+++ /dev/null
-#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 */
+++ /dev/null
-/*
- * 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);
+++ /dev/null
-/*
- * 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);
projects / platform / kernel / linux-starfive.git / commitdiff