| 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 */ |