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Diffstat (limited to 'arch/arm/plat-samsung/gpio-config.c')
-rw-r--r--arch/arm/plat-samsung/gpio-config.c431
1 files changed, 0 insertions, 431 deletions
diff --git a/arch/arm/plat-samsung/gpio-config.c b/arch/arm/plat-samsung/gpio-config.c
deleted file mode 100644
index 1c0b0401594b..000000000000
--- a/arch/arm/plat-samsung/gpio-config.c
+++ /dev/null
@@ -1,431 +0,0 @@
-/* linux/arch/arm/plat-s3c/gpio-config.c
- *
- * Copyright 2008 Openmoko, Inc.
- * Copyright 2008-2010 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- * http://armlinux.simtec.co.uk/
- *
- * S3C series GPIO configuration core
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/gpio.h>
-#include <linux/io.h>
-
-#include <plat/gpio-core.h>
-#include <plat/gpio-cfg.h>
-#include <plat/gpio-cfg-helpers.h>
-
-int s3c_gpio_cfgpin(unsigned int pin, unsigned int config)
-{
- struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
- unsigned long flags;
- int offset;
- int ret;
-
- if (!chip)
- return -EINVAL;
-
- offset = pin - chip->chip.base;
-
- s3c_gpio_lock(chip, flags);
- ret = s3c_gpio_do_setcfg(chip, offset, config);
- s3c_gpio_unlock(chip, flags);
-
- return ret;
-}
-EXPORT_SYMBOL(s3c_gpio_cfgpin);
-
-int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr,
- unsigned int cfg)
-{
- int ret;
-
- for (; nr > 0; nr--, start++) {
- ret = s3c_gpio_cfgpin(start, cfg);
- if (ret != 0)
- return ret;
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(s3c_gpio_cfgpin_range);
-
-int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr,
- unsigned int cfg, s3c_gpio_pull_t pull)
-{
- int ret;
-
- for (; nr > 0; nr--, start++) {
- s3c_gpio_setpull(start, pull);
- ret = s3c_gpio_cfgpin(start, cfg);
- if (ret != 0)
- return ret;
- }
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(s3c_gpio_cfgall_range);
-
-unsigned s3c_gpio_getcfg(unsigned int pin)
-{
- struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
- unsigned long flags;
- unsigned ret = 0;
- int offset;
-
- if (chip) {
- offset = pin - chip->chip.base;
-
- s3c_gpio_lock(chip, flags);
- ret = s3c_gpio_do_getcfg(chip, offset);
- s3c_gpio_unlock(chip, flags);
- }
-
- return ret;
-}
-EXPORT_SYMBOL(s3c_gpio_getcfg);
-
-
-int s3c_gpio_setpull(unsigned int pin, s3c_gpio_pull_t pull)
-{
- struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
- unsigned long flags;
- int offset, ret;
-
- if (!chip)
- return -EINVAL;
-
- offset = pin - chip->chip.base;
-
- s3c_gpio_lock(chip, flags);
- ret = s3c_gpio_do_setpull(chip, offset, pull);
- s3c_gpio_unlock(chip, flags);
-
- return ret;
-}
-EXPORT_SYMBOL(s3c_gpio_setpull);
-
-s3c_gpio_pull_t s3c_gpio_getpull(unsigned int pin)
-{
- struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
- unsigned long flags;
- int offset;
- u32 pup = 0;
-
- if (chip) {
- offset = pin - chip->chip.base;
-
- s3c_gpio_lock(chip, flags);
- pup = s3c_gpio_do_getpull(chip, offset);
- s3c_gpio_unlock(chip, flags);
- }
-
- return (__force s3c_gpio_pull_t)pup;
-}
-EXPORT_SYMBOL(s3c_gpio_getpull);
-
-#ifdef CONFIG_S3C_GPIO_CFG_S3C24XX
