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      1 /*	$NetBSD: omap.h,v 1.1.1.4 2021/11/07 16:49:56 jmcneill Exp $	*/
      2 
      3 /* SPDX-License-Identifier: GPL-2.0 */
      4 /*
      5  * This header provides constants for OMAP pinctrl bindings.
      6  *
      7  * Copyright (C) 2009 Nokia
      8  * Copyright (C) 2009-2010 Texas Instruments
      9  */
     10 
     11 #ifndef _DT_BINDINGS_PINCTRL_OMAP_H
     12 #define _DT_BINDINGS_PINCTRL_OMAP_H
     13 
     14 /* 34xx mux mode options for each pin. See TRM for options */
     15 #define MUX_MODE0	0
     16 #define MUX_MODE1	1
     17 #define MUX_MODE2	2
     18 #define MUX_MODE3	3
     19 #define MUX_MODE4	4
     20 #define MUX_MODE5	5
     21 #define MUX_MODE6	6
     22 #define MUX_MODE7	7
     23 
     24 /* 24xx/34xx mux bit defines */
     25 #define PULL_ENA		(1 << 3)
     26 #define PULL_UP			(1 << 4)
     27 #define ALTELECTRICALSEL	(1 << 5)
     28 
     29 /* omap3/4/5 specific mux bit defines */
     30 #define INPUT_EN		(1 << 8)
     31 #define OFF_EN			(1 << 9)
     32 #define OFFOUT_EN		(1 << 10)
     33 #define OFFOUT_VAL		(1 << 11)
     34 #define OFF_PULL_EN		(1 << 12)
     35 #define OFF_PULL_UP		(1 << 13)
     36 #define WAKEUP_EN		(1 << 14)
     37 #define WAKEUP_EVENT		(1 << 15)
     38 
     39 /* Active pin states */
     40 #define PIN_OUTPUT		0
     41 #define PIN_OUTPUT_PULLUP	(PIN_OUTPUT | PULL_ENA | PULL_UP)
     42 #define PIN_OUTPUT_PULLDOWN	(PIN_OUTPUT | PULL_ENA)
     43 #define PIN_INPUT		INPUT_EN
     44 #define PIN_INPUT_PULLUP	(PULL_ENA | INPUT_EN | PULL_UP)
     45 #define PIN_INPUT_PULLDOWN	(PULL_ENA | INPUT_EN)
     46 
     47 /* Off mode states */
     48 #define PIN_OFF_NONE		0
     49 #define PIN_OFF_OUTPUT_HIGH	(OFF_EN | OFFOUT_EN | OFFOUT_VAL)
     50 #define PIN_OFF_OUTPUT_LOW	(OFF_EN | OFFOUT_EN)
     51 #define PIN_OFF_INPUT_PULLUP	(OFF_EN | OFFOUT_EN | OFF_PULL_EN | OFF_PULL_UP)
     52 #define PIN_OFF_INPUT_PULLDOWN	(OFF_EN | OFFOUT_EN | OFF_PULL_EN)
     53 #define PIN_OFF_WAKEUPENABLE	WAKEUP_EN
     54 
     55 /*
     56  * Macros to allow using the absolute physical address instead of the
     57  * padconf registers instead of the offset from padconf base.
     58  */
     59 #define OMAP_IOPAD_OFFSET(pa, offset)	(((pa) & 0xffff) - (offset))
     60 
     61 #define OMAP2420_CORE_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x0030) (val)
     62 #define OMAP2430_CORE_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x2030) (val)
     63 #define OMAP3_CORE1_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x2030) (val)
     64 #define OMAP3430_CORE2_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x25d8) (val)
     65 #define OMAP3630_CORE2_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x25a0) (val)
     66 #define OMAP3_WKUP_IOPAD(pa, val)	OMAP_IOPAD_OFFSET((pa), 0x2a00) (val)
     67 #define DM814X_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
     68 #define DM816X_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val)
     69 #define AM33XX_IOPAD(pa, val)		OMAP_IOPAD_OFFSET((pa), 0x0800) (val) (0)
     70 #define AM33XX_PADCONF(pa, conf, mux)	OMAP_IOPAD_OFFSET((pa), 0x0800) (conf) (mux)
     71 
     72 /*
     73  * Macros to allow using the offset from the padconf physical address
     74  * instead  of the offset from padconf base.
     75  */
     76 #define OMAP_PADCONF_OFFSET(offset, base_offset)	((offset) - (base_offset))
     77 
     78 #define OMAP4_IOPAD(offset, val)	OMAP_PADCONF_OFFSET((offset), 0x0040) (val)
     79 #define OMAP5_IOPAD(offset, val)	OMAP_PADCONF_OFFSET((offset), 0x0040) (val)
     80 
     81 /*
     82  * Define some commonly used pins configured by the boards.
     83  * Note that some boards use alternative pins, so check
     84  * the schematics before using these.
     85  */
     86 #define OMAP3_UART1_RX		0x152
     87 #define OMAP3_UART2_RX		0x14a
     88 #define OMAP3_UART3_RX		0x16e
     89 #define OMAP4_UART2_RX		0xdc
     90 #define OMAP4_UART3_RX		0x104
     91 #define OMAP4_UART4_RX		0x11c
     92 
     93 #endif
     94 
     95