drivers/i2c/omap24xx_i2c.h

2  * (C) Copyright 2004-2010
5  * SPDX-License-Identifier:	GPL-2.0+
10 /* I2C masks */
12 /* I2C Interrupt Enable Register (I2C_IE): */
20 /* I2C Status Register (I2C_STAT): */
34 /* I2C Interrupt Code Register (I2C_INTCODE): */
44 /* I2C Buffer Configuration Register (I2C_BUF): */
49 /* I2C Configuration Register (I2C_CON): */
51 #define I2C_CON_EN	(1 << 15)  /* I2C module enable */
52 #define I2C_CON_BE	(1 << 14)  /* Big endian mode */
53 #define I2C_CON_STB	(1 << 11)  /* Start byte mode (master mode only) */
54 #define I2C_CON_MST	(1 << 10)  /* Master/slave mode */
55 #define I2C_CON_TRX	(1 << 9)   /* Transmitter/receiver mode */
56 				   /* (master mode only) */
58 #define I2C_CON_STP	(1 << 1)   /* Stop condition (master mode only) */
59 #define I2C_CON_STT	(1 << 0)   /* Start condition (master mode only) */
61 /* I2C System Test Register (I2C_SYSTEST): */
64 #define I2C_SYSTEST_FREE	(1 << 14) /* Free running mode, on brkpoint) */
65 #define I2C_SYSTEST_TMODE_MASK	(3 << 12) /* Test mode select */
66 #define I2C_SYSTEST_TMODE_SHIFT	(12)	  /* Test mode select */
72 /* I2C System Status Register (I2C_SYSS): */
102  * The reference minimum clock for fast mode is 9.6MHz
103  * The reference minimum clock for standard mode is 4MHz
113  * thigh = sclh + sclh_trim = (sampling clock * (1 - tlow_duty)) / speed
128  * These are the trim values for standard and fast speed