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1/*
2 * Based on Linux i.MX iomux-v3.h file:
3 * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
4 * <armlinux@phytec.de>
5 *
6 * Copyright (C) 2011 Freescale Semiconductor, Inc.
7 *
1a459660 8 * SPDX-License-Identifier: GPL-2.0+
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9 */
10
11#ifndef __MACH_IOMUX_V3_H__
12#define __MACH_IOMUX_V3_H__
13
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14#include <common.h>
15
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16/*
17 * build IOMUX_PAD structure
18 *
19 * This iomux scheme is based around pads, which are the physical balls
20 * on the processor.
21 *
22 * - Each pad has a pad control register (IOMUXC_SW_PAD_CTRL_x) which controls
23 * things like driving strength and pullup/pulldown.
24 * - Each pad can have but not necessarily does have an output routing register
25 * (IOMUXC_SW_MUX_CTL_PAD_x).
26 * - Each pad can have but not necessarily does have an input routing register
27 * (IOMUXC_x_SELECT_INPUT)
28 *
29 * The three register sets do not have a fixed offset to each other,
30 * hence we order this table by pad control registers (which all pads
31 * have) and put the optional i/o routing registers into additional
32 * fields.
33 *
34 * The naming convention for the pad modes is SOC_PAD_<padname>__<padmode>
35 * If <padname> or <padmode> refers to a GPIO, it is named GPIO_<unit>_<num>
36 *
37 * IOMUX/PAD Bit field definitions
38 *
39 * MUX_CTRL_OFS: 0..11 (12)
40 * PAD_CTRL_OFS: 12..23 (12)
41 * SEL_INPUT_OFS: 24..35 (12)
42 * MUX_MODE + SION: 36..40 (5)
43 * PAD_CTRL + NO_PAD_CTRL: 41..58 (18)
44 * SEL_INP: 59..62 (4)
45 * reserved: 63 (1)
46*/
47
48typedef u64 iomux_v3_cfg_t;
49
50#define MUX_CTRL_OFS_SHIFT 0
51#define MUX_CTRL_OFS_MASK ((iomux_v3_cfg_t)0xfff << MUX_CTRL_OFS_SHIFT)
52#define MUX_PAD_CTRL_OFS_SHIFT 12
53#define MUX_PAD_CTRL_OFS_MASK ((iomux_v3_cfg_t)0xfff << \
54 MUX_PAD_CTRL_OFS_SHIFT)
55#define MUX_SEL_INPUT_OFS_SHIFT 24
56#define MUX_SEL_INPUT_OFS_MASK ((iomux_v3_cfg_t)0xfff << \
57 MUX_SEL_INPUT_OFS_SHIFT)
58
59#define MUX_MODE_SHIFT 36
60#define MUX_MODE_MASK ((iomux_v3_cfg_t)0x1f << MUX_MODE_SHIFT)
61#define MUX_PAD_CTRL_SHIFT 41
62#define MUX_PAD_CTRL_MASK ((iomux_v3_cfg_t)0x3ffff << MUX_PAD_CTRL_SHIFT)
63#define MUX_SEL_INPUT_SHIFT 59
64#define MUX_SEL_INPUT_MASK ((iomux_v3_cfg_t)0xf << MUX_SEL_INPUT_SHIFT)
65
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66#define MUX_MODE_SION ((iomux_v3_cfg_t)IOMUX_CONFIG_SION << \
67 MUX_MODE_SHIFT)
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68#define MUX_PAD_CTRL(x) ((iomux_v3_cfg_t)(x) << MUX_PAD_CTRL_SHIFT)
69
70#define IOMUX_PAD(pad_ctrl_ofs, mux_ctrl_ofs, mux_mode, sel_input_ofs, \
71 sel_input, pad_ctrl) \
72 (((iomux_v3_cfg_t)(mux_ctrl_ofs) << MUX_CTRL_OFS_SHIFT) | \
73 ((iomux_v3_cfg_t)(mux_mode) << MUX_MODE_SHIFT) | \
74 ((iomux_v3_cfg_t)(pad_ctrl_ofs) << MUX_PAD_CTRL_OFS_SHIFT) | \
75 ((iomux_v3_cfg_t)(pad_ctrl) << MUX_PAD_CTRL_SHIFT) | \
