xref: /linux/include/dt-bindings/pinctrl/omap.h (revision cbecf716ca618fd44feda6bd9a64a8179d031fc5)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * This header provides constants for OMAP pinctrl bindings.
4  *
5  * Copyright (C) 2009 Nokia
6  * Copyright (C) 2009-2010 Texas Instruments
7  */
8 
9 #ifndef _DT_BINDINGS_PINCTRL_OMAP_H
10 #define _DT_BINDINGS_PINCTRL_OMAP_H
11 
12 /* 34xx mux mode options for each pin. See TRM for options */
13 #define MUX_MODE0	0
14 #define MUX_MODE1	1
15 #define MUX_MODE2	2
16 #define MUX_MODE3	3
17 #define MUX_MODE4	4
18 #define MUX_MODE5	5
19 #define MUX_MODE6	6
20 #define MUX_MODE7	7
21 
22 /* 24xx/34xx mux bit defines */
23 #define PULL_ENA		(1 << 3)
24 #define PULL_UP			(1 << 4)
25 #define ALTELECTRICALSEL	(1 << 5)
26 
27 /* omap3/4/5 specific mux bit defines */
28 #define INPUT_EN		(1 << 8)
29 #define OFF_EN			(1 << 9)
30 #define OFFOUT_EN		(1 << 10)
31 #define OFFOUT_VAL		(1 << 11)
32 #define OFF_PULL_EN		(1 << 12)
33 #define OFF_PULL_UP		(1 << 13)
34 #define WAKEUP_EN		(1 << 14)
35 #define WAKEUP_EVENT		(1 << 15)
36 
37 /* Active pin states */
38 #define PIN_OUTPUT		0
39 #define PIN_OUTPUT_PULLUP	(PIN_OUTPUT | PULL_ENA | PULL_UP)
40 #define PIN_OUTPUT_PULLDOWN	(PIN_OUTPUT | PULL_ENA)
41 #define PIN_INPUT		INPUT_EN
42 #define PIN_INPUT_PULLUP	(PULL_ENA | INPUT_EN | PULL_UP)
43 #define PIN_INPUT_PULLDOWN	(PULL_ENA | INPUT_EN)
44 
45 /* Off mode states */
46 #define PIN_OFF_NONE		0
47 #define PIN_OFF_OUTPUT_HIGH	(OFF_EN | OFFOUT_EN | OFFOUT_VAL)
48 #define PIN_OFF_OUTPUT_LOW	(OFF_EN | OFFOUT_EN)
49 #define PIN_OFF_INPUT_PULLUP	(OFF_EN | OFFOUT_EN | OFF_PULL_EN | OFF_PULL_UP)
50 #define PIN_OFF_INPUT_PULLDOWN	(OFF_EN | OFFOUT_EN | OFF_PULL_EN)
51 #define PIN_OFF_WAKEUPENABLE	WAKEUP_EN
52 
53 /*
54  * Macros to allow using the absolute physical address instead of the
55  * padconf registers instead of the offset from padconf base.
56  */
57 #define OMAP_IOPAD_OFFSET(pa, offset)	(((pa) & 0xffff) - (offset))
58 
59 #define OMAP2420_CORE_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x0030) (val)
60 #define OMAP2430_CORE_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x2030) (val)
61 #define OMAP3_CORE1_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x2030) (val)
62 #define OMAP3430_CORE2_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x25d8) (val)
63 #define OMAP3630_CORE2_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x25a0) (val)
64 #define OMAP3_WKUP_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x2a00) (val)
65 #define DM814X_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
66 #define DM816X_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
67 #define AM33XX_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val) (0)
68 #define AM33XX_PADCONF(pa, conf, mux)	OMAP_IOPAD_OFFSET((pa), 0x0800) (conf) (mux)
69 
70 /*
71  * Macros to allow using the offset from the padconf physical address
72  * instead  of the offset from padconf base.
73  */
74 #define OMAP_PADCONF_OFFSET(offset, base_offset)	((offset) - (base_offset))
75 
76 #define OMAP4_IOPAD(offset, val)	OMAP_PADCONF_OFFSET((offset), 0x0040) (val)
77 #define OMAP5_IOPAD(offset, val)	OMAP_PADCONF_OFFSET((offset), 0x0040) (val)
78 
79 /*
80  * Define some commonly used pins configured by the boards.
81  * Note that some boards use alternative pins, so check
82  * the schematics before using these.
83  */
84 #define OMAP3_UART1_RX		0x152
85 #define OMAP3_UART2_RX		0x14a
86 #define OMAP3_UART3_RX		0x16e
87 #define OMAP4_UART2_RX		0xdc
88 #define OMAP4_UART3_RX		0x104
89 #define OMAP4_UART4_RX		0x11c
90 
91 #endif
92 
93