| /* |
| * Copyright (C) ST-Ericsson SA 2010 |
| * |
| * Code ported from Nomadik GPIO driver in ST-Ericsson Linux kernel code. |
| * The purpose is that GPIO config found in kernel should work by simply |
| * copy-paste it to U-boot. Ported 2010 to U-boot by: |
| * Author: Joakim Axelsson <joakim.axelsson AT stericsson.com> |
| * |
| * License terms: GNU General Public License, version 2 |
| * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson |
| * |
| * |
| * Based on arch/arm/mach-pxa/include/mach/mfp.h: |
| * Copyright (C) 2007 Marvell International Ltd. |
| * eric miao <eric.miao@marvell.com> |
| */ |
| |
| #ifndef __DB8500_PINCFG_H |
| #define __DB8500_PINCFG_H |
| |
| #include "db8500_gpio.h" |
| |
| /* |
| * U-boot info: |
| * SLPM (sleep mode) config will be ignored by U-boot but it is still |
| * possible to configure it in order to keep cut-n-paste compability |
| * with Linux kernel config. |
| * |
| * 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 (not used in U-boot) |
| * bit 14 - Direction |
| * bit 15 - Value (if output) |
| * bit 16..18 - SLPM pull up/down state (not used in U-boot) |
| * bit 19..20 - SLPM direction (not used in U-boot) |
| * bit 21..22 - SLPM Value (if output) (not used in U-boot) |
| * |
| * to facilitate the definition, the following macros are provided |
| * |
| * PIN_CFG_DEFAULT - default config (0): |
| * pull up/down = disabled |
| * sleep mode = input/wakeup |
| * direction = input |
| * value = low |
| * SLPM direction = same as normal |
| * SLPM pull = same as normal |
| * SLPM value = same as normal |
| * |
| * PIN_CFG - default config with alternate function |
| * PIN_CFG_PULL - default config with alternate function and pull up/down |
| */ |
| |
| /* Sleep mode */ |
| enum db8500_gpio_slpm { |
| DB8500_GPIO_SLPM_INPUT, |
| DB8500_GPIO_SLPM_WAKEUP_ENABLE = DB8500_GPIO_SLPM_INPUT, |
| DB8500_GPIO_SLPM_NOCHANGE, |
| DB8500_GPIO_SLPM_WAKEUP_DISABLE = DB8500_GPIO_SLPM_NOCHANGE, |
| }; |
| |
| #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 (DB8500_GPIO_ALT_GPIO << PIN_ALT_SHIFT) |
| #define PIN_ALT_A (DB8500_GPIO_ALT_A << PIN_ALT_SHIFT) |
| #define PIN_ALT_B (DB8500_GPIO_ALT_B << PIN_ALT_SHIFT) |
| #define PIN_ALT_C (DB8500_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 (DB8500_GPIO_PULL_NONE << PIN_PULL_SHIFT) |
| #define PIN_PULL_UP (DB8500_GPIO_PULL_UP << PIN_PULL_SHIFT) |
| #define PIN_PULL_DOWN (DB8500_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 (DB8500_GPIO_SLPM_INPUT << PIN_SLPM_SHIFT) |
| #define PIN_SLPM_NOCHANGE (DB8500_GPIO_SLPM_NOCHANGE << PIN_SLPM_SHIFT) |
| /* These two replace the above in DB8500v2+ */ |
| #define PIN_SLPM_WAKEUP_ENABLE \ |
| (DB8500_GPIO_SLPM_WAKEUP_ENABLE << PIN_SLPM_SHIFT) |
| #define PIN_SLPM_WAKEUP_DISABLE \ |
| (DB8500_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) |
| |
| #define PIN_SLPM_PULL_SHIFT 16 |
| #define PIN_SLPM_PULL_MASK (0x7 << PIN_SLPM_PULL_SHIFT) |
| #define PIN_SLPM_PULL(x) \ |
| (((x) & PIN_SLPM_PULL_MASK) >> PIN_SLPM_PULL_SHIFT) |
| #define PIN_SLPM_PULL_NONE \ |
| ((1 + DB8500_GPIO_PULL_NONE) << PIN_SLPM_PULL_SHIFT) |
| #define PIN_SLPM_PULL_UP \ |
| ((1 + DB8500_GPIO_PULL_UP) << PIN_SLPM_PULL_SHIFT) |
| #define PIN_SLPM_PULL_DOWN \ |
| ((1 + DB8500_GPIO_PULL_DOWN) << PIN_SLPM_PULL_SHIFT) |
| |
| #define PIN_SLPM_DIR_SHIFT 19 |
| #define PIN_SLPM_DIR_MASK (0x3 << PIN_SLPM_DIR_SHIFT) |
| #define PIN_SLPM_DIR(x) \ |
| (((x) & PIN_SLPM_DIR_MASK) >> PIN_SLPM_DIR_SHIFT) |
| #define PIN_SLPM_DIR_INPUT ((1 + 0) << PIN_SLPM_DIR_SHIFT) |
| #define PIN_SLPM_DIR_OUTPUT ((1 + 1) << PIN_SLPM_DIR_SHIFT) |
| |
| #define PIN_SLPM_VAL_SHIFT 21 |
| #define PIN_SLPM_VAL_MASK (0x3 << PIN_SLPM_VAL_SHIFT) |
| #define PIN_SLPM_VAL(x) \ |
| (((x) & PIN_SLPM_VAL_MASK) >> PIN_SLPM_VAL_SHIFT) |
| #define PIN_SLPM_VAL_LOW ((1 + 0) << PIN_SLPM_VAL_SHIFT) |
| #define PIN_SLPM_VAL_HIGH ((1 + 1) << PIN_SLPM_VAL_SHIFT) |
| |
| /* Shortcuts. Use these instead of separate DIR, PULL, and VAL. */ |
| #define PIN_INPUT_PULLDOWN (PIN_DIR_INPUT | PIN_PULL_DOWN) |
| #define PIN_INPUT_PULLUP (PIN_DIR_INPUT | PIN_PULL_UP) |
| #define PIN_INPUT_NOPULL (PIN_DIR_INPUT | PIN_PULL_NONE) |
| #define PIN_OUTPUT_LOW (PIN_DIR_OUTPUT | PIN_VAL_LOW) |
| #define PIN_OUTPUT_HIGH (PIN_DIR_OUTPUT | PIN_VAL_HIGH) |
| |
| #define PIN_SLPM_INPUT_PULLDOWN (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_DOWN) |
| #define PIN_SLPM_INPUT_PULLUP (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_UP) |
| #define PIN_SLPM_INPUT_NOPULL (PIN_SLPM_DIR_INPUT | PIN_SLPM_PULL_NONE) |
| #define PIN_SLPM_OUTPUT_LOW (PIN_SLPM_DIR_OUTPUT | PIN_SLPM_VAL_LOW) |
| #define PIN_SLPM_OUTPUT_HIGH (PIN_SLPM_DIR_OUTPUT | PIN_SLPM_VAL_HIGH) |
| |
| #define PIN_CFG_DEFAULT (0) |
| |
| #define PIN_CFG(num, alt) \ |
| (PIN_CFG_DEFAULT |\ |
| (PIN_NUM(num) | PIN_##alt)) |
| |
| #define PIN_CFG_INPUT(num, alt, pull) \ |
| (PIN_CFG_DEFAULT |\ |
| (PIN_NUM(num) | PIN_##alt | PIN_INPUT_##pull)) |
| |
| #define PIN_CFG_OUTPUT(num, alt, val) \ |
| (PIN_CFG_DEFAULT |\ |
| (PIN_NUM(num) | PIN_##alt | PIN_OUTPUT_##val)) |
| |
| #define PIN_CFG_PULL(num, alt, pull) \ |
| ((PIN_CFG_DEFAULT & ~PIN_PULL_MASK) |\ |
| (PIN_NUM(num) | PIN_##alt | PIN_PULL_##pull)) |
| |
| /** |
| * db8500_gpio_config_pins - configure several pins at once |
| * @cfgs: array of pin configurations |
| * @num: number of elments in the array |
| * |
| * Configures several GPIO pins. |
| */ |
| void db8500_gpio_config_pins(unsigned long *cfgs, size_t num); |
| |
| #endif |
