From 6c2c97ff988701fa5d2d7dee89cb3d246f5c7432 Mon Sep 17 00:00:00 2001 From: Per Forlin Date: Mon, 16 Jan 2012 22:31:46 -0700 Subject: snowball: igloo copy port of gpio driver support Signed-off-by: Per Forlin --- include/db8500_gpio.h | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 include/db8500_gpio.h (limited to 'include/db8500_gpio.h') diff --git a/include/db8500_gpio.h b/include/db8500_gpio.h new file mode 100644 index 000000000..67d7e4d56 --- /dev/null +++ b/include/db8500_gpio.h @@ -0,0 +1,43 @@ +/* + * 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__ */ + -- cgit v1.2.3