| Mathieu J. Poirier | 4a036fe | 2012-08-03 11:05:12 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Structures and registers for GPIO access in the Nomadik SoC |
| 3 | * |
| 4 | * Code ported from Nomadik GPIO driver in ST-Ericsson Linux kernel code. |
| 5 | * The purpose is that GPIO config found in kernel should work by simply |
| 6 | * copy-paste it to U-boot. |
| 7 | * |
| 8 | * Ported to U-boot by: |
| 9 | * Copyright (C) 2010 Joakim Axelsson <joakim.axelsson AT stericsson.com> |
| 10 | * Copyright (C) 2008 STMicroelectronics |
| 11 | * Author: Prafulla WADASKAR <prafulla.wadaskar@st.com> |
| 12 | * Copyright (C) 2009 Alessandro Rubini <rubini@unipv.it> |
| 13 | * |
| 14 | * This program is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU General Public License version 2 as |
| 16 | * published by the Free Software Foundation. |
| 17 | */ |
| 18 | |
| 19 | #ifndef __DB8500_GPIO_H__ |
| 20 | #define __DB8500_GPIO_H__ |
| 21 | |
| 22 | /* Alternate functions: function C is set in hw by setting both A and B */ |
| 23 | enum db8500_gpio_alt { |
| 24 | DB8500_GPIO_ALT_GPIO = 0, |
| 25 | DB8500_GPIO_ALT_A = 1, |
| 26 | DB8500_GPIO_ALT_B = 2, |
| 27 | DB8500_GPIO_ALT_C = (DB8500_GPIO_ALT_A | DB8500_GPIO_ALT_B) |
| 28 | }; |
| 29 | |
| 30 | enum db8500_gpio_pull { |
| 31 | DB8500_GPIO_PULL_NONE, |
| 32 | DB8500_GPIO_PULL_UP, |
| 33 | DB8500_GPIO_PULL_DOWN |
| 34 | }; |
| 35 | |
| 36 | void db8500_gpio_set_pull(unsigned gpio, enum db8500_gpio_pull pull); |
| 37 | void db8500_gpio_make_input(unsigned gpio); |
| 38 | int db8500_gpio_get_input(unsigned gpio); |
| 39 | void db8500_gpio_make_output(unsigned gpio, int val); |
| 40 | void db8500_gpio_set_output(unsigned gpio, int val); |
| 41 | |
| 42 | #endif /* __DB8500_GPIO_H__ */ |