From 2cb06a4fda4e7a88c734adaec9eeb5059e50f76b Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Tue, 14 Feb 2012 14:01:36 +0100 Subject: GPIO: Add SPEAr GPIO driver Tested on x600 (SPEAr600). Signed-off-by: Stefan Roese --- arch/arm/include/asm/arch-spear/gpio.h | 40 ++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 arch/arm/include/asm/arch-spear/gpio.h (limited to 'arch') diff --git a/arch/arm/include/asm/arch-spear/gpio.h b/arch/arm/include/asm/arch-spear/gpio.h new file mode 100644 index 0000000..c3697de --- /dev/null +++ b/arch/arm/include/asm/arch-spear/gpio.h @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2012 Stefan Roese + * + * 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 */ -- cgit v1.1