76 ((iomux_v3_cfg_t)(sel_input_ofs) << MUX_SEL_INPUT_OFS_SHIFT)| \
77 ((iomux_v3_cfg_t)(sel_input) << MUX_SEL_INPUT_SHIFT))
78
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79#define NEW_PAD_CTRL(cfg, pad) (((cfg) & ~MUX_PAD_CTRL_MASK) | \
80 MUX_PAD_CTRL(pad))
81
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82#define __NA_ 0x000
83#define NO_MUX_I 0
84#define NO_PAD_I 0
85
23608e23 86#define NO_PAD_CTRL (1 << 17)
23608e23 87
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88#ifdef CONFIG_MX6
89
dc88403e 90#define PAD_CTL_HYS (1 << 16)
79a34d3c 91
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92#define PAD_CTL_PUS_100K_DOWN (0 << 14 | PAD_CTL_PUE)
93#define PAD_CTL_PUS_47K_UP (1 << 14 | PAD_CTL_PUE)
94#define PAD_CTL_PUS_100K_UP (2 << 14 | PAD_CTL_PUE)
95#define PAD_CTL_PUS_22K_UP (3 << 14 | PAD_CTL_PUE)
96#define PAD_CTL_PUE (1 << 13 | PAD_CTL_PKE)
dc88403e 97#define PAD_CTL_PKE (1 << 12)
79a34d3c 98
dc88403e 99#define PAD_CTL_ODE (1 << 11)
79a34d3c 100
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101#if defined(CONFIG_MX6SX) || defined(CONFIG_MX6UL)
102#define PAD_CTL_SPEED_LOW (0 << 6)
103#else
dc88403e 104#define PAD_CTL_SPEED_LOW (1 << 6)
63ee5687 105#endif
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106#define PAD_CTL_SPEED_MED (2 << 6)
107#define PAD_CTL_SPEED_HIGH (3 << 6)
79a34d3c 108
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109#define PAD_CTL_DSE_DISABLE (0 << 3)
110#define PAD_CTL_DSE_240ohm (1 << 3)
111#define PAD_CTL_DSE_120ohm (2 << 3)
112#define PAD_CTL_DSE_80ohm (3 << 3)
113#define PAD_CTL_DSE_60ohm (4 << 3)
114#define PAD_CTL_DSE_48ohm (5 << 3)
115#define PAD_CTL_DSE_40ohm (6 << 3)
116#define PAD_CTL_DSE_34ohm (7 << 3)
d73b9760 117
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118#if defined CONFIG_MX6SL
119#define PAD_CTL_LVE (1 << 1)
120#define PAD_CTL_LVE_BIT (1 << 22)
121#endif
122
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123#elif defined(CONFIG_VF610)
124
125#define PAD_MUX_MODE_SHIFT 20
126
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127#define PAD_CTL_INPUT_DIFFERENTIAL (1 << 16)
128
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129#define PAD_CTL_SPEED_MED (1 << 12)
130#define PAD_CTL_SPEED_HIGH (3 << 12)
131
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132#define PAD_CTL_SRE (1 << 11)
133
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134#define PAD_CTL_ODE (1 << 10)
135
9d2ca098 136#define PAD_CTL_DSE_150ohm (1 << 6)
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137#define PAD_CTL_DSE_50ohm (3 << 6)
138#define PAD_CTL_DSE_25ohm (6 << 6)
139#define PAD_CTL_DSE_20ohm (7 << 6)
140
141#define PAD_CTL_PUS_47K_UP (1 << 4 | PAD_CTL_PUE)
142#define PAD_CTL_PUS_100K_UP (2 << 4 | PAD_CTL_PUE)
9d2ca098 143#define PAD_CTL_PUS_22K_UP (3 << 4 | PAD_CTL_PUE)
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144#define PAD_CTL_PKE (1 << 3)
145#define PAD_CTL_PUE (1 << 2 | PAD_CTL_PKE)
146
147#define PAD_CTL_OBE_IBE_ENABLE (3 << 0)
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148#define PAD_CTL_OBE_ENABLE (1 << 1)
