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rt2800: initialize BBP_R104 on proper subroutines
[linux/fpc-iii.git] / drivers / gpio / gpio-samsung.c
blobb22ca79337454d61bee83d7b66b1d83a5ff99904
1 /*
2 * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
3 * http://www.samsung.com/
4 *
5 * Copyright 2008 Openmoko, Inc.
6 * Copyright 2008 Simtec Electronics
7 * Ben Dooks <ben@simtec.co.uk>
8 * http://armlinux.simtec.co.uk/
9 *
10 * SAMSUNG - GPIOlib support
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
15 */
16
17 #include <linux/kernel.h>
18 #include <linux/irq.h>
19 #include <linux/io.h>
20 #include <linux/gpio.h>
21 #include <linux/init.h>
22 #include <linux/spinlock.h>
23 #include <linux/module.h>
24 #include <linux/interrupt.h>
25 #include <linux/device.h>
26 #include <linux/ioport.h>
27 #include <linux/of.h>
28 #include <linux/slab.h>
29 #include <linux/of_address.h>
30
31 #include <asm/irq.h>
32
33 #include <mach/hardware.h>
34 #include <mach/map.h>
35 #include <mach/regs-gpio.h>
36
37 #include <plat/cpu.h>
38 #include <plat/gpio-core.h>
39 #include <plat/gpio-cfg.h>
40 #include <plat/gpio-cfg-helpers.h>
41 #include <plat/pm.h>
42
43 int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip,
44 unsigned int off, samsung_gpio_pull_t pull)
45 {
46 void __iomem *reg = chip->base + 0x08;
47 int shift = off * 2;
48 u32 pup;
49
50 pup = __raw_readl(reg);
51 pup &= ~(3 << shift);
52 pup |= pull << shift;
53 __raw_writel(pup, reg);
54
55 return 0;
56 }
57
58 samsung_gpio_pull_t samsung_gpio_getpull_updown(struct samsung_gpio_chip *chip,
59 unsigned int off)
60 {
61 void __iomem *reg = chip->base + 0x08;
62 int shift = off * 2;
63 u32 pup = __raw_readl(reg);
64
65 pup >>= shift;
66 pup &= 0x3;
67
68 return (__force samsung_gpio_pull_t)pup;
69 }
70
71 int s3c2443_gpio_setpull(struct samsung_gpio_chip *chip,
72 unsigned int off, samsung_gpio_pull_t pull)
73 {
74 switch (pull) {
75 case S3C_GPIO_PULL_NONE:
76 pull = 0x01;
77 break;
78 case S3C_GPIO_PULL_UP:
79 pull = 0x00;
80 break;
81 case S3C_GPIO_PULL_DOWN:
82 pull = 0x02;
83 break;
84 }
85 return samsung_gpio_setpull_updown(chip, off, pull);
86 }
87
88 samsung_gpio_pull_t s3c2443_gpio_getpull(struct samsung_gpio_chip *chip,
89 unsigned int off)
90 {
91 samsung_gpio_pull_t pull;
92
93 pull = samsung_gpio_getpull_updown(chip, off);
94
95 switch (pull) {
96 case 0x00:
97 pull = S3C_GPIO_PULL_UP;
98 break;
99 case 0x01:
100 case 0x03:
101 pull = S3C_GPIO_PULL_NONE;
102 break;
103 case 0x02:
104 pull = S3C_GPIO_PULL_DOWN;
105 break;
106 }
107
108 return pull;
109 }
110
111 static int s3c24xx_gpio_setpull_1(struct samsung_gpio_chip *chip,
112 unsigned int off, samsung_gpio_pull_t pull,
113 samsung_gpio_pull_t updown)
114 {
115 void __iomem *reg = chip->base + 0x08;
116 u32 pup = __raw_readl(reg);
117
118 if (pull == updown)
119 pup &= ~(1 << off);
120 else if (pull == S3C_GPIO_PULL_NONE)
121 pup |= (1 << off);
122 else
123 return -EINVAL;
124
125 __raw_writel(pup, reg);
126 return 0;
127 }
128
129 static samsung_gpio_pull_t s3c24xx_gpio_getpull_1(struct samsung_gpio_chip *chip,
130 unsigned int off,
131 samsung_gpio_pull_t updown)
132 {
133 void __iomem *reg = chip->base + 0x08;
134 u32 pup = __raw_readl(reg);
135
136 pup &= (1 << off);
137 return pup ? S3C_GPIO_PULL_NONE : updown;
138 }
139
140 samsung_gpio_pull_t s3c24xx_gpio_getpull_1up(struct samsung_gpio_chip *chip,
141 unsigned int off)
142 {
143 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_UP);
144 }
145
146 int s3c24xx_gpio_setpull_1up(struct samsung_gpio_chip *chip,
147 unsigned int off, samsung_gpio_pull_t pull)
148 {
149 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_UP);
150 }
151
152 samsung_gpio_pull_t s3c24xx_gpio_getpull_1down(struct samsung_gpio_chip *chip,
153 unsigned int off)
154 {
155 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_DOWN);
156 }
157
158 int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip,
159 unsigned int off, samsung_gpio_pull_t pull)
160 {
161 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN);
162 }
163
164 static int exynos_gpio_setpull(struct samsung_gpio_chip *chip,
165 unsigned int off, samsung_gpio_pull_t pull)
166 {
167 if (pull == S3C_GPIO_PULL_UP)
168 pull = 3;
169
170 return samsung_gpio_setpull_updown(chip, off, pull);
171 }
172
173 static samsung_gpio_pull_t exynos_gpio_getpull(struct samsung_gpio_chip *chip,
174 unsigned int off)
175 {
176 samsung_gpio_pull_t pull;
177
178 pull = samsung_gpio_getpull_updown(chip, off);
179
180 if (pull == 3)
181 pull = S3C_GPIO_PULL_UP;
182
183 return pull;
184 }
185
186 /*
187 * samsung_gpio_setcfg_2bit - Samsung 2bit style GPIO configuration.
188 * @chip: The gpio chip that is being configured.
189 * @off: The offset for the GPIO being configured.
190 * @cfg: The configuration value to set.
191 *
192 * This helper deal with the GPIO cases where the control register
193 * has two bits of configuration per gpio, which have the following
194 * functions:
195 * 00 = input
196 * 01 = output
197 * 1x = special function
198 */
199
200 static int samsung_gpio_setcfg_2bit(struct samsung_gpio_chip *chip,
201 unsigned int off, unsigned int cfg)
202 {
203 void __iomem *reg = chip->base;
204 unsigned int shift = off * 2;
205 u32 con;
206
207 if (samsung_gpio_is_cfg_special(cfg)) {
208 cfg &= 0xf;
209 if (cfg > 3)
210 return -EINVAL;
211
212 cfg <<= shift;
213 }
214
215 con = __raw_readl(reg);
216 con &= ~(0x3 << shift);
217 con |= cfg;
218 __raw_writel(con, reg);
219
220 return 0;
221 }
222
223 /*
224 * samsung_gpio_getcfg_2bit - Samsung 2bit style GPIO configuration read.
225 * @chip: The gpio chip that is being configured.
226 * @off: The offset for the GPIO being configured.
227 *
228 * The reverse of samsung_gpio_setcfg_2bit(). Will return a value which
229 * could be directly passed back to samsung_gpio_setcfg_2bit(), from the
230 * S3C_GPIO_SPECIAL() macro.
231 */
232
233 static unsigned int samsung_gpio_getcfg_2bit(struct samsung_gpio_chip *chip,
234 unsigned int off)
235 {
236 u32 con;
237
238 con = __raw_readl(chip->base);
239 con >>= off * 2;
240 con &= 3;
241
242 /* this conversion works for IN and OUT as well as special mode */
243 return S3C_GPIO_SPECIAL(con);
244 }
245
246 /*
247 * samsung_gpio_setcfg_4bit - Samsung 4bit single register GPIO config.
248 * @chip: The gpio chip that is being configured.
249 * @off: The offset for the GPIO being configured.
250 * @cfg: The configuration value to set.
251 *
252 * This helper deal with the GPIO cases where the control register has 4 bits
253 * of control per GPIO, generally in the form of:
254 * 0000 = Input
255 * 0001 = Output
256 * others = Special functions (dependent on bank)
257 *
258 * Note, since the code to deal with the case where there are two control
259 * registers instead of one, we do not have a separate set of functions for
260 * each case.
261 */
262
263 static int samsung_gpio_setcfg_4bit(struct samsung_gpio_chip *chip,
264 unsigned int off, unsigned int cfg)
265 {
266 void __iomem *reg = chip->base;
267 unsigned int shift = (off & 7) * 4;
268 u32 con;
269
270 if (off < 8 && chip->chip.ngpio > 8)
271 reg -= 4;
272
273 if (samsung_gpio_is_cfg_special(cfg)) {
274 cfg &= 0xf;
275 cfg <<= shift;
276 }
277
278 con = __raw_readl(reg);
279 con &= ~(0xf << shift);
280 con |= cfg;
281 __raw_writel(con, reg);
282
283 return 0;
284 }
285
286 /*
287 * samsung_gpio_getcfg_4bit - Samsung 4bit single register GPIO config read.
288 * @chip: The gpio chip that is being configured.
289 * @off: The offset for the GPIO being configured.
290 *
291 * The reverse of samsung_gpio_setcfg_4bit(), turning a gpio configuration
292 * register setting into a value the software can use, such as could be passed
293 * to samsung_gpio_setcfg_4bit().
294 *
295 * @sa samsung_gpio_getcfg_2bit
296 */
297
298 static unsigned samsung_gpio_getcfg_4bit(struct samsung_gpio_chip *chip,
299 unsigned int off)
300 {
301 void __iomem *reg = chip->base;
302 unsigned int shift = (off & 7) * 4;
303 u32 con;
304
305 if (off < 8 && chip->chip.ngpio > 8)
306 reg -= 4;
307
308 con = __raw_readl(reg);
309 con >>= shift;
310 con &= 0xf;
311
312 /* this conversion works for IN and OUT as well as special mode */
313 return S3C_GPIO_SPECIAL(con);
314 }
315
316 #ifdef CONFIG_PLAT_S3C24XX
317 /*
318 * s3c24xx_gpio_setcfg_abank - S3C24XX style GPIO configuration (Bank A)
319 * @chip: The gpio chip that is being configured.
320 * @off: The offset for the GPIO being configured.
321 * @cfg: The configuration value to set.
322 *
323 * This helper deal with the GPIO cases where the control register
324 * has one bit of configuration for the gpio, where setting the bit
325 * means the pin is in special function mode and unset means output.
326 */
327
328 static int s3c24xx_gpio_setcfg_abank(struct samsung_gpio_chip *chip,
329 unsigned int off, unsigned int cfg)
330 {
331 void __iomem *reg = chip->base;
332 unsigned int shift = off;
333 u32 con;
334
335 if (samsung_gpio_is_cfg_special(cfg)) {
336 cfg &= 0xf;
337
338 /* Map output to 0, and SFN2 to 1 */
339 cfg -= 1;
340 if (cfg > 1)
341 return -EINVAL;
342
343 cfg <<= shift;
344 }
345
346 con = __raw_readl(reg);
347 con &= ~(0x1 << shift);
348 con |= cfg;
349 __raw_writel(con, reg);
350
351 return 0;
352 }
353
354 /*
355 * s3c24xx_gpio_getcfg_abank - S3C24XX style GPIO configuration read (Bank A)
356 * @chip: The gpio chip that is being configured.
357 * @off: The offset for the GPIO being configured.
358 *
359 * The reverse of s3c24xx_gpio_setcfg_abank() turning an GPIO into a usable
360 * GPIO configuration value.
