas,pfc-r8a7796",
864 .data = SH_PFC_R8A7796,
Marek Vasutd1fe3182018-02-26 10:35:15 +0100865 }, {
866 .compatible = "renesas,pfc-r8a77965",
867 .data = SH_PFC_R8A7796,
Marek Vasut910df4d2017-09-15 21:13:55 +0200868 },
869#endif
Marek Vasutc106bb52017-10-09 20:57:29 +0200870#ifdef CONFIG_PINCTRL_PFC_R8A77970
871 {
872 .compatible = "renesas,pfc-r8a77970",
873 .data = SH_PFC_R8A77970,
874 },
875#endif
Marek Vasuta59e6972017-10-08 20:57:37 +0200876#ifdef CONFIG_PINCTRL_PFC_R8A77995
877 {
878 .compatible = "renesas,pfc-r8a77995",
879 .data = SH_PFC_R8A77995,
880 },
881#endif
Marek Vasut910df4d2017-09-15 21:13:55 +0200882 { },
883};
884
885U_BOOT_DRIVER(pinctrl_sh_pfc) = {
886 .name = "sh_pfc_pinctrl",
887 .id = UCLASS_PINCTRL,
888 .of_match = sh_pfc_pinctrl_ids,
889 .priv_auto_alloc_size = sizeof(struct sh_pfc_pinctrl_priv),
890 .ops = &sh_pfc_pinctrl_ops,
891 .probe = sh_pfc_pinctrl_probe,
892};