2 * Copyright (c) 2016, NVIDIA CORPORATION.
4 * SPDX-License-Identifier: GPL-2.0
7 #ifndef _TEGRA186_GPIO_PRIV_H_
8 #define _TEGRA186_GPIO_PRIV_H_
11 * For each GPIO, there are a set of registers than affect it, all packed
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)
28 #define TEGRA186_GPIO_DEBOUNCE_THRESHOLD 0x04
30 #define TEGRA186_GPIO_INPUT 0x08
32 #define TEGRA186_GPIO_OUTPUT_CONTROL 0x0c
33 #define TEGRA186_GPIO_OUTPUT_CONTROL_FLOATED BIT(0)
35 #define TEGRA186_GPIO_OUTPUT_VALUE 0x10
36 #define TEGRA186_GPIO_OUTPUT_VALUE_HIGH 1
38 #define TEGRA186_GPIO_INTERRUPT_CLEAR 0x14
41 * 8 GPIOs are packed into a port. Their registers appear back-to-back in the
42 * port's address space.
44 #define TEGRA186_GPIO_PER_GPIO_STRIDE 0x20
45 #define TEGRA186_GPIO_PER_GPIO_COUNT 8
48 * Per-port registers are packed immediately following all of a port's
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
56 * The registers for multiple ports are packed together back-to-back to form
57 * the overall controller.
59 #define TEGRA186_GPIO_PER_PORT_STRIDE 0x200