361 *
362 * @sa samsung_gpio_getcfg_2bit
363 * @sa samsung_gpio_getcfg_4bit
364 */
365
366 static unsigned s3c24xx_gpio_getcfg_abank(struct samsung_gpio_chip *chip,
367 unsigned int off)
368 {
369 u32 con;
370
371 con = __raw_readl(chip->base);
372 con >>= off;
373 con &= 1;
374 con++;
375
376 return S3C_GPIO_SFN(con);
377 }
378 #endif
379
380 #if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
381 static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip,
382 unsigned int off, unsigned int cfg)
383 {
384 void __iomem *reg = chip->base;
385 unsigned int shift;
386 u32 con;
387
388 switch (off) {
389 case 0:
390 case 1:
391 case 2:
392 case 3:
393 case 4:
394 case 5:
395 shift = (off & 7) * 4;
396 reg -= 4;
397 break;
398 case 6:
399 shift = ((off + 1) & 7) * 4;
400 reg -= 4;
401 default:
402 shift = ((off + 1) & 7) * 4;
403 break;
404 }
405
406 if (samsung_gpio_is_cfg_special(cfg)) {
407 cfg &= 0xf;
408 cfg <<= shift;
409 }
410
411 con = __raw_readl(reg);
412 con &= ~(0xf << shift);
413 con |= cfg;
414 __raw_writel(con, reg);
415
416 return 0;
417 }
418 #endif
419
420 static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg *chipcfg,
421 int nr_chips)
422 {
423 for (; nr_chips > 0; nr_chips--, chipcfg++) {
424 if (!chipcfg->set_config)
425 chipcfg->set_config = samsung_gpio_setcfg_4bit;
426 if (!chipcfg->get_config)
427 chipcfg->get_config = samsung_gpio_getcfg_4bit;
428 if (!chipcfg->set_pull)
429 chipcfg->set_pull = samsung_gpio_setpull_updown;
430 if (!chipcfg->get_pull)
431 chipcfg->get_pull = samsung_gpio_getpull_updown;
432 }
433 }
434
435 struct samsung_gpio_cfg s3c24xx_gpiocfg_default = {
436 .set_config = samsung_gpio_setcfg_2bit,
437 .get_config = samsung_gpio_getcfg_2bit,
438 };
439
440 #ifdef CONFIG_PLAT_S3C24XX
441 static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
442 .set_config = s3c24xx_gpio_setcfg_abank,
443 .get_config = s3c24xx_gpio_getcfg_abank,
444 };
445 #endif
446
447 #if defined(CONFIG_ARCH_EXYNOS4) || defined(CONFIG_SOC_EXYNOS5250)
448 static struct samsung_gpio_cfg exynos_gpio_cfg = {
449 .set_pull = exynos_gpio_setpull,
450 .get_pull = exynos_gpio_getpull,
451 .set_config = samsung_gpio_setcfg_4bit,
452 .get_config = samsung_gpio_getcfg_4bit,
453 };
454 #endif
455
456 #if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
457 static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
458 .cfg_eint = 0x3,
459 .set_config = s5p64x0_gpio_setcfg_rbank,
460 .get_config = samsung_gpio_getcfg_4bit,
461 .set_pull = samsung_gpio_setpull_updown,
462 .get_pull = samsung_gpio_getpull_updown,
463 };
464 #endif
465
466 static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
467 [0] = {
468 .cfg_eint = 0x0,
469 },
470 [1] = {
471 .cfg_eint = 0x3,
472 },
473 [2] = {
474 .cfg_eint = 0x7,
475 },
476 [3] = {
477 .cfg_eint = 0xF,
478 },
479 [4] = {
480 .cfg_eint = 0x0,
481 .set_config = samsung_gpio_setcfg_2bit,
482 .get_config = samsung_gpio_getcfg_2bit,
483 },
484 [5] = {
485 .cfg_eint = 0x2,
486 .set_config = samsung_gpio_setcfg_2bit,
487 .get_config = samsung_gpio_getcfg_2bit,
488 },
489 [6] = {
490 .cfg_eint = 0x3,
491 .set_config = samsung_gpio_setcfg_2bit,
492 .get_config = samsung_gpio_getcfg_2bit,
493 },
494 [7] = {
495 .set_config = samsung_gpio_setcfg_2bit,
496 .get_config = samsung_gpio_getcfg_2bit,
497 },
498 [8] = {
499 .set_pull = exynos_gpio_setpull,
500 .get_pull = exynos_gpio_getpull,
501 },
502 [9] = {
503 .cfg_eint = 0x3,
504 .set_pull = exynos_gpio_setpull,
505 .get_pull = exynos_gpio_getpull,
506 }
507 };
508
509 /*
510 * Default routines for controlling GPIO, based on the original S3C24XX
511 * GPIO functions which deal with the case where each gpio bank of the
512 * chip is as following:
513 *
514 * base + 0x00: Control register, 2 bits per gpio
515 * gpio n: 2 bits starting at (2*n)
516 * 00 = input, 01 = output, others mean special-function
517 * base + 0x04: Data register, 1 bit per gpio
518 * bit n: data bit n
519 */
520
521 static int samsung_gpiolib_2bit_input(struct gpio_chip *chip, unsigned offset)
522 {
523 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
524 void __iomem *base = ourchip->base;
525 unsigned long flags;
526 unsigned long con;
527
528 samsung_gpio_lock(ourchip, flags);
529
530 con = __raw_readl(base + 0x00);
531 con &= ~(3 << (offset * 2));
532
533 __raw_writel(con, base + 0x00);
534
535 samsung_gpio_unlock(ourchip, flags);
536 return 0;
537 }
538
539 static int samsung_gpiolib_2bit_output(struct gpio_chip *chip,
540 unsigned offset, int value)
541 {
542 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
543 void __iomem *base = ourchip->base;
544 unsigned long flags;
545 unsigned long dat;
546 unsigned long con;
547
548 samsung_gpio_lock(ourchip, flags);
549
550 dat = __raw_readl(base + 0x04);
551 dat &= ~(1 << offset);
552 if (value)
553 dat |= 1 << offset;
554 __raw_writel(dat, base + 0x04);
555
556 con = __raw_readl(base + 0x00);
557 con &= ~(3 << (offset * 2));
558 con |= 1 << (offset * 2);
559
560 __raw_writel(con, base + 0x00);
561 __raw_writel(dat, base + 0x04);
562
563 samsung_gpio_unlock(ourchip, flags);
564 return 0;
565 }
566
567 /*
568 * The samsung_gpiolib_4bit routines are to control the gpio banks where
569 * the gpio configuration register (GPxCON) has 4 bits per GPIO, as the
570 * following example:
571 *
572 * base + 0x00: Control register, 4 bits per gpio
573 * gpio n: 4 bits starting at (4*n)
574 * 0000 = input, 0001 = output, others mean special-function
575 * base + 0x04: Data register, 1 bit per gpio
576 * bit n: data bit n
577 *
578 * Note, since the data register is one bit per gpio and is at base + 0x4
579 * we can use samsung_gpiolib_get and samsung_gpiolib_set to change the
580 * state of the output.
581 */
582
583 static int samsung_gpiolib_4bit_input(struct gpio_chip *chip,
584 unsigned int offset)
585 {
586 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
587 void __iomem *base = ourchip->base;
588 unsigned long con;
589
590 con = __raw_readl(base + GPIOCON_OFF);
591 if (ourchip->bitmap_gpio_int & BIT(offset))
592 con |= 0xf << con_4bit_shift(offset);
593 else
594 con &= ~(0xf << con_4bit_shift(offset));
595 __raw_writel(con, base + GPIOCON_OFF);
596
597 pr_debug("%s: %p: CON now %08lx\n", __func__, base, con);
598
599 return 0;
600 }
601
602 static int samsung_gpiolib_4bit_output(struct gpio_chip *chip,
603 unsigned int offset, int value)
604 {
605 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
606 void __iomem *base = ourchip->base;
607 unsigned long con;
608 unsigned long dat;
609
610 con = __raw_readl(base + GPIOCON_OFF);
611 con &= ~(0xf << con_4bit_shift(offset));
612 con |= 0x1 << con_4bit_shift(offset);
613
614 dat = __raw_readl(base + GPIODAT_OFF);
615
616 if (value)
617 dat |= 1 << offset;
618 else
619 dat &= ~(1 << offset);
620
621 __raw_writel(dat, base + GPIODAT_OFF);
622 __raw_writel(con, base + GPIOCON_OFF);
623 __raw_writel(dat, base + GPIODAT_OFF);
624
625 pr_debug("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
626
627 return 0;
628 }
629
630 /*
631 * The next set of routines are for the case where the GPIO configuration
632 * registers are 4 bits per GPIO but there is more than one register (the
633 * bank has more than 8 GPIOs.
634 *
635 * This case is the similar to the 4 bit case, but the registers are as
636 * follows:
637 *
638 * base + 0x00: Control register, 4 bits per gpio (lower 8 GPIOs)
639 * gpio n: 4 bits starting at (4*n)
640 * 0000 = input, 0001 = output, others mean special-function
641 * base + 0x04: Control register, 4 bits per gpio (up to 8 additions GPIOs)
642 * gpio n: 4 bits starting at (4*n)
643 * 0000 = input, 0001 = output, others mean special-function
644 * base + 0x08: Data register, 1 bit per gpio
645 * bit n: data bit n
646 *
647 * To allow us to use the samsung_gpiolib_get and samsung_gpiolib_set
648 * routines we store the 'base + 0x4' address so that these routines see
649 * the data register at ourchip->base + 0x04.
650 */
651
652 static int samsung_gpiolib_4bit2_input(struct gpio_chip *chip,
653 unsigned int offset)
654 {
655 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
656 void __iomem *base = ourchip->base;
657 void __iomem *regcon = base;
658 unsigned long con;
659
660 if (offset > 7)
661 offset -= 8;
662 else
663 regcon -= 4;
664
665 con = __raw_readl(regcon);
666 con &= ~(0xf << con_4bit_shift(offset));
667 __raw_writel(con, regcon);
668
669 pr_debug("%s: %p: CON %08lx\n", __func__, base, con);
670
671 return 0;
672 }
673
674 static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip,
675 unsigned int offset, int value)
676 {
677 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
678 void __iomem *base = ourchip->base;
679 void __iomem *regcon = base;
680 unsigned long con;
681 unsigned long dat;
682 unsigned con_offset = offset;
683
684 if (con_offset > 7)
685 con_offset -= 8;
686 else
687 regcon -= 4;
688
689 con = __raw_readl(regcon);
690 con &= ~(0xf << con_4bit_shift(con_offset));
691 con |= 0x1 << con_4bit_shift(con_offset);
692
693 dat = __raw_readl(base + GPIODAT_OFF);
694
695 if (value)
696 dat |= 1 << offset;
697 else
698 dat &= ~(1 << offset);
699
700 __raw_writel(dat, base + GPIODAT_OFF);
701 __raw_writel(con, regcon);
702 __raw_writel(dat, base + GPIODAT_OFF);
703
704 pr_debug("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
705
706 return 0;
707 }
708
709 #ifdef CONFIG_PLAT_S3C24XX
710 /* The next set of routines are for the case of s3c24xx bank a */
711
712 static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
713 {
714 return -EINVAL;
715 }
716
717 static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
718 unsigned offset, int value)
719 {
720 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
721 void __iomem *base = ourchip->base;
722 unsigned long flags;
723 unsigned long dat;
724 unsigned long con;
725
726 local_irq_save(flags);
727
728 con = __raw_readl(base + 0x00);
729 dat = __raw_readl(base + 0x04);
730
731 dat &= ~(1 << offset);
732 if (value)
733 dat |= 1 << offset;
734
735 __raw_writel(dat, base + 0x04);
736
737 con &= ~(1 << offset);
738
739 __raw_writel(con, base + 0x00);
740 __raw_writel(dat, base + 0x04);
741
742 local_irq_restore(flags);
743 return 0;
744 }
745 #endif
746
747 /* The next set of routines are for the case of s5p64x0 bank r */
748
749 static int s5p64x0_gpiolib_rbank_input(struct gpio_chip *chip,
750 unsigned int offset)
751 {
752 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
753 void __iomem *base = ourchip->base;
754 void __iomem *regcon = base;
755 unsigned long con;
756 unsigned long flags;
757
758 switch (offset) {
759 case 6:
760 offset += 1;
761 case 0:
762 case 1:
763 case 2:
764 case 3:
765 case 4:
766 case 5:
767 regcon -= 4;
768 break;
769 default:
770 offset -= 7;
771 break;
772 }
773
774 samsung_gpio_lock(ourchip, flags);
775
776 con = __raw_readl(regcon);
777 con &= ~(0xf << con_4bit_shift(offset));
778 __raw_writel(con, regcon);
779
780 samsung_gpio_unlock(ourchip, flags);
781
782 return 0;
783 }
784
785 static int s5p64x0_gpiolib_rbank_output(struct gpio_chip *chip,
786 unsigned int offset, int value)
787 {
788 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
789 void __iomem *base = ourchip->base;
790 void __iomem *regcon = base;
791 unsigned long con;
792 unsigned long dat;
793 unsigned long flags;
794 unsigned con_offset = offset;
795
796 switch (con_offset) {
797 case 6:
798 con_offset += 1;
799 case 0:
800 case 1:
801 case 2:
802 case 3:
803 case 4:
804 case 5:
805 regcon -= 4;
806 break;
807 default:
808 con_offset -= 7;
809 break;
810 }
811
812 samsung_gpio_lock(ourchip, flags);
813
814 con = __raw_readl(regcon);
815 con &= ~(0xf << con_4bit_shift(con_offset));
816 con |= 0x1 << con_4bit_shift(con_offset);
817
818 dat = __raw_readl(base + GPIODAT_OFF);
819 if (value)
820 dat |= 1 << offset;
821 else
822 dat &= ~(1 << offset);
823
824 __raw_writel(con, regcon);
825 __raw_writel(dat, base + GPIODAT_OFF);
826
827 samsung_gpio_unlock(ourchip, flags);
828
829 return 0;
830 }
831
832 static void samsung_gpiolib_set(struct gpio_chip *chip,
833 unsigned offset, int value)
834 {
835 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
836 void __iomem *base = ourchip->base;
837 unsigned long flags;
838 unsigned long dat;
839
840 samsung_gpio_lock(ourchip, flags);
841
842 dat = __raw_readl(base + 0x04);
843 dat &= ~(1 << offset);
844 if (value)
845 dat |= 1 << offset;
846 __raw_writel(dat, base + 0x04);
847
848 samsung_gpio_unlock(ourchip, flags);
849 }
850
851 static int samsung_gpiolib_get(struct gpio_chip *chip, unsigned offset)
852 {
853 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
854 unsigned long val;
855
856 val = __raw_readl(ourchip->base + 0x04);
857 val >>= offset;
858 val &= 1;
859
860 return val;
861 }
862
863 /*
864 * CONFIG_S3C_GPIO_TRACK enables the tracking of the s3c specific gpios
865 * for use with the configuration calls, and other parts of the s3c gpiolib
866 * support code.
867 *
868 * Not all s3c support code will need this, as some configurations of cpu
869 * may only support one or two different configuration options and have an
870 * easy gpio to samsung_gpio_chip mapping function. If this is the case, then
871 * the machine support file should provide its own samsung_gpiolib_getchip()
872 * and any other necessary functions.
873 */
874
875 #ifdef CONFIG_S3C_GPIO_TRACK
876 struct samsung_gpio_chip *s3c_gpios[S3C_GPIO_END];
877
878 static __init void s3c_gpiolib_track(struct samsung_gpio_chip *chip)
879 {
880 unsigned int gpn;
881 int i;
882
883 gpn = chip->chip.base;
884 for (i = 0; i < chip->chip.ngpio; i++, gpn++) {
885 BUG_ON(gpn >= ARRAY_SIZE(s3c_gpios));
886 s3c_gpios[gpn] = chip;
887 }
888 }
889 #endif /* CONFIG_S3C_GPIO_TRACK */
890
891 /*
892 * samsung_gpiolib_add() - add the Samsung gpio_chip.
893 * @chip: The chip to register
894 *
895 * This is a wrapper to gpiochip_add() that takes our specific gpio chip
896 * information and makes the necessary alterations for the platform and
897 * notes the information for use with the configuration systems and any
898 * other parts of the system.
