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 */ 137