2 * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
3 * http://www.samsung.com/
5 * Copyright 2008 Openmoko, Inc.
6 * Copyright 2008 Simtec Electronics
8 * http://armlinux.simtec.co.uk/
10 * SAMSUNG - GPIOlib support
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.
17 #include <linux/kernel.h>
18 #include <linux/irq.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>
30 #include <mach/hardware.h>
32 #include <mach/regs-clock.h>
33 #include <mach/regs-gpio.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>
43 #define gpio_dbg(x...) do { } while (0)
45 #define gpio_dbg(x...) printk(KERN_DEBUG x)
48 int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip,
49 unsigned int off, samsung_gpio_pull_t pull)
51 void __iomem *reg = chip->base + 0x08;
55 pup = __raw_readl(reg);
58 __raw_writel(pup, reg);
63 samsung_gpio_pull_t samsung_gpio_getpull_updown(struct samsung_gpio_chip *chip,
66 void __iomem *reg = chip->base + 0x08;
68 u32 pup = __raw_readl(reg);
73 return (__force samsung_gpio_pull_t)pup;
76 int s3c2443_gpio_setpull(struct samsung_gpio_chip *chip,
77 unsigned int off, samsung_gpio_pull_t pull)
80 case S3C_GPIO_PULL_NONE:
83 case S3C_GPIO_PULL_UP:
86 case S3C_GPIO_PULL_DOWN:
90 return samsung_gpio_setpull_updown(chip, off, pull);
93 samsung_gpio_pull_t s3c2443_gpio_getpull(struct samsung_gpio_chip *chip,
96 samsung_gpio_pull_t pull;
98 pull = samsung_gpio_getpull_updown(chip, off);
102 pull = S3C_GPIO_PULL_UP;
106 pull = S3C_GPIO_PULL_NONE;
109 pull = S3C_GPIO_PULL_DOWN;
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)
120 void __iomem *reg = chip->base + 0x08;
121 u32 pup = __raw_readl(reg);
125 else if (pull == S3C_GPIO_PULL_NONE)
130 __raw_writel(pup, reg);
134 static samsung_gpio_pull_t s3c24xx_gpio_getpull_1(struct samsung_gpio_chip *chip,
136 samsung_gpio_pull_t updown)
138 void __iomem *reg = chip->base + 0x08;
139 u32 pup = __raw_readl(reg);
142 return pup ? S3C_GPIO_PULL_NONE : updown;
145 samsung_gpio_pull_t s3c24xx_gpio_getpull_1up(struct samsung_gpio_chip *chip,
148 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_UP);
151 int s3c24xx_gpio_setpull_1up(struct samsung_gpio_chip *chip,
152 unsigned int off, samsung_gpio_pull_t pull)
154 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_UP);
157 samsung_gpio_pull_t s3c24xx_gpio_getpull_1down(struct samsung_gpio_chip *chip,
160 return s3c24xx_gpio_getpull_1(chip, off, S3C_GPIO_PULL_DOWN);
163 int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip,
164 unsigned int off, samsung_gpio_pull_t pull)
166 return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN);
169 static int exynos4_gpio_setpull(struct samsung_gpio_chip *chip,
170 unsigned int off, samsung_gpio_pull_t pull)
172 if (pull == S3C_GPIO_PULL_UP)
175 return samsung_gpio_setpull_updown(chip, off, pull);
178 static samsung_gpio_pull_t exynos4_gpio_getpull(struct samsung_gpio_chip *chip,
181 samsung_gpio_pull_t pull;
183 pull = samsung_gpio_getpull_updown(chip, off);
186 pull = S3C_GPIO_PULL_UP;
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.
197 * This helper deal with the GPIO cases where the control register
198 * has two bits of configuration per gpio, which have the following
202 * 1x = special function
205 static int samsung_gpio_setcfg_2bit(struct samsung_gpio_chip *chip,
206 unsigned int off, unsigned int cfg)
208 void __iomem *reg = chip->base;
209 unsigned int shift = off * 2;
212 if (samsung_gpio_is_cfg_special(cfg)) {
220 con = __raw_readl(reg);
221 con &= ~(0x3 << shift);
223 __raw_writel(con, reg);
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.
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.
238 static unsigned int samsung_gpio_getcfg_2bit(struct samsung_gpio_chip *chip,
243 con = __raw_readl(chip->base);
247 /* this conversion works for IN and OUT as well as special mode */
248 return S3C_GPIO_SPECIAL(con);
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.
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:
261 * others = Special functions (dependent on bank)
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
268 static int samsung_gpio_setcfg_4bit(struct samsung_gpio_chip *chip,
269 unsigned int off, unsigned int cfg)
271 void __iomem *reg = chip->base;
272 unsigned int shift = (off & 7) * 4;
275 if (off < 8 && chip->chip.ngpio > 8)
278 if (samsung_gpio_is_cfg_special(cfg)) {
283 con = __raw_readl(reg);
284 con &= ~(0xf << shift);
286 __raw_writel(con, reg);
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.
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().
300 * @sa samsung_gpio_getcfg_2bit
303 static unsigned samsung_gpio_getcfg_4bit(struct samsung_gpio_chip *chip,
306 void __iomem *reg = chip->base;
307 unsigned int shift = (off & 7) * 4;
310 if (off < 8 && chip->chip.ngpio > 8)
313 con = __raw_readl(reg);
317 /* this conversion works for IN and OUT as well as special mode */
318 return S3C_GPIO_SPECIAL(con);
321 #ifdef CONFIG_PLAT_S3C24XX
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.
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.
333 static int s3c24xx_gpio_setcfg_abank(struct samsung_gpio_chip *chip,
334 unsigned int off, unsigned int cfg)
336 void __iomem *reg = chip->base;
337 unsigned int shift = off;
340 if (samsung_gpio_is_cfg_special(cfg)) {
343 /* Map output to 0, and SFN2 to 1 */
351 con = __raw_readl(reg);
352 con &= ~(0x1 << shift);
354 __raw_writel(con, reg);
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.
364 * The reverse of s3c24xx_gpio_setcfg_abank() turning an GPIO into a usable
365 * GPIO configuration value.