899 */
900
901 static void __init samsung_gpiolib_add(struct samsung_gpio_chip *chip)
902 {
903 struct gpio_chip *gc = &chip->chip;
904 int ret;
905
906 BUG_ON(!chip->base);
907 BUG_ON(!gc->label);
908 BUG_ON(!gc->ngpio);
909
910 spin_lock_init(&chip->lock);
911
912 if (!gc->direction_input)
913 gc->direction_input = samsung_gpiolib_2bit_input;
914 if (!gc->direction_output)
915 gc->direction_output = samsung_gpiolib_2bit_output;
916 if (!gc->set)
917 gc->set = samsung_gpiolib_set;
918 if (!gc->get)
919 gc->get = samsung_gpiolib_get;
920
921 #ifdef CONFIG_PM
922 if (chip->pm != NULL) {
923 if (!chip->pm->save || !chip->pm->resume)
924 pr_err("gpio: %s has missing PM functions\n",
925 gc->label);
926 } else
927 pr_err("gpio: %s has no PM function\n", gc->label);
928 #endif
929
930 /* gpiochip_add() prints own failure message on error. */
931 ret = gpiochip_add(gc);
932 if (ret >= 0)
933 s3c_gpiolib_track(chip);
934 }
935
936 #if defined(CONFIG_PLAT_S3C24XX) && defined(CONFIG_OF)
937 static int s3c24xx_gpio_xlate(struct gpio_chip *gc,
938 const struct of_phandle_args *gpiospec, u32 *flags)
939 {
940 unsigned int pin;
941
942 if (WARN_ON(gc->of_gpio_n_cells < 3))
943 return -EINVAL;
944
945 if (WARN_ON(gpiospec->args_count < gc->of_gpio_n_cells))
946 return -EINVAL;
947
948 if (gpiospec->args[0] > gc->ngpio)
949 return -EINVAL;
950
951 pin = gc->base + gpiospec->args[0];
952
953 if (s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(gpiospec->args[1])))
954 pr_warn("gpio_xlate: failed to set pin function\n");
955 if (s3c_gpio_setpull(pin, gpiospec->args[2] & 0xffff))
956 pr_warn("gpio_xlate: failed to set pin pull up/down\n");
957
958 if (flags)
959 *flags = gpiospec->args[2] >> 16;
960
961 return gpiospec->args[0];
962 }
963
964 static const struct of_device_id s3c24xx_gpio_dt_match[] __initdata = {
965 { .compatible = "samsung,s3c24xx-gpio", },
966 {}
967 };
968
969 static __init void s3c24xx_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
970 u64 base, u64 offset)
971 {
972 struct gpio_chip *gc = &chip->chip;
973 u64 address;
974
975 if (!of_have_populated_dt())
976 return;
977
978 address = chip->base ? base + ((u32)chip->base & 0xfff) : base + offset;
979 gc->of_node = of_find_matching_node_by_address(NULL,
980 s3c24xx_gpio_dt_match, address);
981 if (!gc->of_node) {
982 pr_info("gpio: device tree node not found for gpio controller"
983 " with base address %08llx\n", address);
984 return;
985 }
986 gc->of_gpio_n_cells = 3;
987 gc->of_xlate = s3c24xx_gpio_xlate;
988 }
989 #else
990 static __init void s3c24xx_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
991 u64 base, u64 offset)
992 {
993 return;
994 }
995 #endif /* defined(CONFIG_PLAT_S3C24XX) && defined(CONFIG_OF) */
996
997 static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
998 int nr_chips, void __iomem *base)
999 {
1000 int i;
1001 struct gpio_chip *gc = &chip->chip;
1002
1003 for (i = 0 ; i < nr_chips; i++, chip++) {
1004 /* skip banks not present on SoC */
1005 if (chip->chip.base >= S3C_GPIO_END)
1006 continue;
1007
1008 if (!chip->config)
1009 chip->config = &s3c24xx_gpiocfg_default;
1010 if (!chip->pm)
1011 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
1012 if ((base != NULL) && (chip->base == NULL))
1013 chip->base = base + ((i) * 0x10);
1014
1015 if (!gc->direction_input)
1016 gc->direction_input = samsung_gpiolib_2bit_input;
1017 if (!gc->direction_output)
1018 gc->direction_output = samsung_gpiolib_2bit_output;
1019
1020 samsung_gpiolib_add(chip);
1021
1022 s3c24xx_gpiolib_attach_ofnode(chip, S3C24XX_PA_GPIO, i * 0x10);
1023 }
1024 }
1025
1026 static void __init samsung_gpiolib_add_2bit_chips(struct samsung_gpio_chip *chip,
1027 int nr_chips, void __iomem *base,
1028 unsigned int offset)
1029 {
1030 int i;
1031
1032 for (i = 0 ; i < nr_chips; i++, chip++) {
1033 chip->chip.direction_input = samsung_gpiolib_2bit_input;
1034 chip->chip.direction_output = samsung_gpiolib_2bit_output;
1035
1036 if (!chip->config)
1037 chip->config = &samsung_gpio_cfgs[7];
1038 if (!chip->pm)
1039 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
1040 if ((base != NULL) && (chip->base == NULL))
1041 chip->base = base + ((i) * offset);
1042
1043 samsung_gpiolib_add(chip);
1044 }
1045 }
1046
1047 /*
1048 * samsung_gpiolib_add_4bit_chips - 4bit single register GPIO config.
1049 * @chip: The gpio chip that is being configured.
1050 * @nr_chips: The no of chips (gpio ports) for the GPIO being configured.
1051 *
1052 * This helper deal with the GPIO cases where the control register has 4 bits
1053 * of control per GPIO, generally in the form of:
1054 * 0000 = Input
1055 * 0001 = Output
1056 * others = Special functions (dependent on bank)
1057 *
1058 * Note, since the code to deal with the case where there are two control
1059 * registers instead of one, we do not have a separate set of function
1060 * (samsung_gpiolib_add_4bit2_chips)for each case.
1061 */
1062
1063 static void __init samsung_gpiolib_add_4bit_chips(struct samsung_gpio_chip *chip,
1064 int nr_chips, void __iomem *base)
1065 {
1066 int i;
1067
1068 for (i = 0 ; i < nr_chips; i++, chip++) {
1069 chip->chip.direction_input = samsung_gpiolib_4bit_input;
1070 chip->chip.direction_output = samsung_gpiolib_4bit_output;
1071
1072 if (!chip->config)
1073 chip->config = &samsung_gpio_cfgs[2];
1074 if (!chip->pm)
1075 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1076 if ((base != NULL) && (chip->base == NULL))
1077 chip->base = base + ((i) * 0x20);
1078
1079 chip->bitmap_gpio_int = 0;
1080
1081 samsung_gpiolib_add(chip);
1082 }
1083 }
1084
1085 static void __init samsung_gpiolib_add_4bit2_chips(struct samsung_gpio_chip *chip,
1086 int nr_chips)
1087 {
1088 for (; nr_chips > 0; nr_chips--, chip++) {
1089 chip->chip.direction_input = samsung_gpiolib_4bit2_input;
1090 chip->chip.direction_output = samsung_gpiolib_4bit2_output;
1091
1092 if (!chip->config)
1093 chip->config = &samsung_gpio_cfgs[2];
1094 if (!chip->pm)
1095 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1096
1097 samsung_gpiolib_add(chip);
1098 }
1099 }
1100
1101 static void __init s5p64x0_gpiolib_add_rbank(struct samsung_gpio_chip *chip,
1102 int nr_chips)
1103 {
1104 for (; nr_chips > 0; nr_chips--, chip++) {
1105 chip->chip.direction_input = s5p64x0_gpiolib_rbank_input;
1106 chip->chip.direction_output = s5p64x0_gpiolib_rbank_output;
1107
1108 if (!chip->pm)
1109 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1110
1111 samsung_gpiolib_add(chip);
1112 }
1113 }
1114
1115 int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset)
1116 {
1117 struct samsung_gpio_chip *samsung_chip = container_of(chip, struct samsung_gpio_chip, chip);
1118
1119 return samsung_chip->irq_base + offset;
1120 }
1121
1122 #ifdef CONFIG_PLAT_S3C24XX
1123 static int s3c24xx_gpiolib_fbank_to_irq(struct gpio_chip *chip, unsigned offset)
1124 {
1125 if (offset < 4) {
1126 if (soc_is_s3c2412())
1127 return IRQ_EINT0_2412 + offset;
1128 else
1129 return IRQ_EINT0 + offset;
1130 }
1131
1132 if (offset < 8)
1133 return IRQ_EINT4 + offset - 4;
1134
1135 return -EINVAL;
1136 }
1137 #endif
1138
1139 #ifdef CONFIG_PLAT_S3C64XX
1140 static int s3c64xx_gpiolib_mbank_to_irq(struct gpio_chip *chip, unsigned pin)
1141 {
1142 return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO;
1143 }
1144
1145 static int s3c64xx_gpiolib_lbank_to_irq(struct gpio_chip *chip, unsigned pin)
1146 {
1147 return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO;
1148 }
1149 #endif
1150
1151 struct samsung_gpio_chip s3c24xx_gpios[] = {
1152 #ifdef CONFIG_PLAT_S3C24XX
1153 {
1154 .config = &s3c24xx_gpiocfg_banka,
1155 .chip = {
1156 .base = S3C2410_GPA(0),
1157 .owner = THIS_MODULE,
1158 .label = "GPIOA",
1159 .ngpio = 24,
1160 .direction_input = s3c24xx_gpiolib_banka_input,
1161 .direction_output = s3c24xx_gpiolib_banka_output,
1162 },
1163 }, {
1164 .chip = {
1165 .base = S3C2410_GPB(0),
1166 .owner = THIS_MODULE,
1167 .label = "GPIOB",
1168 .ngpio = 16,
1169 },
1170 }, {
1171 .chip = {
1172 .base = S3C2410_GPC(0),
1173 .owner = THIS_MODULE,
1174 .label = "GPIOC",
1175 .ngpio = 16,
1176 },
1177 }, {
1178 .chip = {
1179 .base = S3C2410_GPD(0),
1180 .owner = THIS_MODULE,
1181 .label = "GPIOD",
1182 .ngpio = 16,
1183 },
1184 }, {
1185 .chip = {
1186 .base = S3C2410_GPE(0),
1187 .label = "GPIOE",
1188 .owner = THIS_MODULE,
1189 .ngpio = 16,
1190 },
1191 }, {
1192 .chip = {
1193 .base = S3C2410_GPF(0),
1194 .owner = THIS_MODULE,
1195 .label = "GPIOF",
1196 .ngpio = 8,
1197 .to_irq = s3c24xx_gpiolib_fbank_to_irq,
1198 },
1199 }, {
1200 .irq_base = IRQ_EINT8,
1201 .chip = {
1202 .base = S3C2410_GPG(0),
1203 .owner = THIS_MODULE,
1204 .label = "GPIOG",
1205 .ngpio = 16,
1206 .to_irq = samsung_gpiolib_to_irq,
1207 },
1208 }, {
1209 .chip = {
1210 .base = S3C2410_GPH(0),
1211 .owner = THIS_MODULE,
1212 .label = "GPIOH",
1213 .ngpio = 11,
1214 },
1215 },
1216 /* GPIOS for the S3C2443 and later devices. */
1217 {
1218 .base = S3C2440_GPJCON,
1219 .chip = {
1220 .base = S3C2410_GPJ(0),
1221 .owner = THIS_MODULE,
1222 .label = "GPIOJ",
1223 .ngpio = 16,
1224 },
1225 }, {
1226 .base = S3C2443_GPKCON,
1227 .chip = {
1228 .base = S3C2410_GPK(0),
1229 .owner = THIS_MODULE,
1230 .label = "GPIOK",
1231 .ngpio = 16,
1232 },
1233 }, {
1234 .base = S3C2443_GPLCON,
1235 .chip = {
1236 .base = S3C2410_GPL(0),
1237 .owner = THIS_MODULE,
1238 .label = "GPIOL",
1239 .ngpio = 15,
1240 },
1241 }, {
1242 .base = S3C2443_GPMCON,
1243 .chip = {
1244 .base = S3C2410_GPM(0),
1245 .owner = THIS_MODULE,
1246 .label = "GPIOM",
1247 .ngpio = 2,
1248 },
1249 },
1250 #endif
1251 };
1252
1253 /*
1254 * GPIO bank summary:
1255 *
1256 * Bank GPIOs Style SlpCon ExtInt Group
1257 * A 8 4Bit Yes 1
1258 * B 7 4Bit Yes 1
1259 * C 8 4Bit Yes 2
1260 * D 5 4Bit Yes 3
1261 * E 5 4Bit Yes None
1262 * F 16 2Bit Yes 4 [1]
1263 * G 7 4Bit Yes 5
1264 * H 10 4Bit[2] Yes 6
1265 * I 16 2Bit Yes None
1266 * J 12 2Bit Yes None
1267 * K 16 4Bit[2] No None
1268 * L 15 4Bit[2] No None
1269 * M 6 4Bit No IRQ_EINT
1270 * N 16 2Bit No IRQ_EINT
1271 * O 16 2Bit Yes 7
