1/* 2 * Copyright (C) ST-Ericsson SA 2010 3 * 4 * License terms: GNU General Public License, version 2 5 * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson 6 * 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> 10 */ 11 12#ifndef __PLAT_PINCFG_H 13#define __PLAT_PINCFG_H 14 15/* 16 * pin configurations are represented by 32-bit integers: 17 * 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 22 * bit 14 - Direction 23 * bit 15 - Value (if output) 24 * bit 16..18 - SLPM pull up/down state 25 * bit 19..20 - SLPM direction 26 * bit 21..22 - SLPM Value (if output) 27 * 28 * to facilitate the definition, the following macros are provided 29 * 30 * PIN_CFG_DEFAULT - default config (0): 31 * pull up/down = disabled 32 * sleep mode = input/wakeup 33 * direction = input 34 * value = low 35 * SLPM direction = same as normal 36 * SLPM pull = same as normal 37 * SLPM value = same as normal 38 * 39 * PIN_CFG - default config with alternate function 40 */ 41 42typedef unsigned long pin_cfg_t; 43 44#define PIN_NUM_MASK 0x1ff 45#define PIN_NUM(x) ((x) & PIN_NUM_MASK) 46 47#define PIN_ALT_SHIFT 9 48#define PIN_ALT_MASK (0x3 << PIN_ALT_SHIFT) 49#define PIN_ALT(x) (((x) & PIN_ALT_MASK) >> PIN_ALT_SHIFT) 50#define PIN_GPIO (NMK_GPIO_ALT_GPIO << PIN_ALT_SHIFT) 51#define PIN_ALT_A (NMK_GPIO_ALT_A << PIN_ALT_SHIFT) 52#define PIN_ALT_B (NMK_GPIO_ALT_B << PIN_ALT_SHIFT) 53#define PIN_ALT_C (NMK_GPIO_ALT_C << PIN_ALT_SHIFT) 54 55#define PIN_PULL_SHIFT 11 56#define PIN_PULL_MASK (0x3 << PIN_PULL_SHIFT) 57#define PIN_PULL(x) (((x) & PIN_PULL_MASK) >> PIN_PULL_SHIFT) 58#define PIN_PULL_NONE (NMK_GPIO_PULL_NONE << PIN_PULL_SHIFT) 59#define PIN_PULL_UP (NMK_GPIO_PULL_UP << PIN_PULL_SHIFT) 60#define PIN_PULL_DOWN (NMK_GPIO_PULL_DOWN << PIN_PULL_SHIFT) 61 62#define PIN_SLPM_SHIFT 13 63#define PIN_SLPM_MASK (0x1 << PIN_SLPM_SHIFT) 64#define PIN_SLPM(x) (((x) & PIN_SLPM_MASK) >> PIN_SLPM_SHIFT) 65#define PIN_SLPM_MAKE_INPUT (NMK_GPIO_SLPM_INPUT << PIN_SLPM_SHIFT) 66#define PIN_SLPM_NOCHANGE (NMK_GPIO_SLPM_NOCHANGE << PIN_SLPM_SHIFT) 67/* These two replace the above in DB8500v2+ */ 68#define PIN_SLPM_WAKEUP_ENABLE (NMK_GPIO_SLPM_WAKEUP_ENABLE << PIN_SLPM_SHIFT) 69#define PIN_SLPM_WAKEUP_DISABLE (NMK_GPIO_SLPM_WAKEUP_DISABLE << PIN_SLPM_SHIFT) 70 71#define PIN_DIR_SHIFT 14 72#define PIN_DIR_MASK (0x1 << PIN_DIR_SHIFT) 73#define PIN_DIR(x) (((x) & PIN_DIR_MASK) >> PIN_DIR_SHIFT) 74#define PIN_DIR_INPUT (0 << PIN_DIR_SHIFT) 75#define PIN_DIR_OUTPUT (1 << PIN_DIR_SHIFT) 76 77#define PIN_VAL_SHIFT 15 78#define PIN_VAL_MASK (0x1 << PIN_VAL_SHIFT) 79#define PIN_VAL(x) (((x) & PIN_VAL_MASK) >> PIN_VAL_SHIFT) 80#define PIN_VAL_LOW (0 << PIN_VAL_SHIFT) 81#define PIN_VAL_HIGH (1 << PIN_VAL_SHIFT) 82 83#define PIN_SLPM_PULL_SHIFT 16 84#define PIN_SLPM_PULL_MASK (0x7 << PIN_SLPM_PULL_SHIFT) 85#define PIN_SLPM_PULL(x) \ 86 (((x) & PIN_SLPM_PULL_MASK) >> PIN_SLPM_PULL_SHIFT) 87#define PIN_SLPM_PULL_NONE \ 88 ((1 + NMK_GPIO_PULL_NONE) << PIN_SLPM_PULL_SHIFT) 89#define PIN_SLPM_PULL_UP \ 90 ((1 + NMK_GPIO_PULL_UP) << PIN_SLPM_PULL_SHIFT) 91#define PIN_SLPM_PULL_DOWN \ 92 ((1 + NMK_GPIO_PULL_DOWN) << PIN_SLPM_PULL_SHIFT) 93 94#define PIN_SLPM_DIR_SHIFT 19 95#define PIN_SLPM_DIR_MASK (0x3 << PIN_SLPM_DIR_SHIFT) 96#define PIN_SLPM_DIR(x) \ 97 (((x) & PIN_SLPM_DIR_MASK) >> PIN_SLPM_DIR_SHIFT) 98#define PIN_SLPM_DIR_INPUT ((1 + 0) << PIN_SLPM_DIR_SHIFT) 99#define PIN_SLPM_DIR_OUTPUT ((1 + 1) << PIN_SLPM_DIR_SHIFT) 100 101#define PIN_SLPM_VAL_SHIFT 21 102#define PIN_SLPM_VAL_MASK (0x3 << PIN_SLPM_VAL_SHIFT) 103#define PIN_SLPM_VAL(x) \ 104 (((x) & PIN_SLPM_VAL_MASK) >> PIN_SLPM_VAL_SHIFT) 105#define PIN_SLPM_VAL_LOW ((1 + 0) << PIN_SLPM_VAL_SHIFT) 106#define PIN_SLPM_VAL_HIGH ((1 + 1) << PIN_SLPM_VAL_SHIFT) 107 108/* Shortcuts. Use these instead of separate DIR, PULL, and VAL. */ 109#define PIN_INPUT_PULLDOWN (PIN_DIR_INPUT | PIN_PULL_DOWN) 110#define PIN_INPUT_PULLUP (PIN_DIR_INPUT | PIN_PULL_UP) 111#define PIN_INPUT_NOPULL (PIN_DIR_INPUT | PIN_PULL_NONE) 112#define PIN_OUTPUT_LOW (PIN_DIR_OUTPUT | PIN_VAL_LOW) 113#define PIN_OUTPUT_HIGH (PIN_DIR_OUTPUT | PIN_VAL_HIGH) 114 115#define PIN_SLPM_INPUT_PULLDOWN (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_DOWN) 116#define PIN_SLPM_INPUT_PULLUP (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_UP) 117#define PIN_SLPM_INPUT_NOPULL (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_NONE) 118#define PIN_SLPM_OUTPUT_LOW (PIN_SLPM_DIR_OUTPUT | PIN_SLPM_VAL_LOW) 119#define PIN_SLPM_OUTPUT_HIGH (PIN_SLPM_DIR_OUTPUT | PIN_SLPM_VAL_HIGH) 120 121#define PIN_CFG_DEFAULT (0) 122 123#define PIN_CFG(num, alt) \ 124 (PIN_CFG_DEFAULT |\ 125 (PIN_NUM(num) | PIN_##alt)) 126 127#define PIN_CFG_INPUT(num, alt, pull) \ 128 (PIN_CFG_DEFAULT |\ 129 (PIN_NUM(num) | PIN_##alt | PIN_INPUT_##pull)) 130 131#define PIN_CFG_OUTPUT(num, alt, val) \ 132 (PIN_CFG_DEFAULT |\ 133 (PIN_NUM(num) | PIN_##alt | PIN_OUTPUT_##val)) 134 135extern int nmk_config_pin(pin_cfg_t cfg, bool sleep); 136extern int nmk_config_pins(pin_cfg_t *cfgs, int num); 137extern int nmk_config_pins_sleep(pin_cfg_t *cfgs, int num); 138 139#endif 140