367 * @sa samsung_gpio_getcfg_2bit
368 * @sa samsung_gpio_getcfg_4bit
371 static unsigned s3c24xx_gpio_getcfg_abank(struct samsung_gpio_chip *chip,
376 con = __raw_readl(chip->base);
381 return S3C_GPIO_SFN(con);
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)
389 void __iomem *reg = chip->base;
400 shift = (off & 7) * 4;
404 shift = ((off + 1) & 7) * 4;
407 shift = ((off + 1) & 7) * 4;
411 if (samsung_gpio_is_cfg_special(cfg)) {
416 con = __raw_readl(reg);
417 con &= ~(0xf << shift);
419 __raw_writel(con, reg);
425 static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg *chipcfg,
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;
440 struct samsung_gpio_cfg s3c24xx_gpiocfg_default = {
441 .set_config = samsung_gpio_setcfg_2bit,
442 .get_config = samsung_gpio_getcfg_2bit,
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,
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,
459 #if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
460 static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
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,
469 static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
480 .set_config = samsung_gpio_setcfg_2bit,
481 .get_config = samsung_gpio_getcfg_2bit,
484 .set_config = samsung_gpio_setcfg_2bit,
485 .get_config = samsung_gpio_getcfg_2bit,
488 .set_config = samsung_gpio_setcfg_2bit,
489 .get_config = samsung_gpio_getcfg_2bit,
491 .set_config = samsung_gpio_setcfg_2bit,
492 .get_config = samsung_gpio_getcfg_2bit,
494 .set_pull = exynos4_gpio_setpull,
495 .get_pull = exynos4_gpio_getpull,
498 .set_pull = exynos4_gpio_setpull,
499 .get_pull = exynos4_gpio_getpull,
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:
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
515 static int samsung_gpiolib_2bit_input(struct gpio_chip *chip, unsigned offset)
517 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
518 void __iomem *base = ourchip->base;
522 samsung_gpio_lock(ourchip, flags);
524 con = __raw_readl(base + 0x00);
525 con &= ~(3 << (offset * 2));
527 __raw_writel(con, base + 0x00);
529 samsung_gpio_unlock(ourchip, flags);
533 static int samsung_gpiolib_2bit_output(struct gpio_chip *chip,
534 unsigned offset, int value)
536 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
537 void __iomem *base = ourchip->base;
542 samsung_gpio_lock(ourchip, flags);
544 dat = __raw_readl(base + 0x04);
545 dat &= ~(1 << offset);
548 __raw_writel(dat, base + 0x04);
550 con = __raw_readl(base + 0x00);
551 con &= ~(3 << (offset * 2));
552 con |= 1 << (offset * 2);
554 __raw_writel(con, base + 0x00);
555 __raw_writel(dat, base + 0x04);
557 samsung_gpio_unlock(ourchip, flags);
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
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
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.
577 static int samsung_gpiolib_4bit_input(struct gpio_chip *chip,
580 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
581 void __iomem *base = ourchip->base;
584 con = __raw_readl(base + GPIOCON_OFF);
585 con &= ~(0xf << con_4bit_shift(offset));
586 __raw_writel(con, base + GPIOCON_OFF);
588 gpio_dbg("%s: %p: CON now %08lx\n", __func__, base, con);
593 static int samsung_gpiolib_4bit_output(struct gpio_chip *chip,
594 unsigned int offset, int value)
596 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
597 void __iomem *base = ourchip->base;
601 con = __raw_readl(base + GPIOCON_OFF);
602 con &= ~(0xf << con_4bit_shift(offset));
603 con |= 0x1 << con_4bit_shift(offset);
605 dat = __raw_readl(base + GPIODAT_OFF);
610 dat &= ~(1 << offset);
612 __raw_writel(dat, base + GPIODAT_OFF);
613 __raw_writel(con, base + GPIOCON_OFF);
614 __raw_writel(dat, base + GPIODAT_OFF);
616 gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
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.
626 * This case is the similar to the 4 bit case, but the registers are as
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
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.
643 static int samsung_gpiolib_4bit2_input(struct gpio_chip *chip,
646 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
647 void __iomem *base = ourchip->base;
648 void __iomem *regcon = base;
656 con = __raw_readl(regcon);
657 con &= ~(0xf << con_4bit_shift(offset));
658 __raw_writel(con, regcon);
660 gpio_dbg("%s: %p: CON %08lx\n", __func__, base, con);
665 static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip,
666 unsigned int offset, int value)
668 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
669 void __iomem *base = ourchip->base;
670 void __iomem *regcon = base;
673 unsigned con_offset = offset;
680 con = __raw_readl(regcon);
681 con &= ~(0xf << con_4bit_shift(con_offset));
682 con |= 0x1 << con_4bit_shift(con_offset);
684 dat = __raw_readl(base + GPIODAT_OFF);
689 dat &= ~(1 << offset);
691 __raw_writel(dat, base + GPIODAT_OFF);
692 __raw_writel(con, regcon);
693 __raw_writel(dat, base + GPIODAT_OFF);
695 gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat);
700 #ifdef CONFIG_PLAT_S3C24XX
701 /* The next set of routines are for the case of s3c24xx bank a */
703 static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
708 static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
709 unsigned offset, int value)
711 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
712 void __iomem *base = ourchip->base;
717 local_irq_save(flags);
719 con = __raw_readl(base + 0x00);
720 dat = __raw_readl(base + 0x04);
722 dat &= ~(1 << offset);
726 __raw_writel(dat, base + 0x04);
728 con &= ~(1 << offset);
730 __raw_writel(con, base + 0x00);
731 __raw_writel(dat, base + 0x04);
733 local_irq_restore(flags);
738 /* The next set of routines are for the case of s5p64x0 bank r */
740 static int s5p64x0_gpiolib_rbank_input(struct gpio_chip *chip,
743 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
744 void __iomem *base = ourchip->base;
745 void __iomem *regcon = base;
765 samsung_gpio_lock(ourchip, flags);
767 con = __raw_readl(regcon);
768 con &= ~(0xf << con_4bit_shift(offset));
769 __raw_writel(con, regcon);
771 samsung_gpio_unlock(ourchip, flags);
776 static int s5p64x0_gpiolib_rbank_output(struct gpio_chip *chip,
777 unsigned int offset, int value)
779 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
780 void __iomem *base = ourchip->base;
781 void __iomem *regcon = base;
785 unsigned con_offset = offset;
787 switch (con_offset) {
803 samsung_gpio_lock(ourchip, flags);
805 con = __raw_readl(regcon);
806 con &= ~(0xf << con_4bit_shift(con_offset));
807 con |= 0x1 << con_4bit_shift(con_offset);
809 dat = __raw_readl(base + GPIODAT_OFF);
813 dat &= ~(1 << offset);
815 __raw_writel(con, regcon);
816 __raw_writel(dat, base + GPIODAT_OFF);
818 samsung_gpio_unlock(ourchip, flags);
823 static void samsung_gpiolib_set(struct gpio_chip *chip,
824 unsigned offset, int value)
826 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
827 void __iomem *base = ourchip->base;
831 samsung_gpio_lock(ourchip, flags);
833 dat = __raw_readl(base + 0x04);
834 dat &= ~(1 << offset);
837 __raw_writel(dat, base + 0x04);
839 samsung_gpio_unlock(ourchip, flags);
842 static int samsung_gpiolib_get(struct gpio_chip *chip, unsigned offset)
844 struct samsung_gpio_chip *ourchip = to_samsung_gpio(chip);
847 val = __raw_readl(ourchip->base + 0x04);
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
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.
