ARM: 6353/1: nomadik-gpio: add SLPM register handing for DB8500v2
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / arch / arm / plat-nomadik / include / plat / gpio.h
blob67b113d639d825f6072f2abe4f4251bccc480fda
1 /*
2 * Structures and registers for GPIO access in the Nomadik SoC
4 * Copyright (C) 2008 STMicroelectronics
5 * Author: Prafulla WADASKAR <prafulla.wadaskar@st.com>
6 * Copyright (C) 2009 Alessandro Rubini <rubini@unipv.it>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
12 #ifndef __ASM_PLAT_GPIO_H
13 #define __ASM_PLAT_GPIO_H
15 #include <asm-generic/gpio.h>
18 * These currently cause a function call to happen, they may be optimized
19 * if needed by adding cpu-specific defines to identify blocks
20 * (see mach-pxa/include/mach/gpio.h as an example using GPLR etc)
22 #define gpio_get_value __gpio_get_value
23 #define gpio_set_value __gpio_set_value
24 #define gpio_cansleep __gpio_cansleep
25 #define gpio_to_irq __gpio_to_irq
28 * "nmk_gpio" and "NMK_GPIO" stand for "Nomadik GPIO", leaving
29 * the "gpio" namespace for generic and cross-machine functions
32 /* Register in the logic block */
33 #define NMK_GPIO_DAT 0x00
34 #define NMK_GPIO_DATS 0x04
35 #define NMK_GPIO_DATC 0x08
36 #define NMK_GPIO_PDIS 0x0c
37 #define NMK_GPIO_DIR 0x10
38 #define NMK_GPIO_DIRS 0x14
39 #define NMK_GPIO_DIRC 0x18
40 #define NMK_GPIO_SLPC 0x1c
41 #define NMK_GPIO_AFSLA 0x20
42 #define NMK_GPIO_AFSLB 0x24
44 #define NMK_GPIO_RIMSC 0x40
45 #define NMK_GPIO_FIMSC 0x44
46 #define NMK_GPIO_IS 0x48
47 #define NMK_GPIO_IC 0x4c
48 #define NMK_GPIO_RWIMSC 0x50
49 #define NMK_GPIO_FWIMSC 0x54
50 #define NMK_GPIO_WKS 0x58
52 /* Alternate functions: function C is set in hw by setting both A and B */
53 #define NMK_GPIO_ALT_GPIO 0
54 #define NMK_GPIO_ALT_A 1
55 #define NMK_GPIO_ALT_B 2
56 #define NMK_GPIO_ALT_C (NMK_GPIO_ALT_A | NMK_GPIO_ALT_B)
58 /* Pull up/down values */
59 enum nmk_gpio_pull {
60 NMK_GPIO_PULL_NONE,
61 NMK_GPIO_PULL_UP,
62 NMK_GPIO_PULL_DOWN,
65 /* Sleep mode */
66 enum nmk_gpio_slpm {
67 NMK_GPIO_SLPM_INPUT,
68 NMK_GPIO_SLPM_WAKEUP_ENABLE = NMK_GPIO_SLPM_INPUT,
69 NMK_GPIO_SLPM_NOCHANGE,
70 NMK_GPIO_SLPM_WAKEUP_DISABLE = NMK_GPIO_SLPM_NOCHANGE,
73 extern int nmk_gpio_set_slpm(int gpio, enum nmk_gpio_slpm mode);
74 extern int nmk_gpio_set_pull(int gpio, enum nmk_gpio_pull pull);
75 extern int nmk_gpio_set_mode(int gpio, int gpio_mode);
76 extern int nmk_gpio_get_mode(int gpio);
79 * Platform data to register a block: only the initial gpio/irq number.
81 struct nmk_gpio_platform_data {
82 char *name;
83 int first_gpio;
84 int first_irq;
87 #endif /* __ASM_PLAT_GPIO_H */