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 * PIN_CFG_PULL - default config with alternate function and pull up/down 41 */ 42 43 typedef unsigned long pin_cfg_t; 44 45 #define PIN_NUM_MASK 0x1ff 46 #define PIN_NUM(x) ((x) & PIN_NUM_MASK) 47 48 #define PIN_ALT_SHIFT 9 49 #define PIN_ALT_MASK (0x3 << PIN_ALT_SHIFT) 50 #define PIN_ALT(x) (((x) & PIN_ALT_MASK) >> PIN_ALT_SHIFT) 51 #define PIN_GPIO (NMK_GPIO_ALT_GPIO << PIN_ALT_SHIFT) 52 #define PIN_ALT_A (NMK_GPIO_ALT_A << PIN_ALT_SHIFT) 53 #define PIN_ALT_B (NMK_GPIO_ALT_B << PIN_ALT_SHIFT) 54 #define PIN_ALT_C (NMK_GPIO_ALT_C << PIN_ALT_SHIFT) 55 56 #define PIN_PULL_SHIFT 11 57 #define PIN_PULL_MASK (0x3 << PIN_PULL_SHIFT) 58 #define PIN_PULL(x) (((x) & PIN_PULL_MASK) >> PIN_PULL_SHIFT) 59 #define PIN_PULL_NONE (NMK_GPIO_PULL_NONE << PIN_PULL_SHIFT) 60 #define PIN_PULL_UP (NMK_GPIO_PULL_UP << PIN_PULL_SHIFT) 61 #define PIN_PULL_DOWN (NMK_GPIO_PULL_DOWN << PIN_PULL_SHIFT) 62 63 #define PIN_SLPM_SHIFT 13 64 #define PIN_SLPM_MASK (0x1 << PIN_SLPM_SHIFT) 65 #define PIN_SLPM(x) (((x) & PIN_SLPM_MASK) >> PIN_SLPM_SHIFT) 66 #define PIN_SLPM_MAKE_INPUT (NMK_GPIO_SLPM_INPUT << PIN_SLPM_SHIFT) 67 #define PIN_SLPM_NOCHANGE (NMK_GPIO_SLPM_NOCHANGE << PIN_SLPM_SHIFT) 68 /* These two replace the above in DB8500v2+ */ 69 #define PIN_SLPM_WAKEUP_ENABLE (NMK_GPIO_SLPM_WAKEUP_ENABLE << PIN_SLPM_SHIFT) 70 #define PIN_SLPM_WAKEUP_DISABLE (NMK_GPIO_SLPM_WAKEUP_DISABLE << PIN_SLPM_SHIFT) 71 72 #define PIN_DIR_SHIFT 14 73 #define PIN_DIR_MASK (0x1 << PIN_DIR_SHIFT) 74 #define PIN_DIR(x) (((x) & PIN_DIR_MASK) >> PIN_DIR_SHIFT) 75 #define PIN_DIR_INPUT (0 << PIN_DIR_SHIFT) 76 #define PIN_DIR_OUTPUT (1 << PIN_DIR_SHIFT) 77 78 #define PIN_VAL_SHIFT 15 79 #define PIN_VAL_MASK (0x1 << PIN_VAL_SHIFT) 80 #define PIN_VAL(x) (((x) & PIN_VAL_MASK) >> PIN_VAL_SHIFT) 81 #define PIN_VAL_LOW (0 << PIN_VAL_SHIFT) 82 #define PIN_VAL_HIGH (1 << PIN_VAL_SHIFT) 83 84 #define PIN_SLPM_PULL_SHIFT 16 85 #define PIN_SLPM_PULL_MASK (0x7 << PIN_SLPM_PULL_SHIFT) 86 #define PIN_SLPM_PULL(x) \ 87 (((x) & PIN_SLPM_PULL_MASK) >> PIN_SLPM_PULL_SHIFT) 88 #define PIN_SLPM_PULL_NONE \ 89 ((1 + NMK_GPIO_PULL_NONE) << PIN_SLPM_PULL_SHIFT) 90 #define PIN_SLPM_PULL_UP \ 91 ((1 + NMK_GPIO_PULL_UP) << PIN_SLPM_PULL_SHIFT) 