866 #ifdef CONFIG_S3C_GPIO_TRACK
867 struct samsung_gpio_chip *s3c_gpios[S3C_GPIO_END];
869 static __init void s3c_gpiolib_track(struct samsung_gpio_chip *chip)
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;
880 #endif /* CONFIG_S3C_GPIO_TRACK */
883 * samsung_gpiolib_add() - add the Samsung gpio_chip.
884 * @chip: The chip to register
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.
892 static void __init samsung_gpiolib_add(struct samsung_gpio_chip *chip)
894 struct gpio_chip *gc = &chip->chip;
901 spin_lock_init(&chip->lock);
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;
908 gc->set = samsung_gpiolib_set;
910 gc->get = samsung_gpiolib_get;
913 if (chip->pm != NULL) {
914 if (!chip->pm->save || !chip->pm->resume)
915 printk(KERN_ERR "gpio: %s has missing PM functions\n",
918 printk(KERN_ERR "gpio: %s has no PM function\n", gc->label);
921 /* gpiochip_add() prints own failure message on error. */
922 ret = gpiochip_add(gc);
924 s3c_gpiolib_track(chip);
927 static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
928 int nr_chips, void __iomem *base)
931 struct gpio_chip *gc = &chip->chip;
933 for (i = 0 ; i < nr_chips; i++, chip++) {
934 /* skip banks not present on SoC */
935 if (chip->chip.base >= S3C_GPIO_END)
939 chip->config = &s3c24xx_gpiocfg_default;
941 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
942 if ((base != NULL) && (chip->base == NULL))
943 chip->base = base + ((i) * 0x10);
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;
950 samsung_gpiolib_add(chip);
954 static void __init samsung_gpiolib_add_2bit_chips(struct samsung_gpio_chip *chip,
955 int nr_chips, void __iomem *base,
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;
965 chip->config = &samsung_gpio_cfgs[7];
967 chip->pm = __gpio_pm(&samsung_gpio_pm_2bit);
968 if ((base != NULL) && (chip->base == NULL))
969 chip->base = base + ((i) * offset);
971 samsung_gpiolib_add(chip);
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.
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:
984 * others = Special functions (dependent on bank)
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.
991 static void __init samsung_gpiolib_add_4bit_chips(struct samsung_gpio_chip *chip,
992 int nr_chips, void __iomem *base)
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;
1001 chip->config = &samsung_gpio_cfgs[2];
1003 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1004 if ((base != NULL) && (chip->base == NULL))
1005 chip->base = base + ((i) * 0x20);
1007 samsung_gpiolib_add(chip);
1011 static void __init samsung_gpiolib_add_4bit2_chips(struct samsung_gpio_chip *chip,
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;
1019 chip->config = &samsung_gpio_cfgs[2];
1021 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1023 samsung_gpiolib_add(chip);
1027 static void __init s5p64x0_gpiolib_add_rbank(struct samsung_gpio_chip *chip,
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;
1035 chip->pm = __gpio_pm(&samsung_gpio_pm_4bit);
1037 samsung_gpiolib_add(chip);
1041 int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset)
1043 struct samsung_gpio_chip *samsung_chip = container_of(chip, struct samsung_gpio_chip, chip);
1045 return samsung_chip->irq_base + offset;
1048 #ifdef CONFIG_PLAT_S3C24XX
1049 static int s3c24xx_gpiolib_fbank_to_irq(struct gpio_chip *chip, unsigned offset)
1052 return IRQ_EINT0 + offset;
1055 return IRQ_EINT4 + offset - 4;
1061 #ifdef CONFIG_PLAT_S3C64XX
1062 static int s3c64xx_gpiolib_mbank_to_irq(struct gpio_chip *chip, unsigned pin)
1064 return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO;
1067 static int s3c64xx_gpiolib_lbank_to_irq(struct gpio_chip *chip, unsigned pin)
1069 return pin >= 8 ? IRQ_EINT(16) + pin - 8 : -ENXIO;
1073 struct samsung_gpio_chip s3c24xx_gpios[] = {
1074 #ifdef CONFIG_PLAT_S3C24XX
1076 .config = &s3c24xx_gpiocfg_banka,
1078 .base = S3C2410_GPA(0),
1079 .owner = THIS_MODULE,
1082 .direction_input = s3c24xx_gpiolib_banka_input,
1083 .direction_output = s3c24xx_gpiolib_banka_output,
1087 .base = S3C2410_GPB(0),
1088 .owner = THIS_MODULE,
1094 .base = S3C2410_GPC(0),
1095 .owner = THIS_MODULE,
1101 .base = S3C2410_GPD(0),
1102 .owner = THIS_MODULE,
1108 .base = S3C2410_GPE(0),
1110 .owner = THIS_MODULE,
1115 .base = S3C2410_GPF(0),
1116 .owner = THIS_MODULE,
1119 .to_irq = s3c24xx_gpiolib_fbank_to_irq,
1122 .irq_base = IRQ_EINT8,
1124 .base = S3C2410_GPG(0),
1125 .owner = THIS_MODULE,
1128 .to_irq = samsung_gpiolib_to_irq,
1132 .base = S3C2410_GPH(0),
1133 .owner = THIS_MODULE,
1138 /* GPIOS for the S3C2443 and later devices. */
1140 .base = S3C2440_GPJCON,
1142 .base = S3C2410_GPJ(0),
1143 .owner = THIS_MODULE,
1148 .base = S3C2443_GPKCON,
1150 .base = S3C2410_GPK(0),
