/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2011 * Ben Gray . * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef _TI_I2C_H_ #define _TI_I2C_H_ /** * Header file for the OMAP I2C driver. * * Simply contains register bit flags. */ /* * OMAP4 I2C Registers, Summary 1 */ #define I2C_REG_IE 0x84 #define I2C_IE_XDR (1UL << 14) /* Transmit draining interrupt */ #define I2C_IE_RDR (1UL << 13) /* Receive draining interrupt */ #define I2C_IE_AAS (1UL << 9) /* Addressed as Slave interrupt */ #define I2C_IE_BF (1UL << 8) /* Bus Free interrupt */ #define I2C_IE_AERR (1UL << 7) /* Access Error interrupt */ #define I2C_IE_STC (1UL << 6) /* Start Condition interrupt */ #define I2C_IE_GC (1UL << 5) /* General Call interrupt */ #define I2C_IE_XRDY (1UL << 4) /* Transmit Data Ready interrupt */ #define I2C_IE_RRDY (1UL << 3) /* Receive Data Ready interrupt */ #define I2C_IE_ARDY (1UL << 2) /* Register Access Ready interrupt */ #define I2C_IE_NACK (1UL << 1) /* No Acknowledgment interrupt */ #define I2C_IE_AL (1UL << 0) /* Arbitration Lost interrupt */ #define I2C_REG_STAT 0x88 #define I2C_STAT_XDR (1UL << 14) #define I2C_STAT_RDR (1UL << 13) #define I2C_STAT_BB (1UL << 12) #define I2C_STAT_ROVR (1UL << 11) #define I2C_STAT_XUDF (1UL << 10) #define I2C_STAT_AAS (1UL << 9) #define I2C_STAT_BF (1UL << 8) #define I2C_STAT_AERR (1UL << 7) #define I2C_STAT_STC (1UL << 6) #define I2C_STAT_GC (1UL << 5) #define I2C_STAT_XRDY (1UL << 4) #define I2C_STAT_RRDY (1UL << 3) #define I2C_STAT_ARDY (1UL << 2) #define I2C_STAT_NACK (1UL << 1) #define I2C_STAT_AL (1UL << 0) #define I2C_REG_SYSS 0x90 #define I2C_SYSS_RDONE (1UL << 0) #define I2C_REG_BUF 0x94 #define I2C_BUF_RXFIFO_CLR (1UL << 14) #define I2C_BUF_TXFIFO_CLR (1UL << 6) #define I2C_BUF_RXTRSH_SHIFT 8 #define I2C_BUF_TRSH_MASK 0x3f #define I2C_REG_CNT 0x98 #define I2C_REG_DATA 0x9c #define I2C_REG_CON 0xa4 #define I2C_CON_I2C_EN (1UL << 15) #define I2C_CON_OPMODE_STD (0UL << 12) #define I2C_CON_OPMODE_HS (1UL << 12) #define I2C_CON_OPMODE_SCCB (2UL << 12) #define I2C_CON_OPMODE_MASK (3UL << 13) #define I2C_CON_I2C_STB (1UL << 11) #define I2C_CON_MST (1UL << 10) #define I2C_CON_TRX (1UL << 9) #define I2C_CON_XSA (1UL << 8) #define I2C_CON_XOA0 (1UL << 7) #define I2C_CON_XOA1 (1UL << 6) #define I2C_CON_XOA2 (1UL << 5) #define I2C_CON_XOA3 (1UL << 4) #define I2C_CON_STP (1UL << 1) #define I2C_CON_STT (1UL << 0) #define I2C_REG_OA0 0xa8 #define I2C_REG_SA 0xac #define I2C_REG_PSC 0xb0 #define I2C_PSC_MASK 0xff #define I2C_REG_SCLL 0xb4 #define I2C_SCLL_MASK 0xff #define I2C_HSSCLL_SHIFT 8 #define I2C_REG_SCLH 0xb8 #define I2C_SCLH_MASK 0xff #define I2C_HSSCLH_SHIFT 8 #define I2C_REG_SYSTEST 0xbc #define I2C_REG_BUFSTAT 0xc0 #define I2C_BUFSTAT_FIFODEPTH_MASK 0x3 #define I2C_BUFSTAT_FIFODEPTH_SHIFT 14 #define I2C_REG_OA1 0xc4 #define I2C_REG_OA2 0xc8 #define I2C_REG_OA3 0xcc #define I2C_REG_ACTOA 0xd0 #define I2C_REG_SBLOCK 0xd4 /* * OMAP4 I2C Registers, Summary 2 */ #define I2C_REG_REVNB_LO 0x00 #define I2C_REG_REVNB_HI 0x04 #define I2C_REG_SYSC 0x10 #define I2C_REG_SYSC_SRST (1UL << 1) #define I2C_REG_STATUS_RAW 0x24 #define I2C_REG_STATUS 0x28 #define I2C_REG_IRQENABLE_SET 0x2C #define I2C_REG_IRQENABLE_CLR 0x30 #define I2C_CLK 96000000UL /* 96MHz */ #define I2C_ICLK 12000000UL /* 12MHz */ #endif /* _TI_I2C_H_ */