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u-boot/arch/arm/include/asm/arch-omap3/i2c.h
Steve Sakoman d708395d2f ARMV7: Modify i2c driver for more reliable operation on OMAP4
This patch modifies the init routine to follow the TRM
recommendations. It also modifies the i2c_read_byte function
to reflect subtle differences between the i2c controller in
OMAP3 and OMAP4.

Signed-off-by:  Steve Sakoman <steve@sakoman.com>
Acked-by: Nishanth Menon <menon.nishanth@gmail.com>
Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-08-05 10:11:24 -04:00

64 lines
1.8 KiB
C

/*
* (C) Copyright 2004-2008
* Texas Instruments, <www.ti.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _OMAP3_I2C_H_
#define _OMAP3_I2C_H_
#define I2C_BUS_MAX 3
#define I2C_DEFAULT_BASE I2C_BASE1
struct i2c {
unsigned short rev; /* 0x00 */
unsigned short res1;
unsigned short ie; /* 0x04 */
unsigned short res2;
unsigned short stat; /* 0x08 */
unsigned short res3;
unsigned short iv; /* 0x0C */
unsigned short res4;
unsigned short syss; /* 0x10 */
unsigned short res4a;
unsigned short buf; /* 0x14 */
unsigned short res5;
unsigned short cnt; /* 0x18 */
unsigned short res6;
unsigned short data; /* 0x1C */
unsigned short res7;
unsigned short sysc; /* 0x20 */
unsigned short res8;
unsigned short con; /* 0x24 */
unsigned short res9;
unsigned short oa; /* 0x28 */
unsigned short res10;
unsigned short sa; /* 0x2C */
unsigned short res11;
unsigned short psc; /* 0x30 */
unsigned short res12;
unsigned short scll; /* 0x34 */
unsigned short res13;
unsigned short sclh; /* 0x38 */
unsigned short res14;
unsigned short systest; /* 0x3c */
unsigned short res15;
};
#endif /* _OMAP3_I2C_H_ */