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gpio/samsung: Complain loudly if we don't know the SoC
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / gpio / gpio-samsung.c
blob866251852719c2723868eefd94443f362c952210
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/sysdev.h>
26 #include <linux/ioport.h>
27
28 #include <asm/irq.h>
29
30 #include <mach/hardware.h>
31 #include <mach/map.h>
32 #include <mach/regs-clock.h>
33 #include <mach/regs-gpio.h>
34
35 #include <plat/cpu.h>
36 #include <plat/gpio-core.h>
37 #include <plat/gpio-cfg.h>
38 #include <plat/gpio-cfg-helpers.h>
39 #include <plat/gpio-fns.h>
40 #include <plat/pm.h>
41
42 #ifndef DEBUG_GPIO
43 #define gpio_dbg(x...) do { } while (0)
44 #else
45 #define gpio_dbg(x...) printk(KERN_DEBUG x)
46 #endif
47
48 int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip,
49 unsigned int off, samsung_gpio_pull_t pull)
50 {
51 void __iomem *reg = chip->base + 0x08;
52 int shift = off * 2;
53 u32 pup;
54
55 pup = __raw_readl(reg);
56 pup &= ~(3 << shift);
57 pup |= pull << shift;
58 __raw_writel(pup, reg);
59
60 return 0;
61 }
62
63 samsung_gpio_pull_t samsung_gpio_getpull_updown(struct samsung_gpio_chip *chip,
64 unsigned int off)
65 {
66 void __iomem *reg = chip->base + 0x08;
67 int shift = off * 2;
68 u32 pup = __raw_readl(reg);
69
70 pup >>= shift;
71 pup &= 0x3;
72
73 return (__force samsung_gpio_pull_t)pup;
74 }
75
76 int s3c2443_gpio_setpull(struct samsung_gpio_chip *chip,
77 unsigned int off, samsung_gpio_pull_t pull)
78 {
79 switch (pull) {
80 case S3C_GPIO_PULL_NONE:
81 pull = 0x01;
82 break;
83 case S3C_GPIO_PULL_UP:
84 pull = 0x00;
85 break;
86 case S3C_GPIO_PULL_DOWN:
87 pull = 0x02;
88 break;
89 }
90 return samsung_gpio_setpull_updown(chip, off, pull);
91 }
92
93 samsung_gpio_pull_t s3c2443_gpio_getpull(struct samsung_gpio_chip *chip,
94 unsigned int off)
95 {
96 samsung_gpio_pull_t pull;
97
98 pull = samsung_gpio_getpull_updown(chip, off);
99
100 switch (pull) {
101 case 0x00:
102 pull = S3C_GPIO_PULL_UP;
103 break;
104 case 0x01:
105 case 0x03:
106 pull = S3C_GPIO_PULL_NONE;
107 break;
108 case 0x02:
109 pull = S3C_GPIO_PULL_DOWN;
110 break;
111 }
112
113 return pull;
114 }
115
116 static int s3c24xx_gpio_setpull_1(struct samsung_gpio_chip *chip,
117 unsigned int off, samsung_gpio_pull_t pull,
118 samsung_gpio_pull_t updown)
119 {
120 void __iomem *reg = chip->base + 0x08;
121 u32 pup = __raw_readl(reg);
122
123 if (pull == updown)
124 pup &= ~(1 << off);
125 else if (pull == S3C_GPIO_PULL_NONE)
126 pup |= (1 << off);
127 else
128 return -EINVAL;
129
130 __raw_writel(pup, reg);
131 return 0;
132 }
133
134 static samsung_gpio_pull_t s3c24xx_gpio_getpull_1(struct samsung_gpio_chip *chip,
135 unsigned int off,
136 samsung_gpio_pull_t updown)
137 {
138 void __iomem *reg = chip->base + 0x08;
139 u32 pup = __raw_readl(reg);
140
141 pup &= (1 << off);
142 return pup ? S3C_GPIO_PULL_NONE : updown;
143 }
144
145 samsung_gpio_pull_t s3c24xx_gpio_getpull_1up(struct samsung_gpio_chip *chip,
146 unsigned int off)
147 {
148 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_UP);
149 }
150
151 int s3c24xx_gpio_setpull_1up(struct samsung_gpio_chip *chip,
152 unsigned int off, samsung_gpio_pull_t pull)
153 {
154 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_UP);
155 }
156
157 samsung_gpio_pull_t s3c24xx_gpio_getpull_1down(struct samsung_gpio_chip *chip,
158 unsigned int off)
159 {
160 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_DOWN);
161 }
162
163 int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip,
164 unsigned int off, samsung_gpio_pull_t pull)
165 {
166 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN);
167 }
168
169 static int exynos4_gpio_setpull(struct samsung_gpio_chip *chip,
170 unsigned int off, samsung_gpio_pull_t pull)
171 {
172 if (pull == S3C_GPIO_PULL_UP)
173 pull = 3;
174
175 return samsung_gpio_setpull_updown(chip, off, pull);
176 }
177
178 static samsung_gpio_pull_t exynos4_gpio_getpull(struct samsung_gpio_chip *chip,
179 unsigned int off)
180 {
181 samsung_gpio_pull_t pull;
182
183 pull = samsung_gpio_getpull_updown(chip, off);
184
185 if (pull == 3)
186 pull = S3C_GPIO_PULL_UP;
187
188 return pull;
189 }
190
191 /*
192 * samsung_gpio_setcfg_2bit - Samsung 2bit style GPIO configuration.
193 * @chip: The gpio chip that is being configured.
194 * @off: The offset for the GPIO being configured.
195 * @cfg: The configuration value to set.
196 *
197 * This helper deal with the GPIO cases where the control register
198 * has two bits of configuration per gpio, which have the following
199 * functions:
200 * 00 = input
201 * 01 = output
202 * 1x = special function
203 */
204
205 static int samsung_gpio_setcfg_2bit(struct samsung_gpio_chip *chip,
206 unsigned int off, unsigned int cfg)
207 {
208 void __iomem *reg = chip->base;
209 unsigned int shift = off * 2;
210 u32 con;
211
212 if (samsung_gpio_is_cfg_special(cfg)) {
213 cfg &= 0xf;
214 if (cfg > 3)
215 return -EINVAL;
216
217 cfg <<= shift;
218 }
219
220 con = __raw_readl(reg);
221 con &= ~(0x3 << shift);
222 con |= cfg;
223 __raw_writel(con, reg);
224
225 return 0;
226 }
227
228 /*
229 * samsung_gpio_getcfg_2bit - Samsung 2bit style GPIO configuration read.
230 * @chip: The gpio chip that is being configured.
231 * @off: The offset for the GPIO being configured.
232 *
233 * The reverse of samsung_gpio_setcfg_2bit(). Will return a value whicg
234 * could be directly passed back to samsung_gpio_setcfg_2bit(), from the
235 * S3C_GPIO_SPECIAL() macro.
236 */
237
238 static unsigned int samsung_gpio_getcfg_2bit(struct samsung_gpio_chip *chip,
239 unsigned int off)
240 {
241 u32 con;
242
243 con = __raw_readl(chip->base);
244 con >>= off * 2;
245 con &= 3;
246
247 /* this conversion works for IN and OUT as well as special mode */
248 return S3C_GPIO_SPECIAL(con);
249 }
250
251 /*
252 * samsung_gpio_setcfg_4bit - Samsung 4bit single register GPIO config.
253 * @chip: The gpio chip that is being configured.
254 * @off: The offset for the GPIO being configured.
255 * @cfg: The configuration value to set.
256 *
257 * This helper deal with the GPIO cases where the control register has 4 bits
258 * of control per GPIO, generally in the form of:
259 * 0000 = Input
260 * 0001 = Output
261 * others = Special functions (dependent on bank)
262 *
263 * Note, since the code to deal with the case where there are two control
264 * registers instead of one, we do not have a separate set of functions for
265 * each case.
266 */
267
268 static int samsung_gpio_setcfg_4bit(struct samsung_gpio_chip *chip,
269 unsigned int off, unsigned int cfg)
270 {
271 void __iomem *reg = chip->base;
272 unsigned int shift = (off & 7) * 4;
273 u32 con;
274
275 if (off < 8 && chip->chip.ngpio > 8)
276 reg -= 4;
277
278 if (samsung_gpio_is_cfg_special(cfg)) {
279 cfg &= 0xf;
280 cfg <<= shift;
281 }
282
283 con = __raw_readl(reg);
284 con &= ~(0xf << shift);
285 con |= cfg;
286 __raw_writel(con, reg);
287
288 return 0;
289 }
290
291 /*
292 * samsung_gpio_getcfg_4bit - Samsung 4bit single register GPIO config read.
293 * @chip: The gpio chip that is being configured.
294 * @off: The offset for the GPIO being configured.
295 *
296 * The reverse of samsung_gpio_setcfg_4bit(), turning a gpio configuration
297 * register setting into a value the software can use, such as could be passed
298 * to samsung_gpio_setcfg_4bit().
299 *
300 * @sa samsung_gpio_getcfg_2bit
301 */
302
303 static unsigned samsung_gpio_getcfg_4bit(struct samsung_gpio_chip *chip,
304 unsigned int off)
305 {
306 void __iomem *reg = chip->base;
307 unsigned int shift = (off & 7) * 4;
308 u32 con;
309
310 if (off < 8 && chip->chip.ngpio > 8)
311 reg -= 4;
312
313 con = __raw_readl(reg);
314 con >>= shift;
315 con &= 0xf;
316
317 /* this conversion works for IN and OUT as well as special mode */
318 return S3C_GPIO_SPECIAL(con);
319 }
320
321 #ifdef CONFIG_PLAT_S3C24XX
322 /*
323 * s3c24xx_gpio_setcfg_abank - S3C24XX style GPIO configuration (Bank A)
324 * @chip: The gpio chip that is being configured.
325 * @off: The offset for the GPIO being configured.
326 * @cfg: The configuration value to set.
327 *
328 * This helper deal with the GPIO cases where the control register
329 * has one bit of configuration for the gpio, where setting the bit
330 * means the pin is in special function mode and unset means output.
331 */
332
333 static int s3c24xx_gpio_setcfg_abank(struct samsung_gpio_chip *chip,
334 unsigned int off, unsigned int cfg)
335 {
336 void __iomem *reg = chip->base;
337 unsigned int shift = off;
338 u32 con;
339
340 if (samsung_gpio_is_cfg_special(cfg)) {
341 cfg &= 0xf;
342
343 /* Map output to 0, and SFN2 to 1 */
344 cfg -= 1;
345 if (cfg > 1)
346 return -EINVAL;
347
348 cfg <<= shift;
349 }
350
351 con = __raw_readl(reg);
352 con &= ~(0x1 << shift);
353 con |= cfg;
354 __raw_writel(con, reg);
355
356 return 0;
357 }
358
359 /*
360 * s3c24xx_gpio_getcfg_abank - S3C24XX style GPIO configuration read (Bank A)
361 * @chip: The gpio chip that is being configured.
362 * @off: The offset for the GPIO being configured.
363 *
364 * The reverse of s3c24xx_gpio_setcfg_abank() turning an GPIO into a usable
365 * GPIO configuration value.
