1 /* 2 * (C) Copyright 2011 3 * eInfochips Ltd. <www.einfochips.com> 4 * Written-by: Ajay Bhargav <ajay.bhargav@einfochips.com> 5 * 6 * (C) Copyright 2010 7 * Marvell Semiconductor <www.marvell.com> 8 * 9 * See file CREDITS for list of people who contributed to this 10 * project. 11 * 12 * This program is free software; you can redistribute it and/or 13 * modify it under the terms of the GNU General Public License as 14 * published by the Free Software Foundation; either version 2 of 15 * the License, or (at your option) any later version. 16 * 17 * This program is distributed in the hope that it will be useful, 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 * GNU General Public License for more details. 21 * 22 * You should have received a copy of the GNU General Public License 23 * along with this program; if not, write to the Free Software 24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 25 * MA 02110-1301 USA 26 */ 27 28 #ifndef _ASM_ARCH_GPIO_H 29 #define _ASM_ARCH_GPIO_H 30 31 #include <asm/types.h> 32 #include <asm/arch/armada100.h> 33 34 #define GPIO_HIGH 1 35 #define GPIO_LOW 0 36 37 #define GPIO_TO_REG(gp) (gp >> 5) 38 #define GPIO_TO_BIT(gp) (1 << (gp & 0x1F)) 39 #define GPIO_VAL(gp, val) ((val >> (gp & 0x1F)) & 0x01) 40 41 static inline void *get_gpio_base(int bank) 42 { 43 const unsigned int offset[4] = {0, 4, 8, 0x100}; 44 /* gpio register bank offset - refer Appendix A.36 */ 45 return (struct gpio_reg *)(ARMD1_GPIO_BASE + offset[bank]); 46 } 47 48 #endif /* _ASM_ARCH_GPIO_H */ 49