1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3 * Table of the Omap register configurations for the FUNC_MUX and
4 * PULL_DWN combinations.
5 *
6 * Copyright (C) 2004 - 2008 Texas Instruments Inc.
7 * Copyright (C) 2003 - 2008 Nokia Corporation
8 *
9 * Written by Tony Lindgren
10 *
11 * NOTE: Please use the following naming style for new pin entries.
12 * For example, W8_1610_MMC2_DAT0, where:
13 * - W8 = ball
14 * - 1610 = 1510 or 1610, none if common for both 1510 and 1610
15 * - MMC2_DAT0 = function
16 */
17
18 #ifndef __ASM_ARCH_MUX_H
19 #define __ASM_ARCH_MUX_H
20
21 #include <linux/soc/ti/omap1-mux.h>
22
23 #define PU_PD_SEL_NA 0 /* No pu_pd reg available */
24 #define PULL_DWN_CTRL_NA 0 /* No pull-down control needed */
25
26 #ifdef CONFIG_OMAP_MUX_DEBUG
27 #define MUX_REG(reg, mode_offset, mode) .mux_reg_name = "FUNC_MUX_CTRL_"#reg, \
28 .mux_reg = FUNC_MUX_CTRL_##reg, \
29 .mask_offset = mode_offset, \
30 .mask = mode,
31
32 #define PULL_REG(reg, bit, status) .pull_name = "PULL_DWN_CTRL_"#reg, \
33 .pull_reg = PULL_DWN_CTRL_##reg, \
34 .pull_bit = bit, \
35 .pull_val = status,
36
37 #define PU_PD_REG(reg, status) .pu_pd_name = "PU_PD_SEL_"#reg, \
38 .pu_pd_reg = PU_PD_SEL_##reg, \
39 .pu_pd_val = status,
40
41 #define MUX_REG_7XX(reg, mode_offset, mode) .mux_reg_name = "OMAP7XX_IO_CONF_"#reg, \
42 .mux_reg = OMAP7XX_IO_CONF_##reg, \
43 .mask_offset = mode_offset, \
44 .mask = mode,
45
46 #define PULL_REG_7XX(reg, bit, status) .pull_name = "OMAP7XX_IO_CONF_"#reg, \
47 .pull_reg = OMAP7XX_IO_CONF_##reg, \
48 .pull_bit = bit, \
49 .pull_val = status,
50
51 #else
52
53 #define MUX_REG(reg, mode_offset, mode) .mux_reg = FUNC_MUX_CTRL_##reg, \
54 .mask_offset = mode_offset, \
55 .mask = mode,
56
57 #define PULL_REG(reg, bit, status) .pull_reg = PULL_DWN_CTRL_##reg, \
58 .pull_bit = bit, \
59 .pull_val = status,
60
61 #define PU_PD_REG(reg, status) .pu_pd_reg = PU_PD_SEL_##reg, \
62 .pu_pd_val = status,
63
64 #define MUX_REG_7XX(reg, mode_offset, mode) \
65 .mux_reg = OMAP7XX_IO_CONF_##reg, \
66 .mask_offset = mode_offset, \
67 .mask = mode,
68
69 #define PULL_REG_7XX(reg, bit, status) .pull_reg = OMAP7XX_IO_CONF_##reg, \
70 .pull_bit = bit, \
71 .pull_val = status,
72
73 #endif /* CONFIG_OMAP_MUX_DEBUG */
74
75 #define MUX_CFG(desc, mux_reg, mode_offset, mode, \
76 pull_reg, pull_bit, pull_status, \
77 pu_pd_reg, pu_pd_status, debug_status) \
78 { \
79 .name = desc, \
80 .debug = debug_status, \
81 MUX_REG(mux_reg, mode_offset, mode) \
82 PULL_REG(pull_reg, pull_bit, pull_status) \
83 PU_PD_REG(pu_pd_reg, pu_pd_status) \
84 },
85
86
87 /*
88 * OMAP730/850 has a slightly different config for the pin mux.
89 * - config regs are the OMAP7XX_IO_CONF_x regs (see omap7xx.h) regs and
90 * not the FUNC_MUX_CTRL_x regs from hardware.h
91 * - for pull-up/down, only has one enable bit which is in the same register
92 * as mux config
93 */
94 #define MUX_CFG_7XX(desc, mux_reg, mode_offset, mode, \
95 pull_bit, pull_status, debug_status)\
96 { \
97 .name = desc, \
98 .debug = debug_status, \
99 MUX_REG_7XX(mux_reg, mode_offset, mode) \
100 PULL_REG_7XX(mux_reg, pull_bit, pull_status) \
101 PU_PD_REG(NA, 0) \
102 },
103
104 struct pin_config {
105 char *name;
106 const unsigned int mux_reg;
107 unsigned char debug;
108
109 const unsigned char mask_offset;
110 const unsigned char mask;
111
112 const char *pull_name;
113 const unsigned int pull_reg;
114 const unsigned char pull_val;
115 const unsigned char pull_bit;
116
117 const char *pu_pd_name;
118 const unsigned int pu_pd_reg;
119 const unsigned char pu_pd_val;
120
121 #if defined(CONFIG_OMAP_MUX_DEBUG) || defined(CONFIG_OMAP_MUX_WARNINGS)
122 const char *mux_reg_name;
123 #endif
124
125 };
126
127 struct omap_mux_cfg {
128 struct pin_config *pins;
129 unsigned long size;
130 int (*cfg_reg)(const struct pin_config *cfg);
131 };
132
133 #ifdef CONFIG_OMAP_MUX
134 /* setup pin muxing in Linux */
135 extern int omap1_mux_init(void);
136 extern int omap_mux_register(struct omap_mux_cfg *);
137 #else
138 /* boot loader does it all (no warnings from CONFIG_OMAP_MUX_WARNINGS) */
139 static inline int omap1_mux_init(void) { return 0; }
140 #endif
141
142 extern int omap2_mux_init(void);
143
144 #endif
145
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