366 *
367 * @sa samsung_gpio_getcfg_2bit
368 * @sa samsung_gpio_getcfg_4bit
369 */
370
371 static unsigned s3c24xx_gpio_getcfg_abank(struct samsung_gpio_chip *chip,
372 unsigned int off)
373 {
374 u32 con;
375
376 con = __raw_readl(chip->base);
377 con >>= off;
378 con &= 1;
379 con++;
380
381 return S3C_GPIO_SFN(con);
382 }
383 #endif
384
385 #if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
386 static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip,
387 unsigned int off, unsigned int cfg)
388 {
389 void __iomem *reg = chip->base;
390 unsigned int shift;
391 u32 con;
392
393 switch (off) {
394 case 0:
395 case 1:
396 case 2:
397 case 3:
398 case 4:
399 case 5:
400 shift = (off & 7) * 4;
401 reg -= 4;
402 break;
403 case 6:
404 shift = ((off + 1) & 7) * 4;
405 reg -= 4;
406 default:
407 shift = ((off + 1) & 7) * 4;
408 break;
409 }
410
411 if (samsung_gpio_is_cfg_special(cfg)) {
412 cfg &= 0xf;
413 cfg <<= shift;
414 }
415
416 con = __raw_readl(reg);
417 con &= ~(0xf << shift);
418 con |= cfg;
419 __raw_writel(con, reg);
420
421 return 0;
422 }
423 #endif
424
425 static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg *chipcfg,
426 int nr_chips)
427 {
428 for (; nr_chips > 0; nr_chips--, chipcfg++) {
429 if (!chipcfg->set_config)
430 chipcfg->set_config = samsung_gpio_setcfg_4bit;
431 if (!chipcfg->get_config)
432 chipcfg->get_config = samsung_gpio_getcfg_4bit;
433 if (!chipcfg->set_pull)
434 chipcfg->set_pull = samsung_gpio_setpull_updown;
435 if (!chipcfg->get_pull)
436 chipcfg->get_pull = samsung_gpio_getpull_updown;
437 }
438 }
439
440 struct samsung_gpio_cfg s3c24xx_gpiocfg_default = {
441 .set_config = samsung_gpio_setcfg_2bit,
442 .get_config = samsung_gpio_getcfg_2bit,
443 };
444
445 #ifdef CONFIG_PLAT_S3C24XX
446 static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
447 .set_config = s3c24xx_gpio_setcfg_abank,
448 .get_config = s3c24xx_gpio_getcfg_abank,
449 };
450 #endif
451
452 static struct samsung_gpio_cfg exynos4_gpio_cfg = {
453 .set_pull = exynos4_gpio_setpull,
454 .get_pull = exynos4_gpio_getpull,
455 .set_config = samsung_gpio_setcfg_4bit,
456 .get_config = samsung_gpio_getcfg_4bit,
457 };
458
459 #if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
460 static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
461 .cfg_eint = 0x3,
462 .set_config = s5p64x0_gpio_setcfg_rbank,
463 .get_config = samsung_gpio_getcfg_4bit,
464 .set_pull = samsung_gpio_setpull_updown,
465 .get_pull = samsung_gpio_getpull_updown,
466 };
467 #endif
468
469 static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
470 {
471 .cfg_eint = 0x0,
472 }, {
473 .cfg_eint = 0x3,
474 }, {
475 .cfg_eint = 0x7,
476 }, {
477 .cfg_eint = 0xF,
478 }, {
479 .cfg_eint = 0x0,
480 .set_config = samsung_gpio_setcfg_2bit,
481 .get_config = samsung_gpio_getcfg_2bit,
482 }, {
483 .cfg_eint = 0x2,
484 .set_config = samsung_gpio_setcfg_2bit,
485 .get_config = samsung_gpio_getcfg_2bit,
486 }, {
487 .cfg_eint = 0x3,
488 .set_config = samsung_gpio_setcfg_2bit,
489 .get_config = samsung_gpio_getcfg_2bit,
490 }, {
491 .set_config = samsung_gpio_setcfg_2bit,
492 .get_config = samsung_gpio_getcfg_2bit,
493 }, {
494 .set_pull = exynos4_gpio_setpull,
495 .get_pull = exynos4_gpio_getpull,
496 }, {
497 .cfg_eint = 0x3,
498 .set_pull = exynos4_gpio_setpull,
499 .get_pull = exynos4_gpio_getpull,
500 }
501 };
502
503 /*
504 * Default routines for controlling GPIO, based on the original S3C24XX
505 * GPIO functions which deal with the case where each gpio bank of the
506 * chip is as following:
507 *
508 * base + 0x00: Control register, 2 bits per gpio
509 * gpio n: 2 bits starting at (2*n)
510 * 00 = input, 01 = output, others mean special-function
511 * base + 0x04: Data register, 1 bit per gpio
512 * bit n: data bit n
513 */
514
515 static int samsung_gpiolib_2bit_input(struct gpio_chip *chip, unsigned offset)
516 {
517 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
518 void __iomem *base = ourchip->base;
519 unsigned long flags;
520 unsigned long con;
521
522 samsung_gpio_lock(ourchip, flags);
523
524 con = __raw_readl(base + 0x00);
525 con &= ~(3 << (offset * 2));
526
527 __raw_writel(con, base + 0x00);
528
529 samsung_gpio_unlock(ourchip, flags);
530 return 0;
531 }
532
533 static int samsung_gpiolib_2bit_output(struct gpio_chip *chip,
534 unsigned offset, int value)
535 {
536 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
537 void __iomem *base = ourchip->base;
538 unsigned long flags;
539 unsigned long dat;
540 unsigned long con;
541
542 samsung_gpio_lock(ourchip, flags);
543
544 dat = __raw_readl(base + 0x04);
545 dat &= ~(1 << offset);
546 if (value)
547 dat |= 1 << offset;
548 __raw_writel(dat, base + 0x04);
549
550 con = __raw_readl(base + 0x00);
551 con &= ~(3 << (offset * 2));
552 con |= 1 << (offset * 2);
553
554 __raw_writel(con, base + 0x00);
555 __raw_writel(dat, base + 0x04);
556
557 samsung_gpio_unlock(ourchip, flags);
558 return 0;
559 }
560
561 /*
562 * The samsung_gpiolib_4bit routines are to control the gpio banks where
563 * the gpio configuration register (GPxCON) has 4 bits per GPIO, as the
564 * following example:
565 *
566 * base + 0x00: Control register, 4 bits per gpio
567 * gpio n: 4 bits starting at (4*n)
568 * 0000 = input, 0001 = output, others mean special-function
569 * base + 0x04: Data register, 1 bit per gpio
570 * bit n: data bit n
571 *
572 * Note, since the data register is one bit per gpio and is at base + 0x4
573 * we can use samsung_gpiolib_get and samsung_gpiolib_set to change the
574 * state of the output.
575 */
576
577 static int samsung_gpiolib_4bit_input(struct gpio_chip *chip,
578 unsigned int offset)
579 {
580 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
581 void __iomem *base = ourchip->base;
582 unsigned long con;
583
584 con = __raw_readl(base + GPIOCON_OFF);
585 con &= ~(0xf << con_4bit_shift(offset));
586 __raw_writel(con, base + GPIOCON_OFF);
587
588 gpio_dbg("%s: %p: CON now %08lx\n", __func__, base, con);
589
590 return 0;
591 }
592
593 static int samsung_gpiolib_4bit_output(struct gpio_chip *chip,
594 unsigned int offset, int value)
595 {
596 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
597 void __iomem *base = ourchip->base;
598 unsigned long con;
599 unsigned long dat;
600
601 con = __raw_readl(base + GPIOCON_OFF);
602 con &= ~(0xf << con_4bit_shift(offset));
603 con |= 0x1 << con_4bit_shift(offset);
604
605 dat = __raw_readl(base + GPIODAT_OFF);
606
607 if (value)
608 dat |= 1 << offset;
609 else
610 dat &= ~(1 << offset);
611
612 __raw_writel(dat, base + GPIODAT_OFF);
613 __raw_writel(con, base + GPIOCON_OFF);
614 __raw_writel(dat, base + GPIODAT_OFF);
615
616 gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
617
618 return 0;
619 }
620
621 /*
622 * The next set of routines are for the case where the GPIO configuration
623 * registers are 4 bits per GPIO but there is more than one register (the
624 * bank has more than 8 GPIOs.
625 *
626 * This case is the similar to the 4 bit case, but the registers are as
627 * follows:
628 *
629 * base + 0x00: Control register, 4 bits per gpio (lower 8 GPIOs)
630 * gpio n: 4 bits starting at (4*n)
631 * 0000 = input, 0001 = output, others mean special-function
632 * base + 0x04: Control register, 4 bits per gpio (up to 8 additions GPIOs)
633 * gpio n: 4 bits starting at (4*n)
634 * 0000 = input, 0001 = output, others mean special-function
635 * base + 0x08: Data register, 1 bit per gpio
636 * bit n: data bit n
637 *
638 * To allow us to use the samsung_gpiolib_get and samsung_gpiolib_set
639 * routines we store the 'base + 0x4' address so that these routines see
640 * the data register at ourchip->base + 0x04.
641 */
642
643 static int samsung_gpiolib_4bit2_input(struct gpio_chip *chip,
644 unsigned int offset)
645 {
646 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
647 void __iomem *base = ourchip->base;
648 void __iomem *regcon = base;
649 unsigned long con;
650
651 if (offset > 7)
652 offset -= 8;
653 else
654 regcon -= 4;
655
656 con = __raw_readl(regcon);
657 con &= ~(0xf << con_4bit_shift(offset));
658 __raw_writel(con, regcon);
659
660 gpio_dbg("%s: %p: CON %08lx\n", __func__, base, con);
661
662 return 0;
663 }
664
665 static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip,
666 unsigned int offset, int value)
667 {
668 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
669 void __iomem *base = ourchip->base;
670 void __iomem *regcon = base;
671 unsigned long con;
672 unsigned long dat;
673 unsigned con_offset = offset;
674
675 if (con_offset > 7)
676 con_offset -= 8;
677 else
678 regcon -= 4;
679
680 con = __raw_readl(regcon);
681 con &= ~(0xf << con_4bit_shift(con_offset));
682 con |= 0x1 << con_4bit_shift(con_offset);
683
684 dat = __raw_readl(base + GPIODAT_OFF);
685
686 if (value)
687 dat |= 1 << offset;
688 else
689 dat &= ~(1 << offset);
690
691 __raw_writel(dat, base + GPIODAT_OFF);
692 __raw_writel(con, regcon);
693 __raw_writel(dat, base + GPIODAT_OFF);
694
695 gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
696
697 return 0;
698 }
699
700 #ifdef CONFIG_PLAT_S3C24XX
701 /* The next set of routines are for the case of s3c24xx bank a */
702
703 static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
704 {
705 return -EINVAL;
706 }
707
708 static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
709 unsigned offset, int value)
710 {
711 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
712 void __iomem *base = ourchip->base;
713 unsigned long flags;
714 unsigned long dat;
715 unsigned long con;
716
717 local_irq_save(flags);
718
719 con = __raw_readl(base + 0x00);
720 dat = __raw_readl(base + 0x04);
721
722 dat &= ~(1 << offset);
723 if (value)
724 dat |= 1 << offset;
725
726 __raw_writel(dat, base + 0x04);
727
728 con &= ~(1 << offset);
729
730 __raw_writel(con, base + 0x00);
731 __raw_writel(dat, base + 0x04);
732
733 local_irq_restore(flags);
734 return 0;
735 }
736 #endif
737
738 /* The next set of routines are for the case of s5p64x0 bank r */
739
740 static int s5p64x0_gpiolib_rbank_input(struct gpio_chip *chip,
741 unsigned int offset)
742 {
743 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
744 void __iomem *base = ourchip->base;
745 void __iomem *regcon = base;
746 unsigned long con;
747 unsigned long flags;
748
749 switch (offset) {
750 case 6:
751 offset += 1;
752 case 0:
753 case 1:
754 case 2:
755 case 3:
756 case 4:
757 case 5:
758 regcon -= 4;
759 break;
760 default:
761 offset -= 7;
762 break;
763 }
764
765 samsung_gpio_lock(ourchip, flags);
766
767 con = __raw_readl(regcon);
768 con &= ~(0xf << con_4bit_shift(offset));
769 __raw_writel(con, regcon);
770
771 samsung_gpio_unlock(ourchip, flags);
772
773 return 0;
774 }
775
776 static int s5p64x0_gpiolib_rbank_output(struct gpio_chip *chip,
777 unsigned int offset, int value)
778 {
779 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
780 void __iomem *base = ourchip->base;
781 void __iomem *regcon = base;
782 unsigned long con;
783 unsigned long dat;
784 unsigned long flags;
785 unsigned con_offset = offset;
786
787 switch (con_offset) {
788 case 6:
789 con_offset += 1;
790 case 0:
791 case 1:
792 case 2:
793 case 3:
794 case 4:
795 case 5:
796 regcon -= 4;
797 break;
798 default:
799 con_offset -= 7;
800 break;
801 }
802
803 samsung_gpio_lock(ourchip, flags);
804
805 con = __raw_readl(regcon);
806 con &= ~(0xf << con_4bit_shift(con_offset));
807 con |= 0x1 << con_4bit_shift(con_offset);
808
809 dat = __raw_readl(base + GPIODAT_OFF);
810 if (value)
811 dat |= 1 << offset;
812 else
813 dat &= ~(1 << offset);
814
815 __raw_writel(con, regcon);
816 __raw_writel(dat, base + GPIODAT_OFF);
817
818 samsung_gpio_unlock(ourchip, flags);
819
820 return 0;
821 }
822
823 static void samsung_gpiolib_set(struct gpio_chip *chip,
824 unsigned offset, int value)
825 {
826 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
827 void __iomem *base = ourchip->base;
828 unsigned long flags;
829 unsigned long dat;
830
831 samsung_gpio_lock(ourchip, flags);
832
833 dat = __raw_readl(base + 0x04);
834 dat &= ~(1 << offset);
835 if (value)
836 dat |= 1 << offset;
837 __raw_writel(dat, base + 0x04);
838
839 samsung_gpio_unlock(ourchip, flags);
840 }
841
842 static int samsung_gpiolib_get(struct gpio_chip *chip, unsigned offset)
843 {
844 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
845 unsigned long val;
846
847 val = __raw_readl(ourchip->base + 0x04);
848 val >>= offset;
849 val &= 1;
850
851 return val;
852 }
853
854 /*
855 * CONFIG_S3C_GPIO_TRACK enables the tracking of the s3c specific gpios
856 * for use with the configuration calls, and other parts of the s3c gpiolib
857 * support code.
