82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/*
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* Coldfire generic GPIO support
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*
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* (C) Copyright 2009, Steven King <sfking@fdwdc.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <asm/coldfire.h>
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#include <asm/mcfsim.h>
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#include <asm/mcfgpio.h>
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static struct mcf_gpio_chip mcf_gpio_chips[] = {
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{
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.gpio_chip = {
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.label = "PA",
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.request = mcf_gpio_request,
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.free = mcf_gpio_free,
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.direction_input = mcf_gpio_direction_input,
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.direction_output = mcf_gpio_direction_output,
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.get = mcf_gpio_get_value,
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.set = mcf_gpio_set_value,
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.ngpio = 16,
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},
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.pddr = (void __iomem *) MCFSIM_PADDR,
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.podr = (void __iomem *) MCFSIM_PADAT,
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.ppdr = (void __iomem *) MCFSIM_PADAT,
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},
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{
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.gpio_chip = {
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.label = "PB",
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.request = mcf_gpio_request,
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.free = mcf_gpio_free,
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.direction_input = mcf_gpio_direction_input,
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.direction_output = mcf_gpio_direction_output,
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.get = mcf_gpio_get_value,
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.set = mcf_gpio_set_value,
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.base = 16,
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.ngpio = 16,
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},
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.pddr = (void __iomem *) MCFSIM_PBDDR,
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.podr = (void __iomem *) MCFSIM_PBDAT,
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.ppdr = (void __iomem *) MCFSIM_PBDAT,
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},
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{
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.gpio_chip = {
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.label = "PC",
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.request = mcf_gpio_request,
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.free = mcf_gpio_free,
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.direction_input = mcf_gpio_direction_input,
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.direction_output = mcf_gpio_direction_output,
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.get = mcf_gpio_get_value,
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.set = mcf_gpio_set_value,
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.base = 32,
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.ngpio = 16,
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},
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.pddr = (void __iomem *) MCFSIM_PCDDR,
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.podr = (void __iomem *) MCFSIM_PCDAT,
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.ppdr = (void __iomem *) MCFSIM_PCDAT,
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},
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};
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static int __init mcf_gpio_init(void)
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{
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unsigned i = 0;
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while (i < ARRAY_SIZE(mcf_gpio_chips))
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(void)gpiochip_add((struct gpio_chip *)&mcf_gpio_chips[i++]);
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return 0;
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}
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core_initcall(mcf_gpio_init);
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