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/*
* Copyright (C) 2012 Vikram Narayananan
* <vikram186@gmail.com>
*
* 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.
*/
#ifndef _BCM2835_GPIO_H_
#define _BCM2835_GPIO_H_
#define BCM2835_GPIO_BASE 0x20200000
#define BCM2835_GPIO_COUNT 54
#define BCM2835_GPIO_FSEL_MASK 0x7
#define BCM2835_GPIO_INPUT 0x0
#define BCM2835_GPIO_OUTPUT 0x1
#define BCM2835_GPIO_ALT0 0x4
#define BCM2835_GPIO_ALT1 0x5
#define BCM2835_GPIO_ALT2 0x6
#define BCM2835_GPIO_ALT3 0x7
#define BCM2835_GPIO_ALT4 0x3
#define BCM2835_GPIO_ALT5 0x2
#define BCM2835_GPIO_COMMON_BANK(gpio) ((gpio < 32) ? 0 : 1)
#define BCM2835_GPIO_COMMON_SHIFT(gpio) (gpio & 0x1f)
#define BCM2835_GPIO_FSEL_BANK(gpio) (gpio / 10)
#define BCM2835_GPIO_FSEL_SHIFT(gpio) ((gpio % 10) * 3)
struct bcm2835_gpio_regs {
u32 gpfsel[6];
u32 reserved1;
u32 gpset[2];
u32 reserved2;
u32 gpclr[2];
u32 reserved3;
u32 gplev[2];
u32 reserved4;
u32 gpeds[2];
u32 reserved5;
u32 gpren[2];
u32 reserved6;
u32 gpfen[2];
u32 reserved7;
u32 gphen[2];
u32 reserved8;
u32 gplen[2];
u32 reserved9;
u32 gparen[2];
u32 reserved10;
u32 gppud;
u32 gppudclk[2];
};
#endif /* _BCM2835_GPIO_H_ */
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