858 *
859 * Not all s3c support code will need this, as some configurations of cpu
860 * may only support one or two different configuration options and have an
861 * easy gpio to samsung_gpio_chip mapping function. If this is the case, then
862 * the machine support file should provide its own samsung_gpiolib_getchip()
863 * and any other necessary functions.
864 */
865
866 #ifdef CONFIG_S3C_GPIO_TRACK
867 struct samsung_gpio_chip *s3c_gpios[S3C_GPIO_END];
868
869 static __init void s3c_gpiolib_track(struct samsung_gpio_chip *chip)
870 {
871 unsigned int gpn;
872 int i;
873
874 gpn = chip->chip.base;
875 for (i = 0; i < chip->chip.ngpio; i++, gpn++) {
876 BUG_ON(gpn >= ARRAY_SIZE(s3c_gpios));
877 s3c_gpios[gpn] = chip;
878 }
879 }
880 #endif /* CONFIG_S3C_GPIO_TRACK */
881
882 /*
883 * samsung_gpiolib_add() - add the Samsung gpio_chip.
884 * @chip: The chip to register
885 *
886 * This is a wrapper to gpiochip_add() that takes our specific gpio chip
887 * information and makes the necessary alterations for the platform and
888 * notes the information for use with the configuration systems and any
889 * other parts of the system.
890 */
891
892 static void __init samsung_gpiolib_add(struct samsung_gpio_chip *chip)
893 {
894 struct gpio_chip *gc = &chip->chip;
895 int ret;
896
897 BUG_ON(!chip->base);
898 BUG_ON(!gc->label);
899 BUG_ON(!gc->ngpio);
900
901 spin_lock_init(&chip->lock);
902
903 if (!gc->direction_input)
904 gc->direction_input = samsung_gpiolib_2bit_input;
905 if (!gc->direction_output)
906 gc->direction_output = samsung_gpiolib_2bit_output;
907 if (!gc->set)
908 gc->set = samsung_gpiolib_set;
909 if (!gc->get)
910 gc->get = samsung_gpiolib_get;
911
912 #ifdef CONFIG_PM
913 if (chip->pm != NULL) {
914 if (!chip->pm->save || !chip->pm->resume)
915 printk(KERN_ERR "gpio: %s has missing PM functions\n",
916 gc->label);
917 } else
918 printk(KERN_ERR "gpio: %s has no PM function\n", gc->label);
919 #endif
920
921 /* gpiochip_add() prints own failure message on error. */
922 ret = gpiochip_add(gc);
923 if (ret >= 0)
924 s3c_gpiolib_track(chip);
925 }
926
927 static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
928 int nr_chips, void __iomem *base)
929 {
930 int i;
931 struct gpio_chip *gc = &chip->chip;
932
933 for (i = 0 ; i < nr_chips; i++, chip++) {
934 /* skip banks not present on SoC */
935 if (chip->chip.base >= S3C_GPIO_END)
936 continue;
937
938 if (!chip->config)
939 chip->config = &s3c24xx_gpiocfg_default;
940 if (!chip->pm)
941 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
942 if ((base != NULL) && (chip->base == NULL))
943 chip->base = base + ((i) * 0x10);
944
945 if (!gc->direction_input)
946 gc->direction_input = samsung_gpiolib_2bit_input;
947 if (!gc->direction_output)
948 gc->direction_output = samsung_gpiolib_2bit_output;
949
950 samsung_gpiolib_add(chip);
951 }
952 }
953
954 static void __init samsung_gpiolib_add_2bit_chips(struct samsung_gpio_chip *chip,
955 int nr_chips, void __iomem *base,
956 unsigned int offset)
957 {
958 int i;
959
960 for (i = 0 ; i < nr_chips; i++, chip++) {
961 chip->chip.direction_input = samsung_gpiolib_2bit_input;
962 chip->chip.direction_output = samsung_gpiolib_2bit_output;
963
964 if (!chip->config)
965 chip->config = &samsung_gpio_cfgs[7];
966 if (!chip->pm)
967 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
968 if ((base != NULL) && (chip->base == NULL))
969 chip->base = base + ((i) * offset);
970
971 samsung_gpiolib_add(chip);
972 }
973 }
974
975 /*
976 * samsung_gpiolib_add_4bit_chips - 4bit single register GPIO config.
977 * @chip: The gpio chip that is being configured.
978 * @nr_chips: The no of chips (gpio ports) for the GPIO being configured.
979 *
980 * This helper deal with the GPIO cases where the control register has 4 bits
981 * of control per GPIO, generally in the form of:
982 * 0000 = Input
983 * 0001 = Output
984 * others = Special functions (dependent on bank)
985 *
986 * Note, since the code to deal with the case where there are two control
987 * registers instead of one, we do not have a separate set of function
988 * (samsung_gpiolib_add_4bit2_chips)for each case.
989 */
990
991 static void __init samsung_gpiolib_add_4bit_chips(struct samsung_gpio_chip *chip,
992 int nr_chips, void __iomem *base)
993 {
994 int i;
995
996 for (i = 0 ; i < nr_chips; i++, chip++) {
997 chip->chip.direction_input = samsung_gpiolib_4bit_input;
998 chip->chip.direction_output = samsung_gpiolib_4bit_output;
999
1000 if (!chip->config)
1001 chip->config = &samsung_gpio_cfgs[2];
1002 if (!chip->pm)
1003 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1004 if ((base != NULL) && (chip->base == NULL))
1005 chip->base = base + ((i) * 0x20);
1006
1007 samsung_gpiolib_add(chip);
1008 }
1009 }
1010
1011 static void __init samsung_gpiolib_add_4bit2_chips(struct samsung_gpio_chip *chip,
1012 int nr_chips)
1013 {
1014 for (; nr_chips > 0; nr_chips--, chip++) {
1015 chip->chip.direction_input = samsung_gpiolib_4bit2_input;
1016 chip->chip.direction_output = samsung_gpiolib_4bit2_output;
1017
1018 if (!chip->config)
1019 chip->config = &samsung_gpio_cfgs[2];
1020 if (!chip->pm)
1021 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1022
1023 samsung_gpiolib_add(chip);
1024 }
1025 }
1026
1027 static void __init s5p64x0_gpiolib_add_rbank(struct samsung_gpio_chip *chip,
1028 int nr_chips)
1029 {
1030 for (; nr_chips > 0; nr_chips--, chip++) {
1031 chip->chip.direction_input = s5p64x0_gpiolib_rbank_input;
1032 chip->chip.direction_output = s5p64x0_gpiolib_rbank_output;
1033
1034 if (!chip->pm)
1035 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1036
1037 samsung_gpiolib_add(chip);
1038 }
1039 }
1040
1041 int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset)
1042 {
1043 struct samsung_gpio_chip *samsung_chip = container_of(chip, struct samsung_gpio_chip, chip);
1044
1045 return samsung_chip->irq_base + offset;
1046 }
1047
1048 #ifdef CONFIG_PLAT_S3C24XX
1049 static int s3c24xx_gpiolib_fbank_to_irq(struct gpio_chip *chip, unsigned offset)
1050 {
1051 if (offset < 4)
1052 return IRQ_EINT0 + offset;
1053
1054 if (offset < 8)
1055 return IRQ_EINT4 + offset - 4;
1056
1057 return -EINVAL;
1058 }
1059 #endif
1060
1061 #ifdef CONFIG_PLAT_S3C64XX
1062 static int s3c64xx_gpiolib_mbank_to_irq(struct gpio_chip *chip, unsigned pin)
1063 {
1064 return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO;
1065 }
1066
1067 static int s3c64xx_gpiolib_lbank_to_irq(struct gpio_chip *chip, unsigned pin)
1068 {
1069 return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO;
1070 }
1071 #endif
1072
1073 struct samsung_gpio_chip s3c24xx_gpios[] = {
1074 #ifdef CONFIG_PLAT_S3C24XX
1075 {
1076 .config = &s3c24xx_gpiocfg_banka,
1077 .chip = {
1078 .base = S3C2410_GPA(0),
1079 .owner = THIS_MODULE,
1080 .label = "GPIOA",
1081 .ngpio = 24,
1082 .direction_input = s3c24xx_gpiolib_banka_input,
1083 .direction_output = s3c24xx_gpiolib_banka_output,
1084 },
1085 }, {
1086 .chip = {
1087 .base = S3C2410_GPB(0),
1088 .owner = THIS_MODULE,
1089 .label = "GPIOB",
1090 .ngpio = 16,
1091 },
1092 }, {
1093 .chip = {
1094 .base = S3C2410_GPC(0),
1095 .owner = THIS_MODULE,
1096 .label = "GPIOC",
1097 .ngpio = 16,
1098 },
1099 }, {
1100 .chip = {
1101 .base = S3C2410_GPD(0),
1102 .owner = THIS_MODULE,
1103 .label = "GPIOD",
