You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
65 lines
1.7 KiB
65 lines
1.7 KiB
/*
|
|
* Coldfire generic GPIO support
|
|
*
|
|
* (C) Copyright 2009, Steven King <sfking@fdwdc.com>
|
|
*
|
|
* 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; version 2 of the License.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
|
|
#include <asm/coldfire.h>
|
|
#include <asm/mcfsim.h>
|
|
#include <asm/mcfgpio.h>
|
|
|
|
static struct mcf_gpio_chip mcf_gpio_chips[] = {
|
|
{
|
|
.gpio_chip = {
|
|
.label = "GPIO0",
|
|
.request = mcf_gpio_request,
|
|
.free = mcf_gpio_free,
|
|
.direction_input = mcf_gpio_direction_input,
|
|
.direction_output = mcf_gpio_direction_output,
|
|
.get = mcf_gpio_get_value,
|
|
.set = mcf_gpio_set_value,
|
|
.ngpio = 32,
|
|
},
|
|
.pddr = MCFSIM2_GPIOENABLE,
|
|
.podr = MCFSIM2_GPIOWRITE,
|
|
.ppdr = MCFSIM2_GPIOREAD,
|
|
},
|
|
{
|
|
.gpio_chip = {
|
|
.label = "GPIO1",
|
|
.request = mcf_gpio_request,
|
|
.free = mcf_gpio_free,
|
|
.direction_input = mcf_gpio_direction_input,
|
|
.direction_output = mcf_gpio_direction_output,
|
|
.get = mcf_gpio_get_value,
|
|
.set = mcf_gpio_set_value,
|
|
.base = 32,
|
|
.ngpio = 32,
|
|
},
|
|
.pddr = MCFSIM2_GPIO1ENABLE,
|
|
.podr = MCFSIM2_GPIO1WRITE,
|
|
.ppdr = MCFSIM2_GPIO1READ,
|
|
},
|
|
};
|
|
|
|
static int __init mcf_gpio_init(void)
|
|
{
|
|
unsigned i = 0;
|
|
while (i < ARRAY_SIZE(mcf_gpio_chips))
|
|
(void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]);
|
|
return 0;
|
|
}
|
|
|
|
core_initcall(mcf_gpio_init);
|
|
|