1272 * P 15 2Bit Yes 8
1273 * Q 9 2Bit Yes 9
1274 *
1275 * [1] BANKF pins 14,15 do not form part of the external interrupt sources
1276 * [2] BANK has two control registers, GPxCON0 and GPxCON1
1277 */
1278
1279 static struct samsung_gpio_chip s3c64xx_gpios_4bit[] = {
1280 #ifdef CONFIG_PLAT_S3C64XX
1281 {
1282 .chip = {
1283 .base = S3C64XX_GPA(0),
1284 .ngpio = S3C64XX_GPIO_A_NR,
1285 .label = "GPA",
1286 },
1287 }, {
1288 .chip = {
1289 .base = S3C64XX_GPB(0),
1290 .ngpio = S3C64XX_GPIO_B_NR,
1291 .label = "GPB",
1292 },
1293 }, {
1294 .chip = {
1295 .base = S3C64XX_GPC(0),
1296 .ngpio = S3C64XX_GPIO_C_NR,
1297 .label = "GPC",
1298 },
1299 }, {
1300 .chip = {
1301 .base = S3C64XX_GPD(0),
1302 .ngpio = S3C64XX_GPIO_D_NR,
1303 .label = "GPD",
1304 },
1305 }, {
1306 .config = &samsung_gpio_cfgs[0],
1307 .chip = {
1308 .base = S3C64XX_GPE(0),
1309 .ngpio = S3C64XX_GPIO_E_NR,
1310 .label = "GPE",
1311 },
1312 }, {
1313 .base = S3C64XX_GPG_BASE,
1314 .chip = {
1315 .base = S3C64XX_GPG(0),
1316 .ngpio = S3C64XX_GPIO_G_NR,
1317 .label = "GPG",
1318 },
1319 }, {
1320 .base = S3C64XX_GPM_BASE,
1321 .config = &samsung_gpio_cfgs[1],
1322 .chip = {
1323 .base = S3C64XX_GPM(0),
1324 .ngpio = S3C64XX_GPIO_M_NR,
1325 .label = "GPM",
1326 .to_irq = s3c64xx_gpiolib_mbank_to_irq,
1327 },
1328 },
1329 #endif
1330 };
1331
1332 static struct samsung_gpio_chip s3c64xx_gpios_4bit2[] = {
1333 #ifdef CONFIG_PLAT_S3C64XX
1334 {
1335 .base = S3C64XX_GPH_BASE + 0x4,
1336 .chip = {
1337 .base = S3C64XX_GPH(0),
1338 .ngpio = S3C64XX_GPIO_H_NR,
1339 .label = "GPH",
1340 },
1341 }, {
1342 .base = S3C64XX_GPK_BASE + 0x4,
1343 .config = &samsung_gpio_cfgs[0],
1344 .chip = {
1345 .base = S3C64XX_GPK(0),
1346 .ngpio = S3C64XX_GPIO_K_NR,
1347 .label = "GPK",
1348 },
1349 }, {
1350 .base = S3C64XX_GPL_BASE + 0x4,
1351 .config = &samsung_gpio_cfgs[1],
1352 .chip = {
1353 .base = S3C64XX_GPL(0),
1354 .ngpio = S3C64XX_GPIO_L_NR,
1355 .label = "GPL",
1356 .to_irq = s3c64xx_gpiolib_lbank_to_irq,
1357 },
1358 },
1359 #endif
1360 };
1361
1362 static struct samsung_gpio_chip s3c64xx_gpios_2bit[] = {
1363 #ifdef CONFIG_PLAT_S3C64XX
1364 {
1365 .base = S3C64XX_GPF_BASE,
1366 .config = &samsung_gpio_cfgs[6],
1367 .chip = {
1368 .base = S3C64XX_GPF(0),
1369 .ngpio = S3C64XX_GPIO_F_NR,
1370 .label = "GPF",
1371 },
1372 }, {
1373 .config = &samsung_gpio_cfgs[7],
1374 .chip = {
1375 .base = S3C64XX_GPI(0),
1376 .ngpio = S3C64XX_GPIO_I_NR,
1377 .label = "GPI",
1378 },
1379 }, {
1380 .config = &samsung_gpio_cfgs[7],
1381 .chip = {
1382 .base = S3C64XX_GPJ(0),
1383 .ngpio = S3C64XX_GPIO_J_NR,
1384 .label = "GPJ",
1385 },
1386 }, {
1387 .config = &samsung_gpio_cfgs[6],
1388 .chip = {
1389 .base = S3C64XX_GPO(0),
1390 .ngpio = S3C64XX_GPIO_O_NR,
1391 .label = "GPO",
1392 },
1393 }, {
1394 .config = &samsung_gpio_cfgs[6],
1395 .chip = {
1396 .base = S3C64XX_GPP(0),
1397 .ngpio = S3C64XX_GPIO_P_NR,
1398 .label = "GPP",
1399 },
1400 }, {
1401 .config = &samsung_gpio_cfgs[6],
1402 .chip = {
1403 .base = S3C64XX_GPQ(0),
1404 .ngpio = S3C64XX_GPIO_Q_NR,
1405 .label = "GPQ",
1406 },
1407 }, {
1408 .base = S3C64XX_GPN_BASE,
1409 .irq_base = IRQ_EINT(0),
1410 .config = &samsung_gpio_cfgs[5],
1411 .chip = {
1412 .base = S3C64XX_GPN(0),
1413 .ngpio = S3C64XX_GPIO_N_NR,
1414 .label = "GPN",
1415 .to_irq = samsung_gpiolib_to_irq,
1416 },
1417 },
1418 #endif
1419 };
1420
1421 /*
1422 * S5P6440 GPIO bank summary:
1423 *
1424 * Bank GPIOs Style SlpCon ExtInt Group
1425 * A 6 4Bit Yes 1
1426 * B 7 4Bit Yes 1
1427 * C 8 4Bit Yes 2
1428 * F 2 2Bit Yes 4 [1]
1429 * G 7 4Bit Yes 5
1430 * H 10 4Bit[2] Yes 6
1431 * I 16 2Bit Yes None
1432 * J 12 2Bit Yes None
1433 * N 16 2Bit No IRQ_EINT
1434 * P 8 2Bit Yes 8
1435 * R 15 4Bit[2] Yes 8
1436 */
1437
1438 static struct samsung_gpio_chip s5p6440_gpios_4bit[] = {
1439 #ifdef CONFIG_CPU_S5P6440
1440 {
1441 .chip = {
1442 .base = S5P6440_GPA(0),
1443 .ngpio = S5P6440_GPIO_A_NR,
1444 .label = "GPA",
1445 },
1446 }, {
1447 .chip = {
1448 .base = S5P6440_GPB(0),
1449 .ngpio = S5P6440_GPIO_B_NR,
1450 .label = "GPB",
1451 },
1452 }, {
1453 .chip = {
1454 .base = S5P6440_GPC(0),
1455 .ngpio = S5P6440_GPIO_C_NR,
1456 .label = "GPC",
1457 },
1458 }, {
1459 .base = S5P64X0_GPG_BASE,
1460 .chip = {
1461 .base = S5P6440_GPG(0),
1462 .ngpio = S5P6440_GPIO_G_NR,
1463 .label = "GPG",
1464 },
1465 },
1466 #endif
1467 };
1468
1469 static struct samsung_gpio_chip s5p6440_gpios_4bit2[] = {
1470 #ifdef CONFIG_CPU_S5P6440
1471 {
1472 .base = S5P64X0_GPH_BASE + 0x4,
1473 .chip = {
1474 .base = S5P6440_GPH(0),
1475 .ngpio = S5P6440_GPIO_H_NR,
1476 .label = "GPH",
1477 },
1478 },
1479 #endif
1480 };
1481
1482 static struct samsung_gpio_chip s5p6440_gpios_rbank[] = {
1483 #ifdef CONFIG_CPU_S5P6440
1484 {
1485 .base = S5P64X0_GPR_BASE + 0x4,
1486 .config = &s5p64x0_gpio_cfg_rbank,
1487 .chip = {
1488 .base = S5P6440_GPR(0),
1489 .ngpio = S5P6440_GPIO_R_NR,
1490 .label = "GPR",
1491 },
1492 },
1493 #endif
1494 };
1495
1496 static struct samsung_gpio_chip s5p6440_gpios_2bit[] = {
1497 #ifdef CONFIG_CPU_S5P6440
1498 {
1499 .base = S5P64X0_GPF_BASE,
1500 .config = &samsung_gpio_cfgs[6],
1501 .chip = {
1502 .base = S5P6440_GPF(0),
1503 .ngpio = S5P6440_GPIO_F_NR,
1504 .label = "GPF",
1505 },
1506 }, {
1507 .base = S5P64X0_GPI_BASE,
1508 .config = &samsung_gpio_cfgs[4],
1509 .chip = {
1510 .base = S5P6440_GPI(0),
1511 .ngpio = S5P6440_GPIO_I_NR,
1512 .label = "GPI",
1513 },
1514 }, {
1515 .base = S5P64X0_GPJ_BASE,
1516 .config = &samsung_gpio_cfgs[4],
1517 .chip = {
1518 .base = S5P6440_GPJ(0),
1519 .ngpio = S5P6440_GPIO_J_NR,
1520 .label = "GPJ",
1521 },
1522 }, {
1523 .base = S5P64X0_GPN_BASE,
1524 .config = &samsung_gpio_cfgs[5],
1525 .chip = {
1526 .base = S5P6440_GPN(0),
1527 .ngpio = S5P6440_GPIO_N_NR,
1528 .label = "GPN",
1529 },
1530 }, {
1531 .base = S5P64X0_GPP_BASE,
1532 .config = &samsung_gpio_cfgs[6],
1533 .chip = {
1534 .base = S5P6440_GPP(0),
1535 .ngpio = S5P6440_GPIO_P_NR,
1536 .label = "GPP",
1537 },
1538 },
1539 #endif
1540 };
1541
1542 /*
1543 * S5P6450 GPIO bank summary:
1544 *
1545 * Bank GPIOs Style SlpCon ExtInt Group
1546 * A 6 4Bit Yes 1
1547 * B 7 4Bit Yes 1
1548 * C 8 4Bit Yes 2
1549 * D 8 4Bit Yes None
1550 * F 2 2Bit Yes None
1551 * G 14 4Bit[2] Yes 5
1552 * H 10 4Bit[2] Yes 6
1553 * I 16 2Bit Yes None
1554 * J 12 2Bit Yes None
1555 * K 5 4Bit Yes None
1556 * N 16 2Bit No IRQ_EINT
1557 * P 11 2Bit Yes 8
1558 * Q 14 2Bit Yes None
1559 * R 15 4Bit[2] Yes None
1560 * S 8 2Bit Yes None
1561 *
1562 * [1] BANKF pins 14,15 do not form part of the external interrupt sources
1563 * [2] BANK has two control registers, GPxCON0 and GPxCON1
1564 */
1565
1566 static struct samsung_gpio_chip s5p6450_gpios_4bit[] = {
1567 #ifdef CONFIG_CPU_S5P6450
1568 {
1569 .chip = {
1570 .base = S5P6450_GPA(0),
1571 .ngpio = S5P6450_GPIO_A_NR,
1572 .label = "GPA",
1573 },
1574 }, {
1575 .chip = {
1576 .base = S5P6450_GPB(0),
1577 .ngpio = S5P6450_GPIO_B_NR,
1578 .label = "GPB",
1579 },
1580 }, {
1581 .chip = {
1582 .base = S5P6450_GPC(0),
1583 .ngpio = S5P6450_GPIO_C_NR,
1584 .label = "GPC",
1585 },
1586 }, {
1587 .chip = {
1588 .base = S5P6450_GPD(0),
1589 .ngpio = S5P6450_GPIO_D_NR,
1590 .label = "GPD",
1591 },
1592 }, {
1593 .base = S5P6450_GPK_BASE,
1594 .chip = {
1595 .base = S5P6450_GPK(0),
1596 .ngpio = S5P6450_GPIO_K_NR,
1597 .label = "GPK",
1598 },
1599 },
1600 #endif
1601 };
1602
1603 static struct samsung_gpio_chip s5p6450_gpios_4bit2[] = {
1604 #ifdef CONFIG_CPU_S5P6450
1605 {
1606 .base = S5P64X0_GPG_BASE + 0x4,
1607 .chip = {
1608 .base = S5P6450_GPG(0),
1609 .ngpio = S5P6450_GPIO_G_NR,
1610 .label = "GPG",
1611 },
1612 }, {
1613 .base = S5P64X0_GPH_BASE + 0x4,
1614 .chip = {
1615 .base = S5P6450_GPH(0),
1616 .ngpio = S5P6450_GPIO_H_NR,
1617 .label = "GPH",
1618 },
1619 },
1620 #endif
1621 };
1622
1623 static struct samsung_gpio_chip s5p6450_gpios_rbank[] = {
1624 #ifdef CONFIG_CPU_S5P6450
1625 {
1626 .base = S5P64X0_GPR_BASE + 0x4,
1627 .config = &s5p64x0_gpio_cfg_rbank,
1628 .chip = {
1629 .base = S5P6450_GPR(0),
1630 .ngpio = S5P6450_GPIO_R_NR,
1631 .label = "GPR",
1632 },
1633 },
1634 #endif
1635 };
1636
1637 static struct samsung_gpio_chip s5p6450_gpios_2bit[] = {
1638 #ifdef CONFIG_CPU_S5P6450
1639 {
1640 .base = S5P64X0_GPF_BASE,
1641 .config = &samsung_gpio_cfgs[6],
1642 .chip = {
1643 .base = S5P6450_GPF(0),
1644 .ngpio = S5P6450_GPIO_F_NR,
1645 .label = "GPF",
1646 },
1647 }, {
1648 .base = S5P64X0_GPI_BASE,
1649 .config = &samsung_gpio_cfgs[4],
1650 .chip = {
1651 .base = S5P6450_GPI(0),
1652 .ngpio = S5P6450_GPIO_I_NR,
1653 .label = "GPI",
1654 },
1655 }, {
1656 .base = S5P64X0_GPJ_BASE,
1657 .config = &samsung_gpio_cfgs[4],
1658 .chip = {
1659 .base = S5P6450_GPJ(0),
1660 .ngpio = S5P6450_GPIO_J_NR,
1661 .label = "GPJ",
1662 },
1663 }, {
1664 .base = S5P64X0_GPN_BASE,
1665 .config = &samsung_gpio_cfgs[5],
1666 .chip = {
1667 .base = S5P6450_GPN(0),
1668 .ngpio = S5P6450_GPIO_N_NR,
1669 .label = "GPN",
1670 },
1671 }, {
1672 .base = S5P64X0_GPP_BASE,
1673 .config = &samsung_gpio_cfgs[6],
1674 .chip = {
1675 .base = S5P6450_GPP(0),
1676 .ngpio = S5P6450_GPIO_P_NR,
1677 .label = "GPP",
1678 },
1679 }, {
1680 .base = S5P6450_GPQ_BASE,
1681 .config = &samsung_gpio_cfgs[5],
1682 .chip = {
1683 .base = S5P6450_GPQ(0),
1684 .ngpio = S5P6450_GPIO_Q_NR,
1685 .label = "GPQ",
1686 },
1687 }, {
1688 .base = S5P6450_GPS_BASE,
1689 .config = &samsung_gpio_cfgs[6],
1690 .chip = {
1691 .base = S5P6450_GPS(0),
1692 .ngpio = S5P6450_GPIO_S_NR,
1693 .label = "GPS",
1694 },
1695 },
1696 #endif
1697 };
1698
1699 /*
1700 * S5PC100 GPIO bank summary:
1701 *
1702 * Bank GPIOs Style INT Type
1703 * A0 8 4Bit GPIO_INT0
1704 * A1 5 4Bit GPIO_INT1
1705 * B 8 4Bit GPIO_INT2
1706 * C 5 4Bit GPIO_INT3
1707 * D 7 4Bit GPIO_INT4
1708 * E0 8 4Bit GPIO_INT5
1709 * E1 6 4Bit GPIO_INT6
1710 * F0 8 4Bit GPIO_INT7
1711 * F1 8 4Bit GPIO_INT8
1712 * F2 8 4Bit GPIO_INT9
1713 * F3 4 4Bit GPIO_INT10
1714 * G0 8 4Bit GPIO_INT11
1715 * G1 3 4Bit GPIO_INT12
1716 * G2 7 4Bit GPIO_INT13
1717 * G3 7 4Bit GPIO_INT14
1718 * H0 8 4Bit WKUP_INT