1104 .ngpio = 16,
1105 },
1106 }, {
1107 .chip = {
1108 .base = S3C2410_GPE(0),
1109 .label = "GPIOE",
1110 .owner = THIS_MODULE,
1111 .ngpio = 16,
1112 },
1113 }, {
1114 .chip = {
1115 .base = S3C2410_GPF(0),
1116 .owner = THIS_MODULE,
1117 .label = "GPIOF",
1118 .ngpio = 8,
1119 .to_irq = s3c24xx_gpiolib_fbank_to_irq,
1120 },
1121 }, {
1122 .irq_base = IRQ_EINT8,
1123 .chip = {
1124 .base = S3C2410_GPG(0),
1125 .owner = THIS_MODULE,
1126 .label = "GPIOG",
1127 .ngpio = 16,
1128 .to_irq = samsung_gpiolib_to_irq,
1129 },
1130 }, {
1131 .chip = {
1132 .base = S3C2410_GPH(0),
1133 .owner = THIS_MODULE,
1134 .label = "GPIOH",
1135 .ngpio = 11,
1136 },
1137 },
1138 /* GPIOS for the S3C2443 and later devices. */
1139 {
1140 .base = S3C2440_GPJCON,
1141 .chip = {
1142 .base = S3C2410_GPJ(0),
1143 .owner = THIS_MODULE,
1144 .label = "GPIOJ",
1145 .ngpio = 16,
1146 },
1147 }, {
1148 .base = S3C2443_GPKCON,
1149 .chip = {
1150 .base = S3C2410_GPK(0),
1151 .owner = THIS_MODULE,
1152 .label = "GPIOK",
1153 .ngpio = 16,
1154 },
1155 }, {
1156 .base = S3C2443_GPLCON,
1157 .chip = {
1158 .base = S3C2410_GPL(0),
1159 .owner = THIS_MODULE,
1160 .label = "GPIOL",
1161 .ngpio = 15,
1162 },
1163 }, {
1164 .base = S3C2443_GPMCON,
1165 .chip = {
1166 .base = S3C2410_GPM(0),
1167 .owner = THIS_MODULE,
1168 .label = "GPIOM",
1169 .ngpio = 2,
1170 },
1171 },
1172 #endif
1173 };
1174
1175 /*
1176 * GPIO bank summary:
1177 *
1178 * Bank GPIOs Style SlpCon ExtInt Group
1179 * A 8 4Bit Yes 1
1180 * B 7 4Bit Yes 1
1181 * C 8 4Bit Yes 2
1182 * D 5 4Bit Yes 3
1183 * E 5 4Bit Yes None
1184 * F 16 2Bit Yes 4 [1]
1185 * G 7 4Bit Yes 5
1186 * H 10 4Bit[2] Yes 6
1187 * I 16 2Bit Yes None
1188 * J 12 2Bit Yes None
1189 * K 16 4Bit[2] No None
1190 * L 15 4Bit[2] No None
1191 * M 6 4Bit No IRQ_EINT
1192 * N 16 2Bit No IRQ_EINT
1193 * O 16 2Bit Yes 7
1194 * P 15 2Bit Yes 8
1195 * Q 9 2Bit Yes 9
1196 *
1197 * [1] BANKF pins 14,15 do not form part of the external interrupt sources
1198 * [2] BANK has two control registers, GPxCON0 and GPxCON1
1199 */
1200
1201 static struct samsung_gpio_chip s3c64xx_gpios_4bit[] = {
1202 #ifdef CONFIG_PLAT_S3C64XX
1203 {
1204 .chip = {
1205 .base = S3C64XX_GPA(0),
1206 .ngpio = S3C64XX_GPIO_A_NR,
1207 .label = "GPA",
1208 },
1209 }, {
1210 .chip = {
1211 .base = S3C64XX_GPB(0),
1212 .ngpio = S3C64XX_GPIO_B_NR,
1213 .label = "GPB",
1214 },
1215 }, {
1216 .chip = {
1217 .base = S3C64XX_GPC(0),
1218 .ngpio = S3C64XX_GPIO_C_NR,
1219 .label = "GPC",
1220 },
1221 }, {
1222 .chip = {
1223 .base = S3C64XX_GPD(0),
1224 .ngpio = S3C64XX_GPIO_D_NR,
1225 .label = "GPD",
1226 },
1227 }, {
1228 .config = &samsung_gpio_cfgs[0],
1229 .chip = {
1230 .base = S3C64XX_GPE(0),
1231 .ngpio = S3C64XX_GPIO_E_NR,
1232 .label = "GPE",
1233 },
1234 }, {
1235 .base = S3C64XX_GPG_BASE,
1236 .chip = {
1237 .base = S3C64XX_GPG(0),
1238 .ngpio = S3C64XX_GPIO_G_NR,
1239 .label = "GPG",
1240 },
1241 }, {
1242 .base = S3C64XX_GPM_BASE,
1243 .config = &samsung_gpio_cfgs[1],
1244 .chip = {
1245 .base = S3C64XX_GPM(0),
1246 .ngpio = S3C64XX_GPIO_M_NR,
1247 .label = "GPM",
1248 .to_irq = s3c64xx_gpiolib_mbank_to_irq,
1249 },
1250 },
1251 #endif
1252 };
1253
1254 static struct samsung_gpio_chip s3c64xx_gpios_4bit2[] = {
1255 #ifdef CONFIG_PLAT_S3C64XX
1256 {
1257 .base = S3C64XX_GPH_BASE + 0x4,
1258 .chip = {
1259 .base = S3C64XX_GPH(0),
1260 .ngpio = S3C64XX_GPIO_H_NR,
1261 .label = "GPH",
1262 },
1263 }, {
1264 .base = S3C64XX_GPK_BASE + 0x4,
1265 .config = &samsung_gpio_cfgs[0],
1266 .chip = {
1267 .base = S3C64XX_GPK(0),
1268 .ngpio = S3C64XX_GPIO_K_NR,
1269 .label = "GPK",
1270 },
1271 }, {
1272 .base = S3C64XX_GPL_BASE + 0x4,
1273 .config = &samsung_gpio_cfgs[1],
1274 .chip = {
1275 .base = S3C64XX_GPL(0),
1276 .ngpio = S3C64XX_GPIO_L_NR,
1277 .label = "GPL",
1278 .to_irq = s3c64xx_gpiolib_lbank_to_irq,
1279 },
1280 },
1281 #endif
1282 };
1283
1284 static struct samsung_gpio_chip s3c64xx_gpios_2bit[] = {
1285 #ifdef CONFIG_PLAT_S3C64XX
1286 {
1287 .base = S3C64XX_GPF_BASE,
1288 .config = &samsung_gpio_cfgs[6],
1289 .chip = {
1290 .base = S3C64XX_GPF(0),
1291 .ngpio = S3C64XX_GPIO_F_NR,
1292 .label = "GPF",
1293 },
1294 }, {
1295 .config = &samsung_gpio_cfgs[7],
1296 .chip = {
1297 .base = S3C64XX_GPI(0),
1298 .ngpio = S3C64XX_GPIO_I_NR,
1299 .label = "GPI",
1300 },
1301 }, {
1302 .config = &samsung_gpio_cfgs[7],
1303 .chip = {
1304 .base = S3C64XX_GPJ(0),
1305 .ngpio = S3C64XX_GPIO_J_NR,
1306 .label = "GPJ",
1307 },
1308 }, {
1309 .config = &samsung_gpio_cfgs[6],
1310 .chip = {
1311 .base = S3C64XX_GPO(0),
1312 .ngpio = S3C64XX_GPIO_O_NR,
1313 .label = "GPO",
1314 },
1315 }, {
1316 .config = &samsung_gpio_cfgs[6],
1317 .chip = {
1318 .base = S3C64XX_GPP(0),
1319 .ngpio = S3C64XX_GPIO_P_NR,
1320 .label = "GPP",
1321 },
1322 }, {
1323 .config = &samsung_gpio_cfgs[6],
1324 .chip = {
1325 .base = S3C64XX_GPQ(0),
1326 .ngpio = S3C64XX_GPIO_Q_NR,
1327 .label = "GPQ",
1328 },
1329 }, {
1330 .base = S3C64XX_GPN_BASE,
1331 .irq_base = IRQ_EINT(0),
1332 .config = &samsung_gpio_cfgs[5],
1333 .chip = {
1334 .base = S3C64XX_GPN(0),
1335 .ngpio = S3C64XX_GPIO_N_NR,
1336 .label = "GPN",
1337 .to_irq = samsung_gpiolib_to_irq,
1338 },
1339 },
1340 #endif
1341 };
1342
1343 /*
1344 * S5P6440 GPIO bank summary:
1345 *
1346 * Bank GPIOs Style SlpCon ExtInt Group
1347 * A 6 4Bit Yes 1
1348 * B 7 4Bit Yes 1
1349 * C 8 4Bit Yes 2
1350 * F 2 2Bit Yes 4 [1]
1351 * G 7 4Bit Yes 5
1352 * H 10 4Bit[2] Yes 6
1353 * I 16 2Bit Yes None
1354 * J 12 2Bit Yes None
1355 * N 16 2Bit No IRQ_EINT
1356 * P 8 2Bit Yes 8
1357 * R 15 4Bit[2] Yes 8
1358 */
1359
1360 static struct samsung_gpio_chip s5p6440_gpios_4bit[] = {
1361 #ifdef CONFIG_CPU_S5P6440
1362 {
1363 .chip = {
1364 .base = S5P6440_GPA(0),
1365 .ngpio = S5P6440_GPIO_A_NR,
1366 .label = "GPA",
1367 },
1368 }, {
1369 .chip = {
1370 .base = S5P6440_GPB(0),
1371 .ngpio = S5P6440_GPIO_B_NR,
1372 .label = "GPB",
1373 },
1374 }, {
1375 .chip = {
1376 .base = S5P6440_GPC(0),
1377 .ngpio = S5P6440_GPIO_C_NR,
1378 .label = "GPC",
1379 },
1380 }, {
1381 .base = S5P64X0_GPG_BASE,
1382 .chip = {
1383 .base = S5P6440_GPG(0),
1384 .ngpio = S5P6440_GPIO_G_NR,
1385 .label = "GPG",
1386 },
1387 },
1388 #endif
1389 };
1390
1391 static struct samsung_gpio_chip s5p6440_gpios_4bit2[] = {
1392 #ifdef CONFIG_CPU_S5P6440
1393 {
1394 .base = S5P64X0_GPH_BASE + 0x4,
1395 .chip = {
1396 .base = S5P6440_GPH(0),
1397 .ngpio = S5P6440_GPIO_H_NR,
1398 .label = "GPH",
1399 },
1400 },
1401 #endif
1402 };
1403
1404 static struct samsung_gpio_chip s5p6440_gpios_rbank[] = {
1405 #ifdef CONFIG_CPU_S5P6440
1406 {
1407 .base = S5P64X0_GPR_BASE + 0x4,
1408 .config = &s5p64x0_gpio_cfg_rbank,
1409 .chip = {
1410 .base = S5P6440_GPR(0),
1411 .ngpio = S5P6440_GPIO_R_NR,
1412 .label = "GPR",
1413 },
1414 },
1415 #endif
1416 };
1417
1418 static struct samsung_gpio_chip s5p6440_gpios_2bit[] = {
1419 #ifdef CONFIG_CPU_S5P6440
1420 {
1421 .base = S5P64X0_GPF_BASE,
1422 .config = &samsung_gpio_cfgs[6],
1423 .chip = {
1424 .base = S5P6440_GPF(0),
1425 .ngpio = S5P6440_GPIO_F_NR,
1426 .label = "GPF",
1427 },
1428 }, {
1429 .base = S5P64X0_GPI_BASE,
1430 .config = &samsung_gpio_cfgs[4],
1431 .chip = {
1432 .base = S5P6440_GPI(0),
1433 .ngpio = S5P6440_GPIO_I_NR,
1434 .label = "GPI",
1435 },
1436 }, {
1437 .base = S5P64X0_GPJ_BASE,
