x86, rdc321x: remove/move leftover files

#ifndef _ASM_X86_MACH_RDC321X_GPIO_H

#define _ASM_X86_MACH_RDC321X_GPIO_H

#include <linux/kernel.h>

extern int rdc_gpio_get_value(unsigned gpio);

extern void rdc_gpio_set_value(unsigned gpio, int value);

extern int rdc_gpio_direction_input(unsigned gpio);

extern int rdc_gpio_direction_output(unsigned gpio, int value);

extern int rdc_gpio_request(unsigned gpio, const char *label);

extern void rdc_gpio_free(unsigned gpio);

extern void __init rdc321x_gpio_setup(void);

/* Wrappers for the arch-neutral GPIO API */

static inline int gpio_request(unsigned gpio, const char *label)

{

	return rdc_gpio_request(gpio, label);

}

static inline void gpio_free(unsigned gpio)

{

	might_sleep();

	rdc_gpio_free(gpio);

}

static inline int gpio_direction_input(unsigned gpio)

{

	return rdc_gpio_direction_input(gpio);

}

static inline int gpio_direction_output(unsigned gpio, int value)

{

	return rdc_gpio_direction_output(gpio, value);

}

static inline int gpio_get_value(unsigned gpio)

{

	return rdc_gpio_get_value(gpio);

}

static inline void gpio_set_value(unsigned gpio, int value)

{

	rdc_gpio_set_value(gpio, value);

}

static inline int gpio_to_irq(unsigned gpio)

{

	return gpio;

}

static inline int irq_to_gpio(unsigned irq)

{

	return irq;

}

/* For cansleep */

#include <asm-generic/gpio.h>

#endif /* _ASM_X86_MACH_RDC321X_GPIO_H */

#

# Makefile for the RDC321x specific parts of the kernel

#

obj-$(CONFIG_X86_RDC321X)        := gpio.o platform.o

/*

 *  GPIO support for RDC SoC R3210/R8610

 *

 *  Copyright (C) 2007, Florian Fainelli <florian@openwrt.org>

 *  Copyright (C) 2008, Volker Weiss <dev@tintuc.de>

 *

 * 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, or

 * (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 *

 */

#include <linux/spinlock.h>

#include <linux/io.h>

#include <linux/types.h>

#include <linux/module.h>

#include <asm/gpio.h>

#include <asm/mach-rdc321x/rdc321x_defs.h>

/* spin lock to protect our private copy of GPIO data register plus

   the access to PCI conf registers. */

static DEFINE_SPINLOCK(gpio_lock);

/* copy of GPIO data registers */

static u32 gpio_data_reg1;

static u32 gpio_data_reg2;

static u32 gpio_request_data[2];

static inline void rdc321x_conf_write(unsigned addr, u32 value)

{

	outl((1 << 31) | (7 << 11) | addr, RDC3210_CFGREG_ADDR);

	outl(value, RDC3210_CFGREG_DATA);

}

static inline void rdc321x_conf_or(unsigned addr, u32 value)

{

	outl((1 << 31) | (7 << 11) | addr, RDC3210_CFGREG_ADDR);

	value |= inl(RDC3210_CFGREG_DATA);

	outl(value, RDC3210_CFGREG_DATA);

}

static inline u32 rdc321x_conf_read(unsigned addr)

{

	outl((1 << 31) | (7 << 11) | addr, RDC3210_CFGREG_ADDR);

	return inl(RDC3210_CFGREG_DATA);

}

/* configure pin as GPIO */

static void rdc321x_configure_gpio(unsigned gpio)

{

	unsigned long flags;

	spin_lock_irqsave(&gpio_lock, flags);

	rdc321x_conf_or(gpio < 32

		? RDC321X_GPIO_CTRL_REG1 : RDC321X_GPIO_CTRL_REG2,

		1 << (gpio & 0x1f));

	spin_unlock_irqrestore(&gpio_lock, flags);

}

/* initially setup the 2 copies of the gpio data registers.

   This function must be called by the platform setup code. */

void __init rdc321x_gpio_setup()

{

	/* this might not be, what others (BIOS, bootloader, etc.)

	   wrote to these registers before, but it's a good guess. Still

	   better than just using 0xffffffff. */

	gpio_data_reg1 = rdc321x_conf_read(RDC321X_GPIO_DATA_REG1);

	gpio_data_reg2 = rdc321x_conf_read(RDC321X_GPIO_DATA_REG2);

}

/* determine, if gpio number is valid */

static inline int rdc321x_is_gpio(unsigned gpio)

{

	return gpio <= RDC321X_MAX_GPIO;

}

/* request GPIO */

int rdc_gpio_request(unsigned gpio, const char *label)