1151 .owner = THIS_MODULE,
1156 .base = S3C2443_GPLCON,
1158 .base = S3C2410_GPL(0),
1159 .owner = THIS_MODULE,
1164 .base = S3C2443_GPMCON,
1166 .base = S3C2410_GPM(0),
1167 .owner = THIS_MODULE,
1176 * GPIO bank summary:
1178 * Bank GPIOs Style SlpCon ExtInt Group
1184 * F 16 2Bit Yes 4 [1]
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
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
1201 static struct samsung_gpio_chip s3c64xx_gpios_4bit[] = {
1202 #ifdef CONFIG_PLAT_S3C64XX
1205 .base = S3C64XX_GPA(0),
1206 .ngpio = S3C64XX_GPIO_A_NR,
1211 .base = S3C64XX_GPB(0),
1212 .ngpio = S3C64XX_GPIO_B_NR,
1217 .base = S3C64XX_GPC(0),
1218 .ngpio = S3C64XX_GPIO_C_NR,
1223 .base = S3C64XX_GPD(0),
1224 .ngpio = S3C64XX_GPIO_D_NR,
1228 .config = &samsung_gpio_cfgs[0],
1230 .base = S3C64XX_GPE(0),
1231 .ngpio = S3C64XX_GPIO_E_NR,
1235 .base = S3C64XX_GPG_BASE,
1237 .base = S3C64XX_GPG(0),
1238 .ngpio = S3C64XX_GPIO_G_NR,
1242 .base = S3C64XX_GPM_BASE,
1243 .config = &samsung_gpio_cfgs[1],
1245 .base = S3C64XX_GPM(0),
1246 .ngpio = S3C64XX_GPIO_M_NR,
1248 .to_irq = s3c64xx_gpiolib_mbank_to_irq,
1254 static struct samsung_gpio_chip s3c64xx_gpios_4bit2[] = {
1255 #ifdef CONFIG_PLAT_S3C64XX
1257 .base = S3C64XX_GPH_BASE + 0x4,
1259 .base = S3C64XX_GPH(0),
1260 .ngpio = S3C64XX_GPIO_H_NR,
1264 .base = S3C64XX_GPK_BASE + 0x4,
1265 .config = &samsung_gpio_cfgs[0],
1267 .base = S3C64XX_GPK(0),
1268 .ngpio = S3C64XX_GPIO_K_NR,
1272 .base = S3C64XX_GPL_BASE + 0x4,
1273 .config = &samsung_gpio_cfgs[1],
1275 .base = S3C64XX_GPL(0),
1276 .ngpio = S3C64XX_GPIO_L_NR,
1278 .to_irq = s3c64xx_gpiolib_lbank_to_irq,
1284 static struct samsung_gpio_chip s3c64xx_gpios_2bit[] = {
1285 #ifdef CONFIG_PLAT_S3C64XX
1287 .base = S3C64XX_GPF_BASE,
1288 .config = &samsung_gpio_cfgs[6],
1290 .base = S3C64XX_GPF(0),
1291 .ngpio = S3C64XX_GPIO_F_NR,
1295 .config = &samsung_gpio_cfgs[7],
1297 .base = S3C64XX_GPI(0),
1298 .ngpio = S3C64XX_GPIO_I_NR,
1302 .config = &samsung_gpio_cfgs[7],
1304 .base = S3C64XX_GPJ(0),
1305 .ngpio = S3C64XX_GPIO_J_NR,
1309 .config = &samsung_gpio_cfgs[6],
1311 .base = S3C64XX_GPO(0),
1312 .ngpio = S3C64XX_GPIO_O_NR,
1316 .config = &samsung_gpio_cfgs[6],
1318 .base = S3C64XX_GPP(0),
1319 .ngpio = S3C64XX_GPIO_P_NR,
1323 .config = &samsung_gpio_cfgs[6],
1325 .base = S3C64XX_GPQ(0),
1326 .ngpio = S3C64XX_GPIO_Q_NR,
1330 .base = S3C64XX_GPN_BASE,
1331 .irq_base = IRQ_EINT(0),
1332 .config = &samsung_gpio_cfgs[5],
1334 .base = S3C64XX_GPN(0),
1335 .ngpio = S3C64XX_GPIO_N_NR,
1337 .to_irq = samsung_gpiolib_to_irq,
1344 * S5P6440 GPIO bank summary:
1346 * Bank GPIOs Style SlpCon ExtInt Group
1350 * F 2 2Bit Yes 4 [1]
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
1357 * R 15 4Bit[2] Yes 8
1360 static struct samsung_gpio_chip s5p6440_gpios_4bit[] = {
1361 #ifdef CONFIG_CPU_S5P6440
1364 .base = S5P6440_GPA(0),
1365 .ngpio = S5P6440_GPIO_A_NR,
1370 .base = S5P6440_GPB(0),
1371 .ngpio = S5P6440_GPIO_B_NR,
1376 .base = S5P6440_GPC(0),
1377 .ngpio = S5P6440_GPIO_C_NR,
1381 .base = S5P64X0_GPG_BASE,
1383 .base = S5P6440_GPG(0),
1384 .ngpio = S5P6440_GPIO_G_NR,
1391 static struct samsung_gpio_chip s5p6440_gpios_4bit2[] = {
1392 #ifdef CONFIG_CPU_S5P6440
1394 .base = S5P64X0_GPH_BASE + 0x4,
1396 .base = S5P6440_GPH(0),
1397 .ngpio = S5P6440_GPIO_H_NR,
1404 static struct samsung_gpio_chip s5p6440_gpios_rbank[] = {
1405 #ifdef CONFIG_CPU_S5P6440
1407 .base = S5P64X0_GPR_BASE + 0x4,
1408 .config = &s5p64x0_gpio_cfg_rbank,
1410 .base = S5P6440_GPR(0),
1411 .ngpio = S5P6440_GPIO_R_NR,
1418 static struct samsung_gpio_chip s5p6440_gpios_2bit[] = {
1419 #ifdef CONFIG_CPU_S5P6440
1421 .base = S5P64X0_GPF_BASE,
1422 .config = &samsung_gpio_cfgs[6],
1424 .base = S5P6440_GPF(0),
1425 .ngpio = S5P6440_GPIO_F_NR,
1429 .base = S5P64X0_GPI_BASE,
1430 .config = &samsung_gpio_cfgs[4],
1432 .base = S5P6440_GPI(0),
1433 .ngpio = S5P6440_GPIO_I_NR,
1437 .base = S5P64X0_GPJ_BASE,
1438 .config = &samsung_gpio_cfgs[4],
1440 .base = S5P6440_GPJ(0),
1441 .ngpio = S5P6440_GPIO_J_NR,
1445 .base = S5P64X0_GPN_BASE,
1446 .config = &samsung_gpio_cfgs[5],
1448 .base = S5P6440_GPN(0),
1449 .ngpio = S5P6440_GPIO_N_NR,
1453 .base = S5P64X0_GPP_BASE,
1454 .config = &samsung_gpio_cfgs[6],
1456 .base = S5P6440_GPP(0),
1457 .ngpio = S5P6440_GPIO_P_NR,
1465 * S5P6450 GPIO bank summary:
1467 * Bank GPIOs Style SlpCon ExtInt Group
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
1478 * N 16 2Bit No IRQ_EINT
1480 * Q 14 2Bit Yes None
1481 * R 15 4Bit[2] Yes None
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
1488 static struct samsung_gpio_chip s5p6450_gpios_4bit[] = {
1489 #ifdef CONFIG_CPU_S5P6450
1492 .base = S5P6450_GPA(0),
1493 .ngpio = S5P6450_GPIO_A_NR,
1498 .base = S5P6450_GPB(0),