-int s3c_gpio_setcfg_s3c24xx_a(struct s3c_gpio_chip *chip,
- unsigned int off, unsigned int cfg)
-{
- void __iomem *reg = chip->base;
- unsigned int shift = off;
- u32 con;
-
- if (s3c_gpio_is_cfg_special(cfg)) {
- cfg &= 0xf;
-
- /* Map output to 0, and SFN2 to 1 */
- cfg -= 1;
- if (cfg > 1)
- return -EINVAL;
-
- cfg <<= shift;
- }
-
- con = __raw_readl(reg);
- con &= ~(0x1 << shift);
- con |= cfg;
- __raw_writel(con, reg);
-
- return 0;
-}
-
-unsigned s3c_gpio_getcfg_s3c24xx_a(struct s3c_gpio_chip *chip,
- unsigned int off)
-{
- u32 con;
-
- con = __raw_readl(chip->base);
- con >>= off;
- con &= 1;
- con++;
-
- return S3C_GPIO_SFN(con);
-}
-
-int s3c_gpio_setcfg_s3c24xx(struct s3c_gpio_chip *chip,
- unsigned int off, unsigned int cfg)
-{
- void __iomem *reg = chip->base;
- unsigned int shift = off * 2;
- u32 con;
-
- if (s3c_gpio_is_cfg_special(cfg)) {
- cfg &= 0xf;
- if (cfg > 3)
- return -EINVAL;
-
- cfg <<= shift;
- }
-
- con = __raw_readl(reg);
- con &= ~(0x3 << shift);
- con |= cfg;
- __raw_writel(con, reg);
-
- return 0;
-}
-
-unsigned int s3c_gpio_getcfg_s3c24xx(struct s3c_gpio_chip *chip,
- unsigned int off)
-{
- u32 con;
-
- con = __raw_readl(chip->base);
- con >>= off * 2;
- con &= 3;
-
- /* this conversion works for IN and OUT as well as special mode */
- return S3C_GPIO_SPECIAL(con);
-}
-#endif
-
-#ifdef CONFIG_S3C_GPIO_CFG_S3C64XX
-int s3c_gpio_setcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip,
- unsigned int off, unsigned int cfg)
-{
- void __iomem *reg = chip->base;
- unsigned int shift = (off & 7) * 4;
- u32 con;
-
- if (off < 8 && chip->chip.ngpio > 8)
- reg -= 4;
-
- if (s3c_gpio_is_cfg_special(cfg)) {
- cfg &= 0xf;
- cfg <<= shift;
- }
-
- con = __raw_readl(reg);
- con &= ~(0xf << shift);
- con |= cfg;
- __raw_writel(con, reg);
-
- return 0;
-}
-
-unsigned s3c_gpio_getcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip,
- unsigned int off)
-{
- void __iomem *reg = chip->base;
- unsigned int shift = (off & 7) * 4;
- u32 con;
-
- if (off < 8 && chip->chip.ngpio > 8)
- reg -= 4;
-
- con = __raw_readl(reg);
- con >>= shift;
- con &= 0xf;
-
- /* this conversion works for IN and OUT as well as special mode */
- return S3C_GPIO_SPECIAL(con);
-}
-
-#endif /* CONFIG_S3C_GPIO_CFG_S3C64XX */
-
-#ifdef CONFIG_S3C_GPIO_PULL_UPDOWN
-int s3c_gpio_setpull_updown(struct s3c_gpio_chip *chip,
- unsigned int off, s3c_gpio_pull_t pull)
-{
- void __iomem *reg = chip->base + 0x08;
- int shift = off * 2;
- u32 pup;
-
- pup = __raw_readl(reg);
- pup &= ~(3 << shift);
- pup |= pull << shift;
- __raw_writel(pup, reg);
-
- return 0;
-}
-
-s3c_gpio_pull_t s3c_gpio_getpull_updown(struct s3c_gpio_chip *chip,
- unsigned int off)
-{
- void __iomem *reg = chip->base + 0x08;
- int shift = off * 2;
- u32 pup = __raw_readl(reg);
-
- pup >>= shift;
- pup &= 0x3;
- return (__force s3c_gpio_pull_t)pup;
-}
-
-#ifdef CONFIG_S3C_GPIO_PULL_S3C2443
-int s3c_gpio_setpull_s3c2443(struct s3c_gpio_chip *chip,
- unsigned int off, s3c_gpio_pull_t pull)
-{
- switch (pull) {
- case S3C_GPIO_PULL_NONE:
- pull = 0x01;
- break;
- case S3C_GPIO_PULL_UP:
- pull = 0x00;
- break;
- case S3C_GPIO_PULL_DOWN:
- pull = 0x02;
- break;
- }
- return s3c_gpio_setpull_updown(chip, off, pull);
-}
-
-s3c_gpio_pull_t s3c_gpio_getpull_s3c2443(struct s3c_gpio_chip *chip,
- unsigned int off)
-{
- s3c_gpio_pull_t pull;
-
- pull = s3c_gpio_getpull_updown(chip, off);
-
- switch (pull) {
- case 0x00:
- pull = S3C_GPIO_PULL_UP;
- break;
- case 0x01:
- case 0x03:
- pull = S3C_GPIO_PULL_NONE;
- break;
- case 0x02:
- pull = S3C_GPIO_PULL_DOWN;
- break;
- }
-
- return pull;
-}
-#endif
-#endif
-
-#if defined(CONFIG_S3C_GPIO_PULL_UP) || defined(CONFIG_S3C_GPIO_PULL_DOWN)
-static int s3c_gpio_setpull_1(struct s3c_gpio_chip *chip,
- unsigned int off, s3c_gpio_pull_t pull,
- s3c_gpio_pull_t updown)
-{
- void __iomem *reg = chip->base + 0x08;
- u32 pup = __raw_readl(reg);
-
- if (pull == updown)
- pup &= ~(1 << off);
- else if (pull == S3C_GPIO_PULL_NONE)
- pup |= (1 << off);
- else
- return -EINVAL;
-
- __raw_writel(pup, reg);
- return 0;
-}
-
-static s3c_gpio_pull_t s3c_gpio_getpull_1(struct s3c_gpio_chip *chip,
- unsigned int off, s3c_gpio_pull_t updown)
-{
- void __iomem *reg = chip->base + 0x08;
- u32 pup = __raw_readl(reg);
-
- pup &= (1 << off);
- return pup ? S3C_GPIO_PULL_NONE : updown;
-}
-#endif /* CONFIG_S3C_GPIO_PULL_UP || CONFIG_S3C_GPIO_PULL_DOWN */
-
-#ifdef CONFIG_S3C_GPIO_PULL_UP
-s3c_gpio_pull_t s3c_gpio_getpull_1up(struct s3c_gpio_chip *chip,
- unsigned int off)
-{
- return s3c_gpio_getpull_1(chip, off, S3C_GPIO_PULL_UP);
-}
-
-int s3c_gpio_setpull_1up(struct s3c_gpio_chip *chip,
- unsigned int off, s3c_gpio_pull_t pull)
-{
- return s3c_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_UP);
-}
-#endif /* CONFIG_S3C_GPIO_PULL_UP */
-
-#ifdef CONFIG_S3C_GPIO_PULL_DOWN
-s3c_gpio_pull_t s3c_gpio_getpull_1down(struct s3c_gpio_chip *chip,
- unsigned int off)
-{
- return s3c_gpio_getpull_1(chip, off, S3C_GPIO_PULL_DOWN);
-}
-
-int s3c_gpio_setpull_1down(struct s3c_gpio_chip *chip,
- unsigned int off, s3c_gpio_pull_t pull)
-{
- return s3c_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN);
-}
-#endif /* CONFIG_S3C_GPIO_PULL_DOWN */
-
-#ifdef CONFIG_S5P_GPIO_DRVSTR
-s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin)
-{
- struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
- unsigned int off;
- void __iomem *reg;
- int shift;
- u32 drvstr;
-
- if (!chip)
- return -EINVAL;
-
- off = pin - chip->chip.base;
- shift = off * 2;
- reg = chip->base + 0x0C;
-
- drvstr = __raw_readl(reg);
- drvstr = drvstr >> shift;
- drvstr &= 0x3;
-
- return (__force s5p_gpio_drvstr_t)drvstr;
-}
-EXPORT_SYMBOL(s5p_gpio_get_drvstr);
-
-int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr)
-{
- struct s3c_gpio_chip *chip = s3c_gpiolib_getchip(pin);
- unsigned int off;
- void __iomem *reg;
- int shift;
- u32 tmp;
-
- if (!chip)
- return -EINVAL;
-
- off = pin - chip->chip.base;
- shift = off * 2;
- reg = chip->base + 0x0C;
-
- tmp = __raw_readl(reg);
- tmp &= ~(0x3 << shift);
- tmp |= drvstr << shift;
-
- __raw_writel(tmp, reg);
-
- return 0;
-}
-EXPORT_SYMBOL(s5p_gpio_set_drvstr);
-#endif /* CONFIG_S5P_GPIO_DRVSTR */
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-13 14:32:56 +0000