1438 .config = &samsung_gpio_cfgs[4],
1439 .chip = {
1440 .base = S5P6440_GPJ(0),
1441 .ngpio = S5P6440_GPIO_J_NR,
1442 .label = "GPJ",
1443 },
1444 }, {
1445 .base = S5P64X0_GPN_BASE,
1446 .config = &samsung_gpio_cfgs[5],
1447 .chip = {
1448 .base = S5P6440_GPN(0),
1449 .ngpio = S5P6440_GPIO_N_NR,
1450 .label = "GPN",
1451 },
1452 }, {
1453 .base = S5P64X0_GPP_BASE,
1454 .config = &samsung_gpio_cfgs[6],
1455 .chip = {
1456 .base = S5P6440_GPP(0),
1457 .ngpio = S5P6440_GPIO_P_NR,
1458 .label = "GPP",
1459 },
1460 },
1461 #endif
1462 };
1463
1464 /*
1465 * S5P6450 GPIO bank summary:
1466 *
1467 * Bank GPIOs Style SlpCon ExtInt Group
1468 * A 6 4Bit Yes 1
1469 * B 7 4Bit Yes 1
1470 * C 8 4Bit Yes 2
1471 * D 8 4Bit Yes None
1472 * F 2 2Bit Yes None
1473 * G 14 4Bit[2] Yes 5
1474 * H 10 4Bit[2] Yes 6
1475 * I 16 2Bit Yes None
1476 * J 12 2Bit Yes None
1477 * K 5 4Bit Yes None
1478 * N 16 2Bit No IRQ_EINT
1479 * P 11 2Bit Yes 8
1480 * Q 14 2Bit Yes None
1481 * R 15 4Bit[2] Yes None
1482 * S 8 2Bit Yes None
1483 *
1484 * [1] BANKF pins 14,15 do not form part of the external interrupt sources
1485 * [2] BANK has two control registers, GPxCON0 and GPxCON1
1486 */
1487
1488 static struct samsung_gpio_chip s5p6450_gpios_4bit[] = {
1489 #ifdef CONFIG_CPU_S5P6450
1490 {
1491 .chip = {
1492 .base = S5P6450_GPA(0),
1493 .ngpio = S5P6450_GPIO_A_NR,
1494 .label = "GPA",
1495 },
1496 }, {
1497 .chip = {
1498 .base = S5P6450_GPB(0),
1499 .ngpio = S5P6450_GPIO_B_NR,
1500 .label = "GPB",
1501 },
1502 }, {
1503 .chip = {
1504 .base = S5P6450_GPC(0),
1505 .ngpio = S5P6450_GPIO_C_NR,
1506 .label = "GPC",
1507 },
1508 }, {
1509 .chip = {
1510 .base = S5P6450_GPD(0),
1511 .ngpio = S5P6450_GPIO_D_NR,
1512 .label = "GPD",
1513 },
1514 }, {
1515 .base = S5P6450_GPK_BASE,
1516 .chip = {
1517 .base = S5P6450_GPK(0),
1518 .ngpio = S5P6450_GPIO_K_NR,
1519 .label = "GPK",
1520 },
1521 },
1522 #endif
1523 };
1524
1525 static struct samsung_gpio_chip s5p6450_gpios_4bit2[] = {
1526 #ifdef CONFIG_CPU_S5P6450
1527 {
1528 .base = S5P64X0_GPG_BASE + 0x4,
1529 .chip = {
1530 .base = S5P6450_GPG(0),
1531 .ngpio = S5P6450_GPIO_G_NR,
1532 .label = "GPG",
1533 },
1534 }, {
1535 .base = S5P64X0_GPH_BASE + 0x4,
1536 .chip = {
1537 .base = S5P6450_GPH(0),
1538 .ngpio = S5P6450_GPIO_H_NR,
1539 .label = "GPH",
1540 },
1541 },
1542 #endif
1543 };
1544
1545 static struct samsung_gpio_chip s5p6450_gpios_rbank[] = {
1546 #ifdef CONFIG_CPU_S5P6450
1547 {
1548 .base = S5P64X0_GPR_BASE + 0x4,
1549 .config = &s5p64x0_gpio_cfg_rbank,
1550 .chip = {
1551 .base = S5P6450_GPR(0),
1552 .ngpio = S5P6450_GPIO_R_NR,
1553 .label = "GPR",
1554 },
1555 },
1556 #endif
1557 };
1558
1559 static struct samsung_gpio_chip s5p6450_gpios_2bit[] = {
1560 #ifdef CONFIG_CPU_S5P6450
1561 {
1562 .base = S5P64X0_GPF_BASE,
1563 .config = &samsung_gpio_cfgs[6],
1564 .chip = {
1565 .base = S5P6450_GPF(0),
1566 .ngpio = S5P6450_GPIO_F_NR,
1567 .label = "GPF",
1568 },
1569 }, {
1570 .base = S5P64X0_GPI_BASE,
1571 .config = &samsung_gpio_cfgs[4],
1572 .chip = {
1573 .base = S5P6450_GPI(0),
1574 .ngpio = S5P6450_GPIO_I_NR,
1575 .label = "GPI",
1576 },
1577 }, {
1578 .base = S5P64X0_GPJ_BASE,
1579 .config = &samsung_gpio_cfgs[4],
1580 .chip = {
1581 .base = S5P6450_GPJ(0),
1582 .ngpio = S5P6450_GPIO_J_NR,
1583 .label = "GPJ",
1584 },
1585 }, {
1586 .base = S5P64X0_GPN_BASE,
1587 .config = &samsung_gpio_cfgs[5],
1588 .chip = {
1589 .base = S5P6450_GPN(0),
1590 .ngpio = S5P6450_GPIO_N_NR,
1591 .label = "GPN",
1592 },
1593 }, {
1594 .base = S5P64X0_GPP_BASE,
1595 .config = &samsung_gpio_cfgs[6],
1596 .chip = {
1597 .base = S5P6450_GPP(0),
1598 .ngpio = S5P6450_GPIO_P_NR,
1599 .label = "GPP",
1600 },
1601 }, {
1602 .base = S5P6450_GPQ_BASE,
1603 .config = &samsung_gpio_cfgs[5],
1604 .chip = {
1605 .base = S5P6450_GPQ(0),
1606 .ngpio = S5P6450_GPIO_Q_NR,
1607 .label = "GPQ",
1608 },
1609 }, {
1610 .base = S5P6450_GPS_BASE,
1611 .config = &samsung_gpio_cfgs[6],
1612 .chip = {
1613 .base = S5P6450_GPS(0),
1614 .ngpio = S5P6450_GPIO_S_NR,
1615 .label = "GPS",
1616 },
1617 },
1618 #endif
1619 };
1620
1621 /*
1622 * S5PC100 GPIO bank summary:
1623 *
1624 * Bank GPIOs Style INT Type
1625 * A0 8 4Bit GPIO_INT0
1626 * A1 5 4Bit GPIO_INT1
1627 * B 8 4Bit GPIO_INT2
1628 * C 5 4Bit GPIO_INT3
1629 * D 7 4Bit GPIO_INT4
1630 * E0 8 4Bit GPIO_INT5
1631 * E1 6 4Bit GPIO_INT6
1632 * F0 8 4Bit GPIO_INT7
1633 * F1 8 4Bit GPIO_INT8
1634 * F2 8 4Bit GPIO_INT9
1635 * F3 4 4Bit GPIO_INT10
1636 * G0 8 4Bit GPIO_INT11
1637 * G1 3 4Bit GPIO_INT12
1638 * G2 7 4Bit GPIO_INT13
1639 * G3 7 4Bit GPIO_INT14
1640 * H0 8 4Bit WKUP_INT
1641 * H1 8 4Bit WKUP_INT
1642 * H2 8 4Bit WKUP_INT
1643 * H3 8 4Bit WKUP_INT
1644 * I 8 4Bit GPIO_INT15
1645 * J0 8 4Bit GPIO_INT16
1646 * J1 5 4Bit GPIO_INT17
1647 * J2 8 4Bit GPIO_INT18
1648 * J3 8 4Bit GPIO_INT19
1649 * J4 4 4Bit GPIO_INT20
1650 * K0 8 4Bit None
1651 * K1 6 4Bit None
1652 * K2 8 4Bit None
1653 * K3 8 4Bit None
1654 * L0 8 4Bit None
1655 * L1 8 4Bit None
1656 * L2 8 4Bit None
1657 * L3 8 4Bit None
1658 */
1659
1660 static struct samsung_gpio_chip s5pc100_gpios_4bit[] = {
1661 #ifdef CONFIG_CPU_S5PC100
1662 {
1663 .chip = {
1664 .base = S5PC100_GPA0(0),
1665 .ngpio = S5PC100_GPIO_A0_NR,
1666 .label = "GPA0",
1667 },
1668 }, {
1669 .chip = {
1670 .base = S5PC100_GPA1(0),
1671 .ngpio = S5PC100_GPIO_A1_NR,
1672 .label = "GPA1",
1673 },
1674 }, {
1675 .chip = {
1676 .base = S5PC100_GPB(0),
1677 .ngpio = S5PC100_GPIO_B_NR,
1678 .label = "GPB",
1679 },
1680 }, {
1681 .chip = {
1682 .base = S5PC100_GPC(0),
1683 .ngpio = S5PC100_GPIO_C_NR,
1684 .label = "GPC",
1685 },
1686 }, {
1687 .chip = {
1688 .base = S5PC100_GPD(0),
1689 .ngpio = S5PC100_GPIO_D_NR,
1690 .label = "GPD",
1691 },
1692 }, {
1693 .chip = {
1694 .base = S5PC100_GPE0(0),
1695 .ngpio = S5PC100_GPIO_E0_NR,
1696 .label = "GPE0",
1697 },
1698 }, {
1699 .chip = {
1700 .base = S5PC100_GPE1(0),
1701 .ngpio = S5PC100_GPIO_E1_NR,
1702 .label = "GPE1",
1703 },
1704 }, {
1705 .chip = {
1706 .base = S5PC100_GPF0(0),
1707 .ngpio = S5PC100_GPIO_F0_NR,
1708 .label = "GPF0",
1709 },
1710 }, {
1711 .chip = {
1712 .base = S5PC100_GPF1(0),
1713 .ngpio = S5PC100_GPIO_F1_NR,
1714 .label = "GPF1",
1715 },
1716 }, {
1717 .chip = {
1718 .base = S5PC100_GPF2(0),
1719 .ngpio = S5PC100_GPIO_F2_NR,
1720 .label = "GPF2",
1721 },
1722 }, {
1723 .chip = {
1724 .base = S5PC100_GPF3(0),
1725 .ngpio = S5PC100_GPIO_F3_NR,
1726 .label = "GPF3",
1727 },
1728 }, {
1729 .chip = {
1730 .base = S5PC100_GPG0(0),
1731 .ngpio = S5PC100_GPIO_G0_NR,
1732 .label = "GPG0",
1733 },
1734 }, {
1735 .chip = {
1736 .base = S5PC100_GPG1(0),
1737 .ngpio = S5PC100_GPIO_G1_NR,
1738 .label = "GPG1",
1739 },
1740 }, {
1741 .chip = {
1742 .base = S5PC100_GPG2(0),
1743 .ngpio = S5PC100_GPIO_G2_NR,
1744 .label = "GPG2",
1745 },
1746 }, {
1747 .chip = {
1748 .base = S5PC100_GPG3(0),
1749 .ngpio = S5PC100_GPIO_G3_NR,
1750 .label = "GPG3",
1751 },
1752 }, {
1753 .chip = {
1754 .base = S5PC100_GPI(0),
1755 .ngpio = S5PC100_GPIO_I_NR,
1756 .label = "GPI",
1757 },
1758 }, {
1759 .chip = {
1760 .base = S5PC100_GPJ0(0),
1761 .ngpio = S5PC100_GPIO_J0_NR,
1762 .label = "GPJ0",
1763 },
1764 }, {
1765 .chip = {
1766 .base = S5PC100_GPJ1(0),
1767 .ngpio = S5PC100_GPIO_J1_NR,
1768 .label = "GPJ1",
1769 },
1770 }, {
1771 .chip = {
1772 .base = S5PC100_GPJ2(0),
1773 .ngpio = S5PC100_GPIO_J2_NR,