1719 * H1 8 4Bit WKUP_INT
1720 * H2 8 4Bit WKUP_INT
1721 * H3 8 4Bit WKUP_INT
1722 * I 8 4Bit GPIO_INT15
1723 * J0 8 4Bit GPIO_INT16
1724 * J1 5 4Bit GPIO_INT17
1725 * J2 8 4Bit GPIO_INT18
1726 * J3 8 4Bit GPIO_INT19
1727 * J4 4 4Bit GPIO_INT20
1728 * K0 8 4Bit None
1729 * K1 6 4Bit None
1730 * K2 8 4Bit None
1731 * K3 8 4Bit None
1732 * L0 8 4Bit None
1733 * L1 8 4Bit None
1734 * L2 8 4Bit None
1735 * L3 8 4Bit None
1736 */
1737
1738 static struct samsung_gpio_chip s5pc100_gpios_4bit[] = {
1739 #ifdef CONFIG_CPU_S5PC100
1740 {
1741 .chip = {
1742 .base = S5PC100_GPA0(0),
1743 .ngpio = S5PC100_GPIO_A0_NR,
1744 .label = "GPA0",
1745 },
1746 }, {
1747 .chip = {
1748 .base = S5PC100_GPA1(0),
1749 .ngpio = S5PC100_GPIO_A1_NR,
1750 .label = "GPA1",
1751 },
1752 }, {
1753 .chip = {
1754 .base = S5PC100_GPB(0),
1755 .ngpio = S5PC100_GPIO_B_NR,
1756 .label = "GPB",
1757 },
1758 }, {
1759 .chip = {
1760 .base = S5PC100_GPC(0),
1761 .ngpio = S5PC100_GPIO_C_NR,
1762 .label = "GPC",
1763 },
1764 }, {
1765 .chip = {
1766 .base = S5PC100_GPD(0),
1767 .ngpio = S5PC100_GPIO_D_NR,
1768 .label = "GPD",
1769 },
1770 }, {
1771 .chip = {
1772 .base = S5PC100_GPE0(0),
1773 .ngpio = S5PC100_GPIO_E0_NR,
1774 .label = "GPE0",
1775 },
1776 }, {
1777 .chip = {
1778 .base = S5PC100_GPE1(0),
1779 .ngpio = S5PC100_GPIO_E1_NR,
1780 .label = "GPE1",
1781 },
1782 }, {
1783 .chip = {
1784 .base = S5PC100_GPF0(0),
1785 .ngpio = S5PC100_GPIO_F0_NR,
1786 .label = "GPF0",
1787 },
1788 }, {
1789 .chip = {
1790 .base = S5PC100_GPF1(0),
1791 .ngpio = S5PC100_GPIO_F1_NR,
1792 .label = "GPF1",
1793 },
1794 }, {
1795 .chip = {
1796 .base = S5PC100_GPF2(0),
1797 .ngpio = S5PC100_GPIO_F2_NR,
1798 .label = "GPF2",
1799 },
1800 }, {
1801 .chip = {
1802 .base = S5PC100_GPF3(0),
1803 .ngpio = S5PC100_GPIO_F3_NR,
1804 .label = "GPF3",
1805 },
1806 }, {
1807 .chip = {
1808 .base = S5PC100_GPG0(0),
1809 .ngpio = S5PC100_GPIO_G0_NR,
1810 .label = "GPG0",
1811 },
1812 }, {
1813 .chip = {
1814 .base = S5PC100_GPG1(0),
1815 .ngpio = S5PC100_GPIO_G1_NR,
1816 .label = "GPG1",
1817 },
1818 }, {
1819 .chip = {
1820 .base = S5PC100_GPG2(0),
1821 .ngpio = S5PC100_GPIO_G2_NR,
1822 .label = "GPG2",
1823 },
1824 }, {
1825 .chip = {
1826 .base = S5PC100_GPG3(0),
1827 .ngpio = S5PC100_GPIO_G3_NR,
1828 .label = "GPG3",
1829 },
1830 }, {
1831 .chip = {
1832 .base = S5PC100_GPI(0),
1833 .ngpio = S5PC100_GPIO_I_NR,
1834 .label = "GPI",
1835 },
1836 }, {
1837 .chip = {
1838 .base = S5PC100_GPJ0(0),
1839 .ngpio = S5PC100_GPIO_J0_NR,
1840 .label = "GPJ0",
1841 },
1842 }, {
1843 .chip = {
1844 .base = S5PC100_GPJ1(0),
1845 .ngpio = S5PC100_GPIO_J1_NR,
1846 .label = "GPJ1",
1847 },
1848 }, {
1849 .chip = {
1850 .base = S5PC100_GPJ2(0),
1851 .ngpio = S5PC100_GPIO_J2_NR,
1852 .label = "GPJ2",
1853 },
1854 }, {
1855 .chip = {
1856 .base = S5PC100_GPJ3(0),
1857 .ngpio = S5PC100_GPIO_J3_NR,
1858 .label = "GPJ3",
1859 },
1860 }, {
1861 .chip = {
1862 .base = S5PC100_GPJ4(0),
1863 .ngpio = S5PC100_GPIO_J4_NR,
1864 .label = "GPJ4",
1865 },
1866 }, {
1867 .chip = {
1868 .base = S5PC100_GPK0(0),
1869 .ngpio = S5PC100_GPIO_K0_NR,
1870 .label = "GPK0",
1871 },
1872 }, {
1873 .chip = {
1874 .base = S5PC100_GPK1(0),
1875 .ngpio = S5PC100_GPIO_K1_NR,
1876 .label = "GPK1",
1877 },
1878 }, {
1879 .chip = {
1880 .base = S5PC100_GPK2(0),
1881 .ngpio = S5PC100_GPIO_K2_NR,
1882 .label = "GPK2",
1883 },
1884 }, {
1885 .chip = {
1886 .base = S5PC100_GPK3(0),
1887 .ngpio = S5PC100_GPIO_K3_NR,
1888 .label = "GPK3",
1889 },
1890 }, {
1891 .chip = {
1892 .base = S5PC100_GPL0(0),
1893 .ngpio = S5PC100_GPIO_L0_NR,
1894 .label = "GPL0",
1895 },
1896 }, {
1897 .chip = {
1898 .base = S5PC100_GPL1(0),
1899 .ngpio = S5PC100_GPIO_L1_NR,
1900 .label = "GPL1",
1901 },
1902 }, {
1903 .chip = {
1904 .base = S5PC100_GPL2(0),
1905 .ngpio = S5PC100_GPIO_L2_NR,
1906 .label = "GPL2",
1907 },
1908 }, {
1909 .chip = {
1910 .base = S5PC100_GPL3(0),
1911 .ngpio = S5PC100_GPIO_L3_NR,
1912 .label = "GPL3",
1913 },
1914 }, {
1915 .chip = {
1916 .base = S5PC100_GPL4(0),
1917 .ngpio = S5PC100_GPIO_L4_NR,
1918 .label = "GPL4",
1919 },
1920 }, {
1921 .base = (S5P_VA_GPIO + 0xC00),
1922 .irq_base = IRQ_EINT(0),
1923 .chip = {
1924 .base = S5PC100_GPH0(0),
1925 .ngpio = S5PC100_GPIO_H0_NR,
1926 .label = "GPH0",
1927 .to_irq = samsung_gpiolib_to_irq,
1928 },
1929 }, {
1930 .base = (S5P_VA_GPIO + 0xC20),
1931 .irq_base = IRQ_EINT(8),
1932 .chip = {
1933 .base = S5PC100_GPH1(0),
1934 .ngpio = S5PC100_GPIO_H1_NR,
1935 .label = "GPH1",
1936 .to_irq = samsung_gpiolib_to_irq,
1937 },
1938 }, {
1939 .base = (S5P_VA_GPIO + 0xC40),
1940 .irq_base = IRQ_EINT(16),
1941 .chip = {
1942 .base = S5PC100_GPH2(0),
1943 .ngpio = S5PC100_GPIO_H2_NR,
1944 .label = "GPH2",
1945 .to_irq = samsung_gpiolib_to_irq,
1946 },
1947 }, {
1948 .base = (S5P_VA_GPIO + 0xC60),
1949 .irq_base = IRQ_EINT(24),
1950 .chip = {
1951 .base = S5PC100_GPH3(0),
1952 .ngpio = S5PC100_GPIO_H3_NR,
1953 .label = "GPH3",
1954 .to_irq = samsung_gpiolib_to_irq,
1955 },
1956 },
1957 #endif
1958 };
1959
1960 /*
1961 * Followings are the gpio banks in S5PV210/S5PC110
1962 *
1963 * The 'config' member when left to NULL, is initialized to the default
1964 * structure samsung_gpio_cfgs[3] in the init function below.
1965 *
1966 * The 'base' member is also initialized in the init function below.
1967 * Note: The initialization of 'base' member of samsung_gpio_chip structure
1968 * uses the above macro and depends on the banks being listed in order here.
1969 */
1970
1971 static struct samsung_gpio_chip s5pv210_gpios_4bit[] = {
1972 #ifdef CONFIG_CPU_S5PV210
1973 {
1974 .chip = {
1975 .base = S5PV210_GPA0(0),
1976 .ngpio = S5PV210_GPIO_A0_NR,
1977 .label = "GPA0",
1978 },
1979 }, {
1980 .chip = {
1981 .base = S5PV210_GPA1(0),
1982 .ngpio = S5PV210_GPIO_A1_NR,
1983 .label = "GPA1",
1984 },
1985 }, {
1986 .chip = {
1987 .base = S5PV210_GPB(0),
1988 .ngpio = S5PV210_GPIO_B_NR,
1989 .label = "GPB",
1990 },
1991 }, {
1992 .chip = {
1993 .base = S5PV210_GPC0(0),
1994 .ngpio = S5PV210_GPIO_C0_NR,
1995 .label = "GPC0",
1996 },
1997 }, {
1998 .chip = {
1999 .base = S5PV210_GPC1(0),
2000 .ngpio = S5PV210_GPIO_C1_NR,
2001 .label = "GPC1",
2002 },
2003 }, {
2004 .chip = {
2005 .base = S5PV210_GPD0(0),
2006 .ngpio = S5PV210_GPIO_D0_NR,
2007 .label = "GPD0",
2008 },
2009 }, {
2010 .chip = {
2011 .base = S5PV210_GPD1(0),
2012 .ngpio = S5PV210_GPIO_D1_NR,
2013 .label = "GPD1",
2014 },
2015 }, {
2016 .chip = {
2017 .base = S5PV210_GPE0(0),
2018 .ngpio = S5PV210_GPIO_E0_NR,
2019 .label = "GPE0",
2020 },
2021 }, {
2022 .chip = {
2023 .base = S5PV210_GPE1(0),
2024 .ngpio = S5PV210_GPIO_E1_NR,
2025 .label = "GPE1",
2026 },
2027 }, {
2028 .chip = {
2029 .base = S5PV210_GPF0(0),
2030 .ngpio = S5PV210_GPIO_F0_NR,
2031 .label = "GPF0",
2032 },
2033 }, {
2034 .chip = {
2035 .base = S5PV210_GPF1(0),
2036 .ngpio = S5PV210_GPIO_F1_NR,
2037 .label = "GPF1",
2038 },
2039 }, {
2040 .chip = {
2041 .base = S5PV210_GPF2(0),
2042 .ngpio = S5PV210_GPIO_F2_NR,
2043 .label = "GPF2",
2044 },
2045 }, {
2046 .chip = {
2047 .base = S5PV210_GPF3(0),
2048 .ngpio = S5PV210_GPIO_F3_NR,
2049 .label = "GPF3",
2050 },
2051 }, {
2052 .chip = {
2053 .base = S5PV210_GPG0(0),
2054 .ngpio = S5PV210_GPIO_G0_NR,
2055 .label = "GPG0",
2056 },
2057 }, {
2058 .chip = {
2059 .base = S5PV210_GPG1(0),
2060 .ngpio = S5PV210_GPIO_G1_NR,
2061 .label = "GPG1",
2062 },
2063 }, {
2064 .chip = {
2065 .base = S5PV210_GPG2(0),
2066 .ngpio = S5PV210_GPIO_G2_NR,
2067 .label = "GPG2",
2068 },
2069 }, {
2070 .chip = {
2071 .base = S5PV210_GPG3(0),
2072 .ngpio = S5PV210_GPIO_G3_NR,
2073 .label = "GPG3",
2074 },
2075 }, {
2076 .chip = {
2077 .base = S5PV210_GPI(0),
2078 .ngpio = S5PV210_GPIO_I_NR,
2079 .label = "GPI",
2080 },
2081 }, {
2082 .chip = {
2083 .base = S5PV210_GPJ0(0),
2084 .ngpio = S5PV210_GPIO_J0_NR,
2085 .label = "GPJ0",
2086 },
2087 }, {
2088 .chip = {
2089 .base = S5PV210_GPJ1(0),
2090 .ngpio = S5PV210_GPIO_J1_NR,
2091 .label = "GPJ1",
2092 },
2093 }, {
2094 .chip = {
2095 .base = S5PV210_GPJ2(0),
2096 .ngpio = S5PV210_GPIO_J2_NR,
2097 .label = "GPJ2",
2098 },
2099 }, {
2100 .chip = {
2101 .base = S5PV210_GPJ3(0),
2102 .ngpio = S5PV210_GPIO_J3_NR,
2103 .label = "GPJ3",
2104 },
2105 }, {
2106 .chip = {
2107 .base = S5PV210_GPJ4(0),
2108 .ngpio = S5PV210_GPIO_J4_NR,
2109 .label = "GPJ4",
2110 },
2111 }, {
2112 .chip = {
2113 .base = S5PV210_MP01(0),
2114 .ngpio = S5PV210_GPIO_MP01_NR,
2115 .label = "MP01",
2116 },
2117 }, {
2118 .chip = {
2119 .base = S5PV210_MP02(0),
2120 .ngpio = S5PV210_GPIO_MP02_NR,
2121 .label = "MP02",
2122 },
2123 }, {
2124 .chip = {
2125 .base = S5PV210_MP03(0),
2126 .ngpio = S5PV210_GPIO_MP03_NR,
2127 .label = "MP03",
2128 },
2129 }, {
2130 .chip = {
2131 .base = S5PV210_MP04(0),
2132 .ngpio = S5PV210_GPIO_MP04_NR,
2133 .label = "MP04",
2134 },
2135 }, {
2136 .chip = {
2137 .base = S5PV210_MP05(0),
2138 .ngpio = S5PV210_GPIO_MP05_NR,
2139 .label = "MP05",
2140 },
2141 }, {
2142 .base = (S5P_VA_GPIO + 0xC00),
2143 .irq_base = IRQ_EINT(0),
2144 .chip = {
2145 .base = S5PV210_GPH0(0),
2146 .ngpio = S5PV210_GPIO_H0_NR,
2147 .label = "GPH0",
2148 .to_irq = samsung_gpiolib_to_irq,
2149 },
2150 }, {
2151 .base = (S5P_VA_GPIO + 0xC20),
2152 .irq_base = IRQ_EINT(8),
2153 .chip = {
2154 .base = S5PV210_GPH1(0),
2155 .ngpio = S5PV210_GPIO_H1_NR,
2156 .label = "GPH1",
2157 .to_irq = samsung_gpiolib_to_irq,
2158 },
2159 }, {
2160 .base = (S5P_VA_GPIO + 0xC40),
2161 .irq_base = IRQ_EINT(16),
2162 .chip = {
2163 .base = S5PV210_GPH2(0),
2164 .ngpio = S5PV210_GPIO_H2_NR,
2165 .label = "GPH2",
2166 .to_irq = samsung_gpiolib_to_irq,
2167 },
2168 }, {
2169 .base = (S5P_VA_GPIO + 0xC60),
2170 .irq_base = IRQ_EINT(24),
2171 .chip = {
2172 .base = S5PV210_GPH3(0),
2173 .ngpio = S5PV210_GPIO_H3_NR,
2174 .label = "GPH3",
2175 .to_irq = samsung_gpiolib_to_irq,
2176 },
2177 },
2178 #endif
2179 };
2180
2181 /*
2182 * Followings are the gpio banks in EXYNOS SoCs
2183 *
2184 * The 'config' member when left to NULL, is initialized to the default
2185 * structure exynos_gpio_cfg in the init function below.
