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23608e23 JL |
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 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License | |
10 | * as published by the Free Software Foundation; either version 2 | |
11 | * of the License, or (at your option) any later version. | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, | |
20 | * MA 02110-1301, USA. | |
21 | */ | |
22 | ||
23 | #ifndef __MACH_IOMUX_V3_H__ | |
24 | #define __MACH_IOMUX_V3_H__ | |
25 | ||
26 | /* | |
27 | * build IOMUX_PAD structure | |
28 | * | |
29 | * This iomux scheme is based around pads, which are the physical balls | |
30 | * on the processor. | |
31 | * | |
32 | * - Each pad has a pad control register (IOMUXC_SW_PAD_CTRL_x) which controls | |
33 | * things like driving strength and pullup/pulldown. | |
34 | * - Each pad can have but not necessarily does have an output routing register | |
35 | * (IOMUXC_SW_MUX_CTL_PAD_x). | |
36 | * - Each pad can have but not necessarily does have an input routing register | |
37 | * (IOMUXC_x_SELECT_INPUT) | |
38 | * | |
39 | * The three register sets do not have a fixed offset to each other, | |
40 | * hence we order this table by pad control registers (which all pads | |
41 | * have) and put the optional i/o routing registers into additional | |
42 | * fields. | |
43 | * | |
44 | * The naming convention for the pad modes is SOC_PAD_<padname>__<padmode> | |
45 | * If <padname> or <padmode> refers to a GPIO, it is named GPIO_<unit>_<num> | |
46 | * | |
47 | * IOMUX/PAD Bit field definitions | |
48 | * | |
49 | * MUX_CTRL_OFS: 0..11 (12) | |
50 | * PAD_CTRL_OFS: 12..23 (12) | |
51 | * SEL_INPUT_OFS: 24..35 (12) | |
52 | * MUX_MODE + SION: 36..40 (5) | |
53 | * PAD_CTRL + NO_PAD_CTRL: 41..58 (18) | |
54 | * SEL_INP: 59..62 (4) | |
55 | * reserved: 63 (1) | |
56 | */ | |
57 | ||
58 | typedef u64 iomux_v3_cfg_t; | |
59 | ||
60 | #define MUX_CTRL_OFS_SHIFT 0 | |
61 | #define MUX_CTRL_OFS_MASK ((iomux_v3_cfg_t)0xfff << MUX_CTRL_OFS_SHIFT) | |
62 | #define MUX_PAD_CTRL_OFS_SHIFT 12 | |
63 | #define MUX_PAD_CTRL_OFS_MASK ((iomux_v3_cfg_t)0xfff << \ | |
64 | MUX_PAD_CTRL_OFS_SHIFT) | |
65 | #define MUX_SEL_INPUT_OFS_SHIFT 24 | |
66 | #define MUX_SEL_INPUT_OFS_MASK ((iomux_v3_cfg_t)0xfff << \ | |
67 | MUX_SEL_INPUT_OFS_SHIFT) | |
68 | ||
69 | #define MUX_MODE_SHIFT 36 | |
70 | #define MUX_MODE_MASK ((iomux_v3_cfg_t)0x1f << MUX_MODE_SHIFT) | |
71 | #define MUX_PAD_CTRL_SHIFT 41 | |
72 | #define MUX_PAD_CTRL_MASK ((iomux_v3_cfg_t)0x3ffff << MUX_PAD_CTRL_SHIFT) | |
