u-boot/arch/powerpc/include/asm/fsl_i2c.h
Tom Rini 5b8031ccb4 Add more SPDX-License-Identifier tags
In a number of places we had wordings of the GPL (or LGPL in a few
cases) license text that were split in such a way that it wasn't caught
previously.  Convert all of these to the correct SPDX-License-Identifier
tag.

Signed-off-by: Tom Rini <trini@konsulko.com>
2016-01-19 08:31:21 -05:00

71 lines
1.6 KiB
C

/*
* Freescale I2C Controller
*
* Copyright 2006 Freescale Semiconductor, Inc.
*
* Based on earlier versions by Gleb Natapov <gnatapov@mrv.com>,
* Xianghua Xiao <x.xiao@motorola.com>, Eran Liberty (liberty@freescale.com),
* and Jeff Brown.
* Some bits are taken from linux driver writen by adrian@humboldt.co.uk.
*
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef _ASM_FSL_I2C_H_
#define _ASM_FSL_I2C_H_
#include <asm/types.h>
typedef struct fsl_i2c {
u8 adr; /* I2C slave address */
u8 res0[3];
#define I2C_ADR 0xFE
#define I2C_ADR_SHIFT 1
#define I2C_ADR_RES ~(I2C_ADR)
u8 fdr; /* I2C frequency divider register */
u8 res1[3];
#define IC2_FDR 0x3F
#define IC2_FDR_SHIFT 0
#define IC2_FDR_RES ~(IC2_FDR)
u8 cr; /* I2C control redister */
u8 res2[3];
#define I2C_CR_MEN 0x80
#define I2C_CR_MIEN 0x40
#define I2C_CR_MSTA 0x20
#define I2C_CR_MTX 0x10
#define I2C_CR_TXAK 0x08
#define I2C_CR_RSTA 0x04
#define I2C_CR_BIT6 0x02 /* required for workaround A004447 */
#define I2C_CR_BCST 0x01
u8 sr; /* I2C status register */
u8 res3[3];
#define I2C_SR_MCF 0x80
#define I2C_SR_MAAS 0x40
#define I2C_SR_MBB 0x20
#define I2C_SR_MAL 0x10
#define I2C_SR_BCSTM 0x08
#define I2C_SR_SRW 0x04
#define I2C_SR_MIF 0x02
#define I2C_SR_RXAK 0x01
u8 dr; /* I2C data register */
u8 res4[3];
#define I2C_DR 0xFF
#define I2C_DR_SHIFT 0
#define I2C_DR_RES ~(I2C_DR)
u8 dfsrr; /* I2C digital filter sampling rate register */
u8 res5[3];
#define I2C_DFSRR 0x3F
#define I2C_DFSRR_SHIFT 0
#define I2C_DFSRR_RES ~(I2C_DR)
/* Fill out the reserved block */
u8 res6[0xE8];
} fsl_i2c_t;
#endif /* _ASM_I2C_H_ */