2186 *
2187 * The 'base' member is also initialized in the init function below.
2188 * Note: The initialization of 'base' member of samsung_gpio_chip structure
2189 * uses the above macro and depends on the banks being listed in order here.
2190 */
2191
2192 #ifdef CONFIG_ARCH_EXYNOS4
2193 static struct samsung_gpio_chip exynos4_gpios_1[] = {
2194 {
2195 .chip = {
2196 .base = EXYNOS4_GPA0(0),
2197 .ngpio = EXYNOS4_GPIO_A0_NR,
2198 .label = "GPA0",
2199 },
2200 }, {
2201 .chip = {
2202 .base = EXYNOS4_GPA1(0),
2203 .ngpio = EXYNOS4_GPIO_A1_NR,
2204 .label = "GPA1",
2205 },
2206 }, {
2207 .chip = {
2208 .base = EXYNOS4_GPB(0),
2209 .ngpio = EXYNOS4_GPIO_B_NR,
2210 .label = "GPB",
2211 },
2212 }, {
2213 .chip = {
2214 .base = EXYNOS4_GPC0(0),
2215 .ngpio = EXYNOS4_GPIO_C0_NR,
2216 .label = "GPC0",
2217 },
2218 }, {
2219 .chip = {
2220 .base = EXYNOS4_GPC1(0),
2221 .ngpio = EXYNOS4_GPIO_C1_NR,
2222 .label = "GPC1",
2223 },
2224 }, {
2225 .chip = {
2226 .base = EXYNOS4_GPD0(0),
2227 .ngpio = EXYNOS4_GPIO_D0_NR,
2228 .label = "GPD0",
2229 },
2230 }, {
2231 .chip = {
2232 .base = EXYNOS4_GPD1(0),
2233 .ngpio = EXYNOS4_GPIO_D1_NR,
2234 .label = "GPD1",
2235 },
2236 }, {
2237 .chip = {
2238 .base = EXYNOS4_GPE0(0),
2239 .ngpio = EXYNOS4_GPIO_E0_NR,
2240 .label = "GPE0",
2241 },
2242 }, {
2243 .chip = {
2244 .base = EXYNOS4_GPE1(0),
2245 .ngpio = EXYNOS4_GPIO_E1_NR,
2246 .label = "GPE1",
2247 },
2248 }, {
2249 .chip = {
2250 .base = EXYNOS4_GPE2(0),
2251 .ngpio = EXYNOS4_GPIO_E2_NR,
2252 .label = "GPE2",
2253 },
2254 }, {
2255 .chip = {
2256 .base = EXYNOS4_GPE3(0),
2257 .ngpio = EXYNOS4_GPIO_E3_NR,
2258 .label = "GPE3",
2259 },
2260 }, {
2261 .chip = {
2262 .base = EXYNOS4_GPE4(0),
2263 .ngpio = EXYNOS4_GPIO_E4_NR,
2264 .label = "GPE4",
2265 },
2266 }, {
2267 .chip = {
2268 .base = EXYNOS4_GPF0(0),
2269 .ngpio = EXYNOS4_GPIO_F0_NR,
2270 .label = "GPF0",
2271 },
2272 }, {
2273 .chip = {
2274 .base = EXYNOS4_GPF1(0),
2275 .ngpio = EXYNOS4_GPIO_F1_NR,
2276 .label = "GPF1",
2277 },
2278 }, {
2279 .chip = {
2280 .base = EXYNOS4_GPF2(0),
2281 .ngpio = EXYNOS4_GPIO_F2_NR,
2282 .label = "GPF2",
2283 },
2284 }, {
2285 .chip = {
2286 .base = EXYNOS4_GPF3(0),
2287 .ngpio = EXYNOS4_GPIO_F3_NR,
2288 .label = "GPF3",
2289 },
2290 },
2291 };
2292 #endif
2293
2294 #ifdef CONFIG_ARCH_EXYNOS4
2295 static struct samsung_gpio_chip exynos4_gpios_2[] = {
2296 {
2297 .chip = {
2298 .base = EXYNOS4_GPJ0(0),
2299 .ngpio = EXYNOS4_GPIO_J0_NR,
2300 .label = "GPJ0",
2301 },
2302 }, {
2303 .chip = {
2304 .base = EXYNOS4_GPJ1(0),
2305 .ngpio = EXYNOS4_GPIO_J1_NR,
2306 .label = "GPJ1",
2307 },
2308 }, {
2309 .chip = {
2310 .base = EXYNOS4_GPK0(0),
2311 .ngpio = EXYNOS4_GPIO_K0_NR,
2312 .label = "GPK0",
2313 },
2314 }, {
2315 .chip = {
2316 .base = EXYNOS4_GPK1(0),
2317 .ngpio = EXYNOS4_GPIO_K1_NR,
2318 .label = "GPK1",
2319 },
2320 }, {
2321 .chip = {
2322 .base = EXYNOS4_GPK2(0),
2323 .ngpio = EXYNOS4_GPIO_K2_NR,
2324 .label = "GPK2",
2325 },
2326 }, {
2327 .chip = {
2328 .base = EXYNOS4_GPK3(0),
2329 .ngpio = EXYNOS4_GPIO_K3_NR,
2330 .label = "GPK3",
2331 },
2332 }, {
2333 .chip = {
2334 .base = EXYNOS4_GPL0(0),
2335 .ngpio = EXYNOS4_GPIO_L0_NR,
2336 .label = "GPL0",
2337 },
2338 }, {
2339 .chip = {
2340 .base = EXYNOS4_GPL1(0),
2341 .ngpio = EXYNOS4_GPIO_L1_NR,
2342 .label = "GPL1",
2343 },
2344 }, {
2345 .chip = {
2346 .base = EXYNOS4_GPL2(0),
2347 .ngpio = EXYNOS4_GPIO_L2_NR,
2348 .label = "GPL2",
2349 },
2350 }, {
2351 .config = &samsung_gpio_cfgs[8],
2352 .chip = {
2353 .base = EXYNOS4_GPY0(0),
2354 .ngpio = EXYNOS4_GPIO_Y0_NR,
2355 .label = "GPY0",
2356 },
2357 }, {
2358 .config = &samsung_gpio_cfgs[8],
2359 .chip = {
2360 .base = EXYNOS4_GPY1(0),
2361 .ngpio = EXYNOS4_GPIO_Y1_NR,
2362 .label = "GPY1",
2363 },
2364 }, {
2365 .config = &samsung_gpio_cfgs[8],
2366 .chip = {
2367 .base = EXYNOS4_GPY2(0),
2368 .ngpio = EXYNOS4_GPIO_Y2_NR,
2369 .label = "GPY2",
2370 },
2371 }, {
2372 .config = &samsung_gpio_cfgs[8],
2373 .chip = {
2374 .base = EXYNOS4_GPY3(0),
2375 .ngpio = EXYNOS4_GPIO_Y3_NR,
2376 .label = "GPY3",
2377 },
2378 }, {
2379 .config = &samsung_gpio_cfgs[8],
2380 .chip = {
2381 .base = EXYNOS4_GPY4(0),
2382 .ngpio = EXYNOS4_GPIO_Y4_NR,
2383 .label = "GPY4",
2384 },
2385 }, {
2386 .config = &samsung_gpio_cfgs[8],
2387 .chip = {
2388 .base = EXYNOS4_GPY5(0),
2389 .ngpio = EXYNOS4_GPIO_Y5_NR,
2390 .label = "GPY5",
2391 },
2392 }, {
2393 .config = &samsung_gpio_cfgs[8],
2394 .chip = {
2395 .base = EXYNOS4_GPY6(0),
2396 .ngpio = EXYNOS4_GPIO_Y6_NR,
2397 .label = "GPY6",
2398 },
2399 }, {
2400 .config = &samsung_gpio_cfgs[9],
2401 .irq_base = IRQ_EINT(0),
2402 .chip = {
2403 .base = EXYNOS4_GPX0(0),
2404 .ngpio = EXYNOS4_GPIO_X0_NR,
2405 .label = "GPX0",
2406 .to_irq = samsung_gpiolib_to_irq,
2407 },
2408 }, {
2409 .config = &samsung_gpio_cfgs[9],
2410 .irq_base = IRQ_EINT(8),
2411 .chip = {
2412 .base = EXYNOS4_GPX1(0),
2413 .ngpio = EXYNOS4_GPIO_X1_NR,
2414 .label = "GPX1",
2415 .to_irq = samsung_gpiolib_to_irq,
2416 },
2417 }, {
2418 .config = &samsung_gpio_cfgs[9],
2419 .irq_base = IRQ_EINT(16),
2420 .chip = {
2421 .base = EXYNOS4_GPX2(0),
2422 .ngpio = EXYNOS4_GPIO_X2_NR,
2423 .label = "GPX2",
2424 .to_irq = samsung_gpiolib_to_irq,
2425 },
2426 }, {
2427 .config = &samsung_gpio_cfgs[9],
2428 .irq_base = IRQ_EINT(24),
2429 .chip = {
2430 .base = EXYNOS4_GPX3(0),
2431 .ngpio = EXYNOS4_GPIO_X3_NR,
2432 .label = "GPX3",
2433 .to_irq = samsung_gpiolib_to_irq,
2434 },
2435 },
2436 };
2437 #endif
2438
2439 #ifdef CONFIG_ARCH_EXYNOS4
2440 static struct samsung_gpio_chip exynos4_gpios_3[] = {
2441 {
2442 .chip = {
2443 .base = EXYNOS4_GPZ(0),
2444 .ngpio = EXYNOS4_GPIO_Z_NR,
2445 .label = "GPZ",
2446 },
2447 },
2448 };
2449 #endif
2450
2451 #ifdef CONFIG_SOC_EXYNOS5250
2452 static struct samsung_gpio_chip exynos5_gpios_1[] = {
2453 {
2454 .chip = {
2455 .base = EXYNOS5_GPA0(0),
2456 .ngpio = EXYNOS5_GPIO_A0_NR,
2457 .label = "GPA0",
2458 },
2459 }, {
2460 .chip = {
2461 .base = EXYNOS5_GPA1(0),
2462 .ngpio = EXYNOS5_GPIO_A1_NR,
2463 .label = "GPA1",
2464 },
2465 }, {
2466 .chip = {
2467 .base = EXYNOS5_GPA2(0),
2468 .ngpio = EXYNOS5_GPIO_A2_NR,
2469 .label = "GPA2",
2470 },
2471 }, {
2472 .chip = {
2473 .base = EXYNOS5_GPB0(0),
2474 .ngpio = EXYNOS5_GPIO_B0_NR,
2475 .label = "GPB0",
2476 },
2477 }, {
2478 .chip = {
2479 .base = EXYNOS5_GPB1(0),
2480 .ngpio = EXYNOS5_GPIO_B1_NR,
2481 .label = "GPB1",
2482 },
2483 }, {
2484 .chip = {
2485 .base = EXYNOS5_GPB2(0),
2486 .ngpio = EXYNOS5_GPIO_B2_NR,
2487 .label = "GPB2",
2488 },
2489 }, {
2490 .chip = {
2491 .base = EXYNOS5_GPB3(0),
2492 .ngpio = EXYNOS5_GPIO_B3_NR,
2493 .label = "GPB3",
2494 },
2495 }, {
2496 .chip = {
2497 .base = EXYNOS5_GPC0(0),
2498 .ngpio = EXYNOS5_GPIO_C0_NR,
2499 .label = "GPC0",
2500 },
2501 }, {
2502 .chip = {
2503 .base = EXYNOS5_GPC1(0),
2504 .ngpio = EXYNOS5_GPIO_C1_NR,
2505 .label = "GPC1",
2506 },
2507 }, {
2508 .chip = {
2509 .base = EXYNOS5_GPC2(0),
2510 .ngpio = EXYNOS5_GPIO_C2_NR,
2511 .label = "GPC2",
2512 },
2513 }, {
2514 .chip = {
2515 .base = EXYNOS5_GPC3(0),
2516 .ngpio = EXYNOS5_GPIO_C3_NR,
2517 .label = "GPC3",
2518 },
2519 }, {
2520 .chip = {
2521 .base = EXYNOS5_GPD0(0),
2522 .ngpio = EXYNOS5_GPIO_D0_NR,
2523 .label = "GPD0",
2524 },
2525 }, {
2526 .chip = {
2527 .base = EXYNOS5_GPD1(0),
2528 .ngpio = EXYNOS5_GPIO_D1_NR,
2529 .label = "GPD1",
2530 },
2531 }, {
2532 .chip = {
2533 .base = EXYNOS5_GPY0(0),
2534 .ngpio = EXYNOS5_GPIO_Y0_NR,
2535 .label = "GPY0",
2536 },
2537 }, {
2538 .chip = {
2539 .base = EXYNOS5_GPY1(0),
2540 .ngpio = EXYNOS5_GPIO_Y1_NR,
2541 .label = "GPY1",
2542 },
2543 }, {
2544 .chip = {
2545 .base = EXYNOS5_GPY2(0),
2546 .ngpio = EXYNOS5_GPIO_Y2_NR,
2547 .label = "GPY2",
2548 },
2549 }, {
2550 .chip = {
2551 .base = EXYNOS5_GPY3(0),
2552 .ngpio = EXYNOS5_GPIO_Y3_NR,
2553 .label = "GPY3",
2554 },
2555 }, {
2556 .chip = {
2557 .base = EXYNOS5_GPY4(0),
2558 .ngpio = EXYNOS5_GPIO_Y4_NR,
2559 .label = "GPY4",
2560 },
2561 }, {
2562 .chip = {
2563 .base = EXYNOS5_GPY5(0),
2564 .ngpio = EXYNOS5_GPIO_Y5_NR,
2565 .label = "GPY5",
2566 },
2567 }, {
2568 .chip = {
2569 .base = EXYNOS5_GPY6(0),
2570 .ngpio = EXYNOS5_GPIO_Y6_NR,
2571 .label = "GPY6",
2572 },
2573 }, {
2574 .chip = {
2575 .base = EXYNOS5_GPC4(0),
2576 .ngpio = EXYNOS5_GPIO_C4_NR,
2577 .label = "GPC4",
2578 },
2579 }, {
2580 .config = &samsung_gpio_cfgs[9],
2581 .irq_base = IRQ_EINT(0),
2582 .chip = {
2583 .base = EXYNOS5_GPX0(0),
2584 .ngpio = EXYNOS5_GPIO_X0_NR,
2585 .label = "GPX0",
2586 .to_irq = samsung_gpiolib_to_irq,
2587 },
2588 }, {
2589 .config = &samsung_gpio_cfgs[9],
2590 .irq_base = IRQ_EINT(8),
2591 .chip = {
2592 .base = EXYNOS5_GPX1(0),
2593 .ngpio = EXYNOS5_GPIO_X1_NR,
2594 .label = "GPX1",
2595 .to_irq = samsung_gpiolib_to_irq,
2596 },
2597 }, {
2598 .config = &samsung_gpio_cfgs[9],
2599 .irq_base = IRQ_EINT(16),
2600 .chip = {
2601 .base = EXYNOS5_GPX2(0),
2602 .ngpio = EXYNOS5_GPIO_X2_NR,
2603 .label = "GPX2",
2604 .to_irq = samsung_gpiolib_to_irq,
2605 },
2606 }, {
2607 .config = &samsung_gpio_cfgs[9],
2608 .irq_base = IRQ_EINT(24),
2609 .chip = {
2610 .base = EXYNOS5_GPX3(0),
2611 .ngpio = EXYNOS5_GPIO_X3_NR,
2612 .label = "GPX3",
2613 .to_irq = samsung_gpiolib_to_irq,
2614 },
2615 },
2616 };
2617 #endif
2618
2619 #ifdef CONFIG_SOC_EXYNOS5250