92 #define PIN_SLPM_PULL_DOWN \ 93 ((1 + NMK_GPIO_PULL_DOWN) << PIN_SLPM_PULL_SHIFT) 94 95 #define PIN_SLPM_DIR_SHIFT 19 96 #define PIN_SLPM_DIR_MASK (0x3 << PIN_SLPM_DIR_SHIFT) 97 #define PIN_SLPM_DIR(x) \ 98 (((x) & PIN_SLPM_DIR_MASK) >> PIN_SLPM_DIR_SHIFT) 99 #define PIN_SLPM_DIR_INPUT ((1 + 0) << PIN_SLPM_DIR_SHIFT) 100 #define PIN_SLPM_DIR_OUTPUT ((1 + 1) << PIN_SLPM_DIR_SHIFT) 101 102 #define PIN_SLPM_VAL_SHIFT 21 103 #define PIN_SLPM_VAL_MASK (0x3 << PIN_SLPM_VAL_SHIFT) 104 #define PIN_SLPM_VAL(x) \ 105 (((x) & PIN_SLPM_VAL_MASK) >> PIN_SLPM_VAL_SHIFT) 106 #define PIN_SLPM_VAL_LOW ((1 + 0) << PIN_SLPM_VAL_SHIFT) 107 #define PIN_SLPM_VAL_HIGH ((1 + 1) << PIN_SLPM_VAL_SHIFT) 108 109 /* Shortcuts. Use these instead of separate DIR, PULL, and VAL. */ 110 #define PIN_INPUT_PULLDOWN (PIN_DIR_INPUT | PIN_PULL_DOWN) 111 #define PIN_INPUT_PULLUP (PIN_DIR_INPUT | PIN_PULL_UP) 112 #define PIN_INPUT_NOPULL (PIN_DIR_INPUT | PIN_PULL_NONE) 113 #define PIN_OUTPUT_LOW (PIN_DIR_OUTPUT | PIN_VAL_LOW) 114 #define PIN_OUTPUT_HIGH (PIN_DIR_OUTPUT | PIN_VAL_HIGH) 115 116 #define PIN_SLPM_INPUT_PULLDOWN (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_DOWN) 117 #define PIN_SLPM_INPUT_PULLUP (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_UP) 118 #define PIN_SLPM_INPUT_NOPULL (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_NONE) 119 #define PIN_SLPM_OUTPUT_LOW (PIN_SLPM_DIR_OUTPUT | PIN_SLPM_VAL_LOW) 120 #define PIN_SLPM_OUTPUT_HIGH (PIN_SLPM_DIR_OUTPUT | PIN_SLPM_VAL_HIGH) 121 122 #define PIN_CFG_DEFAULT (0) 123 124 #define PIN_CFG(num, alt) \ 125 (PIN_CFG_DEFAULT |\ 126 (PIN_NUM(num) | PIN_##alt)) 127 128 #define PIN_CFG_INPUT(num, alt, pull) \ 129 (PIN_CFG_DEFAULT |\ 130 (PIN_NUM(num) | PIN_##alt | PIN_INPUT_##pull)) 131 132 #define PIN_CFG_OUTPUT(num, alt, val) \ 133 (PIN_CFG_DEFAULT |\ 134 (PIN_NUM(num) | PIN_##alt | PIN_OUTPUT_##val)) 135 136 #define PIN_CFG_PULL(num, alt, pull) \ 137 ((PIN_CFG_DEFAULT & ~PIN_PULL_MASK) |\ 138 (PIN_NUM(num) | PIN_##alt | PIN_PULL_##pull)) 139 140 extern int nmk_config_pin(pin_cfg_t cfg, bool sleep); 141 extern int nmk_config_pins(pin_cfg_t *cfgs, int num); 142 extern int nmk_config_pins_sleep(pin_cfg_t *cfgs, int num); 143 144 #endif 145