| /* |
| * 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); |
| } |