u-boot/arch/arm/include/asm/arch-spear/gpio.h
Stefan Roese 2cb06a4fda GPIO: Add SPEAr GPIO driver
Tested on x600 (SPEAr600).

Signed-off-by: Stefan Roese <sr@denx.de>
2012-07-07 14:07:42 +02:00

40 lines
1.2 KiB
C

/*
* Copyright (C) 2012 Stefan Roese <sr@denx.de>
*
* 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 __ASM_ARCH_SPEAR_GPIO_H
#define __ASM_ARCH_SPEAR_GPIO_H
enum gpio_direction {
GPIO_DIRECTION_IN,
GPIO_DIRECTION_OUT,
};
struct gpio_regs {
u32 gpiodata[0x100]; /* 0x000 ... 0x3fc */
u32 gpiodir; /* 0x400 */
};
#define SPEAR_GPIO_COUNT 8
#define DATA_REG_ADDR(gpio) (1 << (gpio + 2))
#endif /* __ASM_ARCH_SPEAR_GPIO_H */