2 * Based on Linux i.MX iomux-v3.h file:
3 * Copyright (C) 2009 by Jan Weitzel Phytec Messtechnik GmbH,
6 * Copyright (C) 2011 Freescale Semiconductor, Inc.
8 * SPDX-License-Identifier: GPL-2.0+
11 #ifndef __MACH_IOMUX_V3_H__
12 #define __MACH_IOMUX_V3_H__
17 * build IOMUX_PAD structure
19 * This iomux scheme is based around pads, which are the physical balls
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)
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
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>
37 * IOMUX/PAD Bit field definitions
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)
48 typedef u64 iomux_v3_cfg_t;
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)
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)
66 #define MUX_MODE_SION ((iomux_v3_cfg_t)IOMUX_CONFIG_SION << \
68 #define MUX_PAD_CTRL(x) ((iomux_v3_cfg_t)(x) << MUX_PAD_CTRL_SHIFT)
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))
79 #define NEW_PAD_CTRL(cfg, pad) (((cfg) & ~MUX_PAD_CTRL_MASK) | \
86 #define NO_PAD_CTRL (1 << 17)
90 #define PAD_CTL_HYS (1 << 16)
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)
97 #define PAD_CTL_PKE (1 << 12)
99 #define PAD_CTL_ODE (1 << 11)
101 #define PAD_CTL_SPEED_LOW (1 << 6)
102 #define PAD_CTL_SPEED_MED (2 << 6)
103 #define PAD_CTL_SPEED_HIGH (3 << 6)
105 #define PAD_CTL_DSE_DISABLE (0 << 3)
106 #define PAD_CTL_DSE_240ohm (1 << 3)
107 #define PAD_CTL_DSE_120ohm (2 << 3)
108 #define PAD_CTL_DSE_80ohm (3 << 3)
109 #define PAD_CTL_DSE_60ohm (4 << 3)
110 #define PAD_CTL_DSE_48ohm (5 << 3)
111 #define PAD_CTL_DSE_40ohm (6 << 3)
112 #define PAD_CTL_DSE_34ohm (7 << 3)
114 #elif defined(CONFIG_VF610)
116 #define PAD_MUX_MODE_SHIFT 20
118 #define PAD_CTL_SPEED_MED (1 << 12)
119 #define PAD_CTL_SPEED_HIGH (3 << 12)
121 #define PAD_CTL_DSE_50ohm (3 << 6)
122 #define PAD_CTL_DSE_25ohm (6 << 6)
123 #define PAD_CTL_DSE_20ohm (7 << 6)
125 #define PAD_CTL_PUS_47K_UP (1 << 4 | PAD_CTL_PUE)
126 #define PAD_CTL_PUS_100K_UP (2 << 4 | PAD_CTL_PUE)
127 #define PAD_CTL_PKE (1 << 3)
128 #define PAD_CTL_PUE (1 << 2 | PAD_CTL_PKE)
130 #define PAD_CTL_OBE_IBE_ENABLE (3 << 0)
134 #define PAD_CTL_DVS (1 << 13)
135 #define PAD_CTL_INPUT_DDR (1 << 9)
136 #define PAD_CTL_HYS (1 << 8)
138 #define PAD_CTL_PKE (1 << 7)
139 #define PAD_CTL_PUE (1 << 6 | PAD_CTL_PKE)
140 #define PAD_CTL_PUS_100K_DOWN (0 << 4 | PAD_CTL_PUE)
141 #define PAD_CTL_PUS_47K_UP (1 << 4 | PAD_CTL_PUE)
142 #define PAD_CTL_PUS_100K_UP (2 << 4 | PAD_CTL_PUE)
143 #define PAD_CTL_PUS_22K_UP (3 << 4 | PAD_CTL_PUE)
145 #define PAD_CTL_ODE (1 << 3)
147 #define PAD_CTL_DSE_LOW (0 << 1)
148 #define PAD_CTL_DSE_MED (1 << 1)
149 #define PAD_CTL_DSE_HIGH (2 << 1)
150 #define PAD_CTL_DSE_MAX (3 << 1)
154 #define PAD_CTL_SRE_SLOW (0 << 0)
155 #define PAD_CTL_SRE_FAST (1 << 0)
157 #define IOMUX_CONFIG_SION 0x10
159 #define GPIO_PIN_MASK 0x1f
160 #define GPIO_PORT_SHIFT 5
161 #define GPIO_PORT_MASK (0x7 << GPIO_PORT_SHIFT)
162 #define GPIO_PORTA (0 << GPIO_PORT_SHIFT)
163 #define GPIO_PORTB (1 << GPIO_PORT_SHIFT)
164 #define GPIO_PORTC (2 << GPIO_PORT_SHIFT)
165 #define GPIO_PORTD (3 << GPIO_PORT_SHIFT)
166 #define GPIO_PORTE (4 << GPIO_PORT_SHIFT)
167 #define GPIO_PORTF (5 << GPIO_PORT_SHIFT)
169 void imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad);
170 void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list,
173 #endif /* __MACH_IOMUX_V3_H__*/