1774 .label = "GPJ2",
1775 },
1776 }, {
1777 .chip = {
1778 .base = S5PC100_GPJ3(0),
1779 .ngpio = S5PC100_GPIO_J3_NR,
1780 .label = "GPJ3",
1781 },
1782 }, {
1783 .chip = {
1784 .base = S5PC100_GPJ4(0),
1785 .ngpio = S5PC100_GPIO_J4_NR,
1786 .label = "GPJ4",
1787 },
1788 }, {
1789 .chip = {
1790 .base = S5PC100_GPK0(0),
1791 .ngpio = S5PC100_GPIO_K0_NR,
1792 .label = "GPK0",
1793 },
1794 }, {
1795 .chip = {
1796 .base = S5PC100_GPK1(0),
1797 .ngpio = S5PC100_GPIO_K1_NR,
1798 .label = "GPK1",
1799 },
1800 }, {
1801 .chip = {
1802 .base = S5PC100_GPK2(0),
1803 .ngpio = S5PC100_GPIO_K2_NR,
1804 .label = "GPK2",
1805 },
1806 }, {
1807 .chip = {
1808 .base = S5PC100_GPK3(0),
1809 .ngpio = S5PC100_GPIO_K3_NR,
1810 .label = "GPK3",
1811 },
1812 }, {
1813 .chip = {
1814 .base = S5PC100_GPL0(0),
1815 .ngpio = S5PC100_GPIO_L0_NR,
1816 .label = "GPL0",
1817 },
1818 }, {
1819 .chip = {
1820 .base = S5PC100_GPL1(0),
1821 .ngpio = S5PC100_GPIO_L1_NR,
1822 .label = "GPL1",
1823 },
1824 }, {
1825 .chip = {
1826 .base = S5PC100_GPL2(0),
1827 .ngpio = S5PC100_GPIO_L2_NR,
1828 .label = "GPL2",
1829 },
1830 }, {
1831 .chip = {
1832 .base = S5PC100_GPL3(0),
1833 .ngpio = S5PC100_GPIO_L3_NR,
1834 .label = "GPL3",
1835 },
1836 }, {
1837 .chip = {
1838 .base = S5PC100_GPL4(0),
1839 .ngpio = S5PC100_GPIO_L4_NR,
1840 .label = "GPL4",
1841 },
1842 }, {
1843 .base = (S5P_VA_GPIO + 0xC00),
1844 .irq_base = IRQ_EINT(0),
1845 .chip = {
1846 .base = S5PC100_GPH0(0),
1847 .ngpio = S5PC100_GPIO_H0_NR,
1848 .label = "GPH0",
1849 .to_irq = samsung_gpiolib_to_irq,
1850 },
1851 }, {
1852 .base = (S5P_VA_GPIO + 0xC20),
1853 .irq_base = IRQ_EINT(8),
1854 .chip = {
1855 .base = S5PC100_GPH1(0),
1856 .ngpio = S5PC100_GPIO_H1_NR,
1857 .label = "GPH1",
1858 .to_irq = samsung_gpiolib_to_irq,
1859 },
1860 }, {
1861 .base = (S5P_VA_GPIO + 0xC40),
1862 .irq_base = IRQ_EINT(16),
1863 .chip = {
1864 .base = S5PC100_GPH2(0),
1865 .ngpio = S5PC100_GPIO_H2_NR,
1866 .label = "GPH2",
1867 .to_irq = samsung_gpiolib_to_irq,
1868 },
1869 }, {
1870 .base = (S5P_VA_GPIO + 0xC60),
1871 .irq_base = IRQ_EINT(24),
1872 .chip = {
1873 .base = S5PC100_GPH3(0),
1874 .ngpio = S5PC100_GPIO_H3_NR,
1875 .label = "GPH3",
1876 .to_irq = samsung_gpiolib_to_irq,
1877 },
1878 },
1879 #endif
1880 };
1881
1882 /*
1883 * Followings are the gpio banks in S5PV210/S5PC110
1884 *
1885 * The 'config' member when left to NULL, is initialized to the default
1886 * structure samsung_gpio_cfgs[3] in the init function below.
1887 *
1888 * The 'base' member is also initialized in the init function below.
1889 * Note: The initialization of 'base' member of samsung_gpio_chip structure
1890 * uses the above macro and depends on the banks being listed in order here.
1891 */
1892
1893 static struct samsung_gpio_chip s5pv210_gpios_4bit[] = {
1894 #ifdef CONFIG_CPU_S5PV210
1895 {
1896 .chip = {
1897 .base = S5PV210_GPA0(0),
1898 .ngpio = S5PV210_GPIO_A0_NR,
1899 .label = "GPA0",
1900 },
1901 }, {
1902 .chip = {
1903 .base = S5PV210_GPA1(0),
1904 .ngpio = S5PV210_GPIO_A1_NR,
1905 .label = "GPA1",
1906 },
1907 }, {
1908 .chip = {
1909 .base = S5PV210_GPB(0),
1910 .ngpio = S5PV210_GPIO_B_NR,
1911 .label = "GPB",
1912 },
1913 }, {
1914 .chip = {
1915 .base = S5PV210_GPC0(0),
1916 .ngpio = S5PV210_GPIO_C0_NR,
1917 .label = "GPC0",
1918 },
1919 }, {
1920 .chip = {
1921 .base = S5PV210_GPC1(0),
1922 .ngpio = S5PV210_GPIO_C1_NR,
1923 .label = "GPC1",
1924 },
1925 }, {
1926 .chip = {
1927 .base = S5PV210_GPD0(0),
1928 .ngpio = S5PV210_GPIO_D0_NR,
1929 .label = "GPD0",
1930 },
1931 }, {
1932 .chip = {
1933 .base = S5PV210_GPD1(0),
1934 .ngpio = S5PV210_GPIO_D1_NR,
1935 .label = "GPD1",
1936 },
1937 }, {
1938 .chip = {
1939 .base = S5PV210_GPE0(0),
1940 .ngpio = S5PV210_GPIO_E0_NR,
1941 .label = "GPE0",
1942 },
1943 }, {
1944 .chip = {
1945 .base = S5PV210_GPE1(0),
1946 .ngpio = S5PV210_GPIO_E1_NR,
1947 .label = "GPE1",
1948 },
1949 }, {
1950 .chip = {
1951 .base = S5PV210_GPF0(0),
1952 .ngpio = S5PV210_GPIO_F0_NR,
1953 .label = "GPF0",
1954 },
1955 }, {
1956 .chip = {
1957 .base = S5PV210_GPF1(0),
1958 .ngpio = S5PV210_GPIO_F1_NR,
1959 .label = "GPF1",
1960 },
1961 }, {
1962 .chip = {
1963 .base = S5PV210_GPF2(0),
1964 .ngpio = S5PV210_GPIO_F2_NR,
1965 .label = "GPF2",
1966 },
1967 }, {
1968 .chip = {
1969 .base = S5PV210_GPF3(0),
1970 .ngpio = S5PV210_GPIO_F3_NR,
1971 .label = "GPF3",
1972 },
1973 }, {
1974 .chip = {
1975 .base = S5PV210_GPG0(0),
1976 .ngpio = S5PV210_GPIO_G0_NR,
1977 .label = "GPG0",
1978 },
1979 }, {
1980 .chip = {
1981 .base = S5PV210_GPG1(0),
1982 .ngpio = S5PV210_GPIO_G1_NR,
1983 .label = "GPG1",
1984 },
1985 }, {
1986 .chip = {
1987 .base = S5PV210_GPG2(0),
1988 .ngpio = S5PV210_GPIO_G2_NR,
1989 .label = "GPG2",
1990 },
1991 }, {
1992 .chip = {
1993 .base = S5PV210_GPG3(0),
1994 .ngpio = S5PV210_GPIO_G3_NR,
1995 .label = "GPG3",
1996 },
1997 }, {
1998 .chip = {
1999 .base = S5PV210_GPI(0),
2000 .ngpio = S5PV210_GPIO_I_NR,
2001 .label = "GPI",
2002 },
2003 }, {
2004 .chip = {
2005 .base = S5PV210_GPJ0(0),
2006 .ngpio = S5PV210_GPIO_J0_NR,
2007 .label = "GPJ0",
2008 },
2009 }, {
2010 .chip = {
2011 .base = S5PV210_GPJ1(0),
2012 .ngpio = S5PV210_GPIO_J1_NR,
2013 .label = "GPJ1",
2014 },
2015 }, {
2016 .chip = {
2017 .base = S5PV210_GPJ2(0),
2018 .ngpio = S5PV210_GPIO_J2_NR,
2019 .label = "GPJ2",
2020 },
2021 }, {
2022 .chip = {
2023 .base = S5PV210_GPJ3(0),
2024 .ngpio = S5PV210_GPIO_J3_NR,
2025 .label = "GPJ3",
2026 },
2027 }, {
2028 .chip = {
2029 .base = S5PV210_GPJ4(0),
2030 .ngpio = S5PV210_GPIO_J4_NR,
2031 .label = "GPJ4",
2032 },
2033 }, {
2034 .chip = {
2035 .base = S5PV210_MP01(0),
2036 .ngpio = S5PV210_GPIO_MP01_NR,
2037 .label = "MP01",
2038 },
2039 }, {
2040 .chip = {
2041 .base = S5PV210_MP02(0),
2042 .ngpio = S5PV210_GPIO_MP02_NR,
2043 .label = "MP02",
2044 },
2045 }, {
2046 .chip = {
2047 .base = S5PV210_MP03(0),
2048 .ngpio = S5PV210_GPIO_MP03_NR,
2049 .label = "MP03",
2050 },
2051 }, {
2052 .chip = {
2053 .base = S5PV210_MP04(0),
2054 .ngpio = S5PV210_GPIO_MP04_NR,
2055 .label = "MP04",
2056 },
2057 }, {
2058 .chip = {
2059 .base = S5PV210_MP05(0),
2060 .ngpio = S5PV210_GPIO_MP05_NR,
2061 .label = "MP05",
2062 },
2063 }, {
2064 .base = (S5P_VA_GPIO + 0xC00),
2065 .irq_base = IRQ_EINT(0),
2066 .chip = {
2067 .base = S5PV210_GPH0(0),
2068 .ngpio = S5PV210_GPIO_H0_NR,
2069 .label = "GPH0",
2070 .to_irq = samsung_gpiolib_to_irq,
2071 },
2072 }, {
2073 .base = (S5P_VA_GPIO + 0xC20),
2074 .irq_base = IRQ_EINT(8),
2075 .chip = {
2076 .base = S5PV210_GPH1(0),
2077 .ngpio = S5PV210_GPIO_H1_NR,
2078 .label = "GPH1",
2079 .to_irq = samsung_gpiolib_to_irq,
2080 },
2081 }, {
2082 .base = (S5P_VA_GPIO + 0xC40),
2083 .irq_base = IRQ_EINT(16),
2084 .chip = {
2085 .base = S5PV210_GPH2(0),
2086 .ngpio = S5PV210_GPIO_H2_NR,
2087 .label = "GPH2",
2088 .to_irq = samsung_gpiolib_to_irq,
2089 },
2090 }, {
2091 .base = (S5P_VA_GPIO + 0xC60),
2092 .irq_base = IRQ_EINT(24),
2093 .chip = {
2094 .base = S5PV210_GPH3(0),
2095 .ngpio = S5PV210_GPIO_H3_NR,
2096 .label = "GPH3",
2097 .to_irq = samsung_gpiolib_to_irq,
2098 },
2099 },
2100 #endif
2101 };
2102
2103 /*
2104 * Followings are the gpio banks in EXYNOS4210
2105 *
2106 * The 'config' member when left to NULL, is initialized to the default
2107 * structure samsung_gpio_cfgs[3] in the init function below.