2620 static struct samsung_gpio_chip exynos5_gpios_2[] = {
2621 {
2622 .chip = {
2623 .base = EXYNOS5_GPE0(0),
2624 .ngpio = EXYNOS5_GPIO_E0_NR,
2625 .label = "GPE0",
2626 },
2627 }, {
2628 .chip = {
2629 .base = EXYNOS5_GPE1(0),
2630 .ngpio = EXYNOS5_GPIO_E1_NR,
2631 .label = "GPE1",
2632 },
2633 }, {
2634 .chip = {
2635 .base = EXYNOS5_GPF0(0),
2636 .ngpio = EXYNOS5_GPIO_F0_NR,
2637 .label = "GPF0",
2638 },
2639 }, {
2640 .chip = {
2641 .base = EXYNOS5_GPF1(0),
2642 .ngpio = EXYNOS5_GPIO_F1_NR,
2643 .label = "GPF1",
2644 },
2645 }, {
2646 .chip = {
2647 .base = EXYNOS5_GPG0(0),
2648 .ngpio = EXYNOS5_GPIO_G0_NR,
2649 .label = "GPG0",
2650 },
2651 }, {
2652 .chip = {
2653 .base = EXYNOS5_GPG1(0),
2654 .ngpio = EXYNOS5_GPIO_G1_NR,
2655 .label = "GPG1",
2656 },
2657 }, {
2658 .chip = {
2659 .base = EXYNOS5_GPG2(0),
2660 .ngpio = EXYNOS5_GPIO_G2_NR,
2661 .label = "GPG2",
2662 },
2663 }, {
2664 .chip = {
2665 .base = EXYNOS5_GPH0(0),
2666 .ngpio = EXYNOS5_GPIO_H0_NR,
2667 .label = "GPH0",
2668 },
2669 }, {
2670 .chip = {
2671 .base = EXYNOS5_GPH1(0),
2672 .ngpio = EXYNOS5_GPIO_H1_NR,
2673 .label = "GPH1",
2674
2675 },
2676 },
2677 };
2678 #endif
2679
2680 #ifdef CONFIG_SOC_EXYNOS5250
2681 static struct samsung_gpio_chip exynos5_gpios_3[] = {
2682 {
2683 .chip = {
2684 .base = EXYNOS5_GPV0(0),
2685 .ngpio = EXYNOS5_GPIO_V0_NR,
2686 .label = "GPV0",
2687 },
2688 }, {
2689 .chip = {
2690 .base = EXYNOS5_GPV1(0),
2691 .ngpio = EXYNOS5_GPIO_V1_NR,
2692 .label = "GPV1",
2693 },
2694 }, {
2695 .chip = {
2696 .base = EXYNOS5_GPV2(0),
2697 .ngpio = EXYNOS5_GPIO_V2_NR,
2698 .label = "GPV2",
2699 },
2700 }, {
2701 .chip = {
2702 .base = EXYNOS5_GPV3(0),
2703 .ngpio = EXYNOS5_GPIO_V3_NR,
2704 .label = "GPV3",
2705 },
2706 }, {
2707 .chip = {
2708 .base = EXYNOS5_GPV4(0),
2709 .ngpio = EXYNOS5_GPIO_V4_NR,
2710 .label = "GPV4",
2711 },
2712 },
2713 };
2714 #endif
2715
2716 #ifdef CONFIG_SOC_EXYNOS5250
2717 static struct samsung_gpio_chip exynos5_gpios_4[] = {
2718 {
2719 .chip = {
2720 .base = EXYNOS5_GPZ(0),
2721 .ngpio = EXYNOS5_GPIO_Z_NR,
2722 .label = "GPZ",
2723 },
2724 },
2725 };
2726 #endif
2727
2728
2729 #if defined(CONFIG_ARCH_EXYNOS) && defined(CONFIG_OF)
2730 static int exynos_gpio_xlate(struct gpio_chip *gc,
2731 const struct of_phandle_args *gpiospec, u32 *flags)
2732 {
2733 unsigned int pin;
2734
2735 if (WARN_ON(gc->of_gpio_n_cells < 4))
2736 return -EINVAL;
2737
2738 if (WARN_ON(gpiospec->args_count < gc->of_gpio_n_cells))
2739 return -EINVAL;
2740
2741 if (gpiospec->args[0] > gc->ngpio)
2742 return -EINVAL;
2743
2744 pin = gc->base + gpiospec->args[0];
2745
2746 if (s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(gpiospec->args[1])))
2747 pr_warn("gpio_xlate: failed to set pin function\n");
2748 if (s3c_gpio_setpull(pin, gpiospec->args[2] & 0xffff))
2749 pr_warn("gpio_xlate: failed to set pin pull up/down\n");
2750 if (s5p_gpio_set_drvstr(pin, gpiospec->args[3]))
2751 pr_warn("gpio_xlate: failed to set pin drive strength\n");
2752
2753 if (flags)
2754 *flags = gpiospec->args[2] >> 16;
2755
2756 return gpiospec->args[0];
2757 }
2758
2759 static const struct of_device_id exynos_gpio_dt_match[] __initdata = {
2760 { .compatible = "samsung,exynos4-gpio", },
2761 {}
2762 };
2763
2764 static __init void exynos_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
2765 u64 base, u64 offset)
2766 {
2767 struct gpio_chip *gc = &chip->chip;
2768 u64 address;
2769
2770 if (!of_have_populated_dt())
2771 return;
2772
2773 address = chip->base ? base + ((u32)chip->base & 0xfff) : base + offset;
2774 gc->of_node = of_find_matching_node_by_address(NULL,
2775 exynos_gpio_dt_match, address);
2776 if (!gc->of_node) {
2777 pr_info("gpio: device tree node not found for gpio controller"
2778 " with base address %08llx\n", address);
2779 return;
2780 }
2781 gc->of_gpio_n_cells = 4;
2782 gc->of_xlate = exynos_gpio_xlate;
2783 }
2784 #elif defined(CONFIG_ARCH_EXYNOS)
2785 static __init void exynos_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
2786 u64 base, u64 offset)
2787 {
2788 return;
2789 }
2790 #endif /* defined(CONFIG_ARCH_EXYNOS) && defined(CONFIG_OF) */
2791
2792 static __init void exynos4_gpiolib_init(void)
2793 {
2794 #ifdef CONFIG_CPU_EXYNOS4210
2795 struct samsung_gpio_chip *chip;
2796 int i, nr_chips;
2797 void __iomem *gpio_base1, *gpio_base2, *gpio_base3;
2798 int group = 0;
2799 void __iomem *gpx_base;
2800
2801 /* gpio part1 */
2802 gpio_base1 = ioremap(EXYNOS4_PA_GPIO1, SZ_4K);
2803 if (gpio_base1 == NULL) {
2804 pr_err("unable to ioremap for gpio_base1\n");
2805 goto err_ioremap1;
2806 }
2807
2808 chip = exynos4_gpios_1;
2809 nr_chips = ARRAY_SIZE(exynos4_gpios_1);
2810
2811 for (i = 0; i < nr_chips; i++, chip++) {
2812 if (!chip->config) {
2813 chip->config = &exynos_gpio_cfg;
2814 chip->group = group++;
2815 }
2816 exynos_gpiolib_attach_ofnode(chip,
2817 EXYNOS4_PA_GPIO1, i * 0x20);
2818 }
2819 samsung_gpiolib_add_4bit_chips(exynos4_gpios_1,
2820 nr_chips, gpio_base1);
2821
2822 /* gpio part2 */
2823 gpio_base2 = ioremap(EXYNOS4_PA_GPIO2, SZ_4K);
2824 if (gpio_base2 == NULL) {
2825 pr_err("unable to ioremap for gpio_base2\n");
2826 goto err_ioremap2;
2827 }
2828
2829 /* need to set base address for gpx */
2830 chip = &exynos4_gpios_2[16];
2831 gpx_base = gpio_base2 + 0xC00;
2832 for (i = 0; i < 4; i++, chip++, gpx_base += 0x20)
2833 chip->base = gpx_base;
2834
2835 chip = exynos4_gpios_2;
2836 nr_chips = ARRAY_SIZE(exynos4_gpios_2);
2837
2838 for (i = 0; i < nr_chips; i++, chip++) {
2839 if (!chip->config) {
2840 chip->config = &exynos_gpio_cfg;
2841 chip->group = group++;
2842 }
2843 exynos_gpiolib_attach_ofnode(chip,
2844 EXYNOS4_PA_GPIO2, i * 0x20);
2845 }
2846 samsung_gpiolib_add_4bit_chips(exynos4_gpios_2,
2847 nr_chips, gpio_base2);
2848
2849 /* gpio part3 */
2850 gpio_base3 = ioremap(EXYNOS4_PA_GPIO3, SZ_256);
2851 if (gpio_base3 == NULL) {
2852 pr_err("unable to ioremap for gpio_base3\n");
2853 goto err_ioremap3;
2854 }
2855
2856 chip = exynos4_gpios_3;
2857 nr_chips = ARRAY_SIZE(exynos4_gpios_3);
2858
2859 for (i = 0; i < nr_chips; i++, chip++) {
2860 if (!chip->config) {
2861 chip->config = &exynos_gpio_cfg;
2862 chip->group = group++;
2863 }
2864 exynos_gpiolib_attach_ofnode(chip,
2865 EXYNOS4_PA_GPIO3, i * 0x20);
2866 }
2867 samsung_gpiolib_add_4bit_chips(exynos4_gpios_3,
2868 nr_chips, gpio_base3);
2869
2870 #if defined(CONFIG_CPU_EXYNOS4210) && defined(CONFIG_S5P_GPIO_INT)
2871 s5p_register_gpioint_bank(IRQ_GPIO_XA, 0, IRQ_GPIO1_NR_GROUPS);
2872 s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS);
2873 #endif
2874
2875 return;
2876
2877 err_ioremap3:
2878 iounmap(gpio_base2);
2879 err_ioremap2:
2880 iounmap(gpio_base1);
2881 err_ioremap1:
2882 return;
2883 #endif /* CONFIG_CPU_EXYNOS4210 */
2884 }
2885
2886 static __init void exynos5_gpiolib_init(void)
2887 {
2888 #ifdef CONFIG_SOC_EXYNOS5250
2889 struct samsung_gpio_chip *chip;
2890 int i, nr_chips;
2891 void __iomem *gpio_base1, *gpio_base2, *gpio_base3, *gpio_base4;
2892 int group = 0;
2893 void __iomem *gpx_base;
2894
2895 /* gpio part1 */
2896 gpio_base1 = ioremap(EXYNOS5_PA_GPIO1, SZ_4K);
2897 if (gpio_base1 == NULL) {
2898 pr_err("unable to ioremap for gpio_base1\n");
2899 goto err_ioremap1;
2900 }
2901
2902 /* need to set base address for gpc4 */
2903 exynos5_gpios_1[20].base = gpio_base1 + 0x2E0;
2904
2905 /* need to set base address for gpx */
2906 chip = &exynos5_gpios_1[21];
2907 gpx_base = gpio_base1 + 0xC00;
2908 for (i = 0; i < 4; i++, chip++, gpx_base += 0x20)
2909 chip->base = gpx_base;
2910
2911 chip = exynos5_gpios_1;
2912 nr_chips = ARRAY_SIZE(exynos5_gpios_1);
2913
2914 for (i = 0; i < nr_chips; i++, chip++) {
2915 if (!chip->config) {
2916 chip->config = &exynos_gpio_cfg;
2917 chip->group = group++;
2918 }
2919 exynos_gpiolib_attach_ofnode(chip,
2920 EXYNOS5_PA_GPIO1, i * 0x20);
2921 }
2922 samsung_gpiolib_add_4bit_chips(exynos5_gpios_1,
2923 nr_chips, gpio_base1);
2924
2925 /* gpio part2 */
2926 gpio_base2 = ioremap(EXYNOS5_PA_GPIO2, SZ_4K);
2927 if (gpio_base2 == NULL) {
2928 pr_err("unable to ioremap for gpio_base2\n");
2929 goto err_ioremap2;
2930 }
2931
2932 chip = exynos5_gpios_2;
2933 nr_chips = ARRAY_SIZE(exynos5_gpios_2);
2934
2935 for (i = 0; i < nr_chips; i++, chip++) {
2936 if (!chip->config) {
2937 chip->config = &exynos_gpio_cfg;
2938 chip->group = group++;
2939 }
2940 exynos_gpiolib_attach_ofnode(chip,
2941 EXYNOS5_PA_GPIO2, i * 0x20);
2942 }
2943 samsung_gpiolib_add_4bit_chips(exynos5_gpios_2,
2944 nr_chips, gpio_base2);
2945
2946 /* gpio part3 */
2947 gpio_base3 = ioremap(EXYNOS5_PA_GPIO3, SZ_4K);
2948 if (gpio_base3 == NULL) {
2949 pr_err("unable to ioremap for gpio_base3\n");
2950 goto err_ioremap3;
2951 }
2952
2953 /* need to set base address for gpv */
2954 exynos5_gpios_3[0].base = gpio_base3;
2955 exynos5_gpios_3[1].base = gpio_base3 + 0x20;
2956 exynos5_gpios_3[2].base = gpio_base3 + 0x60;
2957 exynos5_gpios_3[3].base = gpio_base3 + 0x80;
2958 exynos5_gpios_3[4].base = gpio_base3 + 0xC0;
2959
2960 chip = exynos5_gpios_3;
2961 nr_chips = ARRAY_SIZE(exynos5_gpios_3);
2962
2963 for (i = 0; i < nr_chips; i++, chip++) {
2964 if (!chip->config) {
2965 chip->config = &exynos_gpio_cfg;
2966 chip->group = group++;
2967 }
2968 exynos_gpiolib_attach_ofnode(chip,
2969 EXYNOS5_PA_GPIO3, i * 0x20);
