/* * Copyright (C) ST-Ericsson SA 2010 * * License terms: GNU General Public License, version 2 * Author: Rabin Vincent for ST-Ericsson * * Based on arch/arm/mach-pxa/include/mach/mfp.h: * Copyright (C) 2007 Marvell International Ltd. * eric miao */ #ifndef __PLAT_PINCFG_H #define __PLAT_PINCFG_H /* * pin configurations are represented by 32-bit integers: * * bit 0.. 8 - Pin Number (512 Pins Maximum) * bit 9..10 - Alternate Function Selection * bit 11..12 - Pull up/down state * bit 13 - Sleep mode behaviour * bit 14 - (sleep mode) Direction * bit 15 - (sleep mode) Value (if output) * * to facilitate the definition, the following macros are provided * * PIN_CFG_DEFAULT - default config (0): * pull up/down = disabled * sleep mode = input/wakeup * (sleep mode) direction = input * (sleep mode) value = low * * PIN_CFG - default config with alternate function * PIN_CFG_PULL - default config with alternate function and pull up/down */ typedef unsigned long pin_cfg_t; #define PIN_NUM_MASK 0x1ff #define PIN_NUM(x) ((x) & PIN_NUM_MASK) #define PIN_ALT_SHIFT 9 #define PIN_ALT_MASK (0x3 << PIN_ALT_SHIFT) #define PIN_ALT(x) (((x) & PIN_ALT_MASK) >> PIN_ALT_SHIFT) #define PIN_GPIO (NMK_GPIO_ALT_GPIO << PIN_ALT_SHIFT) #define PIN_ALT_A (NMK_GPIO_ALT_A << PIN_ALT_SHIFT) #define PIN_ALT_B (NMK_GPIO_ALT_B << PIN_ALT_SHIFT) #define PIN_ALT_C (NMK_GPIO_ALT_C << PIN_ALT_SHIFT) #define PIN_PULL_SHIFT 11 #define PIN_PULL_MASK (0x3 << PIN_PULL_SHIFT) #define PIN_PULL(x) (((x) & PIN_PULL_MASK) >> PIN_PULL_SHIFT) #define PIN_PULL_NONE (NMK_GPIO_PULL_NONE << PIN_PULL_SHIFT) #define PIN_PULL_UP (NMK_GPIO_PULL_UP << PIN_PULL_SHIFT) #define PIN_PULL_DOWN (NMK_GPIO_PULL_DOWN << PIN_PULL_SHIFT) #define PIN_SLPM_SHIFT 13 #define PIN_SLPM_MASK (0x1 << PIN_SLPM_SHIFT) #define PIN_SLPM(x) (((x) & PIN_SLPM_MASK) >> PIN_SLPM_SHIFT) #define PIN_SLPM_MAKE_INPUT (NMK_GPIO_SLPM_INPUT << PIN_SLPM_SHIFT) #define PIN_SLPM_NOCHANGE (NMK_GPIO_SLPM_NOCHANGE << PIN_SLPM_SHIFT) /* These two replace the above in DB8500v2+ */ #define PIN_SLPM_WAKEUP_ENABLE (NMK_GPIO_SLPM_WAKEUP_ENABLE << PIN_SLPM_SHIFT) #define PIN_SLPM_WAKEUP_DISABLE (NMK_GPIO_SLPM_WAKEUP_DISABLE << PIN_SLPM_SHIFT) #define PIN_DIR_SHIFT 14 #define PIN_DIR_MASK (0x1 << PIN_DIR_SHIFT) #define PIN_DIR(x) (((x) & PIN_DIR_MASK) >> PIN_DIR_SHIFT) #define PIN_DIR_INPUT (0 << PIN_DIR_SHIFT) #define PIN_DIR_OUTPUT (1 << PIN_DIR_SHIFT) #define PIN_VAL_SHIFT 15 #define PIN_VAL_MASK (0x1 << PIN_VAL_SHIFT) #define PIN_VAL(x) (((x) & PIN_VAL_MASK) >> PIN_VAL_SHIFT) #define PIN_VAL_LOW (0 << PIN_VAL_SHIFT) #define PIN_VAL_HIGH (1 << PIN_VAL_SHIFT) /* Shortcuts. Use these instead of separate DIR and VAL. */ #define PIN_INPUT PIN_DIR_INPUT #define PIN_OUTPUT_LOW (PIN_DIR_OUTPUT | PIN_VAL_LOW) #define PIN_OUTPUT_HIGH (PIN_DIR_OUTPUT | PIN_VAL_HIGH) /* * These are the same as the ones above, but should make more sense to the * reader when seen along with a setting a pin to AF mode. */ #define PIN_SLPM_INPUT PIN_INPUT #define PIN_SLPM_OUTPUT_LOW PIN_OUTPUT_LOW #define PIN_SLPM_OUTPUT_HIGH PIN_OUTPUT_HIGH #define PIN_CFG_DEFAULT (PIN_PULL_NONE | PIN_SLPM_INPUT) #define PIN_CFG(num, alt) \ (PIN_CFG_DEFAULT |\ (PIN_NUM(num) | PIN_##alt)) #define PIN_CFG_PULL(num, alt, pull) \ ((PIN_CFG_DEFAULT & ~PIN_PULL_MASK) |\ (PIN_NUM(num) | PIN_##alt | PIN_PULL_##pull)) extern int nmk_config_pin(pin_cfg_t cfg); extern int nmk_config_pins(pin_cfg_t *cfgs, int num); #endif