2108 *
2109 * The 'base' member is also initialized in the init function below.
2110 * Note: The initialization of 'base' member of samsung_gpio_chip structure
2111 * uses the above macro and depends on the banks being listed in order here.
2112 */
2113
2114 static struct samsung_gpio_chip exynos4_gpios_1[] = {
2115 #ifdef CONFIG_ARCH_EXYNOS4
2116 {
2117 .chip = {
2118 .base = EXYNOS4_GPA0(0),
2119 .ngpio = EXYNOS4_GPIO_A0_NR,
2120 .label = "GPA0",
2121 },
2122 }, {
2123 .chip = {
2124 .base = EXYNOS4_GPA1(0),
2125 .ngpio = EXYNOS4_GPIO_A1_NR,
2126 .label = "GPA1",
2127 },
2128 }, {
2129 .chip = {
2130 .base = EXYNOS4_GPB(0),
2131 .ngpio = EXYNOS4_GPIO_B_NR,
2132 .label = "GPB",
2133 },
2134 }, {
2135 .chip = {
2136 .base = EXYNOS4_GPC0(0),
2137 .ngpio = EXYNOS4_GPIO_C0_NR,
2138 .label = "GPC0",
2139 },
2140 }, {
2141 .chip = {
2142 .base = EXYNOS4_GPC1(0),
2143 .ngpio = EXYNOS4_GPIO_C1_NR,
2144 .label = "GPC1",
2145 },
2146 }, {
2147 .chip = {
2148 .base = EXYNOS4_GPD0(0),
2149 .ngpio = EXYNOS4_GPIO_D0_NR,
2150 .label = "GPD0",
2151 },
2152 }, {
2153 .chip = {
2154 .base = EXYNOS4_GPD1(0),
2155 .ngpio = EXYNOS4_GPIO_D1_NR,
2156 .label = "GPD1",
2157 },
2158 }, {
2159 .chip = {
2160 .base = EXYNOS4_GPE0(0),
2161 .ngpio = EXYNOS4_GPIO_E0_NR,
2162 .label = "GPE0",
2163 },
2164 }, {
2165 .chip = {
2166 .base = EXYNOS4_GPE1(0),
2167 .ngpio = EXYNOS4_GPIO_E1_NR,
2168 .label = "GPE1",
2169 },
2170 }, {
2171 .chip = {
2172 .base = EXYNOS4_GPE2(0),
2173 .ngpio = EXYNOS4_GPIO_E2_NR,
2174 .label = "GPE2",
2175 },
2176 }, {
2177 .chip = {
2178 .base = EXYNOS4_GPE3(0),
2179 .ngpio = EXYNOS4_GPIO_E3_NR,
2180 .label = "GPE3",
2181 },
2182 }, {
2183 .chip = {
2184 .base = EXYNOS4_GPE4(0),
2185 .ngpio = EXYNOS4_GPIO_E4_NR,
2186 .label = "GPE4",
2187 },
2188 }, {
2189 .chip = {
2190 .base = EXYNOS4_GPF0(0),
2191 .ngpio = EXYNOS4_GPIO_F0_NR,
2192 .label = "GPF0",
2193 },
2194 }, {
2195 .chip = {
2196 .base = EXYNOS4_GPF1(0),
2197 .ngpio = EXYNOS4_GPIO_F1_NR,
2198 .label = "GPF1",
2199 },
2200 }, {
2201 .chip = {
2202 .base = EXYNOS4_GPF2(0),
2203 .ngpio = EXYNOS4_GPIO_F2_NR,
2204 .label = "GPF2",
2205 },
2206 }, {
2207 .chip = {
2208 .base = EXYNOS4_GPF3(0),
2209 .ngpio = EXYNOS4_GPIO_F3_NR,
2210 .label = "GPF3",
2211 },
2212 },
2213 #endif
2214 };
2215
2216 static struct samsung_gpio_chip exynos4_gpios_2[] = {
2217 #ifdef CONFIG_ARCH_EXYNOS4
2218 {
2219 .chip = {
2220 .base = EXYNOS4_GPJ0(0),
2221 .ngpio = EXYNOS4_GPIO_J0_NR,
2222 .label = "GPJ0",
2223 },
2224 }, {
2225 .chip = {
2226 .base = EXYNOS4_GPJ1(0),
2227 .ngpio = EXYNOS4_GPIO_J1_NR,
2228 .label = "GPJ1",
2229 },
2230 }, {
2231 .chip = {
2232 .base = EXYNOS4_GPK0(0),
2233 .ngpio = EXYNOS4_GPIO_K0_NR,
2234 .label = "GPK0",
2235 },
2236 }, {
2237 .chip = {
2238 .base = EXYNOS4_GPK1(0),
2239 .ngpio = EXYNOS4_GPIO_K1_NR,
2240 .label = "GPK1",
2241 },
2242 }, {
2243 .chip = {
2244 .base = EXYNOS4_GPK2(0),
2245 .ngpio = EXYNOS4_GPIO_K2_NR,
2246 .label = "GPK2",
2247 },
2248 }, {
2249 .chip = {
2250 .base = EXYNOS4_GPK3(0),
2251 .ngpio = EXYNOS4_GPIO_K3_NR,
2252 .label = "GPK3",
2253 },
2254 }, {
2255 .chip = {
2256 .base = EXYNOS4_GPL0(0),
2257 .ngpio = EXYNOS4_GPIO_L0_NR,
2258 .label = "GPL0",
2259 },
2260 }, {
2261 .chip = {
2262 .base = EXYNOS4_GPL1(0),
2263 .ngpio = EXYNOS4_GPIO_L1_NR,
2264 .label = "GPL1",
2265 },
2266 }, {
2267 .chip = {
2268 .base = EXYNOS4_GPL2(0),
2269 .ngpio = EXYNOS4_GPIO_L2_NR,
2270 .label = "GPL2",
2271 },
2272 }, {
2273 .config = &samsung_gpio_cfgs[8],
2274 .chip = {
2275 .base = EXYNOS4_GPY0(0),
2276 .ngpio = EXYNOS4_GPIO_Y0_NR,
2277 .label = "GPY0",
2278 },
2279 }, {
2280 .config = &samsung_gpio_cfgs[8],
2281 .chip = {
2282 .base = EXYNOS4_GPY1(0),
2283 .ngpio = EXYNOS4_GPIO_Y1_NR,
2284 .label = "GPY1",
2285 },
2286 }, {
2287 .config = &samsung_gpio_cfgs[8],
2288 .chip = {
2289 .base = EXYNOS4_GPY2(0),
2290 .ngpio = EXYNOS4_GPIO_Y2_NR,
2291 .label = "GPY2",
2292 },
2293 }, {
2294 .config = &samsung_gpio_cfgs[8],
2295 .chip = {
2296 .base = EXYNOS4_GPY3(0),
2297 .ngpio = EXYNOS4_GPIO_Y3_NR,
2298 .label = "GPY3",
2299 },
2300 }, {
2301 .config = &samsung_gpio_cfgs[8],
2302 .chip = {
2303 .base = EXYNOS4_GPY4(0),
2304 .ngpio = EXYNOS4_GPIO_Y4_NR,
2305 .label = "GPY4",
2306 },
2307 }, {
2308 .config = &samsung_gpio_cfgs[8],
2309 .chip = {
2310 .base = EXYNOS4_GPY5(0),
2311 .ngpio = EXYNOS4_GPIO_Y5_NR,
2312 .label = "GPY5",
2313 },
2314 }, {
2315 .config = &samsung_gpio_cfgs[8],
2316 .chip = {
2317 .base = EXYNOS4_GPY6(0),
2318 .ngpio = EXYNOS4_GPIO_Y6_NR,
2319 .label = "GPY6",
2320 },
2321 }, {
2322 .base = (S5P_VA_GPIO2 + 0xC00),
2323 .config = &samsung_gpio_cfgs[9],
2324 .irq_base = IRQ_EINT(0),
2325 .chip = {
2326 .base = EXYNOS4_GPX0(0),
2327 .ngpio = EXYNOS4_GPIO_X0_NR,
2328 .label = "GPX0",
2329 .to_irq = samsung_gpiolib_to_irq,
2330 },
2331 }, {
2332 .base = (S5P_VA_GPIO2 + 0xC20),
2333 .config = &samsung_gpio_cfgs[9],
2334 .irq_base = IRQ_EINT(8),
2335 .chip = {
2336 .base = EXYNOS4_GPX1(0),
2337 .ngpio = EXYNOS4_GPIO_X1_NR,
2338 .label = "GPX1",
2339 .to_irq = samsung_gpiolib_to_irq,
2340 },
2341 }, {
2342 .base = (S5P_VA_GPIO2 + 0xC40),
2343 .config = &samsung_gpio_cfgs[9],
2344 .irq_base = IRQ_EINT(16),
2345 .chip = {
2346 .base = EXYNOS4_GPX2(0),
2347 .ngpio = EXYNOS4_GPIO_X2_NR,
2348 .label = "GPX2",
2349 .to_irq = samsung_gpiolib_to_irq,
2350 },
2351 }, {
2352 .base = (S5P_VA_GPIO2 + 0xC60),
2353 .config = &samsung_gpio_cfgs[9],
2354 .irq_base = IRQ_EINT(24),
2355 .chip = {
2356 .base = EXYNOS4_GPX3(0),
2357 .ngpio = EXYNOS4_GPIO_X3_NR,
2358 .label = "GPX3",
2359 .to_irq = samsung_gpiolib_to_irq,
2360 },
2361 },
2362 #endif
2363 };
2364
2365 static struct samsung_gpio_chip exynos4_gpios_3[] = {
2366 #ifdef CONFIG_ARCH_EXYNOS4
2367 {
2368 .chip = {
2369 .base = EXYNOS4_GPZ(0),
2370 .ngpio = EXYNOS4_GPIO_Z_NR,
2371 .label = "GPZ",
2372 },
2373 },
2374 #endif
2375 };
2376
2377 /* TODO: cleanup soc_is_* */
2378 static __init int samsung_gpiolib_init(void)
2379 {
2380 struct samsung_gpio_chip *chip;
2381 int i, nr_chips;
2382 int group = 0;
2383
2384 samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
2385
2386 if (soc_is_s3c24xx()) {
2387 s3c24xx_gpiolib_add_chips(s3c24xx_gpios,
2388 ARRAY_SIZE(s3c24xx_gpios), S3C24XX_VA_GPIO);
2389 } else if (soc_is_s3c64xx()) {
2390 samsung_gpiolib_add_2bit_chips(s3c64xx_gpios_2bit,
2391 ARRAY_SIZE(s3c64xx_gpios_2bit),
2392 S3C64XX_VA_GPIO + 0xE0, 0x20);
2393 samsung_gpiolib_add_4bit_chips(s3c64xx_gpios_4bit,
2394 ARRAY_SIZE(s3c64xx_gpios_4bit),
2395 S3C64XX_VA_GPIO);
2396 samsung_gpiolib_add_4bit2_chips(s3c64xx_gpios_4bit2,
2397 ARRAY_SIZE(s3c64xx_gpios_4bit2));
2398 } else if (soc_is_s5p6440()) {
2399 samsung_gpiolib_add_2bit_chips(s5p6440_gpios_2bit,
2400 ARRAY_SIZE(s5p6440_gpios_2bit), NULL, 0x0);
2401 samsung_gpiolib_add_4bit_chips(s5p6440_gpios_4bit,
2402 ARRAY_SIZE(s5p6440_gpios_4bit), S5P_VA_GPIO);
2403 samsung_gpiolib_add_4bit2_chips(s5p6440_gpios_4bit2,
2404 ARRAY_SIZE(s5p6440_gpios_4bit2));
2405 s5p64x0_gpiolib_add_rbank(s5p6440_gpios_rbank,
2406 ARRAY_SIZE(s5p6440_gpios_rbank));
2407 } else if (soc_is_s5p6450()) {
2408 samsung_gpiolib_add_2bit_chips(s5p6450_gpios_2bit,
2409 ARRAY_SIZE(s5p6450_gpios_2bit), NULL, 0x0);
2410 samsung_gpiolib_add_4bit_chips(s5p6450_gpios_4bit,
2411 ARRAY_SIZE(s5p6450_gpios_4bit), S5P_VA_GPIO);
2412 samsung_gpiolib_add_4bit2_chips(s5p6450_gpios_4bit2,
2413 ARRAY_SIZE(s5p6450_gpios_4bit2));
2414 s5p64x0_gpiolib_add_rbank(s5p6450_gpios_rbank,
2415 ARRAY_SIZE(s5p6450_gpios_rbank));
2416 } else if (soc_is_s5pc100()) {
2417 group = 0;
2418 chip = s5pc100_gpios_4bit;
2419 nr_chips = ARRAY_SIZE(s5pc100_gpios_4bit);
2420
2421 for (i = 0; i < nr_chips; i++, chip++) {