149#define PAD_CTL_IBE_ENABLE (1 << 0)
cfd701b5 150
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151#else
152
153#define PAD_CTL_DVS (1 << 13)
154#define PAD_CTL_INPUT_DDR (1 << 9)
155#define PAD_CTL_HYS (1 << 8)
156
157#define PAD_CTL_PKE (1 << 7)
158#define PAD_CTL_PUE (1 << 6 | PAD_CTL_PKE)
159#define PAD_CTL_PUS_100K_DOWN (0 << 4 | PAD_CTL_PUE)
160#define PAD_CTL_PUS_47K_UP (1 << 4 | PAD_CTL_PUE)
161#define PAD_CTL_PUS_100K_UP (2 << 4 | PAD_CTL_PUE)
162#define PAD_CTL_PUS_22K_UP (3 << 4 | PAD_CTL_PUE)
163
164#define PAD_CTL_ODE (1 << 3)
165
166#define PAD_CTL_DSE_LOW (0 << 1)
167#define PAD_CTL_DSE_MED (1 << 1)
168#define PAD_CTL_DSE_HIGH (2 << 1)
169#define PAD_CTL_DSE_MAX (3 << 1)
170
171#endif
172
dc88403e 173#define PAD_CTL_SRE_SLOW (0 << 0)
79a34d3c 174#define PAD_CTL_SRE_FAST (1 << 0)
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175
176#define IOMUX_CONFIG_SION 0x10
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177
178#define GPIO_PIN_MASK 0x1f
179#define GPIO_PORT_SHIFT 5
180#define GPIO_PORT_MASK (0x7 << GPIO_PORT_SHIFT)
181#define GPIO_PORTA (0 << GPIO_PORT_SHIFT)
182#define GPIO_PORTB (1 << GPIO_PORT_SHIFT)
183#define GPIO_PORTC (2 << GPIO_PORT_SHIFT)
184#define GPIO_PORTD (3 << GPIO_PORT_SHIFT)
185#define GPIO_PORTE (4 << GPIO_PORT_SHIFT)
186#define GPIO_PORTF (5 << GPIO_PORT_SHIFT)
23608e23 187
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188void imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad);
189void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list,
5ae28d2d 190 unsigned count);
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191/*
192* Set bits for general purpose registers
193*/
194void imx_iomux_set_gpr_register(int group, int start_bit,
195 int num_bits, int value);
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196#ifdef CONFIG_IOMUX_SHARE_CONF_REG
197void imx_iomux_gpio_set_direction(unsigned int gpio,
198 unsigned int direction);
199void imx_iomux_gpio_get_function(unsigned int gpio,
200 u32 *gpio_state);
201#endif
23608e23 202
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203/* macros for declaring and using pinmux array */
204#if defined(CONFIG_MX6QDL)
205#define IOMUX_PADS(x) (MX6Q_##x), (MX6DL_##x)
206#define SETUP_IOMUX_PAD(def) \
207if (is_cpu_type(MXC_CPU_MX6Q)) { \
208 imx_iomux_v3_setup_pad(MX6Q_##def); \
209} else { \
210 imx_iomux_v3_setup_pad(MX6DL_##def); \
211}
212#define SETUP_IOMUX_PADS(x) \
213 imx_iomux_v3_setup_multiple_pads(x, ARRAY_SIZE(x)/2)
214#elif defined(CONFIG_MX6Q) || defined(CONFIG_MX6D)
215#define IOMUX_PADS(x) MX6Q_##x
216#define SETUP_IOMUX_PAD(def) \
217 imx_iomux_v3_setup_pad(MX6Q_##def);
218#define SETUP_IOMUX_PADS(x) \
219 imx_iomux_v3_setup_multiple_pads(x, ARRAY_SIZE(x))
220#else
221#define IOMUX_PADS(x) MX6DL_##x
222#define SETUP_IOMUX_PAD(def) \
223 imx_iomux_v3_setup_pad(MX6DL_##def);
224#define SETUP_IOMUX_PADS(x) \
225 imx_iomux_v3_setup_multiple_pads(x, ARRAY_SIZE(x))
226#endif
227
23608e23 228#endif /* __MACH_IOMUX_V3_H__*/