/* * Structures and registers for GPIO access in the Nomadik SoC * * Code ported from Nomadik GPIO driver in ST-Ericsson Linux kernel code. * The purpose is that GPIO config found in kernel should work by simply * copy-paste it to U-boot. * * Ported to U-boot by: * Copyright (C) 2010 Joakim Axelsson * Copyright (C) 2008 STMicroelectronics * Author: Prafulla WADASKAR * Copyright (C) 2009 Alessandro Rubini * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __DB8500_GPIO_H__ #define __DB8500_GPIO_H__ /* Alternate functions: function C is set in hw by setting both A and B */ enum db8500_gpio_alt { DB8500_GPIO_ALT_GPIO = 0, DB8500_GPIO_ALT_A = 1, DB8500_GPIO_ALT_B = 2, DB8500_GPIO_ALT_C = (DB8500_GPIO_ALT_A | DB8500_GPIO_ALT_B) }; enum db8500_gpio_pull { DB8500_GPIO_PULL_NONE, DB8500_GPIO_PULL_UP, DB8500_GPIO_PULL_DOWN }; void db8500_gpio_set_pull(unsigned gpio, enum db8500_gpio_pull pull); void db8500_gpio_make_input(unsigned gpio); int db8500_gpio_get_input(unsigned gpio); void db8500_gpio_make_output(unsigned gpio, int val); void db8500_gpio_set_output(unsigned gpio, int val); #endif /* __DB8500_GPIO_H__ */