2 * Copyright (C) ST-Ericsson SA 2010
4 * License terms: GNU General Public License, version 2
5 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
7 * Based on arch/arm/mach-pxa/include/mach/mfp.h:
8 * Copyright (C) 2007 Marvell International Ltd.
9 * eric miao <eric.miao@marvell.com>
12 #ifndef __PLAT_PINCFG_H
13 #define __PLAT_PINCFG_H
16 * pin configurations are represented by 32-bit integers:
18 * bit 0.. 8 - Pin Number (512 Pins Maximum)
19 * bit 9..10 - Alternate Function Selection
20 * bit 11..12 - Pull up/down state
21 * bit 13 - Sleep mode behaviour
23 * to facilitate the definition, the following macros are provided
25 * PIN_CFG_DEFAULT - default config (0):
26 * pull up/down = disabled
29 * PIN_CFG - default config with alternate function
30 * PIN_CFG_PULL - default config with alternate function and pull up/down
33 typedef unsigned long pin_cfg_t;
35 #define PIN_NUM_MASK 0x1ff
36 #define PIN_NUM(x) ((x) & PIN_NUM_MASK)
38 #define PIN_ALT_SHIFT 9
39 #define PIN_ALT_MASK (0x3 << PIN_ALT_SHIFT)
40 #define PIN_ALT(x) (((x) & PIN_ALT_MASK) >> PIN_ALT_SHIFT)
41 #define PIN_GPIO (NMK_GPIO_ALT_GPIO << PIN_ALT_SHIFT)
42 #define PIN_ALT_A (NMK_GPIO_ALT_A << PIN_ALT_SHIFT)
43 #define PIN_ALT_B (NMK_GPIO_ALT_B << PIN_ALT_SHIFT)
44 #define PIN_ALT_C (NMK_GPIO_ALT_C << PIN_ALT_SHIFT)
46 #define PIN_PULL_SHIFT 11
47 #define PIN_PULL_MASK (0x3 << PIN_PULL_SHIFT)
48 #define PIN_PULL(x) (((x) & PIN_PULL_MASK) >> PIN_PULL_SHIFT)
49 #define PIN_PULL_NONE (NMK_GPIO_PULL_NONE << PIN_PULL_SHIFT)
50 #define PIN_PULL_UP (NMK_GPIO_PULL_UP << PIN_PULL_SHIFT)
51 #define PIN_PULL_DOWN (NMK_GPIO_PULL_DOWN << PIN_PULL_SHIFT)
53 #define PIN_SLPM_SHIFT 13
54 #define PIN_SLPM_MASK (0x1 << PIN_SLPM_SHIFT)
55 #define PIN_SLPM(x) (((x) & PIN_SLPM_MASK) >> PIN_SLPM_SHIFT)
56 #define PIN_SLPM_INPUT (NMK_GPIO_SLPM_INPUT << PIN_SLPM_SHIFT)
57 #define PIN_SLPM_NOCHANGE (NMK_GPIO_SLPM_NOCHANGE << PIN_SLPM_SHIFT)
59 #define PIN_CFG_DEFAULT (PIN_PULL_NONE | PIN_SLPM_INPUT)
61 #define PIN_CFG(num, alt) \
63 (PIN_NUM(num) | PIN_##alt))
65 #define PIN_CFG_PULL(num, alt, pull) \
66 ((PIN_CFG_DEFAULT & ~PIN_PULL_MASK) |\
67 (PIN_NUM(num) | PIN_##alt | PIN_PULL_##pull))
69 extern int nmk_config_pin(pin_cfg_t cfg);
70 extern int nmk_config_pins(pin_cfg_t *cfgs, int num);