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Diffstat (limited to 'arch/mips/pmcs-msp71xx/gpio_extended.c')
-rw-r--r--arch/mips/pmcs-msp71xx/gpio_extended.c146
1 files changed, 0 insertions, 146 deletions
diff --git a/arch/mips/pmcs-msp71xx/gpio_extended.c b/arch/mips/pmcs-msp71xx/gpio_extended.c
deleted file mode 100644
index 2a99f360fae4..000000000000
--- a/arch/mips/pmcs-msp71xx/gpio_extended.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * Generic PMC MSP71xx EXTENDED (EXD) GPIO handling. The extended gpio is
- * a set of hardware registers that have no need for explicit locking as
- * it is handled by unique method of writing individual set/clr bits.
- *
- * 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.
- *
- * @author Patrick Glass <patrickglass@gmail.com>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/gpio.h>
-#include <linux/io.h>
-
-#define MSP71XX_DATA_OFFSET(gpio) (2 * (gpio))
-#define MSP71XX_READ_OFFSET(gpio) (MSP71XX_DATA_OFFSET(gpio) + 1)
-#define MSP71XX_CFG_OUT_OFFSET(gpio) (MSP71XX_DATA_OFFSET(gpio) + 16)
-#define MSP71XX_CFG_IN_OFFSET(gpio) (MSP71XX_CFG_OUT_OFFSET(gpio) + 1)
-
-#define MSP71XX_EXD_GPIO_BASE 0x0BC000000L
-
-#define to_msp71xx_exd_gpio_chip(c) \
- container_of(c, struct msp71xx_exd_gpio_chip, chip)
-
-/*
- * struct msp71xx_exd_gpio_chip - container for gpio chip and registers
- * @chip: chip structure for the specified gpio bank
- * @reg: register for control and data of gpio pin
- */
-struct msp71xx_exd_gpio_chip {
- struct gpio_chip chip;
- void __iomem *reg;
-};
-
-/*
- * msp71xx_exd_gpio_get() - return the chip's gpio value
- * @chip: chip structure which controls the specified gpio
- * @offset: gpio whose value will be returned
- *
- * It will return 0 if gpio value is low and other if high.
- */
-static int msp71xx_exd_gpio_get(struct gpio_chip *chip, unsigned offset)
-{
- struct msp71xx_exd_gpio_chip *msp71xx_chip =
- to_msp71xx_exd_gpio_chip(chip);
- const unsigned bit = MSP71XX_READ_OFFSET(offset);
-
- return __raw_readl(msp71xx_chip->reg) & (1 << bit);
-}
-
-/*
- * msp71xx_exd_gpio_set() - set the output value for the gpio
- * @chip: chip structure who controls the specified gpio
- * @offset: gpio whose value will be assigned
- * @value: logic level to assign to the gpio initially
- *
- * This will set the gpio bit specified to the desired value. It will set the
- * gpio pin low if value is 0 otherwise it will be high.
- */
-static void msp71xx_exd_gpio_set(struct gpio_chip *chip,
- unsigned offset, int value)
-{
- struct msp71xx_exd_gpio_chip *msp71xx_chip =
- to_msp71xx_exd_gpio_chip(chip);
- const unsigned bit = MSP71XX_DATA_OFFSET(offset);
-
- __raw_writel(1 << (bit + (value ? 1 : 0)), msp71xx_chip->reg);
-}
-
-/*
- * msp71xx_exd_direction_output() - declare the direction mode for a gpio
- * @chip: chip structure which controls the specified gpio
- * @offset: gpio whose value will be assigned
- * @value: logic level to assign to the gpio initially
- *
- * This call will set the mode for the @gpio to output. It will set the
- * gpio pin low if value is 0 otherwise it will be high.
- */
-static int msp71xx_exd_direction_output(struct gpio_chip *chip,
- unsigned offset, int value)
-{
- struct msp71xx_exd_gpio_chip *msp71xx_chip =
- to_msp71xx_exd_gpio_chip(chip);
-
- msp71xx_exd_gpio_set(chip, offset, value);
- __raw_writel(1 << MSP71XX_CFG_OUT_OFFSET(offset), msp71xx_chip->reg);
- return 0;
-}
-
-/*
- * msp71xx_exd_direction_input() - declare the direction mode for a gpio
- * @chip: chip structure which controls the specified gpio
- * @offset: gpio whose to which the value will be assigned
- *
- * This call will set the mode for the @gpio to input.
- */
-static int msp71xx_exd_direction_input(struct gpio_chip *chip, unsigned offset)
-{
- struct msp71xx_exd_gpio_chip *msp71xx_chip =
- to_msp71xx_exd_gpio_chip(chip);
-
- __raw_writel(1 << MSP71XX_CFG_IN_OFFSET(offset), msp71xx_chip->reg);
- return 0;
-}
-
-#define MSP71XX_EXD_GPIO_BANK(name, exd_reg, base_gpio, num_gpio) \
-{ \
- .chip = { \
- .label = name, \
- .direction_input = msp71xx_exd_direction_input, \
- .direction_output = msp71xx_exd_direction_output, \
- .get = msp71xx_exd_gpio_get, \
- .set = msp71xx_exd_gpio_set, \
- .base = base_gpio, \
- .ngpio = num_gpio, \
- }, \
- .reg = (void __iomem *)(MSP71XX_EXD_GPIO_BASE + exd_reg), \
-}
-
-/*
- * struct msp71xx_exd_gpio_banks[] - container array of gpio banks
- * @chip: chip structure for the specified gpio bank
- * @reg: register for reading and writing the gpio pin value
- *
- * This array structure defines the extended gpio banks for the
- * PMC MIPS Processor. We specify the bank name, the data/config
- * register,the base starting gpio number, and the number of
- * gpios exposed by the bank of gpios.
- */
-static struct msp71xx_exd_gpio_chip msp71xx_exd_gpio_banks[] = {
-
- MSP71XX_EXD_GPIO_BANK("GPIO_23_16", 0x188, 16, 8),
- MSP71XX_EXD_GPIO_BANK("GPIO_27_24", 0x18C, 24, 4),
-};
-
-void __init msp71xx_init_gpio_extended(void)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(msp71xx_exd_gpio_banks); i++)
- gpiochip_add(&msp71xx_exd_gpio_banks[i].chip);
-}