1499 .ngpio = S5P6450_GPIO_B_NR,
1504 .base = S5P6450_GPC(0),
1505 .ngpio = S5P6450_GPIO_C_NR,
1510 .base = S5P6450_GPD(0),
1511 .ngpio = S5P6450_GPIO_D_NR,
1515 .base = S5P6450_GPK_BASE,
1517 .base = S5P6450_GPK(0),
1518 .ngpio = S5P6450_GPIO_K_NR,
1525 static struct samsung_gpio_chip s5p6450_gpios_4bit2[] = {
1526 #ifdef CONFIG_CPU_S5P6450
1528 .base = S5P64X0_GPG_BASE + 0x4,
1530 .base = S5P6450_GPG(0),
1531 .ngpio = S5P6450_GPIO_G_NR,
1535 .base = S5P64X0_GPH_BASE + 0x4,
1537 .base = S5P6450_GPH(0),
1538 .ngpio = S5P6450_GPIO_H_NR,
1545 static struct samsung_gpio_chip s5p6450_gpios_rbank[] = {
1546 #ifdef CONFIG_CPU_S5P6450
1548 .base = S5P64X0_GPR_BASE + 0x4,
1549 .config = &s5p64x0_gpio_cfg_rbank,
1551 .base = S5P6450_GPR(0),
1552 .ngpio = S5P6450_GPIO_R_NR,
1559 static struct samsung_gpio_chip s5p6450_gpios_2bit[] = {
1560 #ifdef CONFIG_CPU_S5P6450
1562 .base = S5P64X0_GPF_BASE,
1563 .config = &samsung_gpio_cfgs[6],
1565 .base = S5P6450_GPF(0),
1566 .ngpio = S5P6450_GPIO_F_NR,
1570 .base = S5P64X0_GPI_BASE,
1571 .config = &samsung_gpio_cfgs[4],
1573 .base = S5P6450_GPI(0),
1574 .ngpio = S5P6450_GPIO_I_NR,
1578 .base = S5P64X0_GPJ_BASE,
1579 .config = &samsung_gpio_cfgs[4],
1581 .base = S5P6450_GPJ(0),
1582 .ngpio = S5P6450_GPIO_J_NR,
1586 .base = S5P64X0_GPN_BASE,
1587 .config = &samsung_gpio_cfgs[5],
1589 .base = S5P6450_GPN(0),
1590 .ngpio = S5P6450_GPIO_N_NR,
1594 .base = S5P64X0_GPP_BASE,
1595 .config = &samsung_gpio_cfgs[6],
1597 .base = S5P6450_GPP(0),
1598 .ngpio = S5P6450_GPIO_P_NR,
1602 .base = S5P6450_GPQ_BASE,
1603 .config = &samsung_gpio_cfgs[5],
1605 .base = S5P6450_GPQ(0),
1606 .ngpio = S5P6450_GPIO_Q_NR,
1610 .base = S5P6450_GPS_BASE,
1611 .config = &samsung_gpio_cfgs[6],
1613 .base = S5P6450_GPS(0),
1614 .ngpio = S5P6450_GPIO_S_NR,
1622 * S5PC100 GPIO bank summary:
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
1660 static struct samsung_gpio_chip s5pc100_gpios_4bit[] = {
1661 #ifdef CONFIG_CPU_S5PC100
1664 .base = S5PC100_GPA0(0),
1665 .ngpio = S5PC100_GPIO_A0_NR,
1670 .base = S5PC100_GPA1(0),
1671 .ngpio = S5PC100_GPIO_A1_NR,
1676 .base = S5PC100_GPB(0),
1677 .ngpio = S5PC100_GPIO_B_NR,
1682 .base = S5PC100_GPC(0),
1683 .ngpio = S5PC100_GPIO_C_NR,
1688 .base = S5PC100_GPD(0),
1689 .ngpio = S5PC100_GPIO_D_NR,
1694 .base = S5PC100_GPE0(0),
1695 .ngpio = S5PC100_GPIO_E0_NR,
1700 .base = S5PC100_GPE1(0),
1701 .ngpio = S5PC100_GPIO_E1_NR,
1706 .base = S5PC100_GPF0(0),
1707 .ngpio = S5PC100_GPIO_F0_NR,
1712 .base = S5PC100_GPF1(0),
1713 .ngpio = S5PC100_GPIO_F1_NR,
1718 .base = S5PC100_GPF2(0),
1719 .ngpio = S5PC100_GPIO_F2_NR,
1724 .base = S5PC100_GPF3(0),
1725 .ngpio = S5PC100_GPIO_F3_NR,
1730 .base = S5PC100_GPG0(0),
1731 .ngpio = S5PC100_GPIO_G0_NR,
1736 .base = S5PC100_GPG1(0),
1737 .ngpio = S5PC100_GPIO_G1_NR,
1742 .base = S5PC100_GPG2(0),
1743 .ngpio = S5PC100_GPIO_G2_NR,
1748 .base = S5PC100_GPG3(0),
1749 .ngpio = S5PC100_GPIO_G3_NR,
1754 .base = S5PC100_GPI(0),
1755 .ngpio = S5PC100_GPIO_I_NR,
1760 .base = S5PC100_GPJ0(0),
1761 .ngpio = S5PC100_GPIO_J0_NR,
1766 .base = S5PC100_GPJ1(0),
1767 .ngpio = S5PC100_GPIO_J1_NR,
1772 .base = S5PC100_GPJ2(0),
1773 .ngpio = S5PC100_GPIO_J2_NR,
1778 .base = S5PC100_GPJ3(0),
1779 .ngpio = S5PC100_GPIO_J3_NR,
1784 .base = S5PC100_GPJ4(0),
1785 .ngpio = S5PC100_GPIO_J4_NR,
1790 .base = S5PC100_GPK0(0),
1791 .ngpio = S5PC100_GPIO_K0_NR,
1796 .base = S5PC100_GPK1(0),
1797 .ngpio = S5PC100_GPIO_K1_NR,
1802 .base = S5PC100_GPK2(0),
1803 .ngpio = S5PC100_GPIO_K2_NR,
1808 .base = S5PC100_GPK3(0),
1809 .ngpio = S5PC100_GPIO_K3_NR,
1814 .base = S5PC100_GPL0(0),
1815 .ngpio = S5PC100_GPIO_L0_NR,
1820 .base = S5PC100_GPL1(0),
1821 .ngpio = S5PC100_GPIO_L1_NR,
1826 .base = S5PC100_GPL2(0),
1827 .ngpio = S5PC100_GPIO_L2_NR,
1832 .base = S5PC100_GPL3(0),
1833 .ngpio = S5PC100_GPIO_L3_NR,
1838 .base = S5PC100_GPL4(0),
1839 .ngpio = S5PC100_GPIO_L4_NR,
1843 .base = (S5P_VA_GPIO + 0xC00),
1844 .irq_base = IRQ_EINT(0),
1846 .base = S5PC100_GPH0(0),
1847 .ngpio = S5PC100_GPIO_H0_NR,
1849 .to_irq = samsung_gpiolib_to_irq,
1852 .base = (S5P_VA_GPIO + 0xC20),
1853 .irq_base = IRQ_EINT(8),
1855 .base = S5PC100_GPH1(0),
1856 .ngpio = S5PC100_GPIO_H1_NR,
1858 .to_irq = samsung_gpiolib_to_irq,
1861 .base = (S5P_VA_GPIO + 0xC40),
1862 .irq_base = IRQ_EINT(16),
1864 .base = S5PC100_GPH2(0),
1865 .ngpio = S5PC100_GPIO_H2_NR,
1867 .to_irq = samsung_gpiolib_to_irq,
1870 .base = (S5P_VA_GPIO + 0xC60),
1871 .irq_base = IRQ_EINT(24),
1873 .base = S5PC100_GPH3(0),
1874 .ngpio = S5PC100_GPIO_H3_NR,
1876 .to_irq = samsung_gpiolib_to_irq,
1883 * Followings are the gpio banks in S5PV210/S5PC110
1885 * The 'config' member when left to NULL, is initialized to the default
1886 * structure samsung_gpio_cfgs[3] in the init function below.
