1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (c) 2016, NVIDIA CORPORATION. 4 */ 5 6 #ifndef _TEGRA186_GPIO_PRIV_H_ 7 #define _TEGRA186_GPIO_PRIV_H_ 8 9 /* 10 * For each GPIO, there are a set of registers than affect it, all packed 11 * back-to-back. 12 */ 13 #include <linux/bitops.h> 14 #define TEGRA186_GPIO_ENABLE_CONFIG 0x00 15 #define TEGRA186_GPIO_ENABLE_CONFIG_ENABLE BIT(0) 16 #define TEGRA186_GPIO_ENABLE_CONFIG_OUT BIT(1) 17 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_SHIFT 2 18 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_MASK 3 19 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_NONE 0 20 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_LEVEL 1 21 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_SINGLE_EDGE 2 22 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_DOUBLE_EDGE 3 23 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_LEVEL_HIGH_RISING BIT(4) 24 #define TEGRA186_GPIO_ENABLE_CONFIG_DEBOUNCE_ENABLE BIT(5) 25 #define TEGRA186_GPIO_ENABLE_CONFIG_INTERRUPT_ENABLE BIT(6) 26 #define TEGRA186_GPIO_ENABLE_CONFIG_TIMESTAMPING_ENABLE BIT(7) 27 28 #define TEGRA186_GPIO_DEBOUNCE_THRESHOLD 0x04 29 30 #define TEGRA186_GPIO_INPUT 0x08 31 32 #define TEGRA186_GPIO_OUTPUT_CONTROL 0x0c 33 #define TEGRA186_GPIO_OUTPUT_CONTROL_FLOATED BIT(0) 34 35 #define TEGRA186_GPIO_OUTPUT_VALUE 0x10 36 #define TEGRA186_GPIO_OUTPUT_VALUE_HIGH 1 37 38 #define TEGRA186_GPIO_INTERRUPT_CLEAR 0x14 39 40 /* 41 * 8 GPIOs are packed into a port. Their registers appear back-to-back in the 42 * port's address space. 43 */ 44 #define TEGRA186_GPIO_PER_GPIO_STRIDE 0x20 45 #define TEGRA186_GPIO_PER_GPIO_COUNT 8 46 47 /* 48 * Per-port registers are packed immediately following all of a port's 49 * per-GPIO registers. 50 */ 51 #define TEGRA186_GPIO_INTERRUPT_STATUS_G 0x100 52 #define TEGRA186_GPIO_INTERRUPT_STATUS_G_STRIDE 4 53 #define TEGRA186_GPIO_INTERRUPT_STATUS_G_COUNT 8 54 55 /* 56 * The registers for multiple ports are packed together back-to-back to form 57 * the overall controller. 58 */ 59 #define TEGRA186_GPIO_PER_PORT_STRIDE 0x200 60 61 #endif 62