73 | #define MUX_SEL_INPUT_SHIFT 59 | |
74 | #define MUX_SEL_INPUT_MASK ((iomux_v3_cfg_t)0xf << MUX_SEL_INPUT_SHIFT) | |
75 | ||
76 | #define MUX_PAD_CTRL(x) ((iomux_v3_cfg_t)(x) << MUX_PAD_CTRL_SHIFT) | |
77 | ||
78 | #define IOMUX_PAD(pad_ctrl_ofs, mux_ctrl_ofs, mux_mode, sel_input_ofs, \ | |
79 | sel_input, pad_ctrl) \ | |
80 | (((iomux_v3_cfg_t)(mux_ctrl_ofs) << MUX_CTRL_OFS_SHIFT) | \ | |
81 | ((iomux_v3_cfg_t)(mux_mode) << MUX_MODE_SHIFT) | \ | |
82 | ((iomux_v3_cfg_t)(pad_ctrl_ofs) << MUX_PAD_CTRL_OFS_SHIFT) | \ | |
83 | ((iomux_v3_cfg_t)(pad_ctrl) << MUX_PAD_CTRL_SHIFT) | \ | |
84 | ((iomux_v3_cfg_t)(sel_input_ofs) << MUX_SEL_INPUT_OFS_SHIFT)| \ | |
85 | ((iomux_v3_cfg_t)(sel_input) << MUX_SEL_INPUT_SHIFT)) | |
86 | ||
87 | #define NO_PAD_CTRL (1 << 17) | |
88 | #define GPIO_PIN_MASK 0x1f | |
89 | #define GPIO_PORT_SHIFT 5 | |
90 | #define GPIO_PORT_MASK (0x7 << GPIO_PORT_SHIFT) | |
91 | #define GPIO_PORTA (0 << GPIO_PORT_SHIFT) | |
92 | #define GPIO_PORTB (1 << GPIO_PORT_SHIFT) | |
93 | #define GPIO_PORTC (2 << GPIO_PORT_SHIFT) | |
94 | #define GPIO_PORTD (3 << GPIO_PORT_SHIFT) | |
95 | #define GPIO_PORTE (4 << GPIO_PORT_SHIFT) | |
96 | #define GPIO_PORTF (5 << GPIO_PORT_SHIFT) | |
97 | ||
dc88403e FE |
98 | #define PAD_CTL_HYS (1 << 16) |
99 | #define PAD_CTL_PUS_100K_DOWN (0 << 14) | |
100 | #define PAD_CTL_PUS_47K_UP (1 << 14) | |
101 | #define PAD_CTL_PUS_100K_UP (2 << 14) | |
102 | #define PAD_CTL_PUS_22K_UP (3 << 14) | |
103 | ||
104 | #define PAD_CTL_PUE (1 << 13) | |
105 | #define PAD_CTL_PKE (1 << 12) | |
106 | #define PAD_CTL_ODE (1 << 11) | |
107 | #define PAD_CTL_SPEED_LOW (1 << 6) | |
108 | #define PAD_CTL_SPEED_MED (2 << 6) | |
109 | #define PAD_CTL_SPEED_HIGH (3 << 6) | |
110 | #define PAD_CTL_DSE_DISABLE (0 << 3) | |
111 | #define PAD_CTL_DSE_240ohm (1 << 3) | |
112 | #define PAD_CTL_DSE_120ohm (2 << 3) | |
113 | #define PAD_CTL_DSE_80ohm (3 << 3) | |
114 | #define PAD_CTL_DSE_60ohm (4 << 3) | |
115 | #define PAD_CTL_DSE_48ohm (5 << 3) | |
116 | #define PAD_CTL_DSE_40ohm (6 << 3) | |
117 | #define PAD_CTL_DSE_34ohm (7 << 3) | |
118 | #define PAD_CTL_SRE_FAST (1 << 0) | |
119 | #define PAD_CTL_SRE_SLOW (0 << 0) | |
120 | ||
121 | #define IOMUX_CONFIG_SION 0x10 | |
122 | #define NO_MUX_I 0 | |
123 | #define NO_PAD_I 0 | |
23608e23 | 124 | |
59efa051 SR |
125 | void imx_iomux_v3_setup_pad(iomux_v3_cfg_t pad); |
126 | void imx_iomux_v3_setup_multiple_pads(iomux_v3_cfg_t const *pad_list, | |
5ae28d2d | 127 | unsigned count); |
23608e23 JL |
128 | |
129 | #endif /* __MACH_IOMUX_V3_H__*/ |