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.
1893 static struct samsung_gpio_chip s5pv210_gpios_4bit[] = {
1894 #ifdef CONFIG_CPU_S5PV210
1897 .base = S5PV210_GPA0(0),
1898 .ngpio = S5PV210_GPIO_A0_NR,
1903 .base = S5PV210_GPA1(0),
1904 .ngpio = S5PV210_GPIO_A1_NR,
1909 .base = S5PV210_GPB(0),
1910 .ngpio = S5PV210_GPIO_B_NR,
1915 .base = S5PV210_GPC0(0),
1916 .ngpio = S5PV210_GPIO_C0_NR,
1921 .base = S5PV210_GPC1(0),
1922 .ngpio = S5PV210_GPIO_C1_NR,
1927 .base = S5PV210_GPD0(0),
1928 .ngpio = S5PV210_GPIO_D0_NR,
1933 .base = S5PV210_GPD1(0),
1934 .ngpio = S5PV210_GPIO_D1_NR,
1939 .base = S5PV210_GPE0(0),
1940 .ngpio = S5PV210_GPIO_E0_NR,
1945 .base = S5PV210_GPE1(0),
1946 .ngpio = S5PV210_GPIO_E1_NR,
1951 .base = S5PV210_GPF0(0),
1952 .ngpio = S5PV210_GPIO_F0_NR,
1957 .base = S5PV210_GPF1(0),
1958 .ngpio = S5PV210_GPIO_F1_NR,
1963 .base = S5PV210_GPF2(0),
1964 .ngpio = S5PV210_GPIO_F2_NR,
1969 .base = S5PV210_GPF3(0),
1970 .ngpio = S5PV210_GPIO_F3_NR,
1975 .base = S5PV210_GPG0(0),
1976 .ngpio = S5PV210_GPIO_G0_NR,
1981 .base = S5PV210_GPG1(0),
1982 .ngpio = S5PV210_GPIO_G1_NR,
1987 .base = S5PV210_GPG2(0),
1988 .ngpio = S5PV210_GPIO_G2_NR,
1993 .base = S5PV210_GPG3(0),
1994 .ngpio = S5PV210_GPIO_G3_NR,
1999 .base = S5PV210_GPI(0),
2000 .ngpio = S5PV210_GPIO_I_NR,
2005 .base = S5PV210_GPJ0(0),
2006 .ngpio = S5PV210_GPIO_J0_NR,
2011 .base = S5PV210_GPJ1(0),
2012 .ngpio = S5PV210_GPIO_J1_NR,
2017 .base = S5PV210_GPJ2(0),
2018 .ngpio = S5PV210_GPIO_J2_NR,
2023 .base = S5PV210_GPJ3(0),
2024 .ngpio = S5PV210_GPIO_J3_NR,
2029 .base = S5PV210_GPJ4(0),
2030 .ngpio = S5PV210_GPIO_J4_NR,
2035 .base = S5PV210_MP01(0),
2036 .ngpio = S5PV210_GPIO_MP01_NR,
2041 .base = S5PV210_MP02(0),
2042 .ngpio = S5PV210_GPIO_MP02_NR,
2047 .base = S5PV210_MP03(0),
2048 .ngpio = S5PV210_GPIO_MP03_NR,
2053 .base = S5PV210_MP04(0),
2054 .ngpio = S5PV210_GPIO_MP04_NR,
2059 .base = S5PV210_MP05(0),
2060 .ngpio = S5PV210_GPIO_MP05_NR,
2064 .base = (S5P_VA_GPIO + 0xC00),
2065 .irq_base = IRQ_EINT(0),
2067 .base = S5PV210_GPH0(0),
2068 .ngpio = S5PV210_GPIO_H0_NR,
2070 .to_irq = samsung_gpiolib_to_irq,
2073 .base = (S5P_VA_GPIO + 0xC20),
2074 .irq_base = IRQ_EINT(8),
2076 .base = S5PV210_GPH1(0),
2077 .ngpio = S5PV210_GPIO_H1_NR,
2079 .to_irq = samsung_gpiolib_to_irq,
2082 .base = (S5P_VA_GPIO + 0xC40),
2083 .irq_base = IRQ_EINT(16),
2085 .base = S5PV210_GPH2(0),
2086 .ngpio = S5PV210_GPIO_H2_NR,
2088 .to_irq = samsung_gpiolib_to_irq,
2091 .base = (S5P_VA_GPIO + 0xC60),
2092 .irq_base = IRQ_EINT(24),
2094 .base = S5PV210_GPH3(0),
2095 .ngpio = S5PV210_GPIO_H3_NR,
2097 .to_irq = samsung_gpiolib_to_irq,
2104 * Followings are the gpio banks in EXYNOS4210
2106 * The 'config' member when left to NULL, is initialized to the default
2107 * structure samsung_gpio_cfgs[3] in the init function below.
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.
2114 static struct samsung_gpio_chip exynos4_gpios_1[] = {
2115 #ifdef CONFIG_ARCH_EXYNOS4
2118 .base = EXYNOS4_GPA0(0),
2119 .ngpio = EXYNOS4_GPIO_A0_NR,
2124 .base = EXYNOS4_GPA1(0),
2125 .ngpio = EXYNOS4_GPIO_A1_NR,
2130 .base = EXYNOS4_GPB(0),
2131 .ngpio = EXYNOS4_GPIO_B_NR,
2136 .base = EXYNOS4_GPC0(0),
2137 .ngpio = EXYNOS4_GPIO_C0_NR,
2142 .base = EXYNOS4_GPC1(0),
2143 .ngpio = EXYNOS4_GPIO_C1_NR,
2148 .base = EXYNOS4_GPD0(0),
2149 .ngpio = EXYNOS4_GPIO_D0_NR,
2154 .base = EXYNOS4_GPD1(0),
2155 .ngpio = EXYNOS4_GPIO_D1_NR,
2160 .base = EXYNOS4_GPE0(0),
2161 .ngpio = EXYNOS4_GPIO_E0_NR,
2166 .base = EXYNOS4_GPE1(0),
2167 .ngpio = EXYNOS4_GPIO_E1_NR,
2172 .base = EXYNOS4_GPE2(0),
2173 .ngpio = EXYNOS4_GPIO_E2_NR,
2178 .base = EXYNOS4_GPE3(0),
2179 .ngpio = EXYNOS4_GPIO_E3_NR,
2184 .base = EXYNOS4_GPE4(0),
2185 .ngpio = EXYNOS4_GPIO_E4_NR,
2190 .base = EXYNOS4_GPF0(0),
2191 .ngpio = EXYNOS4_GPIO_F0_NR,
2196 .base = EXYNOS4_GPF1(0),
2197 .ngpio = EXYNOS4_GPIO_F1_NR,
2202 .base = EXYNOS4_GPF2(0),
2203 .ngpio = EXYNOS4_GPIO_F2_NR,
2208 .base = EXYNOS4_GPF3(0),
2209 .ngpio = EXYNOS4_GPIO_F3_NR,
2216 static struct samsung_gpio_chip exynos4_gpios_2[] = {
2217 #ifdef CONFIG_ARCH_EXYNOS4
2220 .base = EXYNOS4_GPJ0(0),
2221 .ngpio = EXYNOS4_GPIO_J0_NR,
2226 .base = EXYNOS4_GPJ1(0),
2227 .ngpio = EXYNOS4_GPIO_J1_NR,
2232 .base = EXYNOS4_GPK0(0),
2233 .ngpio = EXYNOS4_GPIO_K0_NR,
2238 .base = EXYNOS4_GPK1(0),
2239 .ngpio = EXYNOS4_GPIO_K1_NR,
2244 .base = EXYNOS4_GPK2(0),
2245 .ngpio = EXYNOS4_GPIO_K2_NR,
2250 .base = EXYNOS4_GPK3(0),
2251 .ngpio = EXYNOS4_GPIO_K3_NR,
2256 .base = EXYNOS4_GPL0(0),
2257 .ngpio = EXYNOS4_GPIO_L0_NR,
2262 .base = EXYNOS4_GPL1(0),
2263 .ngpio = EXYNOS4_GPIO_L1_NR,
2268 .base = EXYNOS4_GPL2(0),
2269 .ngpio = EXYNOS4_GPIO_L2_NR,
2273 .config = &samsung_gpio_cfgs[8],
2275 .base = EXYNOS4_GPY0(0),
2276 .ngpio = EXYNOS4_GPIO_Y0_NR,
2280 .config = &samsung_gpio_cfgs[8],
2282 .base = EXYNOS4_GPY1(0),
2283 .ngpio = EXYNOS4_GPIO_Y1_NR,
2287 .config = &samsung_gpio_cfgs[8],
2289 .base = EXYNOS4_GPY2(0),
2290 .ngpio = EXYNOS4_GPIO_Y2_NR,
2294 .config = &samsung_gpio_cfgs[8],
2296 .base = EXYNOS4_GPY3(0),
2297 .ngpio = EXYNOS4_GPIO_Y3_NR,
2301 .config = &samsung_gpio_cfgs[8],
2303 .base = EXYNOS4_GPY4(0),
2304 .ngpio = EXYNOS4_GPIO_Y4_NR,
2308 .config = &samsung_gpio_cfgs[8],
2310 .base = EXYNOS4_GPY5(0),
2311 .ngpio = EXYNOS4_GPIO_Y5_NR,
2315 .config = &samsung_gpio_cfgs[8],
2317 .base = EXYNOS4_GPY6(0),
2318 .ngpio = EXYNOS4_GPIO_Y6_NR,
2322 .base = (S5P_VA_GPIO2 + 0xC00),
2323 .config = &samsung_gpio_cfgs[9],
2324 .irq_base = IRQ_EINT(0),
2326 .base = EXYNOS4_GPX0(0),
2327 .ngpio = EXYNOS4_GPIO_X0_NR,
2329 .to_irq = samsung_gpiolib_to_irq,
2332 .base = (S5P_VA_GPIO2 + 0xC20),
2333 .config = &samsung_gpio_cfgs[9],
2334 .irq_base = IRQ_EINT(8),
2336 .base = EXYNOS4_GPX1(0),
2337 .ngpio = EXYNOS4_GPIO_X1_NR,
2339 .to_irq = samsung_gpiolib_to_irq,
2342 .base = (S5P_VA_GPIO2 + 0xC40),
2343 .config = &samsung_gpio_cfgs[9],
2344 .irq_base = IRQ_EINT(16),
2346 .base = EXYNOS4_GPX2(0),
2347 .ngpio = EXYNOS4_GPIO_X2_NR,
2349 .to_irq = samsung_gpiolib_to_irq,
2352 .base = (S5P_VA_GPIO2 + 0xC60),
2353 .config = &samsung_gpio_cfgs[9],
2354 .irq_base = IRQ_EINT(24),
2356 .base = EXYNOS4_GPX3(0),
2357 .ngpio = EXYNOS4_GPIO_X3_NR,
2359 .to_irq = samsung_gpiolib_to_irq,
2365 static struct samsung_gpio_chip exynos4_gpios_3[] = {
2366 #ifdef CONFIG_ARCH_EXYNOS4
2369 .base = EXYNOS4_GPZ(0),
2370 .ngpio = EXYNOS4_GPIO_Z_NR,
2377 /* TODO: cleanup soc_is_* */
2378 static __init int samsung_gpiolib_init(void)
2380 struct samsung_gpio_chip *chip;
2384 samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
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),
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()) {
2418 chip = s5pc100_gpios_4bit;
2419 nr_chips = ARRAY_SIZE(s5pc100_gpios_4bit);
2421 for (i = 0; i < nr_chips; i++, chip++) {
2422 if (!chip->config) {
2423 chip->config = &samsung_gpio_cfgs[3];
2424 chip->group = group++;
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);
2431 } else if (soc_is_s5pv210()) {
2433 chip = s5pv210_gpios_4bit;
2434 nr_chips = ARRAY_SIZE(s5pv210_gpios_4bit);
2436 for (i = 0; i < nr_chips; i++, chip++) {
2437 if (!chip->config) {
2438 chip->config = &samsung_gpio_cfgs[3];
2439 chip->group = group++;
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);
2446 } else if (soc_is_exynos4210()) {
2450 chip = exynos4_gpios_1;
2451 nr_chips = ARRAY_SIZE(exynos4_gpios_1);
2453 for (i = 0; i < nr_chips; i++, chip++) {
2454 if (!chip->config) {
2455 chip->config = &exynos4_gpio_cfg;
2456 chip->group = group++;
2459 samsung_gpiolib_add_4bit_chips(exynos4_gpios_1, nr_chips, S5P_VA_GPIO1);