2422 if (!chip->config) {
2423 chip->config = &samsung_gpio_cfgs[3];
2424 chip->group = group++;
2425 }
2426 }
2427 samsung_gpiolib_add_4bit_chips(s5pc100_gpios_4bit, nr_chips, S5P_VA_GPIO);
2428 #if defined(CONFIG_CPU_S5PC100) && defined(CONFIG_S5P_GPIO_INT)
2429 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
2430 #endif
2431 } else if (soc_is_s5pv210()) {
2432 group = 0;
2433 chip = s5pv210_gpios_4bit;
2434 nr_chips = ARRAY_SIZE(s5pv210_gpios_4bit);
2435
2436 for (i = 0; i < nr_chips; i++, chip++) {
2437 if (!chip->config) {
2438 chip->config = &samsung_gpio_cfgs[3];
2439 chip->group = group++;
2440 }
2441 }
2442 samsung_gpiolib_add_4bit_chips(s5pv210_gpios_4bit, nr_chips, S5P_VA_GPIO);
2443 #if defined(CONFIG_CPU_S5PV210) && defined(CONFIG_S5P_GPIO_INT)
2444 s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
2445 #endif
2446 } else if (soc_is_exynos4210()) {
2447 group = 0;
2448
2449 /* gpio part1 */
2450 chip = exynos4_gpios_1;
2451 nr_chips = ARRAY_SIZE(exynos4_gpios_1);
2452
2453 for (i = 0; i < nr_chips; i++, chip++) {
2454 if (!chip->config) {
2455 chip->config = &exynos4_gpio_cfg;
2456 chip->group = group++;
2457 }
2458 }
2459 samsung_gpiolib_add_4bit_chips(exynos4_gpios_1, nr_chips, S5P_VA_GPIO1);
2460
2461 /* gpio part2 */
2462 chip = exynos4_gpios_2;
2463 nr_chips = ARRAY_SIZE(exynos4_gpios_2);
2464
2465 for (i = 0; i < nr_chips; i++, chip++) {
2466 if (!chip->config) {
2467 chip->config = &exynos4_gpio_cfg;
2468 chip->group = group++;
2469 }
2470 }
2471 samsung_gpiolib_add_4bit_chips(exynos4_gpios_2, nr_chips, S5P_VA_GPIO2);
2472
2473 /* gpio part3 */
2474 chip = exynos4_gpios_3;
2475 nr_chips = ARRAY_SIZE(exynos4_gpios_3);
2476
2477 for (i = 0; i < nr_chips; i++, chip++) {
2478 if (!chip->config) {
2479 chip->config = &exynos4_gpio_cfg;
2480 chip->group = group++;
2481 }
2482 }
2483 samsung_gpiolib_add_4bit_chips(exynos4_gpios_3, nr_chips, S5P_VA_GPIO3);
2484
2485 #if defined(CONFIG_CPU_EXYNOS4210) && defined(CONFIG_S5P_GPIO_INT)
2486 s5p_register_gpioint_bank(IRQ_GPIO_XA, 0, IRQ_GPIO1_NR_GROUPS);
2487 s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS);
2488 #endif
2489 } else {
2490 WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n");
2491 return -ENODEV;
2492 }
2493
2494 return 0;
2495 }
2496 core_initcall(samsung_gpiolib_init);
2497
2498 int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
2499 {
2500 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2501 unsigned long flags;
2502 int offset;
2503 int ret;
2504
2505 if (!chip)
2506 return -EINVAL;
2507
2508 offset = pin - chip->chip.base;
2509
2510 samsung_gpio_lock(chip, flags);
2511 ret = samsung_gpio_do_setcfg(chip, offset, config);
2512 samsung_gpio_unlock(chip, flags);
2513
2514 return ret;
2515 }
2516 EXPORT_SYMBOL(s3c_gpio_cfgpin);
2517
2518 int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr,
2519 unsigned int cfg)
2520 {
2521 int ret;
2522
2523 for (; nr > 0; nr--, start++) {
2524 ret = s3c_gpio_cfgpin(start, cfg);
2525 if (ret != 0)
2526 return ret;
2527 }
2528
2529 return 0;
2530 }
2531 EXPORT_SYMBOL_GPL(s3c_gpio_cfgpin_range);
2532
2533 int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr,
2534 unsigned int cfg, samsung_gpio_pull_t pull)
2535 {
2536 int ret;
2537
2538 for (; nr > 0; nr--, start++) {
2539 s3c_gpio_setpull(start, pull);
2540 ret = s3c_gpio_cfgpin(start, cfg);
2541 if (ret != 0)
2542 return ret;
2543 }
2544
2545 return 0;
2546 }
2547 EXPORT_SYMBOL_GPL(s3c_gpio_cfgall_range);
2548
2549 unsigned s3c_gpio_getcfg(unsigned int pin)
2550 {
2551 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2552 unsigned long flags;
2553 unsigned ret = 0;
2554 int offset;
2555
2556 if (chip) {
2557 offset = pin - chip->chip.base;
2558
2559 samsung_gpio_lock(chip, flags);
2560 ret = samsung_gpio_do_getcfg(chip, offset);
2561 samsung_gpio_unlock(chip, flags);
2562 }
2563
2564 return ret;
2565 }
2566 EXPORT_SYMBOL(s3c_gpio_getcfg);
2567
2568 int s3c_gpio_setpull(unsigned int pin, samsung_gpio_pull_t pull)
2569 {
2570 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2571 unsigned long flags;
2572 int offset, ret;
2573
2574 if (!chip)
2575 return -EINVAL;
2576
2577 offset = pin - chip->chip.base;
2578
2579 samsung_gpio_lock(chip, flags);
2580 ret = samsung_gpio_do_setpull(chip, offset, pull);
2581 samsung_gpio_unlock(chip, flags);
2582
2583 return ret;
2584 }
2585 EXPORT_SYMBOL(s3c_gpio_setpull);
2586
2587 samsung_gpio_pull_t s3c_gpio_getpull(unsigned int pin)
2588 {
2589 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2590 unsigned long flags;
2591 int offset;
2592 u32 pup = 0;
2593
2594 if (chip) {
2595 offset = pin - chip->chip.base;
2596
2597 samsung_gpio_lock(chip, flags);
2598 pup = samsung_gpio_do_getpull(chip, offset);
2599 samsung_gpio_unlock(chip, flags);
2600 }
2601
2602 return (__force samsung_gpio_pull_t)pup;
2603 }
2604 EXPORT_SYMBOL(s3c_gpio_getpull);
2605
2606 /* gpiolib wrappers until these are totally eliminated */
2607
2608 void s3c2410_gpio_pullup(unsigned int pin, unsigned int to)
2609 {
2610 int ret;
2611
2612 WARN_ON(to); /* should be none of these left */
2613
2614 if (!to) {
2615 /* if pull is enabled, try first with up, and if that
2616 * fails, try using down */
2617
2618 ret = s3c_gpio_setpull(pin, S3C_GPIO_PULL_UP);
2619 if (ret)
2620 s3c_gpio_setpull(pin, S3C_GPIO_PULL_DOWN);
2621 } else {
2622 s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE);
2623 }
2624 }
2625 EXPORT_SYMBOL(s3c2410_gpio_pullup);
2626
2627 void s3c2410_gpio_setpin(unsigned int pin, unsigned int to)
2628 {
2629 /* do this via gpiolib until all users removed */
2630
2631 gpio_request(pin, "temporary");
2632 gpio_set_value(pin, to);
2633 gpio_free(pin);
2634 }
2635 EXPORT_SYMBOL(s3c2410_gpio_setpin);
2636
2637 unsigned int s3c2410_gpio_getpin(unsigned int pin)
2638 {
2639 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2640 unsigned long offs = pin - chip->chip.base;
2641
2642 return __raw_readl(chip->base + 0x04) & (1 << offs);
2643 }
2644 EXPORT_SYMBOL(s3c2410_gpio_getpin);
2645
2646 #ifdef CONFIG_S5P_GPIO_DRVSTR
2647 s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
2648 {
2649 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2650 unsigned int off;
2651 void __iomem *reg;
2652 int shift;
2653 u32 drvstr;
2654
2655 if (!chip)
2656 return -EINVAL;
2657
2658 off = pin - chip->chip.base;
2659 shift = off * 2;
2660 reg = chip->base + 0x0C;
2661
2662 drvstr = __raw_readl(reg);
2663 drvstr = drvstr >> shift;
2664 drvstr &= 0x3;
2665
2666 return (__force s5p_gpio_drvstr_t)drvstr;
2667 }
2668 EXPORT_SYMBOL(s5p_gpio_get_drvstr);
2669
2670 int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr)
2671 {
2672 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2673 unsigned int off;
2674 void __iomem *reg;
2675 int shift;
2676 u32 tmp;
2677
2678 if (!chip)
2679 return -EINVAL;
2680
2681 off = pin - chip->chip.base;
2682 shift = off * 2;
2683 reg = chip->base + 0x0C;
2684
2685 tmp = __raw_readl(reg);
2686 tmp &= ~(0x3 << shift);
2687 tmp |= drvstr << shift;
2688
2689 __raw_writel(tmp, reg);
2690
2691 return 0;
2692 }
2693 EXPORT_SYMBOL(s5p_gpio_set_drvstr);
2694 #endif /* CONFIG_S5P_GPIO_DRVSTR */
2695
2696 #ifdef CONFIG_PLAT_S3C24XX
2697 unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change)
2698 {
2699 unsigned long flags;
2700 unsigned long misccr;
2701
2702 local_irq_save(flags);
2703 misccr = __raw_readl(S3C24XX_MISCCR);
2704 misccr &= ~clear;
2705 misccr ^= change;
2706 __raw_writel(misccr, S3C24XX_MISCCR);
2707 local_irq_restore(flags);
2708
2709 return misccr;
2710 }
2711 EXPORT_SYMBOL(s3c2410_modify_misccr);
2712 #endif
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree