ti_iicreg.h

   1 /*      $OpenBSD: ti_iicreg.h,v 1.1 2013/11/24 15:00:22 rapha Exp $     */
   2 /*      $NetBSD: ti_iicreg.h,v 1.1 2013/04/17 14:33:06 bouyer Exp $     */
   3
   4 /*
   5  * Copyright (c) 2013 Manuel Bouyer.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27
  28 /* register definitions for the i2c controller found in the
  29  * Texas Instrument AM335x SOC
  30  */
  31
  32 #ifndef _AM335XIICREG_H
  33 #define _AM335XIICREG_H
  34
  35 #define AM335X_I2C_REVNB_LO             0x00
  36 #define         I2C_REVNB_LO_RTL(x)             (((x) >> 11) & 0x01f)
  37 #define         I2C_REVNB_LO_MAJOR(x)           (((x) >>  8) & 0x007)
  38 #define         I2C_REVNB_LO_CUSTOM(x)          (((x) >>  6) & 0x003)
  39 #define         I2C_REVNB_LO_MINOR(x)           (((x) >>  0) & 0x01f)
  40 #define AM335X_I2C_REVNB_HI             0x04
  41 #define         I2C_REVNB_HI_SCHEME(x)          (((x) >> 14) & 0x003)
  42 #define         I2C_REVNB_HI_FUNC(x)            (((x) >>  0) & 0xfff)
  43 #define AM335X_I2C_SYSC                 0x10
  44 #define         I2C_SYSC_CLKACTIVITY_OCP        0x0010
  45 #define         I2C_SYSC_CLKACTIVITY_SYSTEM     0x0020
  46 #define         I2C_SYSC_IDLE_MASK              0x0018
  47 #define         I2C_SYSC_IDLE_FORCE             0x0000
  48 #define         I2C_SYSC_IDLE_SMART             0x0010
  49 #define         I2C_SYSC_IDLE_NONE              0x0008
  50 #define         I2C_SYSC_ENAWAKEUP              0x0004
  51 #define         I2C_SYSC_SRST                   0x0002
  52 #define         I2C_SYSC_AUTOIDLE               0x0001
  53 #define AM335X_I2C_IRQSTATUS_RAW                0x24
  54 #define AM335X_I2C_IRQSTATUS            0x28
  55 #define AM335X_I2C_IRQENABLE_SET                0x2C
  56 #define AM335X_I2C_IRQENABLE_CLR                0x30
  57 #define AM335X_I2C_WE                   0x34
  58 #define         I2C_IRQSTATUS_XDR               0x4000
  59 #define         I2C_IRQSTATUS_RDR               0x2000
  60 #define         I2C_IRQSTATUS_BB                0x1000
  61 #define         I2C_IRQSTATUS_ROVR              0x0800
  62 #define         I2C_IRQSTATUS_XUDF              0x0400
  63 #define         I2C_IRQSTATUS_AAS               0x0200
  64 #define         I2C_IRQSTATUS_BF                0x0100
  65 #define         I2C_IRQSTATUS_AERR              0x0080
  66 #define         I2C_IRQSTATUS_STC               0x0040
  67 #define         I2C_IRQSTATUS_GC                0x0020
  68 #define         I2C_IRQSTATUS_XRDY              0x0010
  69 #define         I2C_IRQSTATUS_RRDY              0x0008
  70 #define         I2C_IRQSTATUS_ARDY              0x0004
  71 #define         I2C_IRQSTATUS_NACK              0x0002
  72 #define         I2C_IRQSTATUS_AL                0x0001
  73 #define AM335X_I2C_DMARXENABLE_SET      0x38
  74 #define AM335X_I2C_DMATXENABLE_SET      0x3C
  75 #define AM335X_I2C_DMARXENABLE_CLR      0x40
  76 #define         I2C_DMARXENABLE                 0x0001
  77 #define AM335X_I2C_DMATXENABLE_CLR      0x44
  78 #define         I2C_DMATXENABLE                 0x0001
  79 #define AM335X_I2C_DMARXWAKE_EN         0x48
  80         /* use same bits as IRQ */
  81 #define AM335X_I2C_DMATXWAKE_EN         0x4C
  82         /* use same bits as IRQ */
  83 #define AM335X_I2C_SYSS                 0x90
  84 #define         I2C_SYSS_RDONE                  0x0001
  85 #define AM335X_I2C_BUF                  0x94
  86 #define         I2C_BUF_RDMA_EN                 0x8000
  87 #define         I2C_BUF_RXFIFO_CLR              0x4000
  88 #define         I2C_BUF_RXTRSH_MASK             0x3f00
  89 #define         I2C_BUF_RXTRSH(x)               ((x) << 8)
  90 #define         I2C_BUF_XDMA_EN                 0x0080
  91 #define         I2C_BUF_TXFIFO_CLR              0x0040
  92 #define         I2C_BUF_TXTRSH_MASK             0x003f
  93 #define         I2C_BUF_TXTRSH(x)               ((x) << 0)
  94 #define AM335X_I2C_CNT                  0x98
  95 #define         I2C_CNT_MASK                    0xffff
  96 #define AM335X_I2C_DATA                 0x9C
  97 #define         I2C_DATA_MASK                   0x00ff
  98 #define AM335X_I2C_CON                  0xA4
  99 #define         I2C_CON_EN                      0x8000
 100 #define         I2C_CON_STB                     0x0800
 101 #define         I2C_CON_MST                     0x0400
 102 #define         I2C_CON_TRX                     0x0200
 103 #define         I2C_CON_XSA                     0x0100
 104 #define         I2C_CON_XOA0                    0x0080
 105 #define         I2C_CON_XOA1                    0x0040
 106 #define         I2C_CON_XOA2                    0x0020
 107 #define         I2C_CON_XOA3                    0x0010
 108 #define         I2C_CON_STP                     0x0002
 109 #define         I2C_CON_STT                     0x0001
 110 #define AM335X_I2C_OA                   0xA8
 111 #define         I2C_OA_MASK                     0x03ff
 112 #define AM335X_I2C_SA                   0xAC
 113 #define         I2C_SA_MASK                     0x03ff
 114 #define AM335X_I2C_PSC                  0xB0
 115 #define         I2C_PSC_MASK                    0x000f
 116 #define AM335X_I2C_SCLL                 0xB4
 117 #define         I2C_SCLL_MASK                   0x000f
 118 #define AM335X_I2C_SCLH                 0xB8
 119 #define         I2C_SCLH_MASK                   0x000f
 120 #define AM335X_I2C_SYSTEST              0xBC
 121 #define AM335X_I2C_BUFSTAT              0xC0
 122 #define         I2C_BUFSTAT_FIFODEPTH(x)        (((x) >> 14) & 0x03)
 123 #define         I2C_BUFSTAT_RXSTAT(x)           (((x) >>  8) & 0x3f)
 124 #define         I2C_BUFSTAT_TXSTAT(x)           (((x) >>  0) & 0x3f)
 125 #define AM335X_I2C_OA1                  0xC4
 126 #define AM335X_I2C_OA2                  0xC8
 127 #define AM335X_I2C_OA3                  0xCC
 128         /* same bits as I2C_OA */
 129 #define AM335X_I2C_ACTOA                        0xD0
 130 #define AM335X_I2C_SBLOCK               0xD4
 131 #define         I2C_ACTOA_OA3_ACT               0x0008
 132 #define         I2C_ACTOA_OA2_ACT               0x0004
 133 #define         I2C_ACTOA_OA1_ACT               0x0002
 134 #define         I2C_ACTOA_OA0_ACT               0x0001
 135
 136 #endif /* _AM335XIICREG_H */