3 * Michael Kurz <michi.kurz@googlemail.com>.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 #ifndef _AR71XX_GPIO_H
25 #define _AR71XX_GPIO_H
28 #include <asm/ar71xx.h>
30 static inline void ar71xx_setpin(uint8_t pin, uint8_t state)
32 uint32_t reg = readl(KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OUT));
40 writel(reg, KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OUT));
41 readl(KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OUT));
44 static inline uint32_t ar71xx_getpin(uint8_t pin)
46 uint32_t reg = readl(KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_IN));
47 return (((reg & (1 << pin)) != 0) ? 1 : 0);
50 static inline void ar71xx_setpindir(uint8_t pin, uint8_t direction)
52 uint32_t reg = readl(KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OE));
60 writel(reg, KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OE));
61 readl(KSEG1ADDR(AR71XX_GPIO_BASE + GPIO_REG_OE));
65 #endif /* AR71XX_GPIO_H */