From 716ca530e1c4515d8683c9d5be3d56b301758b66 Mon Sep 17 00:00:00 2001 From: James <> Date: Wed, 4 Nov 2015 11:49:21 +0000 Subject: trunk-47381 --- .../files/include/asm-mips/ar71xx_gpio.h | 65 ++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 package/boot/uboot-ar71xx/files/include/asm-mips/ar71xx_gpio.h (limited to 'package/boot/uboot-ar71xx/files/include/asm-mips/ar71xx_gpio.h') diff --git a/package/boot/uboot-ar71xx/files/include/asm-mips/ar71xx_gpio.h b/package/boot/uboot-ar71xx/files/include/asm-mips/ar71xx_gpio.h new file mode 100644 index 0000000..c92364b --- /dev/null +++ b/package/boot/uboot-ar71xx/files/include/asm-mips/ar71xx_gpio.h @@ -0,0 +1,65 @@ +/* + * (C) Copyright 2010 + * Michael Kurz . + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _AR71XX_GPIO_H +#define _AR71XX_GPIO_H + +#include +#include + +static inline void ar71xx_setpin(uint8_t pin, uint8_t state) +{ + uint32_t reg = readl(KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OUT)); + + if (state != 0) { + reg |= (1 << pin); + } else { + reg &= ~(1 << pin); + } + + writel(reg, KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OUT)); + readl(KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OUT)); +} + +static inline uint32_t ar71xx_getpin(uint8_t pin) +{ + uint32_t reg = readl(KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_IN)); + return (((reg & (1 << pin)) != 0) ? 1 : 0); +} + +static inline void ar71xx_setpindir(uint8_t pin, uint8_t direction) +{ + uint32_t reg = readl(KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OE)); + + if (direction != 0) { + reg |= (1 << pin); + } else { + reg &= ~(1 << pin); + } + + writel(reg, KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OE)); + readl(KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OE)); +} + + +#endif /* AR71XX_GPIO_H */ -- cgit v1.2.3