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Diffstat (limited to 'arch/arm/plat-s3c24xx/gpiolib.c')
-rw-r--r--arch/arm/plat-s3c24xx/gpiolib.c259
1 files changed, 0 insertions, 259 deletions
diff --git a/arch/arm/plat-s3c24xx/gpiolib.c b/arch/arm/plat-s3c24xx/gpiolib.c
deleted file mode 100644
index 825d8d0c5ca..00000000000
--- a/arch/arm/plat-s3c24xx/gpiolib.c
+++ /dev/null
@@ -1,259 +0,0 @@
-/* linux/arch/arm/plat-s3c24xx/gpiolib.c
- *
- * Copyright (c) 2008 Simtec Electronics
- * http://armlinux.simtec.co.uk/
- * Ben Dooks <ben@simtec.co.uk>
- *
- * S3C24XX GPIOlib support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
-*/
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/io.h>
-#include <linux/gpio.h>
-
-#include <asm/hardware.h>
-#include <asm/irq.h>
-
-#include <asm/arch/regs-gpio.h>
-
-struct s3c24xx_gpio_chip {
- struct gpio_chip chip;
- void __iomem *base;
-};
-
-static inline struct s3c24xx_gpio_chip *to_s3c_chip(struct gpio_chip *gpc)
-{
- return container_of(gpc, struct s3c24xx_gpio_chip, chip);
-}
-
-/* these routines are exported for use by other parts of the platform
- * and system support, but are not intended to be used directly by the
- * drivers themsevles.
- */
-
-int s3c24xx_gpiolib_input(struct gpio_chip *chip, unsigned offset)
-{
- struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip);
- void __iomem *base = ourchip->base;
- unsigned long flags;
- unsigned long con;
-
- local_irq_save(flags);
-
- con = __raw_readl(base + 0x00);
- con &= ~(3 << (offset * 2));
- con |= (S3C2410_GPIO_OUTPUT & 0xf) << (offset * 2);
-
- __raw_writel(con, base + 0x00);
-
- local_irq_restore(flags);
- return 0;
-}
-
-int s3c24xx_gpiolib_output(struct gpio_chip *chip,
- unsigned offset, int value)
-{
- struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip);
- void __iomem *base = ourchip->base;
- unsigned long flags;
- unsigned long dat;
- unsigned long con;
-
- local_irq_save(flags);
-
- dat = __raw_readl(base + 0x04);
- dat &= ~(1 << offset);
- if (value)
- dat |= 1 << offset;
- __raw_writel(dat, base + 0x04);
-
- con = __raw_readl(base + 0x00);
- con &= ~(3 << (offset * 2));
- con |= (S3C2410_GPIO_OUTPUT & 0xf) << (offset * 2);
-
- __raw_writel(con, base + 0x00);
- __raw_writel(dat, base + 0x04);
-
- local_irq_restore(flags);
- return 0;
-}
-
-void s3c24xx_gpiolib_set(struct gpio_chip *chip, unsigned offset, int value)
-{
- struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip);
- void __iomem *base = ourchip->base;
- unsigned long flags;
- unsigned long dat;
-
- local_irq_save(flags);
-
- dat = __raw_readl(base + 0x04);
- dat &= ~(1 << offset);
- if (value)
- dat |= 1 << offset;
- __raw_writel(dat, base + 0x04);
-
- local_irq_restore(flags);
-}
-
-int s3c24xx_gpiolib_get(struct gpio_chip *chip, unsigned offset)
-{
- struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip);
- unsigned long val;
-
- val = __raw_readl(ourchip->base + 0x04);
- val >>= offset;
- val &= 1;
-
- return val;
-}
-
-static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
-{
- return -EINVAL;
-}
-
-static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
- unsigned offset, int value)
-{
- struct s3c24xx_gpio_chip *ourchip = to_s3c_chip(chip);
- void __iomem *base = ourchip->base;
- unsigned long flags;
- unsigned long dat;
- unsigned long con;
-
- local_irq_save(flags);
-
- con = __raw_readl(base + 0x00);
- dat = __raw_readl(base + 0x04);
-
- dat &= ~(1 << offset);
- if (value)
- dat |= 1 << offset;
-
- __raw_writel(dat, base + 0x04);
-
- con &= ~(1 << offset);
-
- __raw_writel(con, base + 0x00);
- __raw_writel(dat, base + 0x04);
-
- local_irq_restore(flags);
- return 0;
-}
-
-
-struct s3c24xx_gpio_chip gpios[] = {
- [0] = {
- .base = S3C24XX_GPIO_BASE(S3C2410_GPA0),
- .chip = {
- .base = S3C2410_GPA0,
- .owner = THIS_MODULE,
- .label = "GPIOA",
- .ngpio = 24,
- .direction_input = s3c24xx_gpiolib_banka_input,
- .direction_output = s3c24xx_gpiolib_banka_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
- },
- },
- [1] = {
- .base = S3C24XX_GPIO_BASE(S3C2410_GPB0),
- .chip = {
- .base = S3C2410_GPB0,
- .owner = THIS_MODULE,
- .label = "GPIOB",
- .ngpio = 16,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
- },
- },
- [2] = {
- .base = S3C24XX_GPIO_BASE(S3C2410_GPC0),
- .chip = {
- .base = S3C2410_GPC0,
- .owner = THIS_MODULE,
- .label = "GPIOC",
- .ngpio = 16,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
- },
- },
- [3] = {
- .base = S3C24XX_GPIO_BASE(S3C2410_GPD0),
- .chip = {
- .base = S3C2410_GPD0,
- .owner = THIS_MODULE,
- .label = "GPIOD",
- .ngpio = 16,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
- },
- },
- [4] = {
- .base = S3C24XX_GPIO_BASE(S3C2410_GPE0),
- .chip = {
- .base = S3C2410_GPE0,
- .label = "GPIOE",
- .owner = THIS_MODULE,
- .ngpio = 16,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
- },
- },
- [5] = {
- .base = S3C24XX_GPIO_BASE(S3C2410_GPF0),
- .chip = {
- .base = S3C2410_GPF0,
- .owner = THIS_MODULE,
- .label = "GPIOF",
- .ngpio = 8,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
- },
- },
- [6] = {
- .base = S3C24XX_GPIO_BASE(S3C2410_GPG0),
- .chip = {
- .base = S3C2410_GPG0,
- .owner = THIS_MODULE,
- .label = "GPIOG",
- .ngpio = 10,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
- },
- },
-};
-
-static __init int s3c24xx_gpiolib_init(void)
-{
- struct s3c24xx_gpio_chip *chip = gpios;
- int gpn;
-
- for (gpn = 0; gpn < ARRAY_SIZE(gpios); gpn++, chip++)
- gpiochip_add(&chip->chip);
-
- return 0;
-}
-
-arch_initcall(s3c24xx_gpiolib_init);
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