2462 chip = exynos4_gpios_2;
2463 nr_chips = ARRAY_SIZE(exynos4_gpios_2);
2465 for (i = 0; i < nr_chips; i++, chip++) {
2466 if (!chip->config) {
2467 chip->config = &exynos4_gpio_cfg;
2468 chip->group = group++;
2471 samsung_gpiolib_add_4bit_chips(exynos4_gpios_2, nr_chips, S5P_VA_GPIO2);
2474 chip = exynos4_gpios_3;
2475 nr_chips = ARRAY_SIZE(exynos4_gpios_3);
2477 for (i = 0; i < nr_chips; i++, chip++) {
2478 if (!chip->config) {
2479 chip->config = &exynos4_gpio_cfg;
2480 chip->group = group++;
2483 samsung_gpiolib_add_4bit_chips(exynos4_gpios_3, nr_chips, S5P_VA_GPIO3);
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);
2490 WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n");
2496 core_initcall(samsung_gpiolib_init);
2498 int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
2500 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2501 unsigned long flags;
2508 offset = pin - chip->chip.base;
2510 samsung_gpio_lock(chip, flags);
2511 ret = samsung_gpio_do_setcfg(chip, offset, config);
2512 samsung_gpio_unlock(chip, flags);
2516 EXPORT_SYMBOL(s3c_gpio_cfgpin);
2518 int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr,
2523 for (; nr > 0; nr--, start++) {
2524 ret = s3c_gpio_cfgpin(start, cfg);
2531 EXPORT_SYMBOL_GPL(s3c_gpio_cfgpin_range);
2533 int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr,
2534 unsigned int cfg, samsung_gpio_pull_t pull)
2538 for (; nr > 0; nr--, start++) {
2539 s3c_gpio_setpull(start, pull);
2540 ret = s3c_gpio_cfgpin(start, cfg);
2547 EXPORT_SYMBOL_GPL(s3c_gpio_cfgall_range);
2549 unsigned s3c_gpio_getcfg(unsigned int pin)
2551 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2552 unsigned long flags;
2557 offset = pin - chip->chip.base;
2559 samsung_gpio_lock(chip, flags);
2560 ret = samsung_gpio_do_getcfg(chip, offset);
2561 samsung_gpio_unlock(chip, flags);
2566 EXPORT_SYMBOL(s3c_gpio_getcfg);
2568 int s3c_gpio_setpull(unsigned int pin, samsung_gpio_pull_t pull)
2570 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2571 unsigned long flags;
2577 offset = pin - chip->chip.base;
2579 samsung_gpio_lock(chip, flags);
2580 ret = samsung_gpio_do_setpull(chip, offset, pull);
2581 samsung_gpio_unlock(chip, flags);
2585 EXPORT_SYMBOL(s3c_gpio_setpull);
2587 samsung_gpio_pull_t s3c_gpio_getpull(unsigned int pin)
2589 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2590 unsigned long flags;
2595 offset = pin - chip->chip.base;
2597 samsung_gpio_lock(chip, flags);
2598 pup = samsung_gpio_do_getpull(chip, offset);
2599 samsung_gpio_unlock(chip, flags);
2602 return (__force samsung_gpio_pull_t)pup;
2604 EXPORT_SYMBOL(s3c_gpio_getpull);
2606 /* gpiolib wrappers until these are totally eliminated */
2608 void s3c2410_gpio_pullup(unsigned int pin, unsigned int to)
2612 WARN_ON(to); /* should be none of these left */
2615 /* if pull is enabled, try first with up, and if that
2616 * fails, try using down */
2618 ret = s3c_gpio_setpull(pin, S3C_GPIO_PULL_UP);
2620 s3c_gpio_setpull(pin, S3C_GPIO_PULL_DOWN);
2622 s3c_gpio_setpull(pin, S3C_GPIO_PULL_NONE);
2625 EXPORT_SYMBOL(s3c2410_gpio_pullup);
2627 void s3c2410_gpio_setpin(unsigned int pin, unsigned int to)
2629 /* do this via gpiolib until all users removed */
2631 gpio_request(pin, "temporary");
2632 gpio_set_value(pin, to);
2635 EXPORT_SYMBOL(s3c2410_gpio_setpin);
2637 unsigned int s3c2410_gpio_getpin(unsigned int pin)
2639 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2640 unsigned long offs = pin - chip->chip.base;
2642 return __raw_readl(chip->base + 0x04) & (1 << offs);
2644 EXPORT_SYMBOL(s3c2410_gpio_getpin);
2646 #ifdef CONFIG_S5P_GPIO_DRVSTR
2647 s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
2649 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2658 off = pin - chip->chip.base;
2660 reg = chip->base + 0x0C;
2662 drvstr = __raw_readl(reg);
2663 drvstr = drvstr >> shift;
2666 return (__force s5p_gpio_drvstr_t)drvstr;
2668 EXPORT_SYMBOL(s5p_gpio_get_drvstr);
2670 int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr)
2672 struct samsung_gpio_chip *chip = samsung_gpiolib_getchip(pin);
2681 off = pin - chip->chip.base;
2683 reg = chip->base + 0x0C;
2685 tmp = __raw_readl(reg);
2686 tmp &= ~(0x3 << shift);
2687 tmp |= drvstr << shift;
2689 __raw_writel(tmp, reg);
2693 EXPORT_SYMBOL(s5p_gpio_set_drvstr);
2694 #endif /* CONFIG_S5P_GPIO_DRVSTR */
2696 #ifdef CONFIG_PLAT_S3C24XX
2697 unsigned int s3c2410_modify_misccr(unsigned int clear, unsigned int change)
2699 unsigned long flags;
2700 unsigned long misccr;
2702 local_irq_save(flags);
2703 misccr = __raw_readl(S3C24XX_MISCCR);
2706 __raw_writel(misccr, S3C24XX_MISCCR);
2707 local_irq_restore(flags);
2711 EXPORT_SYMBOL(s3c2410_modify_misccr);