{

	unsigned long flags;

	if (!rdc321x_is_gpio(gpio))

		return -EINVAL;

	spin_lock_irqsave(&gpio_lock, flags);

	if (gpio_request_data[(gpio & 0x20) ? 1 : 0] & (1 << (gpio & 0x1f)))

		goto inuse;

	gpio_request_data[(gpio & 0x20) ? 1 : 0] |= (1 << (gpio & 0x1f));

	spin_unlock_irqrestore(&gpio_lock, flags);

	return 0;

inuse:

	spin_unlock_irqrestore(&gpio_lock, flags);

	return -EINVAL;

}

EXPORT_SYMBOL(rdc_gpio_request);

/* release previously-claimed GPIO */

void rdc_gpio_free(unsigned gpio)

{

	unsigned long flags;

	if (!rdc321x_is_gpio(gpio))

		return;

	spin_lock_irqsave(&gpio_lock, flags);

	gpio_request_data[(gpio & 0x20) ? 1 : 0] &= ~(1 << (gpio & 0x1f));

	spin_unlock_irqrestore(&gpio_lock, flags);

}

EXPORT_SYMBOL(rdc_gpio_free);

/* read GPIO pin */

int rdc_gpio_get_value(unsigned gpio)

{

	u32 reg;

	unsigned long flags;

	spin_lock_irqsave(&gpio_lock, flags);

	reg = rdc321x_conf_read(gpio < 32

		? RDC321X_GPIO_DATA_REG1 : RDC321X_GPIO_DATA_REG2);

	spin_unlock_irqrestore(&gpio_lock, flags);

	return (1 << (gpio & 0x1f)) & reg ? 1 : 0;

}

EXPORT_SYMBOL(rdc_gpio_get_value);

/* set GPIO pin to value */

void rdc_gpio_set_value(unsigned gpio, int value)

{

	unsigned long flags;

	u32 reg;

	reg = 1 << (gpio & 0x1f);

	if (gpio < 32) {

		spin_lock_irqsave(&gpio_lock, flags);

		if (value)

			gpio_data_reg1 |= reg;

		else

			gpio_data_reg1 &= ~reg;

		rdc321x_conf_write(RDC321X_GPIO_DATA_REG1, gpio_data_reg1);

		spin_unlock_irqrestore(&gpio_lock, flags);

	} else {

		spin_lock_irqsave(&gpio_lock, flags);

		if (value)

			gpio_data_reg2 |= reg;

		else

			gpio_data_reg2 &= ~reg;

		rdc321x_conf_write(RDC321X_GPIO_DATA_REG2, gpio_data_reg2);

		spin_unlock_irqrestore(&gpio_lock, flags);

	}

}

EXPORT_SYMBOL(rdc_gpio_set_value);

/* configure GPIO pin as input */

int rdc_gpio_direction_input(unsigned gpio)

{

	if (!rdc321x_is_gpio(gpio))

		return -EINVAL;

	rdc321x_configure_gpio(gpio);

	return 0;

}

EXPORT_SYMBOL(rdc_gpio_direction_input);

/* configure GPIO pin as output and set value */

int rdc_gpio_direction_output(unsigned gpio, int value)

{

	if (!rdc321x_is_gpio(gpio))

		return -EINVAL;

	gpio_set_value(gpio, value);

	rdc321x_configure_gpio(gpio);

	return 0;

}

EXPORT_SYMBOL(rdc_gpio_direction_output);

/*

 *  Generic RDC321x platform devices

 *

 *  Copyright (C) 2007 Florian Fainelli <florian@openwrt.org>

 *

 *  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, or (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 *  You should have received a copy of the GNU General Public License

 *  along with this program; if not, write to the

 *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 *  Boston, MA  02110-1301, USA.

 *

 */

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/list.h>

#include <linux/device.h>

#include <linux/platform_device.h>

#include <linux/leds.h>

#include <asm/gpio.h>

/* LEDS */

static struct gpio_led default_leds[] = {

	{ .name = "rdc:dmz", .gpio = 1, },

};

static struct gpio_led_platform_data rdc321x_led_data = {

	.num_leds = ARRAY_SIZE(default_leds),

	.leds = default_leds,

};

static struct platform_device rdc321x_leds = {

	.name = "leds-gpio",

	.id = -1,

	.dev = {

		.platform_data = &rdc321x_led_data,

	}

};

/* Watchdog */

static struct platform_device rdc321x_wdt = {

	.name = "rdc321x-wdt",

	.id = -1,

	.num_resources = 0,

};

static struct platform_device *rdc321x_devs[] = {

	&rdc321x_leds,

	&rdc321x_wdt

};

static int __init rdc_board_setup(void)

{

	rdc321x_gpio_setup();

	return platform_add_devices(rdc321x_devs, ARRAY_SIZE(rdc321x_devs));

}

arch_initcall(rdc_board_setup);