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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2016 Marvell, Inc.
*
* 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 <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <arch/io.h>
#include <gpio.h>
#include <soc/addressmap.h>
#include <soc/gpio.h>
#include <soc/pinmux.h>
struct mvmap2315_gpio_regs *gpio_banks[] = {
(struct mvmap2315_gpio_regs *)MVMAP2315_GPIOF_BASE,
(struct mvmap2315_gpio_regs *)MVMAP2315_GPIOG_BASE,
(struct mvmap2315_gpio_regs *)MVMAP2315_GPIOH_BASE,
};
int gpio_get(gpio_t gpio)
{
return (read32(&gpio_banks[gpio.bank]->plr) >> gpio.idx) & 0x1;
}
void gpio_set(gpio_t gpio, int value)
{
if (value)
setbits_le32(&gpio_banks[gpio.bank]->psr, 1 << gpio.idx);
else
setbits_le32(&gpio_banks[gpio.bank]->pcr, 1 << gpio.idx);
}
void gpio_input_pulldown(gpio_t gpio)
{
set_pinmux(PINMUX(GET_GPIO_PAD(gpio), 0, 1, 0, 0, PULLDOWN));
clrbits_le32(&gpio_banks[gpio.bank]->pdr, 1 << gpio.idx);
}
void gpio_input_pullup(gpio_t gpio)
{
set_pinmux(PINMUX(GET_GPIO_PAD(gpio), 0, 1, 0, 0, PULLUP));
clrbits_le32(&gpio_banks[gpio.bank]->pdr, 1 << gpio.idx);
}
void gpio_input(gpio_t gpio)
{
set_pinmux(PINMUX(GET_GPIO_PAD(gpio), 0, 1, 0, 0, PULLNONE));
clrbits_le32(&gpio_banks[gpio.bank]->pdr, 1 << gpio.idx);
}
void gpio_output(gpio_t gpio, int value)
{
setbits_le32(&gpio_banks[gpio.bank]->pdr, 1 << gpio.idx);
if (value)
setbits_le32(&gpio_banks[gpio.bank]->psr, 1 << gpio.idx);
else
setbits_le32(&gpio_banks[gpio.bank]->pcr, 1 << gpio.idx);
}
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