1 /* 2 * Copyright (C) 2011 3 * Stefano Babic, DENX Software Engineering, <sbabic@denx.de> 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 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. 12 * 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. 17 * 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, 21 * MA 02111-1307 USA 22 */ 23 24 25 #ifndef __ASM_ARCH_MX25_GPIO_H 26 #define __ASM_ARCH_MX25_GPIO_H 27 28 /* Converts a GPIO port number and the internal bit position 29 * to the GPIO number 30 */ 31 #define MXC_GPIO_PORT_TO_NUM(port, bit) (((port - 1) << 5) + (bit & 0x1f)) 32 33 /* GPIO registers */ 34 struct gpio_regs { 35 u32 gpio_dr; /* data */ 36 u32 gpio_dir; /* direction */ 37 u32 psr; /* pad satus */ 38 u32 icr1; /* interrupt config 1 */ 39 u32 icr2; /* interrupt config 2 */ 40 u32 imr; /* interrupt mask */ 41 u32 isr; /* interrupt status */ 42 u32 edge_sel; /* edge select */ 43 }; 44 45 #endif 46