2970 }
2971 samsung_gpiolib_add_4bit_chips(exynos5_gpios_3,
2972 nr_chips, gpio_base3);
2973
2974 /* gpio part4 */
2975 gpio_base4 = ioremap(EXYNOS5_PA_GPIO4, SZ_4K);
2976 if (gpio_base4 == NULL) {
2977 pr_err("unable to ioremap for gpio_base4\n");
2978 goto err_ioremap4;
2979 }
2980
2981 chip = exynos5_gpios_4;
2982 nr_chips = ARRAY_SIZE(exynos5_gpios_4);
2983
2984 for (i = 0; i < nr_chips; i++, chip++) {
2985 if (!chip->config) {
2986 chip->config = &exynos_gpio_cfg;
2987 chip->group = group++;
2988 }
2989 exynos_gpiolib_attach_ofnode(chip,
2990 EXYNOS5_PA_GPIO4, i * 0x20);
2991 }
2992 samsung_gpiolib_add_4bit_chips(exynos5_gpios_4,
2993 nr_chips, gpio_base4);
2994 return;
2995
2996 err_ioremap4:
2997 iounmap(gpio_base3);
2998 err_ioremap3:
2999 iounmap(gpio_base2);
3000 err_ioremap2:
3001 iounmap(gpio_base1);
3002 err_ioremap1:
3003 return;
3004
3005 #endif /* CONFIG_SOC_EXYNOS5250 */
3006 }
3007
3008 /* TODO: cleanup soc_is_* */
3009 static __init int samsung_gpiolib_init(void)
3010 {
3011 struct samsung_gpio_chip *chip;
3012 int i, nr_chips;
3013 int group = 0;
3014
3015 #if defined(CONFIG_PINCTRL_EXYNOS) || defined(CONFIG_PINCTRL_EXYNOS5440)
3016 /*
3017 * This gpio driver includes support for device tree support and there
3018 * are platforms using it. In order to maintain compatibility with those
3019 * platforms, and to allow non-dt Exynos4210 platforms to use this
3020 * gpiolib support, a check is added to find out if there is a active
3021 * pin-controller driver support available. If it is available, this
3022 * gpiolib support is ignored and the gpiolib support available in
3023 * pin-controller driver is used. This is a temporary check and will go
3024 * away when all of the Exynos4210 platforms have switched to using
3025 * device tree and the pin-ctrl driver.
3026 */
3027 struct device_node *pctrl_np;
3028 static const struct of_device_id exynos_pinctrl_ids[] = {
3029 { .compatible = "samsung,exynos4210-pinctrl", },
3030 { .compatible = "samsung,exynos4x12-pinctrl", },
3031 { .compatible = "samsung,exynos5250-pinctrl", },
3032 { .compatible = "samsung,exynos5440-pinctrl", },
3033 { }
3034 };
3035 for_each_matching_node(pctrl_np, exynos_pinctrl_ids)
3036 if (pctrl_np && of_device_is_available(pctrl_np))
3037 return -ENODEV;
3038 #endif
3039
3040 samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
3041
3042 if (soc_is_s3c24xx()) {
3043 s3c24xx_gpiolib_add_chips(s3c24xx_gpios,
3044 ARRAY_SIZE(s3c24xx_gpios), S3C24XX_VA_GPIO);
3045 } else if (soc_is_s3c64xx()) {
3046 samsung_gpiolib_add_2bit_chips(s3c64xx_gpios_2bit,
3047 ARRAY_SIZE(s3c64xx_gpios_2bit),
3048 S3C64XX_VA_GPIO + 0xE0, 0x20);
3049 samsung_gpiolib_add_4bit_chips(s3c64xx_gpios_4bit,
3050 ARRAY_SIZE(s3c64xx_gpios_4bit),
3051 S3C64XX_VA_GPIO);
3052 samsung_gpiolib_add_4bit2_chips(s3c64xx_gpios_4bit2,
3053 ARRAY_SIZE(s3c64xx_gpios_4bit2));
3054 } else if (soc_is_s5p6440()) {
3055 samsung_gpiolib_add_2bit_chips(s5p6440_gpios_2bit,
3056 ARRAY_SIZE(s5p6440_gpios_2bit), NULL, 0x0);
3057 samsung_gpiolib_add_4bit_chips(s5p6440_gpios_4bit,
3058 ARRAY_SIZE(s5p6440_gpios_4bit), S5P_VA_GPIO);
3059 samsung_gpiolib_add_4bit2_chips(s5p6440_gpios_4bit2,
3060 ARRAY_SIZE(s5p6440_gpios_4bit2));
3061 s5p64x0_gpiolib_add_rbank(s5p6440_gpios_rbank,
3062 ARRAY_SIZE(s5p6440_gpios_rbank));
3063 } else if (soc_is_s5p6450()) {
3064 samsung_gpiolib_add_2bit_chips(s5p6450_gpios_2bit,
3065 ARRAY_SIZE(s5p6450_gpios_2bit), NULL, 0x0);
3066 samsung_gpiolib_add_4bit_chips(s5p6450_gpios_4bit,
3067 ARRAY_SIZE(s5p6450_gpios_4bit), S5P_VA_GPIO);
3068 samsung_gpiolib_add_4bit2_chips(s5p6450_gpios_4bit2,
3069 ARRAY_SIZE(s5p6450_gpios_4bit2));
3070 s5p64x0_gpiolib_add_rbank(s5p6450_gpios_rbank,
3071 ARRAY_SIZE(s5p6450_gpios_rbank));
3072 } else if (soc_is_s5pc100()) {
3073 group = 0;
3074 chip = s5pc100_gpios_4bit;
3075 nr_chips = ARRAY_SIZE(s5pc100_gpios_4bit);
3076
3077 for (i = 0; i < nr_chips; i++, chip++) {
3078 if (!chip->config) {
3079 chip->config = &samsung_gpio_cfgs[3];
3080 chip->group = group++;
3081 }
3082 }
3083 samsung_gpiolib_add_4bit_chips(s5pc100_gpios_4bit, nr_chips, S5P_VA_GPIO);
3084 #if defined(CONFIG_CPU_S5PC100) && defined(CONFIG_S5P_GPIO_INT)
3085 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
3086 #endif
3087 } else if (soc_is_s5pv210()) {
3088 group = 0;
3089 chip = s5pv210_gpios_4bit;
3090 nr_chips = ARRAY_SIZE(s5pv210_gpios_4bit);
3091
3092 for (i = 0; i < nr_chips; i++, chip++) {
3093 if (!chip->config) {
3094 chip->config = &samsung_gpio_cfgs[3];
3095 chip->group = group++;
3096 }
3097 }
3098 samsung_gpiolib_add_4bit_chips(s5pv210_gpios_4bit, nr_chips, S5P_VA_GPIO);
3099 #if defined(CONFIG_CPU_S5PV210) && defined(CONFIG_S5P_GPIO_INT)
3100 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
3101 #endif
3102 } else if (soc_is_exynos4210()) {
3103 exynos4_gpiolib_init();
3104 } else if (soc_is_exynos5250()) {
3105 exynos5_gpiolib_init();
3106 } else {
3107 WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n");
3108 return -ENODEV;
3109 }
3110
3111 return 0;
3112 }
3113 core_initcall(samsung_gpiolib_init);
3114
3115 int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
3116 {
3117 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3118 unsigned long flags;
3119 int offset;
3120 int ret;
3121
3122 if (!chip)
3123 return -EINVAL;
3124
3125 offset = pin - chip->chip.base;
3126
3127 samsung_gpio_lock(chip, flags);
3128 ret = samsung_gpio_do_setcfg(chip, offset, config);
3129 samsung_gpio_unlock(chip, flags);
3130
3131 return ret;
3132 }
3133 EXPORT_SYMBOL(s3c_gpio_cfgpin);
3134
3135 int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr,
3136 unsigned int cfg)
3137 {
3138 int ret;
3139
3140 for (; nr > 0; nr--, start++) {
3141 ret = s3c_gpio_cfgpin(start, cfg);
3142 if (ret != 0)
3143 return ret;
3144 }
3145
3146 return 0;
3147 }
3148 EXPORT_SYMBOL_GPL(s3c_gpio_cfgpin_range);
3149
3150 int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr,
3151 unsigned int cfg, samsung_gpio_pull_t pull)
3152 {
3153 int ret;
3154
3155 for (; nr > 0; nr--, start++) {
3156 s3c_gpio_setpull(start, pull);
3157 ret = s3c_gpio_cfgpin(start, cfg);
3158 if (ret != 0)
3159 return ret;
3160 }
3161
3162 return 0;
3163 }
3164 EXPORT_SYMBOL_GPL(s3c_gpio_cfgall_range);
3165
3166 unsigned s3c_gpio_getcfg(unsigned int pin)
3167 {
3168 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3169 unsigned long flags;
3170 unsigned ret = 0;
3171 int offset;
3172
3173 if (chip) {
3174 offset = pin - chip->chip.base;
3175
3176 samsung_gpio_lock(chip, flags);
3177 ret = samsung_gpio_do_getcfg(chip, offset);
3178 samsung_gpio_unlock(chip, flags);
3179 }
3180
3181 return ret;
3182 }
3183 EXPORT_SYMBOL(s3c_gpio_getcfg);
3184
3185 int s3c_gpio_setpull(unsigned int pin, samsung_gpio_pull_t pull)
3186 {
3187 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3188 unsigned long flags;
3189 int offset, ret;
3190
3191 if (!chip)
3192 return -EINVAL;
3193
3194 offset = pin - chip->chip.base;
3195
3196 samsung_gpio_lock(chip, flags);
3197 ret = samsung_gpio_do_setpull(chip, offset, pull);
3198 samsung_gpio_unlock(chip, flags);
3199
3200 return ret;
3201 }
3202 EXPORT_SYMBOL(s3c_gpio_setpull);
3203
3204 samsung_gpio_pull_t s3c_gpio_getpull(unsigned int pin)
3205 {
3206 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3207 unsigned long flags;
3208 int offset;
3209 u32 pup = 0;
3210
3211 if (chip) {
3212 offset = pin - chip->chip.base;
3213
3214 samsung_gpio_lock(chip, flags);
3215 pup = samsung_gpio_do_getpull(chip, offset);
3216 samsung_gpio_unlock(chip, flags);
3217 }
3218
3219 return (__force samsung_gpio_pull_t)pup;
3220 }
3221 EXPORT_SYMBOL(s3c_gpio_getpull);
3222
3223 #ifdef CONFIG_S5P_GPIO_DRVSTR
3224 s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
3225 {
3226 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3227 unsigned int off;
3228 void __iomem *reg;
3229 int shift;
3230 u32 drvstr;
3231
3232 if (!chip)
3233 return -EINVAL;
3234
3235 off = pin - chip->chip.base;
3236 shift = off * 2;
3237 reg = chip->base + 0x0C;
3238
3239 drvstr = __raw_readl(reg);
3240 drvstr = drvstr >> shift;
3241 drvstr &= 0x3;
3242
3243 return (__force s5p_gpio_drvstr_t)drvstr;
3244 }
3245 EXPORT_SYMBOL(s5p_gpio_get_drvstr);
3246
3247 int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr)
3248 {
3249 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
3250 unsigned int off;
3251 void __iomem *reg;
3252 int shift;
3253 u32 tmp;
3254
3255 if (!chip)
3256 return -EINVAL;
3257
3258 off = pin - chip->chip.base;
3259 shift = off * 2;
3260 reg = chip->base + 0x0C;
3261
3262 tmp = __raw_readl(reg);
3263 tmp &= ~(0x3 << shift);
3264 tmp |= drvstr << shift;
3265
3266 __raw_writel(tmp, reg);
3267
3268 return 0;
3269 }
3270 EXPORT_SYMBOL(s5p_gpio_set_drvstr);
3271 #endif /* CONFIG_S5P_GPIO_DRVSTR */
3272
3273 #ifdef CONFIG_PLAT_S3C24XX
3274 unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change)
3275 {
3276 unsigned long flags;
3277 unsigned long misccr;
3278
3279 local_irq_save(flags);
3280 misccr = __raw_readl(S3C24XX_MISCCR);
3281 misccr &= ~clear;
3282 misccr ^= change;
3283 __raw_writel(misccr, S3C24XX_MISCCR);
3284 local_irq_restore(flags);
3285
3286 return misccr;
3287 }
3288 EXPORT_SYMBOL(s3c2410_modify_misccr);
3289 #endif
Linux with added FPC-III support