The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/include/dt-bindings/pinctrl/omap.h

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    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)
   68 #define AM33XX_PADCONF(pa, dir, mux)    OMAP_IOPAD_OFFSET((pa), 0x0800) ((dir) | (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

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